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gecko-dev/layout/tables/nsTableFrame.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 nsTableFrame_h__
#define nsTableFrame_h__
#include "mozilla/Attributes.h"
#include "celldata.h"
#include "nscore.h"
#include "nsContainerFrame.h"
#include "nsStyleCoord.h"
#include "nsStyleConsts.h"
#include "nsTableColFrame.h"
#include "nsTableColGroupFrame.h"
#include "nsCellMap.h"
#include "nsGkAtoms.h"
#include "nsDisplayList.h"
class nsTableCellFrame;
class nsTableCellMap;
class nsTableColFrame;
class nsColGroupFrame;
class nsTableRowGroupFrame;
class nsTableRowFrame;
class nsTableColGroupFrame;
class nsITableLayoutStrategy;
class nsStyleContext;
struct nsTableReflowState;
struct nsStylePosition;
struct BCPropertyData;
static inline bool IS_TABLE_CELL(nsIAtom* frameType) {
return nsGkAtoms::tableCellFrame == frameType ||
nsGkAtoms::bcTableCellFrame == frameType;
}
static inline bool FrameHasBorderOrBackground(nsIFrame* f) {
return (f->StyleVisibility()->IsVisible() &&
(!f->StyleBackground()->IsTransparent() ||
f->StyleDisplay()->mAppearance ||
f->StyleBorder()->HasBorder()));
}
class nsDisplayTableItem : public nsDisplayItem
{
public:
nsDisplayTableItem(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame) :
nsDisplayItem(aBuilder, aFrame),
mPartHasFixedBackground(false) {}
// With collapsed borders, parts of the collapsed border can extend outside
// the table part frames, so allow this display element to blow out to our
// overflow rect. This is also useful for row frames that have spanning
// cells extending outside them.
virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap) MOZ_OVERRIDE;
void UpdateForFrameBackground(nsIFrame* aFrame);
private:
bool mPartHasFixedBackground;
};
class nsAutoPushCurrentTableItem
{
public:
nsAutoPushCurrentTableItem() : mBuilder(nullptr) {}
void Push(nsDisplayListBuilder* aBuilder, nsDisplayTableItem* aPushItem)
{
mBuilder = aBuilder;
mOldCurrentItem = aBuilder->GetCurrentTableItem();
aBuilder->SetCurrentTableItem(aPushItem);
#ifdef DEBUG
mPushedItem = aPushItem;
#endif
}
~nsAutoPushCurrentTableItem() {
if (!mBuilder)
return;
#ifdef DEBUG
NS_ASSERTION(mBuilder->GetCurrentTableItem() == mPushedItem,
"Someone messed with the current table item behind our back!");
#endif
mBuilder->SetCurrentTableItem(mOldCurrentItem);
}
private:
nsDisplayListBuilder* mBuilder;
nsDisplayTableItem* mOldCurrentItem;
#ifdef DEBUG
nsDisplayTableItem* mPushedItem;
#endif
};
/* ============================================================================ */
/**
* nsTableFrame maps the inner portion of a table (everything except captions.)
* Used as a pseudo-frame within nsTableOuterFrame, it may also be used
* stand-alone as the top-level frame.
*
* The principal child list contains row group frames. There is also an
* additional child list, kColGroupList, which contains the col group frames.
*/
class nsTableFrame : public nsContainerFrame
{
public:
NS_DECL_FRAMEARENA_HELPERS
static void DestroyPositionedTablePartArray(void* aPropertyValue);
NS_DECLARE_FRAME_PROPERTY(PositionedTablePartArray, DestroyPositionedTablePartArray)
/** nsTableOuterFrame has intimate knowledge of the inner table frame */
friend class nsTableOuterFrame;
/** instantiate a new instance of nsTableRowFrame.
* @param aPresShell the pres shell for this frame
*
* @return the frame that was created
*/
friend nsTableFrame* NS_NewTableFrame(nsIPresShell* aPresShell,
nsStyleContext* aContext);
/** sets defaults for table-specific style.
