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 string16& message,
46 const string16& source_id) OVERRIDE;
47 virtual void LoadProgressed(double progress) OVERRIDE;
48 virtual void Close() OVERRIDE;
49 virtual void EmbedderDestroyed() OVERRIDE;
50 virtual void GuestProcessGone(base::TerminationStatus status) OVERRIDE;
51 virtual bool HandleKeyboardEvent(
52 const content::NativeWebKeyboardEvent& event) OVERRIDE;
53 virtual bool IsDragAndDropEnabled() OVERRIDE;
54 virtual bool IsOverridingUserAgent() const OVERRIDE;
55 virtual void LoadAbort(bool is_top_level,
57 const std::string& error_type) OVERRIDE;
58 virtual void RendererResponsive() OVERRIDE;
59 virtual void RendererUnresponsive() OVERRIDE;
60 virtual bool RequestPermission(
61 BrowserPluginPermissionType permission_type,
62 const base::DictionaryValue& request_info,
63 const PermissionResponseCallback& callback,
64 bool allowed_by_default) OVERRIDE;
65 virtual GURL ResolveURL(const std::string& src) OVERRIDE;
66 virtual void SizeChanged(const gfx::Size& old_size, const gfx::Size& new_size)
69 // NotificationObserver implementation.
70 virtual void Observe(int type,
71 const content::NotificationSource& source,
72 const content::NotificationDetails& details) OVERRIDE;
74 // If possible, navigate the guest to |relative_index| entries away from the
75 // current navigation entry.
76 void Go(int relative_index);
81 enum PermissionResponseAction {
87 enum SetPermissionResult {
88 SET_PERMISSION_INVALID,
89 SET_PERMISSION_ALLOWED,
93 // Responds to the permission request |request_id| with |action| and
94 // |user_input|. Returns whether there was a pending request for the provided
96 SetPermissionResult SetPermission(int request_id,
97 PermissionResponseAction action,
98 const std::string& user_input);
100 // Overrides the user agent for this guest.
101 // This affects subsequent guest navigations.
102 void SetUserAgentOverride(const std::string& user_agent_override);
104 // Stop loading the guest.
107 // Kill the guest process.
110 // Clears data in the storage partition of this guest.
112 // Partition data that are newer than |removal_since| will be removed.
113 // |removal_mask| corresponds to bitmask in StoragePartition::RemoveDataMask.
114 bool ClearData(const base::Time remove_since,
116 const base::Closure& callback);
118 extensions::ScriptExecutor* script_executor() {
119 return script_executor_.get();
123 virtual ~WebViewGuest();
125 // WebContentsObserver implementation.
126 virtual void DidCommitProvisionalLoadForFrame(
128 const string16& frame_unique_name,
131 content::PageTransition transition_type,
132 content::RenderViewHost* render_view_host) OVERRIDE;
133 virtual void DidFailProvisionalLoad(
135 const string16& frame_unique_name,
137 const GURL& validated_url,
139 const string16& error_description,
140 content::RenderViewHost* render_view_host) OVERRIDE;
141 virtual void DidStartProvisionalLoadForFrame(
143 int64 parent_frame_id,
145 const GURL& validated_url,
147 bool is_iframe_srcdoc,
148 content::RenderViewHost* render_view_host) OVERRIDE;
149 virtual void DidStopLoading(
150 content::RenderViewHost* render_view_host) OVERRIDE;
151 virtual void WebContentsDestroyed(
152 content::WebContents* web_contents) OVERRIDE;
154 // Called after the load handler is called in the guest's main frame.
155 void LoadHandlerCalled();
157 // Called when a redirect notification occurs.
158 void LoadRedirect(const GURL& old_url,
162 static bool AllowChromeExtensionURLs();
164 void AddWebViewToExtensionRendererState();
165 static void RemoveWebViewFromExtensionRendererState(
166 content::WebContents* web_contents);
168 ObserverList<extensions::TabHelper::ScriptExecutionObserver>
170 scoped_ptr<extensions::ScriptExecutor> script_executor_;
172 content::NotificationRegistrar notification_registrar_;
174 // A counter to generate a unique request id for a permission request.
175 // We only need the ids to be unique for a given WebViewGuest.
176 int next_permission_request_id_;
178 // A map to store the callback for a request keyed by the request's id.
179 struct PermissionResponseInfo {
180 PermissionResponseCallback callback;
181 bool allowed_by_default;
182 PermissionResponseInfo();
183 PermissionResponseInfo(const PermissionResponseCallback& callback,
184 bool allowed_by_default);
185 ~PermissionResponseInfo();
187 typedef std::map<int, PermissionResponseInfo> RequestMap;
188 RequestMap pending_permission_requests_;
190 // True if the user agent is overridden.
191 bool is_overriding_user_agent_;
193 DISALLOW_COPY_AND_ASSIGN(WebViewGuest);
196 #endif // CHROME_BROWSER_GUESTVIEW_WEBVIEW_WEBVIEW_GUEST_H_