зеркало из https://github.com/mozilla/gecko-dev.git
275 строки
10 KiB
C++
275 строки
10 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 nsTableWrapperFrame_h__
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#define nsTableWrapperFrame_h__
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#include "mozilla/Attributes.h"
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#include "mozilla/Maybe.h"
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#include "nscore.h"
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#include "nsContainerFrame.h"
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#include "nsCellMap.h"
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#include "nsTableFrame.h"
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namespace mozilla {
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class PresShell;
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} // namespace mozilla
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/**
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* Primary frame for a table element,
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* the nsTableWrapperFrame contains 0 or one caption frame, and a nsTableFrame
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* pseudo-frame (referred to as the "inner frame').
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*/
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class nsTableWrapperFrame : public nsContainerFrame {
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public:
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS(nsTableWrapperFrame)
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/** instantiate a new instance of nsTableRowFrame.
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* @param aPresShell the pres shell for this frame
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*
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* @return the frame that was created
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*/
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friend nsTableWrapperFrame* NS_NewTableWrapperFrame(
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mozilla::PresShell* aPresShell, ComputedStyle* aStyle);
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// nsIFrame overrides - see there for a description
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virtual void DestroyFrom(nsIFrame* aDestructRoot,
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PostDestroyData& aPostDestroyData) override;
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virtual const nsFrameList& GetChildList(ChildListID aListID) const override;
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virtual void GetChildLists(nsTArray<ChildList>* aLists) const override;
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virtual void SetInitialChildList(ChildListID aListID,
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nsFrameList& aChildList) override;
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virtual void AppendFrames(ChildListID aListID,
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nsFrameList& aFrameList) override;
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virtual void InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,
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nsFrameList& aFrameList) override;
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virtual void RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) override;
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virtual nsContainerFrame* GetContentInsertionFrame() override {
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return PrincipalChildList().FirstChild()->GetContentInsertionFrame();
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}
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#ifdef ACCESSIBILITY
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virtual mozilla::a11y::AccType AccessibleType() override;
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#endif
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) override;
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void BuildDisplayListForInnerTable(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists);
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virtual nscoord GetLogicalBaseline(
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mozilla::WritingMode aWritingMode) const override;
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bool GetNaturalBaselineBOffset(mozilla::WritingMode aWM,
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BaselineSharingGroup aBaselineGroup,
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nscoord* aBaseline) const override {
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auto innerTable = InnerTableFrame();
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nscoord offset;
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if (innerTable->GetNaturalBaselineBOffset(aWM, aBaselineGroup, &offset)) {
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auto bStart = innerTable->BStart(aWM, mRect.Size());
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if (aBaselineGroup == BaselineSharingGroup::eFirst) {
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*aBaseline = offset + bStart;
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} else {
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auto bEnd = bStart + innerTable->BSize(aWM);
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*aBaseline = BSize(aWM) - (bEnd - offset);
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}
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return true;
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}
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return false;
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}
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virtual nscoord GetMinISize(gfxContext* aRenderingContext) override;
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virtual nscoord GetPrefISize(gfxContext* aRenderingContext) override;
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virtual mozilla::LogicalSize ComputeAutoSize(
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gfxContext* aRenderingContext, mozilla::WritingMode aWM,
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const mozilla::LogicalSize& aCBSize, nscoord aAvailableISize,
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const mozilla::LogicalSize& aMargin, const mozilla::LogicalSize& aBorder,
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const mozilla::LogicalSize& aPadding, ComputeSizeFlags aFlags) override;
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/** process a reflow command for the table.
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* This involves reflowing the caption and the inner table.
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* @see nsIFrame::Reflow */
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virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
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const ReflowInput& aReflowInput,
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nsReflowStatus& aStatus) override;
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const override;
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#endif
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virtual ComputedStyle* GetParentComputedStyle(
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nsIFrame** aProviderFrame) const override;
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/**
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* Return the content for the cell at the given row and column.
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*/
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nsIContent* GetCellAt(uint32_t aRowIdx, uint32_t aColIdx) const;
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/**
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* Return the number of rows in the table.
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*/
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int32_t GetRowCount() const { return InnerTableFrame()->GetRowCount(); }
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/**
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* Return the number of columns in the table.
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*/
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int32_t GetColCount() const { return InnerTableFrame()->GetColCount(); }
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/**
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* Return the index of the cell at the given row and column.
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*/
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int32_t GetIndexByRowAndColumn(int32_t aRowIdx, int32_t aColIdx) const {
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nsTableCellMap* cellMap = InnerTableFrame()->GetCellMap();
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if (!cellMap) return -1;
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return cellMap->GetIndexByRowAndColumn(aRowIdx, aColIdx);
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}
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/**
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* Get the row and column indices for the cell at the given index.
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*/
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void GetRowAndColumnByIndex(int32_t aCellIdx, int32_t* aRowIdx,
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int32_t* aColIdx) const {
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*aRowIdx = *aColIdx = 0;
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nsTableCellMap* cellMap = InnerTableFrame()->GetCellMap();
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if (cellMap) {
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cellMap->GetRowAndColumnByIndex(aCellIdx, aRowIdx, aColIdx);
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}
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}
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/**
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* return the frame for the cell at the given row and column.
