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 409 matching lines @@
       break;
     case SELECT_WIN_6:
       SwitchToWindow(6);
       break;
     case SELECT_WIN_7:
       SwitchToWindow(7);
       break;
     case SELECT_LAST_WIN:
       SwitchToWindow(-1);
       break;
+    case WINDOW_SNAP_LEFT:
+    case WINDOW_SNAP_RIGHT: {
+      aura::Window* window = wm::GetActiveWindow();
+      if (!window)
+        break;
+      internal::SnapSizer sizer(window,

[sky, 2012/04/25 17:26:01]

Can you make it so that this iterates over the possible snap sizes? For example,
if the window isn't already snapped first invocation snaps to first snapped
bounds, second invocation snaps to second bounds...

[sadrul, 2012/04/25 18:05:34]

ooo, nice! Done.

+          gfx::Point(),
+          action == WINDOW_SNAP_LEFT ? internal::SnapSizer::LEFT_EDGE :
+                                       internal::SnapSizer::RIGHT_EDGE,
+          shell->GetGridSize());
+      window->SetBounds(sizer.target_bounds());
+      break;
+    }
+    case WINDOW_MINIMIZE: {
+      aura::Window* window = wm::GetActiveWindow();
+      if (window)
+        wm::MinimizeWindow(window);
+      break;
+    }
+    case WINDOW_MAXIMIZE_RESTORE: {
+      aura::Window* window = wm::GetActiveWindow();
+      if (window) {
+        if (wm::IsWindowMaximized(window))
+          wm::RestoreWindow(window);
+        else
+          wm::MaximizeWindow(window);
+      }
+      break;
+    }
+    case WINDOW_POSITION_CENTER: {
+      aura::Window* window = wm::GetActiveWindow();
+      if (window)
+        wm::CenterWindow(window);
+      break;
+    }
     case ROTATE_WINDOWS:
       return HandleRotateWindows();
 #if !defined(NDEBUG)
     case ROTATE_SCREEN:
       return HandleRotateScreen();
     case TOGGLE_DESKTOP_BACKGROUND_MODE:
       return HandleToggleDesktopBackgroundMode();
     case TOGGLE_ROOT_WINDOW_FULL_SCREEN:
       return HandleToggleRootWindowFullScreen();
     case PRINT_LAYER_HIERARCHY:
@@ skipping 39 matching lines @@
     // Then set this one as active.
     ActivateLauncherItem(found_index);
   }
 }
 
 bool AcceleratorController::CanHandleAccelerators() const {
   return true;
 }
 
 }  // namespace ash