v1.5

Update Jetty version

.gitignore

@@ -4,6 +4,10 @@
 /*/bin
 /*/gen
 /*/target
-/*/*.iml
+/*/build
 /out
-/.idea
+/.idea
+/.project
+*.iml
+node_modules
+import_test

.travis.yml

@@ -0,0 +1,24 @@
+sudo: required
+dist: trusty
+language: java
+before_install:
+  - sudo apt-get -qq update
+  - sudo apt-get -y -q install tesseract-ocr tesseract-ocr-fra tesseract-ocr-ita tesseract-ocr-kor tesseract-ocr-rus tesseract-ocr-ukr tesseract-ocr-spa tesseract-ocr-ara tesseract-ocr-hin tesseract-ocr-deu tesseract-ocr-pol tesseract-ocr-jpn tesseract-ocr-por tesseract-ocr-tha tesseract-ocr-jpn tesseract-ocr-chi-sim tesseract-ocr-chi-tra
+  - sudo apt-get -y -q install haveged && sudo service haveged start
+after_success:
+  - mvn -Pprod -DskipTests clean install
+  - docker login -u $DOCKER_USER -p $DOCKER_PASS
+  - export REPO=sismics/docs
+  - export TAG=`if [ "$TRAVIS_BRANCH" == "master" ]; then echo "latest"; else echo $TRAVIS_BRANCH ; fi`
+  - docker build -f Dockerfile -t $REPO:$COMMIT .
+  - docker tag $REPO:$COMMIT $REPO:$TAG
+  - docker tag $REPO:$COMMIT $REPO:travis-$TRAVIS_BUILD_NUMBER
+  - docker push $REPO
+env:
+  global:
+  - TESSDATA_PREFIX=/usr/share/tesseract-ocr
+  - LC_NUMERIC=C
+  - secure: LRGpjWORb0qy6VuypZjTAfA8uRHlFUMTwb77cenS9PPRBxuSnctC531asS9Xg3DqC5nsRxBBprgfCKotn5S8nBSD1ceHh84NASyzLSBft3xSMbg7f/2i7MQ+pGVwLncusBU6E/drnMFwZBleo+9M8Tf96axY5zuUp90MUTpSgt0=
+  - secure: bCDDR6+I7PmSkuTYZv1HF/z98ANX/SFEESUCqxVmV5Gs0zFC0vQXaPJQ2xaJNRop1HZBFMZLeMMPleb0iOs985smpvK2F6Rbop9Tu+Vyo0uKqv9tbZ7F8Nfgnv9suHKZlL84FNeUQZJX6vsFIYPEJ/r7K5P/M0PdUy++fEwxEhU=
+  - secure: ewXnzbkgCIHpDWtaWGMa1OYZJ/ki99zcIl4jcDPIC0eB3njX/WgfcC6i0Ke9mLqDqwXarWJ6helm22sNh+xtQiz6isfBtBX+novfRt9AANrBe3koCMUemMDy7oh5VflBaFNP0DVb8LSCnwf6dx6ZB5E9EB8knvk40quc/cXpGjY=
+  - COMMIT=${TRAVIS_COMMIT::8}

Dockerfile

@@ -0,0 +1,11 @@
+FROM sismics/jetty:9.2.20-jdk7
+MAINTAINER b.gamard@sismics.com
+
+RUN apt-get update && apt-get -y -q install tesseract-ocr tesseract-ocr-fra tesseract-ocr-ita tesseract-ocr-kor tesseract-ocr-rus tesseract-ocr-ukr tesseract-ocr-spa tesseract-ocr-ara tesseract-ocr-hin tesseract-ocr-deu tesseract-ocr-pol tesseract-ocr-jpn tesseract-ocr-por tesseract-ocr-tha tesseract-ocr-jpn tesseract-ocr-chi-sim tesseract-ocr-chi-tra && \
+    apt-get clean && rm -rf /var/lib/apt/lists/*
+
+ENV TESSDATA_PREFIX /usr/share/tesseract-ocr
+ENV LC_NUMERIC C
+
+ADD docs.xml /opt/jetty/webapps/docs.xml
+ADD docs-web/target/docs-web-*.war /opt/jetty/webapps/docs.war

README.md

@@ -1,42 +1,77 @@
-Sismics Docs
-============
+<h3 align="center">
+  <img src="https://www.sismicsdocs.com/img/github-title.png" alt="Sismics Docs" width=500 />
+</h3>
 
-![](http://www.sismics.com/docs/img/docs.jpg)
+[![Twitter: @sismicsdocs](https://img.shields.io/badge/contact-@sismicsdocs-blue.svg?style=flat)](https://twitter.com/sismicsdocs)
+[![License: GPL v2](https://img.shields.io/badge/License-GPL%20v2-blue.svg)](https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html)
+[![Build Status](https://secure.travis-ci.org/sismics/docs.png)](http://travis-ci.org/sismics/docs)
 
-What is Docs?
----------------
+Docs is an open source, lightweight document management system for individuals and businesses.
 
-Docs is an open source, lightweight document management system.
+<hr />
+<h2 align="center">
+  ✨ We just launched a Cloud version of Sismics Docs! Head to <a href="https://www.sismicsdocs.com/">sismicsdocs.com</a> for more informations ✨
+</h2>
+<hr />
 
-Docs is written in Java, and may be run on any operating system with Java support.
+![New!](https://www.sismicsdocs.com/img/laptop-demo.png)
+
+Demo
+----
+
+A demo is available at [demo.sismicsdocs.com](https://demo.sismicsdocs.com)
+- Guest login is enabled with read access on all documents
+- "admin" login with "admin" password
+- "demo" login with "password" password 
 
 Features
 --------
 
 - Responsive user interface
-- Optical characted recognition
-- Support image and PDF files
+- Optical character recognition
+- Support image, PDF, ODT and DOCX files
 - Flexible search engine
-- Full text search in image and PDF
-- Tag system
-- Multi-users
-- Document sharing
+- Full text search in all supported files
+- All [Dublin Core](http://dublincore.org/) metadata
+- Workflow system ![New!](https://www.sismics.com/public/img/new.png)
+- 256-bit AES encryption of stored files
+- Tag system with nesting
+- Import document from email (EML format) ![New!](https://www.sismics.com/public/img/new.png)
+- Automatic inbox scanning and importing ![New!](https://www.sismics.com/public/img/new.png)
+- User/group permission system
+- 2-factor authentication
+- Hierarchical groups
+- Audit log
+- Comments
+- Storage quota per user
+- Document sharing by URL
 - RESTful Web API
+- Fully featured Android client
+- [Mass files importer](https://github.com/sismics/docs/tree/master/docs-importer) (single or scan mode) ![New!](https://www.sismics.com/public/img/new.png)
+- Tested to 100k documents
 
-License
--------
+Download
+--------
 
-Reader is released under the terms of the GPL license. See `COPYING` for more
-information or see <http://opensource.org/licenses/GPL-2.0>.
+The latest release is downloadable here: <https://github.com/sismics/docs/releases> in WAR format.
+You will need a Java webapp server to run it, like [Jetty](http://eclipse.org/jetty/) or [Tomcat](http://tomcat.apache.org/).
+The default admin password is "admin". Don't forget to change it before going to production.
+
+Install with Docker
+-------------------
+
+From a Docker host, run this command to download and install Sismics Docs. The server will run on <http://[your-docker-host-ip]:8100>.
+The default admin password is "admin". Don't forget to change it before going to production.
+
+    docker run --rm --name sismics_docs_latest -d -p 8100:8080 -v sismics_docs_latest:/data sismics/docs:latest
 
 How to build Docs from the sources
-------------------------------------
+----------------------------------
 
-Prerequisites: JDK 7, Maven 3
+Prerequisites: JDK 7 with JCE, Maven 3, Tesseract 3.02
 
 Docs is organized in several Maven modules:
 
-  - docs-parent
   - docs-core
   - docs-web
   - docs-web-common
@@ -46,7 +81,7 @@ or download the sources from GitHub.
 
 #### Launch the build
 
-From the `docs-parent` directory:
+From the root directory:
 
     mvn clean -DskipTests install
 
@@ -62,4 +97,10 @@ From the `docs-web` directory:
 
     mvn -Pprod -DskipTests clean install
 
-You will get your deployable WAR in the `target` directory.
+You will get your deployable WAR in the `docs-web/target` directory.
+
+License
+-------
+
+Docs is released under the terms of the GPL license. See `COPYING` for more
+information or see <http://opensource.org/licenses/GPL-2.0>.

docs-android/.gitignore

@@ -0,0 +1,4 @@
+.gradle
+/local.properties
+/.idea
+.DS_Store

docs-android/app/.gitignore

@@ -0,0 +1 @@
+/build

docs-android/app/build.gradle

@@ -0,0 +1,43 @@
+buildscript {
+    repositories {
+        jcenter()
+        google()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.0.1'
+    }
+}
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+    google()
+}
+
+android {
+    compileSdkVersion 26
+
+    defaultConfig {
+        minSdkVersion 14
+        targetSdkVersion 26
+        versionCode 1
+        versionName '1.0'
+    }
+
+    lintOptions {
+        abortOnError false
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: '*.jar')
+    compile 'com.android.support:appcompat-v7:26.1.0'
+    compile 'com.android.support:recyclerview-v7:26.1.0'
+    compile 'com.android.support:design:26.1.0'
+    compile 'it.sephiroth.android.library.imagezoom:imagezoom:1.0.5'
+    compile 'org.greenrobot:eventbus:3.0.0'
+    compile 'com.squareup.picasso:picasso:2.5.2'
+    compile 'com.squareup.okhttp3:okhttp:3.7.0'
+    compile 'com.squareup.okhttp3:okhttp-urlconnection:3.4.0'
+    compile 'com.jakewharton.picasso:picasso2-okhttp3-downloader:1.1.0'
+}

docs-android/app/proguard-rules.txt

@@ -0,0 +1,17 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /opt/android-studio/sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

docs-android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.sismics.docs"
+    android:installLocation="auto">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+
+    <application
+        android:name=".MainApplication"
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme" >
+        <activity
+            android:name=".activity.LoginActivity"
+            android:label="@string/app_name"
+            android:theme="@style/AppThemeDark">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".activity.MainActivity"
+            android:label="@string/app_name"
+            android:launchMode="singleTop"
+            android:windowSoftInputMode="adjustNothing">
+            <intent-filter>
+                <action android:name="android.intent.action.SEARCH" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.GET_CONTENT" />
+                <category android:name="android.intent.category.OPENABLE" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="*/*" />
+            </intent-filter>
+            <meta-data android:name="android.app.searchable" android:resource="@xml/searchable" />
+        </activity>
+        <activity
+            android:name=".activity.DocumentViewActivity"
+            android:label="">
+        </activity>
+        <activity
+            android:name=".activity.DocumentEditActivity"
+            android:label="@string/new_document">
+        </activity>
+        <activity
+            android:name=".activity.AuditLogActivity"
+            android:label="@string/latest_activity">
+        </activity>
+        <activity
+            android:name=".activity.UserProfileActivity">
+        </activity>
+        <activity
+            android:name=".activity.GroupProfileActivity">
+        </activity>
+        <activity
+            android:name=".activity.SettingsActivity"
+            android:label="@string/settings">
+        </activity>
+        <provider android:name=".provider.RecentSuggestionsProvider"
+            android:exported="false"
+            android:authorities="com.sismics.docs.provider.RecentSuggestionsProvider" />
+        <service
+            android:name=".service.FileUploadService"
+            android:enabled="true"
+            android:exported="false" >
+            <intent-filter>
+                <action android:name="com.sismics.docs.file.upload"/>
+            </intent-filter>
+        </service>
+    </application>
+
+</manifest>

docs-android/app/src/main/java/com/sismics/docs/MainApplication.java

@@ -0,0 +1,26 @@
+package com.sismics.docs;
+
+import android.app.Application;
+
+import com.sismics.docs.model.application.ApplicationContext;
+import com.sismics.docs.util.PreferenceUtil;
+
+import org.json.JSONObject;
+
+/**
+ * Main application.
+ * 
+ * @author bgamard
+ */
+public class MainApplication extends Application {
+    @Override
+    public void onCreate() {
+        // Fetching GET /user from cache
+        JSONObject json = PreferenceUtil.getCachedJson(getApplicationContext(), PreferenceUtil.PREF_CACHED_USER_INFO_JSON);
+        ApplicationContext.getInstance().setUserInfo(getApplicationContext(), json);
+
+        // TODO Provide documents to intent action get content
+
+        super.onCreate();
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/activity/AuditLogActivity.java

@@ -0,0 +1,121 @@
+package com.sismics.docs.activity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.widget.SwipeRefreshLayout;
+import android.support.v7.app.AppCompatActivity;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ListView;
+import android.widget.ProgressBar;
+
+import com.sismics.docs.R;
+import com.sismics.docs.adapter.AuditLogListAdapter;
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.model.application.ApplicationContext;
+import com.sismics.docs.resource.AuditLogResource;
+
+import org.json.JSONObject;
+
+/**
+ * Audit log activity.
+ *
+ * @author bgamard.
+ */
+public class AuditLogActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Check if logged in
+        if (!ApplicationContext.getInstance().isLoggedIn()) {
+            startActivity(new Intent(this, LoginActivity.class));
+            finish();
+            return;
+        }
+
+        // Handle activity context
+        if (getIntent() == null) {
+            finish();
+            return;
+        }
+
+        // Input document ID (optional)
+        final String documentId = getIntent().getStringExtra("documentId");
+
+        // Setup the activity
+        setContentView(R.layout.auditlog_activity);
+        if (getSupportActionBar() != null) {
+            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+            getSupportActionBar().setHomeButtonEnabled(true);
+        }
+
+        // Configure the swipe refresh layout
+        SwipeRefreshLayout swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
+        swipeRefreshLayout.setColorSchemeResources(android.R.color.holo_blue_bright,
+                android.R.color.holo_green_light,
+                android.R.color.holo_orange_light,
+                android.R.color.holo_red_light);
+        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
+            @Override
+            public void onRefresh() {
+                refreshView(documentId);
+            }
+        });
+
+        // Navigate to user profile on click
+        final ListView auditLogListView = (ListView) findViewById(R.id.auditLogListView);
+        auditLogListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+                if (auditLogListView.getAdapter() == null) {
+                    return;
+                }
+                AuditLogListAdapter adapter = (AuditLogListAdapter) auditLogListView.getAdapter();
+                String username = adapter.getItem(position).optString("username");
+                Intent intent = new Intent(AuditLogActivity.this, UserProfileActivity.class);
+                intent.putExtra("username", username);
+                startActivity(intent);
+            }
+        });
+
+        // Get audit log list
+        refreshView(documentId);
+    }
+
+    /**
+     * Refresh the view.
+     */
+    private void refreshView(String documentId) {
+        final SwipeRefreshLayout swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
+        final ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressBar);
+        final ListView auditLogListView = (ListView) findViewById(R.id.auditLogListView);
+        progressBar.setVisibility(View.VISIBLE);
+        auditLogListView.setVisibility(View.GONE);
+        AuditLogResource.list(this, documentId, new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject response) {
+                auditLogListView.setAdapter(new AuditLogListAdapter(response.optJSONArray("logs")));
+            }
+
+            @Override
+            public void onFinish() {
+                progressBar.setVisibility(View.GONE);
+                auditLogListView.setVisibility(View.VISIBLE);
+                swipeRefreshLayout.setRefreshing(false);
+            }
+        });
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                finish();
+                return true;
+        }
+
+        return super.onOptionsItemSelected(item);
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/activity/DocumentEditActivity.java

@@ -0,0 +1,231 @@
+package com.sismics.docs.activity;
+
+import android.app.ProgressDialog;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.widget.EditText;
+import android.widget.Spinner;
+import android.widget.Toast;
+
+import com.sismics.docs.R;
+import com.sismics.docs.adapter.LanguageAdapter;
+import com.sismics.docs.adapter.TagAutoCompleteAdapter;
+import com.sismics.docs.event.DocumentAddEvent;
+import com.sismics.docs.event.DocumentEditEvent;
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.resource.DocumentResource;
+import com.sismics.docs.ui.form.Validator;
+import com.sismics.docs.ui.form.validator.Required;
+import com.sismics.docs.ui.view.DatePickerView;
+import com.sismics.docs.ui.view.TagsCompleteTextView;
+import com.sismics.docs.util.PreferenceUtil;
+
+import org.greenrobot.eventbus.EventBus;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * Document edition activity.
+ *
+ * @author bgamard.
+ */
+public class DocumentEditActivity extends AppCompatActivity {
+    /**
+     * Document edited.
+     */
+    private JSONObject document;
+
+    /**
+     * Form validator.
+     */
+    private Validator validator;
+
+    // View cache
+    private EditText titleEditText;
+    private EditText descriptionEditText;
+    private TagsCompleteTextView tagsEditText;
+    private Spinner languageSpinner;
+    private DatePickerView datePickerView;
+
+    @Override
+    protected void onCreate(Bundle args) {
+        super.onCreate(args);
+
+        // Handle activity context
+        if (getIntent() == null) {
+            finish();
+            return;
+        }
+
+        // Parse input document
+        String documentJson = getIntent().getStringExtra("document");
+        if (documentJson != null) {
+            try {
+                document = new JSONObject(documentJson);
+            } catch (JSONException e) {
+                finish();
+                return;
+            }
+        }
+
+        // Setup the activity
+        setContentView(R.layout.document_edit_activity);
+        if (getSupportActionBar() != null) {
+            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+            getSupportActionBar().setHomeButtonEnabled(true);
+        }
+        languageSpinner = (Spinner) findViewById(R.id.languageSpinner);
+        tagsEditText = (TagsCompleteTextView) findViewById(R.id.tagsEditText);
+        datePickerView = (DatePickerView) findViewById(R.id.dateEditText);
+        titleEditText = (EditText) findViewById(R.id.titleEditText);
+        descriptionEditText = (EditText) findViewById(R.id.descriptionEditText);
+
+        // Language spinner
+        LanguageAdapter languageAdapter = new LanguageAdapter(this, false);
+        languageSpinner.setAdapter(languageAdapter);
+
+        // Tags auto-complete
+        JSONObject tags = PreferenceUtil.getCachedJson(this, PreferenceUtil.PREF_CACHED_TAGS_JSON);
+        if (tags == null) {
+            finish();
+            return;
+        }
+        JSONArray tagArray = tags.optJSONArray("tags");
+
+        List<JSONObject> tagList = new ArrayList<>();
+        for (int i = 0; i < tagArray.length(); i++) {
+            tagList.add(tagArray.optJSONObject(i));
+        }
+
+        tagsEditText.allowDuplicates(false);
+        tagsEditText.setAdapter(new TagAutoCompleteAdapter(this, 0, tagList));
+
+        // Validation
+        validator = new Validator(this, true);
+        validator.addValidable(titleEditText, new Required());
+
+        // Fill the activity
+        if (document == null) {
+            datePickerView.setDate(new Date());
+        } else {
+            setTitle(R.string.edit_document);
+            titleEditText.setText(document.optString("title"));
+            descriptionEditText.setText(document.isNull("description") ? "" : document.optString("description"));
+            datePickerView.setDate(new Date(document.optLong("create_date")));
+            languageSpinner.setSelection(languageAdapter.getItemPosition(document.optString("language")));
+            JSONArray documentTags = document.optJSONArray("tags");
+            for (int i = 0; i < documentTags.length(); i++) {
+                tagsEditText.addObject(documentTags.optJSONObject(i));
+            }
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.document_edit_activity, menu);
+        return super.onCreateOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.save:
+                validator.validate();
+                if (!validator.isValidated()) {
+                    return true;
+                }
+
+                // Metadata
+                final String title = titleEditText.getText().toString();
+                final String description = descriptionEditText.getText().toString();
+                LanguageAdapter.Language language = (LanguageAdapter.Language) languageSpinner.getSelectedItem();
+                final String langId = language.getId();
+                final long createDate = datePickerView.getDate().getTime();
+                Set<String> tagIdList = new HashSet<>();
+                for (Object object : tagsEditText.getObjects()) {
+                    JSONObject tag = (JSONObject) object;
+                    tagIdList.add(tag.optString("id"));
+                }
+
+                // Cancellable progress dialog
+                final ProgressDialog progressDialog = ProgressDialog.show(this,
+                        getString(R.string.please_wait),
+                        getString(R.string.document_editing_message), true, true);
+
+                // Server callback
+                HttpCallback callback = new HttpCallback() {
+                    @Override
+                    public void onSuccess(JSONObject response) {
+                        // Build a fake document JSON to update the UI
+                        final JSONObject outputDoc = new JSONObject();
+                        try {
+                            if (document == null) {
+                                outputDoc.putOpt("id", response.optString("id"));
+                                outputDoc.putOpt("shared", false);
+                            } else {
+                                outputDoc.putOpt("id", document.optString("id"));
+                                outputDoc.putOpt("shared", document.optBoolean("shared"));
+                            }
+                            outputDoc.putOpt("title", title);
+                            outputDoc.putOpt("description", description);
+                            outputDoc.putOpt("language", langId);
+                            outputDoc.putOpt("create_date", createDate);
+                            JSONArray tags = new JSONArray();
+                            for (Object object : tagsEditText.getObjects()) {
+                                tags.put(object);
+                            }
+                            outputDoc.putOpt("tags", tags);
+                        } catch (JSONException e) {
+                            Log.e(DocumentEditActivity.class.getSimpleName(), "Error building JSON for document", e);
+                        }
+
+                        // Fire the right event
+                        if (document == null) {
+                            EventBus.getDefault().post(new DocumentAddEvent(outputDoc));
+                        } else {
+                            EventBus.getDefault().post(new DocumentEditEvent(outputDoc));
+                        }
+                        setResult(RESULT_OK);
+                        finish();
+                    }
+
+                    @Override
+                    public void onFailure(JSONObject json, Exception e) {
+                        Toast.makeText(DocumentEditActivity.this, R.string.error_editing_document, Toast.LENGTH_LONG).show();
+                    }
+
+                    @Override
+                    public void onFinish() {
+                        progressDialog.dismiss();
+                    }
+                };
+
+                // Actual server call
+                if (document == null) {
+                    DocumentResource.add(this, title, description, tagIdList, langId, createDate, callback);
+                } else {
+                    DocumentResource.edit(this, document.optString("id"), title, description, tagIdList, langId, createDate, callback);
+                }
+                return true;
+
+            case android.R.id.home:
+                finish();
+                return true;
+
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/activity/DocumentViewActivity.java