* @see nsIFrame::Init
*/
virtual void Init(nsIContent* aContent,
nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) MOZ_OVERRIDE;
static float GetTwipsToPixels(nsPresContext* aPresContext);
// Return true if aParentReflowState.frame or any of its ancestors within
// the containing table have non-auto height. (e.g. pct or fixed height)
static bool AncestorsHaveStyleHeight(const nsHTMLReflowState& aParentReflowState);
// See if a special height reflow will occur due to having a pct height when
// the pct height basis may not yet be valid.
static void CheckRequestSpecialHeightReflow(const nsHTMLReflowState& aReflowState);
// Notify the frame and its ancestors (up to the containing table) that a special
// height reflow will occur.
static void RequestSpecialHeightReflow(const nsHTMLReflowState& aReflowState);
static void RePositionViews(nsIFrame* aFrame);
static bool PageBreakAfter(nsIFrame* aSourceFrame,
nsIFrame* aNextFrame);
// Register a positioned table part with its nsTableFrame. These objects will
// be visited by FixupPositionedTableParts after reflow is complete. (See that
// function for more explanation.) Should be called during frame construction.
static void RegisterPositionedTablePart(nsIFrame* aFrame);
// Unregister a positioned table part with its nsTableFrame.
static void UnregisterPositionedTablePart(nsIFrame* aFrame,
nsIFrame* aDestructRoot);
nsPoint GetFirstSectionOrigin(const nsHTMLReflowState& aReflowState) const;
/*
* Notification that aAttribute has changed for content inside a table (cell, row, etc)
*/
void AttributeChangedFor(nsIFrame* aFrame,
nsIContent* aContent,
nsIAtom* aAttribute);
/** @see nsIFrame::DestroyFrom */
virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
/** @see nsIFrame::DidSetStyleContext */
virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) MOZ_OVERRIDE;
virtual void SetInitialChildList(ChildListID aListID,
nsFrameList& aChildList) MOZ_OVERRIDE;
virtual void AppendFrames(ChildListID aListID,
nsFrameList& aFrameList) MOZ_OVERRIDE;
virtual void InsertFrames(ChildListID aListID,
nsIFrame* aPrevFrame,
nsFrameList& aFrameList) MOZ_OVERRIDE;
virtual void RemoveFrame(ChildListID aListID,
nsIFrame* aOldFrame) MOZ_OVERRIDE;
virtual nsMargin GetUsedBorder() const MOZ_OVERRIDE;
virtual nsMargin GetUsedPadding() const MOZ_OVERRIDE;
virtual nsMargin GetUsedMargin() const MOZ_OVERRIDE;
// Get the offset from the border box to the area where the row groups fit
nsMargin GetChildAreaOffset(const nsHTMLReflowState* aReflowState) const;
/** helper method to find the table parent of any table frame object */
static nsTableFrame* GetTableFrame(nsIFrame* aSourceFrame);
/* Like GetTableFrame, but will return nullptr if we don't pass through
* aMustPassThrough on the way to the table.
*/
static nsTableFrame* GetTableFramePassingThrough(nsIFrame* aMustPassThrough,
nsIFrame* aSourceFrame);
typedef void (* DisplayGenericTablePartTraversal)
(nsDisplayListBuilder* aBuilder, nsFrame* aFrame,
const nsRect& aDirtyRect, const nsDisplayListSet& aLists);
static void GenericTraversal(nsDisplayListBuilder* aBuilder, nsFrame* aFrame,
const nsRect& aDirtyRect, const nsDisplayListSet& aLists);
/**
* Helper method to handle display common to table frames, rowgroup frames
* and row frames. It creates a background display item for handling events
* if necessary, an outline display item if necessary, and displays
* all the the frame's children.
* @param aDisplayItem the display item created for this part, or null
* if this part's border/background painting is delegated to an ancestor
* @param aTraversal a function that gets called to traverse the table
* part's child frames and add their display list items to a
* display list set.
*/
static void DisplayGenericTablePart(nsDisplayListBuilder* aBuilder,
nsFrame* aFrame,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists,
nsDisplayTableItem* aDisplayItem,
DisplayGenericTablePartTraversal aTraversal = GenericTraversal);
// Return the closest sibling of aPriorChildFrame (including aPriroChildFrame)
// of type aChildType.
static nsIFrame* GetFrameAtOrBefore(nsIFrame* aParentFrame,
nsIFrame* aPriorChildFrame,
nsIAtom* aChildType);
bool IsAutoHeight();
/** @return true if aDisplayType represents a rowgroup of any sort
* (header, footer, or body)
*/
bool IsRowGroup(int32_t aDisplayType) const;
virtual const nsFrameList& GetChildList(ChildListID aListID) const MOZ_OVERRIDE;
virtual void GetChildLists(nsTArray<ChildList>* aLists) const MOZ_OVERRIDE;
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists) MOZ_OVERRIDE;
/**
* Paint the background of the table and its parts (column groups,
* columns, row groups, rows, and cells), and the table border, and all
* internal borders if border-collapse is on.
