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Side by Side Diff: chrome/browser/task_manager/task_manager_background_resource_provider.cc

Issue 15196003: Create task_manager namespace and wrap classes related to TaskManager with it. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: RendererResource Created 7 years, 7 months ago
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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.
4
5 #include "chrome/browser/task_manager/task_manager_background_resource_provider. h"
6
7 #include <string>
8
9 #include "base/basictypes.h"
10 #include "base/i18n/rtl.h"
11 #include "base/string16.h"
12 #include "base/utf_string_conversions.h"
13 #include "chrome/browser/background/background_contents_service.h"
14 #include "chrome/browser/background/background_contents_service_factory.h"
15 #include "chrome/browser/browser_process.h"
16 #include "chrome/browser/extensions/extension_service.h"
17 #include "chrome/browser/profiles/profile.h"
18 #include "chrome/browser/profiles/profile_manager.h"
19 #include "chrome/browser/tab_contents/background_contents.h"
20 #include "chrome/common/chrome_notification_types.h"
21 #include "chrome/common/extensions/extension.h"
22 #include "content/public/browser/notification_service.h"
23 #include "content/public/browser/render_process_host.h"
24 #include "content/public/browser/render_view_host.h"
25 #include "content/public/browser/web_contents.h"
26 #include "grit/generated_resources.h"
27 #include "grit/theme_resources.h"
28 #include "ui/base/l10n/l10n_util.h"
29 #include "ui/base/resource/resource_bundle.h"
30
31 using content::RenderProcessHost;
32 using content::RenderViewHost;
33 using content::WebContents;
34 using extensions::Extension;
35
36 ////////////////////////////////////////////////////////////////////////////////
37 // TaskManagerBackgroundContentsResource class
38 ////////////////////////////////////////////////////////////////////////////////
39
40 gfx::ImageSkia* TaskManagerBackgroundContentsResource::default_icon_ = NULL;
41
42 // TODO(atwilson): http://crbug.com/116893
43 // HACK: if the process handle is invalid, we use the current process's handle.
44 // This preserves old behavior but is incorrect, and should be fixed.
45 TaskManagerBackgroundContentsResource::TaskManagerBackgroundContentsResource(
46 BackgroundContents* background_contents,
47 const string16& application_name)
48 : TaskManagerRendererResource(
49 background_contents->web_contents()->GetRenderProcessHost()->
50 GetHandle() ?
51 background_contents->web_contents()->GetRenderProcessHost()->
52 GetHandle() :
53 base::Process::Current().handle(),
54 background_contents->web_contents()->GetRenderViewHost()),
55 background_contents_(background_contents),
56 application_name_(application_name) {
57 // Just use the same icon that other extension resources do.
58 // TODO(atwilson): Use the favicon when that's available.
59 if (!default_icon_) {
60 ResourceBundle& rb = ResourceBundle::GetSharedInstance();
61 default_icon_ = rb.GetImageSkiaNamed(IDR_PLUGINS_FAVICON);
62 }
63 // Ensure that the string has the appropriate direction markers (see comment
64 // in TaskManagerTabContentsResource::GetTitle()).
65 base::i18n::AdjustStringForLocaleDirection(&application_name_);
66 }
67
68 TaskManagerBackgroundContentsResource::~TaskManagerBackgroundContentsResource(
69 ) {
70 }
71
72 string16 TaskManagerBackgroundContentsResource::GetTitle() const {
73 string16 title = application_name_;
74
75 if (title.empty()) {
76 // No title (can't locate the parent app for some reason) so just display
77 // the URL (properly forced to be LTR).