@@ -0,0 +1,853 @@
+package com.sismics.docs.activity;
+
+import android.app.AlertDialog;
+import android.app.ProgressDialog;
+import android.content.ClipData;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+import android.support.v4.view.GravityCompat;
+import android.support.v4.view.ViewPager;
+import android.support.v4.widget.DrawerLayout;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+import android.text.TextUtils;
+import android.text.format.DateFormat;
+import android.text.method.LinkMovementMethod;
+import android.view.ContextMenu;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ImageButton;
+import android.widget.ImageView;
+import android.widget.ListView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.sismics.docs.R;
+import com.sismics.docs.adapter.AclListAdapter;
+import com.sismics.docs.adapter.CommentListAdapter;
+import com.sismics.docs.adapter.FilePagerAdapter;
+import com.sismics.docs.event.CommentAddEvent;
+import com.sismics.docs.event.CommentDeleteEvent;
+import com.sismics.docs.event.DocumentDeleteEvent;
+import com.sismics.docs.event.DocumentEditEvent;
+import com.sismics.docs.event.DocumentFullscreenEvent;
+import com.sismics.docs.event.FileAddEvent;
+import com.sismics.docs.event.FileDeleteEvent;
+import com.sismics.docs.fragment.DocExportPdfFragment;
+import com.sismics.docs.fragment.DocShareFragment;
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.model.application.ApplicationContext;
+import com.sismics.docs.resource.CommentResource;
+import com.sismics.docs.resource.DocumentResource;
+import com.sismics.docs.resource.FileResource;
+import com.sismics.docs.service.FileUploadService;
+import com.sismics.docs.util.NetworkUtil;
+import com.sismics.docs.util.PreferenceUtil;
+import com.sismics.docs.util.SpannableUtil;
+
+import org.greenrobot.eventbus.EventBus;
+import org.greenrobot.eventbus.Subscribe;
+import org.greenrobot.eventbus.ThreadMode;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * Document activity.
+ * 
+ * @author bgamard
+ */
+public class DocumentViewActivity extends AppCompatActivity {
+    /**
+     * Request code of adding file.
+     */
+    public static final int REQUEST_CODE_ADD_FILE = 1;
+
+    /**
+     * File view pager.
+     */
+    private ViewPager fileViewPager;
+
+    /**
+     * File pager adapter.
+     */
+    private FilePagerAdapter filePagerAdapter;
+
+    /**
+     * Comment list adapter.
+     */
+    private CommentListAdapter commentListAdapter;
+
+    /**
+     * Document displayed.
+     */
+    private JSONObject document;
+
+    /**
+     * Menu.
+     */
+    private Menu menu;
+
+    @Override
+    protected void onCreate(final Bundle args) {
+        super.onCreate(args);
+
+        // Check if logged in
+        if (!ApplicationContext.getInstance().isLoggedIn()) {
+            startActivity(new Intent(this, LoginActivity.class));
+            finish();
+            return;
+        }
+
+        // Handle activity context
+        if (getIntent() == null) {
+            finish();
+            return;
+        }
+
+        // Parse input document
+        String documentJson = getIntent().getStringExtra("document");
+        if (documentJson == null) {
+            finish();
+            return;
+        }
+
+        try {
+            document = new JSONObject(documentJson);
+        } catch (JSONException e) {
+            finish();
+            return;
+        }
+
+        // Setup the activity
+        setContentView(R.layout.document_view_activity);
+        if (getSupportActionBar() != null) {
+            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+            getSupportActionBar().setHomeButtonEnabled(true);
+        }
+
+        // Fill the view
+        refreshDocument(document);
+
+        EventBus.getDefault().register(this);
+    }
+
+    /**
+     * Refresh the displayed document.
+     *
+     * @param document Document in JSON format
+     */
+    private void refreshDocument(final JSONObject document) {
+        this.document = document;
+
+        String title = document.optString("title");
+        String date = DateFormat.getDateFormat(this).format(new Date(document.optLong("create_date")));
+        String description = document.optString("description");
+        boolean shared = document.optBoolean("shared");
+        String language = document.optString("language");
+        JSONArray tags = document.optJSONArray("tags");
+
+        // Setup the title
+        setTitle(title);
+        Toolbar toolbar = (Toolbar) findViewById(R.id.action_bar);
+        TextView titleTextView = (TextView) toolbar.getChildAt(1);
+        if (titleTextView != null) {
+            titleTextView.setEllipsize(TextUtils.TruncateAt.MARQUEE);
+            titleTextView.setMarqueeRepeatLimit(-1);
+            titleTextView.setFocusable(true);
+            titleTextView.setFocusableInTouchMode(true);
+        }
+
+        // Fill the layout
+        // Create date
+        TextView createdDateTextView = (TextView) findViewById(R.id.createdDateTextView);
+        createdDateTextView.setText(date);
+
+        // Description
+        TextView descriptionTextView = (TextView) findViewById(R.id.descriptionTextView);
+        if (description.isEmpty() || document.isNull("description")) {
+            descriptionTextView.setVisibility(View.GONE);
+        } else {
+            descriptionTextView.setVisibility(View.VISIBLE);
+            descriptionTextView.setText(description);
+        }
+
+        // Tags
+        TextView tagTextView = (TextView) findViewById(R.id.tagTextView);
+        if (tags.length() == 0) {
+            tagTextView.setVisibility(View.GONE);
+        } else {
+            tagTextView.setVisibility(View.VISIBLE);
+            tagTextView.setText(SpannableUtil.buildSpannableTags(tags));
+        }
+
+        // Language
+        ImageView languageImageView = (ImageView) findViewById(R.id.languageImageView);
+        languageImageView.setImageResource(getResources().getIdentifier(language, "drawable", getPackageName()));
+
+        // Shared status
+        ImageView sharedImageView = (ImageView) findViewById(R.id.sharedImageView);
+        sharedImageView.setVisibility(shared ? View.VISIBLE : View.GONE);
+
+        // Action edit document
+        Button button = (Button) findViewById(R.id.actionEditDocument);
+        button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent intent = new Intent(DocumentViewActivity.this, DocumentEditActivity.class);
+                intent.putExtra("document", DocumentViewActivity.this.document.toString());
+                startActivity(intent);
+            }
+        });
+
+        // Action upload file
+        button = (Button) findViewById(R.id.actionUploadFile);
+        button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent intent = new Intent(Intent.ACTION_GET_CONTENT)
+                        .setType("*/*")
+                        .putExtra("android.intent.extra.ALLOW_MULTIPLE", true)
+                        .addCategory(Intent.CATEGORY_OPENABLE);
+                startActivityForResult(Intent.createChooser(intent, getText(R.string.upload_from)), REQUEST_CODE_ADD_FILE);
+            }
+        });
+
+        // Action download document
+        button = (Button) findViewById(R.id.actionDownload);
+        button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                downloadZip();
+            }
+        });
+
+        // Action delete document
+        button = (Button) findViewById(R.id.actionDelete);
+        button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                deleteDocument();
+            }
+        });
+
+        // Action export PDF
+        button = (Button) findViewById(R.id.actionExportPdf);
+        button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                DialogFragment dialog = DocExportPdfFragment.newInstance(
+                        document.optString("id"), document.optString("title"));
+                dialog.show(getSupportFragmentManager(), "DocExportPdfFragment");
+            }
+        });
+
+        // Action share
+        button = (Button) findViewById(R.id.actionSharing);
+        button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                DialogFragment dialog = DocShareFragment.newInstance(document.optString("id"));
+                dialog.show(getSupportFragmentManager(), "DocShareFragment");
+            }
+        });
+
+        // Action audit log
+        button = (Button) findViewById(R.id.actionAuditLog);
+        button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent intent = new Intent(DocumentViewActivity.this, AuditLogActivity.class);
+                intent.putExtra("documentId", document.optString("id"));
+                startActivity(intent);
+            }
+        });
+
+        // Button add a comment
+        ImageButton imageButton = (ImageButton) findViewById(R.id.addCommentBtn);
+        imageButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                final EditText commentEditText = (EditText) findViewById(R.id.commentEditText);
+                if (commentEditText.getText().length() == 0) {
+                    // No content for the new comment
+                    return;
+                }
+
+                Toast.makeText(DocumentViewActivity.this, R.string.adding_comment, Toast.LENGTH_LONG).show();
+
+                CommentResource.add(DocumentViewActivity.this,
+                        DocumentViewActivity.this.document.optString("id"),
+                        commentEditText.getText().toString(),
+                        new HttpCallback() {
+                    public void onSuccess(JSONObject response) {
+                        EventBus.getDefault().post(new CommentAddEvent(response));
+                        commentEditText.setText("");
+                    }
+
+                    @Override
+                    public void onFailure(JSONObject json, Exception e) {
+                        Toast.makeText(DocumentViewActivity.this, R.string.comment_add_failure, Toast.LENGTH_LONG).show();
+                    }
+                });
+            }
+        });
+
+        // Grab the comments
+        updateComments();
+
+        // Grab the attached files
+        updateFiles();
+
+        // Grab the full document (used for ACLs, remaining metadata and writable status)
+        updateDocument();
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(final Menu menu) {
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.document_view_activity, menu);
+        this.menu = menu;
+        return super.onCreateOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.info:
+                DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
+                if (drawerLayout.isDrawerVisible(GravityCompat.END)) {
+                    drawerLayout.closeDrawer(GravityCompat.END);
+                } else {
+                    drawerLayout.openDrawer(GravityCompat.END);
+                }
+                return true;
+
+            case R.id.comments:
+                drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
+                if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
+                    drawerLayout.closeDrawer(GravityCompat.START);
+                } else {
+                    drawerLayout.openDrawer(GravityCompat.START);
+                }
+                return true;
+
+            case R.id.download_file:
+                downloadCurrentFile();
+                return true;
+
+            case R.id.delete_file:
+                deleteCurrentFile();
+                return true;
+
+            case android.R.id.home:
+                finish();
+                return true;
+
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
+
+    /**
+     * Download the current displayed file.
+     */
+    private void downloadCurrentFile() {
+        if (fileViewPager == null || filePagerAdapter == null) return;
+
+        JSONObject file = filePagerAdapter.getObjectAt(fileViewPager.getCurrentItem());
+        if (file == null) return;
+
+        // Build the destination filename
+        String mimeType = file.optString("mimetype");
+        int position = fileViewPager.getCurrentItem();
+        if (mimeType == null || !mimeType.contains("/")) return;
+        String ext = mimeType.split("/")[1];
+        String fileName = document.optString("title") + "-" + position + "." + ext;
+
+        // Download the file
+        String fileUrl = PreferenceUtil.getServerUrl(this) + "/api/file/" + file.optString("id") + "/data";
+        NetworkUtil.downloadFile(this, fileUrl, fileName, document.optString("title"), getString(R.string.download_file_title));
+    }
+
+    private void deleteCurrentFile() {
+        if (fileViewPager == null || filePagerAdapter == null) return;
+
+        final JSONObject file = filePagerAdapter.getObjectAt(fileViewPager.getCurrentItem());
+        if (file == null) return;
+
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+
+        builder.setTitle(R.string.delete_file_title)
+                .setMessage(R.string.delete_file_message)
+                .setCancelable(true)
+                .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        // Dismiss the confirmation dialog
+                        dialog.dismiss();
+
+                        // Show a progress dialog while deleting
+                        final ProgressDialog progressDialog = ProgressDialog.show(DocumentViewActivity.this,
+                                getString(R.string.please_wait),
+                                getString(R.string.file_deleting_message), true, true);
+
+                        // Actual delete server call
+                        final String fileId = file.optString("id");
+                        FileResource.delete(DocumentViewActivity.this, fileId, new HttpCallback() {
+                            @Override
+                            public void onSuccess(JSONObject response) {
+                                EventBus.getDefault().post(new FileDeleteEvent(fileId));
+                            }
+
+                            @Override
+                            public void onFailure(JSONObject json, Exception e) {
+                                Toast.makeText(DocumentViewActivity.this, R.string.file_delete_failure, Toast.LENGTH_LONG).show();
+                            }
+
+                            @Override
+                            public void onFinish() {
+                                progressDialog.dismiss();
+                            }
+                        });
+                    }
+                })
+                .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        dialog.dismiss();
+                    }
+                }).create().show();
+    }
+
+    /**
+     * Download the document (all files zipped).
+     */
+    private void downloadZip() {
+        if (document == null) return;
+        String url = PreferenceUtil.getServerUrl(this) + "/api/file/zip?id=" + document.optString("id");
+        String fileName = document.optString("title") + ".zip";
+        NetworkUtil.downloadFile(this, url, fileName, document.optString("title"), getString(R.string.download_document_title));
+    }
+
+    /**
+     * Delete the current document.
+     */
+    private void deleteDocument() {
+        if (document == null) return;
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+
+        builder.setTitle(R.string.delete_document_title)
+                .setMessage(R.string.delete_document_message)
+                .setCancelable(true)
+                .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        // Dismiss the confirmation dialog
+                        dialog.dismiss();
+
+                        // Show a progress dialog while deleting
+                        final ProgressDialog progressDialog = ProgressDialog.show(DocumentViewActivity.this,
+                                getString(R.string.please_wait),
+                                getString(R.string.document_deleting_message), true, true);
+
+                        // Actual delete server call
+                        final String documentId = document.optString("id");
+                        DocumentResource.delete(DocumentViewActivity.this, documentId, new HttpCallback() {
+                            @Override
+                            public void onSuccess(JSONObject response) {
+                                EventBus.getDefault().post(new DocumentDeleteEvent(documentId));
+                            }
+
+                            @Override
+                            public void onFailure(JSONObject json, Exception e) {
+                                Toast.makeText(DocumentViewActivity.this, R.string.document_delete_failure, Toast.LENGTH_LONG).show();
+                            }
+
+                            @Override
+                            public void onFinish() {
+                                progressDialog.dismiss();
+                            }
+                        });
+                    }
+                })
+                .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        dialog.dismiss();
+                    }
+                }).create().show();
+
+    }
+
+    /**
+     * A document fullscreen event has been fired.
+     *
+     * @param event Document fullscreen event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(DocumentFullscreenEvent event) {
+        findViewById(R.id.detailLayout).setVisibility(event.isFullscreen() ? View.GONE : View.VISIBLE);
+    }
+
+    /**
+     * A document edit event has been fired.
+     *
+     * @param event Document edit event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(DocumentEditEvent event) {
+        if (document == null) return;
+        if (event.getDocument().optString("id").equals(document.optString("id"))) {
+            // The current document has been modified, refresh it
+            refreshDocument(event.getDocument());
+        }
+    }
+
+    /**
+     * A document delete event has been fired.
+     *
+     * @param event Document delete event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(DocumentDeleteEvent event) {
+        if (document == null) return;
+        if (event.getDocumentId().equals(document.optString("id"))) {
+            // The current document has been deleted, close this activity
+            finish();
+        }
+    }
+
+    /**
+     * A file delete event has been fired.
+     *
+     * @param event File delete event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(FileDeleteEvent event) {
+        if (filePagerAdapter == null) return;
+        filePagerAdapter.remove(event.getFileId());
+        final TextView filesEmptyView = (TextView) findViewById(R.id.filesEmptyView);
+        if (filePagerAdapter.getCount() == 0) filesEmptyView.setVisibility(View.VISIBLE);
+    }
+
+    /**
+     * A file add event has been fired.
+     *
+     * @param event File add event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(FileAddEvent event) {
+        if (document == null) return;
+        if (document.optString("id").equals(event.getDocumentId())) {
+            updateFiles();
+        }
+    }
+
+    /**
+     * A comment add event has been fired.
+     *
+     * @param event Comment add event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(CommentAddEvent event) {
+        if (commentListAdapter == null) return;
+        TextView emptyView = (TextView) findViewById(R.id.commentEmptyView);
+        ListView listView = (ListView) findViewById(R.id.commentListView);
+        emptyView.setVisibility(View.GONE);
+        listView.setVisibility(View.VISIBLE);
+        commentListAdapter.add(event.getComment());
+    }
+
+    /**
+     * A comment delete event has been fired.
+     *
+     * @param event Comment add event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(CommentDeleteEvent event) {
+        if (commentListAdapter == null) return;
+        TextView emptyView = (TextView) findViewById(R.id.commentEmptyView);
+        ListView listView = (ListView) findViewById(R.id.commentListView);
+        commentListAdapter.remove(event.getCommentId());
+        if (commentListAdapter.getCount() == 0) {
+            emptyView.setVisibility(View.VISIBLE);
+            listView.setVisibility(View.GONE);
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (document == null) return;
+
+        if (requestCode == REQUEST_CODE_ADD_FILE && resultCode == RESULT_OK) {
+            List<Uri> uriList = new ArrayList<>();
+            // Single file upload
+            if (data.getData() != null) {
+                uriList.add(data.getData());
+            }
+
+            // Handle multiple file upload
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
+                ClipData clipData = data.getClipData();
+                if (clipData != null) {
+                    for (int i = 0; i < clipData.getItemCount(); ++i) {
+                        Uri uri = clipData.getItemAt(i).getUri();
+                        if (uri != null) {
+                            uriList.add(uri);
+                        }
+                    }
+                }
+            }
+
+            // Upload all files
+            for (Uri uri : uriList) {
+                Intent intent = new Intent(this, FileUploadService.class)
+                        .putExtra(FileUploadService.PARAM_URI, uri)
+                        .putExtra(FileUploadService.PARAM_DOCUMENT_ID, document.optString("id"));
+                startService(intent);
+            }
+        }
+    }
+
+    /**
+     * Update the document model.
+     */
+    private void updateDocument() {
+        if (document == null) return;
+
+        // Silently get the document to know if it is writable by the current user
+        // If this call fails or is slow and the document is read-only,
+        // write actions will be allowed and will fail
+        DocumentResource.get(this, document.optString("id"), new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject response) {
+                document = response;
+                boolean writable = document.optBoolean("writable");
+
+                if (menu != null) {
+                    menu.findItem(R.id.delete_file).setVisible(writable);
+                }
+
+                // Action only available if the document is writable
+                findViewById(R.id.actionEditDocument).setVisibility(writable ? View.VISIBLE : View.GONE);
+                findViewById(R.id.actionUploadFile).setVisibility(writable ? View.VISIBLE : View.GONE);
+                findViewById(R.id.actionSharing).setVisibility(writable ? View.VISIBLE : View.GONE);
+                findViewById(R.id.actionDelete).setVisibility(writable ? View.VISIBLE : View.GONE);
+
+                // ACLs
+                ListView aclListView = (ListView) findViewById(R.id.aclListView);
+                final AclListAdapter aclListAdapter = new AclListAdapter(document.optJSONArray("acls"));
+                aclListView.setAdapter(aclListAdapter);
+                aclListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+                    @Override
+                    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+                        AclListAdapter.AclItem acl = aclListAdapter.getItem(position);
+                        if (acl.getType().equals("USER")) {
+                            Intent intent = new Intent(DocumentViewActivity.this, UserProfileActivity.class);
+                            intent.putExtra("username", acl.getName());
+                            startActivity(intent);
+                        } else if (acl.getType().equals("GROUP")) {
+                            Intent intent = new Intent(DocumentViewActivity.this, GroupProfileActivity.class);
+                            intent.putExtra("name", acl.getName());
+                            startActivity(intent);
+                        }
+                    }
+                });
+
+                // Remaining metadata
+                TextView creatorTextView = (TextView) findViewById(R.id.creatorTextView);
+                final String creator = document.optString("creator");
+                creatorTextView.setText(creator);
+                creatorTextView.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        Intent intent = new Intent(DocumentViewActivity.this, UserProfileActivity.class);
+                        intent.putExtra("username", creator);
+                        startActivity(intent);
+                    }
+                });
+
+                // Contributors
+                TextView contributorsTextView = (TextView) findViewById(R.id.contributorsTextView);
+                contributorsTextView.setText(SpannableUtil.buildSpannableContributors(document.optJSONArray("contributors")));
+
+                // Relations
+                JSONArray relations = document.optJSONArray("relations");
+                if (relations.length() > 0) {
+                    TextView relationsTextView = (TextView) findViewById(R.id.relationsTextView);
+                    relationsTextView.setMovementMethod(LinkMovementMethod.getInstance());
+                    relationsTextView.setText(SpannableUtil.buildSpannableRelations(relations));
+                } else {
+                    findViewById(R.id.relationsLayout).setVisibility(View.GONE);
+                }
+
+                // Additional dublincore metadata
+                displayDublincoreMetadata(R.id.subjectTextView, R.id.subjectLayout, "subject");
+                displayDublincoreMetadata(R.id.identifierTextView, R.id.identifierLayout, "identifier");
+                displayDublincoreMetadata(R.id.publisherTextView, R.id.publisherLayout, "publisher");
+                displayDublincoreMetadata(R.id.formatTextView, R.id.formatLayout, "format");
+                displayDublincoreMetadata(R.id.sourceTextView, R.id.sourceLayout, "source");
+                displayDublincoreMetadata(R.id.typeTextView, R.id.typeLayout, "type");
+                displayDublincoreMetadata(R.id.coverageTextView, R.id.coverageLayout, "coverage");
+                displayDublincoreMetadata(R.id.rightsTextView, R.id.rightsLayout, "rights");
+            }
+        });
+    }
+
+    /**
+     * Display a dublincore metadata.
+     *
+     * @param textViewId TextView ID
+     * @param blockViewId View ID
+     * @param name Name
+     */
+    private void displayDublincoreMetadata(int textViewId, int blockViewId, String name) {
+        if (document == null) return;
+        String value = document.optString(name);
+        if (document.isNull(name) || value.isEmpty()) {
+            findViewById(blockViewId).setVisibility(View.GONE);
+            return;
+        }
+
+        findViewById(blockViewId).setVisibility(View.VISIBLE);
+        TextView textView = (TextView) findViewById(textViewId);
+        textView.setText(value);
+    }
+
+    @Override
+    public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
+        switch (view.getId()) {
+            case R.id.commentListView:
+                if (commentListAdapter == null || document == null) return;
+                AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
+                JSONObject comment = commentListAdapter.getItem(info.position);
+                boolean writable = document.optBoolean("writable");
+                String creator = comment.optString("creator");
+                String username = ApplicationContext.getInstance().getUserInfo().optString("username");
+                if (writable || creator.equals(username)) {
+                    menu.add(Menu.NONE, 0, 0, getString(R.string.comment_delete));
+                }
+        }
+    }
+
+    @Override
+    public boolean onContextItemSelected(MenuItem item) {
+        // Use real ids if more than one item someday
+        if (item.getItemId() == 0) {
+            // Delete a comment
+            AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)item.getMenuInfo();
+            if (commentListAdapter == null) return false;
+            JSONObject comment = commentListAdapter.getItem(info.position);
+            final String commentId = comment.optString("id");
+            Toast.makeText(DocumentViewActivity.this, R.string.deleting_comment, Toast.LENGTH_LONG).show();
+
+            CommentResource.remove(DocumentViewActivity.this, commentId, new HttpCallback() {
+                @Override
+                public void onSuccess(JSONObject response) {
+                    EventBus.getDefault().post(new CommentDeleteEvent(commentId));
+                }
+
+                @Override
+                public void onFailure(JSONObject json, Exception e) {
+                    Toast.makeText(DocumentViewActivity.this, R.string.error_deleting_comment, Toast.LENGTH_LONG).show();
+                }
+            });
+
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Refresh comments list.
+     */
+    private void updateComments() {
+        if (document == null) return;
+
+        final View progressBar = findViewById(R.id.commentProgressView);
+        final TextView emptyView = (TextView) findViewById(R.id.commentEmptyView);
+        final ListView listView = (ListView) findViewById(R.id.commentListView);
+        progressBar.setVisibility(View.VISIBLE);
+        emptyView.setVisibility(View.GONE);
+        listView.setVisibility(View.GONE);
+        registerForContextMenu(listView);
+
+        CommentResource.list(this, document.optString("id"), new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject response) {
+                JSONArray comments = response.optJSONArray("comments");
+                commentListAdapter = new CommentListAdapter(DocumentViewActivity.this, comments);
+                listView.setAdapter(commentListAdapter);
+                listView.setVisibility(View.VISIBLE);
+                progressBar.setVisibility(View.GONE);
+                if (comments.length() == 0) {
+                    listView.setVisibility(View.GONE);
+                    emptyView.setVisibility(View.VISIBLE);
+                }
+            }
+
+            @Override
+            public void onFailure(JSONObject json, Exception e) {
+                emptyView.setText(R.string.error_loading_comments);
+                progressBar.setVisibility(View.GONE);
+                listView.setVisibility(View.GONE);
+                emptyView.setVisibility(View.VISIBLE);
+            }
+        });
+    }
+
+    /**
+     * Refresh files list.
+     */
+    private void updateFiles() {
+        if (document == null) return;
+
+        final View progressBar = findViewById(R.id.progressBar);
+        final TextView filesEmptyView = (TextView) findViewById(R.id.filesEmptyView);
+        fileViewPager = (ViewPager) findViewById(R.id.fileViewPager);
+        fileViewPager.setOffscreenPageLimit(1);
+        fileViewPager.setAdapter(null);
+        progressBar.setVisibility(View.VISIBLE);
+        filesEmptyView.setVisibility(View.GONE);
+
+        FileResource.list(this, document.optString("id"), new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject response) {
+                JSONArray files = response.optJSONArray("files");
+                filePagerAdapter = new FilePagerAdapter(DocumentViewActivity.this, files);
+                fileViewPager.setAdapter(filePagerAdapter);
+
+                progressBar.setVisibility(View.GONE);
+                if (files.length() == 0) filesEmptyView.setVisibility(View.VISIBLE);
+            }
+
+            @Override
+            public void onFailure(JSONObject json, Exception e) {
+                filesEmptyView.setText(R.string.error_loading_files);
+                progressBar.setVisibility(View.GONE);
+                filesEmptyView.setVisibility(View.VISIBLE);
+            }
+        });
+    }
+
+    @Override
+    protected void onDestroy() {
+        EventBus.getDefault().unregister(this);
+        super.onDestroy();
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/activity/GroupProfileActivity.java

