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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(*web_contents); | |
46 } | |
47 | |
48 void HostZoomMap::SetZoomLevel(const WebContents* web_contents, double level) { | |
49 HostZoomMapImpl* host_zoom_map = static_cast<HostZoomMapImpl*>( | |
50 HostZoomMap::GetForBrowserContext(web_contents->GetBrowserContext())); | |
51 host_zoom_map->SetZoomLevelForWebContents(*web_contents, level); | |
52 } | |
53 | |
37 HostZoomMapImpl::HostZoomMapImpl() | 54 HostZoomMapImpl::HostZoomMapImpl() |
38 : default_zoom_level_(0.0) { | 55 : default_zoom_level_(0.0) { |
39 registrar_.Add( | 56 registrar_.Add( |
40 this, NOTIFICATION_RENDER_VIEW_HOST_WILL_CLOSE_RENDER_VIEW, | 57 this, NOTIFICATION_RENDER_VIEW_HOST_WILL_CLOSE_RENDER_VIEW, |
41 NotificationService::AllSources()); | 58 NotificationService::AllSources()); |
42 } | 59 } |
43 | 60 |
44 void HostZoomMapImpl::CopyFrom(HostZoomMap* copy_interface) { | 61 void HostZoomMapImpl::CopyFrom(HostZoomMap* copy_interface) { |
45 // This can only be called on the UI thread to avoid deadlocks, otherwise | 62 // This can only be called on the UI thread to avoid deadlocks, otherwise |
46 // UI: a.CopyFrom(b); | 63 // UI: a.CopyFrom(b); |
(...skipping 140 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
187 void HostZoomMapImpl::SetDefaultZoomLevel(double level) { | 204 void HostZoomMapImpl::SetDefaultZoomLevel(double level) { |
188 default_zoom_level_ = level; | 205 default_zoom_level_ = level; |
189 } | 206 } |
190 | 207 |
191 scoped_ptr<HostZoomMap::Subscription> | 208 scoped_ptr<HostZoomMap::Subscription> |
192 HostZoomMapImpl::AddZoomLevelChangedCallback( | 209 HostZoomMapImpl::AddZoomLevelChangedCallback( |
193 const ZoomLevelChangedCallback& callback) { | 210 const ZoomLevelChangedCallback& callback) { |
194 return zoom_level_changed_callbacks_.Add(callback); | 211 return zoom_level_changed_callbacks_.Add(callback); |
195 } | 212 } |
196 | 213 |
214 double HostZoomMapImpl::GetZoomLevelForWebContents( | |
215 const WebContents& web_contents) const { | |
216 const WebContentsImpl& web_contents_impl = | |
217 static_cast<const WebContentsImpl&>(web_contents); | |
Peter Kasting
2014/05/28 22:49:58
These unconditional downcasts scare me.
The API s
wjmaclean
2014/05/29 14:49:45
I've moved the downcasts to the static accessor fu
Peter Kasting
2014/05/29 18:16:08
What do we really gain by making those callsites n
jam
2014/05/30 16:22:20
casting interfaces to objects that are only implem
| |
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 } else { | |
Peter Kasting
2014/05/28 22:49:58
Nit: No else after return
wjmaclean
2014/05/29 14:49:45
Done.
| |
224 GURL url; | |
225 NavigationEntry* entry = | |
226 web_contents_impl.GetController().GetLastCommittedEntry(); | |
227 // Since zoom map is updated using rewritten URL, use rewritten URL to get | |
228 // the zoom level. | |
Peter Kasting
2014/05/28 22:49:58
(1) I don't know what this comment means. What's
wjmaclean
2014/05/29 14:49:45
Done.
In all honesty, I don't even recall writing
| |
229 url = entry ? entry->GetURL() : GURL::EmptyGURL(); | |
Peter Kasting
2014/05/28 22:49:58
This use of EmptyGURL() is incorrect, and |url| is
wjmaclean
2014/05/29 14:49:45
Done.
| |
230 return GetZoomLevelForHostAndScheme(url.scheme(), | |
231 net::GetHostOrSpecFromURL(url)); | |
232 } | |
233 } | |
234 | |
235 void HostZoomMapImpl::SetZoomLevelForWebContents( | |
236 const WebContents& web_contents, | |
237 double level) { | |
238 const WebContentsImpl& web_contents_impl = | |
239 static_cast<const WebContentsImpl&>(web_contents); | |
240 int render_process_id = web_contents_impl.GetRenderProcessHost()->GetID(); | |
241 int render_view_id = web_contents_impl.GetRenderViewHost()->GetRoutingID(); | |
242 if (UsesTemporaryZoomLevel(render_process_id, render_view_id)) { | |
243 | |
244 SetTemporaryZoomLevel(render_process_id, render_view_id, level); | |
245 } else { | |
246 SetZoomLevelForHost( | |
247 net::GetHostOrSpecFromURL(web_contents_impl.GetLastCommittedURL()), | |
248 level); | |
249 } | |
250 } | |
251 | |
252 void HostZoomMapImpl::SetZoomLevelForView(int render_process_id, | |
253 int render_view_id, | |
254 double level, | |
255 const std::string& host) { | |
256 if (UsesTemporaryZoomLevel(render_process_id, render_view_id)) | |
257 SetTemporaryZoomLevel(render_process_id, render_view_id, level); | |
258 else | |
259 SetZoomLevelForHost(host, level); | |
260 } | |
261 | |
262 bool HostZoomMapImpl::UsesTemporaryZoomLevel(int render_process_id, | |
263 int render_view_id) const { | |
264 base::AutoLock auto_lock(lock_); | |
265 TemporaryZoomLevel zoom_level(render_process_id, render_view_id); | |
Peter Kasting
2014/05/28 22:49:58
Tiny nit: You can move this line above the lock (j
wjmaclean
2014/05/29 14:49:45
Done.
