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Issue 354483004: Implement <appview> (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@app_view_skeleton
Patch Set: Added tests Created 6 years, 5 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "chrome/browser/guest_view/app_view/app_view_guest.h" 5 #include "chrome/browser/guest_view/app_view/app_view_guest.h"
6 6
7 // static 7 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
8 #include "chrome/browser/extensions/extension_service.h"
9 #include "chrome/browser/guest_view/app_view/app_view_constants.h"
10 #include "chrome/browser/guest_view/guest_view_manager.h"
11 #include "chrome/browser/profiles/profile.h"
12 #include "chrome/browser/renderer_context_menu/context_menu_delegate.h"
13 #include "chrome/browser/renderer_context_menu/render_view_context_menu.h"
14 #include "content/public/browser/render_view_host.h"
15 #include "content/public/common/renderer_preferences.h"
16 #include "extensions/browser/api/app_runtime/app_runtime_api.h"
17 #include "extensions/browser/event_router.h"
18 #include "extensions/browser/extension_host.h"
19 #include "extensions/browser/extension_system.h"
20 #include "extensions/browser/lazy_background_task_queue.h"
21 #include "extensions/browser/view_type_utils.h"
22 #include "extensions/common/api/app_runtime.h"
23 #include "extensions/common/extension_messages.h"
24 #include "ipc/ipc_message_macros.h"
25
26 namespace app_runtime = extensions::core_api::app_runtime;
27
28 using content::RenderFrameHost;
29 using content::WebContents;
30 using extensions::ExtensionHost;
31
32 namespace {
33
34 struct ResponseInfo {
35 scoped_refptr<const extensions::Extension> guest_extension;
36 base::WeakPtr<AppViewGuest> app_view_guest;
37 GuestViewBase::WebContentsCreatedCallback callback;
38
39 ResponseInfo(const extensions::Extension* guest_extension,
40 const base::WeakPtr<AppViewGuest>& app_view_guest,
41 const GuestViewBase::WebContentsCreatedCallback& callback)
42 : guest_extension(guest_extension),
43 app_view_guest(app_view_guest),
44 callback(callback) {}
45
46 ~ResponseInfo() {}
47 };
48
49 typedef std::map<int, linked_ptr<ResponseInfo> > PendingResponseMap;
50 static base::LazyInstance<PendingResponseMap> pending_response_map =
51 LAZY_INSTANCE_INITIALIZER;
52
53 } // namespace
54
55 // static.
8 const char AppViewGuest::Type[] = "appview"; 56 const char AppViewGuest::Type[] = "appview";
9 57
58 // static.
59 bool AppViewGuest::CompletePendingRequest(
60 const GURL& url,
61 int guest_instance_id,
62 content::BrowserContext* browser_context,
63 const std::string& guest_extension_id) {
64 PendingResponseMap* response_map = pending_response_map.Pointer();
65 PendingResponseMap::iterator it = response_map->find(guest_instance_id);
66 if (it == response_map->end()) {
67 // An app is sending invalid responses. We should probably kill it.
68 return false;
69 }
70
71 linked_ptr<ResponseInfo> response_info = it->second;
72 if (!response_info->app_view_guest ||
73 (response_info->guest_extension->id() != guest_extension_id)) {
74 // An app is trying to respond to an <appview> that didn't initiate
75 // communication with it. We should kill the app here.
76 return false;
77 }
78
79 response_info->app_view_guest->
80 CompleteCreateWebContents(url,
81 response_info->guest_extension,
82 response_info->callback);
83
84 response_map->erase(guest_instance_id);
85 return true;
86 }
87
10 AppViewGuest::AppViewGuest(content::BrowserContext* browser_context, 88 AppViewGuest::AppViewGuest(content::BrowserContext* browser_context,
11 int guest_instance_id) 89 int guest_instance_id)
12 : GuestView<AppViewGuest>(browser_context, guest_instance_id) { 90 : GuestView<AppViewGuest>(browser_context, guest_instance_id),
91 weak_ptr_factory_(this) {
13 } 92 }
14 93
15 AppViewGuest::~AppViewGuest() { 94 AppViewGuest::~AppViewGuest() {
16 } 95 }
17 96
97 extensions::WindowController* AppViewGuest::GetExtensionWindowController()
98 const {
99 return NULL;
100 }
101
102 content::WebContents* AppViewGuest::GetAssociatedWebContents() const {
103 return guest_web_contents();
104 }
105
106 bool AppViewGuest::OnMessageReceived(const IPC::Message& message) {
107 bool handled = true;
108 IPC_BEGIN_MESSAGE_MAP(AppViewGuest, message)
109 IPC_MESSAGE_HANDLER(ExtensionHostMsg_Request, OnRequest)
110 IPC_MESSAGE_UNHANDLED(handled = false)
111 IPC_END_MESSAGE_MAP()
112 return handled;
113 }
114
115 bool AppViewGuest::HandleContextMenu(const content::ContextMenuParams& params) {
116 ContextMenuDelegate* menu_delegate =
117 ContextMenuDelegate::FromWebContents(guest_web_contents());
118 DCHECK(menu_delegate);
119
120 scoped_ptr<RenderViewContextMenu> menu =
121 menu_delegate->BuildMenu(guest_web_contents(), params);
122 menu_delegate->ShowMenu(menu.Pass());
123 return true;
124 }
125