@@ -0,0 +1,92 @@
+package com.sismics.docs.activity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.model.application.ApplicationContext;
+import com.sismics.docs.resource.UserResource;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+/**
+ * Group profile activity.
+ *
+ * @author bgamard.
+ */
+public class GroupProfileActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Check if logged in
+        if (!ApplicationContext.getInstance().isLoggedIn()) {
+            startActivity(new Intent(this, LoginActivity.class));
+            finish();
+            return;
+        }
+
+        // Handle activity context
+        if (getIntent() == null) {
+            finish();
+            return;
+        }
+
+        // Input name
+        final String name = getIntent().getStringExtra("name");
+        if (name == null) {
+            finish();
+            return;
+        }
+
+        // Setup the activity
+        setTitle(name);
+        setContentView(R.layout.groupprofile_activity);
+        if (getSupportActionBar() != null) {
+            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+            getSupportActionBar().setHomeButtonEnabled(true);
+        }
+
+        // Get the group and populate the view
+        final ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressBar);
+        final View layoutView = findViewById(R.id.layout);
+        progressBar.setVisibility(View.VISIBLE);
+        layoutView.setVisibility(View.GONE);
+        UserResource.get(this, name, new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject json) {
+                TextView membersTextView = (TextView) findViewById(R.id.membersTextView);
+                JSONArray members = json.optJSONArray("members");
+                String output = "";
+                for (int i = 0; i < members.length(); i++) {
+                    output += members.optString(i) + "; ";
+                }
+                membersTextView.setText(output);
+            }
+
+            @Override
+            public void onFinish() {
+                progressBar.setVisibility(View.GONE);
+                layoutView.setVisibility(View.VISIBLE);
+            }
+        });
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                finish();
+                return true;
+        }
+
+        return super.onOptionsItemSelected(item);
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/activity/LoginActivity.java

@@ -0,0 +1,187 @@
+package com.sismics.docs.activity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.support.v7.app.AppCompatActivity;
+import android.text.Html;
+import android.text.method.LinkMovementMethod;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+import com.sismics.docs.listener.CallbackListener;
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.model.application.ApplicationContext;
+import com.sismics.docs.resource.UserResource;
+import com.sismics.docs.ui.form.Validator;
+import com.sismics.docs.ui.form.validator.Required;
+import com.sismics.docs.util.DialogUtil;
+import com.sismics.docs.util.PreferenceUtil;
+
+import org.json.JSONObject;
+
+/**
+ * Login activity.
+ * 
+ * @author bgamard
+ */
+public class LoginActivity extends AppCompatActivity {
+    /**
+     * User interface.
+     */
+    private View loginForm;
+    private View progressBar;
+    
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.login_activity);
+
+        TextView loginExplainTextView = (TextView) findViewById(R.id.loginExplain);
+        loginExplainTextView.setText(Html.fromHtml(getString(R.string.login_explain)));
+        loginExplainTextView.setMovementMethod(LinkMovementMethod.getInstance());
+
+        final EditText txtServer = (EditText) findViewById(R.id.txtServer);
+        final EditText txtUsername = (EditText) findViewById(R.id.txtUsername);
+        final EditText txtPassword = (EditText) findViewById(R.id.txtPassword);
+        final EditText txtValidationCode = (EditText) findViewById(R.id.txtValidationCode);
+        final Button btnConnect = (Button) findViewById(R.id.btnConnect);
+        loginForm = findViewById(R.id.loginForm);
+        progressBar = findViewById(R.id.progressBar);
+        
+        PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
+        
+        loginForm.setVisibility(View.GONE);
+        progressBar.setVisibility(View.VISIBLE);
+        
+        // Form validation
+        final Validator validator = new Validator(this, false);
+        validator.addValidable(txtServer, new Required());
+        validator.addValidable(txtUsername, new Required());
+        validator.addValidable(txtPassword, new Required());
+        validator.setOnValidationChanged(new CallbackListener() {
+            @Override
+            public void onComplete() {
+                btnConnect.setEnabled(validator.isValidated());
+            }
+        });
+
+        // Preset saved server URL
+        String serverUrl = PreferenceUtil.getStringPreference(this, PreferenceUtil.PREF_SERVER_URL);
+        if (serverUrl != null) {
+            txtServer.setText(serverUrl);
+        }
+        
+        tryConnect();
+        
+        // Login button
+        btnConnect.setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                loginForm.setVisibility(View.GONE);
+                progressBar.setVisibility(View.VISIBLE);
+                
+                PreferenceUtil.setServerUrl(LoginActivity.this, txtServer.getText().toString());
+                
+                try {
+                    UserResource.login(getApplicationContext(), txtUsername.getText().toString(),
+                            txtPassword.getText().toString(), txtValidationCode.getText().toString(),
+                            new HttpCallback() {
+                        @Override
+                        public void onSuccess(JSONObject json) {
+                            // Empty previous user caches
+                            PreferenceUtil.resetUserCache(getApplicationContext());
+
+                            // Getting user info and redirecting to main activity
+                            ApplicationContext.getInstance().fetchUserInfo(LoginActivity.this, new CallbackListener() {
+                                @Override
+                                public void onComplete() {
+                                    Intent intent = new Intent(LoginActivity.this, MainActivity.class);
+                                    startActivity(intent);
+                                    finish();
+                                }
+                            });
+                        }
+
+                        @Override
+                        public void onFailure(JSONObject json, Exception e) {
+                            loginForm.setVisibility(View.VISIBLE);
+                            progressBar.setVisibility(View.GONE);
+
+                            if (json != null && json.optString("type").equals("ForbiddenError")) {
+                                DialogUtil.showOkDialog(LoginActivity.this, R.string.login_fail_title, R.string.login_fail);
+                            } else if (json != null && json.optString("type").equals("ValidationCodeRequired")) {
+                                txtValidationCode.setVisibility(View.VISIBLE);
+                                validator.addValidable(txtValidationCode, new Required());
+                                validator.validate();
+                            } else {
+                                DialogUtil.showOkDialog(LoginActivity.this, R.string.network_error_title, R.string.network_error);
+                            }
+                        }
+                    });
+                } catch (IllegalArgumentException e) {
+                    // Given URL is not valid
+                    loginForm.setVisibility(View.VISIBLE);
+                    progressBar.setVisibility(View.GONE);
+                    PreferenceUtil.setServerUrl(LoginActivity.this, null);
+                    DialogUtil.showOkDialog(LoginActivity.this, R.string.invalid_url_title, R.string.invalid_url);
+                }
+            }
+        });
+    }
+
+    /**
+     * Try to get a "session".
+     */
+    private void tryConnect() {
+        String serverUrl = PreferenceUtil.getStringPreference(this, PreferenceUtil.PREF_SERVER_URL);
+        if (serverUrl == null) {
+            // Server URL is empty
+            loginForm.setVisibility(View.VISIBLE);
+            progressBar.setVisibility(View.GONE);
+            return;
+        }
+        
+        if (ApplicationContext.getInstance().isLoggedIn()) {
+            // If we are already connected (from cache data)
+            // redirecting to main activity
+            Intent intent = new Intent(LoginActivity.this, MainActivity.class);
+            startActivity(intent);
+            finish();
+        } else {
+            // Trying to get user data
+            UserResource.info(getApplicationContext(), new HttpCallback() {
+                @Override
+                public void onSuccess(final JSONObject json) {
+                    if (json.optBoolean("anonymous", true)) {
+                        loginForm.setVisibility(View.VISIBLE);
+                        return;
+                    }
+                    
+                    // Save user data in application context
+                    ApplicationContext.getInstance().setUserInfo(getApplicationContext(), json);
+                    
+                    // Redirecting to main activity
+                    Intent intent = new Intent(LoginActivity.this, MainActivity.class);
+                    startActivity(intent);
+                    finish();
+                }
+
+                @Override
+                public void onFailure(JSONObject json, Exception e) {
+                    DialogUtil.showOkDialog(LoginActivity.this, R.string.network_error_title, R.string.network_error);
+                    loginForm.setVisibility(View.VISIBLE);
+                }
+                
+                @Override
+                public void onFinish() {
+                    progressBar.setVisibility(View.GONE);
+                }
+            });
+        }
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/activity/MainActivity.java

@@ -0,0 +1,288 @@
+package com.sismics.docs.activity;
+
+import android.app.SearchManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.Configuration;
+import android.os.Bundle;
+import android.provider.SearchRecentSuggestions;
+import android.support.v4.widget.DrawerLayout;
+import android.support.v7.app.ActionBarDrawerToggle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ListView;
+import android.widget.SearchView;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+import com.sismics.docs.adapter.TagListAdapter;
+import com.sismics.docs.event.AdvancedSearchEvent;
+import com.sismics.docs.event.SearchEvent;
+import com.sismics.docs.fragment.SearchFragment;
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.model.application.ApplicationContext;
+import com.sismics.docs.provider.RecentSuggestionsProvider;
+import com.sismics.docs.resource.TagResource;
+import com.sismics.docs.resource.UserResource;
+import com.sismics.docs.util.PreferenceUtil;
+
+import org.greenrobot.eventbus.EventBus;
+import org.greenrobot.eventbus.Subscribe;
+import org.greenrobot.eventbus.ThreadMode;
+import org.json.JSONObject;
+
+/**
+ * Main activity.
+ * 
+ * @author bgamard
+ */
+
+public class MainActivity extends AppCompatActivity {
+    private ActionBarDrawerToggle drawerToggle;
+    private MenuItem searchItem;
+    private DrawerLayout drawerLayout;
+
+    @Override
+    protected void onCreate(final Bundle args) {
+        super.onCreate(args);
+
+        // Check if logged in
+        if (!ApplicationContext.getInstance().isLoggedIn()) {
+            startActivity(new Intent(this, LoginActivity.class));
+            finish();
+            return;
+        }
+
+        // Setup the activity
+        setContentView(R.layout.main_activity);
+
+        // Enable ActionBar app icon to behave as action to toggle nav drawer
+        drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
+        if (getSupportActionBar() != null) {
+            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+            getSupportActionBar().setHomeButtonEnabled(true);
+        }
+
+        // ActionBarDrawerToggle ties together the the proper interactions
+        // between the sliding drawer and the action bar app icon
+        drawerToggle = new ActionBarDrawerToggle(this, drawerLayout,
+                R.string.drawer_open, R.string.drawer_close);
+        drawerLayout.addDrawerListener(drawerToggle);
+
+        // Fill the drawer user info
+        JSONObject userInfo = ApplicationContext.getInstance().getUserInfo();
+        TextView usernameTextView = (TextView) findViewById(R.id.usernameTextView);
+        usernameTextView.setText(userInfo.optString("username"));
+        TextView emailTextView = (TextView) findViewById(R.id.emailTextView);
+        emailTextView.setText(userInfo.optString("email"));
+
+        // Get tag list to fill the drawer
+        final ListView tagListView = (ListView) findViewById(R.id.tagListView);
+        final View tagProgressView = findViewById(R.id.tagProgressView);
+        final TextView tagEmptyView = (TextView) findViewById(R.id.tagEmptyView);
+        tagListView.setEmptyView(tagProgressView);
+        JSONObject cacheTags = PreferenceUtil.getCachedJson(this, PreferenceUtil.PREF_CACHED_TAGS_JSON);
+        if (cacheTags != null) {
+            tagListView.setAdapter(new TagListAdapter(cacheTags.optJSONArray("tags")));
+        }
+        TagResource.list(this, new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject response) {
+                PreferenceUtil.setCachedJson(MainActivity.this, PreferenceUtil.PREF_CACHED_TAGS_JSON, response);
+                tagListView.setAdapter(new TagListAdapter(response.optJSONArray("tags")));
+                tagProgressView.setVisibility(View.GONE);
+                tagListView.setEmptyView(tagEmptyView);
+            }
+
+            @Override
+            public void onFailure(JSONObject json, Exception e) {
+                tagEmptyView.setText(R.string.error_loading_tags);
+                tagProgressView.setVisibility(View.GONE);
+                tagListView.setEmptyView(tagEmptyView);
+            }
+        });
+
+        // Click on a tag
+        tagListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+                TagListAdapter adapter = (TagListAdapter) tagListView.getAdapter();
+                if (adapter == null) return;
+                TagListAdapter.TagItem tagItem = adapter.getItem(position);
+                if (tagItem == null) return;
+                searchQuery("tag:" + tagItem.getName());
+            }
+        });
+
+        // Click on All documents
+        View allDocumentsLayout = findViewById(R.id.allDocumentsLayout);
+        allDocumentsLayout.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                searchQuery(null);
+            }
+        });
+
+        // Click on Shared documents
+        View sharedDocumentsLayout = findViewById(R.id.sharedDocumentsLayout);
+        sharedDocumentsLayout.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                searchQuery("shared:yes");
+            }
+        });
+
+        // Click on Latest activity
+        View auditLogLayout = findViewById(R.id.auditLogLayout);
+        auditLogLayout.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                startActivity(new Intent(MainActivity.this, AuditLogActivity.class));
+            }
+        });
+
+        handleIntent(getIntent());
+
+        EventBus.getDefault().register(this);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.logout:
+                UserResource.logout(getApplicationContext(), new HttpCallback() {
+                    @Override
+                    public void onFinish() {
+                        // Force logout in all cases, so the user is not stuck in case of network error
+                        PreferenceUtil.clearAuthToken(MainActivity.this);
+                        ApplicationContext.getInstance().setUserInfo(getApplicationContext(), null);
+                        startActivity(new Intent(MainActivity.this, LoginActivity.class));
+                        finish();
+                    }
+                });
+                return true;
+
+            case R.id.advanced_search:
+                SearchFragment dialog = SearchFragment.newInstance();
+                dialog.show(getSupportFragmentManager(), "SearchFragment");
+                return true;
+
+            case R.id.settings:
+                startActivity(new Intent(MainActivity.this, SettingsActivity.class));
+                return true;
+
+            case android.R.id.home:
+                // The action bar home/up action should open or close the drawer.
+                // ActionBarDrawerToggle will take care of this.
+                if (drawerToggle.onOptionsItemSelected(item)) {
+                    return true;
+                }
+                return true;
+
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
+
+    @Override
+    protected void onPostCreate(Bundle savedInstanceState) {
+        super.onPostCreate(savedInstanceState);
+        // Sync the toggle state after onRestoreInstanceState has occurred.
+        drawerToggle.syncState();
+    }
+
+    @Override
+    public void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+        // Pass any configuration change to the drawer toggle
+        drawerToggle.onConfigurationChanged(newConfig);
+    }
+    
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.main_activity, menu);
+
+        // Get the SearchView and set the searchable configuration
+        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
+        searchItem = menu.findItem(R.id.action_search);
+        SearchView searchView = (SearchView) searchItem.getActionView();
+        searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
+
+        searchView.setOnCloseListener(new SearchView.OnCloseListener() {
+            @Override
+            public boolean onClose() {
+                EventBus.getDefault().post(new SearchEvent(null));
+                return false;
+            }
+        });
+
+        return super.onCreateOptionsMenu(menu);
+    }
+
+    @Override
+    protected void onNewIntent(Intent intent) {
+        setIntent(intent);
+        handleIntent(intent);
+    }
+
+    /**
+     * Handle the incoming intent.
+     *
+     * @param intent Intent
+     */
+    private void handleIntent(Intent intent) {
+        // Intent is consumed
+        setIntent(null);
+
+        if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
+            // Perform a search query
+            String query = intent.getStringExtra(SearchManager.QUERY);
+
+            // Collapse the SearchView
+            if (searchItem != null) {
+                searchItem.collapseActionView();
+            }
+
+            // Save the query
+            SearchRecentSuggestions suggestions = new SearchRecentSuggestions(this, RecentSuggestionsProvider.AUTHORITY, RecentSuggestionsProvider.MODE);
+            suggestions.saveRecentQuery(query, null);
+
+            EventBus.getDefault().post(new SearchEvent(query));
+        }
+    }
+
+    /**
+     * Perform a search query.
+     *
+     * @param query Query
+     */
+    private void searchQuery(String query) {
+        SearchView searchView = (SearchView) searchItem.getActionView();
+        searchView.setQuery(query, true);
+        searchView.setIconified(query == null);
+        searchView.clearFocus();
+        drawerLayout.closeDrawers();
+    }
+
+    /**
+     * An advanced search event has been fired.
+     *
+     * @param event Advanced search event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(AdvancedSearchEvent event) {
+        searchQuery(event.getQuery());
+    }
+
+    @Override
+    protected void onDestroy() {
+        EventBus.getDefault().unregister(this);
+        super.onDestroy();
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/activity/SettingsActivity.java

@@ -0,0 +1,40 @@
+package com.sismics.docs.activity;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.MenuItem;
+
+import com.sismics.docs.fragment.SettingsFragment;
+
+/**
+ * Settings activity.
+ *
+ * @author bgamard.
+ */
+public class SettingsActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        if (getSupportActionBar() != null) {
+            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+            getSupportActionBar().setHomeButtonEnabled(true);
+        }
+
+        // Display the fragment as the main content.
+        getFragmentManager().beginTransaction()
+                .replace(android.R.id.content, new SettingsFragment())
+                .commit();
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                finish();
+                return true;
+        }
+
+        return super.onOptionsItemSelected(item);
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/activity/UserProfileActivity.java

@@ -0,0 +1,91 @@
+package com.sismics.docs.activity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.model.application.ApplicationContext;
+import com.sismics.docs.resource.UserResource;
+
+import org.json.JSONObject;
+
+/**
+ * User profile activity.
+ *
+ * @author bgamard.
+ */
+public class UserProfileActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Check if logged in
+        if (!ApplicationContext.getInstance().isLoggedIn()) {
+            startActivity(new Intent(this, LoginActivity.class));
+            finish();
+            return;
+        }
+
+        // Handle activity context
+        if (getIntent() == null) {
+            finish();
+            return;
+        }
+
+        // Input username
+        final String username = getIntent().getStringExtra("username");
+        if (username == null) {
+            finish();
+            return;
+        }
+
+        // Setup the activity
+        setTitle(username);
+        setContentView(R.layout.userprofile_activity);
+        if (getSupportActionBar() != null) {
+            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+            getSupportActionBar().setHomeButtonEnabled(true);
+        }
+
+        // Get the user and populate the view
+        final ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressBar);
+        final View layoutView = findViewById(R.id.layout);
+        progressBar.setVisibility(View.VISIBLE);
+        layoutView.setVisibility(View.GONE);
+        UserResource.get(this, username, new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject json) {
+                TextView emailTextView = (TextView) findViewById(R.id.emailTextView);
+                emailTextView.setText(json.optString("email"));
+
+                TextView quotaTextView = (TextView) findViewById(R.id.quotaTextView);
+                quotaTextView.setText(getString(R.string.storage_display,
+                        Math.round(json.optLong("storage_current") / 1000000),
+                        Math.round(json.optLong("storage_quota") / 1000000)));
+            }
+
+            @Override
+            public void onFinish() {
+                progressBar.setVisibility(View.GONE);
+                layoutView.setVisibility(View.VISIBLE);
+            }
+        });
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                finish();
+                return true;
+        }
+
+        return super.onOptionsItemSelected(item);
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/adapter/AclListAdapter.java

@@ -0,0 +1,119 @@
+package com.sismics.docs.adapter;
+
+import android.content.Context;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * ACL list adapter.
+ *
+ * @author bgamard.
+ */
+public class AclListAdapter extends BaseAdapter {
+    /**
+     * Shares.
+     */
+    private List<AclItem> aclItemList;
+
+    /**
+     * ACL list adapter.
+     *
+     * @param acls ACLs
+     */
+    public AclListAdapter(JSONArray acls) {
+        this.aclItemList = new ArrayList<>();
+
+        // Group ACLs
+        for (int i = 0; i < acls.length(); i++) {
+            JSONObject acl = acls.optJSONObject(i);
+            String type = acl.optString("type");
+            String name = acl.optString("name");
+            String perm = acl.optString("perm");
+
+            boolean found = false;
+            for (AclItem aclItem : aclItemList) {
+                if (aclItem.type.equals(type) && aclItem.name.equals(name)) {
+                    aclItem.permList.add(perm);
+                    found = true;
+                }
+            }
+
+            if (!found) {
+                AclItem aclItem = new AclItem();
+                aclItem.type = type;
+                aclItem.name = name;
+                aclItem.permList.add(perm);
+                this.aclItemList.add(aclItem);
+            }
+        }
+    }
+
+    @Override
+    public int getCount() {
+        return aclItemList.size();
+    }
+
+    @Override
+    public AclItem getItem(int position) {
+        return aclItemList.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return getItem(position).hashCode();
+    }
+
+    @Override
+    public View getView(int position, View view, final ViewGroup parent) {
+        if (view == null) {
+            LayoutInflater vi = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            view = vi.inflate(R.layout.acl_list_item, parent, false);
+        }
+
+        // Fill the view
+        final AclItem aclItem = getItem(position);
+        TextView typeTextView = (TextView) view.findViewById(R.id.typeTextView);
+        typeTextView.setText(aclItem.type);
+        TextView nameTextView = (TextView) view.findViewById(R.id.nameTextView);
+        nameTextView.setText(aclItem.name);
+        TextView permTextView = (TextView) view.findViewById(R.id.permTextView);
+        permTextView.setText(TextUtils.join(" + ", aclItem.permList));
+
+        return view;
+    }
+
+    /**
+     * An ACL item in the list.
+     * Permissions are grouped together.
+     */
+    public static class AclItem {
+        private String type;
+        private String name;
+        private List<String> permList = new ArrayList<>();
+
+        public String getType() {
+            return type;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        @Override
+        public int hashCode() {
+            return (type + name).hashCode();
+        }
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/adapter/AuditLogListAdapter.java

