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

apps/app_window.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 APPS_APP_WINDOW_H_
 #define APPS_APP_WINDOW_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/sessions/session_id.h"
@@ skipping 336 matching lines @@
 
   // Set whether the window should stay above other windows which are not
   // configured to be always-on-top.
   void SetAlwaysOnTop(bool always_on_top);
 
   // Whether the always-on-top property has been set by the chrome.app.window
   // API. Note that the actual value of this property in the native app window
   // may be false if the bit is silently switched off for security reasons.
   bool IsAlwaysOnTop() const;
 
+  // Set whether the window should get even reserved keys (modulo platform
+  // restrictions).
+  void SetInterceptAllKeys(bool want_all_keys);
+
   // Retrieve the current state of the app window as a dictionary, to pass to
   // the renderer.
   void GetSerializedState(base::DictionaryValue* properties) const;
 
   // Called by the window API when events can be sent to the window for this
   // app.
   void WindowEventsReady();
 
  protected:
   virtual ~AppWindow();
@@ skipping 88 matching lines @@
   // Set the fullscreen state in the native app window.
   void SetNativeWindowFullscreen();
 
   // Returns true if there is any overlap between the window and the taskbar
   // (Windows only).
   bool IntersectsWithTaskbar() const;
 
   // Update the always-on-top bit in the native app window.
   void UpdateNativeAlwaysOnTop();
 
+  // Update the intercept-all-keys bit in the native app window.
+  void UpdateNativeInterceptAllKeys();
+
   // Sends the onWindowShown event to the app if the window has been shown. Only
   // has an effect in tests.
   void SendOnWindowShownIfShown();
 
   // web_modal::WebContentsModalDialogManagerDelegate implementation.
   virtual web_modal::WebContentsModalDialogHost* GetWebContentsModalDialogHost()
       OVERRIDE;
 
   // Updates the badge to |image|. Called internally from the image loader
   // callback.
@@ skipping 76 matching lines @@
   // Whether the delayed Show() call was for an active or inactive window.
   ShowType delayed_show_type_;
 
   // Cache the desired value of the always-on-top property. When windows enter
   // fullscreen or overlap the Windows taskbar, this property will be
   // automatically and silently switched off for security reasons. It is
   // reinstated when the window exits fullscreen and moves away from the
   // taskbar.
   bool cached_always_on_top_;
 
+  // Cached value of InterceptAllKeys property that is used to save/restore
+  // state as the window is active/loses focus.
+  bool cached_want_all_keys_;
+
   DISALLOW_COPY_AND_ASSIGN(AppWindow);
 };
 
 }  // namespace apps
 
 #endif  // APPS_APP_WINDOW_H_