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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_EffectsInfo_h
#define mozilla_dom_EffectsInfo_h
#include "nsRect.h"
namespace mozilla {
namespace dom {
/**
* An EffectsInfo contains information for a remote browser about the graphical
* effects that are being applied to it by ancestor browsers in different
* processes.
*/
class EffectsInfo {
public:
EffectsInfo() { *this = EffectsInfo::FullyHidden(); }
static EffectsInfo VisibleWithinRect(const nsRect& aVisibleRect,
float aScaleX, float aScaleY) {
return EffectsInfo{aVisibleRect, aScaleX, aScaleY};
}
static EffectsInfo FullyHidden() { return EffectsInfo{nsRect(), 1.0f, 1.0f}; }
bool operator==(const EffectsInfo& aOther) {
return mVisibleRect == aOther.mVisibleRect && mScaleX == aOther.mScaleX &&
mScaleY == aOther.mScaleY;
}
bool operator!=(const EffectsInfo& aOther) { return !(*this == aOther); }
bool IsVisible() const { return !mVisibleRect.IsEmpty(); }
// The visible rect of this browser relative to the root frame. If this is
// empty then the browser can be considered invisible.
nsRect mVisibleRect;
// The desired scale factors to apply to rasterized content to match
// transforms applied in ancestor browsers.
float mScaleX;
float mScaleY;
// If you add new fields here, you must also update operator==
private:
EffectsInfo(const nsRect& aVisibleRect, float aScaleX, float aScaleY)
: mVisibleRect(aVisibleRect), mScaleX(aScaleX), mScaleY(aScaleY) {}
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_EffectsInfo_h
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