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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 "content/browser/host_zoom_map_impl.h" | 5 #include "content/browser/host_zoom_map_impl.h" |
6 | 6 |
7 #include <algorithm> | |
7 #include <cmath> | 8 #include <cmath> |
8 | 9 |
9 #include "base/strings/string_piece.h" | 10 #include "base/strings/string_piece.h" |
10 #include "base/strings/utf_string_conversions.h" | 11 #include "base/strings/utf_string_conversions.h" |
11 #include "base/values.h" | 12 #include "base/values.h" |
13 #include "content/browser/frame_host/navigation_entry_impl.h" | |
12 #include "content/browser/renderer_host/render_process_host_impl.h" | 14 #include "content/browser/renderer_host/render_process_host_impl.h" |
13 #include "content/browser/renderer_host/render_view_host_impl.h" | 15 #include "content/browser/renderer_host/render_view_host_impl.h" |
16 #include "content/browser/web_contents/web_contents_impl.h" | |
14 #include "content/common/view_messages.h" | 17 #include "content/common/view_messages.h" |
15 #include "content/public/browser/browser_context.h" | 18 #include "content/public/browser/browser_context.h" |
16 #include "content/public/browser/browser_thread.h" | 19 #include "content/public/browser/browser_thread.h" |
17 #include "content/public/browser/notification_service.h" | 20 #include "content/public/browser/notification_service.h" |
18 #include "content/public/browser/notification_types.h" | 21 #include "content/public/browser/notification_types.h" |
19 #include "content/public/browser/resource_context.h" | 22 #include "content/public/browser/resource_context.h" |
20 #include "content/public/common/page_zoom.h" | 23 #include "content/public/common/page_zoom.h" |
21 #include "net/base/net_util.h" | 24 #include "net/base/net_util.h" |
22 | 25 |
23 static const char* kHostZoomMapKeyName = "content_host_zoom_map"; | 26 static const char* kHostZoomMapKeyName = "content_host_zoom_map"; |
24 | 27 |
25 namespace content { | 28 namespace content { |
26 | 29 |
27 HostZoomMap* HostZoomMap::GetForBrowserContext(BrowserContext* context) { | 30 HostZoomMap* HostZoomMap::GetForBrowserContext(BrowserContext* context) { |
28 HostZoomMapImpl* rv = static_cast<HostZoomMapImpl*>( | 31 HostZoomMapImpl* rv = static_cast<HostZoomMapImpl*>( |
29 context->GetUserData(kHostZoomMapKeyName)); | 32 context->GetUserData(kHostZoomMapKeyName)); |
30 if (!rv) { | 33 if (!rv) { |
31 rv = new HostZoomMapImpl(); | 34 rv = new HostZoomMapImpl(); |
32 context->SetUserData(kHostZoomMapKeyName, rv); | 35 context->SetUserData(kHostZoomMapKeyName, rv); |
33 } | 36 } |
34 return rv; | 37 return rv; |
35 } | 38 } |
36 | 39 |
40 // Helper function for setting/getting zoom levels for WebContents without | |
41 // having to import HostZoomMapImpl everywhere. | |
42 double HostZoomMap::GetZoomLevel(const WebContents* web_contents) { | |
43 HostZoomMapImpl* host_zoom_map = static_cast<HostZoomMapImpl*>( | |
44 HostZoomMap::GetForBrowserContext(web_contents->GetBrowserContext())); | |
45 return host_zoom_map->GetZoomLevelForWebContents( | |
46 *static_cast<const WebContentsImpl*>(web_contents)); | |
47 } | |
48 | |
49 void HostZoomMap::SetZoomLevel(const WebContents* web_contents, double level) { | |
50 HostZoomMapImpl* host_zoom_map = static_cast<HostZoomMapImpl*>( | |
51 HostZoomMap::GetForBrowserContext(web_contents->GetBrowserContext())); | |
52 host_zoom_map->SetZoomLevelForWebContents( | |
53 *static_cast<const WebContentsImpl*>(web_contents), level); | |
54 } | |
55 | |
37 HostZoomMapImpl::HostZoomMapImpl() | 56 HostZoomMapImpl::HostZoomMapImpl() |
38 : default_zoom_level_(0.0) { | 57 : default_zoom_level_(0.0) { |
39 registrar_.Add( | 58 registrar_.Add( |
40 this, NOTIFICATION_RENDER_VIEW_HOST_WILL_CLOSE_RENDER_VIEW, | 59 this, NOTIFICATION_RENDER_VIEW_HOST_WILL_CLOSE_RENDER_VIEW, |
41 NotificationService::AllSources()); | 60 NotificationService::AllSources()); |
42 } | 61 } |
43 | 62 |
44 void HostZoomMapImpl::CopyFrom(HostZoomMap* copy_interface) { | 63 void HostZoomMapImpl::CopyFrom(HostZoomMap* copy_interface) { |
45 // This can only be called on the UI thread to avoid deadlocks, otherwise | 64 // This can only be called on the UI thread to avoid deadlocks, otherwise |
