Dispatch key events to the currently focused window.

mojo/services/window_manager/focus_controller.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/services/window_manager/focus_controller.h"
 
 #include "base/auto_reset.h"
+#include "mojo/services/public/cpp/view_manager/view_property.h"
 #include "mojo/services/public/cpp/view_manager/view_tracker.h"
 #include "mojo/services/window_manager/focus_controller_observer.h"
 #include "mojo/services/window_manager/focus_rules.h"
 #include "mojo/services/window_manager/view_target.h"
 #include "mojo/services/window_manager/window_manager_app.h"
 #include "ui/events/event.h"
 
+DECLARE_VIEW_PROPERTY_TYPE(mojo::FocusController*);
+
 namespace mojo {
 
+namespace {
+DEFINE_VIEW_PROPERTY_KEY(FocusController*, kRootViewFocusController, nullptr);
+}  // namespace
+
 FocusController::FocusController(scoped_ptr<FocusRules> rules)
     : active_view_(nullptr),
       focused_view_(nullptr),
       updating_focus_(false),
       updating_activation_(false),
       rules_(rules.Pass()),
       observer_manager_(this) {
   DCHECK(rules_);
 }
 
@@ skipping 264 matching lines @@
 }
 
 void FocusController::ViewFocusedFromInputEvent(View* view) {
   // Only focus |window| if it or any of its parents can be focused. Otherwise
   // FocusWindow() will focus the topmost window, which may not be the
   // currently focused one.
   if (rules_->CanFocusView(GetToplevelView(view)))
     FocusView(view);
 }
 
+void SetFocusController(View* root_view, FocusController* focus_controller) {
+  DCHECK_EQ(root_view->GetRoot(), root_view);
+  root_view->SetLocalProperty(kRootViewFocusController, focus_controller);
+}
+
+FocusController* GetFocusController(View* root_view) {
+  if (root_view)
+    DCHECK_EQ(root_view->GetRoot(), root_view);
+  return root_view ?
+      root_view->GetLocalProperty(kRootViewFocusController) : nullptr;
+}
+
 }  // namespace mojo