ash: Add accelerator for snapping windows left/right.

ash/accelerators/accelerator_controller.cc

Index: ash/accelerators/accelerator_controller.cc
diff --git a/ash/accelerators/accelerator_controller.cc b/ash/accelerators/accelerator_controller.cc
index d5455111fd1945d1ce2dfb9b054f08047f30f859..00329198fa1562aa5eb25a45dd204a8d2d4dd8f6 100644
--- a/ash/accelerators/accelerator_controller.cc
+++ b/ash/accelerators/accelerator_controller.cc
@@ -21,8 +21,10 @@
 #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"
@@ -452,6 +454,41 @@ bool AcceleratorController::AcceleratorPressed(
     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)