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| 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 CONTENT_BROWSER_WEB_CONTENTS_INTERSTITIAL_PAGE_IMPL_H_ | |
| 6 #define CONTENT_BROWSER_WEB_CONTENTS_INTERSTITIAL_PAGE_IMPL_H_ | |
| 7 | |
| 8 #include "base/compiler_specific.h" | |
| 9 #include "base/memory/scoped_ptr.h" | |
| 10 #include "base/memory/weak_ptr.h" | |
| 11 #include "content/browser/renderer_host/frame_tree.h" | |
| 12 #include "content/browser/renderer_host/render_view_host_delegate.h" | |
| 13 #include "content/browser/renderer_host/render_widget_host_delegate.h" | |
| 14 #include "content/public/browser/interstitial_page.h" | |
| 15 #include "content/public/browser/notification_observer.h" | |
| 16 #include "content/public/browser/notification_registrar.h" | |
| 17 #include "content/public/browser/web_contents_observer.h" | |
| 18 #include "content/public/common/renderer_preferences.h" | |
| 19 #include "url/gurl.h" | |
| 20 | |
| 21 namespace content { | |
| 22 class NavigationEntry; | |
| 23 class NavigationControllerImpl; | |
| 24 class RenderViewHostImpl; | |
| 25 class RenderWidgetHostView; | |
| 26 class WebContentsView; | |
| 27 class WebContentsImpl; | |
| 28 | |
| 29 enum ResourceRequestAction { | |
| 30 BLOCK, | |
| 31 RESUME, | |
| 32 CANCEL | |
| 33 }; | |
| 34 | |
| 35 class CONTENT_EXPORT InterstitialPageImpl | |
| 36 : public NON_EXPORTED_BASE(InterstitialPage), | |
| 37 public NotificationObserver, | |
| 38 public WebContentsObserver, | |
| 39 public RenderViewHostDelegate, | |
| 40 public RenderWidgetHostDelegate { | |
| 41 public: | |
| 42 // The different state of actions the user can take in an interstitial. | |
| 43 enum ActionState { | |
| 44 NO_ACTION, // No action has been taken yet. | |
| 45 PROCEED_ACTION, // "Proceed" was selected. | |
| 46 DONT_PROCEED_ACTION // "Don't proceed" was selected. | |
| 47 }; | |
| 48 | |
| 49 InterstitialPageImpl(WebContents* web_contents, | |
| 50 RenderWidgetHostDelegate* render_widget_host_delegate, | |
| 51 bool new_navigation, | |
| 52 const GURL& url, | |
| 53 InterstitialPageDelegate* delegate); | |
| 54 virtual ~InterstitialPageImpl(); | |
| 55 | |
| 56 // InterstitialPage implementation: | |
| 57 virtual void Show() OVERRIDE; | |
| 58 virtual void Hide() OVERRIDE; | |
| 59 virtual void DontProceed() OVERRIDE; | |
| 60 virtual void Proceed() OVERRIDE; | |
| 61 virtual RenderViewHost* GetRenderViewHostForTesting() const OVERRIDE; | |
| 62 virtual InterstitialPageDelegate* GetDelegateForTesting() OVERRIDE; | |
| 63 virtual void DontCreateViewForTesting() OVERRIDE; | |
| 64 virtual void SetSize(const gfx::Size& size) OVERRIDE; | |
| 65 virtual void Focus() OVERRIDE; | |
| 66 | |
| 67 // Allows the user to navigate away by disabling the interstitial, canceling | |
| 68 // the pending request, and unblocking the hidden renderer. The interstitial | |
| 69 // will stay visible until the navigation completes. | |
| 70 void CancelForNavigation(); | |
| 71 | |
| 72 // Focus the first (last if reverse is true) element in the interstitial page. | |
| 73 // Called when tab traversing. | |
| 74 void FocusThroughTabTraversal(bool reverse); | |
| 75 | |
| 76 RenderWidgetHostView* GetView(); | |
| 77 | |
| 78 // See description above field. | |
| 79 void set_reload_on_dont_proceed(bool value) { | |
| 80 reload_on_dont_proceed_ = value; | |
| 81 } | |
| 82 bool reload_on_dont_proceed() const { return reload_on_dont_proceed_; } | |
| 83 | |
| 84 #if defined(OS_ANDROID) | |
| 85 // Android shares a single platform window for all tabs, so we need to expose | |
| 86 // the RenderViewHost to properly route gestures to the interstitial. | |
| 87 RenderViewHost* GetRenderViewHost() const; | |
| 88 #endif | |
| 89 | |
| 90 protected: | |
| 91 // NotificationObserver method: | |
| 92 virtual void Observe(int type, | |
| 93 const NotificationSource& source, | |
| 94 const NotificationDetails& details) OVERRIDE; | |
| 95 | |
| 96 // WebContentsObserver implementation: | |