78 title = base::i18n::GetDisplayStringInLTRDirectionality(
79 UTF8ToUTF16(background_contents_->GetURL().spec()));
80 }
81 return l10n_util::GetStringFUTF16(IDS_TASK_MANAGER_BACKGROUND_PREFIX, title);
82 }
83
84 string16 TaskManagerBackgroundContentsResource::GetProfileName() const {
85 return string16();
86 }
87
88 gfx::ImageSkia TaskManagerBackgroundContentsResource::GetIcon() const {
89 return *default_icon_;
90 }
91
92 bool TaskManagerBackgroundContentsResource::IsBackground() const {
93 return true;
94 }
95
96 ////////////////////////////////////////////////////////////////////////////////
97 // TaskManagerBackgroundContentsResourceProvider class
98 ////////////////////////////////////////////////////////////////////////////////
99
100 TaskManagerBackgroundContentsResourceProvider::
101 TaskManagerBackgroundContentsResourceProvider(TaskManager* task_manager)
102 : updating_(false),
103 task_manager_(task_manager) {
104 }
105
106 TaskManagerBackgroundContentsResourceProvider::
107 ~TaskManagerBackgroundContentsResourceProvider() {
108 }
109
110 TaskManager::Resource*
111 TaskManagerBackgroundContentsResourceProvider::GetResource(
112 int origin_pid,
113 int render_process_host_id,
114 int routing_id) {
115 // If an origin PID was specified, the request is from a plugin, not the
116 // render view host process
117 if (origin_pid)
118 return NULL;
119
120 for (Resources::iterator i = resources_.begin(); i != resources_.end(); i++) {
121 WebContents* tab = i->first->web_contents();
122 if (tab->GetRenderProcessHost()->GetID() == render_process_host_id
123 && tab->GetRenderViewHost()->GetRoutingID() == routing_id) {
124 return i->second;
125 }
126 }
127
128 // Can happen if the page went away while a network request was being
129 // performed.
130 return NULL;
131 }
132
133 void TaskManagerBackgroundContentsResourceProvider::StartUpdating() {
134 DCHECK(!updating_);
135 updating_ = true;
136
137 // Add all the existing BackgroundContents from every profile, including
138 // incognito profiles.
139 ProfileManager* profile_manager = g_browser_process->profile_manager();
140 std::vector<Profile*> profiles(profile_manager->GetLoadedProfiles());
141 size_t num_default_profiles = profiles.size();
142 for (size_t i = 0; i < num_default_profiles; ++i) {
143 if (profiles[i]->HasOffTheRecordProfile()) {
144 profiles.push_back(profiles[i]->GetOffTheRecordProfile());
145 }
146 }
147 for (size_t i = 0; i < profiles.size(); ++i) {
148 BackgroundContentsService* background_contents_service =
149 BackgroundContentsServiceFactory::GetForProfile(profiles[i]);
150 std::vector<BackgroundContents*> contents =
151 background_contents_service->GetBackgroundContents();
152 ExtensionService* extension_service = profiles[i]->GetExtensionService();
153 for (std::vector<BackgroundContents*>::iterator iterator = contents.begin();
154 iterator != contents.end(); ++iterator) {
155 string16 application_name;
156 // Lookup the name from the parent extension.
157 if (extension_service) {
158 const string16& application_id =
159 background_contents_service->GetParentApplicationId(*iterator);
160 const Extension* extension = extension_service->GetExtensionById(
161 UTF16ToUTF8(application_id), false);
162 if (extension)
163 application_name = UTF8ToUTF16(extension->name());
164 }
165 Add(*iterator, application_name);
166 }
167 }
168
169 // Then we register for notifications to get new BackgroundContents.
170 registrar_.Add(this, chrome::NOTIFICATION_BACKGROUND_CONTENTS_OPENED,
171 content::NotificationService::AllBrowserContextsAndSources());
172 registrar_.Add(this, chrome::NOTIFICATION_BACKGROUND_CONTENTS_NAVIGATED,
173 content::NotificationService::AllBrowserContextsAndSources());
174 registrar_.Add(this, chrome::NOTIFICATION_BACKGROUND_CONTENTS_DELETED,
175 content::NotificationService::AllBrowserContextsAndSources());
176 }
177
178 void TaskManagerBackgroundContentsResourceProvider::StopUpdating() {
179 DCHECK(updating_);
180 updating_ = false;
181
182 // Unregister for notifications
183 registrar_.Remove(
184 this, chrome::NOTIFICATION_BACKGROUND_CONTENTS_OPENED,
185 content::NotificationService::AllBrowserContextsAndSources());
186 registrar_.Remove(
187 this, chrome::NOTIFICATION_BACKGROUND_CONTENTS_NAVIGATED,
188 content::NotificationService::AllBrowserContextsAndSources());
189 registrar_.Remove(
190 this, chrome::NOTIFICATION_BACKGROUND_CONTENTS_DELETED,
191 content::NotificationService::AllBrowserContextsAndSources());
192
193 // Delete all the resources.
