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Diffstat (limited to 'chromium/ash/wm/window_selector_controller.h')
-rw-r--r-- | chromium/ash/wm/window_selector_controller.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/chromium/ash/wm/window_selector_controller.h b/chromium/ash/wm/window_selector_controller.h new file mode 100644 index 00000000000..385c30ef245 --- /dev/null +++ b/chromium/ash/wm/window_selector_controller.h @@ -0,0 +1,72 @@ +// 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_WINDOW_SELECTOR_CONTROLLER_H_ +#define ASH_WM_WINDOW_SELECTOR_CONTROLLER_H_ + +#include <list> +#include <vector> + +#include "ash/ash_export.h" +#include "ash/wm/window_selector.h" +#include "ash/wm/window_selector_delegate.h" +#include "base/basictypes.h" +#include "base/memory/scoped_ptr.h" +#include "ui/aura/window_observer.h" + +namespace aura { +class Window; +} + +namespace ui { +class EventHandler; +} + +namespace ash { + +class WindowSelector; + +// Manages a window selector which displays an overview of all windows and +// allows selecting a window to activate it. +class ASH_EXPORT WindowSelectorController + : public WindowSelectorDelegate { + public: + WindowSelectorController(); + virtual ~WindowSelectorController(); + + // Returns true if selecting windows in an overview is enabled. This is false + // at certain times, such as when the lock screen is visible. + static bool CanSelect(); + + // Enters overview mode. This is essentially the window cycling mode however + // not released on releasing the alt key and allows selecting with the mouse + // or touch rather than keypresses. + void ToggleOverview(); + + // Cycles between windows in the given |direction|. It is assumed that the + // alt key is held down and a key filter is installed to watch for alt being + // released. + void HandleCycleWindow(WindowSelector::Direction direction); + + // Informs the controller that the Alt key has been released and it can + // terminate the existing multi-step cycle. + void AltKeyReleased(); + + // Returns true if window selection mode is active. + bool IsSelecting(); + + // WindowSelectorDelegate: + virtual void OnWindowSelected(aura::Window* window) OVERRIDE; + virtual void OnSelectionCanceled() OVERRIDE; + + private: + scoped_ptr<WindowSelector> window_selector_; + scoped_ptr<ui::EventHandler> event_handler_; + + DISALLOW_COPY_AND_ASSIGN(WindowSelectorController); +}; + +} // namespace ash + +#endif // ASH_WM_WINDOW_SELECTOR_CONTROLLER_H_ |