Double clicking selects a word.

spec/atom/editor-spec.coffee

@@ -244,22 +244,30 @@ describe "Editor", ->
 
             expect(editor.getCursorPosition()).toEqual(lastPosition)
 
+
     describe "when a mousedown event occurs in the editor", ->
-      it "re-positions the cursor to the clicked row / column", ->
+      beforeEach ->
         editor.attachToDom()
-        expect(editor.getCursorPosition()).toEqual(row: 0, column: 0)
+        editor.css(position: 'absolute', top: 10, left: 10)
 
-        [pageX, pageY] = window.pixelPositionForPoint(editor, [3, 10])
-        editor.lines.trigger mousedownEvent({pageX, pageY})
-        expect(editor.getCursorPosition()).toEqual(row: 3, column: 10)
+      describe "when it is a single click", ->
+        it "re-positions the cursor to the clicked row / column", ->
+          editor.attachToDom()
+          editor.css(position: 'absolute', top: 10, left: 10)
 
-    describe "when doubleclick occurs in the editor", ->
-      it "selects the word under the cursor", ->
-        editor.attachToDom()
-        expect(editor.getCursorPosition()).toEqual(row: 0, column: 0)
-        [pageX, pageY] = window.pixelPositionForPoint(editor, [0, 8])
-        editor.lines.trigger mouseupEvent({pageX, pageY, originalEvent: {detail: 2}})
-        expect(editor.getSelectedText()).toBe "quicksort"
+          expect(editor.getCursorPosition()).toEqual(row: 0, column: 0)
+
+          [pageX, pageY] = window.pixelPositionForPoint(editor, [3, 10])
+          editor.lines.trigger mousedownEvent({pageX, pageY})
+          expect(editor.getCursorPosition()).toEqual(row: 3, column: 10)
+
+      describe "when it is a double click", ->
+        it "selects the word under the cursor", ->
+          expect(editor.getCursorPosition()).toEqual(row: 0, column: 0)
+          [pageX, pageY] = window.pixelPositionForPoint(editor, [0, 8])
+          editor.lines.trigger mousedownEvent({pageX, pageY, originalEvent: {detail: 1}})
+          editor.lines.trigger mousedownEvent({pageX, pageY, originalEvent: {detail: 2}})
+          expect(editor.getSelectedText()).toBe "quicksort"
 
   describe "selection", ->
     selection = null
@@ -325,6 +333,7 @@ describe "Editor", ->
     describe "when the mouse is dragged across the text", ->
       it "creates a selection from the initial click to mouse cursor's location ", ->
         editor.attachToDom()
+        editor.css(position: 'absolute', top: 10, left: 10)
 
         # start
         [pageX, pageY] = window.pixelPositionForPoint(editor, [4, 10])

spec/spec-helper.coffee

@@ -33,11 +33,9 @@ window.clickEvent = (properties={}) ->
   $.Event "click", properties
 
 window.mousedownEvent = (properties={}) ->
+  properties.originalEvent ?= {detail: 1}
   $.Event "mousedown", properties
 
-window.mouseupEvent = (properties={}) ->
-  $.Event "mouseup", properties
-
 window.mousemoveEvent = (properties={}) ->
   $.Event "mousemove", properties
 
@@ -68,8 +66,6 @@ window.advanceClock = (delta) ->
       true
 
 window.pixelPositionForPoint = (editor, point) ->
-  editor.css(position: 'absolute', top: 10, left: 10)
-
   point = Point.fromObject point
   pageY = editor.offset().top + point.row * editor.lineHeight + 1 # ensure the pixel is inside the char
   pageX = editor.offset().left + point.column * editor.charWidth + 1 # ensure the pixel is inside the char

src/atom/editor.coffee

@@ -76,15 +76,14 @@ class Editor extends Template
         false
 
       @on 'mousedown', (e) =>
-        @setCursorPosition @pointFromMouseEvent(e)
-        moveHandler = (e) => @selectToPosition(@pointFromMouseEvent(e))
-        @on 'mousemove', moveHandler
-        $(document).one 'mouseup', => @off 'mousemove', moveHandler
-
-      @on 'mouseup', (e) =>
         clickCount = e.originalEvent.detail
-        if clickCount == 2
+
+        if clickCount == 1
           @setCursorPosition @pointFromMouseEvent(e)
+          moveHandler = (e) => @selectToPosition(@pointFromMouseEvent(e))
+          @on 'mousemove', moveHandler
+          $(document).one 'mouseup', => @off 'mousemove', moveHandler
+        else if clickCount == 2
           @selection.selectWord()
 
       @hiddenInput.on "textInput", (e) =>