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     // Called just after a app window was hidden. This is different from
  41     // window visibility as a minimize does not hide a window, but does make
  42     // it not visible.
  43     virtual void OnAppWindowHidden(apps::AppWindow* app_window);
  44     // Called just after a app window was shown.
  45     virtual void OnAppWindowShown(apps::AppWindow* app_window);
  46
  47    protected:
  48     virtual ~Observer();
  49   };
  50
  51   typedef std::list<apps::AppWindow*> AppWindowList;
  52   typedef AppWindowList::const_iterator const_iterator;
  53   typedef std::set<std::string> InspectedWindowSet;
  54
  55   explicit AppWindowRegistry(content::BrowserContext* context);
  56   virtual ~AppWindowRegistry();
  57
  58   // Returns the instance for the given browser context, or NULL if none. This
  59   // is a convenience wrapper around
  60   // AppWindowRegistry::Factory::GetForBrowserContext().
  61   static AppWindowRegistry* Get(content::BrowserContext* context);
  62
  63   void AddAppWindow(apps::AppWindow* app_window);
  64   void AppWindowIconChanged(apps::AppWindow* app_window);
  65   // Called by |app_window| when it is activated.
  66   void AppWindowActivated(apps::AppWindow* app_window);
  67   void AppWindowHidden(apps::AppWindow* app_window);
  68   void AppWindowShown(apps::AppWindow* app_window);
  69   void RemoveAppWindow(apps::AppWindow* app_window);
  70
  71   void AddObserver(Observer* observer);
  72   void RemoveObserver(Observer* observer);
  73
  74   // Returns a set of windows owned by the application identified by app_id.
  75   AppWindowList GetAppWindowsForApp(const std::string& app_id) const;
  76   const AppWindowList& app_windows() const { return app_windows_; }
  77
  78   // Close all app windows associated with an app.
  79   void CloseAllAppWindowsForApp(const std::string& app_id);
  80
  81   // Helper functions to find app windows with particular attributes.
  82   apps::AppWindow* GetAppWindowForRenderViewHost(
  83       content::RenderViewHost* render_view_host) const;
  84   apps::AppWindow* GetAppWindowForNativeWindow(gfx::NativeWindow window) const;
  85   // Returns an app window for the given app, or NULL if no app windows are
  86   // open. If there is a window for the given app that is active, that one will
  87   // be returned, otherwise an arbitrary window will be returned.
  88   apps::AppWindow* GetCurrentAppWindowForApp(const std::string& app_id) const;
  89   // Returns an app window for the given app and window key, or NULL if no app
  90   // window with the key are open. If there is a window for the given app and
  91   // key that is active, that one will be returned, otherwise an arbitrary
  92   // window will be returned.
  93   apps::AppWindow* GetAppWindowForAppAndKey(const std::string& app_id,
  94                                             const std::string& window_key)
  95       const;
  96
  97   // Returns whether a AppWindow's ID was last known to have a DevToolsAgent
  98   // attached to it, which should be restored during a reload of a corresponding
  99   // newly created |render_view_host|.
 100   bool HadDevToolsAttached(content::RenderViewHost* render_view_host) const;
 101
 102   // Returns the app window for |window|, looking in all browser contexts.
 103   static apps::AppWindow* GetAppWindowForNativeWindowAnyProfile(
 104       gfx::NativeWindow window);
 105
 106   // Returns true if the number of app windows registered across all browser
 107   // contexts is non-zero. |window_type_mask| is a bitwise OR filter of
 108   // AppWindow::WindowType, or 0 for any window type.
 109   static bool IsAppWindowRegisteredInAnyProfile(int window_type_mask);
 110
 111   class Factory : public BrowserContextKeyedServiceFactory {
 112    public:
 113     static AppWindowRegistry* GetForBrowserContext(
 114         content::BrowserContext* context,
 115         bool create);
 116
 117     static Factory* GetInstance();
 118
 119    private:
 120     friend struct DefaultSingletonTraits<Factory>;
 121
 122     Factory();
 123     virtual ~Factory();
 124
 125     // BrowserContextKeyedServiceFactory
 126     virtual KeyedService* BuildServiceInstanceFor(
 127         content::BrowserContext* context) const OVERRIDE;
 128     virtual bool ServiceIsCreatedWithBrowserContext() const OVERRIDE;
 129     virtual bool ServiceIsNULLWhileTesting() const OVERRIDE;
 130     virtual content::BrowserContext* GetBrowserContextToUse(
 131         content::BrowserContext* context) const OVERRIDE;
 132   };
 133
 134  protected:
 135   void OnDevToolsStateChanged(content::DevToolsAgentHost*, bool attached);
 136
 137  private:
 138   // Ensures the specified |app_window| is included in |app_windows_|.
 139   // Otherwise adds |app_window| to the back of |app_windows_|.
 140   void AddAppWindowToList(apps::AppWindow* app_window);
 141
 142   // Bring |app_window| to the front of |app_windows_|. If it is not in the
 143   // list, add it first.
 144   void BringToFront(apps::AppWindow* app_window);
 145
 146   content::BrowserContext* context_;
 147   AppWindowList app_windows_;
 148   InspectedWindowSet inspected_windows_;
 149   ObserverList<Observer> observers_;
 150   base::Callback<void(content::DevToolsAgentHost*, bool)> devtools_callback_;
 151 };
 152
 153 }  // namespace apps
 154
 155 #endif  // APPS_APP_WINDOW_REGISTRY_H_