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1 // Copyright (c) 2011 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/panels/panel_mouse_watcher.h" | |
6 | |
7 #include "chrome/browser/ui/panels/panel_mouse_watcher_observer.h" | |
8 #include "ui/gfx/geometry/point.h" | |
9 | |
10 PanelMouseWatcher::PanelMouseWatcher() { | |
11 } | |
12 | |
13 PanelMouseWatcher::~PanelMouseWatcher() { | |
14 } | |
15 | |
16 void PanelMouseWatcher::AddObserver(PanelMouseWatcherObserver* observer) { | |
17 bool already_started = observers_.might_have_observers(); | |
18 observers_.AddObserver(observer); | |
19 if (!already_started) | |
20 Start(); | |
21 } | |
22 | |
23 void PanelMouseWatcher::RemoveObserver(PanelMouseWatcherObserver* observer) { | |
24 DCHECK(observers_.HasObserver(observer)); | |
25 observers_.RemoveObserver(observer); | |
26 if (!observers_.might_have_observers()) | |
27 Stop(); | |
28 } | |
29 | |
30 void PanelMouseWatcher::NotifyMouseMovement(const gfx::Point& mouse_position) { | |
31 FOR_EACH_OBSERVER(PanelMouseWatcherObserver, observers_, | |
32 OnMouseMove(mouse_position)); | |
33 } | |
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