@@ -0,0 +1,98 @@
+package com.sismics.docs.adapter;
+
+import android.content.Context;
+import android.content.Intent;
+import android.text.TextUtils;
+import android.text.format.DateFormat;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * Audit log list adapter.
+ *
+ * @author bgamard.
+ */
+public class AuditLogListAdapter extends BaseAdapter {
+    /**
+     * Shares.
+     */
+    private List<JSONObject> logList;
+
+    /**
+     * Audit log list adapter.
+     *
+     * @param logs Logs
+     */
+    public AuditLogListAdapter(JSONArray logs) {
+        this.logList = new ArrayList<>();
+
+        for (int i = 0; i < logs.length(); i++) {
+            logList.add(logs.optJSONObject(i));
+        }
+    }
+
+    @Override
+    public int getCount() {
+        return logList.size();
+    }
+
+    @Override
+    public JSONObject getItem(int position) {
+        return logList.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return getItem(position).hashCode();
+    }
+
+    @Override
+    public View getView(int position, View view, final ViewGroup parent) {
+        if (view == null) {
+            LayoutInflater vi = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            view = vi.inflate(R.layout.auditlog_list_item, parent, false);
+        }
+
+        // Build message
+        final JSONObject log = getItem(position);
+        StringBuilder message = new StringBuilder(log.optString("class"));
+        switch (log.optString("type")) {
+            case "CREATE": message.append(" created"); break;
+            case "UPDATE": message.append(" updated"); break;
+            case "DELETE": message.append(" deleted"); break;
+        }
+        switch (log.optString("class")) {
+            case "Document":
+            case "Acl":
+            case "Tag":
+            case "User":
+            case "Group":
+                message.append(" : ");
+                message.append(log.optString("message"));
+                break;
+        }
+
+        // Fill the view
+        TextView usernameTextView = (TextView) view.findViewById(R.id.usernameTextView);
+        TextView messageTextView = (TextView) view.findViewById(R.id.messageTextView);
+        TextView dateTextView = (TextView) view.findViewById(R.id.dateTextView);
+        usernameTextView.setText(log.optString("username"));
+        messageTextView.setText(message);
+        String date = DateFormat.getDateFormat(parent.getContext()).format(new Date(log.optLong("create_date")));
+        dateTextView.setText(date);
+
+        return view;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/adapter/CommentListAdapter.java

@@ -0,0 +1,115 @@
+package com.sismics.docs.adapter;
+
+import android.content.Context;
+import android.text.format.DateFormat;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+import com.sismics.docs.util.OkHttpUtil;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * Comment list adapter.
+ *
+ * @author bgamard.
+ */
+public class CommentListAdapter extends BaseAdapter {
+    /**
+     * Tags.
+     */
+    private List<JSONObject> commentList = new ArrayList<>();
+
+    /**
+     * Context.
+     */
+    private Context context;
+
+    /**
+     * Comment list adapter.
+     *
+     * @param commentsArray Comments
+     */
+    public CommentListAdapter(Context context, JSONArray commentsArray) {
+        this.context = context;
+        for (int i = 0; i < commentsArray.length(); i++) {
+            commentList.add(commentsArray.optJSONObject(i));
+        }
+    }
+
+    @Override
+    public int getCount() {
+        return commentList.size();
+    }
+
+    @Override
+    public JSONObject getItem(int position) {
+        return commentList.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return getItem(position).optString("id").hashCode();
+    }
+
+    @Override
+    public View getView(int position, View view, ViewGroup parent) {
+        if (view == null) {
+            LayoutInflater vi = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            view = vi.inflate(R.layout.comment_list_item, parent, false);
+        }
+
+        // Fill the view
+        JSONObject comment = getItem(position);
+        TextView creatorTextView = (TextView) view.findViewById(R.id.creatorTextView);
+        TextView dateTextView = (TextView) view.findViewById(R.id.dateTextView);
+        TextView contentTextView = (TextView) view.findViewById(R.id.contentTextView);
+        ImageView gravatarImageView = (ImageView) view.findViewById(R.id.gravatarImageView);
+        creatorTextView.setText(comment.optString("creator"));
+        dateTextView.setText(DateFormat.getDateFormat(dateTextView.getContext()).format(new Date(comment.optLong("create_date"))));
+        contentTextView.setText(comment.optString("content"));
+
+        // Gravatar image
+        String gravatarUrl = "http://www.gravatar.com/avatar/" + comment.optString("creator_gravatar") + "?s=128d=identicon";
+        OkHttpUtil.picasso(context)
+                .load(gravatarUrl)
+                .into(gravatarImageView);
+
+        return view;
+    }
+
+    /**
+     * Add a new comment.
+     *
+     * @param comment Comment
+     */
+    public void add(JSONObject comment) {
+        commentList.add(comment);
+        notifyDataSetChanged();
+    }
+
+    /**
+     * Remove a comment.
+     *
+     * @param commentId Comment ID
+     */
+    public void remove(String commentId) {
+        for (JSONObject comment : commentList) {
+            if (comment.optString("id").equals(commentId)) {
+                commentList.remove(comment);
+                notifyDataSetChanged();
+                return;
+            }
+        }
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/adapter/DocListAdapter.java

@@ -0,0 +1,158 @@
+package com.sismics.docs.adapter;
+
+import android.support.v7.widget.RecyclerView;
+import android.text.format.DateFormat;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+import com.sismics.docs.util.SpannableUtil;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * Adapter of documents.
+ *
+ * @author bgamard
+ */
+public class DocListAdapter extends RecyclerView.Adapter<DocListAdapter.ViewHolder> {
+    /**
+     * Displayed documents.
+     */
+    private List<JSONObject> documents;
+
+    /**
+     * ViewHolder.
+     */
+    public static class ViewHolder extends RecyclerView.ViewHolder {
+        public TextView titleTextView;
+        public TextView subtitleTextView;
+        public TextView dateTextView;
+        public ImageView sharedImageView;
+
+        public ViewHolder(View v) {
+            super(v);
+            titleTextView = (TextView) v.findViewById(R.id.titleTextView);
+            subtitleTextView = (TextView) v.findViewById(R.id.subtitleTextView);
+            dateTextView = (TextView) v.findViewById(R.id.dateTextView);
+            sharedImageView = (ImageView) v.findViewById(R.id.sharedImageView);
+        }
+    }
+
+    /**
+     * Default constructor.
+     */
+    public DocListAdapter() {
+        // Nothing
+    }
+
+    @Override
+    public DocListAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View v = LayoutInflater.from(parent.getContext()).
+                inflate(R.layout.doc_list_item, parent, false);
+
+        return new ViewHolder(v);
+    }
+
+    @Override
+    public void onBindViewHolder(ViewHolder holder, int position) {
+        JSONObject document = documents.get(position);
+
+        holder.titleTextView.setText(document.optString("title"));
+
+        JSONArray tags = document.optJSONArray("tags");
+        holder.subtitleTextView.setText(SpannableUtil.buildSpannableTags(tags));
+
+        String date = DateFormat.getDateFormat(holder.dateTextView.getContext()).format(new Date(document.optLong("create_date")));
+        holder.dateTextView.setText(date);
+
+        holder.sharedImageView.setVisibility(document.optBoolean("shared") ? View.VISIBLE : View.GONE);
+    }
+
+    @Override
+    public int getItemCount() {
+        if (documents == null) {
+            return 0;
+        }
+        return documents.size();
+    }
+
+    /**
+     * Return an item at a given position.
+     *
+     * @param position Item position
+     * @return Item
+     */
+    public JSONObject getItemAt(int position) {
+        if (documents == null) {
+            return null;
+        }
+
+        return documents.get(position);
+    }
+
+    /**
+     * Clear the documents.
+     */
+    public void clearDocuments() {
+        documents = new ArrayList<>();
+        notifyDataSetChanged();
+    }
+
+    /**
+     * Add documents to display.
+     *
+     * @param documents Documents
+     */
+    public void addDocuments(JSONArray documents) {
+        if (this.documents == null) {
+            this.documents = new ArrayList<>();
+        }
+
+        for (int i = 0; i < documents.length(); i++) {
+            this.documents.add(documents.optJSONObject(i));
+        }
+
+        notifyDataSetChanged();
+    }
+
+    /**
+     * Update a document.
+     *
+     * @param document Document
+     */
+    public void updateDocument(JSONObject document) {
+        for (int i = 0; i < documents.size(); i++) {
+            JSONObject currentDoc = documents.get(i);
+            if (currentDoc.optString("id").equals(document.optString("id"))) {
+                // This document has been modified
+                documents.set(i, document);
+                notifyDataSetChanged();
+            }
+        }
+    }
+
+    /**
+     * Delete a document.
+     *
+     * @param documentId Document ID
+     */
+    public void deleteDocument(String documentId) {
+        for (int i = 0; i < documents.size(); i++) {
+            JSONObject currentDoc = documents.get(i);
+            if (currentDoc.optString("id").equals(documentId)) {
+                // This document has been deleted
+                documents.remove(i);
+                notifyDataSetChanged();
+            }
+        }
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/adapter/FilePagerAdapter.java

@@ -0,0 +1,134 @@
+package com.sismics.docs.adapter;
+
+import android.content.Context;
+import android.support.v4.view.PagerAdapter;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ProgressBar;
+
+import com.sismics.docs.R;
+import com.sismics.docs.util.OkHttpUtil;
+import com.sismics.docs.util.PreferenceUtil;
+import com.squareup.picasso.Callback;
+import com.squareup.picasso.MemoryPolicy;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import it.sephiroth.android.library.imagezoom.ImageViewTouch;
+import it.sephiroth.android.library.imagezoom.ImageViewTouchBase;
+
+/**
+ * @author bgamard.
+ */
+public class FilePagerAdapter extends PagerAdapter {
+    /**
+     * Files list.
+     */
+    private List<JSONObject> files;
+
+    /**
+     * Context.
+     */
+    private Context context;
+
+    /**
+     * File pager adapter.
+     *
+     * @param context Context
+     * @param filesArray Files
+     */
+    public FilePagerAdapter(Context context, JSONArray filesArray) {
+        this.files = new ArrayList<>();
+        for (int i = 0; i < filesArray.length(); i++) {
+            files.add(filesArray.optJSONObject(i));
+        }
+        this.context = context;
+    }
+
+    @Override
+    public Object instantiateItem(ViewGroup container, int position) {
+        View view = LayoutInflater.from(container.getContext()).inflate(R.layout.file_viewpager_item, container, false);
+
+        ImageViewTouch fileImageView = (ImageViewTouch) view.findViewById(R.id.fileImageView);
+        final ProgressBar progressBar = (ProgressBar) view.findViewById(R.id.fileProgressBar);
+        JSONObject file = files.get(position);
+        String fileUrl = PreferenceUtil.getServerUrl(context) + "/api/file/" + file.optString("id") + "/data?size=web";
+
+        // Load image
+        OkHttpUtil.picasso(context)
+                .load(fileUrl)
+                .memoryPolicy(MemoryPolicy.NO_CACHE, MemoryPolicy.NO_STORE) // Don't memory cache the images
+                .into(fileImageView, new Callback.EmptyCallback() {
+                    @Override
+                    public void onSuccess() {
+                        progressBar.setVisibility(View.GONE);
+                    }
+                });
+
+        fileImageView.setDisplayType(ImageViewTouchBase.DisplayType.FIT_TO_SCREEN);
+
+        container.addView(view, 0);
+
+        return view;
+    }
+
+    @Override
+    public void destroyItem(ViewGroup container, int position, Object object) {
+        container.removeView((View) object);
+    }
+
+    @Override
+    public int getCount() {
+        if (files == null) {
+            return 0;
+        }
+
+        return files.size();
+    }
+
+    @Override
+    public boolean isViewFromObject(View view, Object object) {
+        return view == object;
+    }
+
+    /**
+     * Return the object at a given position.
+     *
+     * @param position Position
+     * @return Object
+     */
+    public JSONObject getObjectAt(int position) {
+        if (files == null || position < 0 || position >= files.size()) {
+            return null;
+        }
+
+        return files.get(position);
+    }
+
+    /**
+     * Remove a file.
+     *
+     * @param fileId File ID
+     */
+    public void remove(String fileId) {
+        if (files == null || fileId == null) return;
+
+        for (JSONObject file : files) {
+            if (fileId.equals(file.optString("id"))) {
+                files.remove(file);
+                notifyDataSetChanged();
+                break;
+            }
+        }
+    }
+
+    @Override
+    public int getItemPosition(Object object) {
+        return POSITION_NONE;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/adapter/LanguageAdapter.java

@@ -0,0 +1,113 @@
+package com.sismics.docs.adapter;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Languages adapter.
+ *
+ * @author bgamard.
+ */
+public class LanguageAdapter extends BaseAdapter {
+    /**
+     * Context.
+     */
+    private Context context;
+
+    private List<Language> languageList;
+
+    public LanguageAdapter(Context context, boolean noValue) {
+        this.context = context;
+        this.languageList = new ArrayList<>();
+        if (noValue) {
+            languageList.add(new Language("", R.string.all_languages, 0));
+        }
+        languageList.add(new Language("fra", R.string.language_french, R.drawable.fra));
+        languageList.add(new Language("eng", R.string.language_english, R.drawable.eng));
+    }
+
+    @Override
+    public int getCount() {
+        return languageList.size();
+    }
+
+    @Override
+    public Language getItem(int position) {
+        if (position >= languageList.size()) {
+            return null;
+        }
+        return languageList.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return getItem(position).id.hashCode();
+    }
+
+    @Override
+    public View getView(int position, View view, ViewGroup parent) {
+        if (view == null) {
+            LayoutInflater vi = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            view = vi.inflate(R.layout.language_list_item, parent, false);
+        }
+
+        // Fill the view
+        Language language = getItem(position);
+        TextView languageTextView = (TextView) view.findViewById(R.id.languageTextView);
+        languageTextView.setText(context.getText(language.name));
+        languageTextView.setCompoundDrawablesWithIntrinsicBounds(language.drawable, 0, 0, 0);
+
+        return view;
+    }
+
+    /**
+     * Return the position of a language.
+     * 0 if it doesn't exists.
+     *
+     * @param languageId Language ID
+     * @return Position
+     */
+    public int getItemPosition(String languageId) {
+        for (Language language : languageList) {
+            if (language.id.equals(languageId)) {
+                return languageList.indexOf(language);
+            }
+        }
+        return 0;
+    }
+
+    /**
+     * A language.
+     */
+    public static class Language {
+        private String id;
+        private int name;
+        private int drawable;
+
+        /**
+         * A language.
+         *
+         * @param id Language ID
+         * @param name Language name
+         * @param drawable Language drawable
+         */
+        public Language(String id, int name, int drawable) {
+            this.id = id;
+            this.name = name;
+            this.drawable = drawable;
+        }
+
+        public String getId() {
+            return id;
+        }
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/adapter/ShareListAdapter.java

@@ -0,0 +1,98 @@
+package com.sismics.docs.adapter;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ImageButton;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+import com.sismics.docs.event.ShareDeleteEvent;
+import com.sismics.docs.event.ShareSendEvent;
+
+import org.greenrobot.eventbus.EventBus;
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Share list adapter.
+ *
+ * @author bgamard.
+ */
+public class ShareListAdapter extends BaseAdapter {
+    /**
+     * Shares.
+     */
+    private List<JSONObject> acls;
+
+    /**
+     * Share list adapter.
+     *
+     * @param acls ACLs
+     */
+    public ShareListAdapter(JSONArray acls) {
+        this.acls = new ArrayList<>();
+
+        // Extract only share ACLs
+        for (int i = 0; i < acls.length(); i++) {
+            JSONObject acl = acls.optJSONObject(i);
+            if (acl.optString("type").equals("SHARE")) {
+                this.acls.add(acl);
+            }
+        }
+    }
+
+    @Override
+    public int getCount() {
+        return acls.size();
+    }
+
+    @Override
+    public JSONObject getItem(int position) {
+        return acls.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return getItem(position).optString("id").hashCode();
+    }
+
+    @Override
+    public View getView(int position, View view, final ViewGroup parent) {
+        if (view == null) {
+            LayoutInflater vi = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            view = vi.inflate(R.layout.share_list_item, parent, false);
+        }
+
+        // Fill the view
+        final JSONObject acl = getItem(position);
+        String name = acl.optString("name");
+        TextView shareTextView = (TextView) view.findViewById(R.id.shareTextView);
+        shareTextView.setText(name.isEmpty() ? parent.getContext().getString(R.string.share_default_name) : name);
+
+        // Delete a share
+        ImageButton shareDeleteButton = (ImageButton) view.findViewById(R.id.shareDeleteButton);
+        shareDeleteButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                EventBus.getDefault().post(new ShareDeleteEvent(acl.optString("id")));
+            }
+        });
+
+        // Send the link
+        ImageButton shareSendButton = (ImageButton) view.findViewById(R.id.shareSendButton);
+        shareSendButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                EventBus.getDefault().post(new ShareSendEvent(acl));
+            }
+        });
+
+        return view;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/adapter/TagAutoCompleteAdapter.java

@@ -0,0 +1,53 @@
+package com.sismics.docs.adapter;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.graphics.PorterDuff;
+import android.graphics.drawable.Drawable;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+import com.tokenautocomplete.FilteredArrayAdapter;
+
+import org.json.JSONObject;
+
+import java.util.List;
+
+/**
+ * Tag auto-complete adapter.
+ *
+ * @author bgamard.
+ */
+public class TagAutoCompleteAdapter extends FilteredArrayAdapter<JSONObject> {
+    public TagAutoCompleteAdapter(Context context, int resource, List<JSONObject> objects) {
+        super(context, resource, objects);
+    }
+
+    @Override
+    public View getView(int position, View view, ViewGroup parent) {
+        if (view == null) {
+            LayoutInflater vi = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            view = vi.inflate(R.layout.tag_autocomplete_item, parent, false);
+        }
+
+        // Fill the view
+        JSONObject tag = getItem(position);
+        TextView textView = (TextView) view;
+        textView.setText(tag.optString("name"));
+
+        Drawable drawable = textView.getCompoundDrawables()[0].mutate();
+        drawable.setColorFilter(Color.parseColor(tag.optString("color")), PorterDuff.Mode.MULTIPLY);
+        textView.setCompoundDrawables(drawable, null, null, null);
+        textView.invalidate();
+
+        return view;
+    }
+
+    @Override
+    protected boolean keepObject(JSONObject tag, String s) {
+        return tag.optString("name").toLowerCase().startsWith(s.toLowerCase());
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/adapter/TagListAdapter.java

@@ -0,0 +1,132 @@
+package com.sismics.docs.adapter;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.Color;
+import android.graphics.PorterDuff;
+import android.graphics.drawable.Drawable;
+import android.util.TypedValue;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+
+/**
+ * Tag list adapter.
+ *
+ * @author bgamard.
+ */
+public class TagListAdapter extends BaseAdapter {
+    /**
+     * Tags.
+     */
+    private List<TagItem> tagItemList = new ArrayList<>();
+
+    /**
+     * Tag list adapter.
+     *
+     * @param tagsArray Tags
+     */
+    public TagListAdapter(JSONArray tagsArray) {
+        List<JSONObject> tags = new ArrayList<>();
+        for (int i = 0; i < tagsArray.length(); i++) {
+            tags.add(tagsArray.optJSONObject(i));
+        }
+
+        // Reorder tags by parent/child relation and compute depth
+        int depth = 0;
+        initTags(tags, "", depth);
+    }
+
+    /**
+     * Init tags model recursively.
+     *
+     * @param tags All tags from server
+     * @param parentId Parent ID
+     * @param depth Depth
+     */
+    private void initTags(List<JSONObject> tags, String parentId, int depth) {
+        // Get all tags with this parent
+        for (JSONObject tag : tags) {
+            String tagParentId = tag.optString("parent");
+            if (parentId.equals(tagParentId)) {
+                TagItem tagItem = new TagItem();
+                tagItem.id = tag.optString("id");
+                tagItem.name = tag.optString("name");
+                tagItem.color = tag.optString("color");
+                tagItem.depth = depth;
+                tagItemList.add(tagItem);
+                initTags(tags, tagItem.id, depth + 1);
+            }
+        }
+    }
+
+    @Override
+    public int getCount() {
+        return tagItemList.size();
+    }
+
+    @Override
+    public TagItem getItem(int position) {
+        return tagItemList.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return getItem(position).id.hashCode();
+    }
+
+    @Override
+    public View getView(int position, View view, ViewGroup parent) {
+        if (view == null) {
+            LayoutInflater vi = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            view = vi.inflate(R.layout.tag_list_item, parent, false);
+        }
+
+        // Fill the view
+        TagItem tagItem = getItem(position);
+        TextView tagTextView = (TextView) view.findViewById(R.id.tagTextView);
+        tagTextView.setText(tagItem.name);
+
+        // Label color filtering
+        ImageView labelImageView = (ImageView) view.findViewById(R.id.labelImageView);
+        Drawable labelDrawable = labelImageView.getDrawable().mutate();
+        labelDrawable.setColorFilter(Color.parseColor(tagItem.color), PorterDuff.Mode.MULTIPLY);
+        labelImageView.setImageDrawable(labelDrawable);
+        labelImageView.invalidate();
+
+        // Offset according to depth
+        Resources resources = parent.getContext().getResources();
+        ViewGroup.MarginLayoutParams layoutParams = (ViewGroup.MarginLayoutParams) labelImageView.getLayoutParams();
+        layoutParams.leftMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, tagItem.depth * 12, resources.getDisplayMetrics());
+        labelImageView.setLayoutParams(layoutParams);
+        labelImageView.requestLayout();
+
+        return view;
+    }
+
+    /**
+     * A tag item in the tags list.
+     */
+    public static class TagItem {
+        private String id;
+        private String name;
+        private String color;
+        private int depth;
+
+        public String getName() {
+            return name;
+        }
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/AdvancedSearchEvent.java

@@ -0,0 +1,31 @@
+package com.sismics.docs.event;
+
+/**
+ * Advanced search event.
+ *
+ * @author bgamard.
+ */
+public class AdvancedSearchEvent {
+    /**
+     * Search query.
+     */
+    private String query;
+
+    /**
+     * Create an advanced search event.
+     *
+     * @param query Query
+     */
+    public AdvancedSearchEvent(String query) {
+        this.query = query;
+    }
+
+    /**
+     * Getter of query.
+     *
+     * @return query
+     */
+    public String getQuery() {
+        return query;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/CommentAddEvent.java

@@ -0,0 +1,33 @@
+package com.sismics.docs.event;
+
+import org.json.JSONObject;
+
+/**
+ * Comment add event.
+ *
+ * @author bgamard.
+ */
+public class CommentAddEvent {
+    /**
+     * Comment.
+     */
+    private JSONObject comment;
+
+    /**
+     * Create a comment add event.
+     *
+     * @param comment Comment
+     */
+    public CommentAddEvent(JSONObject comment) {
+        this.comment = comment;
+    }
+
+    /**
+     * Getter of comment.
+     *
+     * @return comment
+     */
+    public JSONObject getComment() {
+        return comment;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/CommentDeleteEvent.java

@@ -0,0 +1,31 @@
+package com.sismics.docs.event;
+
+/**
+ * Comment delete event.
+ *
+ * @author bgamard.
+ */
+public class CommentDeleteEvent {
+    /**
+     * Comment ID.
+     */
+    private String commentId;
+
+    /**
+     * Create a comment add event.
+     *
+     * @param commentId Comment ID
+     */
+    public CommentDeleteEvent(String commentId) {
+        this.commentId = commentId;
+    }
+
+    /**
+     * Getter of commentId.
+     *
+     * @return commentId
+     */
+    public String getCommentId() {
+        return commentId;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/DocumentAddEvent.java

@@ -0,0 +1,33 @@
+package com.sismics.docs.event;
+
+import org.json.JSONObject;
+
+/**
+ * Document add event.
+ *
+ * @author bgamard.
+ */
+public class DocumentAddEvent {
+    /**
+     * Document.
+     */
+    private JSONObject document;
+
+    /**
+     * Create a document add event.
+     *
+     * @param document Document
+     */
+    public DocumentAddEvent(JSONObject document) {
+        this.document = document;
+    }
+
+    /**
+     * Getter of document.
+     *
+     * @return document
+     */
+    public JSONObject getDocument() {
+        return document;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/DocumentDeleteEvent.java

@@ -0,0 +1,31 @@
+package com.sismics.docs.event;
+
+/**
+ * Document delete event.
+ *
+ * @author bgamard.
+ */
+public class DocumentDeleteEvent {
+    /**
+     * Document ID.
+     */
+    private String documentId;
+
+    /**
+     * Create a document delete event.
+     *
+     * @param documentId Document ID
+     */
+    public DocumentDeleteEvent(String documentId) {
+        this.documentId = documentId;
+    }
+
+    /**
+     * Getter of documentId.
+     *
+     * @return documentId
+     */
+    public String getDocumentId() {
+        return documentId;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/DocumentEditEvent.java

