ESC accelerator and consistent overview mode for Athena homecard

athena/home/home_card_impl.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 "athena/home/home_card_impl.h"
 
 #include <cmath>
 #include <limits>
 
 #include "athena/env/public/athena_env.h"
@@ skipping 341 matching lines @@
 }
 
 bool HomeCardImpl::IsCommandEnabled(int command_id) const {
   return true;
 }
 
 bool HomeCardImpl::OnAcceleratorFired(int command_id,
                                       const ui::Accelerator& accelerator) {
   DCHECK_EQ(COMMAND_SHOW_HOME_CARD, command_id);
 
-  if (state_ == VISIBLE_CENTERED && original_state_ != VISIBLE_BOTTOM)
+  if (state_ == VISIBLE_CENTERED && original_state_ != VISIBLE_BOTTOM) {
     SetState(VISIBLE_MINIMIZED);
-  else if (state_ == VISIBLE_MINIMIZED)
+    WindowManager::Get()->ExitOverview();
+  } else if (state_ == VISIBLE_MINIMIZED) {
     SetState(VISIBLE_CENTERED);
+    WindowManager::Get()->EnterOverview();
+  }
   return true;
 }
 
 void HomeCardImpl::OnGestureEnded(State final_state, bool is_fling) {
   home_card_view_->ClearGesture();
   if (state_ != final_state &&
       (state_ == VISIBLE_MINIMIZED || final_state == VISIBLE_MINIMIZED)) {
     SetState(final_state);
     if (WindowManager::Get()->IsOverviewModeActive())
       WindowManager::Get()->ExitOverview();
@@ skipping 70 matching lines @@
   instance = NULL;
 }
 
 // static
 HomeCard* HomeCard::Get() {
   DCHECK(instance);
   return instance;
 }
 
 }  // namespace athena