194 STLDeleteContainerPairSecondPointers(resources_.begin(), resources_.end());
195
196 resources_.clear();
197 }
198
199 void TaskManagerBackgroundContentsResourceProvider::AddToTaskManager(
200 BackgroundContents* background_contents,
201 const string16& application_name) {
202 TaskManagerBackgroundContentsResource* resource =
203 new TaskManagerBackgroundContentsResource(background_contents,
204 application_name);
205 resources_[background_contents] = resource;
206 task_manager_->AddResource(resource);
207 }
208
209 void TaskManagerBackgroundContentsResourceProvider::Add(
210 BackgroundContents* contents, const string16& application_name) {
211 if (!updating_)
212 return;
213
214 // TODO(atwilson): http://crbug.com/116893
215 // We should check that the process handle is valid here, but it won't
216 // be in the case of NOTIFICATION_BACKGROUND_CONTENTS_OPENED.
217
218 // Should never add the same BackgroundContents twice.
219 DCHECK(resources_.find(contents) == resources_.end());
220 AddToTaskManager(contents, application_name);
221 }
222
223 void TaskManagerBackgroundContentsResourceProvider::Remove(
224 BackgroundContents* contents) {
225 if (!updating_)
226 return;
227 Resources::iterator iter = resources_.find(contents);
228 DCHECK(iter != resources_.end());
229
230 // Remove the resource from the Task Manager.
231 TaskManagerBackgroundContentsResource* resource = iter->second;
232 task_manager_->RemoveResource(resource);
233 // And from the provider.
234 resources_.erase(iter);
235 // Finally, delete the resource.
236 delete resource;
237 }
238
239 void TaskManagerBackgroundContentsResourceProvider::Observe(
240 int type,
241 const content::NotificationSource& source,
242 const content::NotificationDetails& details) {
243 switch (type) {
244 case chrome::NOTIFICATION_BACKGROUND_CONTENTS_OPENED: {
245 // Get the name from the parent application. If no parent application is
246 // found, just pass an empty string - BackgroundContentsResource::GetTitle
247 // will display the URL instead in this case. This should never happen
248 // except in rare cases when an extension is being unloaded or chrome is
249 // exiting while the task manager is displayed.
250 string16 application_name;
251 ExtensionService* service =
252 content::Source<Profile>(source)->GetExtensionService();
253 if (service) {
254 std::string application_id = UTF16ToUTF8(
255 content::Details<BackgroundContentsOpenedDetails>(details)->
256 application_id);
257 const Extension* extension =
258 service->GetExtensionById(application_id, false);
259 // Extension can be NULL when running unit tests.
260 if (extension)
261 application_name = UTF8ToUTF16(extension->name());
262 }
263 Add(content::Details<BackgroundContentsOpenedDetails>(details)->contents,
264 application_name);
265 // Opening a new BackgroundContents needs to force the display to refresh
266 // (applications may now be considered "background" that weren't before).
267 task_manager_->ModelChanged();
268 break;
269 }
270 case chrome::NOTIFICATION_BACKGROUND_CONTENTS_NAVIGATED: {
271 BackgroundContents* contents =
272 content::Details<BackgroundContents>(details).ptr();
273 // Should never get a NAVIGATED before OPENED.
274 DCHECK(resources_.find(contents) != resources_.end());
275 // Preserve the application name.
276 string16 application_name(
277 resources_.find(contents)->second->application_name());
278 Remove(contents);
279 Add(contents, application_name);
280 break;
281 }
282 case chrome::NOTIFICATION_BACKGROUND_CONTENTS_DELETED:
283 Remove(content::Details<BackgroundContents>(details).ptr());
284 // Closing a BackgroundContents needs to force the display to refresh
285 // (applications may now be considered "foreground" that weren't before).
286 task_manager_->ModelChanged();
287 break;
288 default:
289 NOTREACHED() << "Unexpected notification.";
290 return;
291 }
292 }
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