@@ -0,0 +1,33 @@
+package com.sismics.docs.event;
+
+import org.json.JSONObject;
+
+/**
+ * Document edit event.
+ *
+ * @author bgamard.
+ */
+public class DocumentEditEvent {
+    /**
+     * Document.
+     */
+    private JSONObject document;
+
+    /**
+     * Create a document edit event.
+     *
+     * @param document Document
+     */
+    public DocumentEditEvent(JSONObject document) {
+        this.document = document;
+    }
+
+    /**
+     * Getter of document.
+     *
+     * @return document
+     */
+    public JSONObject getDocument() {
+        return document;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/DocumentFullscreenEvent.java

@@ -0,0 +1,17 @@
+package com.sismics.docs.event;
+
+/**
+ * @author bgamard.
+ */
+public class DocumentFullscreenEvent {
+
+    private boolean fullscreen;
+
+    public DocumentFullscreenEvent(boolean fullscreen) {
+        this.fullscreen = fullscreen;
+    }
+
+    public boolean isFullscreen() {
+        return fullscreen;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/FileAddEvent.java

@@ -0,0 +1,45 @@
+package com.sismics.docs.event;
+
+/**
+ * File add event.
+ *
+ * @author bgamard.
+ */
+public class FileAddEvent {
+    /**
+     * Document ID.
+     */
+    private String documentId;
+    /**
+     * File ID.
+     */
+    private String fileId;
+
+    /**
+     * Create a file add event.
+     *
+     * @param fileId File ID
+     */
+    public FileAddEvent(String documentId, String fileId) {
+        this.documentId = documentId;
+        this.fileId = fileId;
+    }
+
+    /**
+     * Getter of fileId.
+     *
+     * @return fileId
+     */
+    public String getFileId() {
+        return fileId;
+    }
+
+    /**
+     * Getter of documentId.
+     *
+     * @return documentId
+     */
+    public String getDocumentId() {
+        return documentId;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/FileDeleteEvent.java

@@ -0,0 +1,31 @@
+package com.sismics.docs.event;
+
+/**
+ * File delete event.
+ *
+ * @author bgamard.
+ */
+public class FileDeleteEvent {
+    /**
+     * File ID.
+     */
+    private String fileId;
+
+    /**
+     * Create a document delete event.
+     *
+     * @param fileId File ID
+     */
+    public FileDeleteEvent(String fileId) {
+        this.fileId = fileId;
+    }
+
+    /**
+     * Getter of fileId.
+     *
+     * @return fileId
+     */
+    public String getFileId() {
+        return fileId;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/SearchEvent.java

@@ -0,0 +1,31 @@
+package com.sismics.docs.event;
+
+/**
+ * Search event.
+ *
+ * @author bgamard.
+ */
+public class SearchEvent {
+    /**
+     * Search query.
+     */
+    private String query;
+
+    /**
+     * Create a search event.
+     *
+     * @param query Query
+     */
+    public SearchEvent(String query) {
+        this.query = query;
+    }
+
+    /**
+     * Getter of query.
+     *
+     * @return query
+     */
+    public String getQuery() {
+        return query;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/ShareDeleteEvent.java

@@ -0,0 +1,26 @@
+package com.sismics.docs.event;
+
+/**
+ * Share delete event.
+ *
+ * @author bgamard.
+ */
+public class ShareDeleteEvent {
+    /**
+     * Share ID
+     */
+    private String id;
+
+    /**
+     * Create a share delete event.
+     *
+     * @param id Share ID
+     */
+    public ShareDeleteEvent(String id) {
+        this.id = id;
+    }
+
+    public String getId() {
+        return id;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/event/ShareSendEvent.java

@@ -0,0 +1,28 @@
+package com.sismics.docs.event;
+
+import org.json.JSONObject;
+
+/**
+ * Share send event.
+ *
+ * @author bgamard.
+ */
+public class ShareSendEvent {
+    /**
+     * ACL data.
+     */
+    private JSONObject acl;
+
+    /**
+     * Create a share send event.
+     *
+     * @param acl ACL data
+     */
+    public ShareSendEvent(JSONObject acl) {
+        this.acl = acl;
+    }
+
+    public JSONObject getAcl() {
+        return acl;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/fragment/DocExportPdfFragment.java

@@ -0,0 +1,95 @@
+package com.sismics.docs.fragment;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.v4.app.DialogFragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.CheckBox;
+import android.widget.SeekBar;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+import com.sismics.docs.util.NetworkUtil;
+import com.sismics.docs.util.PreferenceUtil;
+
+import java.util.Locale;
+
+/**
+ * Export PDF dialog fragment.
+ *
+ * @author bgamard.
+ */
+public class DocExportPdfFragment extends DialogFragment {
+    /**
+     * Export PDF dialog fragment.
+     *
+     * @param id Document ID
+     * @param title Document title
+     */
+    public static DocExportPdfFragment newInstance(String id, String title) {
+        DocExportPdfFragment fragment = new DocExportPdfFragment();
+        Bundle args = new Bundle();
+        args.putString("id", id);
+        args.putString("title", title);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
+
+        // Setup the view
+        LayoutInflater inflater = getActivity().getLayoutInflater();
+        View view = inflater.inflate(R.layout.document_export_pdf_dialog, null);
+        final SeekBar marginSeekBar = (SeekBar) view.findViewById(R.id.marginSeekBar);
+        final CheckBox exportMetadataCheckbox = (CheckBox) view.findViewById(R.id.exportMetadataCheckbox);
+        final CheckBox exportCommentsCheckbox = (CheckBox) view.findViewById(R.id.exportCommentsCheckbox);
+        final CheckBox fitToPageCheckbox = (CheckBox) view.findViewById(R.id.fitToPageCheckbox);
+        final TextView marginValueText = (TextView) view.findViewById(R.id.marginValueText);
+
+        // Margin label follow seekbar value
+        marginSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                marginValueText.setText(String.format(Locale.ENGLISH, "%d", progress));
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+
+            }
+        });
+
+        // Build the dialog
+        builder.setView(view)
+                .setPositiveButton(R.string.download, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int id) {
+                        // Download the PDF
+                        String pdfUrl = PreferenceUtil.getServerUrl(getActivity()) + "/api/document/" + getArguments().getString("id") + "/pdf?" +
+                                "metadata=" + exportMetadataCheckbox.isChecked() + "&comments=" + exportCommentsCheckbox.isChecked() + "&fitimagetopage=" + fitToPageCheckbox.isChecked() +
+                                "&margin=" + marginSeekBar.getProgress();
+                        String title = getArguments().getString("title");
+                        NetworkUtil.downloadFile(getActivity(), pdfUrl, title + ".pdf", title, getString(R.string.download_pdf_title));
+
+                        getDialog().cancel();
+                    }
+                })
+                .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int id) {
+                        getDialog().cancel();
+                    }
+                });
+        return builder.create();
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/fragment/DocListFragment.java

@@ -0,0 +1,250 @@
+package com.sismics.docs.fragment;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.widget.SwipeRefreshLayout;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageButton;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.sismics.docs.R;
+import com.sismics.docs.activity.DocumentEditActivity;
+import com.sismics.docs.activity.DocumentViewActivity;
+import com.sismics.docs.adapter.DocListAdapter;
+import com.sismics.docs.event.DocumentAddEvent;
+import com.sismics.docs.event.DocumentDeleteEvent;
+import com.sismics.docs.event.DocumentEditEvent;
+import com.sismics.docs.event.SearchEvent;
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.listener.RecyclerItemClickListener;
+import com.sismics.docs.resource.DocumentResource;
+import com.sismics.docs.ui.view.DividerItemDecoration;
+import com.sismics.docs.ui.view.EmptyRecyclerView;
+
+import org.greenrobot.eventbus.EventBus;
+import org.greenrobot.eventbus.Subscribe;
+import org.greenrobot.eventbus.ThreadMode;
+import org.json.JSONObject;
+
+/**
+ * @author bgamard.
+ */
+public class DocListFragment extends Fragment {
+    /**
+     * Documents adapter.
+     */
+    private DocListAdapter adapter;
+
+    /**
+     * Search query.
+     */
+    private String query;
+
+    /**
+     * Request code of adding document.
+     */
+    private static final int REQUEST_CODE_ADD_DOCUMENT = 1;
+
+    // View cache
+    private EmptyRecyclerView recyclerView;
+    private SwipeRefreshLayout swipeRefreshLayout;
+
+    // Infinite scrolling things
+    private boolean loading = true;
+    private int previousTotal = 0;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        final View view = inflater.inflate(R.layout.doc_list_fragment, container, false);
+
+        // Configure the RecyclerView
+        recyclerView = (EmptyRecyclerView) view.findViewById(R.id.docList);
+        adapter = new DocListAdapter();
+        recyclerView.setAdapter(adapter);
+        recyclerView.setHasFixedSize(true);
+        recyclerView.setLongClickable(true);
+        recyclerView.addItemDecoration(new DividerItemDecoration(getResources().getDrawable(R.drawable.abc_list_divider_mtrl_alpha)));
+
+        // Configure the LayoutManager
+        final LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
+        recyclerView.setLayoutManager(layoutManager);
+
+        // Configure the swipe refresh layout
+        swipeRefreshLayout = (SwipeRefreshLayout) view.findViewById(R.id.swipeRefreshLayout);
+        swipeRefreshLayout.setColorSchemeResources(android.R.color.holo_blue_bright,
+                android.R.color.holo_green_light,
+                android.R.color.holo_orange_light,
+                android.R.color.holo_red_light);
+        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
+            @Override
+            public void onRefresh() {
+                loadDocuments(view, true);
+            }
+        });
+
+        // Document opening
+        recyclerView.addOnItemTouchListener(new RecyclerItemClickListener(getActivity(), new RecyclerItemClickListener.OnItemClickListener() {
+            @Override
+            public void onItemClick(View view, int position) {
+                JSONObject document = adapter.getItemAt(position);
+                if (document != null) {
+                    openDocument(document);
+                }
+            }
+        }));
+
+        // Infinite scrolling
+        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
+            @Override
+            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
+                super.onScrolled(recyclerView, dx, dy);
+
+                int visibleItemCount = recyclerView.getChildCount();
+                int totalItemCount = layoutManager.getItemCount();
+                int firstVisibleItem = layoutManager.findFirstVisibleItemPosition();
+
+                if (loading) {
+                    if (totalItemCount > previousTotal) {
+                        loading = false;
+                        previousTotal = totalItemCount;
+                    }
+                }
+                if (!loading && totalItemCount - visibleItemCount <= firstVisibleItem + 3) {
+                    loadDocuments(getView(), false);
+                    loading = true;
+                }
+            }
+        });
+
+        // Add document button
+        ImageButton addDocumentButton = (ImageButton) view.findViewById(R.id.addDocumentButton);
+        addDocumentButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Intent intent = new Intent(getActivity(), DocumentEditActivity.class);
+                startActivityForResult(intent, REQUEST_CODE_ADD_DOCUMENT);
+            }
+        });
+
+        // Grab the documents
+        loadDocuments(view, true);
+
+        EventBus.getDefault().register(this);
+        return view;
+    }
+
+    @Override
+    public void onDestroyView() {
+        EventBus.getDefault().unregister(this);
+        super.onDestroyView();
+    }
+
+    /**
+     * A search event has been fired.
+     *
+     * @param event Search event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(SearchEvent event) {
+        query = event.getQuery();
+        loadDocuments(getView(), true);
+    }
+
+    /**
+     * A document edit event has been fired.
+     *
+     * @param event Document edit event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(DocumentEditEvent event) {
+        adapter.updateDocument(event.getDocument());
+    }
+
+    /**
+     * A document delete event has been fired.
+     *
+     * @param event Document delete event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(DocumentDeleteEvent event) {
+        adapter.deleteDocument(event.getDocumentId());
+    }
+
+    /**
+     * A document add event has been fired.
+     *
+     * @param event Document add event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(DocumentAddEvent event) {
+        // Refresh the list, maybe the new document fit in it
+        loadDocuments(getView(), true);
+
+        // Open the newly created document
+        openDocument(event.getDocument());
+    }
+
+    /**
+     * Open a document.
+     *
+     * @param document Document to open
+     */
+    private void openDocument(JSONObject document) {
+        Intent intent = new Intent(getActivity(), DocumentViewActivity.class);
+        intent.putExtra("document", document.toString());
+        startActivity(intent);
+    }
+
+    /**
+     * Refresh the document list.
+     *
+     * @param view View
+     * @param reset If true, reload the documents
+     */
+    private void loadDocuments(final View view, final boolean reset) {
+        if (view == null) return;
+        final View progressBar = view.findViewById(R.id.progressBar);
+        final TextView documentsEmptyView = (TextView) view.findViewById(R.id.documentsEmptyView);
+
+        if (reset) {
+            loading = true;
+            previousTotal = 0;
+            adapter.clearDocuments();
+        } else {
+            swipeRefreshLayout.setRefreshing(true);
+        }
+
+        recyclerView.setEmptyView(progressBar);
+
+        DocumentResource.list(getActivity(), reset ? 0 : adapter.getItemCount(), query, new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject response) {
+                adapter.addDocuments(response.optJSONArray("documents"));
+                documentsEmptyView.setText(R.string.no_documents);
+                recyclerView.setEmptyView(documentsEmptyView);
+            }
+
+            @Override
+            public void onFailure(JSONObject response, Exception e) {
+                documentsEmptyView.setText(R.string.error_loading_documents);
+                recyclerView.setEmptyView(documentsEmptyView);
+
+                if (!reset) {
+                    // We are loading a new page, so the empty view won't be visible, pop a toast
+                    Toast.makeText(getActivity(), R.string.error_loading_documents, Toast.LENGTH_SHORT).show();
+                }
+            }
+
+            @Override
+            public void onFinish() {
+                swipeRefreshLayout.setRefreshing(false);
+            }
+        });
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/fragment/DocShareFragment.java

@@ -0,0 +1,199 @@
+package com.sismics.docs.fragment;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.v4.app.DialogFragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ListView;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.sismics.docs.R;
+import com.sismics.docs.adapter.ShareListAdapter;
+import com.sismics.docs.event.ShareDeleteEvent;
+import com.sismics.docs.event.ShareSendEvent;
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.resource.DocumentResource;
+import com.sismics.docs.resource.ShareResource;
+import com.sismics.docs.util.PreferenceUtil;
+
+import org.greenrobot.eventbus.EventBus;
+import org.greenrobot.eventbus.Subscribe;
+import org.greenrobot.eventbus.ThreadMode;
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+/**
+ * Document sharing dialog fragment.
+ *
+ * @author bgamard.
+ */
+public class DocShareFragment extends DialogFragment {
+    /**
+     * Document data.
+     */
+    private JSONObject document;
+
+    /**
+     * Document sharing dialog fragment.
+     *
+     * @param id Document ID
+     */
+    public static DocShareFragment newInstance(String id) {
+        DocShareFragment fragment = new DocShareFragment();
+        Bundle args = new Bundle();
+        args.putString("id", id);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
+
+        // Setup the view
+        LayoutInflater inflater = getActivity().getLayoutInflater();
+        View view = inflater.inflate(R.layout.document_share_dialog, null);
+        final Button shareAddButton = (Button) view.findViewById(R.id.shareAddButton);
+        final EditText shareNameEditText = (EditText) view.findViewById(R.id.shareNameEditText);
+
+        // Add a share
+        shareAddButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                shareNameEditText.setEnabled(false);
+                shareAddButton.setEnabled(false);
+
+                ShareResource.add(getActivity(), getArguments().getString("id"), shareNameEditText.getText().toString(),
+                        new HttpCallback() {
+                    @Override
+                    public void onSuccess(JSONObject response) {
+                        shareNameEditText.setText("");
+                        loadShares(getDialog().getWindow().getDecorView());
+                    }
+
+                    @Override
+                    public void onFailure(JSONObject json, Exception e) {
+                        Toast.makeText(getActivity(), R.string.error_adding_share, Toast.LENGTH_SHORT).show();
+                    }
+
+                    @Override
+                    public void onFinish() {
+                        shareNameEditText.setEnabled(true);
+                        shareAddButton.setEnabled(true);
+                    }
+                });
+            }
+        });
+
+        // Get the shares
+        loadShares(view);
+
+        // Build the dialog
+        builder.setView(view)
+                .setNegativeButton(R.string.close, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int id) {
+                        getDialog().cancel();
+                    }
+                });
+        return builder.create();
+    }
+
+    /**
+     * Load the shares.
+     *
+     * @param view View
+     */
+    private void loadShares(View view) {
+        if (isDetached()) return;
+
+        final ListView shareListView = (ListView) view.findViewById(R.id.shareListView);
+        final TextView shareEmptyView = (TextView) view.findViewById(R.id.shareEmptyView);
+        final ProgressBar shareProgressBar = (ProgressBar) view.findViewById(R.id.shareProgressBar);
+
+        shareListView.setEmptyView(shareProgressBar);
+        DocumentResource.get(getActivity(), getArguments().getString("id"), new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject response) {
+                document = response;
+                JSONArray acls = response.optJSONArray("acls");
+                shareProgressBar.setVisibility(View.GONE);
+                shareListView.setEmptyView(shareEmptyView);
+                shareListView.setAdapter(new ShareListAdapter(acls));
+            }
+
+            @Override
+            public void onFailure(JSONObject json, Exception e) {
+                getDialog().cancel();
+                Toast.makeText(getActivity(), R.string.error_loading_shares, Toast.LENGTH_SHORT).show();
+            }
+        });
+    }
+
+    /**
+     * A share delete event has been fired.
+     *
+     * @param event Share delete event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(ShareDeleteEvent event) {
+        ShareResource.delete(getActivity(), event.getId(), new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject response) {
+                loadShares(getDialog().getWindow().getDecorView());
+            }
+
+            @Override
+            public void onFailure(JSONObject json, Exception e) {
+                Toast.makeText(getActivity(), R.string.error_deleting_share, Toast.LENGTH_SHORT).show();
+            }
+        });
+    }
+
+    /**
+     * A share send event has been fired.
+     *
+     * @param event Share send event
+     */
+    @Subscribe(threadMode = ThreadMode.MAIN)
+    public void onEventMainThread(ShareSendEvent event) {
+        if (document == null) return;
+
+        // Build the share link
+        String serverUrl = PreferenceUtil.getServerUrl(getActivity());
+        String link = serverUrl + "/share.html#/share/" + document.optString("id") + "/" + event.getAcl().optString("id");
+
+        // Build the intent
+        Context context = getActivity();
+        Intent intent = new Intent();
+        intent.setAction(Intent.ACTION_SEND);
+        intent.putExtra(Intent.EXTRA_SUBJECT, document.optString("title"));
+        intent.putExtra(Intent.EXTRA_TEXT, link);
+        intent.setType("text/plain");
+
+        // Open the target chooser
+        context.startActivity(Intent.createChooser(intent, context.getText(R.string.send_share_to)));
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        EventBus.getDefault().register(this);
+    }
+
+    @Override
+    public void onDestroy() {
+        EventBus.getDefault().unregister(this);
+        super.onDestroy();
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/fragment/SearchFragment.java

@@ -0,0 +1,129 @@
+package com.sismics.docs.fragment;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.v4.app.DialogFragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.CheckBox;
+import android.widget.EditText;
+import android.widget.Spinner;
+
+import com.sismics.docs.R;
+import com.sismics.docs.adapter.LanguageAdapter;
+import com.sismics.docs.adapter.TagAutoCompleteAdapter;
+import com.sismics.docs.event.AdvancedSearchEvent;
+import com.sismics.docs.ui.view.DatePickerView;
+import com.sismics.docs.ui.view.TagsCompleteTextView;
+import com.sismics.docs.util.PreferenceUtil;
+import com.sismics.docs.util.SearchQueryBuilder;
+
+import org.greenrobot.eventbus.EventBus;
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Advanced search fragment.
+ *
+ * @author bgamard.
+ */
+public class SearchFragment extends DialogFragment {
+    /**
+     * Document sharing dialog fragment
+     */
+    public static SearchFragment newInstance() {
+        SearchFragment fragment = new SearchFragment();
+        Bundle args = new Bundle();
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
+
+        // Setup the view
+        LayoutInflater inflater = getActivity().getLayoutInflater();
+        View view = inflater.inflate(R.layout.search_dialog, null);
+        final EditText searchEditText = (EditText) view.findViewById(R.id.searchEditText);
+        final EditText fulltextEditText = (EditText) view.findViewById(R.id.fulltextEditText);
+        final EditText creatorEditText = (EditText) view.findViewById(R.id.creatorEditText);
+        final CheckBox sharedCheckbox = (CheckBox) view.findViewById(R.id.sharedCheckbox);
+        final Spinner languageSpinner = (Spinner) view.findViewById(R.id.languageSpinner);
+        final DatePickerView beforeDatePicker = (DatePickerView) view.findViewById(R.id.beforeDatePicker);
+        final DatePickerView afterDatePicker = (DatePickerView) view.findViewById(R.id.afterDatePicker);
+        final TagsCompleteTextView tagsEditText = (TagsCompleteTextView) view.findViewById(R.id.tagsEditText);
+
+        // Language spinner
+        LanguageAdapter languageAdapter = new LanguageAdapter(getActivity(), true);
+        languageSpinner.setAdapter(languageAdapter);
+
+        // Tags auto-complete
+        JSONObject tags = PreferenceUtil.getCachedJson(getActivity(), PreferenceUtil.PREF_CACHED_TAGS_JSON);
+        if (tags == null) {
+            Dialog dialog = builder.create();
+            dialog.cancel();
+            return dialog;
+        }
+        JSONArray tagArray = tags.optJSONArray("tags");
+
+        List<JSONObject> tagList = new ArrayList<>();
+        for (int i = 0; i < tagArray.length(); i++) {
+            tagList.add(tagArray.optJSONObject(i));
+        }
+
+        tagsEditText.allowDuplicates(false);
+        tagsEditText.setAdapter(new TagAutoCompleteAdapter(getActivity(), 0, tagList));
+
+        // Build the dialog
+        builder.setView(view)
+                .setPositiveButton(R.string.search, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int id) {
+                        // Build the simple criterias
+                        SearchQueryBuilder queryBuilder = new SearchQueryBuilder()
+                                .simpleSearch(searchEditText.getText().toString())
+                                .creator(creatorEditText.getText().toString())
+                                .shared(sharedCheckbox.isChecked())
+                                .language(((LanguageAdapter.Language) languageSpinner.getSelectedItem()).getId())
+                                .before(beforeDatePicker.getDate())
+                                .after(afterDatePicker.getDate());
+
+                        // Fulltext criteria
+                        String fulltextCriteria = fulltextEditText.getText().toString();
+                        if (!fulltextCriteria.trim().isEmpty()) {
+                            String[] criterias = fulltextCriteria.split(" ");
+                            for (String criteria : criterias) {
+                                queryBuilder.fulltextSearch(criteria);
+                            }
+                        }
+
+                        // Tags criteria
+                        for (Object object : tagsEditText.getObjects()) {
+                            JSONObject tag = (JSONObject) object;
+                            queryBuilder.tag(tag.optString("name"));
+                        }
+
+                        // Send the advanced search event
+                        EventBus.getDefault().post(new AdvancedSearchEvent(queryBuilder.build()));
+
+                        getDialog().cancel();
+                    }
+                })
+                .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int id) {
+                        getDialog().cancel();
+                    }
+                });
+        Dialog dialog = builder.create();
+        dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
+        return dialog;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/fragment/SettingsFragment.java

