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/*
* Copyright (C) 2007 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_SCREEN_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_SCREEN_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/dom/events/event_target.h"
#include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/supplementable.h"
#include "third_party/blink/renderer/platform/wtf/text/atomic_string.h"
#include "ui/gfx/geometry/rect.h"
namespace display {
struct ScreenInfo;
}
namespace blink {
class LocalDOMWindow;
class CORE_EXPORT Screen : public EventTarget,
public ExecutionContextClient,
public Supplementable<Screen> {
DEFINE_WRAPPERTYPEINFO();
public:
Screen(LocalDOMWindow*, int64_t display_id);
static bool AreWebExposedScreenPropertiesEqual(
const display::ScreenInfo& prev,
const display::ScreenInfo& current);
int height() const;
int width() const;
unsigned colorDepth() const;
unsigned pixelDepth() const;
int availLeft() const;
int availTop() const;
int availHeight() const;
int availWidth() const;
void Trace(Visitor*) const override;
// EventTarget:
const WTF::AtomicString& InterfaceName() const override;
ExecutionContext* GetExecutionContext() const override;
// True if information about the device's screen size should be reduced in
// this context.
bool ShouldReduceScreenSize() const;
// Whether the device’s visual output extends over multiple screens.
// https://w3c.github.io/window-management/
bool isExtended() const;
// Fired when the window’s screen or that screen's attributes change.
// https://w3c.github.io/window-management/
DEFINE_ATTRIBUTE_EVENT_LISTENER(change, kChange)
// Not web-exposed; for internal usage only.
static constexpr int64_t kInvalidDisplayId = -1;
int64_t DisplayId() const { return display_id_; }
void UpdateDisplayId(int64_t display_id) { display_id_ = display_id; }
protected:
// Helpers to access screen information.
gfx::Rect GetRect(bool available) const;
const display::ScreenInfo& GetScreenInfo() const;
// The internal id of the underlying display, to support multi-screen devices.
int64_t display_id_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_SCREEN_H_
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