*/
void PaintTableBorderBackground(nsRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsPoint aPt, uint32_t aBGPaintFlags);
/**
* Determines if any table part has a background image that is currently not
* decoded. Does not look into cell contents (ie only table parts).
*/
static bool AnyTablePartHasUndecodedBackgroundImage(nsIFrame* aStart,
nsIFrame* aEnd);
/** Get the outer half (i.e., the part outside the height and width of
* the table) of the largest segment (?) of border-collapsed border on
* the table on each side, or 0 for non border-collapsed tables.
*/
nsMargin GetOuterBCBorder() const;
/** Same as above, but only if it's included from the border-box width
* of the table.
*/
nsMargin GetIncludedOuterBCBorder() const;
/** Same as above, but only if it's excluded from the border-box width
* of the table. This is the area that leaks out into the margin
* (or potentially past it, if there is no margin).
*/
nsMargin GetExcludedOuterBCBorder() const;
/**
* In quirks mode, the size of the table background is reduced
* by the outer BC border. Compute the reduction needed.
*/
nsMargin GetDeflationForBackground(nsPresContext* aPresContext) const;
/** Get width of table + colgroup + col collapse: elements that
* continue along the length of the whole left side.
* see nsTablePainter about continuous borders
*/
nscoord GetContinuousLeftBCBorderWidth() const;
void SetContinuousLeftBCBorderWidth(nscoord aValue);
friend class nsDelayedCalcBCBorders;
void AddBCDamageArea(const nsIntRect& aValue);
bool BCRecalcNeeded(nsStyleContext* aOldStyleContext,
nsStyleContext* aNewStyleContext);
void PaintBCBorders(nsRenderingContext& aRenderingContext,
const nsRect& aDirtyRect);
virtual void MarkIntrinsicISizesDirty() MOZ_OVERRIDE;
// For border-collapse tables, the caller must not add padding and
// border to the results of these functions.
virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
virtual IntrinsicISizeOffsetData
IntrinsicISizeOffsets(nsRenderingContext* aRenderingContext) MOZ_OVERRIDE;
virtual mozilla::LogicalSize
ComputeSize(nsRenderingContext *aRenderingContext,
mozilla::WritingMode aWritingMode,
const mozilla::LogicalSize& aCBSize,
nscoord aAvailableISize,
const mozilla::LogicalSize& aMargin,
const mozilla::LogicalSize& aBorder,
const mozilla::LogicalSize& aPadding,
uint32_t aFlags) MOZ_OVERRIDE;
virtual mozilla::LogicalSize
ComputeAutoSize(nsRenderingContext *aRenderingContext,
mozilla::WritingMode aWritingMode,
const mozilla::LogicalSize& aCBSize,
nscoord aAvailableISize,
const mozilla::LogicalSize& aMargin,
const mozilla::LogicalSize& aBorder,
const mozilla::LogicalSize& aPadding,
bool aShrinkWrap) MOZ_OVERRIDE;
/**
* A copy of nsFrame::ShrinkWidthToFit that calls a different
* GetPrefISize, since tables have two different ones.
*/
nscoord TableShrinkWidthToFit(nsRenderingContext *aRenderingContext,
nscoord aWidthInCB);
// XXXldb REWRITE THIS COMMENT!
/** inner tables are reflowed in two steps.
* <pre>
* if mFirstPassValid is false, this is our first time through since content was last changed
* set pass to 1
* do pass 1
* get min/max info for all cells in an infinite space
* do column balancing
* set mFirstPassValid to true
* do pass 2
* use column widths to Reflow cells
* </pre>
*
* @see nsIFrame::Reflow
*/
virtual void Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus) MOZ_OVERRIDE;
void ReflowTable(nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nscoord aAvailHeight,
nsIFrame*& aLastChildReflowed,
nsReflowStatus& aStatus);
nsFrameList& GetColGroups();
virtual nsIFrame* GetParentStyleContextFrame() const MOZ_OVERRIDE;
/**
* Get the "type" of the frame
*
* @see nsGkAtoms::tableFrame
*/
virtual nsIAtom* GetType() const MOZ_OVERRIDE;
virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
{
if (aFlags & eSupportsCSSTransforms) {
return false;
}
return nsContainerFrame::IsFrameOfType(aFlags);
}
#ifdef DEBUG_FRAME_DUMP
/** @see nsIFrame::GetFrameName */
virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
#endif
/** return the width of the column at aColIndex */
int32_t GetColumnWidth(int32_t aColIndex);
/** Helper to get the cell spacing X style value.
