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/point.h" 9 10PanelMouseWatcher::PanelMouseWatcher() { 11} 12 13PanelMouseWatcher::~PanelMouseWatcher() { 14} 15 16void PanelMouseWatcher::AddObserver(PanelMouseWatcherObserver* observer) { 17 bool already_started = observers_.might_have_observers(); 18 observers_.AddObserver(observer); 19 if (!already_started) 20 Start(); 21} 22 23void PanelMouseWatcher::RemoveObserver(PanelMouseWatcherObserver* observer) { 24 DCHECK(observers_.HasObserver(observer)); 25 observers_.RemoveObserver(observer); 26 if (!observers_.might_have_observers()) 27 Stop(); 28} 29 30void PanelMouseWatcher::NotifyMouseMovement(const gfx::Point& mouse_position) { 31 FOR_EACH_OBSERVER(PanelMouseWatcherObserver, observers_, 32 OnMouseMove(mouse_position)); 33} 34