Finder

browser/finder/NoteList.js

@@ -0,0 +1,89 @@
+import React, { PropTypes } from 'react'
+import NoteItem from './NoteItem'
+import _ from 'lodash'
+
+class NoteList extends React.Component {
+  constructor (props) {
+    super(props)
+
+    this.state = {
+      range: 0
+    }
+  }
+
+  componentWillReceiveProps (nextProps) {
+    if (this.props.search !== nextProps.search) {
+      this.resetScroll()
+    }
+  }
+
+  componentDidUpdate () {
+    let { index } = this.props
+
+    if (index > -1) {
+      let list = this.refs.root
+      let item = list.childNodes[index]
+      if (item == null) return null
+
+      let overflowBelow = item.offsetTop + item.clientHeight - list.clientHeight - list.scrollTop > 0
+      if (overflowBelow) {
+        list.scrollTop = item.offsetTop + item.clientHeight - list.clientHeight
+      }
+      let overflowAbove = list.scrollTop > item.offsetTop
+      if (overflowAbove) {
+        list.scrollTop = item.offsetTop
+      }
+    }
+  }
+
+  resetScroll () {
+    this.refs.root.scrollTop = 0
+    this.setState({
+      range: 0
+    })
+  }
+
+  handleScroll (e) {
+    let { notes } = this.props
+
+    if (e.target.offsetHeight + e.target.scrollTop > e.target.scrollHeight - 100 && notes.length > this.state.range * 10 + 10) {
+      this.setState({
+        range: this.state.range + 1
+      })
+    }
+  }
+
+  render () {
+    let { storages, notes, index } = this.props
+
+    let notesList = notes
+      .slice(0, 10 + 10 * this.state.range)
+      .map((note, _index) => {
+        let storage = _.find(storages, {key: note.storage})
+        let folder = _.find(storage.folders, {key: note.folder})
+        return (
+          <NoteItem
+            note={note}
+            key={`${note.storage}-${note.folder}-${note.key}`}
+            storage={storage}
+            folder={folder}
+            isActive={index === _index}
+            onClick={(e) => this.props.handleNoteClick(e, _index)}
+          />
+        )
+      })
+    return (
+      <div className={this.props.className}
+        onScroll={(e) => this.handleScroll(e)}
+        ref='root'
+      >
+        {notesList}
+      </div>
+    )
+  }
+}
+
+NoteList.propTypes = {
+}
+
+export default NoteList