46 // UI: a.CopyFrom(b); | 65 // UI: a.CopyFrom(b); |
(...skipping 140 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
187 void HostZoomMapImpl::SetDefaultZoomLevel(double level) { | 206 void HostZoomMapImpl::SetDefaultZoomLevel(double level) { |
188 default_zoom_level_ = level; | 207 default_zoom_level_ = level; |
189 } | 208 } |
190 | 209 |
191 scoped_ptr<HostZoomMap::Subscription> | 210 scoped_ptr<HostZoomMap::Subscription> |
192 HostZoomMapImpl::AddZoomLevelChangedCallback( | 211 HostZoomMapImpl::AddZoomLevelChangedCallback( |
193 const ZoomLevelChangedCallback& callback) { | 212 const ZoomLevelChangedCallback& callback) { |
194 return zoom_level_changed_callbacks_.Add(callback); | 213 return zoom_level_changed_callbacks_.Add(callback); |
195 } | 214 } |
196 | 215 |
216 double HostZoomMapImpl::GetZoomLevelForWebContents( | |
217 const WebContentsImpl& web_contents_impl) const { | |
218 int render_process_id = web_contents_impl.GetRenderProcessHost()->GetID(); | |
219 int routing_id = web_contents_impl.GetRenderViewHost()->GetRoutingID(); | |
220 | |
221 if (UsesTemporaryZoomLevel(render_process_id, routing_id)) | |
222 return GetTemporaryZoomLevel(render_process_id, routing_id); | |
223 | |
224 // Since zoom map is updated using the url as stored in the navigation | |
225 // controller, we use that URL to get the zoom level. | |
226 GURL url; | |
227 NavigationEntry* entry = | |
228 web_contents_impl.GetController().GetLastCommittedEntry(); | |
229 if (entry) | |
230 url = entry->GetURL(); | |
231 return GetZoomLevelForHostAndScheme(url.scheme(), | |
232 net::GetHostOrSpecFromURL(url)); | |
233 } | |
234 | |
235 void HostZoomMapImpl::SetZoomLevelForWebContents( | |
236 const WebContentsImpl& web_contents_impl, | |
237 double level) { | |
238 int render_process_id = web_contents_impl.GetRenderProcessHost()->GetID(); | |
239 int render_view_id = web_contents_impl.GetRenderViewHost()->GetRoutingID(); | |
240 if (UsesTemporaryZoomLevel(render_process_id, render_view_id)) { | |
241 | |
242 SetTemporaryZoomLevel(render_process_id, render_view_id, level); | |
243 } else { | |
244 SetZoomLevelForHost( | |
245 net::GetHostOrSpecFromURL(web_contents_impl.GetLastCommittedURL()), | |
246 level); | |
247 } | |
248 } | |
249 | |
250 void HostZoomMapImpl::SetZoomLevelForView(int render_process_id, | |
251 int render_view_id, | |
252 double level, | |
253 const std::string& host) { | |
254 if (UsesTemporaryZoomLevel(render_process_id, render_view_id)) | |
255 SetTemporaryZoomLevel(render_process_id, render_view_id, level); | |
256 else | |
257 SetZoomLevelForHost(host, level); | |
258 } | |
259 | |
260 bool HostZoomMapImpl::UsesTemporaryZoomLevel(int render_process_id, | |
261 int render_view_id) const { | |
262 TemporaryZoomLevel zoom_level(render_process_id, render_view_id); | |
263 | |
264 base::AutoLock auto_lock(lock_); | |
265 TemporaryZoomLevels::const_iterator it = find( | |
266 temporary_zoom_levels_.begin(), temporary_zoom_levels_.end(), zoom_level); | |
267 return it != temporary_zoom_levels_.end(); | |
268 } | |
269 | |
270 void HostZoomMapImpl::SetUsesTemporaryZoomLevel( | |
271 int render_process_id, | |
272 int render_view_id, | |
273 bool uses_temporary_zoom_level) { | |
274 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
275 | |
276 TemporaryZoomLevel zoom_level( | |
277 render_process_id, render_view_id, default_zoom_level_); | |
278 | |
279 base::AutoLock auto_lock(lock_); | |
280 TemporaryZoomLevels::iterator it = find( | |
281 temporary_zoom_levels_.begin(), temporary_zoom_levels_.end(), zoom_level); | |
282 if (uses_temporary_zoom_level) { | |
283 if (it == temporary_zoom_levels_.end()) | |
284 temporary_zoom_levels_.push_back(zoom_level); | |
285 } else if (it != temporary_zoom_levels_.end()) { | |
286 temporary_zoom_levels_.erase(it); | |
287 } | |
288 } | |
289 | |
197 double HostZoomMapImpl::GetTemporaryZoomLevel(int render_process_id, | 290 double HostZoomMapImpl::GetTemporaryZoomLevel(int render_process_id, |
198 int render_view_id) const { | 291 int render_view_id) const { |
199 base::AutoLock auto_lock(lock_); | 292 base::AutoLock auto_lock(lock_); |
