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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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