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 CHROME_BROWSER_GUESTVIEW_WEBVIEW_WEBVIEW_GUEST_H_
6 #define CHROME_BROWSER_GUESTVIEW_WEBVIEW_WEBVIEW_GUEST_H_
8 #include "base/observer_list.h"
9 #include "chrome/browser/extensions/tab_helper.h"
10 #include "chrome/browser/guestview/guestview.h"
11 #include "content/public/browser/notification_registrar.h"
12 #include "content/public/browser/web_contents_observer.h"
14 namespace extensions {
16 } // namespace extensions
18 // A WebViewGuest is a WebContentsObserver on the guest WebContents of a
19 // <webview> tag. It provides the browser-side implementation of the <webview>
20 // API and manages the lifetime of <webview> extension events. WebViewGuest is
21 // created on attachment. That is, when a guest WebContents is associated with
22 // a particular embedder WebContents. This happens on either initial navigation
23 // or through the use of the New Window API, when a new window is attached to
24 // a particular <webview>.
25 class WebViewGuest : public GuestView,
26 public content::NotificationObserver,
27 public content::WebContentsObserver {
29 WebViewGuest(content::WebContents* guest_web_contents,
30 const std::string& extension_id);
32 static WebViewGuest* From(int embedder_process_id, int instance_id);
33 static WebViewGuest* FromWebContents(content::WebContents* contents);
35 // GuestView implementation.
36 virtual void Attach(content::WebContents* embedder_web_contents,
37 const base::DictionaryValue& args) OVERRIDE;
38 virtual GuestView::Type GetViewType() const OVERRIDE;
39 virtual WebViewGuest* AsWebView() OVERRIDE;
40 virtual AdViewGuest* AsAdView() OVERRIDE;
42 // GuestDelegate implementation.
43 virtual void AddMessageToConsole(int32 level,
44 const base::string16& message,
46 const base::string16& source_id) OVERRIDE;
47 virtual void LoadProgressed(double progress) OVERRIDE;
48 virtual void Close() OVERRIDE;
49 virtual void DidAttach() OVERRIDE;
50 virtual void EmbedderDestroyed() OVERRIDE;
51 virtual void GuestProcessGone(base::TerminationStatus status) OVERRIDE;
52 virtual bool HandleKeyboardEvent(
53 const content::NativeWebKeyboardEvent& event) OVERRIDE;
54 virtual bool IsDragAndDropEnabled() OVERRIDE;
55 virtual bool IsOverridingUserAgent() const OVERRIDE;
56 virtual void LoadAbort(bool is_top_level,
58 const std::string& error_type) OVERRIDE;
59 virtual void RendererResponsive() OVERRIDE;
60 virtual void RendererUnresponsive() OVERRIDE;
61 virtual bool RequestPermission(
62 BrowserPluginPermissionType permission_type,
63 const base::DictionaryValue& request_info,
64 const PermissionResponseCallback& callback,
65 bool allowed_by_default) OVERRIDE;
66 virtual GURL ResolveURL(const std::string& src) OVERRIDE;
67 virtual void SizeChanged(const gfx::Size& old_size, const gfx::Size& new_size)
70 // NotificationObserver implementation.
71 virtual void Observe(int type,
72 const content::NotificationSource& source,
73 const content::NotificationDetails& details) OVERRIDE;
75 // Set the zoom factor.
76 virtual void SetZoom(double zoom_factor) OVERRIDE;
78 // Returns the current zoom factor.
81 // If possible, navigate the guest to |relative_index| entries away from the
82 // current navigation entry.
83 void Go(int relative_index);
88 enum PermissionResponseAction {
94 enum SetPermissionResult {
95 SET_PERMISSION_INVALID,
96 SET_PERMISSION_ALLOWED,
100 // Responds to the permission request |request_id| with |action| and
101 // |user_input|. Returns whether there was a pending request for the provided
103 SetPermissionResult SetPermission(int request_id,
104 PermissionResponseAction action,
105 const std::string& user_input);
107 // Overrides the user agent for this guest.
