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 #ifndef nsLeafBoxFrame_h___ 7 #define nsLeafBoxFrame_h___ 8 9 #include "mozilla/Attributes.h" 10 #include "nsLeafFrame.h" 11 12 namespace mozilla { 13 class PresShell; 14 } // namespace mozilla 15 16 class nsLeafBoxFrame : public nsLeafFrame { 17 public: 18 NS_DECL_FRAMEARENA_HELPERS(nsLeafBoxFrame) 19 20 friend nsIFrame* NS_NewLeafBoxFrame(mozilla::PresShell* aPresShell, 21 ComputedStyle* aStyle); 22 23 virtual nsSize GetXULPrefSize(nsBoxLayoutState& aState) override; 24 virtual nsSize GetXULMinSize(nsBoxLayoutState& aState) override; 25 virtual nsSize GetXULMaxSize(nsBoxLayoutState& aState) override; 26 virtual nscoord GetXULFlex() override; 27 virtual nscoord GetXULBoxAscent(nsBoxLayoutState& aState) override; 28 IsFrameOfType(uint32_t aFlags)29 virtual bool IsFrameOfType(uint32_t aFlags) const override { 30 // This is bogus, but it's what we've always done. 31 // Note that nsLeafFrame is also eReplacedContainsBlock. 32 return nsLeafFrame::IsFrameOfType( 33 aFlags & ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock | 34 nsIFrame::eXULBox)); 35 } 36 37 #ifdef DEBUG_FRAME_DUMP 38 virtual nsresult GetFrameName(nsAString& aResult) const override; 39 #endif 40 41 // nsIHTMLReflow overrides 42 43 virtual nscoord GetMinISize(gfxContext* aRenderingContext) override; 44 virtual nscoord GetPrefISize(gfxContext* aRenderingContext) override; 45 46 // Our auto size is that provided by nsFrame, not nsLeafFrame 47 virtual mozilla::LogicalSize ComputeAutoSize( 48 gfxContext* aRenderingContext, mozilla::WritingMode aWM, 49 const mozilla::LogicalSize& aCBSize, nscoord aAvailableISize, 50 const mozilla::LogicalSize& aMargin, const mozilla::LogicalSize& aBorder, 51 const mozilla::LogicalSize& aPadding, ComputeSizeFlags aFlags) override; 52 53 virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize, 54 const ReflowInput& aReflowInput, 55 nsReflowStatus& aStatus) override; 56 57 virtual nsresult CharacterDataChanged( 58 const CharacterDataChangeInfo&) override; 59 60 virtual void Init(nsIContent* aContent, nsContainerFrame* aParent, 61 nsIFrame* asPrevInFlow) override; 62 63 virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, 64 const nsDisplayListSet& aLists) override; 65 XULComputesOwnOverflowArea()66 virtual bool XULComputesOwnOverflowArea() override { return false; } 67 68 protected: 69 NS_IMETHOD DoXULLayout(nsBoxLayoutState& aState) override; 70 71 virtual nscoord GetIntrinsicISize() override; 72 73 explicit nsLeafBoxFrame(ComputedStyle* aStyle, nsPresContext* aPresContext, 74 ClassID aID = kClassID) nsLeafFrame(aStyle,aPresContext,aID)75 : nsLeafFrame(aStyle, aPresContext, aID) {} 76 77 }; // class nsLeafBoxFrame 78 79 #endif /* nsLeafBoxFrame_h___ */ 80