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// Copyright (c) 2012 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_SHELF_SHELF_WIDGET_H_
#define ASH_SHELF_SHELF_WIDGET_H_
#include "ash/ash_export.h"
#include "ash/shelf/background_animator.h"
#include "ash/shelf/shelf_types.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_observer.h"
namespace aura {
class Window;
}
namespace ash {
class Launcher;
namespace internal {
class FocusCycler;
class StatusAreaWidget;
class ShelfLayoutManager;
class WorkspaceController;
}
class ASH_EXPORT ShelfWidget : public views::Widget,
public views::WidgetObserver {
public:
ShelfWidget(
aura::Window* shelf_container,
aura::Window* status_container,
internal::WorkspaceController* workspace_controller);
virtual ~ShelfWidget();
// Returns if shelf alignment option is enabled, and the user is able
// to adjust the alignment (guest and supervised mode users cannot for
// example).
static bool ShelfAlignmentAllowed();
void SetAlignment(ShelfAlignment alignmnet);
ShelfAlignment GetAlignment() const;
// Sets the shelf's background type.
void SetPaintsBackground(ShelfBackgroundType background_type,
BackgroundAnimatorChangeType change_type);
ShelfBackgroundType GetBackgroundType() const;
// Causes shelf items to be slightly dimmed (e.g. when a window is maximized).
void SetDimsShelf(bool dimming);
bool GetDimsShelf() const;
internal::ShelfLayoutManager* shelf_layout_manager() {
return shelf_layout_manager_;
}
Launcher* launcher() const { return launcher_.get(); }
internal::StatusAreaWidget* status_area_widget() const {
return status_area_widget_;
}
void CreateLauncher();
// Set visibility of the launcher component of the shelf.
void SetLauncherVisibility(bool visible);
bool IsLauncherVisible() const;
// Sets the focus cycler. Also adds the launcher to the cycle.
void SetFocusCycler(internal::FocusCycler* focus_cycler);
internal::FocusCycler* GetFocusCycler();
// Called by the activation delegate, before the launcher is activated
// when no other windows are visible.
void WillActivateAsFallback() { activating_as_fallback_ = true; }
aura::Window* window_container() { return window_container_; }
// TODO(harrym): Remove when Status Area Widget is a child view.
void ShutdownStatusAreaWidget();
// Force the shelf to be presented in an undimmed state.
void ForceUndimming(bool force);
// Overridden from views::WidgetObserver:
virtual void OnWidgetActivationChanged(
views::Widget* widget, bool active) OVERRIDE;
// A function to test the current alpha used by the dimming bar. If there is
// no dimmer active, the function will return -1.
int GetDimmingAlphaForTest();
// A function to test the bounds of the dimming bar. Returns gfx::Rect() if
// the dimmer is inactive.
gfx::Rect GetDimmerBoundsForTest();
// Disable dimming animations for running tests.
void DisableDimmingAnimationsForTest();
private:
class DelegateView;
internal::ShelfLayoutManager* shelf_layout_manager_;
scoped_ptr<Launcher> launcher_;
internal::StatusAreaWidget* status_area_widget_;
// delegate_view_ is attached to window_container_ and is cleaned up
// during CloseChildWindows of the associated RootWindowController.
DelegateView* delegate_view_;
internal::BackgroundAnimator background_animator_;
bool activating_as_fallback_;
aura::Window* window_container_;
};
} // namespace ash
#endif // ASH_SHELF_SHELF_WIDGET_H_
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