* The argument refers to the space between column aColIndex and column
* aColIndex + 1. An index of -1 indicates the padding between the table
* and the left border, an index equal to the number of columns indicates
* the padding between the table and the right border.
*
* Although in this class cell spacing does not depend on the index, it
* may be important for overriding classes.
*/
virtual nscoord GetCellSpacingX(int32_t aColIndex);
/** Helper to find the sum of the cell spacing between arbitrary columns.
* The argument refers to the space between column aColIndex and column
* aColIndex + 1. An index of -1 indicates the padding between the table
* and the left border, an index equal to the number of columns indicates
* the padding between the table and the right border.
*
* This method is equivalent to
* nscoord result = 0;
* for (i = aStartColIndex; i < aEndColIndex; i++) {
* result += GetCellSpacingX(i);
* }
* return result;
*/
virtual nscoord GetCellSpacingX(int32_t aStartColIndex,
int32_t aEndColIndex);
/** Helper to get the cell spacing Y style value.
* The argument refers to the space between row aRowIndex and row
* aRowIndex + 1. An index of -1 indicates the padding between the table
* and the top border, an index equal to the number of rows indicates
* the padding between the table and the bottom border.
*
* Although in this class cell spacing does not depend on the index, it
* may be important for overriding classes.
*/
virtual nscoord GetCellSpacingY(int32_t aRowIndex);
/** Helper to find the sum of the cell spacing between arbitrary rows.
* The argument refers to the space between row aRowIndex and row
* aRowIndex + 1. An index of -1 indicates the padding between the table
* and the top border, an index equal to the number of rows indicates
* the padding between the table and the bottom border.
*
* This method is equivalent to
* nscoord result = 0;
* for (i = aStartRowIndex; i < aEndRowIndex; i++) {
* result += GetCellSpacingY(i);
* }
* return result;
*/
virtual nscoord GetCellSpacingY(int32_t aStartRowIndex,
int32_t aEndRowIndex);
private:
/* For the base implementation of nsTableFrame, cell spacing does not depend
* on row/column indexing.
*/
nscoord GetCellSpacingX();
nscoord GetCellSpacingY();
public:
virtual nscoord GetLogicalBaseline(mozilla::WritingMode aWritingMode) const MOZ_OVERRIDE;
/** return the row span of a cell, taking into account row span magic at the bottom
* of a table. The row span equals the number of rows spanned by aCell starting at
* aStartRowIndex, and can be smaller if aStartRowIndex is greater than the row
* index in which aCell originates.
*
* @param aStartRowIndex the cell
* @param aCell the cell
*
* @return the row span, correcting for row spans that extend beyond the bottom
* of the table.
*/
int32_t GetEffectiveRowSpan(int32_t aStartRowIndex,
const nsTableCellFrame& aCell) const;
int32_t GetEffectiveRowSpan(const nsTableCellFrame& aCell,
nsCellMap* aCellMap = nullptr);
/** return the col span of a cell, taking into account col span magic at the edge
* of a table.
*
* @param aCell the cell
*
* @return the col span, correcting for col spans that extend beyond the edge
* of the table.
*/
int32_t GetEffectiveColSpan(const nsTableCellFrame& aCell,
nsCellMap* aCellMap = nullptr) const;
/** indicate whether the row has more than one cell that either originates
* or is spanned from the rows above
*/
bool HasMoreThanOneCell(int32_t aRowIndex) const;
/** return the column frame associated with aColIndex
* returns nullptr if the col frame has not yet been allocated, or if
* aColIndex is out of range
*/
nsTableColFrame* GetColFrame(int32_t aColIndex) const;
/** Insert a col frame reference into the colframe cache and adapt the cellmap
* @param aColFrame - the column frame
* @param aColIndex - index where the column should be inserted into the
* colframe cache
*/
void InsertCol(nsTableColFrame& aColFrame,
int32_t aColIndex);
nsTableColGroupFrame* CreateAnonymousColGroupFrame(nsTableColGroupType aType);
int32_t DestroyAnonymousColFrames(int32_t aNumFrames);
// Append aNumColsToAdd anonymous col frames of type eColAnonymousCell to our
// last eColGroupAnonymousCell colgroup. If we have no such colgroup, then
// create one.