200 for (size_t i = 0; i < temporary_zoom_levels_.size(); ++i) { | 293 for (size_t i = 0; i < temporary_zoom_levels_.size(); ++i) { |
201 if (temporary_zoom_levels_[i].render_process_id == render_process_id && | 294 if (temporary_zoom_levels_[i].render_process_id == render_process_id && |
202 temporary_zoom_levels_[i].render_view_id == render_view_id) { | 295 temporary_zoom_levels_[i].render_view_id == render_view_id) { |
203 return temporary_zoom_levels_[i].zoom_level; | 296 return temporary_zoom_levels_[i].zoom_level; |
204 } | 297 } |
205 } | 298 } |
299 | |
206 return 0; | 300 return 0; |
207 } | 301 } |
208 | 302 |
209 void HostZoomMapImpl::SetTemporaryZoomLevel(int render_process_id, | 303 void HostZoomMapImpl::SetTemporaryZoomLevel(int render_process_id, |
210 int render_view_id, | 304 int render_view_id, |
211 double level) { | 305 double level) { |
212 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | 306 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
213 | 307 |
214 { | 308 { |
215 base::AutoLock auto_lock(lock_); | 309 base::AutoLock auto_lock(lock_); |
216 size_t i; | 310 size_t i; |
217 for (i = 0; i < temporary_zoom_levels_.size(); ++i) { | 311 for (i = 0; i < temporary_zoom_levels_.size(); ++i) { |
218 if (temporary_zoom_levels_[i].render_process_id == render_process_id && | 312 if (temporary_zoom_levels_[i].render_process_id == render_process_id && |
219 temporary_zoom_levels_[i].render_view_id == render_view_id) { | 313 temporary_zoom_levels_[i].render_view_id == render_view_id) { |
220 if (level) { | 314 if (level) { |
221 temporary_zoom_levels_[i].zoom_level = level; | 315 temporary_zoom_levels_[i].zoom_level = level; |
222 } else { | 316 } else { |
223 temporary_zoom_levels_.erase(temporary_zoom_levels_.begin() + i); | 317 temporary_zoom_levels_.erase(temporary_zoom_levels_.begin() + i); |
224 } | 318 } |
225 break; | 319 break; |
226 } | 320 } |
227 } | 321 } |
228 | 322 |
229 if (level && i == temporary_zoom_levels_.size()) { | 323 if (level && i == temporary_zoom_levels_.size()) { |
230 TemporaryZoomLevel temp; | 324 TemporaryZoomLevel temp(render_process_id, render_view_id, level); |
231 temp.render_process_id = render_process_id; | |
232 temp.render_view_id = render_view_id; | |
233 temp.zoom_level = level; | |
234 temporary_zoom_levels_.push_back(temp); | 325 temporary_zoom_levels_.push_back(temp); |
235 } | 326 } |
236 } | 327 } |
237 | 328 |
238 HostZoomMap::ZoomLevelChange change; | 329 HostZoomMap::ZoomLevelChange change; |
239 change.mode = HostZoomMap::ZOOM_CHANGED_TEMPORARY_ZOOM; | 330 change.mode = HostZoomMap::ZOOM_CHANGED_TEMPORARY_ZOOM; |
240 change.zoom_level = level; | 331 change.zoom_level = level; |
241 | 332 |
242 zoom_level_changed_callbacks_.Notify(change); | 333 zoom_level_changed_callbacks_.Notify(change); |
243 } | 334 } |
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262 break; | 353 break; |
263 } | 354 } |
264 default: | 355 default: |
265 NOTREACHED() << "Unexpected preference observed."; | 356 NOTREACHED() << "Unexpected preference observed."; |
266 } | 357 } |
267 } | 358 } |
268 | 359 |
269 HostZoomMapImpl::~HostZoomMapImpl() { | 360 HostZoomMapImpl::~HostZoomMapImpl() { |
270 } | 361 } |
271 | 362 |
363 HostZoomMapImpl::TemporaryZoomLevel::TemporaryZoomLevel(int process_id, | |
364 int view_id, | |
365 double level) | |
366 : render_process_id(process_id), | |
367 render_view_id(view_id), | |
368 zoom_level(level) { | |
369 } | |
370 | |
371 HostZoomMapImpl::TemporaryZoomLevel::TemporaryZoomLevel(int process_id, | |
372 int view_id) | |
373 : render_process_id(process_id), render_view_id(view_id), zoom_level(0.0) { | |
Peter Kasting
2014/05/29 18:16:08
Nit: I read the style guide as saying that these n
wjmaclean
2014/05/29 20:14:19
Done.
Good point ... this was auto-formatted, so
| |
374 } | |
375 | |
376 bool HostZoomMapImpl::TemporaryZoomLevel::operator==( | |
377 const TemporaryZoomLevel& other) const { | |
378 return other.render_process_id == render_process_id && | |
379 other.render_view_id == render_view_id; | |
380 } | |
381 | |
272 } // namespace content | 382 } // namespace content |
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