ash: Add accelerator for snapping windows left/right.

ash/accelerators/accelerator_controller.cc

 // Copyright (c) 2012 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 "ash/accelerators/accelerator_controller.h"
 
 #include "ash/accelerators/accelerator_table.h"
 #include "ash/desktop_background/desktop_background_controller.h"
 #include "ash/ash_switches.h"
 #include "ash/caps_lock_delegate.h"
 #include "ash/focus_cycler.h"
 #include "ash/ime_control_delegate.h"
 #include "ash/launcher/launcher.h"
 #include "ash/launcher/launcher_model.h"
 #include "ash/launcher/launcher_delegate.h"
 #include "ash/monitor/multi_monitor_manager.h"
 #include "ash/screenshot_delegate.h"
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/shell_window_ids.h"
 #include "ash/system/brightness/brightness_control_delegate.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/volume_control_delegate.h"
+#include "ash/wm/property_util.h"
 #include "ash/wm/window_cycle_controller.h"
 #include "ash/wm/window_util.h"
+#include "ash/wm/workspace/snap_sizer.h"
 #include "base/command_line.h"
 #include "ui/aura/event.h"
 #include "ui/aura/root_window.h"
 #include "ui/base/accelerators/accelerator.h"
 #include "ui/base/accelerators/accelerator_manager.h"
 #include "ui/gfx/compositor/debug_utils.h"
 #include "ui/gfx/compositor/layer.h"
 #include "ui/gfx/compositor/layer_animation_sequence.h"
 #include "ui/gfx/compositor/layer_animator.h"
 #include "ui/gfx/compositor/screen_rotation.h"
@@ skipping 345 matching lines @@
         return volume_control_delegate_->HandleVolumeDown(accelerator);
       break;
     case VOLUME_UP:
       if (volume_control_delegate_.get())
         return volume_control_delegate_->HandleVolumeUp(accelerator);
       break;
     case FOCUS_TRAY:
       if (shell->tray())
         return shell->focus_cycler()->FocusWidget(shell->tray()->GetWidget());
       break;
+    case SNAP_WINDOW_LEFT:
+    case SNAP_WINDOW_RIGHT: {
+      aura::Window* window = wm::GetActiveWindow();
+      if (!window)
+        break;
+      internal::SnapSizer sizer(window,
+          gfx::Point(),
+          action == SNAP_WINDOW_LEFT ? internal::SnapSizer::LEFT_EDGE :
+                                       internal::SnapSizer::RIGHT_EDGE,
+          shell->GetGridSize());
+      window->SetBounds(sizer.target_bounds());
+      break;
+    }
     case SHOW_OAK:
       if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kAshEnableOak))
         oak::ShowOakWindow();
       break;
     case NEXT_IME:
       if (ime_control_delegate_.get())
         return ime_control_delegate_->HandleNextIme();
       break;
     case PREVIOUS_IME:
       if (ime_control_delegate_.get())
@@ skipping 82 matching lines @@
     // Then set this one as active.
     ActivateLauncherItem(found_index);
   }
 }
 
 bool AcceleratorController::CanHandleAccelerators() const {
   return true;
 }
 
 }  // namespace ash