зеркало из https://github.com/mozilla/gecko-dev.git
145 строки
3.4 KiB
C++
145 строки
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsScreen_h___
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#define nsScreen_h___
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/ScreenOrientation.h"
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#include "mozilla/DOMEventTargetHelper.h"
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#include "mozilla/ErrorResult.h"
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#include "nsCOMPtr.h"
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#include "nsRect.h"
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class nsDeviceContext;
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// Script "screen" object
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class nsScreen : public mozilla::DOMEventTargetHelper
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{
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typedef mozilla::ErrorResult ErrorResult;
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public:
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static already_AddRefed<nsScreen> Create(nsPIDOMWindowInner* aWindow);
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsScreen, mozilla::DOMEventTargetHelper)
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nsPIDOMWindowInner* GetParentObject() const
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{
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return GetOwner();
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}
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nsPIDOMWindowOuter* GetOuter() const;
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int32_t GetTop(ErrorResult& aRv)
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{
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nsRect rect;
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aRv = GetRect(rect);
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return rect.y;
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}
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int32_t GetLeft(ErrorResult& aRv)
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{
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nsRect rect;
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aRv = GetRect(rect);
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return rect.x;
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}
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int32_t GetWidth(ErrorResult& aRv)
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{
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nsRect rect;
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if (IsDeviceSizePageSize()) {
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if (nsCOMPtr<nsPIDOMWindowInner> owner = GetOwner()) {
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int32_t innerWidth = 0;
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aRv = owner->GetInnerWidth(&innerWidth);
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return innerWidth;
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}
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}
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aRv = GetRect(rect);
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return rect.Width();
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}
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int32_t GetHeight(ErrorResult& aRv)
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{
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nsRect rect;
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if (IsDeviceSizePageSize()) {
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if (nsCOMPtr<nsPIDOMWindowInner> owner = GetOwner()) {
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int32_t innerHeight = 0;
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aRv = owner->GetInnerHeight(&innerHeight);
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return innerHeight;
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}
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}
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aRv = GetRect(rect);
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return rect.Height();
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}
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int32_t GetPixelDepth(ErrorResult& aRv);
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int32_t GetColorDepth(ErrorResult& aRv)
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{
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return GetPixelDepth(aRv);
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}
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int32_t GetAvailTop(ErrorResult& aRv)
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{
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nsRect rect;
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aRv = GetAvailRect(rect);
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return rect.y;
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}
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int32_t GetAvailLeft(ErrorResult& aRv)
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{
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nsRect rect;
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aRv = GetAvailRect(rect);
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return rect.x;
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}
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int32_t GetAvailWidth(ErrorResult& aRv)
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{
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nsRect rect;
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aRv = GetAvailRect(rect);
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return rect.Width();
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}
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int32_t GetAvailHeight(ErrorResult& aRv)
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{
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nsRect rect;
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aRv = GetAvailRect(rect);
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return rect.Height();
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}
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// Deprecated
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void GetMozOrientation(nsString& aOrientation,
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mozilla::dom::CallerType aCallerType) const;
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IMPL_EVENT_HANDLER(mozorientationchange)
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bool MozLockOrientation(const nsAString& aOrientation, ErrorResult& aRv);
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bool MozLockOrientation(const mozilla::dom::Sequence<nsString>& aOrientations, ErrorResult& aRv);
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void MozUnlockOrientation();
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virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
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mozilla::dom::ScreenOrientation* Orientation() const;
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protected:
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nsDeviceContext* GetDeviceContext();
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nsresult GetRect(nsRect& aRect);
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nsresult GetAvailRect(nsRect& aRect);
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nsresult GetWindowInnerRect(nsRect& aRect);
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private:
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explicit nsScreen(nsPIDOMWindowInner* aWindow);
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virtual ~nsScreen();
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bool IsDeviceSizePageSize();
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bool ShouldResistFingerprinting() const;
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RefPtr<mozilla::dom::ScreenOrientation> mScreenOrientation;
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};
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#endif /* nsScreen_h___ */
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