void AppendAnonymousColFrames(int32_t aNumColsToAdd);
// Append aNumColsToAdd anonymous col frames of type aColType to
// aColGroupFrame. If aAddToTable is true, also call AddColsToTable on the
// new cols.
void AppendAnonymousColFrames(nsTableColGroupFrame* aColGroupFrame,
int32_t aNumColsToAdd,
nsTableColType aColType,
bool aAddToTable);
void MatchCellMapToColCache(nsTableCellMap* aCellMap);
/** empty the column frame cache */
void ClearColCache();
void DidResizeColumns();
void AppendCell(nsTableCellFrame& aCellFrame,
int32_t aRowIndex);
void InsertCells(nsTArray<nsTableCellFrame*>& aCellFrames,
int32_t aRowIndex,
int32_t aColIndexBefore);
void RemoveCell(nsTableCellFrame* aCellFrame,
int32_t aRowIndex);
void AppendRows(nsTableRowGroupFrame* aRowGroupFrame,
int32_t aRowIndex,
nsTArray<nsTableRowFrame*>& aRowFrames);
int32_t InsertRows(nsTableRowGroupFrame* aRowGroupFrame,
nsTArray<nsTableRowFrame*>& aFrames,
int32_t aRowIndex,
bool aConsiderSpans);
void RemoveRows(nsTableRowFrame& aFirstRowFrame,
int32_t aNumRowsToRemove,
bool aConsiderSpans);
/** Insert multiple rowgroups into the table cellmap handling
* @param aRowGroups - iterator that iterates over the rowgroups to insert
*/
void InsertRowGroups(const nsFrameList::Slice& aRowGroups);
void InsertColGroups(int32_t aStartColIndex,
const nsFrameList::Slice& aColgroups);
void RemoveCol(nsTableColGroupFrame* aColGroupFrame,
int32_t aColIndex,
bool aRemoveFromCache,
bool aRemoveFromCellMap);
bool ColumnHasCellSpacingBefore(int32_t aColIndex) const;
bool HasPctCol() const;
void SetHasPctCol(bool aValue);
bool HasCellSpanningPctCol() const;
void SetHasCellSpanningPctCol(bool aValue);
/**
* To be called on a frame by its parent after setting its size/position and
* calling DidReflow (possibly via FinishReflowChild()). This can also be
* used for child frames which are not being reflowed but did have their size
* or position changed.
*
* @param aFrame The frame to invalidate
* @param aOrigRect The original rect of aFrame (before the change).
* @param aOrigVisualOverflow The original overflow rect of aFrame.
* @param aIsFirstReflow True if the size/position change is due to the
* first reflow of aFrame.
*/
static void InvalidateTableFrame(nsIFrame* aFrame,
const nsRect& aOrigRect,
const nsRect& aOrigVisualOverflow,
bool aIsFirstReflow);
virtual bool UpdateOverflow() MOZ_OVERRIDE;
protected:
/** protected constructor.
* @see NewFrame
*/
explicit nsTableFrame(nsStyleContext* aContext);
/** destructor, responsible for mColumnLayoutData */
virtual ~nsTableFrame();
void InitChildReflowState(nsHTMLReflowState& aReflowState);
virtual LogicalSides GetLogicalSkipSides(const nsHTMLReflowState* aReflowState = nullptr) const MOZ_OVERRIDE;
public:
bool IsRowInserted() const;
void SetRowInserted(bool aValue);
protected:
// A helper function to reflow a header or footer with unconstrained height
// to see if it should be made repeatable and also to determine its desired
// height.
