nsAtomicContainerFrame.h (1701B)
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 /* base class for rendering objects that need child lists but behave like leaf 8 */ 9 10 #ifndef nsAtomicContainerFrame_h___ 11 #define nsAtomicContainerFrame_h___ 12 13 #include "nsContainerFrame.h" 14 15 /** 16 * This class is for frames which need child lists but act like a leaf 17 * frame. In general, all frames of elements laid out according to the 18 * CSS box model would need child list for ::backdrop in case they are 19 * in fullscreen, while some of them still want leaf frame behavior. 20 */ 21 class nsAtomicContainerFrame : public nsContainerFrame { 22 public: 23 NS_DECL_ABSTRACT_FRAME(nsAtomicContainerFrame) 24 25 // Bypass the nsContainerFrame/nsSplittableFrame impl of the following 26 // methods so we behave like a leaf frame. 27 FrameSearchResult PeekOffsetNoAmount(bool aForward, 28 int32_t* aOffset) override { 29 return nsIFrame::PeekOffsetNoAmount(aForward, aOffset); 30 } 31 FrameSearchResult PeekOffsetCharacter( 32 bool aForward, int32_t* aOffset, 33 PeekOffsetCharacterOptions aOptions = 34 PeekOffsetCharacterOptions()) override { 35 return nsIFrame::PeekOffsetCharacter(aForward, aOffset, aOptions); 36 } 37 38 protected: 39 nsAtomicContainerFrame(ComputedStyle* aStyle, nsPresContext* aPresContext, 40 ClassID aID) 41 : nsContainerFrame(aStyle, aPresContext, aID) {} 42 }; 43 44 #endif // nsAtomicContainerFrame_h___