apps/apps_client.h

   1 // Copyright 2013 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 APPS_APPS_CLIENT_H_
   6 #define APPS_APPS_CLIENT_H_
   7
   8 #include <vector>
   9
  10 namespace content {
  11 class BrowserContext;
  12 }
  13
  14 namespace extensions {
  15 class Extension;
  16 }
  17
  18 namespace apps {
  19
  20 class AppWindow;
  21
  22 // Sets up global state for the apps system. Should be Set() once in each
  23 // process. This should be implemented by the client of the apps system.
  24 class AppsClient {
  25  public:
  26   // Get all loaded browser contexts.
  27   virtual std::vector<content::BrowserContext*> GetLoadedBrowserContexts() = 0;
  28
  29   // Do any pre app launch checks. Returns true if the app launch should proceed
  30   // or false if the launch should be prevented.
  31   virtual bool CheckAppLaunch(content::BrowserContext* context,
  32                               const extensions::Extension* extension) = 0;
  33
  34   // Creates a new apps::AppWindow for the app in |extension| for |context|.
  35   // Caller takes ownership.
  36   virtual AppWindow* CreateAppWindow(
  37       content::BrowserContext* context,
  38       const extensions::Extension* extension) = 0;
  39
  40   // A positive keep-alive count is a request for the embedding application to
  41   // keep running after all windows are closed. The count starts at zero.
  42   virtual void IncrementKeepAliveCount() = 0;
  43   virtual void DecrementKeepAliveCount() = 0;
  44
  45   // Return the apps client.
  46   static AppsClient* Get();
  47
  48   // Initialize the apps system with this apps client.
  49   static void Set(AppsClient* client);
  50 };
  51
  52 }  // namespace apps
  53
  54 #endif  // APPS_APPS_CLIENT_H_