108 // This affects subsequent guest navigations.
109 void SetUserAgentOverride(const std::string& user_agent_override);
111 // Stop loading the guest.
114 // Kill the guest process.
117 // Clears data in the storage partition of this guest.
119 // Partition data that are newer than |removal_since| will be removed.
120 // |removal_mask| corresponds to bitmask in StoragePartition::RemoveDataMask.
121 bool ClearData(const base::Time remove_since,
123 const base::Closure& callback);
125 extensions::ScriptExecutor* script_executor() {
126 return script_executor_.get();
130 virtual ~WebViewGuest();
132 // A map to store the callback for a request keyed by the request's id.
133 struct PermissionResponseInfo {
134 PermissionResponseCallback callback;
135 BrowserPluginPermissionType permission_type;
136 bool allowed_by_default;
137 PermissionResponseInfo();
138 PermissionResponseInfo(const PermissionResponseCallback& callback,
139 BrowserPluginPermissionType permission_type,
140 bool allowed_by_default);
141 ~PermissionResponseInfo();
144 static void RecordUserInitiatedUMA(const PermissionResponseInfo& info,
146 // WebContentsObserver implementation.
147 virtual void DidCommitProvisionalLoadForFrame(
149 const base::string16& frame_unique_name,
152 content::PageTransition transition_type,
153 content::RenderViewHost* render_view_host) OVERRIDE;
154 virtual void DidFailProvisionalLoad(
156 const base::string16& frame_unique_name,
158 const GURL& validated_url,
160 const base::string16& error_description,
161 content::RenderViewHost* render_view_host) OVERRIDE;
162 virtual void DidStartProvisionalLoadForFrame(
164 int64 parent_frame_id,
166 const GURL& validated_url,
168 bool is_iframe_srcdoc,
169 content::RenderViewHost* render_view_host) OVERRIDE;
170 virtual void DocumentLoadedInFrame(
172 content::RenderViewHost* render_view_host) OVERRIDE;
173 virtual void DidStopLoading(
174 content::RenderViewHost* render_view_host) OVERRIDE;
175 virtual void WebContentsDestroyed(
176 content::WebContents* web_contents) OVERRIDE;
177 virtual void UserAgentOverrideSet(const std::string& user_agent) OVERRIDE;
179 // Called after the load handler is called in the guest's main frame.
180 void LoadHandlerCalled();
182 // Called when a redirect notification occurs.
183 void LoadRedirect(const GURL& old_url,
187 void AddWebViewToExtensionRendererState();
188 static void RemoveWebViewFromExtensionRendererState(
189 content::WebContents* web_contents);
191 void InjectChromeVoxIfNeeded(content::RenderViewHost* render_view_host);
193 ObserverList<extensions::TabHelper::ScriptExecutionObserver>
195 scoped_ptr<extensions::ScriptExecutor> script_executor_;
197 content::NotificationRegistrar notification_registrar_;
199 // A counter to generate a unique request id for a permission request.
200 // We only need the ids to be unique for a given WebViewGuest.
201 int next_permission_request_id_;
203 typedef std::map<int, PermissionResponseInfo> RequestMap;
204 RequestMap pending_permission_requests_;
206 // True if the user agent is overridden.
207 bool is_overriding_user_agent_;
209 // Indicates that the page needs to be reloaded once it has been attached to
211 bool pending_reload_on_attachment_;
213 // Main frame ID of last committed page.
214 int64 main_frame_id_;
216 // Set to |true| if ChromeVox was already injected in main frame.
217 bool chromevox_injected_;
219 // Stores the current zoom factor.
220 double current_zoom_factor_;
222 DISALLOW_COPY_AND_ASSIGN(WebViewGuest);
225 #endif // CHROME_BROWSER_GUESTVIEW_WEBVIEW_WEBVIEW_GUEST_H_