athena/content/web_activity.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_PUBLIC_WEB_ACTIVITY_H_
   6 #define ATHENA_CONTENT_PUBLIC_WEB_ACTIVITY_H_
   7
   8 #include <vector>
   9
  10 #include "athena/activity/public/activity.h"
  11 #include "athena/activity/public/activity_view_model.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "base/strings/string16.h"
  15 #include "content/public/browser/web_contents_observer.h"
  16 #include "ui/gfx/image/image_skia.h"
  17
  18 class SkBitmap;
  19
  20 namespace content {
  21 class BrowserContext;
  22 class WebContents;
  23 }
  24
  25 namespace gfx {
  26 class Size;
  27 }
  28
  29 namespace views {
  30 class WebView;
  31 class WidgetDelegate;
  32 }
  33
  34 namespace athena {
  35
  36 class AthenaWebView;
  37 class ContentProxy;
  38
  39 class WebActivity : public Activity,
  40                     public ActivityViewModel,
  41                     public content::WebContentsObserver {
  42  public:
  43   WebActivity(content::BrowserContext* context,
  44               const base::string16& title,
  45               const GURL& gurl);
  46   explicit WebActivity(content::WebContents* contents);
  47
  48  protected:
  49   ~WebActivity() override;
  50
  51  // Activity:
  52   athena::ActivityViewModel* GetActivityViewModel() override;
  53   void SetCurrentState(ActivityState state) override;
  54   ActivityState GetCurrentState() override;
  55   bool IsVisible() override;
  56   ActivityMediaState GetMediaState() override;
  57   aura::Window* GetWindow() override;
  58   content::WebContents* GetWebContents() override;
  59
  60   // ActivityViewModel:
  61   void Init() override;
  62   SkColor GetRepresentativeColor() const override;
  63   base::string16 GetTitle() const override;
  64   gfx::ImageSkia GetIcon() const override;
  65   void SetActivityView(ActivityView* activity_view) override;
  66   bool UsesFrame() const override;
  67   views::View* GetContentsView() override;
  68   gfx::ImageSkia GetOverviewModeImage() override;
  69   void PrepareContentsForOverview() override;
  70   void ResetContentsView() override;
  71
  72   // content::WebContentsObserver:
  73   void DidNavigateMainFrame(
  74       const content::LoadCommittedDetails& details,
  75       const content::FrameNavigateParams& params) override;
  76   void TitleWasSet(content::NavigationEntry* entry, bool explicit_set) override;
  77   void DidUpdateFaviconURL(
  78       const std::vector<content::FaviconURL>& candidates) override;
  79   void DidChangeThemeColor(SkColor theme_color) override;
  80
  81  private:
  82   // Called when a favicon download initiated in DidUpdateFaviconURL()
  83   // has completed.
  84   void OnDidDownloadFavicon(
  85       int id,
  86       int http_status_code,
  87       const GURL& url,
  88       const std::vector<SkBitmap>& bitmaps,
  89       const std::vector<gfx::Size>& original_bitmap_sizes);
  90
  91   // Hiding the contet proxy and showing the real content instead.
  92   void HideContentProxy();
  93
  94   // Showing a content proxy instead of the real content to save resoruces.
  95   void ShowContentProxy();
  96
  97   content::BrowserContext* browser_context_;
  98   AthenaWebView* web_view_;
  99   const base::string16 title_;
 100   SkColor title_color_;
 101   gfx::ImageSkia icon_;
 102
 103   // The current state for this activity.
 104   ActivityState current_state_;
 105
 106   // The content proxy.
 107   scoped_ptr<ContentProxy> content_proxy_;
 108
 109   // WebActivity does not take ownership of |activity_view_|. If the view is
 110   // destroyed before the activity, then it must be reset using
 111   // SetActivityView(nullptr).
 112   ActivityView* activity_view_;
 113
 114   base::WeakPtrFactory<WebActivity> weak_ptr_factory_;
 115
 116   DISALLOW_COPY_AND_ASSIGN(WebActivity);
 117 };
 118
 119 }  // namespace athena
 120
 121 #endif  // ATHENA_CONTENT_WEB_ACTIVITY_H_