chrome/browser/ui/views/session_crashed_bubble_view.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 CHROME_BROWSER_UI_VIEWS_SESSION_CRASHED_BUBBLE_VIEW_H_
   6 #define CHROME_BROWSER_UI_VIEWS_SESSION_CRASHED_BUBBLE_VIEW_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
  10 #include "content/public/browser/notification_observer.h"
  11 #include "content/public/browser/notification_registrar.h"
  12 #include "content/public/browser/web_contents_observer.h"
  13 #include "ui/views/bubble/bubble_delegate.h"
  14 #include "ui/views/controls/button/button.h"
  15 #include "ui/views/controls/styled_label_listener.h"
  16
  17 namespace views {
  18 class Checkbox;
  19 class GridLayout;
  20 class LabelButton;
  21 class Widget;
  22 }
  23
  24 namespace content {
  25 class WebContents;
  26 class RenderViewHost;
  27 }
  28
  29 class Browser;
  30
  31 // It creates a session restore request bubble when the previous session has
  32 // crashed. It also presents an option to enable metrics reporting, if it not
  33 // enabled already.
  34 class SessionCrashedBubbleView
  35     : public views::BubbleDelegateView,
  36       public views::ButtonListener,
  37       public views::StyledLabelListener,
  38       public content::WebContentsObserver,
  39       public content::NotificationObserver,
  40       public TabStripModelObserver {
  41  public:
  42   static void Show(Browser* browser);
  43
  44  private:
  45   // A helper class that listens to browser removal event.
  46   class BrowserRemovalObserver;
  47
  48   SessionCrashedBubbleView(views::View* anchor_view,
  49                            Browser* browser,
  50                            content::WebContents* web_contents,
  51                            bool offer_uma_optin);
  52   virtual ~SessionCrashedBubbleView();
  53
  54   // Creates and shows the session crashed bubble, with |uma_opted_in_already|
  55   // indicating whether the user has already opted-in to UMA. It will be called
  56   // by Show. It takes ownership of |browser_observer|.
  57   static void ShowForReal(scoped_ptr<BrowserRemovalObserver> browser_observer,
  58                           bool uma_opted_in_already);
  59
  60   // WidgetDelegateView methods.
  61   virtual views::View* GetInitiallyFocusedView() OVERRIDE;
  62   virtual base::string16 GetWindowTitle() const OVERRIDE;
  63   virtual bool ShouldShowWindowTitle() const OVERRIDE;
  64   virtual bool ShouldShowCloseButton() const OVERRIDE;
  65   virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
  66
  67   // views::BubbleDelegateView methods.
  68   virtual void Init() OVERRIDE;
  69
  70   // views::ButtonListener methods.
  71   virtual void ButtonPressed(views::Button* sender,
  72                              const ui::Event& event) OVERRIDE;
  73
  74   // views::StyledLabelListener methods.
  75   virtual void StyledLabelLinkClicked(const gfx::Range& range,
  76                                       int event_flags) OVERRIDE;
  77
  78   // content::WebContentsObserver methods.
  79   virtual void DidStartNavigationToPendingEntry(
  80       const GURL& url,
  81       content::NavigationController::ReloadType reload_type) OVERRIDE;
  82   virtual void DidFinishLoad(content::RenderFrameHost* render_frame_host,
  83                              const GURL& validated_url) OVERRIDE;
  84   virtual void WasShown() OVERRIDE;
  85   virtual void WasHidden() OVERRIDE;
  86
  87   // content::NotificationObserver methods.
  88   virtual void Observe(
  89       int type,
  90       const content::NotificationSource& source,
  91       const content::NotificationDetails& details) OVERRIDE;
  92
  93   // TabStripModelObserver methods.
  94   // When the tab with current bubble is being dragged and dropped to a new
  95   // window or to another window, the bubble will be dismissed as if the user
  96   // chose not to restore the previous session.
  97   virtual void TabDetachedAt(
  98       content::WebContents* contents,
  99       int index) OVERRIDE;
 100
 101   // Create the view for user to opt in to Uma.
 102   void CreateUmaOptinView(views::GridLayout* layout);
 103
 104   // Restore previous session after user selects so.
 105   void RestorePreviousSession(views::Button* sender);
 106
 107   // Close and destroy the bubble.
 108   void CloseBubble();
 109
 110   content::NotificationRegistrar registrar_;
 111
 112   // Used for opening the question mark link as well as access the tab strip.
 113   Browser* browser_;
 114
 115   // The web content associated with current bubble.
 116   content::WebContents* web_contents_;
 117
 118   // Button for the user to confirm a session restore.
 119   views::LabelButton* restore_button_;
 120
 121   // Checkbox for the user to opt-in to UMA reporting.
 122   views::Checkbox* uma_option_;
 123
 124   // Whether or not the UMA opt-in option should be shown.
 125   bool offer_uma_optin_;
 126
 127   // Whether or not a navigation has started on current tab.
 128   bool started_navigation_;
 129
 130   // Whether or not the user chose to restore previous session. It is used to
 131   // collect bubble usage stats.
 132   bool restored_;
 133
 134   DISALLOW_COPY_AND_ASSIGN(SessionCrashedBubbleView);
 135 };
 136
 137 #endif  // CHROME_BROWSER_UI_VIEWS_SESSION_CRASHED_BUBBLE_VIEW_H_