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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 UI_MESSAGE_CENTER_VIEWS_DESKTOP_POPUP_ALIGNMENT_DELEGATE_H_
#define UI_MESSAGE_CENTER_VIEWS_DESKTOP_POPUP_ALIGNMENT_DELEGATE_H_
#include "base/macros.h"
#include "ui/gfx/display_observer.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/message_center/views/popup_alignment_delegate.h"
namespace gfx {
class Screen;
}
namespace message_center {
namespace test {
class MessagePopupCollectionTest;
}
// The PopupAlignmentDelegate for non-ash Windows/Linux desktop.
class MESSAGE_CENTER_EXPORT DesktopPopupAlignmentDelegate
: public PopupAlignmentDelegate,
public gfx::DisplayObserver {
public:
DesktopPopupAlignmentDelegate();
~DesktopPopupAlignmentDelegate() override;
void StartObserving(gfx::Screen* screen);
// Overridden from PopupAlignmentDelegate:
int GetToastOriginX(const gfx::Rect& toast_bounds) const override;
int GetBaseLine() const override;
int GetWorkAreaBottom() const override;
bool IsTopDown() const override;
bool IsFromLeft() const override;
void RecomputeAlignment(const gfx::Display& display) override;
private:
friend class test::MessagePopupCollectionTest;
enum PopupAlignment {
POPUP_ALIGNMENT_TOP = 1 << 0,
POPUP_ALIGNMENT_LEFT = 1 << 1,
POPUP_ALIGNMENT_BOTTOM = 1 << 2,
POPUP_ALIGNMENT_RIGHT = 1 << 3,
};
// Overridden from gfx::DisplayObserver:
void OnDisplayAdded(const gfx::Display& new_display) override;
void OnDisplayRemoved(const gfx::Display& old_display) override;
void OnDisplayMetricsChanged(const gfx::Display& display,
uint32_t metrics) override;
int32_t alignment_;
int64_t display_id_;
gfx::Screen* screen_;
gfx::Rect work_area_;
DISALLOW_COPY_AND_ASSIGN(DesktopPopupAlignmentDelegate);
};
} // namespace message_center
#endif // UI_MESSAGE_CENTER_VIEWS_DESKTOP_POPUP_ALIGNMENT_DELEGATE_H_
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