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// Copyright 2014 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_RESIZE_HANDLE_WINDOW_TARGETER_H_
#define ASH_WM_RESIZE_HANDLE_WINDOW_TARGETER_H_
#include "ash/wm/window_state_observer.h"
#include "ui/aura/window_observer.h"
#include "ui/aura/window_targeter.h"
#include "ui/gfx/geometry/insets.h"
namespace ash {
class ImmersiveFullscreenController;
// To allow easy resize, the resize handles should slightly overlap the content
// area of non-maximized and non-fullscreen windows. For immersive fullscreen
// windows, this targeter makes sure that touch-events towards the top of the
// screen are targeted to the window itself (instead of a child window that may
// otherwise have been targeted) when the top-of-window views are not revealed.
class ResizeHandleWindowTargeter : public wm::WindowStateObserver,
public aura::WindowObserver,
public aura::WindowTargeter {
public:
ResizeHandleWindowTargeter(aura::Window* window,
ImmersiveFullscreenController* immersive);
virtual ~ResizeHandleWindowTargeter();
private:
// wm::WindowStateObserver:
virtual void OnPostWindowStateTypeChange(
wm::WindowState* window_state,
wm::WindowStateType old_type) OVERRIDE;
// aura::WindowObserver:
virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
// aura::WindowTargeter:
virtual ui::EventTarget* FindTargetForLocatedEvent(
ui::EventTarget* root,
ui::LocatedEvent* event) OVERRIDE;
virtual bool SubtreeShouldBeExploredForEvent(
ui::EventTarget* target,
const ui::LocatedEvent& event) OVERRIDE;
// The targeter does not take ownership of |window_| or
// |immersive_controller_|.
aura::Window* window_;
gfx::Insets frame_border_inset_;
ImmersiveFullscreenController* immersive_controller_;
DISALLOW_COPY_AND_ASSIGN(ResizeHandleWindowTargeter);
};
} // namespace ash
#endif // ASH_WM_RESIZE_HANDLE_WINDOW_TARGETER_H_
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