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 bool 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   ~SessionCrashedBubbleView() override;
  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   views::View* GetInitiallyFocusedView() override;
  62   base::string16 GetWindowTitle() const override;
  63   bool ShouldShowWindowTitle() const override;
  64   bool ShouldShowCloseButton() const override;
  65   void OnWidgetDestroying(views::Widget* widget) override;
  66
  67   // views::BubbleDelegateView methods.
  68   void Init() override;
  69
  70   // views::ButtonListener methods.
  71   void ButtonPressed(views::Button* sender, const ui::Event& event) override;
  72
  73   // views::StyledLabelListener methods.
  74   void StyledLabelLinkClicked(const gfx::Range& range,
  75                               int event_flags) override;
  76
  77   // content::WebContentsObserver methods.
  78   void DidStartNavigationToPendingEntry(
  79       const GURL& url,
  80       content::NavigationController::ReloadType reload_type) override;
  81   void DidFinishLoad(content::RenderFrameHost* render_frame_host,
  82                      const GURL& validated_url) override;
  83   void WasShown() override;
  84   void WasHidden() override;
  85
  86   // content::NotificationObserver methods.
  87   void Observe(int type,
  88                const content::NotificationSource& source,
  89                const content::NotificationDetails& details) override;
  90
  91   // TabStripModelObserver methods.
  92   // When the tab with current bubble is being dragged and dropped to a new
  93   // window or to another window, the bubble will be dismissed as if the user
  94   // chose not to restore the previous session.
  95   void TabDetachedAt(content::WebContents* contents, int index) override;
  96
  97   // Create the view for the user to opt in to UMA.
  98   views::View* CreateUMAOptinView();
  99
 100   // Restore previous session after user selects so.
 101   void RestorePreviousSession(views::Button* sender);
 102
 103   // Close and destroy the bubble.
 104   void CloseBubble();
 105
 106   content::NotificationRegistrar registrar_;
 107
 108   // Used for opening the question mark link as well as access the tab strip.
 109   Browser* browser_;
 110
 111   // The web content associated with current bubble.
 112   content::WebContents* web_contents_;
 113
 114   // Button for the user to confirm a session restore.
 115   views::LabelButton* restore_button_;
 116
 117   // Checkbox for the user to opt-in to UMA reporting.
 118   views::Checkbox* uma_option_;
 119
 120   // Whether or not the UMA opt-in option should be shown.
 121   bool offer_uma_optin_;
 122
 123   // Whether or not a navigation has started on current tab.
 124   bool started_navigation_;
 125
 126   // Whether or not the user chose to restore previous session. It is used to
 127   // collect bubble usage stats.
 128   bool restored_;
 129
 130   DISALLOW_COPY_AND_ASSIGN(SessionCrashedBubbleView);
 131 };
 132
 133 #endif  // CHROME_BROWSER_UI_VIEWS_SESSION_CRASHED_BUBBLE_VIEW_H_