Dispatch Sticky Keys after event rewriter handled.

Sticky Keys should be handled before input methods and after event rewriter.

BUG=229042
TEST=None

Review URL: https://chromiumcodereview.appspot.com/16809002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@207220 0039d316-1c4b-4281-b951-d872f2087c98

ash/wm/event_rewriter_event_filter.cc

@@ -8,6 +8,9 @@
 #include "base/logging.h"
 #include "ui/base/events/event.h"
 
+#if defined(OS_CHROMEOS)
+#include "ash/wm/sticky_keys.h"
+#endif  // OS_CHROMEOS
 namespace ash {
 namespace internal {
 
@@ -20,6 +23,13 @@ void EventRewriterEventFilter::SetEventRewriterDelegate(
   delegate_ = delegate.Pass();
 }
 
+void EventRewriterEventFilter::EnableStickyKeys(bool enabled) {
+#if defined(OS_CHROMEOS)
+  if (enabled)
+    sticky_keys_.reset(new StickyKeys());
+#endif  // OS_CHROMEOS
+}
+
 void EventRewriterEventFilter::OnKeyEvent(ui::KeyEvent* event) {
   if (!delegate_)
     return;
@@ -37,6 +47,14 @@ void EventRewriterEventFilter::OnKeyEvent(ui::KeyEvent* event) {
       event->StopPropagation();
       break;
   }
+
+  if (event->stopped_propagation())
+    return;
+
+#if defined(OS_CHROMEOS)
+  if (sticky_keys_.get() && sticky_keys_->HandleKeyEvent(event))
+    event->StopPropagation();
+#endif  // OS_CHROMEOS
 }
 
 void EventRewriterEventFilter::OnMouseEvent(ui::MouseEvent* event) {

ash/wm/event_rewriter_event_filter.h

@@ -14,6 +14,9 @@
 namespace ash {
 
 class EventRewriterDelegate;
+#if defined(OS_CHROMEOS)
+class StickyKeys;
+#endif  // OS_CHROMEOS
 
 namespace internal {
 
@@ -25,12 +28,18 @@ class ASH_EXPORT EventRewriterEventFilter : public ui::EventHandler {
 
   void SetEventRewriterDelegate(scoped_ptr<EventRewriterDelegate> delegate);
 
+  // Enables or disables sticky keys.
+  void EnableStickyKeys(bool enabled);
+
  private:
   // Overridden from ui::EventHandler:
   virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
   virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
 
   scoped_ptr<EventRewriterDelegate> delegate_;
+#if defined(OS_CHROMEOS)
+  scoped_ptr<StickyKeys> sticky_keys_;
+#endif  // OS_CHROMEOS
 
   DISALLOW_COPY_AND_ASSIGN(EventRewriterEventFilter);
 };