| 97 virtual void WebContentsDestroyed(WebContents* web_contents) OVERRIDE; | |
| 98 virtual void NavigationEntryCommitted( | |
| 99 const LoadCommittedDetails& load_details) OVERRIDE; | |
| 100 | |
| 101 // RenderViewHostDelegate implementation: | |
| 102 virtual RenderViewHostDelegateView* GetDelegateView() OVERRIDE; | |
| 103 virtual const GURL& GetURL() const OVERRIDE; | |
| 104 virtual void RenderViewTerminated(RenderViewHost* render_view_host, | |
| 105 base::TerminationStatus status, | |
| 106 int error_code) OVERRIDE; | |
| 107 virtual void DidNavigate( | |
| 108 RenderViewHost* render_view_host, | |
| 109 const ViewHostMsg_FrameNavigate_Params& params) OVERRIDE; | |
| 110 virtual void UpdateTitle(RenderViewHost* render_view_host, | |
| 111 int32 page_id, | |
| 112 const string16& title, | |
| 113 base::i18n::TextDirection title_direction) OVERRIDE; | |
| 114 virtual RendererPreferences GetRendererPrefs( | |
| 115 BrowserContext* browser_context) const OVERRIDE; | |
| 116 virtual WebPreferences GetWebkitPrefs() OVERRIDE; | |
| 117 virtual gfx::Rect GetRootWindowResizerRect() const OVERRIDE; | |
| 118 virtual void CreateNewWindow( | |
| 119 int route_id, | |
| 120 int main_frame_route_id, | |
| 121 const ViewHostMsg_CreateWindow_Params& params, | |
| 122 SessionStorageNamespace* session_storage_namespace) OVERRIDE; | |
| 123 virtual void CreateNewWidget(int route_id, | |
| 124 WebKit::WebPopupType popup_type) OVERRIDE; | |
| 125 virtual void CreateNewFullscreenWidget(int route_id) OVERRIDE; | |
| 126 virtual void ShowCreatedWindow(int route_id, | |
| 127 WindowOpenDisposition disposition, | |
| 128 const gfx::Rect& initial_pos, | |
| 129 bool user_gesture) OVERRIDE; | |
| 130 virtual void ShowCreatedWidget(int route_id, | |
| 131 const gfx::Rect& initial_pos) OVERRIDE; | |
| 132 virtual void ShowCreatedFullscreenWidget(int route_id) OVERRIDE; | |
| 133 | |
| 134 virtual SessionStorageNamespace* GetSessionStorageNamespace( | |
| 135 SiteInstance* instance) OVERRIDE; | |
| 136 | |
| 137 virtual FrameTree* GetFrameTree() OVERRIDE; | |
| 138 | |
| 139 // RenderWidgetHostDelegate implementation: | |
| 140 virtual void RenderWidgetDeleted( | |
| 141 RenderWidgetHostImpl* render_widget_host) OVERRIDE; | |
| 142 virtual bool PreHandleKeyboardEvent( | |
| 143 const NativeWebKeyboardEvent& event, | |
| 144 bool* is_keyboard_shortcut) OVERRIDE; | |
| 145 virtual void HandleKeyboardEvent( | |
| 146 const NativeWebKeyboardEvent& event) OVERRIDE; | |
| 147 #if defined(OS_WIN) && defined(USE_AURA) | |
| 148 virtual gfx::NativeViewAccessible GetParentNativeViewAccessible() OVERRIDE; | |
| 149 #endif | |
| 150 | |
| 151 bool enabled() const { return enabled_; } | |
| 152 WebContents* web_contents() const; | |
| 153 const GURL& url() const { return url_; } | |
| 154 | |
| 155 // Creates the RenderViewHost containing the interstitial content. | |
| 156 // Overriden in unit tests. | |
| 157 virtual RenderViewHost* CreateRenderViewHost(); | |
| 158 | |
| 159 // Creates the WebContentsView that shows the interstitial RVH. | |
| 160 // Overriden in unit tests. | |
| 161 virtual WebContentsView* CreateWebContentsView(); | |
| 162 | |
| 163 // Notification magic. | |
| 164 NotificationRegistrar notification_registrar_; | |
| 165 | |
| 166 private: | |
| 167 class InterstitialPageRVHDelegateView; | |
| 168 | |
| 169 // Disable the interstitial: | |
| 170 // - if it is not yet showing, then it won't be shown. | |
| 171 // - any command sent by the RenderViewHost will be ignored. | |
| 172 void Disable(); | |
| 173 | |
| 174 // Shutdown the RVH. We will be deleted by the time this method returns. | |
| 175 void Shutdown(RenderViewHostImpl* render_view_host); | |
| 176 | |
| 177 void OnNavigatingAwayOrTabClosing(); | |
| 178 | |
| 179 // Executes the passed action on the ResourceDispatcher (on the IO thread). | |
| 180 // Used to block/resume/cancel requests for the RenderViewHost hidden by this | |
