1 // Copyright 2013 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.
5 #ifndef CONTENT_BROWSER_FRAME_HOST_INTERSTITIAL_PAGE_IMPL_H_
6 #define CONTENT_BROWSER_FRAME_HOST_INTERSTITIAL_PAGE_IMPL_H_
8 #include "base/compiler_specific.h"
9 #include "base/memory/scoped_ptr.h"
10 #include "base/memory/weak_ptr.h"
11 #include "content/browser/frame_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"
22 class NavigationEntry;
23 class NavigationControllerImpl;
24 class RenderViewHostImpl;
25 class RenderWidgetHostView;
26 class WebContentsView;
27 class WebContentsImpl;
29 enum ResourceRequestAction {
35 class CONTENT_EXPORT InterstitialPageImpl
36 : public NON_EXPORTED_BASE(InterstitialPage),
37 public NotificationObserver,
38 public WebContentsObserver,
39 public RenderViewHostDelegate,
40 public RenderWidgetHostDelegate {
42 // The different state of actions the user can take in an interstitial.
44 NO_ACTION, // No action has been taken yet.
45 PROCEED_ACTION, // "Proceed" was selected.
46 DONT_PROCEED_ACTION // "Don't proceed" was selected.
49 InterstitialPageImpl(WebContents* web_contents,
50 RenderWidgetHostDelegate* render_widget_host_delegate,
53 InterstitialPageDelegate* delegate);
54 virtual ~InterstitialPageImpl();
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;
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();
72 // Focus the first (last if reverse is true) element in the interstitial page.
73 // Called when tab traversing.
74 void FocusThroughTabTraversal(bool reverse);
76 RenderWidgetHostView* GetView();
78 // See description above field.
79 void set_reload_on_dont_proceed(bool value) {
80 reload_on_dont_proceed_ = value;
82 bool reload_on_dont_proceed() const { return reload_on_dont_proceed_; }
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;
91 // NotificationObserver method:
92 virtual void Observe(int type,
93 const NotificationSource& source,
94 const NotificationDetails& details) OVERRIDE;
96 // WebContentsObserver implementation:
97 virtual void WebContentsDestroyed(WebContents* web_contents) OVERRIDE;
98 virtual void NavigationEntryCommitted(
99 const LoadCommittedDetails& load_details) OVERRIDE;
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,
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(
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;
134 virtual SessionStorageNamespace* GetSessionStorageNamespace(
135 SiteInstance* instance) OVERRIDE;
137 virtual FrameTree* GetFrameTree() OVERRIDE;
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;
151 bool enabled() const { return enabled_; }
152 WebContents* web_contents() const;
153 const GURL& url() const { return url_; }
155 // Creates the RenderViewHost containing the interstitial content.
156 // Overriden in unit tests.
157 virtual RenderViewHost* CreateRenderViewHost();
159 // Creates the WebContentsView that shows the interstitial RVH.
160 // Overriden in unit tests.
161 virtual WebContentsView* CreateWebContentsView();
163 // Notification magic.
164 NotificationRegistrar notification_registrar_;
167 class InterstitialPageRVHDelegateView;
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.
174 // Shutdown the RVH. We will be deleted by the time this method returns.
175 void Shutdown(RenderViewHostImpl* render_view_host);
177 void OnNavigatingAwayOrTabClosing();
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
182 void TakeActionOnResourceDispatcher(ResourceRequestAction action);
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_;
189 // The NavigationController for the content this page is being displayed over.
190 NavigationControllerImpl* controller_;
192 // Delegate for dispatching keyboard events and accessing the native view.
193 RenderWidgetHostDelegate* render_widget_host_delegate_;
195 // The URL that is shown when the interstitial is showing.
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_;
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
206 bool should_discard_pending_nav_entry_;
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_;
214 // Whether this interstitial is enabled. See Disable() for more info.
217 // Whether the Proceed or DontProceed methods have been called yet.
218 ActionState action_taken_;
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_;
225 // The frame tree structure of the current page.
226 FrameTree frame_tree_;
228 // The IDs for the Render[View|Process]Host hidden by this interstitial.
229 int original_child_id_;
230 int original_rvh_id_;
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_;
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_;
240 // Whether the ResourceDispatcherHost has been notified to cancel/resume the
241 // resource requests blocked for the RenderViewHost.
242 bool resource_dispatcher_host_notified_;
244 // The original title of the contents that should be reverted to when the
245 // interstitial is hidden.
246 string16 original_web_contents_title_;
248 // Our RenderViewHostViewDelegate, necessary for accelerators to work.
249 scoped_ptr<InterstitialPageRVHDelegateView> rvh_delegate_view_;
251 // Settings passed to the renderer.
252 mutable RendererPreferences renderer_preferences_;
256 scoped_ptr<InterstitialPageDelegate> delegate_;
258 base::WeakPtrFactory<InterstitialPageImpl> weak_ptr_factory_;
260 scoped_refptr<SessionStorageNamespace> session_storage_namespace_;
262 DISALLOW_COPY_AND_ASSIGN(InterstitialPageImpl);
265 } // namespace content
267 #endif // CONTENT_BROWSER_FRAME_HOST_INTERSTITIAL_PAGE_IMPL_H_