got basic selection working

examples/basic/index.js

@@ -125,7 +125,7 @@ class App extends React.Component {
         renderMark={renderMark}
         state={this.state.state}
         onChange={(state) => {
-          console.log('State:', state)
+          console.log('Change:', state.toJS())
           this.setState({ state })
         }}
       />

lib/components/content.js

@@ -1,7 +1,9 @@
 
 import React from 'react'
+import ReactDOM from 'react-dom'
 import TextNode from './text-node'
 import TextNodeModel from '../models/text-node'
+import findSelection from '../utils/find-selection'
 import keycode from 'keycode'
 
 /**
@@ -10,33 +12,92 @@ import keycode from 'keycode'
 
 class Content extends React.Component {
 
+  /**
+   * Props.
+   */
+
   static propTypes = {
     onChange: React.PropTypes.func,
     onKeyDown: React.PropTypes.func,
+    onSelect: React.PropTypes.func,
     renderMark: React.PropTypes.func.isRequired,
     renderNode: React.PropTypes.func.isRequired,
     state: React.PropTypes.object.isRequired,
   };
 
+  /**
+   * On change, bubble up.
+   *
+   * @param {State} state
+   */
+
   onChange(state) {
     this.props.onChange(state)
   }
 
-  onKeyDown(e) {
-    const key = keycode(e.which)
+  /**
+   * On key down, bubble up.
+   *
+   * @param {Event} e
+   */
 
+  onKeyDown(e) {
     // COMPAT: Certain keys should never be handled by the browser's mechanism,
     // because using the native contenteditable behavior introduces quirks.
-    if (key === 'escape' || key === 'return') {
-      e.preventDefault()
-    }
+    const key = keycode(e.which)
+    if (key === 'escape' || key === 'return') e.preventDefault()
 
     this.props.onKeyDown(e)
   }
 
+  /**
+   * On select, update the current state's selection.
+   *
+   * @param {Event} e
+   */
+
+  onSelect(e) {
+    let { state } = this.props
+    let { selection } = state
+    const native = window.getSelection()
+
+    // no selection is active, so unset `hasFocus`
+    if (!native.rangeCount && selection.hasFocus) {
+      selection = selection.set('hasFocus', false)
+      state = state.set('selection', selection)
+      this.onChange(state)
+      return
+    }
+
+    const el = ReactDOM.findDOMNode(this)
+    const { anchorNode, anchorOffset, focusNode, focusOffset } = native
+    const anchorIsText = anchorNode.nodeType == 3
+    const focusIsText = focusNode.nodeType == 3
+
+    // if both text nodes, find their parent's and create the selection
+    if (anchorIsText && focusIsText) {
+      const anchor = findSelection(anchorNode, anchorOffset)
+      const focus = findSelection(focusNode, focusOffset)
+      selection = selection.set('anchorKey', anchor.key)
+      selection = selection.set('anchorOffset', anchor.offset)
+      selection = selection.set('focusKey', focus.key)
+      selection = selection.set('focusOffset', focus.offset)
+      selection = selection.set('hasFocus', true)
+      state = state.set('selection', selection)
+      this.onChange(state)
+      return
+    }
+  }
+
+  /**
+   * Render the editor content.
+   *
+   * @return {Component} component
+   */
+
   render() {
     const { state } = this.props
-    const { nodes, selection } = state
+    const { nodes } = state
     const children = nodes
       .toArray()
       .map(node => this.renderNode(node))
@@ -47,12 +108,20 @@ class Content extends React.Component {
         suppressContentEditableWarning
         data-type='content'
         onKeyDown={(e) => this.onKeyDown(e)}
+        onSelect={(e) => this.onSelect(e)}
       >
         {children}
       </div>
     )
   }
 
+  /**
+   * Render a single `node`.
+   *
+   * @param {Node} node
+   * @return {Component} component
+   */
+
   renderNode(node) {
     const { renderMark, renderNode } = this.props
 
