API proposal for chrome.app.window to intercept all keys.

chrome/browser/ui/views/apps/chrome_native_app_window_views.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_APPS_CHROME_NATIVE_APP_WINDOW_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_APPS_CHROME_NATIVE_APP_WINDOW_VIEWS_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "extensions/components/native_app_window/native_app_window_views.h"
 #include "ui/views/context_menu_controller.h"
 
 namespace apps {
 class AppWindowFrameView;
 }
 
 #if defined(USE_ASH)
 namespace ash {
 class ImmersiveFullscreenController;
 }
 #endif
 
+class DesktopKeyboardCapture;
 class ExtensionKeybindingRegistryViews;
 
 namespace views {
 class MenuRunner;
 }
 
 class ChromeNativeAppWindowViews
     : public native_app_window::NativeAppWindowViews,
       public views::ContextMenuController {
  public:
@@ skipping 43 matching lines @@
   bool AcceleratorPressed(const ui::Accelerator& accelerator) override;
 
   // NativeAppWindow implementation.
   void SetFullscreen(int fullscreen_types) override;
   bool IsFullscreenOrPending() const override;
   void UpdateBadgeIcon() override;
   void UpdateShape(scoped_ptr<SkRegion> region) override;
   bool HasFrameColor() const override;
   SkColor ActiveFrameColor() const override;
   SkColor InactiveFrameColor() const override;
+  virtual void SetInterceptAllKeys(bool want_all_keys) override;
 
   // NativeAppWindowViews implementation.
   void InitializeWindow(
       extensions::AppWindow* app_window,
       const extensions::AppWindow::CreateParams& create_params) override;
 
   // True if the window is fullscreen or fullscreen is pending.
   bool is_fullscreen_;
 
   // Custom shape of the window. If this is not set then the window has a
@@ skipping 13 matching lines @@
   // immersive fullscreen, the window header (title bar and window controls)
   // slides onscreen as an overlay when the mouse is hovered at the top of the
   // screen.
   scoped_ptr<ash::ImmersiveFullscreenController>
       immersive_fullscreen_controller_;
 #endif  // defined(USE_ASH)
 
   // Used to show the system menu.
   scoped_ptr<views::MenuRunner> menu_runner_;
 
+  // Used to capture all keyboard events including task switching sequence.
+  scoped_ptr<DesktopKeyboardCapture> desktop_keyboard_capture_;
+
   DISALLOW_COPY_AND_ASSIGN(ChromeNativeAppWindowViews);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_APPS_CHROME_NATIVE_APP_WINDOW_VIEWS_H_