@@ -0,0 +1,88 @@
+package com.sismics.docs.fragment;
+
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.preference.ListPreference;
+import android.preference.Preference;
+import android.preference.PreferenceFragment;
+import android.preference.PreferenceManager;
+import android.provider.SearchRecentSuggestions;
+import android.widget.Toast;
+
+import com.sismics.docs.R;
+import com.sismics.docs.provider.RecentSuggestionsProvider;
+import com.sismics.docs.util.ApplicationUtil;
+import com.sismics.docs.util.OkHttpUtil;
+import com.sismics.docs.util.PreferenceUtil;
+
+/**
+ * Settings fragment.
+ *
+ * @author bgamard.
+ */
+public class SettingsFragment extends PreferenceFragment implements SharedPreferences.OnSharedPreferenceChangeListener {
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Load the preferences from an XML resource
+        addPreferencesFromResource(R.xml.preferences);
+
+        // Initialize summaries
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
+        onSharedPreferenceChanged(sharedPreferences, PreferenceUtil.PREF_CACHE_SIZE);
+
+
+        // Handle clearing the recent search history
+        Preference clearHistoryPref = findPreference("pref_clearHistory");
+        clearHistoryPref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+            @Override
+            public boolean onPreferenceClick(Preference preference) {
+                SearchRecentSuggestions suggestions = new SearchRecentSuggestions(getActivity(),
+                        RecentSuggestionsProvider.AUTHORITY, RecentSuggestionsProvider.MODE);
+                suggestions.clearHistory();
+                Toast.makeText(getActivity(), R.string.pref_clear_history_success, Toast.LENGTH_LONG).show();
+                return true;
+            }
+        });
+
+        // Handle clearing the cache
+        Preference clearCachePref = findPreference("pref_clearCache");
+        clearCachePref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+            @Override
+            public boolean onPreferenceClick(Preference preference) {
+                OkHttpUtil.clearCache(getActivity());
+                Toast.makeText(getActivity(), R.string.pref_clear_cache_success, Toast.LENGTH_LONG).show();
+                return true;
+            }
+        });
+
+        // Initialize static text preferences
+        Preference versionPref = findPreference("pref_version");
+        versionPref.setSummary(getString(R.string.version) + " " + ApplicationUtil.getVersionName(getActivity())
+                + " | " + getString(R.string.build) + " " + ApplicationUtil.getVersionCode(getActivity()));
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        getPreferenceManager().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
+
+    }
+
+    @Override
+    public void onPause() {
+        getPreferenceManager().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);
+        super.onPause();
+    }
+
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+        Preference pref = findPreference(key);
+        if (pref instanceof ListPreference) {
+            ListPreference listPref = (ListPreference) pref;
+            pref.setSummary(listPref.getEntry());
+        }
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/listener/CallbackListener.java

@@ -0,0 +1,10 @@
+package com.sismics.docs.listener;
+
+/**
+ * Simple listener.
+ * 
+ * @author bgamard
+ */
+public interface CallbackListener {
+    public void onComplete();
+}

docs-android/app/src/main/java/com/sismics/docs/listener/HttpCallback.java

@@ -0,0 +1,78 @@
+package com.sismics.docs.listener;
+
+import android.os.Handler;
+import android.os.Looper;
+
+import org.json.JSONObject;
+
+import java.io.IOException;
+
+import okhttp3.Call;
+import okhttp3.Callback;
+import okhttp3.Response;
+
+/**
+ * An HTTP callback.
+ *
+ * @author bgamard.
+ */
+public class HttpCallback {
+    public void onSuccess(JSONObject json) {
+        // Implement me
+    }
+
+    public void onFailure(JSONObject json, Exception e) {
+        // Implement me
+    }
+
+    public void onFinish() {
+        // Implement me
+    }
+
+    /**
+     * Build an OkHttp Callback from a HttpCallback.
+     *
+     * @param httpCallback HttpCallback
+     * @return OkHttp Callback
+     */
+    public static Callback buildOkHttpCallback(final HttpCallback httpCallback) {
+        return new Callback() {
+            @Override
+            public void onResponse(final Call call, final Response response) throws IOException {
+                final String body = response.body().string();
+
+                new Handler(Looper.getMainLooper()).post(new Runnable() {
+                    @Override
+                    public void run() {
+                        if (response.isSuccessful()) {
+                            try {
+                                httpCallback.onSuccess(new JSONObject(body));
+                            } catch (Exception e) {
+                                httpCallback.onFailure(null, e);
+                            }
+                        } else {
+                            try {
+                                httpCallback.onFailure(new JSONObject(body), null);
+                            } catch (Exception e) {
+                                httpCallback.onFailure(null, e);
+                            }
+                        }
+
+                        httpCallback.onFinish();
+                    }
+                });
+            }
+
+            @Override
+            public void onFailure(final Call call, final IOException e) {
+                new Handler(Looper.getMainLooper()).post(new Runnable() {
+                    @Override
+                    public void run() {
+                        httpCallback.onFailure(null, e);
+                        httpCallback.onFinish();
+                    }
+                });
+            }
+        };
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/listener/RecyclerItemClickListener.java

@@ -0,0 +1,42 @@
+package com.sismics.docs.listener;
+
+import android.content.Context;
+import android.support.v7.widget.RecyclerView;
+import android.view.GestureDetector;
+import android.view.MotionEvent;
+import android.view.View;
+
+
+public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {
+  private OnItemClickListener mListener;
+
+  public interface OnItemClickListener {
+    void onItemClick(View view, int position);
+  }
+
+  GestureDetector mGestureDetector;
+
+  public RecyclerItemClickListener(Context context, OnItemClickListener listener) {
+    mListener = listener;
+    mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
+      @Override public boolean onSingleTapUp(MotionEvent e) {
+        return true;
+      }
+    });
+  }
+
+  @Override
+  public boolean onInterceptTouchEvent(RecyclerView view, MotionEvent e) {
+    View childView = view.findChildViewUnder(e.getX(), e.getY());
+    if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
+      mListener.onItemClick(childView, view.getChildAdapterPosition(childView));
+    }
+    return false;
+  }
+
+  @Override
+  public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) { }
+
+  @Override
+  public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) { }
+}

docs-android/app/src/main/java/com/sismics/docs/model/application/ApplicationContext.java

@@ -0,0 +1,99 @@
+package com.sismics.docs.model.application;
+
+import android.app.Activity;
+import android.content.Context;
+
+import com.sismics.docs.listener.CallbackListener;
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.resource.UserResource;
+import com.sismics.docs.util.PreferenceUtil;
+
+import org.json.JSONObject;
+
+/**
+ * Global context of the application.
+ * 
+ * @author bgamard
+ */
+public class ApplicationContext {
+    /**
+     * Singleton's instance.
+     */
+    private static ApplicationContext applicationContext;
+    
+    /**
+     * Response of /user/info
+     */
+    private JSONObject userInfo;
+    
+    /**
+     * Private constructor.
+     */
+    private ApplicationContext() {
+    }
+    
+    /**
+     * Returns a singleton of ApplicationContext.
+     * 
+     * @return Singleton of ApplicationContext
+     */
+    public static ApplicationContext getInstance() {
+        if (applicationContext == null) {
+            applicationContext = new ApplicationContext();
+        }
+        return applicationContext;
+    }
+    
+    /**
+     * Returns true if current user is logged in.
+     *
+     * @return True if the current user is logged in
+     */
+    public boolean isLoggedIn() {
+        return userInfo != null && !userInfo.optBoolean("anonymous");
+    }
+
+    /**
+     * Getter of userInfo
+     *
+     * @return userInfo
+     */
+    public JSONObject getUserInfo() {
+        return userInfo;
+    }
+
+    /**
+     * Setter of userInfo
+     *
+     * @param json userInfo
+     */
+    public void setUserInfo(Context context, JSONObject json) {
+        this.userInfo = json;
+        PreferenceUtil.setCachedJson(context, PreferenceUtil.PREF_CACHED_USER_INFO_JSON, json);
+    }
+    
+    /**
+     * Asynchronously get user info.
+     *
+     * @param activity Activity
+     * @param callbackListener CallbackListener
+     */
+    public void fetchUserInfo(final Activity activity, final CallbackListener callbackListener) {
+        UserResource.info(activity.getApplicationContext(), new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject json) {
+                // Save data in application context
+                if (!json.optBoolean("anonymous", true)) {
+                    setUserInfo(activity.getApplicationContext(), json);
+                }
+            }
+
+            @Override
+            public void onFinish() {
+                if (callbackListener != null) {
+                    callbackListener.onComplete();
+                }
+            }
+        });
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/provider/RecentSuggestionsProvider.java

@@ -0,0 +1,17 @@
+package com.sismics.docs.provider;
+
+import android.content.SearchRecentSuggestionsProvider;
+
+/**
+ * Search recent suggestions provider.
+ *
+ * @author bgamard.
+ */
+public class RecentSuggestionsProvider extends SearchRecentSuggestionsProvider {
+    public final static String AUTHORITY = "com.sismics.docs.provider.RecentSuggestionsProvider";
+    public final static int MODE = DATABASE_MODE_QUERIES;
+
+    public RecentSuggestionsProvider() {
+        setupSuggestions(AUTHORITY, MODE);
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/resource/AuditLogResource.java

@@ -0,0 +1,38 @@
+package com.sismics.docs.resource;
+
+import android.content.Context;
+
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.util.OkHttpUtil;
+
+import okhttp3.HttpUrl;
+import okhttp3.Request;
+
+/**
+ * Access to /auditlog API.
+ * 
+ * @author bgamard
+ */
+public class AuditLogResource extends BaseResource {
+    /**
+     * GET /auditlog.
+     *
+     * @param context Context
+     * @param documentId Document ID
+     * @param callback Callback
+     */
+    public static void list(Context context, String documentId, HttpCallback callback) {
+        HttpUrl.Builder httpUrlBuilder = HttpUrl.parse(getApiUrl(context) + "/auditlog")
+                .newBuilder();
+        if (documentId != null) {
+            httpUrlBuilder.addQueryParameter("document", documentId);
+        }
+        Request request = new Request.Builder()
+                .url(httpUrlBuilder.build())
+                .get()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/resource/BaseResource.java

@@ -0,0 +1,28 @@
+package com.sismics.docs.resource;
+
+import android.content.Context;
+
+import com.sismics.docs.util.PreferenceUtil;
+
+/**
+ * Base class for API access.
+ * 
+ * @author bgamard
+ */
+public class BaseResource {
+    /**
+     * Returns cleaned API URL.
+     *
+     * @param context Context
+     * @return Cleaned API URL
+     */
+    protected static String getApiUrl(Context context) {
+        String serverUrl = PreferenceUtil.getServerUrl(context);
+        
+        if (serverUrl == null) {
+            return null;
+        }
+        
+        return serverUrl + "/api";
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/resource/CommentResource.java

@@ -0,0 +1,73 @@
+package com.sismics.docs.resource;
+
+import android.content.Context;
+
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.util.OkHttpUtil;
+
+import okhttp3.FormBody;
+import okhttp3.HttpUrl;
+import okhttp3.Request;
+
+
+/**
+ * Access to /comment API.
+ * 
+ * @author bgamard
+ */
+public class CommentResource extends BaseResource {
+    /**
+     * GET /comment/id.
+     *
+     * @param context Context
+     * @param documentId Document ID
+     * @param callback Callback
+     */
+    public static void list(Context context, String documentId, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/comment/" + documentId))
+                .get()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+
+    /**
+     * PUT /comment.
+     *
+     * @param context Context
+     * @param documentId Document ID
+     * @param content Comment content
+     * @param callback Callback
+     */
+    public static void add(Context context, String documentId, String content, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/comment"))
+                .put(new FormBody.Builder()
+                        .add("id", documentId)
+                        .add("content", content)
+                        .build())
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+
+    /**
+     * DELETE /comment/id.
+     *
+     * @param context Context
+     * @param commentId Comment ID
+     * @param callback Callback
+     */
+    public static void remove(Context context, String commentId, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/comment/" + commentId))
+                .delete()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/resource/DocumentResource.java

@@ -0,0 +1,141 @@
+package com.sismics.docs.resource;
+
+import android.content.Context;
+
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.util.OkHttpUtil;
+
+import java.util.Set;
+
+import okhttp3.FormBody;
+import okhttp3.HttpUrl;
+import okhttp3.Request;
+
+/**
+ * Access to /document API.
+ * 
+ * @author bgamard
+ */
+public class DocumentResource extends BaseResource {
+    /**
+     * GET /document/list.
+     *
+     * @param context Context
+     * @param offset Offset
+     * @param query Search query
+     * @param callback Callback
+     */
+    public static void list(Context context, int offset, String query, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/document/list")
+                        .newBuilder()
+                        .addQueryParameter("limit", "20")
+                        .addQueryParameter("offset", Integer.toString(offset))
+                        .addQueryParameter("sort_column", "3")
+                        .addQueryParameter("asc", "false")
+                        .addQueryParameter("search", query)
+                        .build())
+                .get()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+
+    /**
+     * GET /document/id.
+     *
+     * @param context Context
+     * @param id ID
+     * @param callback Callback
+     */
+    public static void get(Context context, String id, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/document/" + id))
+                .get()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+
+    /**
+     * DELETE /document/id.
+     *
+     * @param context Context
+     * @param id ID
+     * @param callback Callback
+     */
+    public static void delete(Context context, String id, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/document/" + id))
+                .delete()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+
+    /**
+     * PUT /document.
+     *
+     * @param context Context
+     * @param title Title
+     * @param description Description
+     * @param tagIdList Tags ID list
+     * @param language Language
+     * @param createDate Create date
+     * @param callback Callback
+     */
+    public static void add(Context context, String title, String description,
+                           Set<String> tagIdList, String language, long createDate, HttpCallback callback) {
+        FormBody.Builder formBuilder = new FormBody.Builder()
+                .add("title", title)
+                .add("description", description)
+                .add("language", language)
+                .add("create_date", Long.toString(createDate));
+        for( String tagId : tagIdList) {
+            formBuilder.add("tags", tagId);
+        }
+
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/document"))
+                .put(formBuilder.build())
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+
+    /**
+     * POST /document/id.
+     *
+     * @param context Context
+     * @param id ID
+     * @param title Title
+     * @param description Description
+     * @param tagIdList Tags ID list
+     * @param language Language
+     * @param createDate Create date
+     * @param callback Callback
+     */
+    public static void edit(Context context, String id, String title, String description,
+                           Set<String> tagIdList, String language, long createDate, HttpCallback callback) {
+        FormBody.Builder formBuilder = new FormBody.Builder()
+                .add("title", title)
+                .add("description", description)
+                .add("language", language)
+                .add("create_date", Long.toString(createDate));
+        for( String tagId : tagIdList) {
+            formBuilder.add("tags", tagId);
+        }
+
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/document/" + id))
+                .post(formBuilder.build())
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/resource/FileResource.java

@@ -0,0 +1,123 @@
+package com.sismics.docs.resource;
+
+import android.content.Context;
+
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.util.OkHttpUtil;
+
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import okhttp3.HttpUrl;
+import okhttp3.MediaType;
+import okhttp3.MultipartBody;
+import okhttp3.Request;
+import okhttp3.RequestBody;
+import okhttp3.Response;
+import okhttp3.internal.Util;
+import okio.BufferedSink;
+import okio.Okio;
+import okio.Source;
+
+
+/**
+ * Access to /file API.
+ * 
+ * @author bgamard
+ */
+public class FileResource extends BaseResource {
+    /**
+     * GET /file/list.
+     *
+     * @param context Context
+     * @param documentId Document ID
+     * @param callback Callback
+     */
+    public static void list(Context context, String documentId, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/file/list")
+                        .newBuilder()
+                        .addQueryParameter("id", documentId)
+                        .build())
+                .get()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+
+    /**
+     * DELETE /file/id.
+     *
+     * @param context Context
+     * @param id ID
+     * @param callback Callback
+     */
+    public static void delete(Context context, String id, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/file/" + id))
+                .delete()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+
+    /**
+     * PUT /file.
+     *
+     * @param context Context
+     * @param documentId Document ID
+     * @param is Input stream
+     * @param callback Callback
+     * @throws Exception
+     */
+    public static void addSync(Context context, String documentId, final InputStream is, HttpCallback callback) throws Exception {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/file"))
+                .put(new MultipartBody.Builder()
+                        .setType(MultipartBody.FORM)
+                        .addFormDataPart("id", documentId)
+                        .addFormDataPart("file", "file", new RequestBody() {
+                            @Override
+                            public MediaType contentType() {
+                                return MediaType.parse("application/octet-stream");
+                            }
+
+                            @Override
+                            public void writeTo(BufferedSink sink) throws IOException {
+                                Source source = Okio.source(is);
+                                try {
+                                    sink.writeAll(source);
+                                } finally {
+                                    Util.closeQuietly(source);
+                                }
+                            }
+                        })
+                        .build())
+                .build();
+        Response response = OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .execute();
+
+        // Call the right callback
+        final String body = response.body().string();
+        if (response.isSuccessful()) {
+            try {
+                callback.onSuccess(new JSONObject(body));
+            } catch (Exception e) {
+                callback.onFailure(null, e);
+            }
+        } else {
+            try {
+                callback.onFailure(new JSONObject(body), null);
+            } catch (Exception e) {
+                callback.onFailure(null, e);
+            }
+        }
+
+        callback.onFinish();
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/resource/ShareResource.java

@@ -0,0 +1,56 @@
+package com.sismics.docs.resource;
+
+import android.content.Context;
+
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.util.OkHttpUtil;
+
+import okhttp3.FormBody;
+import okhttp3.HttpUrl;
+import okhttp3.Request;
+
+
+/**
+ * Access to /tag API.
+ * 
+ * @author bgamard
+ */
+public class ShareResource extends BaseResource {
+    /**
+     * PUT /share.
+     *
+     * @param context Context
+     * @param documentId Document ID
+     * @param name Name
+     * @param callback Callback
+     */
+    public static void add(Context context, String documentId, String name, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/share"))
+                .put(new FormBody.Builder()
+                        .add("id", documentId)
+                        .add("name", name)
+                        .build())
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+
+    /**
+     * DELETE /share.
+     *
+     * @param context Context
+     * @param id ID
+     * @param callback Callback
+     */
+    public static void delete(Context context, String id, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/share/" + id))
+                .delete()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/resource/TagResource.java

@@ -0,0 +1,33 @@
+package com.sismics.docs.resource;
+
+import android.content.Context;
+
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.util.OkHttpUtil;
+
+import okhttp3.HttpUrl;
+import okhttp3.Request;
+
+
+/**
+ * Access to /tag API.
+ * 
+ * @author bgamard
+ */
+public class TagResource extends BaseResource {
+    /**
+     * GET /tag/list.
+     *
+     * @param context Context
+     * @param callback Callback
+     */
+    public static void list(Context context, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/tag/list"))
+                .get()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/resource/UserResource.java

@@ -0,0 +1,90 @@
+package com.sismics.docs.resource;
+
+import android.content.Context;
+
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.util.OkHttpUtil;
+
+import okhttp3.FormBody;
+import okhttp3.HttpUrl;
+import okhttp3.Request;
+
+/**
+ * Access to /user API.
+ * 
+ * @author bgamard
+ */
+public class UserResource extends BaseResource {
+
+    /**
+     * POST /user/login.
+     *
+     * @param context Context
+     * @param username Username
+     * @param password Password
+     * @param callback Callback
+     */
+    public static void login(Context context, String username, String password, String code, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/user/login"))
+                .post(new FormBody.Builder()
+                        .add("username", username)
+                        .add("password", password)
+                        .add("code", code)
+                        .add("remember", "true")
+                        .build())
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+
+    /**
+     * GET /user.
+     *
+     * @param context Context
+     * @param callback Callback
+     */
+    public static void info(Context context, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/user"))
+                .get()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+
+    /**
+     * GET /user/username.
+     *
+     * @param context Context
+     * param username Username
+     * @param callback Callback
+     */
+    public static void get(Context context, String username, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/user/" + username))
+                .get()
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+    
+    /**
+     * POST /user/logout.
+     *
+     * @param context Context
+     * @param callback Callback
+     */
+    public static void logout(Context context, HttpCallback callback) {
+        Request request = new Request.Builder()
+                .url(HttpUrl.parse(getApiUrl(context) + "/user/logout"))
+                .post(new FormBody.Builder().build())
+                .build();
+        OkHttpUtil.buildClient(context)
+                .newCall(request)
+                .enqueue(HttpCallback.buildOkHttpCallback(callback));
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/resource/cookie/PersistentCookieStore.java

