зеркало из https://github.com/mozilla/gecko-dev.git
56 строки
1.9 KiB
C++
56 строки
1.9 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 mozilla_dom_EffectsInfo_h
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#define mozilla_dom_EffectsInfo_h
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#include "nsRect.h"
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namespace mozilla {
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namespace dom {
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/**
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* An EffectsInfo contains information for a remote browser about the graphical
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* effects that are being applied to it by ancestor browsers in different
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* processes.
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*/
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class EffectsInfo {
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public:
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EffectsInfo() { *this = EffectsInfo::FullyHidden(); }
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static EffectsInfo VisibleWithinRect(const nsRect& aVisibleRect,
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float aScaleX, float aScaleY) {
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return EffectsInfo{aVisibleRect, aScaleX, aScaleY};
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}
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static EffectsInfo FullyHidden() { return EffectsInfo{nsRect(), 1.0f, 1.0f}; }
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bool operator==(const EffectsInfo& aOther) {
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return mVisibleRect == aOther.mVisibleRect && mScaleX == aOther.mScaleX &&
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mScaleY == aOther.mScaleY;
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}
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bool operator!=(const EffectsInfo& aOther) { return !(*this == aOther); }
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bool IsVisible() const { return !mVisibleRect.IsEmpty(); }
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// The visible rect of this browser relative to the root frame. If this is
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// empty then the browser can be considered invisible.
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nsRect mVisibleRect;
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// The desired scale factors to apply to rasterized content to match
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// transforms applied in ancestor browsers.
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float mScaleX;
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float mScaleY;
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// If you add new fields here, you must also update operator==
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private:
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EffectsInfo(const nsRect& aVisibleRect, float aScaleX, float aScaleY)
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: mVisibleRect(aVisibleRect), mScaleX(aScaleX), mScaleY(aScaleY) {}
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_EffectsInfo_h
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