1 // Copyright (c) 2012 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_HUNG_RENDERER_VIEW_WIN_H_ 6 #define CHROME_BROWSER_UI_VIEWS_HUNG_RENDERER_VIEW_WIN_H_ 7 8 #include "base/basictypes.h" 9 #include "content/public/browser/web_contents.h" 10 11 // This class provides functionality to display a Windows 8 metro style hung 12 // renderer dialog. 13 class HungRendererDialogMetro { 14 public: 15 // Creates or returns the global instance of the HungRendererDialogMetro 16 // class 17 static HungRendererDialogMetro* Create(); 18 static HungRendererDialogMetro* GetInstance(); 19 20 void Show(content::WebContents* contents); 21 void Hide(content::WebContents* contents); 22 23 private: 24 HungRendererDialogMetro(); 25 ~HungRendererDialogMetro(); 26 27 // Handlers for the hang monitor dialog displayed in Windows 8 metro. 28 static void OnMetroKillProcess(); 29 static void OnMetroWait(); 30 31 // Resets Windows 8 metro specific state like whether the dialog was 32 // displayed, etc. 33 void ResetMetroState(); 34 35 content::WebContents* contents_; 36 37 // Set to true if the metro version of the hang dialog is displayed. 38 // Helps ensure that only one instance of the dialog is displayed at any 39 // given time. 40 bool metro_dialog_displayed_; 41 42 // Pointer to the global instance of the HungRendererDialogMetro class. 43 static HungRendererDialogMetro* g_instance_; 44 45 DISALLOW_COPY_AND_ASSIGN(HungRendererDialogMetro); 46 }; 47 48 #endif // CHROME_BROWSER_UI_VIEWS_HUNG_RENDERER_VIEW_WIN_H_ 49 50
