Move ctrl-mousewheel handling out of TextEditorComponent

Signed-off-by: Nathan Sobo <nathan@github.com>

src/text-editor-component.coffee

@@ -392,15 +392,6 @@ class TextEditorComponent
     # Only scroll in one direction at a time
     {wheelDeltaX, wheelDeltaY} = event
 
-    # Ctrl+MouseWheel adjusts font size.
-    if event.ctrlKey and @config.get('editor.zoomFontWhenCtrlScrolling')
-      if wheelDeltaY > 0
-        @workspace.increaseFontSize()
-      else if wheelDeltaY < 0
-        @workspace.decreaseFontSize()
-      event.preventDefault()
-      return
-
     if Math.abs(wheelDeltaX) > Math.abs(wheelDeltaY)
       # Scrolling horizontally
       previousScrollLeft = @presenter.getScrollLeft()

src/workspace-element.coffee

@@ -76,6 +76,8 @@ class WorkspaceElement extends HTMLElement
     @verticalAxis.appendChild(@paneContainer)
     @addEventListener 'focus', @handleFocus.bind(this)
 
+    @addEventListener 'mousewheel', @handleMousewheel.bind(this), true
+
     @panelContainers =
       top: @views.getView(@model.panelContainers.top)
       left: @views.getView(@model.panelContainers.left)
@@ -100,6 +102,15 @@ class WorkspaceElement extends HTMLElement
 
   getModel: -> @model
 
+  handleMousewheel: (event) ->
+    if event.ctrlKey and @config.get('editor.zoomFontWhenCtrlScrolling') and event.target.matches('atom-text-editor')
+      if event.wheelDeltaY > 0
+        @model.increaseFontSize()
+      else if event.wheelDeltaY < 0
+        @model.decreaseFontSize()
+      event.preventDefault()
+      event.stopPropagation()
+
   handleFocus: (event) ->
     @model.getActivePane().activate()