@@ -0,0 +1,229 @@
+package com.sismics.docs.resource.cookie;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.text.TextUtils;
+import android.util.Log;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.net.CookieStore;
+import java.net.HttpCookie;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * A persistent cookie store which implements the Apache HttpClient CookieStore interface.
+ * Cookies are stored and will persist on the user's device between application sessions since they
+ * are serialized and stored in SharedPreferences.
+ */
+public class PersistentCookieStore implements CookieStore {
+
+    private static final String LOG_TAG = "PersistentCookieStore";
+    private static final String COOKIE_PREFS = "CookiePrefsFileOkHttp";
+    private static final String COOKIE_NAME_PREFIX = "cookie_okhttp_";
+
+    private final HashMap<String, ConcurrentHashMap<String, HttpCookie>> cookies;
+    private final SharedPreferences cookiePrefs;
+
+    /**
+     * Construct a persistent cookie store.
+     *
+     * @param context Context to attach cookie store to
+     */
+    public PersistentCookieStore(Context context) {
+        cookiePrefs = context.getSharedPreferences(COOKIE_PREFS, 0);
+        cookies = new HashMap<>();
+
+        // Load any previously stored cookies into the store
+        Map<String, ?> prefsMap = cookiePrefs.getAll();
+        for (Map.Entry<String, ?> entry : prefsMap.entrySet()) {
+            if (entry.getValue() != null && !((String) entry.getValue()).startsWith(COOKIE_NAME_PREFIX)) {
+                String[] cookieNames = TextUtils.split((String) entry.getValue(), ",");
+                for (String name : cookieNames) {
+                    String encodedCookie = cookiePrefs.getString(COOKIE_NAME_PREFIX + name, null);
+                    if (encodedCookie != null) {
+                        HttpCookie decodedCookie = decodeCookie(encodedCookie);
+                        if (decodedCookie != null) {
+                            if (!cookies.containsKey(entry.getKey()))
+                                cookies.put(entry.getKey(), new ConcurrentHashMap<String, HttpCookie>());
+                            cookies.get(entry.getKey()).put(name, decodedCookie);
+                        }
+                    }
+                }
+
+            }
+        }
+    }
+
+    @Override
+    public void add(URI uri, HttpCookie cookie) {
+        String name = getCookieToken(uri, cookie);
+
+        // Save cookie into local store, or remove if expired
+        if (!cookie.hasExpired()) {
+            if (!cookies.containsKey(uri.getHost()))
+                cookies.put(uri.getHost(), new ConcurrentHashMap<String, HttpCookie>());
+            cookies.get(uri.getHost()).put(name, cookie);
+        } else {
+            if (cookies.containsKey(uri.toString()))
+                cookies.get(uri.getHost()).remove(name);
+        }
+
+        // Save cookie into persistent store
+        SharedPreferences.Editor prefsWriter = cookiePrefs.edit();
+        prefsWriter.putString(uri.getHost(), TextUtils.join(",", cookies.get(uri.getHost()).keySet()));
+        prefsWriter.putString(COOKIE_NAME_PREFIX + name, encodeCookie(new SerializableHttpCookie(cookie)));
+        prefsWriter.apply();
+    }
+
+    protected String getCookieToken(URI uri, HttpCookie cookie) {
+        return cookie.getName() + cookie.getDomain();
+    }
+
+    @Override
+    public List<HttpCookie> get(URI uri) {
+        ArrayList<HttpCookie> ret = new ArrayList<>();
+        if (cookies.containsKey(uri.getHost()))
+            ret.addAll(cookies.get(uri.getHost()).values());
+        return ret;
+    }
+
+    @Override
+    public boolean removeAll() {
+        SharedPreferences.Editor prefsWriter = cookiePrefs.edit();
+        prefsWriter.clear();
+        prefsWriter.apply();
+        cookies.clear();
+        return true;
+    }
+
+
+    @Override
+    public boolean remove(URI uri, HttpCookie cookie) {
+        String name = getCookieToken(uri, cookie);
+
+        if (cookies.containsKey(uri.getHost()) && cookies.get(uri.getHost()).containsKey(name)) {
+            cookies.get(uri.getHost()).remove(name);
+
+            SharedPreferences.Editor prefsWriter = cookiePrefs.edit();
+            if (cookiePrefs.contains(COOKIE_NAME_PREFIX + name)) {
+                prefsWriter.remove(COOKIE_NAME_PREFIX + name);
+            }
+            prefsWriter.putString(uri.getHost(), TextUtils.join(",", cookies.get(uri.getHost()).keySet()));
+            prefsWriter.apply();
+
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    public List<HttpCookie> getCookies() {
+        ArrayList<HttpCookie> ret = new ArrayList<>();
+        for (String key : cookies.keySet())
+            ret.addAll(cookies.get(key).values());
+
+        return ret;
+    }
+
+    @Override
+    public List<URI> getURIs() {
+        ArrayList<URI> ret = new ArrayList<>();
+        for (String key : cookies.keySet())
+            try {
+                ret.add(new URI(key));
+            } catch (URISyntaxException e) {
+                e.printStackTrace();
+            }
+
+        return ret;
+    }
+
+    /**
+     * Serializes Cookie object into String
+     *
+     * @param cookie cookie to be encoded, can be null
+     * @return cookie encoded as String
+     */
+    protected String encodeCookie(SerializableHttpCookie cookie) {
+        if (cookie == null)
+            return null;
+        ByteArrayOutputStream os = new ByteArrayOutputStream();
+        try {
+            ObjectOutputStream outputStream = new ObjectOutputStream(os);
+            outputStream.writeObject(cookie);
+        } catch (IOException e) {
+            Log.d(LOG_TAG, "IOException in encodeCookie", e);
+            return null;
+        }
+
+        return byteArrayToHexString(os.toByteArray());
+    }
+
+    /**
+     * Returns cookie decoded from cookie string
+     *
+     * @param cookieString string of cookie as returned from http request
+     * @return decoded cookie or null if exception occured
+     */
+    protected HttpCookie decodeCookie(String cookieString) {
+        byte[] bytes = hexStringToByteArray(cookieString);
+        ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes);
+        HttpCookie cookie = null;
+        try {
+            ObjectInputStream objectInputStream = new ObjectInputStream(byteArrayInputStream);
+            cookie = ((SerializableHttpCookie) objectInputStream.readObject()).getCookie();
+        } catch (IOException e) {
+            Log.d(LOG_TAG, "IOException in decodeCookie", e);
+        } catch (ClassNotFoundException e) {
+            Log.d(LOG_TAG, "ClassNotFoundException in decodeCookie", e);
+        }
+
+        return cookie;
+    }
+
+    /**
+     * Using some super basic byte array &lt;-&gt; hex conversions so we don't have to rely on any
+     * large Base64 libraries. Can be overridden if you like!
+     *
+     * @param bytes byte array to be converted
+     * @return string containing hex values
+     */
+    protected String byteArrayToHexString(byte[] bytes) {
+        StringBuilder sb = new StringBuilder(bytes.length * 2);
+        for (byte element : bytes) {
+            int v = element & 0xff;
+            if (v < 16) {
+                sb.append('0');
+            }
+            sb.append(Integer.toHexString(v));
+        }
+        return sb.toString().toUpperCase(Locale.US);
+    }
+
+    /**
+     * Converts hex values from strings to byte arra
+     *
+     * @param hexString string of hex-encoded values
+     * @return decoded byte array
+     */
+    protected byte[] hexStringToByteArray(String hexString) {
+        int len = hexString.length();
+        byte[] data = new byte[len / 2];
+        for (int i = 0; i < len; i += 2) {
+            data[i / 2] = (byte) ((Character.digit(hexString.charAt(i), 16) << 4) + Character.digit(hexString.charAt(i + 1), 16));
+        }
+        return data;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/resource/cookie/SerializableHttpCookie.java

@@ -0,0 +1,55 @@
+package com.sismics.docs.resource.cookie;
+
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+import java.net.HttpCookie;
+
+public class SerializableHttpCookie implements Serializable {
+    private static final long serialVersionUID = 6374381323722046732L;
+
+    private transient final HttpCookie cookie;
+    private transient HttpCookie clientCookie;
+
+    public SerializableHttpCookie(HttpCookie cookie) {
+        this.cookie = cookie;
+    }
+
+    public HttpCookie getCookie() {
+        HttpCookie bestCookie = cookie;
+        if (clientCookie != null) {
+            bestCookie = clientCookie;
+        }
+        return bestCookie;
+    }
+
+    private void writeObject(ObjectOutputStream out) throws IOException {
+        out.writeObject(cookie.getName());
+        out.writeObject(cookie.getValue());
+        out.writeObject(cookie.getComment());
+        out.writeObject(cookie.getCommentURL());
+        out.writeObject(cookie.getDomain());
+        out.writeLong(cookie.getMaxAge());
+        out.writeObject(cookie.getPath());
+        out.writeObject(cookie.getPortlist());
+        out.writeInt(cookie.getVersion());
+        out.writeBoolean(cookie.getSecure());
+        out.writeBoolean(cookie.getDiscard());
+    }
+
+    private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
+        String name = (String) in.readObject();
+        String value = (String) in.readObject();
+        clientCookie = new HttpCookie(name, value);
+        clientCookie.setComment((String) in.readObject());
+        clientCookie.setCommentURL((String) in.readObject());
+        clientCookie.setDomain((String) in.readObject());
+        clientCookie.setMaxAge(in.readLong());
+        clientCookie.setPath((String) in.readObject());
+        clientCookie.setPortlist((String) in.readObject());
+        clientCookie.setVersion(in.readInt());
+        clientCookie.setSecure(in.readBoolean());
+        clientCookie.setDiscard(in.readBoolean());
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/service/FileUploadService.java

@@ -0,0 +1,138 @@
+package com.sismics.docs.service;
+
+import android.app.IntentService;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.PowerManager;
+import android.support.v4.app.NotificationCompat;
+import android.support.v4.app.NotificationCompat.Builder;
+import android.util.Log;
+
+import com.sismics.docs.R;
+import com.sismics.docs.event.FileAddEvent;
+import com.sismics.docs.listener.HttpCallback;
+import com.sismics.docs.resource.FileResource;
+
+import org.greenrobot.eventbus.EventBus;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import okhttp3.internal.Util;
+
+/**
+ * Service to upload a file to a document in the background.
+ *
+ * @author bgamard
+ */
+public class FileUploadService extends IntentService {
+    private static final String TAG = "FileUploadService";
+
+    private static final int UPLOAD_NOTIFICATION_ID = 1;
+    private static final int UPLOAD_NOTIFICATION_ID_DONE = 2;
+    public static final String PARAM_URI = "uri";
+    public static final String PARAM_DOCUMENT_ID = "documentId";
+
+    private NotificationManager notificationManager;
+    private Builder notification;
+    private PowerManager.WakeLock wakeLock;
+
+    public FileUploadService() {
+        super(FileUploadService.class.getName());
+    }
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+
+        notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
+        notification = new NotificationCompat.Builder(this);
+        PowerManager pm = (PowerManager) getSystemService(POWER_SERVICE);
+        wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);
+    }
+
+    @Override
+    protected void onHandleIntent(Intent intent) {
+        if (intent == null) {
+            return;
+        }
+
+        wakeLock.acquire();
+        try {
+            onStart();
+            handleFileUpload(intent.getStringExtra(PARAM_DOCUMENT_ID), (Uri) intent.getParcelableExtra(PARAM_URI));
+        } catch (Exception e) {
+            Log.e(TAG, "Error uploading the file", e);
+            onError();
+        } finally {
+            wakeLock.release();
+        }
+    }
+
+    /**
+     * Actually uploading the file.
+     *
+     * @param documentId Document ID
+     * @param uri Data URI
+     * @throws IOException
+     */
+    private void handleFileUpload(final String documentId, final Uri uri) throws Exception {
+        final InputStream is = getContentResolver().openInputStream(uri);
+        FileResource.addSync(this, documentId, is, new HttpCallback() {
+            @Override
+            public void onSuccess(JSONObject response) {
+                EventBus.getDefault().post(new FileAddEvent(documentId, response.optString("id")));
+                FileUploadService.this.onComplete();
+            }
+
+            @Override
+            public void onFailure(JSONObject json, Exception e) {
+                FileUploadService.this.onError();
+            }
+
+            @Override
+            public void onFinish() {
+                Util.closeQuietly(is);
+            }
+        });
+    }
+
+    /**
+     * On upload start.
+     */
+    private void onStart() {
+        notification.setContentTitle(getString(R.string.upload_notification_title))
+                .setContentText(getString(R.string.upload_notification_message))
+                .setContentIntent(PendingIntent.getBroadcast(this, 0, new Intent(), PendingIntent.FLAG_UPDATE_CURRENT))
+                .setSmallIcon(R.drawable.ic_file_upload_white_24dp)
+                .setProgress(100, 0, true)
+                .setOngoing(true);
+
+        startForeground(UPLOAD_NOTIFICATION_ID, notification.build());
+    }
+
+    /**
+     * On upload complete.
+     */
+    private void onComplete() {
+        stopForeground(true);
+    }
+
+    /**
+     * On upload error.
+     */
+    private void onError() {
+        stopForeground(false);
+
+        notification.setContentTitle(getString(R.string.upload_notification_title))
+                .setContentText(getString(R.string.upload_notification_error))
+                .setSmallIcon(R.drawable.ic_file_upload_white_24dp)
+                .setProgress(0, 0, false)
+                .setOngoing(false);
+
+        notificationManager.notify(UPLOAD_NOTIFICATION_ID_DONE, notification.build());
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/ui/form/Validable.java

@@ -0,0 +1,63 @@
+package com.sismics.docs.ui.form;
+
+import android.view.View;
+
+import com.sismics.docs.ui.form.validator.ValidatorType;
+
+public class Validable {
+
+    private final ValidatorType[] validatorTypes;
+
+    private View view;
+    
+    private boolean isValidated = false;
+
+    public Validable(ValidatorType... validatorTypes) {
+        this.validatorTypes = validatorTypes;
+    }
+
+    /**
+     * Getter of view.
+     *
+     * @return view
+     */
+    public View getView() {
+        return view;
+    }
+
+    /**
+     * Setter of view.
+     *
+     * @param view view
+     */
+    public void setView(View view) {
+        this.view = view;
+    }
+
+    /**
+     * Getter of isValidated.
+     *
+     * @return isValidated
+     */
+    public boolean isValidated() {
+        return isValidated;
+    }
+
+    /**
+     * Setter of isValidated.
+     *
+     * @param isValidated isValidated
+     */
+    public void setValidated(boolean isValidated) {
+        this.isValidated = isValidated;
+    }
+
+    /**
+     * Getter of validatorTypes.
+     *
+     * @return validatorTypes
+     */
+    public  ValidatorType[] getValidatorTypes() {
+        return validatorTypes;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/ui/form/Validator.java

@@ -0,0 +1,148 @@
+package com.sismics.docs.ui.form;
+
+import android.content.Context;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.View;
+import android.widget.EditText;
+
+import com.sismics.docs.listener.CallbackListener;
+import com.sismics.docs.ui.form.validator.ValidatorType;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Utility for form validation.
+ * 
+ * @author bgamard
+ */
+public class Validator {
+
+    /**
+     * List of validable elements.
+     */
+    private Map<EditText, Validable> validables = new HashMap<EditText, Validable>();
+    
+    /**
+     * Callback when the validation of one element has changed.
+     */
+    private CallbackListener onValidationChanged;
+    
+    /**
+     * True if the validator show validation errors.
+     */
+    private boolean showErrors;
+
+    /**
+     * Context.
+     */
+    private Context context;
+    
+    /**
+     * Constructor.
+     *
+     * @param showErrors True to display validation errors
+     */
+    public Validator(Context context, boolean showErrors) {
+        this.context = context;
+        this.showErrors = showErrors;
+    }
+    
+    /**
+     * Setter of onValidationChanged.
+     * @param onValidationChanged onValidationChanged
+     */
+    public void setOnValidationChanged(CallbackListener onValidationChanged) {
+        this.onValidationChanged = onValidationChanged;
+        onValidationChanged.onComplete();
+    }
+
+    /**
+     * Add a validable element.
+     *
+     * @param editText Edit text
+     * @param validatorTypes Validators
+     */
+    public void addValidable(final EditText editText, final ValidatorType... validatorTypes) {
+        final Validable validable = new Validable(validatorTypes);
+        validables.put(editText, validable);
+        
+        editText.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+                // NOP
+            }
+            
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+                // NOP
+            }
+            
+            @Override
+            public void afterTextChanged(Editable s) {
+                validate(editText, validable);
+            }
+        });
+    }
+    
+    /**
+     * Returns true if the element is validated.
+     *
+     * @param view View
+     * @return True if the element is validated
+     */
+    public boolean isValidated(View view) {
+        return validables.get(view).isValidated();
+    }
+
+    /**
+     * Validate a specific EditText.
+     *
+     * @param editText EditText
+     * @param validable Validable
+     */
+    private void validate(EditText editText, Validable validable) {
+        validable.setValidated(true);
+        for (ValidatorType validatorType : validable.getValidatorTypes()) {
+            if (!validatorType.validate(editText.getEditableText().toString())) {
+                if (showErrors) {
+                    editText.setError(validatorType.getErrorMessage(context));
+                }
+                validable.setValidated(false);
+                break;
+            }
+        }
+
+        if (validable.isValidated()) {
+            editText.setError(null);
+        }
+
+        if (onValidationChanged != null) {
+            onValidationChanged.onComplete();
+        }
+    }
+
+    /**
+     * Validate everything now.
+     */
+    public void validate() {
+        for (Map.Entry<EditText, Validable> entry : validables.entrySet()) {
+            validate(entry.getKey(), entry.getValue());
+        }
+    }
+
+    /**
+     * Returns true if all elements are validated.
+     *
+     * @return True if all elements are validated
+     */
+    public boolean isValidated() {
+        for (Validable validable : validables.values()) {
+            if (!validable.isValidated()) {
+                return false;
+            }
+        }
+        return true;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/ui/form/validator/Alphanumeric.java

@@ -0,0 +1,28 @@
+package com.sismics.docs.ui.form.validator;
+
+import android.content.Context;
+
+import com.sismics.docs.R;
+
+import java.util.regex.Pattern;
+
+/**
+ * Alphanumeric validator.
+ * 
+ * @author bgamard
+ */
+public class Alphanumeric implements ValidatorType {
+
+    private static Pattern ALPHANUMERIC_PATTERN = Pattern.compile("[a-zA-Z0-9_]+");
+    
+    @Override
+    public boolean validate(String text) {
+        return ALPHANUMERIC_PATTERN.matcher(text).matches();
+    }
+
+    @Override
+    public String getErrorMessage(Context context) {
+        return context.getString(R.string.validate_error_alphanumeric);
+    }
+
+}

docs-android/app/src/main/java/com/sismics/docs/ui/form/validator/Email.java

@@ -0,0 +1,30 @@
+package com.sismics.docs.ui.form.validator;
+
+import android.content.Context;
+
+import com.sismics.docs.R;
+
+import java.util.regex.Pattern;
+
+/**
+ * Email validator.
+ * 
+ * @author bgamard
+ */
+public class Email implements ValidatorType {
+
+    /**
+     * Pattern de validation.
+     */
+    private static Pattern EMAIL_PATTERN = Pattern.compile(".+@.+\\..+");
+    
+    @Override
+    public boolean validate(String text) {
+        return EMAIL_PATTERN.matcher(text).matches();
+    }
+
+    @Override
+    public String getErrorMessage(Context context) {
+        return context.getResources().getString(R.string.validate_error_email);
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/ui/form/validator/Length.java

@@ -0,0 +1,52 @@
+package com.sismics.docs.ui.form.validator;
+
+import android.content.Context;
+
+import com.sismics.docs.R;
+
+/**
+ * Text length validator.
+ * 
+ * @author bgamard
+ */
+public class Length implements ValidatorType {
+
+    /**
+     * Minimum length.
+     */
+    private int minLength = 0;
+    
+    /**
+     * Maximum length.
+     */
+    private int maxLength = 0;
+    
+    /**
+     * True if the last validation error was about a string too short.
+     */
+    private boolean tooShort; 
+    
+    /**
+     * Constructor.
+     * @param minLength Minimum length
+     * @param maxLength Maximum length
+     */
+    public Length(int minLength, int maxLength) {
+        this.minLength = minLength;
+        this.maxLength = maxLength;
+    }
+    
+    @Override
+    public boolean validate(String text) {
+        tooShort = text.trim().length() < minLength;
+        return text.trim().length() >= minLength && text.trim().length() <= maxLength;
+    }
+
+    @Override
+    public String getErrorMessage(Context context) {
+        if (tooShort) {
+            return context.getResources().getString(R.string.validate_error_length_min, minLength);
+        }
+        return context.getResources().getString(R.string.validate_error_length_max, maxLength);
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/ui/form/validator/Required.java

@@ -0,0 +1,24 @@
+package com.sismics.docs.ui.form.validator;
+
+import android.content.Context;
+
+import com.sismics.docs.R;
+
+/**
+ * Text presence validator.
+ * 
+ * @author bgamard
+ */
+public class Required implements ValidatorType {
+
+    @Override
+    public boolean validate(String text) {
+        return text.trim().length() != 0;
+    }
+
+    @Override
+    public String getErrorMessage(Context context) {
+        return context.getString(R.string.validate_error_required);
+    }
+
+}

docs-android/app/src/main/java/com/sismics/docs/ui/form/validator/ValidatorType.java

@@ -0,0 +1,25 @@
+package com.sismics.docs.ui.form.validator;
+
+import android.content.Context;
+
+/**
+ *  Interface for validation types.
+ * 
+ * @author bgamard
+ */
+public interface ValidatorType {
+
+    /**
+     * Returns true if the validator is validated.
+     * @param text
+     * @return
+     */
+    public boolean validate(String text);
+
+    /**
+     * Returns an error message.
+     * @param context
+     * @return
+     */
+    public String getErrorMessage(Context context);
+}

docs-android/app/src/main/java/com/sismics/docs/ui/view/DatePickerView.java

@@ -0,0 +1,70 @@
+package com.sismics.docs.ui.view;
+
+import android.app.DatePickerDialog;
+import android.content.Context;
+import android.text.format.DateFormat;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.DatePicker;
+import android.widget.TextView;
+
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
+
+/**
+ * Date picker widget.
+ *
+ * @author bgamard
+ */
+public class DatePickerView extends TextView implements DatePickerDialog.OnDateSetListener {
+
+    private Date date;
+
+    public DatePickerView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    public DatePickerView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setAttributes();
+    }
+
+    public DatePickerView(Context context) {
+        super(context);
+        setAttributes();
+    }
+
+    private void setAttributes() {
+        setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                final Calendar calendar = Calendar.getInstance();
+                if (date != null) {
+                    calendar.setTime(date);
+                }
+                new DatePickerDialog(
+                        DatePickerView.this.getContext(), DatePickerView.this,
+                        calendar.get(Calendar.YEAR),
+                        calendar.get(Calendar.MONTH),
+                        calendar.get(Calendar.DAY_OF_MONTH)).show();
+            }
+        });
+    }
+ 
+    @Override
+    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
+        Date date = new GregorianCalendar(year, monthOfYear, dayOfMonth).getTime();
+        setDate(date);
+    }
+
+    public void setDate(Date date) {
+        this.date = date;
+        String formattedDate = DateFormat.getDateFormat(getContext()).format(date);
+        setText(formattedDate);
+    }
+
+    public Date getDate() {
+        return date;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/ui/view/DividerItemDecoration.java

@@ -0,0 +1,81 @@
+package com.sismics.docs.ui.view;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.util.AttributeSet;
+import android.view.View;
+
+/**
+ * Divider item decoration for recycler view.
+ *
+ * @author bgamard
+ */
+public class DividerItemDecoration extends RecyclerView.ItemDecoration {
+
+    private Drawable mDivider;
+
+    public DividerItemDecoration(Context context, AttributeSet attrs) {
+        final TypedArray a = context.obtainStyledAttributes(attrs, new int [] { android.R.attr.listDivider });
+        mDivider = a.getDrawable(0);
+        a.recycle();
+    }
+
+    public DividerItemDecoration(Drawable divider) { mDivider = divider; }
+
+    @Override
+    public void getItemOffsets (Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
+        super.getItemOffsets(outRect, view, parent, state);
+        if (mDivider == null) return;
+        if (parent.getChildPosition(view) < 1) return;
+
+        if (getOrientation(parent) == LinearLayoutManager.VERTICAL) outRect.top = mDivider.getIntrinsicHeight();
+        else outRect.left = mDivider.getIntrinsicWidth();
+    }
+
+    @Override
+    public void onDrawOver(Canvas c, RecyclerView parent) {
+        if (mDivider == null) { super.onDrawOver(c, parent); return; }
+
+        if (getOrientation(parent) == LinearLayoutManager.VERTICAL) {
+            final int left = parent.getPaddingLeft();
+            final int right = parent.getWidth() - parent.getPaddingRight();
+            final int childCount = parent.getChildCount();
+
+            for (int i=1; i < childCount; i++) {
+                final View child = parent.getChildAt(i);
+                final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
+                final int size = mDivider.getIntrinsicHeight();
+                final int top = child.getTop() - params.topMargin;
+                final int bottom = top + size;
+                mDivider.setBounds(left, top, right, bottom);
+                mDivider.draw(c);
+            }
+        } else { //horizontal
+            final int top = parent.getPaddingTop();
+            final int bottom = parent.getHeight() - parent.getPaddingBottom();
+            final int childCount = parent.getChildCount();
+
+            for (int i=1; i < childCount; i++) {
+                final View child = parent.getChildAt(i);
+                final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
+                final int size = mDivider.getIntrinsicWidth();
+                final int left = child.getLeft() - params.leftMargin;
+                final int right = left + size;
+                mDivider.setBounds(left, top, right, bottom);
+                mDivider.draw(c);
+            }
+        }
+    }
+
+    private int getOrientation(RecyclerView parent) {
+        if (parent.getLayoutManager() instanceof LinearLayoutManager) {
+            LinearLayoutManager layoutManager = (LinearLayoutManager) parent.getLayoutManager();
+            return layoutManager.getOrientation();
+        } else throw new IllegalStateException("DividerItemDecoration can only be used with a LinearLayoutManager.");
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/ui/view/EmptyRecyclerView.java

