apps/app_window_registry.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 APPS_APP_WINDOW_REGISTRY_H_
   6 #define APPS_APP_WINDOW_REGISTRY_H_
   7
   8 #include <list>
   9
  10 #include "base/callback.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/singleton.h"
  13 #include "base/observer_list.h"
  14 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
  15 #include "components/keyed_service/core/keyed_service.h"
  16 #include "ui/gfx/native_widget_types.h"
  17
  18 namespace content {
  19 class BrowserContext;
  20 class DevToolsAgentHost;
  21 class RenderViewHost;
  22 }
  23
  24 namespace apps {
  25
  26 class AppWindow;
  27
  28 // The AppWindowRegistry tracks the AppWindows for all platform apps for a
  29 // particular browser context.
  30 class AppWindowRegistry : public KeyedService {
  31  public:
  32   class Observer {
  33    public:
  34     // Called just after a app window was added.
  35     virtual void OnAppWindowAdded(apps::AppWindow* app_window) = 0;
  36     // Called when the window icon changes.
  37     virtual void OnAppWindowIconChanged(apps::AppWindow* app_window) = 0;
  38     // Called just after a app window was removed.
  39     virtual void OnAppWindowRemoved(apps::AppWindow* app_window) = 0;
  40
  41    protected:
  42     virtual ~Observer() {}
  43   };
  44
  45   typedef std::list<apps::AppWindow*> AppWindowList;
  46   typedef AppWindowList::const_iterator const_iterator;
  47   typedef std::set<std::string> InspectedWindowSet;
  48
  49   explicit AppWindowRegistry(content::BrowserContext* context);
  50   virtual ~AppWindowRegistry();
  51
  52   // Returns the instance for the given browser context, or NULL if none. This
  53   // is a convenience wrapper around
  54   // AppWindowRegistry::Factory::GetForBrowserContext().
  55   static AppWindowRegistry* Get(content::BrowserContext* context);
  56
  57   void AddAppWindow(apps::AppWindow* app_window);
  58   void AppWindowIconChanged(apps::AppWindow* app_window);
  59   // Called by |app_window| when it is activated.
  60   void AppWindowActivated(apps::AppWindow* app_window);
  61   void RemoveAppWindow(apps::AppWindow* app_window);
  62
  63   void AddObserver(Observer* observer);
  64   void RemoveObserver(Observer* observer);
  65
  66   // Returns a set of windows owned by the application identified by app_id.
  67   AppWindowList GetAppWindowsForApp(const std::string& app_id) const;
  68   const AppWindowList& app_windows() const { return app_windows_; }
  69
  70   // Close all app windows associated with an app.
  71   void CloseAllAppWindowsForApp(const std::string& app_id);
  72
  73   // Helper functions to find app windows with particular attributes.
  74   apps::AppWindow* GetAppWindowForRenderViewHost(
  75       content::RenderViewHost* render_view_host) const;
  76   apps::AppWindow* GetAppWindowForNativeWindow(gfx::NativeWindow window) const;
  77   // Returns an app window for the given app, or NULL if no app windows are
  78   // open. If there is a window for the given app that is active, that one will
  79   // be returned, otherwise an arbitrary window will be returned.
  80   apps::AppWindow* GetCurrentAppWindowForApp(const std::string& app_id) const;
  81   // Returns an app window for the given app and window key, or NULL if no app
  82   // window with the key are open. If there is a window for the given app and
  83   // key that is active, that one will be returned, otherwise an arbitrary
  84   // window will be returned.
  85   apps::AppWindow* GetAppWindowForAppAndKey(const std::string& app_id,
  86                                             const std::string& window_key)
  87       const;
  88
  89   // Returns whether a AppWindow's ID was last known to have a DevToolsAgent
  90   // attached to it, which should be restored during a reload of a corresponding
  91   // newly created |render_view_host|.
  92   bool HadDevToolsAttached(content::RenderViewHost* render_view_host) const;
  93
  94   // Returns the app window for |window|, looking in all browser contexts.
  95   static apps::AppWindow* GetAppWindowForNativeWindowAnyProfile(
  96       gfx::NativeWindow window);
  97
  98   // Returns true if the number of app windows registered across all browser
  99   // contexts is non-zero. |window_type_mask| is a bitwise OR filter of
 100   // AppWindow::WindowType, or 0 for any window type.
 101   static bool IsAppWindowRegisteredInAnyProfile(int window_type_mask);
 102
 103   class Factory : public BrowserContextKeyedServiceFactory {
 104    public:
 105     static AppWindowRegistry* GetForBrowserContext(
 106         content::BrowserContext* context,
 107         bool create);
 108
 109     static Factory* GetInstance();
 110
 111    private:
 112     friend struct DefaultSingletonTraits<Factory>;
 113
 114     Factory();
 115     virtual ~Factory();
 116
 117     // BrowserContextKeyedServiceFactory
 118     virtual KeyedService* BuildServiceInstanceFor(
 119         content::BrowserContext* context) const OVERRIDE;
 120     virtual bool ServiceIsCreatedWithBrowserContext() const OVERRIDE;
 121     virtual bool ServiceIsNULLWhileTesting() const OVERRIDE;
 122     virtual content::BrowserContext* GetBrowserContextToUse(
 123         content::BrowserContext* context) const OVERRIDE;
 124   };
 125
 126  protected:
 127   void OnDevToolsStateChanged(content::DevToolsAgentHost*, bool attached);
 128
 129  private:
 130   // Ensures the specified |app_window| is included in |app_windows_|.
 131   // Otherwise adds |app_window| to the back of |app_windows_|.
 132   void AddAppWindowToList(apps::AppWindow* app_window);
 133
 134   // Bring |app_window| to the front of |app_windows_|. If it is not in the
 135   // list, add it first.
 136   void BringToFront(apps::AppWindow* app_window);
 137
 138   content::BrowserContext* context_;
 139   AppWindowList app_windows_;
 140   InspectedWindowSet inspected_windows_;
 141   ObserverList<Observer> observers_;
 142   base::Callback<void(content::DevToolsAgentHost*, bool)> devtools_callback_;
 143 };
 144
 145 }  // namespace extensions
 146
 147 #endif  // APPS_APP_WINDOW_REGISTRY_H_