Merge remote-tracking branch 'origin/master' into highlightSearch

browser/components/CodeEditor.js

@@ -81,6 +81,7 @@ export default class CodeEditor extends React.Component {
         }
       }
     })
+    this.scrollHandler = _.debounce(this.handleScroll.bind(this), 100, {leading: false, trailing: true})
   }
 
   componentDidMount () {
@@ -144,6 +145,7 @@ export default class CodeEditor extends React.Component {
     eventEmitter.on('top:search', this.searchHandler)
 
     eventEmitter.emit('code:init')
+    this.editor.on('scroll', this.scrollHandler)
 
     const editorTheme = document.getElementById('editorTheme')
     editorTheme.addEventListener('load', this.loadStyleHandler)
@@ -164,6 +166,7 @@ export default class CodeEditor extends React.Component {
     this.editor.off('change', this.changeHandler)
     this.editor.off('paste', this.pasteHandler)
     eventEmitter.off('top:search', this.searchHandler)
+    this.editor.off('scroll', this.scrollHandler)
     const editorTheme = document.getElementById('editorTheme')
     editorTheme.removeEventListener('load', this.loadStyleHandler)
   }
@@ -269,27 +272,67 @@ export default class CodeEditor extends React.Component {
   }
 
   handlePaste (editor, e) {
-    const dataTransferItem = e.clipboardData.items[0]
-    if (!dataTransferItem.type.match('image')) return
-
-    const blob = dataTransferItem.getAsFile()
-    const reader = new window.FileReader()
-    let base64data
-
-    reader.readAsDataURL(blob)
-    reader.onloadend = () => {
-      base64data = reader.result.replace(/^data:image\/png;base64,/, '')
-      base64data += base64data.replace('+', ' ')
-      const binaryData = new Buffer(base64data, 'base64').toString('binary')
-      const imageName = Math.random().toString(36).slice(-16)
-      const storagePath = findStorage(this.props.storageKey).path
-      const imageDir = path.join(storagePath, 'images')
-      if (!fs.existsSync(imageDir)) fs.mkdirSync(imageDir)
-      const imagePath = path.join(imageDir, `${imageName}.png`)
-      fs.writeFile(imagePath, binaryData, 'binary')
-      const imageMd = `![${imageName}](${path.join('/:storage', `${imageName}.png`)})`
-      this.insertImageMd(imageMd)
+    const clipboardData = e.clipboardData
+    const dataTransferItem = clipboardData.items[0]
+    const pastedTxt = clipboardData.getData('text')
+    const isURL = (str) => {
+      const matcher = /^(?:\w+:)?\/\/([^\s\.]+\.\S{2}|localhost[\:?\d]*)\S*$/
+      return matcher.test(str)
     }
+    if (dataTransferItem.type.match('image')) {
+      const blob = dataTransferItem.getAsFile()
+      const reader = new FileReader()
+      let base64data
+
+      reader.readAsDataURL(blob)
+      reader.onloadend = () => {
+        base64data = reader.result.replace(/^data:image\/png;base64,/, '')
+        base64data += base64data.replace('+', ' ')
+        const binaryData = new Buffer(base64data, 'base64').toString('binary')
+        const imageName = Math.random().toString(36).slice(-16)
+        const storagePath = findStorage(this.props.storageKey).path
+        const imageDir = path.join(storagePath, 'images')
+        if (!fs.existsSync(imageDir)) fs.mkdirSync(imageDir)
+        const imagePath = path.join(imageDir, `${imageName}.png`)
+        fs.writeFile(imagePath, binaryData, 'binary')
+        const imageMd = `![${imageName}](${path.join('/:storage', `${imageName}.png`)})`
+        this.insertImageMd(imageMd)
+      }
+    } else if (this.props.fetchUrlTitle && isURL(pastedTxt)) {
+      this.handlePasteUrl(e, editor, pastedTxt)
+    }
+  }
+
+  handleScroll (e) {
+    if (this.props.onScroll) {
+      this.props.onScroll(e)
+    }
+  }
+
+  handlePasteUrl (e, editor, pastedTxt) {
+    e.preventDefault()
+    const taggedUrl = `<${pastedTxt}>`
+    editor.replaceSelection(taggedUrl)
+
+    fetch(pastedTxt, {
+      method: 'get'
+    }).then((response) => {
+      return (response.text())
+    }).then((response) => {
+      const parsedResponse = (new window.DOMParser()).parseFromString(response, 'text/html')
+      const value = editor.getValue()
+      const cursor = editor.getCursor()
+      const LinkWithTitle = `[${parsedResponse.title}](${pastedTxt})`
+      const newValue = value.replace(taggedUrl, LinkWithTitle)
+      editor.setValue(newValue)
+      editor.setCursor(cursor)
+    }).catch((e) => {
+      const value = editor.getValue()
+      const newValue = value.replace(taggedUrl, pastedTxt)
+      const cursor = editor.getCursor()
+      editor.setValue(newValue)
+      editor.setCursor(cursor)
+    })
   }
 
   render () {

browser/components/MarkdownEditor.js

@@ -261,6 +261,7 @@ class MarkdownEditor extends React.Component {
           displayLineNumbers={config.editor.displayLineNumbers}
           scrollPastEnd={config.editor.scrollPastEnd}
           storageKey={storageKey}
+          fetchUrlTitle={config.editor.fetchUrlTitle}
           onChange={(e) => this.handleChange(e)}
           onBlur={(e) => this.handleBlur(e)}
         />

browser/components/MarkdownPreview.js

@@ -121,6 +121,7 @@ export default class MarkdownPreview extends React.Component {
     this.mouseDownHandler = (e) => this.handleMouseDown(e)
     this.mouseUpHandler = (e) => this.handleMouseUp(e)
     this.DoubleClickHandler = (e) => this.handleDoubleClick(e)
+    this.scrollHandler = _.debounce(this.handleScroll.bind(this), 100, {leading: false, trailing: true})
     this.anchorClickHandler = (e) => this.handlePreviewAnchorClick(e)
     this.checkboxClickHandler = (e) => this.handleCheckboxClick(e)
     this.saveAsTextHandler = () => this.handleSaveAsText()
@@ -151,6 +152,12 @@ export default class MarkdownPreview extends React.Component {
     this.props.onCheckboxClick(e)
   }
 