nsresult SetupHeaderFooterChild(const nsTableReflowState& aReflowState,
nsTableRowGroupFrame* aFrame,
nscoord* aDesiredHeight);
void ReflowChildren(nsTableReflowState& aReflowState,
nsReflowStatus& aStatus,
nsIFrame*& aLastChildReflowed,
nsOverflowAreas& aOverflowAreas);
// This calls the col group and column reflow methods, which do two things:
// (1) set all the dimensions to 0
// (2) notify the table about colgroups or columns with hidden visibility
void ReflowColGroups(nsRenderingContext* aRenderingContext);
/** return the width of the table taking into account visibility collapse
* on columns and colgroups
* @param aBorderPadding the border and padding of the table
*/
nscoord GetCollapsedWidth(nsMargin aBorderPadding);
/** Adjust the table for visibility.collapse set on rowgroups, rows,
* colgroups and cols
* @param aDesiredSize the metrics of the table
* @param aBorderPadding the border and padding of the table
*/
void AdjustForCollapsingRowsCols(nsHTMLReflowMetrics& aDesiredSize,
nsMargin aBorderPadding);
/** FixupPositionedTableParts is called at the end of table reflow to reflow
* the absolutely positioned descendants of positioned table parts. This is
* necessary because the dimensions of table parts may change after they've
* been reflowed (e.g. in AdjustForCollapsingRowsCols).
*/
void FixupPositionedTableParts(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState);
// Clears the list of positioned table parts.
void ClearAllPositionedTableParts();
nsITableLayoutStrategy* LayoutStrategy() const {
return static_cast<nsTableFrame*>(FirstInFlow())->
mTableLayoutStrategy;
}
// Helper for InsertFrames.
void HomogenousInsertFrames(ChildListID aListID,
nsIFrame* aPrevFrame,
nsFrameList& aFrameList);
private:
/* Handle a row that got inserted during reflow. aNewHeight is the
new height of the table after reflow. */
void ProcessRowInserted(nscoord aNewHeight);
// WIDTH AND HEIGHT CALCULATION
public:
// calculate the computed height of aFrame including its border and padding given
// its reflow state.
nscoord CalcBorderBoxHeight(const nsHTMLReflowState& aReflowState);
protected:
// update the desired height of this table taking into account the current
// reflow state, the table attributes and the content driven rowgroup heights
// this function can change the overflow area
void CalcDesiredHeight(const nsHTMLReflowState& aReflowState, nsHTMLReflowMetrics& aDesiredSize);
// The following is a helper for CalcDesiredHeight
void DistributeHeightToRows(const nsHTMLReflowState& aReflowState,
nscoord aAmount);
void PlaceChild(nsTableReflowState& aReflowState,
nsIFrame* aKidFrame,
nsHTMLReflowMetrics& aKidDesiredSize,
const nsRect& aOriginalKidRect,
const nsRect& aOriginalKidVisualOverflow);
void PlaceRepeatedFooter(nsTableReflowState& aReflowState,
nsTableRowGroupFrame *aTfoot,
nscoord aFooterHeight);
nsIFrame* GetFirstBodyRowGroupFrame();
public:
typedef nsAutoTArray<nsTableRowGroupFrame*, 8> RowGroupArray;
/**
* Push all our child frames from the aRowGroups array, in order, starting
* from the frame at aPushFrom to the end of the array. The frames are put on
* our overflow list or moved directly to our next-in-flow if one exists.
*/
protected:
void PushChildren(const RowGroupArray& aRowGroups, int32_t aPushFrom);
public:
// put the children frames in the display order (e.g. thead before tbodies
// before tfoot). This will handle calling GetRowGroupFrame() on the
// children, and not append nulls, so the array is guaranteed to contain
// nsTableRowGroupFrames. If there are multiple theads or tfoots, all but
// the first one are treated as tbodies instead.
void OrderRowGroups(RowGroupArray& aChildren,
nsTableRowGroupFrame** aHead = nullptr,
nsTableRowGroupFrame** aFoot = nullptr) const;
// Return the thead, if any
nsTableRowGroupFrame* GetTHead() const;
// Return the tfoot, if any
nsTableRowGroupFrame* GetTFoot() const;
// Returns true if there are any cells above the row at
// aRowIndex and spanning into the row at aRowIndex, the number of
// effective columns limits the search up to that column
bool RowIsSpannedInto(int32_t aRowIndex, int32_t aNumEffCols);
// Returns true if there is a cell originating in aRowIndex
// which spans into the next row, the number of effective
// columns limits the search up to that column
bool RowHasSpanningCells(int32_t aRowIndex, int32_t aNumEffCols);
protected:
bool HaveReflowedColGroups() const;
void SetHaveReflowedColGroups(bool aValue);
public:
bool IsBorderCollapse() const;
bool NeedToCalcBCBorders() const;
void SetNeedToCalcBCBorders(bool aValue);
bool NeedToCollapse() const;
void SetNeedToCollapse(bool aValue);
bool HasZeroColSpans() const;
void SetHasZeroColSpans(bool aValue);
bool NeedColSpanExpansion() const;
void SetNeedColSpanExpansion(bool aValue);
/** The GeometryDirty bit is similar to the NS_FRAME_IS_DIRTY frame
* state bit, which implies that all descendants are dirty. The
* GeometryDirty still implies that all the parts of the table are
* dirty, but resizing optimizations should still apply to the
* contents of the individual cells.
