electron/atom/browser/window_list.h

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// Copyright (c) 2013 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#ifndef ATOM_BROWSER_WINDOW_LIST_H_
#define ATOM_BROWSER_WINDOW_LIST_H_
#include <vector>
#include "base/basictypes.h"
#include "base/lazy_instance.h"
#include "base/observer_list.h"
namespace atom {
class NativeWindow;
class WindowListObserver;
class WindowList {
public:
typedef std::vector<NativeWindow*> WindowVector;
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typedef WindowVector::iterator iterator;
typedef WindowVector::const_iterator const_iterator;
// Windows are added to the list before they have constructed windows,
// so the |window()| member function may return NULL.
const_iterator begin() const { return windows_.begin(); }
const_iterator end() const { return windows_.end(); }
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iterator begin() { return windows_.begin(); }
iterator end() { return windows_.end(); }
bool empty() const { return windows_.empty(); }
size_t size() const { return windows_.size(); }
NativeWindow* get(size_t index) const { return windows_[index]; }
static WindowList* GetInstance();
// Adds or removes |window| from the list it is associated with.
static void AddWindow(NativeWindow* window);
static void RemoveWindow(NativeWindow* window);
// Called by window when a close is cancelled by beforeunload handler.
static void WindowCloseCancelled(NativeWindow* window);
// Adds and removes |observer| from the observer list.
static void AddObserver(WindowListObserver* observer);
static void RemoveObserver(WindowListObserver* observer);
// Closes all windows.
static void CloseAllWindows();
private:
WindowList();
~WindowList();
// A vector of the windows in this list, in the order they were added.
WindowVector windows_;
// A list of observers which will be notified of every window addition and
// removal across all WindowLists.
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static base::LazyInstance<base::ObserverList<WindowListObserver>>::Leaky
observers_;
static WindowList* instance_;
DISALLOW_COPY_AND_ASSIGN(WindowList);
};
} // namespace atom
#endif // ATOM_BROWSER_WINDOW_LIST_H_