| 181 // interstitial. | |
| 182 void TakeActionOnResourceDispatcher(ResourceRequestAction action); | |
| 183 | |
| 184 // The contents in which we are displayed. This is valid until Hide is | |
| 185 // called, at which point it will be set to NULL because the WebContents | |
| 186 // itself may be deleted. | |
| 187 WebContents* web_contents_; | |
| 188 | |
| 189 // The NavigationController for the content this page is being displayed over. | |
| 190 NavigationControllerImpl* controller_; | |
| 191 | |
| 192 // Delegate for dispatching keyboard events and accessing the native view. | |
| 193 RenderWidgetHostDelegate* render_widget_host_delegate_; | |
| 194 | |
| 195 // The URL that is shown when the interstitial is showing. | |
| 196 GURL url_; | |
| 197 | |
| 198 // Whether this interstitial is shown as a result of a new navigation (in | |
| 199 // which case a transient navigation entry is created). | |
| 200 bool new_navigation_; | |
| 201 | |
| 202 // Whether we should discard the pending navigation entry when not proceeding. | |
| 203 // This is to deal with cases where |new_navigation_| is true but a new | |
| 204 // pending entry was created since this interstitial was shown and we should | |
| 205 // not discard it. | |
| 206 bool should_discard_pending_nav_entry_; | |
| 207 | |
| 208 // If true and the user chooses not to proceed the target NavigationController | |
| 209 // is reloaded. This is used when two NavigationControllers are merged | |
| 210 // (CopyStateFromAndPrune). | |
| 211 // The default is false. | |
| 212 bool reload_on_dont_proceed_; | |
| 213 | |
| 214 // Whether this interstitial is enabled. See Disable() for more info. | |
| 215 bool enabled_; | |
| 216 | |
| 217 // Whether the Proceed or DontProceed methods have been called yet. | |
| 218 ActionState action_taken_; | |
| 219 | |
| 220 // The RenderViewHost displaying the interstitial contents. This is valid | |
| 221 // until Hide is called, at which point it will be set to NULL, signifying | |
| 222 // that shutdown has started. | |
| 223 RenderViewHostImpl* render_view_host_; | |
| 224 | |
| 225 // The frame tree structure of the current page. | |
| 226 FrameTree frame_tree_; | |
| 227 | |
| 228 // The IDs for the Render[View|Process]Host hidden by this interstitial. | |
| 229 int original_child_id_; | |
| 230 int original_rvh_id_; | |
| 231 | |
| 232 // Whether or not we should change the title of the contents when hidden (to | |
| 233 // revert it to its original value). | |
| 234 bool should_revert_web_contents_title_; | |
| 235 | |
| 236 // Whether or not the contents was loading resources when the interstitial was | |
| 237 // shown. We restore this state if the user proceeds from the interstitial. | |
| 238 bool web_contents_was_loading_; | |
| 239 | |
| 240 // Whether the ResourceDispatcherHost has been notified to cancel/resume the | |
| 241 // resource requests blocked for the RenderViewHost. | |
| 242 bool resource_dispatcher_host_notified_; | |
| 243 | |
| 244 // The original title of the contents that should be reverted to when the | |
| 245 // interstitial is hidden. | |
| 246 string16 original_web_contents_title_; | |
| 247 | |
| 248 // Our RenderViewHostViewDelegate, necessary for accelerators to work. | |
| 249 scoped_ptr<InterstitialPageRVHDelegateView> rvh_delegate_view_; | |
| 250 | |
| 251 // Settings passed to the renderer. | |
| 252 mutable RendererPreferences renderer_preferences_; | |
| 253 | |
| 254 bool create_view_; | |
| 255 | |
| 256 scoped_ptr<InterstitialPageDelegate> delegate_; | |
| 257 | |
| 258 base::WeakPtrFactory<InterstitialPageImpl> weak_ptr_factory_; | |
| 259 | |
| 260 scoped_refptr<SessionStorageNamespace> session_storage_namespace_; | |
| 261 | |
| 262 DISALLOW_COPY_AND_ASSIGN(InterstitialPageImpl); | |
| 263 }; | |
| 264 | |
| 265 } // namespace content | |
| 266 | |
| 267 #endif // CONTENT_BROWSER_WEB_CONTENTS_INTERSTITIAL_PAGE_IMPL_H_ | |
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