extensions/shell/browser/desktop_controller.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef EXTENSIONS_SHELL_BROWSER_DESKTOP_CONTROLLER_H_
   6 #define EXTENSIONS_SHELL_BROWSER_DESKTOP_CONTROLLER_H_
   7
   8 #include "ui/gfx/native_widget_types.h"
   9
  10 namespace aura {
  11 class Window;
  12 class WindowTreeHost;
  13 }
  14
  15 namespace content {
  16 class BrowserContext;
  17 }
  18
  19 namespace gfx {
  20 class Size;
  21 }
  22
  23 namespace extensions {
  24 class AppWindow;
  25 class Extension;
  26 class ShellAppWindow;
  27
  28 // DesktopController is an interface to construct the window environment in
  29 // extensions shell. ShellDesktopControllerAura provides a default
  30 // implementation for app_shell, and other embedders can provide their own.
  31 // TODO(jamescook|oshima): Clean up this interface now that there is only one
  32 // way to create an app window.
  33 class DesktopController {
  34  public:
  35   DesktopController();
  36   virtual ~DesktopController();
  37
  38   // Returns the single instance of the desktop. (Stateless functions like
  39   // ShellAppWindowCreateFunction need to be able to access the desktop, so
  40   // we need a singleton somewhere).
  41   static DesktopController* instance();
  42
  43   // Get the size of the window created by this DesktopController. This should
  44   // typically be full-screen.
  45   virtual gfx::Size GetWindowSize() = 0;
  46
  47   // Creates a new app window and adds it to the desktop. The desktop maintains
  48   // ownership of the window. The window must be closed before |extension| is
  49   // destroyed.
  50   virtual AppWindow* CreateAppWindow(content::BrowserContext* context,
  51                                      const Extension* extension) = 0;
  52
  53   // Attaches the window to our window hierarchy.
  54   virtual void AddAppWindow(gfx::NativeWindow window) = 0;
  55
  56   // Removes the window from the desktop.
  57   virtual void RemoveAppWindow(AppWindow* window) = 0;
  58
  59   // Closes and destroys the app windows.
  60   virtual void CloseAppWindows() = 0;
  61 };
  62
  63 }  // namespace extensions
  64
  65 #endif  // EXTENSIONS_SHELL_BROWSER_DESKTOP_CONTROLLER_H_