Funnel cursor and selection updates through EditorComponent

src/cursor-component.coffee

@@ -1,11 +1,9 @@
 React = require 'react'
 {div} = require 'reactionary'
-SubscriberMixin = require './subscriber-mixin'
 
 module.exports =
 CursorComponent = React.createClass
   displayName: 'CursorComponent'
-  mixins: [SubscriberMixin]
 
   render: ->
     {top, left, height, width} = @props.cursor.getPixelRect()
@@ -13,9 +11,3 @@ CursorComponent = React.createClass
     className += ' blink-off' if @props.blinkOff
 
     div className: className, style: {top, left, height, width}
-
-  componentDidMount: ->
-    @subscribe @props.cursor, 'moved', => @forceUpdate()
-
-  componentWillUnmount: ->
-    @unsubscribe()

src/editor-component.coffee

@@ -75,6 +75,7 @@ EditorCompont = React.createClass
   observeEditor: ->
     {editor} = @props
     @subscribe editor, 'screen-lines-changed', @onScreenLinesChanged
+    @subscribe editor, 'selection-screen-range-changed', @requestUpdate
     @subscribe editor, 'selection-added', @onSelectionAdded
     @subscribe editor, 'selection-removed', @onSelectionAdded
     @subscribe editor.$scrollTop.changes, @requestUpdate

src/editor.coffee

@@ -1246,6 +1246,9 @@ class Editor extends Model
     else
       false
 
+  selectionScreenRangeChanged: (selection) ->
+    @emit 'selection-screen-range-changed', selection
+
   # Public: Get current {Selection}s.
   #
   # Returns: An {Array} of {Selection}s.

src/selection-component.coffee

@@ -1,19 +1,11 @@
 React = require 'react'
 {div} = require 'reactionary'
-SubscriberMixin = require './subscriber-mixin'
 
 module.exports =
 SelectionComponent = React.createClass
   displayName: 'SelectionComponent'
-  mixins: [SubscriberMixin]
 
   render: ->
     div className: 'selection',
       for regionRect, i in @props.selection.getRegionRects()
         div className: 'region', key: i, style: regionRect
-
-  componentDidMount: ->
-    @subscribe @props.selection, 'screen-range-changed', => @forceUpdate()
-
-  componentWillUnmount: ->
-    @unsubscribe()

src/selection.coffee

@@ -613,3 +613,4 @@ class Selection extends Model
   screenRangeChanged: ->
     screenRange = @getScreenRange()
     @emit 'screen-range-changed', screenRange
+    @editor.selectionScreenRangeChanged(this)