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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #include "chrome/browser/ui/zoom/zoom_event_manager.h" | |
6 | |
7 #include "base/bind.h" | |
8 #include "content/public/browser/browser_context.h" | |
9 | |
10 static const char* kBrowserZoomEventManager = "browser_zoom_event_manager"; | |
Dan Beam
2014/06/26 03:40:03
nit: namespace { ... }, also char* -> char[] for l
wjmaclean
2014/06/26 15:30:31
Done.
| |
11 | |
12 ZoomEventManager* ZoomEventManager::GetForBrowserContext( | |
13 content::BrowserContext* context) { | |
14 ZoomEventManager* manager = static_cast<ZoomEventManager*>( | |
15 context->GetUserData(kBrowserZoomEventManager)); | |
16 if (!manager) { | |
Dan Beam
2014/06/26 03:40:03
nit:
if (!context->GetUserData(kBrowserZoomEventM
wjmaclean
2014/06/26 15:30:31
Done.
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17 manager = new ZoomEventManager(); | |
18 context->SetUserData(kBrowserZoomEventManager, manager); | |
19 } | |
20 return manager; | |
21 } | |
22 | |
23 ZoomEventManager::ZoomEventManager() { | |
24 } | |
25 | |
26 ZoomEventManager::~ZoomEventManager() {} | |
27 | |
28 void ZoomEventManager::OnZoomLevelChanged( | |
29 const content::HostZoomMap::ZoomLevelChange& change) { | |
30 zoom_level_changed_callbacks_.Notify(change); | |
31 } | |
32 | |
33 scoped_ptr<content::HostZoomMap::Subscription> | |
34 ZoomEventManager::AddZoomLevelChangedCallback( | |
35 const content::HostZoomMap::ZoomLevelChangedCallback& callback) { | |
36 return zoom_level_changed_callbacks_.Add(callback); | |
37 } | |
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