18 void AppViewGuest::CreateWebContents( 126 void AppViewGuest::CreateWebContents(
19 const std::string& embedder_extension_id, 127 const std::string& embedder_extension_id,
20 int embedder_render_process_id, 128 int embedder_render_process_id,
21 const base::DictionaryValue& create_params, 129 const base::DictionaryValue& create_params,
22 const WebContentsCreatedCallback& callback) { 130 const WebContentsCreatedCallback& callback) {
23 // TODO(fsamuel): Create a WebContents with the appropriate SiteInstance here. 131 std::string app_id;
24 // After the WebContents has been created, call the |callback|. 132 if (!create_params.GetString(appview::kAppID, &app_id)) {
25 // callback.Run(new_web_contents); 133 callback.Run(NULL);
134 return;
135 }
136
137 Profile* profile = Profile::FromBrowserContext(browser_context());
138 ExtensionService* service =
139 extensions::ExtensionSystem::Get(profile)->extension_service();
140 const extensions::Extension* guest_extension =
141 service->GetExtensionById(app_id, false);
142 const extensions::Extension* embedder_extension =
143 service->GetExtensionById(embedder_extension_id, false);
144
145 if (!guest_extension || !guest_extension->is_platform_app() ||
146 !embedder_extension | !embedder_extension->is_platform_app()) {
147 callback.Run(NULL);
148 return;
149 }
150
151 pending_response_map.Get().insert(
152 std::make_pair(GetGuestInstanceID(),
153 new ResponseInfo(guest_extension,
154 weak_ptr_factory_.GetWeakPtr(),
155 callback)));
156
157 extensions::LazyBackgroundTaskQueue* queue =
158 extensions::ExtensionSystem::Get(profile)->lazy_background_task_queue();
159 if (queue->ShouldEnqueueTask(profile, guest_extension)) {
160 queue->AddPendingTask(profile,
161 guest_extension->id(),
162 base::Bind(&AppViewGuest::LaunchAppAndFireEvent,
163 weak_ptr_factory_.GetWeakPtr(),
164 callback));
165 return;
166 }
167
168 extensions::ProcessManager* process_manager =
169 extensions::ExtensionSystem::Get(profile)->process_manager();
170 ExtensionHost* host =
171 process_manager->GetBackgroundHostForExtension(guest_extension->id());
172 DCHECK(host);
173 LaunchAppAndFireEvent(callback, host);
26 } 174 }
27 175
28 void AppViewGuest::DidAttachToEmbedder() { 176 void AppViewGuest::DidAttachToEmbedder() {
29 // This is called after the guest process has been attached to a host 177 // This is called after the guest process has been attached to a host
30 // element. This means that the host element knows how to route input 178 // element. This means that the host element knows how to route input
31 // events to the guest, and the guest knows how to get frames to the 179 // events to the guest, and the guest knows how to get frames to the
32 // embedder. 180 // embedder.
33 // TODO(fsamuel): Perform the initial navigation here. 181 guest_web_contents()->GetController().LoadURL(
182 url_, content::Referrer(), content::PAGE_TRANSITION_LINK, std::string());
34 } 183 }
184
185 void AppViewGuest::DidInitialize() {
186 extension_function_dispatcher_.reset(
187 new extensions::ExtensionFunctionDispatcher(browser_context(), this));
188 }
189
190 void AppViewGuest::OnRequest(const ExtensionHostMsg_Request_Params& params) {
191 extension_function_dispatcher_->Dispatch(
192 params, guest_web_contents()->GetRenderViewHost());
193 }
194
195 void AppViewGuest::CompleteCreateWebContents(
196 const GURL& url,
197 const extensions::Extension* guest_extension,
198 const WebContentsCreatedCallback& callback) {
199 if (!url.is_valid()) {
200 callback.Run(NULL);
201 return;
202 }
203 url_ = url;
204 guest_extension_id_ = guest_extension->id();
205
206 WebContents::CreateParams params(
207 browser_context(),
208 content::SiteInstance::CreateForURL(browser_context(),
209 guest_extension->url()));
210 params.guest_delegate = this;
211 callback.Run(WebContents::Create(params));
212 }
213
214 void AppViewGuest::LaunchAppAndFireEvent(
215 const WebContentsCreatedCallback& callback,
216 ExtensionHost* extension_host) {
217 Profile* profile = Profile::FromBrowserContext(browser_context());
218 extensions::ExtensionSystem* system =
219 extensions::ExtensionSystem::Get(browser_context());
220 bool has_event_listener = system->event_router()->ExtensionHasEventListener(
221 extension_host->extension()->id(),
222 app_runtime::OnAppEmbeddingRequest::kEventName);
223 if (!has_event_listener) {
224 callback.Run(NULL);
225 return;
226 }
227
228 scoped_ptr<base::DictionaryValue> embed_app_data(new base::DictionaryValue());
229 embed_app_data->SetInteger(appview::kGuestInstanceID, GetGuestInstanceID());
230 embed_app_data->SetString(appview::kEmbedderExtensionID,
231 embedder_extension_id());
232 extensions::AppRuntimeEventRouter::DispatchOnAppEmbeddingRequestEvent(
233 profile, embed_app_data.Pass(), extension_host->extension());
234 }
235
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