@@ -0,0 +1,57 @@
+package com.sismics.docs.ui.view;
+
+import android.content.Context;
+import android.support.v7.widget.RecyclerView;
+import android.util.AttributeSet;
+import android.view.View;
+
+/**
+ * RecyclerView with empty view support.
+ * Thanks to https://gist.github.com/adelnizamutdinov/31c8f054d1af4588dc5c
+ *
+ * @author Nizamutdinov Adel
+ */
+public class EmptyRecyclerView extends RecyclerView {
+    private View emptyView;
+
+    public EmptyRecyclerView(Context context) { super(context); }
+
+    public EmptyRecyclerView(Context context, AttributeSet attrs) { super(context, attrs); }
+
+    public EmptyRecyclerView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    void checkIfEmpty() {
+        if (emptyView != null) {
+            emptyView.setVisibility(getAdapter().getItemCount() > 0 ? GONE : VISIBLE);
+        }
+    }
+
+    final AdapterDataObserver observer = new AdapterDataObserver() {
+        @Override public void onChanged() {
+            super.onChanged();
+            checkIfEmpty();
+        }
+    };
+
+    @Override public void setAdapter(Adapter adapter) {
+        final Adapter oldAdapter = getAdapter();
+        if (oldAdapter != null) {
+            oldAdapter.unregisterAdapterDataObserver(observer);
+        }
+        super.setAdapter(adapter);
+        if (adapter != null) {
+            adapter.registerAdapterDataObserver(observer);
+        }
+    }
+
+    public void setEmptyView(View emptyView) {
+        // Hide the current empty view
+        if (this.emptyView != null) {
+            this.emptyView.setVisibility(GONE);
+        }
+        this.emptyView = emptyView;
+        checkIfEmpty();
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/ui/view/FileViewPager.java

@@ -0,0 +1,33 @@
+package com.sismics.docs.ui.view;
+
+import android.content.Context;
+import android.support.v4.view.ViewPager;
+import android.util.AttributeSet;
+import android.view.View;
+
+import it.sephiroth.android.library.imagezoom.ImageViewTouch;
+
+/**
+ * ViewPager for files.
+ *
+ * @author bgamard.
+ */
+public class FileViewPager extends ViewPager {
+
+    public FileViewPager(Context context) {
+        super(context);
+    }
+
+    public FileViewPager(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    protected boolean canScroll(View v, boolean checkV, int dx, int x, int y) {
+        if (v instanceof ImageViewTouch) {
+            return ((ImageViewTouch) v).canScroll(dx);
+        } else {
+            return super.canScroll(v, checkV, dx, x, y);
+        }
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/ui/view/NonScrollListView.java

@@ -0,0 +1,33 @@
+package com.sismics.docs.ui.view;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.ViewGroup;
+import android.widget.ListView;
+
+/**
+ * Non-scrollable ListView.
+ * All items are visible from the start.
+ *
+ * @author http://stackoverflow.com/questions/18813296/non-scrollable-listview-inside-scrollview/24629341#24629341
+ */
+public class NonScrollListView extends ListView {
+
+    public NonScrollListView(Context context) {
+        super(context);
+    }
+    public NonScrollListView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+    public NonScrollListView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+    @Override
+    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+            int heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(
+                    Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
+            super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom);
+            ViewGroup.LayoutParams params = getLayoutParams();
+            params.height = getMeasuredHeight();    
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/ui/view/TagsCompleteTextView.java

@@ -0,0 +1,66 @@
+package com.sismics.docs.ui.view;
+
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.Color;
+import android.graphics.PorterDuff;
+import android.graphics.drawable.Drawable;
+import android.text.InputFilter;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.sismics.docs.R;
+import com.tokenautocomplete.TokenCompleteTextView;
+
+import org.json.JSONObject;
+
+/**
+ * Auto-complete text view displaying tags.
+ *
+ * @author bgamard
+ */
+public class TagsCompleteTextView extends TokenCompleteTextView {
+    public TagsCompleteTextView(Context context) {
+        super(context);
+        init();
+    }
+
+    public TagsCompleteTextView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    public TagsCompleteTextView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        init();
+    }
+
+    private void init() {
+        setFilters(new InputFilter[] {});
+    }
+
+    @Override
+    protected View getViewForObject(Object object) {
+        JSONObject tag = (JSONObject) object;
+
+        LayoutInflater inflater = (LayoutInflater)getContext().getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
+        View view = inflater.inflate(R.layout.tag_autocomplete_token, (ViewGroup) getParent(), false);
+        TextView textView = (TextView) view.findViewById(R.id.tagTextView);
+        textView.setText(tag.optString("name"));
+
+        Drawable drawable = textView.getCompoundDrawables()[0].mutate();
+        drawable.setColorFilter(Color.parseColor(tag.optString("color")), PorterDuff.Mode.MULTIPLY);
+        textView.setCompoundDrawables(drawable, null, null, null);
+        textView.invalidate();
+
+        return view;
+    }
+
+    @Override
+    protected Object defaultObject(String completionText) {
+        return completionText;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/util/ApplicationUtil.java

@@ -0,0 +1,42 @@
+package com.sismics.docs.util;
+
+import android.content.Context;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager.NameNotFoundException;
+
+/**
+ * Utility class on general application data.
+ * 
+ * @author bgamard
+ */
+public class ApplicationUtil {
+    /**
+     * Returns version name.
+     * 
+     * @param context Context
+     * @return Nom de la version
+     */
+    public static String getVersionName(Context context) {
+        try {
+            PackageInfo packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
+            return packageInfo.versionName;
+        } catch (NameNotFoundException e) {
+            return "";
+        }
+    }
+
+    /**
+     * Returns version number.
+     * 
+     * @param context Context
+     * @return Numéro de version
+     */
+    public static int getVersionCode(Context context) {
+        try {
+            PackageInfo packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
+            return packageInfo.versionCode;
+        } catch (NameNotFoundException e) {
+            return 0;
+        }
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/util/DialogUtil.java

@@ -0,0 +1,39 @@
+package com.sismics.docs.util;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+
+import com.sismics.docs.R;
+
+/**
+ * Utility class for dialogs.
+ * 
+ * @author bgamard
+ */
+public class DialogUtil {
+    /**
+     * Create a dialog with an OK button.
+     *
+     * @param activity Context activity
+     * @param title Dialog title
+     * @param message Dialog message
+     */
+    public static void showOkDialog(Activity activity, int title, int message) {
+        if (activity == null || activity.isFinishing()) {
+            return;
+        }
+        
+        AlertDialog.Builder builder = new AlertDialog.Builder(activity);
+        
+        builder.setTitle(title)
+        .setMessage(message)
+        .setCancelable(true)
+        .setNeutralButton(R.string.ok, new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int id) {
+                dialog.dismiss();
+            }
+        }).create().show();
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/util/NetworkUtil.java

@@ -0,0 +1,43 @@
+package com.sismics.docs.util;
+
+import android.Manifest;
+import android.app.Activity;
+import android.app.DownloadManager;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.net.Uri;
+import android.os.Environment;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
+
+/**
+ * Utility class for network actions.
+ *
+ * @author bgamard.
+ */
+public class NetworkUtil {
+    /**
+     * Download a file using Android download manager.
+     *
+     * @param url URL to download
+     * @param fileName Destination file name
+     * @param title Notification title
+     * @param description Notification description
+     */
+    public static void downloadFile(Activity activity, String url, String fileName, String title, String description) {
+        if (ContextCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
+            ActivityCompat.requestPermissions(activity, new String[] { Manifest.permission.WRITE_EXTERNAL_STORAGE }, 0);
+            return;
+        }
+
+        String authToken = PreferenceUtil.getAuthToken(activity);
+        DownloadManager downloadManager = (DownloadManager) activity.getSystemService(Context.DOWNLOAD_SERVICE);
+        DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
+        request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
+        request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, fileName);
+        request.addRequestHeader("Cookie", "auth_token=" + authToken);
+        request.setTitle(title);
+        request.setDescription(description);
+        downloadManager.enqueue(request);
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/util/OkHttpUtil.java

@@ -0,0 +1,187 @@
+package com.sismics.docs.util;
+
+import android.content.Context;
+import android.os.Build;
+import android.util.Log;
+
+import com.jakewharton.picasso.OkHttp3Downloader;
+import com.sismics.docs.resource.cookie.PersistentCookieStore;
+import com.squareup.picasso.Picasso;
+
+import java.io.IOException;
+import java.net.CookieManager;
+import java.net.CookiePolicy;
+import java.security.cert.CertificateException;
+import java.util.Locale;
+import java.util.concurrent.TimeUnit;
+
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.X509TrustManager;
+
+import okhttp3.Cache;
+import okhttp3.Interceptor;
+import okhttp3.JavaNetCookieJar;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+
+/**
+ * Utilities for OkHttp.
+ *
+ * @author bgamard.
+ */
+public class OkHttpUtil {
+    /**
+     * OkHttp singleton client.
+     */
+    private static OkHttpClient okHttpClient = new OkHttpClient();
+
+    /**
+     * Singleton cache.
+     */
+    private static Cache cache = null;
+
+    /**
+     * User-Agent to use.
+     */
+    protected static String userAgent = null;
+
+    /**
+     * Accept-Language header.
+     */
+    protected static String acceptLanguage = null;
+
+    static {
+        // OkHttp configuration
+        try {
+            // Create a trust manager that does not validate certificate chains
+            final TrustManager[] trustAllCerts = new TrustManager[] {
+                    new X509TrustManager() {
+                        @Override
+                        public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
+                        }
+
+                        @Override
+                        public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
+                        }
+
+                        @Override
+                        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
+                            return null;
+                        }
+                    }
+            };
+
+            // Install the all-trusting trust manager
+            final SSLContext sslContext = SSLContext.getInstance("TLS");
+            sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
+            final javax.net.ssl.SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
+
+            // Configure OkHttpClient
+            okHttpClient = okHttpClient.newBuilder()
+                    .connectTimeout(30, TimeUnit.SECONDS)
+                    .readTimeout(30, TimeUnit.SECONDS)
+                    .writeTimeout(30, TimeUnit.SECONDS)
+                    .sslSocketFactory(sslSocketFactory)
+                    .build();
+        } catch (Exception e) {
+            // NOP
+        }
+    }
+
+    /**
+     * Build a Picasso object with base config.
+     *
+     * @param context Context
+     * @return Picasso object
+     */
+    public static Picasso picasso(Context context) {
+        OkHttpClient okHttpClient = buildClient(context)
+                .newBuilder()
+                .addInterceptor(new Interceptor() {
+                    @Override
+                    public Response intercept(Interceptor.Chain chain) throws IOException { // Override cache configuration
+                        final Request original = chain.request();
+                        return chain.proceed(original.newBuilder()
+                                .header("Cache-Control", "max-age=" + (3600 * 24 * 365))
+                                .method(original.method(), original.body())
+                                .build());
+                    }
+                })
+                .cache(getCache(context))
+                .build();
+
+        Picasso picasso = new Picasso.Builder(context)
+                .downloader(new OkHttp3Downloader(okHttpClient))
+                .build();
+        picasso.setIndicatorsEnabled(false); // Debug stuff
+        return picasso;
+    }
+
+    /**
+     * Get and eventually build the singleton cache.
+     *
+     * @param context Context
+     * @return Cache
+     */
+    private static Cache getCache(Context context) {
+        if (cache == null) {
+            cache = new Cache(context.getCacheDir(),
+                    PreferenceUtil.getIntegerPreference(context, PreferenceUtil.PREF_CACHE_SIZE, 0) * 1000000);
+        }
+        return cache;
+    }
+
+    /**
+     * Clear the HTTP cache.
+     *
+     * @param context Context
+     */
+    public static void clearCache(Context context) {
+        Cache cache = getCache(context);
+        try {
+            cache.evictAll();
+        } catch (IOException e) {
+            Log.e("OKHttpUtil", "Error clearing cache", e);
+        }
+    }
+
+    /**
+     * Build an OkHttpClient.
+     *
+     * @param context Context
+     * @return OkHttpClient
+     */
+    public static OkHttpClient buildClient(final Context context) {
+        // One-time header computation
+        if (userAgent == null) {
+            userAgent = "Sismics Docs Android " + ApplicationUtil.getVersionName(context) + "/Android " + Build.VERSION.RELEASE + "/" + Build.MODEL;
+        }
+
+        if (acceptLanguage == null) {
+            Locale locale = Locale.getDefault();
+            acceptLanguage = locale.getLanguage() + "_" + locale.getCountry();
+        }
+
+        // Cookie handling
+        PersistentCookieStore cookieStore = new PersistentCookieStore(context);
+        CookieManager cookieManager = new CookieManager(cookieStore, CookiePolicy.ACCEPT_ALL);
+
+        // Runtime configuration
+        return okHttpClient.newBuilder()
+                .cookieJar(new JavaNetCookieJar(cookieManager))
+                .addNetworkInterceptor(new Interceptor() {
+                    @Override
+                    public Response intercept(Chain chain) throws IOException {
+                        Request original = chain.request();
+                        return chain.proceed(original.newBuilder()
+                                .header("User-Agent", userAgent)
+                                .header("Accept-Language", acceptLanguage)
+                                .method(original.method(), original.body())
+                                .build());
+                    }
+                })
+                .build();
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/util/PreferenceUtil.java

@@ -0,0 +1,186 @@
+package com.sismics.docs.util;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
+import android.preference.PreferenceManager;
+
+import com.sismics.docs.resource.cookie.PersistentCookieStore;
+
+import org.json.JSONObject;
+
+import java.net.HttpCookie;
+import java.util.List;
+
+/**
+ * Utility class on preferences.
+ * 
+ * @author bgamard
+ */
+public class PreferenceUtil {
+
+    public static final String PREF_CACHED_USER_INFO_JSON = "pref_cachedUserInfoJson";
+    public static final String PREF_CACHED_TAGS_JSON = "pref_cachedTagsJson";
+    public static final String PREF_SERVER_URL = "pref_ServerUrl";
+    public static final String PREF_CACHE_SIZE = "pref_cacheSize";
+
+    /**
+     * Returns a preference of boolean type.
+     *
+     * @param context Context
+     * @param key Shared preference key
+     * @return Shared preference value
+     */
+    public static boolean getBooleanPreference(Context context, String key, boolean defaultValue) {
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
+        return sharedPreferences.getBoolean(key, defaultValue);
+    }
+    
+    /**
+     * Returns a preference of string type.
+     *
+     * @param context Context
+     * @param key Shared preference key
+     * @return Shared preference value
+     */
+    public static String getStringPreference(Context context, String key) {
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
+        return sharedPreferences.getString(key, null);
+    }
+    
+    /**
+     * Returns a preference of integer type.
+     *
+     * @param context Context
+     * @param key Shared preference key
+     * @return Shared preference value
+     */
+    public static int getIntegerPreference(Context context, String key, int defaultValue) {
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
+        try {
+            String pref = sharedPreferences.getString(key, "");
+            try {
+                return Integer.parseInt(pref);
+            } catch (NumberFormatException e) {
+                return defaultValue;
+            }
+        } catch (ClassCastException e) {
+            return sharedPreferences.getInt(key, defaultValue);
+        }
+        
+    }
+    
+    /**
+     * Update JSON cache.
+     *
+     * @param context Context
+     * @param key Shared preference key
+     * @param json JSON data
+     */
+    public static void setCachedJson(Context context, String key, JSONObject json) {
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
+        sharedPreferences.edit().putString(key, json != null ? json.toString() : null).apply();
+    }
+    
+    /**
+     * Returns a JSON cache.
+     *
+     * @param context Context
+     * @param key Shared preference key
+     * @return JSON data
+     */
+    public static JSONObject getCachedJson(Context context, String key) {
+        try {
+            return new JSONObject(getStringPreference(context, key));
+        } catch (Exception e) {
+            // The cache is not parsable, clean this up
+            setCachedJson(context, key, null);
+            return null;
+        }
+    }
+    
+    /**
+     * Update server URL.
+     *
+     * @param context Context
+     */
+    public static void setServerUrl(Context context, String serverUrl) {
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
+        sharedPreferences.edit().putString(PREF_SERVER_URL, serverUrl).apply();
+    }
+    
+    /**
+     * Empty user caches.
+     *
+     * @param context Context
+     */
+    public static void resetUserCache(Context context) {
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
+        Editor editor = sharedPreferences.edit();
+        editor
+                .putString(PREF_CACHED_USER_INFO_JSON, null)
+                .putString(PREF_CACHED_TAGS_JSON, null)
+                .apply();
+    }
+    
+    /**
+     * Returns auth token cookie from shared preferences.
+     *
+     * @param context Context
+     * @return Auth token
+     */
+    public static String getAuthToken(Context context) {
+        PersistentCookieStore cookieStore = new PersistentCookieStore(context);
+        List<HttpCookie> cookieList = cookieStore.getCookies();
+        for (HttpCookie cookie : cookieList) {
+            if (cookie.getName().equals("auth_token")) {
+                return cookie.getValue();
+            }
+        }
+        
+        return null;
+    }
+
+    /**
+     * Clear all auth tokens.
+     *
+     * @param context Context
+     */
+    public static void clearAuthToken(Context context) {
+        PersistentCookieStore cookieStore = new PersistentCookieStore(context);
+        cookieStore.removeAll();
+    }
+
+    /**
+     * Returns cleaned server URL.
+     *
+     * @param context Context
+     * @return Server URL
+     */
+    public static String getServerUrl(Context context) {
+        String serverUrl = getStringPreference(context, PREF_SERVER_URL);
+        if (serverUrl == null) {
+            return null;
+        }
+        
+        // Trim
+        serverUrl = serverUrl.trim();
+        
+        if (!serverUrl.startsWith("http")) {
+            // Try to add http
+            serverUrl = "http://" + serverUrl;
+        }
+        
+        if (serverUrl.endsWith("/")) {
+            // Delete last /
+            serverUrl = serverUrl.substring(0, serverUrl.length() - 1);
+        }
+        
+        // Remove /api
+        if (serverUrl.endsWith("/api")) {
+            serverUrl = serverUrl.substring(0, serverUrl.length() - 4);
+        }
+        
+        return serverUrl;
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/util/SearchQueryBuilder.java

@@ -0,0 +1,166 @@
+package com.sismics.docs.util;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ * Search query builder.
+ *
+ * @author bgamard.
+ */
+public class SearchQueryBuilder {
+    /**
+     * The query.
+     */
+    private StringBuilder query;
+
+    /**
+     * Search separator.
+     */
+    private static String SEARCH_SEPARATOR = " ";
+
+    /**
+     * Search date format.
+     */
+    private SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd");
+
+    /**
+     * Build a query.
+     */
+    public SearchQueryBuilder() {
+        query = new StringBuilder();
+    }
+
+    /**
+     * Add a simple search criteria.
+     *
+     * @param simpleSearch Simple search criteria
+     * @return The builder
+     */
+    public SearchQueryBuilder simpleSearch(String simpleSearch) {
+        if (isValid(simpleSearch)) {
+            query.append(SEARCH_SEPARATOR).append(simpleSearch);
+        }
+        return this;
+    }
+
+    /**
+     * Add a fulltext search criteria.
+     *
+     * @param fulltextSearch Fulltext search criteria
+     * @return The builder
+     */
+    public SearchQueryBuilder fulltextSearch(String fulltextSearch) {
+        if (isValid(fulltextSearch)) {
+            query.append(SEARCH_SEPARATOR)
+                    .append("full:")
+                    .append(fulltextSearch);
+        }
+        return this;
+    }
+
+    /**
+     * Add a creator criteria.
+     *
+     * @param creator Creator criteria
+     * @return The builder
+     */
+    public SearchQueryBuilder creator(String creator) {
+        if (isValid(creator)) {
+            query.append(SEARCH_SEPARATOR)
+                    .append("by:")
+                    .append(creator);
+        }
+        return this;
+    }
+
+    /**
+     * Add a language criteria.
+     *
+     * @param language Language criteria
+     * @return The builder
+     */
+    public SearchQueryBuilder language(String language) {
+        if (isValid(language)) {
+            query.append(SEARCH_SEPARATOR)
+                    .append("lang:")
+                    .append(language);
+        }
+        return this;
+    }
+
+    /**
+     * Add a shared criteria.
+     *
+     * @param shared Shared criteria
+     * @return The builder
+     */
+    public SearchQueryBuilder shared(boolean shared) {
+        if (shared) {
+            query.append(SEARCH_SEPARATOR).append("shared:yes");
+        }
+        return this;
+    }
+
+    /**
+     * Add a tag criteria.
+     *
+     * @param tag Tag criteria
+     * @return The builder
+     */
+    public SearchQueryBuilder tag(String tag) {
+        query.append(SEARCH_SEPARATOR)
+                .append("tag:")
+                .append(tag);
+        return this;
+    }
+
+    /**
+     * Add a before date criteria.
+     *
+     * @param before Before date criteria
+     * @return The builder
+     */
+    public SearchQueryBuilder before(Date before) {
+        if (before != null) {
+            query.append(SEARCH_SEPARATOR)
+                    .append("before:")
+                    .append(DATE_FORMAT.format(before));
+        }
+        return this;
+    }
+
+    /**
+     * Add an after date criteria.
+     *
+     * @param after After date criteria
+     * @return The builder
+     */
+    public SearchQueryBuilder after(Date after) {
+        if (after != null) {
+            query.append(SEARCH_SEPARATOR)
+                    .append("after:")
+                    .append(DATE_FORMAT.format(after));
+        }
+        return this;
+    }
+
+    /**
+     * Build the query.
+     *
+     * @return The query
+     */
+    public String build() {
+        return query.toString();
+    }
+
+    /**
+     * Return true if the search criteria is valid.
+     *
+     * @param criteria Search criteria
+     * @return True if the search criteria is valid
+     */
+    private boolean isValid(String criteria) {
+        return criteria != null && !criteria.trim().isEmpty();
+    }
+}

docs-android/app/src/main/java/com/sismics/docs/util/SpannableUtil.java

@@ -0,0 +1,85 @@
+package com.sismics.docs.util;
+
+import android.graphics.Color;
+import android.text.Spannable;
+import android.text.SpannableStringBuilder;
+import android.text.Spanned;
+import android.text.style.BackgroundColorSpan;
+import android.text.style.ForegroundColorSpan;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+/**
+ * Utility class for spannable.
+ *
+ * @author bgamard.
+ */
+public class SpannableUtil {
+    /**
+     * Create a colored spannable from tags.
+     *
+     * @param tags Tags
+     * @return Colored spannable
+     */
+    public static Spannable buildSpannableTags(JSONArray tags) {
+        return buildSpannable(tags, "name", "color");
+    }
+
+    /**
+     * Create a spannable for contributors.
+     *
+     * @param contributors Contributors
+     * @return Spannable
+     */
+    public static Spannable buildSpannableContributors(JSONArray contributors) {
+        return buildSpannable(contributors, "username", null);
+    }
+
+    /**
+     * Create a spannable for relations.
+     *
+     * @param relations Relations
+     * @return Spannable
+     */
+    public static Spannable buildSpannableRelations(JSONArray relations) {
+        return buildSpannable(relations, "title", null);
+    }
+
+    /**
+     * Create a spannable from a JSONArray.
+     *
+     * @param array JSONArray
+     * @param valueName Name of the value part
+     * @param colorName Name of the color part (optional)
+     * @return Spannable
+     */
+    private static Spannable buildSpannable(JSONArray array, String valueName, String colorName) {
+        SpannableStringBuilder builder = new SpannableStringBuilder();
+
+        for (int i = 0; i < array.length(); i++) {
+            final JSONObject tag = array.optJSONObject(i);
+            int start = builder.length();
+            builder.append(" ").append(tag.optString(valueName)).append(" ");
+            builder.setSpan(new ForegroundColorSpan(Color.WHITE), start, builder.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+            builder.setSpan(new BackgroundColorSpan(Color.parseColor(tag.optString(colorName, "#5bc0de"))), start, builder.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+            /*
+            TODO : Make tags, relations and contributors clickable
+            builder.setSpan(new ClickableSpan() {
+                @Override
+                public void onClick(View widget) {
+                }
+
+                @Override
+                public void updateDrawState(TextPaint ds) {
+                    super.updateDrawState(ds);
+                    ds.setColor(Color.WHITE);
+                    ds.setUnderlineText(false);
+                }
+            }, start, builder.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);*/
+            builder.append(" ");
+        }
+
+        return builder;
+    }
+}