1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef mozilla_dom_EffectsInfo_h 8 #define mozilla_dom_EffectsInfo_h 9 10 #include "nsRect.h" 11 12 namespace mozilla { 13 namespace dom { 14 15 /** 16 * An EffectsInfo contains information for a remote browser about the graphical 17 * effects that are being applied to it by ancestor browsers in different 18 * processes. 19 */ 20 class EffectsInfo { 21 public: EffectsInfo()22 EffectsInfo() { *this = EffectsInfo::FullyHidden(); } 23 VisibleWithinRect(const nsRect & aVisibleRect,float aScaleX,float aScaleY)24 static EffectsInfo VisibleWithinRect(const nsRect& aVisibleRect, 25 float aScaleX, float aScaleY) { 26 return EffectsInfo{aVisibleRect, aScaleX, aScaleY}; 27 } FullyHidden()28 static EffectsInfo FullyHidden() { return EffectsInfo{nsRect(), 1.0f, 1.0f}; } 29 30 bool operator==(const EffectsInfo& aOther) { 31 return mVisibleRect == aOther.mVisibleRect && mScaleX == aOther.mScaleX && 32 mScaleY == aOther.mScaleY; 33 } 34 bool operator!=(const EffectsInfo& aOther) { return !(*this == aOther); } 35 IsVisible()36 bool IsVisible() const { return !mVisibleRect.IsEmpty(); } 37 38 // The visible rect of this browser relative to the root frame. If this is 39 // empty then the browser can be considered invisible. 40 nsRect mVisibleRect; 41 // The desired scale factors to apply to rasterized content to match 42 // transforms applied in ancestor browsers. 43 float mScaleX; 44 float mScaleY; 45 // If you add new fields here, you must also update operator== 46 47 private: EffectsInfo(const nsRect & aVisibleRect,float aScaleX,float aScaleY)48 EffectsInfo(const nsRect& aVisibleRect, float aScaleX, float aScaleY) 49 : mVisibleRect(aVisibleRect), mScaleX(aScaleX), mScaleY(aScaleY) {} 50 }; 51 52 } // namespace dom 53 } // namespace mozilla 54 55 #endif // mozilla_dom_EffectsInfo_h 56