+  handleScroll (e) {
+    if (this.props.onScroll) {
+      this.props.onScroll(e)
+    }
+  }
+
   handleContextMenu (e) {
     this.props.onContextMenu(e)
   }
@@ -279,6 +286,7 @@ export default class MarkdownPreview extends React.Component {
     this.refs.root.contentWindow.document.addEventListener('dblclick', this.DoubleClickHandler)
     this.refs.root.contentWindow.document.addEventListener('drop', this.preventImageDroppedHandler)
     this.refs.root.contentWindow.document.addEventListener('dragover', this.preventImageDroppedHandler)
+    this.refs.root.contentWindow.document.addEventListener('scroll', this.scrollHandler)
     eventEmitter.on('export:save-text', this.saveAsTextHandler)
     eventEmitter.on('export:save-md', this.saveAsMdHandler)
     eventEmitter.on('export:save-html', this.saveAsHtmlHandler)
@@ -292,6 +300,7 @@ export default class MarkdownPreview extends React.Component {
     this.refs.root.contentWindow.document.removeEventListener('dblclick', this.DoubleClickHandler)
     this.refs.root.contentWindow.document.removeEventListener('drop', this.preventImageDroppedHandler)
     this.refs.root.contentWindow.document.removeEventListener('dragover', this.preventImageDroppedHandler)
+    this.refs.root.contentWindow.document.removeEventListener('scroll', this.scrollHandler)
     eventEmitter.off('export:save-text', this.saveAsTextHandler)
     eventEmitter.off('export:save-md', this.saveAsMdHandler)
     eventEmitter.off('export:save-html', this.saveAsHtmlHandler)

browser/components/MarkdownSplitEditor.js

@@ -2,6 +2,7 @@ import React from 'react'
 import CodeEditor from 'browser/components/CodeEditor'
 import MarkdownPreview from 'browser/components/MarkdownPreview'
 import { findStorage } from 'browser/lib/findStorage'
+import _ from 'lodash'
 
 import styles from './MarkdownSplitEditor.styl'
 import CSSModules from 'browser/lib/CSSModules'
@@ -12,6 +13,7 @@ class MarkdownSplitEditor extends React.Component {
     this.value = props.value
     this.focus = () => this.refs.code.focus()
     this.reload = () => this.refs.code.reload()
+    this.userScroll = true
   }
 
   handleOnChange () {
@@ -19,6 +21,49 @@ class MarkdownSplitEditor extends React.Component {
     this.props.onChange()
   }
 
+  handleScroll (e) {
+    const previewDoc = _.get(this, 'refs.preview.refs.root.contentWindow.document')
+    const codeDoc = _.get(this, 'refs.code.editor.doc')
+    let srcTop, srcHeight, targetTop, targetHeight
+
+    if (this.userScroll) {
+      if (e.doc) {
+        srcTop = _.get(e, 'doc.scrollTop')
+        srcHeight = _.get(e, 'doc.height')
+        targetTop = _.get(previewDoc, 'body.scrollTop')
+        targetHeight = _.get(previewDoc, 'body.scrollHeight')
+      } else {
+        srcTop = _.get(previewDoc, 'body.scrollTop')
+        srcHeight = _.get(previewDoc, 'body.scrollHeight')
+        targetTop = _.get(codeDoc, 'scrollTop')
+        targetHeight = _.get(codeDoc, 'height')
+      }
+
+      const distance = (targetHeight * srcTop / srcHeight) - targetTop
+      const framerate = 1000 / 60
+      const frames = 20
+      const refractory = frames * framerate
+
+      this.userScroll = false
+
+      let frame = 0
+      let scrollPos, time
+      const timer = setInterval(() => {
+        time = frame / frames
+        scrollPos = time < 0.5
+                  ? 2 * time * time // ease in
+                  : -1 + (4 - 2 * time) * time // ease out
+        if (e.doc) _.set(previewDoc, 'body.scrollTop', targetTop + scrollPos * distance)
+        else _.get(this, 'refs.code.editor').scrollTo(0, targetTop + scrollPos * distance)
+        if (frame >= frames) {
+          clearInterval(timer)
+          setTimeout(() => { this.userScroll = true }, refractory)
+        }
+        frame++
+      }, framerate)
+    }
+  }
+
   handleCheckboxClick (e) {
     e.preventDefault()
     e.stopPropagation()
@@ -66,8 +111,10 @@ class MarkdownSplitEditor extends React.Component {
           indentType={config.editor.indentType}
           indentSize={editorIndentSize}
           scrollPastEnd={config.editor.scrollPastEnd}
+          fetchUrlTitle={config.editor.fetchUrlTitle}
           storageKey={storageKey}
           onChange={this.handleOnChange.bind(this)}
+          onScroll={this.handleScroll.bind(this)}
        />
         <MarkdownPreview
           style={previewStyle}
@@ -84,6 +131,7 @@ class MarkdownSplitEditor extends React.Component {
           tabInde='0'
           value={value}
           onCheckboxClick={(e) => this.handleCheckboxClick(e)}
+          onScroll={this.handleScroll.bind(this)}
           showCopyNotification={config.ui.showCopyNotification}
           storagePath={storage.path}
        />