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*/
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nsTableCellFrame* GetCellFrameAt(uint32_t aRowIdx, uint32_t aColIdx) const {
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nsTableCellMap* map = InnerTableFrame()->GetCellMap();
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if (!map) {
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return nullptr;
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}
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return map->GetCellInfoAt(aRowIdx, aColIdx);
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}
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/**
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* Return the col span of the cell at the given row and column indices.
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*/
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uint32_t GetEffectiveColSpanAt(uint32_t aRowIdx, uint32_t aColIdx) const {
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nsTableCellMap* map = InnerTableFrame()->GetCellMap();
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return map->GetEffectiveColSpan(aRowIdx, aColIdx);
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}
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/**
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* Return the effective row span of the cell at the given row and column.
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*/
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uint32_t GetEffectiveRowSpanAt(uint32_t aRowIdx, uint32_t aColIdx) const {
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nsTableCellMap* map = InnerTableFrame()->GetCellMap();
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return map->GetEffectiveRowSpan(aRowIdx, aColIdx);
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}
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/**
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* The CB size to use for the inner table frame if we're a grid item.
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*/
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NS_DECLARE_FRAME_PROPERTY_DELETABLE(GridItemCBSizeProperty,
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mozilla::LogicalSize);
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protected:
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explicit nsTableWrapperFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext,
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ClassID aID = kClassID);
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virtual ~nsTableWrapperFrame();
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void InitChildReflowInput(nsPresContext& aPresContext,
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const ReflowInput& aOuterRS,
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ReflowInput& aReflowInput);
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// Get a NS_STYLE_CAPTION_SIDE_* value, or NO_SIDE if no caption is present.
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// (Remember that caption-side values are interpreted logically, despite
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// having "physical" names.)
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uint8_t GetCaptionSide();
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bool HasSideCaption() {
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uint8_t captionSide = GetCaptionSide();
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return captionSide == NS_STYLE_CAPTION_SIDE_LEFT ||
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captionSide == NS_STYLE_CAPTION_SIDE_RIGHT;
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}
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uint8_t GetCaptionVerticalAlign();
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void SetDesiredSize(uint8_t aCaptionSide,
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const mozilla::LogicalSize& aInnerSize,
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const mozilla::LogicalSize& aCaptionSize,
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const mozilla::LogicalMargin& aInnerMargin,
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const mozilla::LogicalMargin& aCaptionMargin,
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nscoord& aISize, nscoord& aBSize,
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mozilla::WritingMode aWM);
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nsresult GetCaptionOrigin(uint32_t aCaptionSide,
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const mozilla::LogicalSize& aContainBlockSize,
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const mozilla::LogicalSize& aInnerSize,
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const mozilla::LogicalMargin& aInnerMargin,
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const mozilla::LogicalSize& aCaptionSize,
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mozilla::LogicalMargin& aCaptionMargin,
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mozilla::LogicalPoint& aOrigin,
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mozilla::WritingMode aWM);
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nsresult GetInnerOrigin(uint32_t aCaptionSide,
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const mozilla::LogicalSize& aContainBlockSize,
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const mozilla::LogicalSize& aCaptionSize,
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const mozilla::LogicalMargin& aCaptionMargin,
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const mozilla::LogicalSize& aInnerSize,
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mozilla::LogicalMargin& aInnerMargin,
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mozilla::LogicalPoint& aOrigin,
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mozilla::WritingMode aWM);
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// reflow the child (caption or innertable frame)
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void OuterBeginReflowChild(nsPresContext* aPresContext, nsIFrame* aChildFrame,
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const ReflowInput& aOuterRI,
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mozilla::Maybe<ReflowInput>& aChildRI,
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nscoord aAvailISize);
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void OuterDoReflowChild(nsPresContext* aPresContext, nsIFrame* aChildFrame,
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const ReflowInput& aChildRI, ReflowOutput& aMetrics,
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nsReflowStatus& aStatus);
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// Set the overflow areas in our reflow metrics
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void UpdateOverflowAreas(ReflowOutput& aMet);
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// Get the margin.
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void GetChildMargin(nsPresContext* aPresContext, const ReflowInput& aOuterRI,
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nsIFrame* aChildFrame, nscoord aAvailableWidth,
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mozilla::LogicalMargin& aMargin);
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virtual bool IsFrameOfType(uint32_t aFlags) const override {
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return nsContainerFrame::IsFrameOfType(aFlags &
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(~eCanContainOverflowContainers));
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}
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nsTableFrame* InnerTableFrame() const {
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return static_cast<nsTableFrame*>(mFrames.FirstChild());
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}
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/**
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* Helper for ComputeAutoSize.
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* Compute the margin-box inline size of aChildFrame given the inputs.
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* If aMarginResult is non-null, fill it with the part of the
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* margin-isize that was contributed by the margin.
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*/
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nscoord ChildShrinkWrapISize(gfxContext* aRenderingContext,
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nsIFrame* aChildFrame, mozilla::WritingMode aWM,
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mozilla::LogicalSize aCBSize,
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nscoord aAvailableISize,
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nscoord* aMarginResult = nullptr) const;
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private:
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nsFrameList mCaptionFrames;
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};
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#endif
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