@@ -87,3 +156,4 @@ class Content extends React.Component {
  */
 
 export default Content
+

lib/components/editor.js

@@ -30,7 +30,7 @@ class Editor extends React.Component {
     }
   }
 
-  componentWillUpdate(props) {
+  componentWillReceiveProps(props) {
     const plugins = this.resolvePlugins(props)
     this.setState({ plugins })
   }

lib/components/text-node.js

@@ -20,7 +20,7 @@ class TextNode extends React.Component {
     const ranges = characters
       .toArray()
       .reduce((ranges, char, i) => {
-        const previous = characters[i - 1]
+        const previous = i == 0 ? null : characters.get(i - 1)
         const { text } = char
         const marks = char.marks.toArray().map(mark => mark.type)
 
@@ -49,16 +49,25 @@ class TextNode extends React.Component {
       }, {})
 
       return (
-        <LeafNode
+        <span
           key={key}
-          styles={styles}
-          text={range.text}
-        />
+          data-key={key}
+          data-type='leaf'
+          style={styles}
+        >
+          {range.text}
+        </span>
       )
     })
 
     return (
-      <span key={node.key} data-type='text'>{leaves}</span>
+      <span
+        key={node.key}
+        data-key={node.key}
+        data-type='text'
+      >
+        {leaves}
+      </span>
     )
   }
 
@@ -109,21 +118,21 @@ class TextNode extends React.Component {
 
 }
 
-/**
- * Find matching `marks` at `index`.
- *
- * @param {Array} marks
- * @param {Number} index
- * @return {Array} marks
- */
+// /**
+//  * Find matching `marks` at `index`.
+//  *
+//  * @param {Array} marks
+//  * @param {Number} index
+//  * @return {Array} marks
+//  */
 
-function findMarks(marks, index) {
-  return marks
-    .filter(mark => mark.start < index)
-    .filter(mark => mark.end + 1 > index)
-    .map(mark => mark.type)
-    .sort()
-}
+// function findMarks(marks, index) {
+//   return marks
+//     .filter(mark => mark.start < index)
+//     .filter(mark => mark.end + 1 > index)
+//     .map(mark => mark.type)
+//     .sort()
+// }
 
 /**
  * Export.

lib/utils/find-offset-key.js

@@ -0,0 +1,24 @@
+
+/**
+ * Find the nearest parent of a `node` and return their offset key.
+ *
+ * @param {Node} node
+ * @return {String} key
+ */
+
+export default function findOffsetKey(node) {
+  let match = node
+
+  while (match && match != document.documentElement) {
+    if (
+      match instanceof Element &&
+      match.hasAttribute('data-key')
+    ) {
+      return match.getAttribute('data-key')
+    }
+
+    match = match.parentNode
+  }
+
+  return null
+}

lib/utils/find-selection.js

@@ -0,0 +1,35 @@
+
+import findOffsetKey from './find-offset-key'
+
+/**
+ * Offset key splitter.
+ */
+
+const SPLITTER = /^(\d+)(?:\.(\d+)-(\d+))?$/
+
+/**
+ * Find the selection anchor properties from a `node`.
+ *
+ * @param {Node} node
+ * @param {Number} nodeOffset
+ * @return {Object} anchor
+ *   @property {String} anchorKey
+ *   @property {Number} anchorOffset
+ */
+
+export default function findSelection(node, nodeOffset) {
+  const offsetKey = findOffsetKey(node)
+  if (!offsetKey) return null
+
+  const matches = SPLITTER.exec(offsetKey)
+  if (!matches) throw new Error(`Unknown offset key "${offsetKey}".`)
+
+  let [ all, key, offsetStart, offsetEnd ] = matches
+  offsetStart = parseInt(offsetStart, 10)
+  offsetEnd = parseInt(offsetEnd, 10)
+
+  return {
+    key: key,
+    offset: offsetStart + nodeOffset
+  }
+}