| |
266 TemporaryZoomLevelList::const_iterator it = find( | |
267 temporary_zoom_levels_.begin(), temporary_zoom_levels_.end(), zoom_level); | |
268 return it != temporary_zoom_levels_.end(); | |
269 } | |
270 | |
271 void HostZoomMapImpl::SetUsesTemporaryZoomLevel( | |
272 int render_process_id, | |
273 int render_view_id, | |
274 bool uses_temporary_zoom_settings) { | |
275 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
276 | |
277 base::AutoLock auto_lock(lock_); | |
278 TemporaryZoomLevel zoom_level( | |
279 render_process_id, render_view_id, default_zoom_level_); | |
Peter Kasting
2014/05/28 22:49:58
Tiny nit: Again, this can go above the lock
wjmaclean
2014/05/29 14:49:45
Done.
| |
280 TemporaryZoomLevelList::iterator it = find( | |
281 temporary_zoom_levels_.begin(), temporary_zoom_levels_.end(), zoom_level); | |
282 if (uses_temporary_zoom_settings) { | |
283 if (it == temporary_zoom_levels_.end()) | |
284 temporary_zoom_levels_.push_back(zoom_level); | |
285 } else { | |
286 if (it != temporary_zoom_levels_.end()) | |
Peter Kasting
2014/05/28 22:49:58
Nit: Can be combined with the else
wjmaclean
2014/05/29 14:49:45
Done.
| |
287 temporary_zoom_levels_.erase(it); | |
288 } | |
289 } | |
290 | |
197 double HostZoomMapImpl::GetTemporaryZoomLevel(int render_process_id, | 291 double HostZoomMapImpl::GetTemporaryZoomLevel(int render_process_id, |
198 int render_view_id) const { | 292 int render_view_id) const { |
199 base::AutoLock auto_lock(lock_); | 293 base::AutoLock auto_lock(lock_); |
200 for (size_t i = 0; i < temporary_zoom_levels_.size(); ++i) { | 294 for (size_t i = 0; i < temporary_zoom_levels_.size(); ++i) { |
201 if (temporary_zoom_levels_[i].render_process_id == render_process_id && | 295 if (temporary_zoom_levels_[i].render_process_id == render_process_id && |
202 temporary_zoom_levels_[i].render_view_id == render_view_id) { | 296 temporary_zoom_levels_[i].render_view_id == render_view_id) { |
203 return temporary_zoom_levels_[i].zoom_level; | 297 return temporary_zoom_levels_[i].zoom_level; |
204 } | 298 } |
205 } | 299 } |
300 | |
206 return 0; | 301 return 0; |
207 } | 302 } |
208 | 303 |
209 void HostZoomMapImpl::SetTemporaryZoomLevel(int render_process_id, | 304 void HostZoomMapImpl::SetTemporaryZoomLevel(int render_process_id, |
210 int render_view_id, | 305 int render_view_id, |
211 double level) { | 306 double level) { |
212 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | 307 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
213 | 308 |
214 { | 309 { |
215 base::AutoLock auto_lock(lock_); | 310 base::AutoLock auto_lock(lock_); |
216 size_t i; | 311 size_t i; |
217 for (i = 0; i < temporary_zoom_levels_.size(); ++i) { | 312 for (i = 0; i < temporary_zoom_levels_.size(); ++i) { |
218 if (temporary_zoom_levels_[i].render_process_id == render_process_id && | 313 if (temporary_zoom_levels_[i].render_process_id == render_process_id && |
219 temporary_zoom_levels_[i].render_view_id == render_view_id) { | 314 temporary_zoom_levels_[i].render_view_id == render_view_id) { |
220 if (level) { | 315 if (level) { |
221 temporary_zoom_levels_[i].zoom_level = level; | 316 temporary_zoom_levels_[i].zoom_level = level; |
222 } else { | 317 } else { |
223 temporary_zoom_levels_.erase(temporary_zoom_levels_.begin() + i); | 318 temporary_zoom_levels_.erase(temporary_zoom_levels_.begin() + i); |
224 } | 319 } |
225 break; | 320 break; |
226 } | 321 } |
227 } | 322 } |
228 | 323 |
229 if (level && i == temporary_zoom_levels_.size()) { | 324 if (level && i == temporary_zoom_levels_.size()) { |
230 TemporaryZoomLevel temp; | 325 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); | 326 temporary_zoom_levels_.push_back(temp); |
235 } | 327 } |
236 } | 328 } |
237 | 329 |
238 HostZoomMap::ZoomLevelChange change; | 330 HostZoomMap::ZoomLevelChange change; |
239 change.mode = HostZoomMap::ZOOM_CHANGED_TEMPORARY_ZOOM; | 331 change.mode = HostZoomMap::ZOOM_CHANGED_TEMPORARY_ZOOM; |
240 change.zoom_level = level; | 332 change.zoom_level = level; |
241 | 333 |
242 zoom_level_changed_callbacks_.Notify(change); | 334 zoom_level_changed_callbacks_.Notify(change); |
243 } | 335 } |
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263 } | 355 } |
264 default: | 356 default: |
265 NOTREACHED() << "Unexpected preference observed."; | 357 NOTREACHED() << "Unexpected preference observed."; |
266 } | 358 } |
267 } | 359 } |
268 | 360 |
269 HostZoomMapImpl::~HostZoomMapImpl() { | 361 HostZoomMapImpl::~HostZoomMapImpl() { |
270 } | 362 } |
271 | 363 |
272 } // namespace content | 364 } // namespace content |
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