athena/content/app_activity_proxy.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 ATHENA_CONTENT_APP_ACTIVITY_PROXY_H_
   6 #define ATHENA_CONTENT_APP_ACTIVITY_PROXY_H_
   7
   8 #include <vector>
   9
  10 #include "athena/activity/public/activity.h"
  11 #include "athena/activity/public/activity_view_model.h"
  12 #include "athena/content/content_proxy.h"
  13 #include "base/memory/scoped_ptr.h"
  14
  15 namespace athena {
  16
  17 class AppActivity;
  18 class AppActivityRegistry;
  19
  20 // This activity object is a proxy placeholder for the application while it is
  21 // unloaded. When selected it will launch the application again and destroy
  22 // itself indirectly.
  23 class AppActivityProxy : public Activity,
  24                          public ActivityViewModel {
  25  public:
  26   // The |replaced_activity| is the activity which this proxy replaces. Note
  27   // that after the Init() call got called, this object will become invalid.
  28   // The |creator| should be informed when the object goes away.
  29   AppActivityProxy(AppActivity* replaced_activity,
  30                    AppActivityRegistry* creator);
  31
  32  protected:
  33   virtual ~AppActivityProxy();
  34
  35  // Activity overrides:
  36   virtual ActivityViewModel* GetActivityViewModel() override;
  37   virtual void SetCurrentState(ActivityState state) override;
  38   virtual ActivityState GetCurrentState() override;
  39   virtual bool IsVisible() override;
  40   virtual ActivityMediaState GetMediaState() override;
  41   virtual aura::Window* GetWindow() override;
  42   virtual content::WebContents* GetWebContents() override;
  43
  44   // ActivityViewModel overrides:
  45   virtual void Init() override;
  46   virtual SkColor GetRepresentativeColor() const override;
  47   virtual base::string16 GetTitle() const override;
  48   virtual gfx::ImageSkia GetIcon() const override;
  49   virtual bool UsesFrame() const override;
  50   virtual views::View* GetContentsView() override;
  51   virtual views::Widget* CreateWidget() override;
  52   virtual gfx::ImageSkia GetOverviewModeImage() override;
  53   virtual void PrepareContentsForOverview() override;
  54   virtual void ResetContentsView() override;
  55
  56  private:
  57   // The creator of this object which needs to be informed if the object gets
  58   // destroyed or the application should get restarted.
  59   AppActivityRegistry* app_activity_registry_;
  60
  61   // The presentation values.
  62   const base::string16 title_;
  63   const SkColor color_;
  64
  65   // The activity which gets replaced. It is used to sort the activity against
  66   // upon initialization. Once moved, this value gets reset since the object
  67   // can go away at any time.
  68   AppActivity* replaced_activity_;
  69
  70   // The associated view.
  71   views::View* view_;
  72
  73   // The content proxy.
  74   scoped_ptr<ContentProxy> content_proxy_;
  75
  76   // True if restart got already called.
  77   bool restart_called_;
  78
  79   DISALLOW_COPY_AND_ASSIGN(AppActivityProxy);
  80 };
  81
  82 }  // namespace athena
  83
  84 #endif  // ATHENA_CONTENT_APP_ACTIVITY_PROXY_H_