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-rw-r--r--chromium/ash/wm/mru_window_tracker.h89
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diff --git a/chromium/ash/wm/mru_window_tracker.h b/chromium/ash/wm/mru_window_tracker.h
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--- a/chromium/ash/wm/mru_window_tracker.h
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-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef ASH_WM_MRU_WINDOW_TRACKER_H_
-#define ASH_WM_MRU_WINDOW_TRACKER_H_
-
-#include <list>
-#include <vector>
-
-#include "ash/ash_export.h"
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "ui/aura/client/activation_change_observer.h"
-#include "ui/aura/window_observer.h"
-
-namespace aura {
-class RootWindow;
-class Window;
-namespace client {
-class ActivationClient;
-}
-}
-
-namespace ash {
-
-// List of containers which contain windows that can be switched to.
-ASH_EXPORT extern const int kSwitchableWindowContainerIds[];
-
-// The number of elements in kSwitchableWindowContainerIds.
-ASH_EXPORT extern const size_t kSwitchableWindowContainerIdsLength;
-
-// Maintains a most recently used list of windows. This is used for window
-// cycling using Alt+Tab and overview mode.
-class ASH_EXPORT MruWindowTracker
- : public aura::client::ActivationChangeObserver,
- public aura::WindowObserver {
- public:
- typedef std::vector<aura::Window*> WindowList;
-
- explicit MruWindowTracker(
- aura::client::ActivationClient* activation_client);
- virtual ~MruWindowTracker();
-
- // Returns the set of windows which can be cycled through. This method creates
- // the vector based on the current set of windows across all valid root
- // windows. As a result it is not necessarily the same as the set of
- // windows being iterated over.
- // If |top_most_at_end| the window list will return in ascending (lowest
- // window in stacking order first) order instead of the default descending
- // (top most window first) order.
- static WindowList BuildWindowList(bool top_most_at_end);
-
- // Returns the set of windows which can be cycled through using the tracked
- // list of most recently used windows.
- WindowList BuildMruWindowList();
-
- // Starts or stops ignoring window activations. If no longer ignoring
- // activations the currently active window is moved to the front of the
- // MRU window list. Used by WindowCycleList to avoid adding all cycled
- // windows to the front of the MRU window list.
- void SetIgnoreActivations(bool ignore);
-
- private:
- // Updates the mru_windows_ list to insert/move |active_window| at/to the
- // front.
- void SetActiveWindow(aura::Window* active_window);
-
- // Overridden from aura::client::ActivationChangeObserver:
- virtual void OnWindowActivated(aura::Window* gained_active,
- aura::Window* lost_active) OVERRIDE;
-
- // Overridden from WindowObserver:
- virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
-
- // List of windows that have been activated in containers that we cycle
- // through, sorted by most recently used.
- std::list<aura::Window*> mru_windows_;
-
- aura::client::ActivationClient* activation_client_;
-
- bool ignore_window_activations_;
-
- DISALLOW_COPY_AND_ASSIGN(MruWindowTracker);
-};
-
-} // namespace ash
-
-#endif // ASH_WM_MRU_WINDOW_TRACKER_H_