*/
void SetGeometryDirty() { mBits.mGeometryDirty = true; }
void ClearGeometryDirty() { mBits.mGeometryDirty = false; }
bool IsGeometryDirty() const { return mBits.mGeometryDirty; }
/** Get the cell map for this table frame. It is not always mCellMap.
* Only the firstInFlow has a legit cell map
*/
nsTableCellMap* GetCellMap() const;
/** Iterate over the row groups and adjust the row indices of all rows
* whose index is >= aRowIndex.
* @param aRowIndex - start adjusting with this index
* @param aAdjustment - shift the row index by this amount
*/
void AdjustRowIndices(int32_t aRowIndex,
int32_t aAdjustment);
/** Reset the rowindices of all rows as they might have changed due to
* rowgroup reordering, exclude new row group frames that show in the
* reordering but are not yet inserted into the cellmap
* @param aRowGroupsToExclude - an iterator that will produce the row groups
* to exclude.
*/
void ResetRowIndices(const nsFrameList::Slice& aRowGroupsToExclude);
nsTArray<nsTableColFrame*>& GetColCache();
protected:
void SetBorderCollapse(bool aValue);
BCPropertyData* GetBCProperty(bool aCreateIfNecessary = false) const;
void SetFullBCDamageArea();
void CalcBCBorders();
void ExpandBCDamageArea(nsIntRect& aRect) const;
void SetColumnDimensions(nscoord aHeight,
const nsMargin& aReflowState);
int32_t CollectRows(nsIFrame* aFrame,
nsTArray<nsTableRowFrame*>& aCollection);
public: /* ----- Cell Map public methods ----- */
int32_t GetStartRowIndex(nsTableRowGroupFrame* aRowGroupFrame);
/** returns the number of rows in this table.
*/
int32_t GetRowCount () const
{
return GetCellMap()->GetRowCount();
}
/** returns the number of columns in this table after redundant columns have been removed
*/
int32_t GetEffectiveColCount() const;
/* return the col count including dead cols */
int32_t GetColCount () const
{
return GetCellMap()->GetColCount();
}
// return the last col index which isn't of type eColAnonymousCell
int32_t GetIndexOfLastRealCol();
/** returns true if table-layout:auto */
bool IsAutoLayout();
public:
#ifdef DEBUG
void Dump(bool aDumpRows,
bool aDumpCols,
bool aDumpCellMap);
#endif
protected:
/**
* Helper method for RemoveFrame.
*/
void DoRemoveFrame(ChildListID aListID, nsIFrame* aOldFrame);
#ifdef DEBUG
void DumpRowGroup(nsIFrame* aChildFrame);
#endif
// DATA MEMBERS
nsAutoTArray<nsTableColFrame*, 8> mColFrames;
struct TableBits {
uint32_t mHaveReflowedColGroups:1; // have the col groups gotten their initial reflow
uint32_t mHasPctCol:1; // does any cell or col have a pct width
uint32_t mCellSpansPctCol:1; // does any cell span a col with a pct width (or containing a cell with a pct width)
uint32_t mIsBorderCollapse:1; // border collapsing model vs. separate model
uint32_t mRowInserted:1;
uint32_t mNeedToCalcBCBorders:1;
uint32_t mGeometryDirty:1;
uint32_t mLeftContBCBorder:8;
uint32_t mNeedToCollapse:1; // rows, cols that have visibility:collapse need to be collapsed
uint32_t mHasZeroColSpans:1;
uint32_t mNeedColSpanExpansion:1;
uint32_t mResizedColumns:1; // have we resized columns since last reflow?
} mBits;
nsTableCellMap* mCellMap; // maintains the relationships between rows, cols, and cells
nsITableLayoutStrategy* mTableLayoutStrategy;// the layout strategy for this frame
nsFrameList mColGroups; // the list of colgroup frames
};
inline bool nsTableFrame::IsRowGroup(int32_t aDisplayType) const
{
return bool((NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == aDisplayType) ||
(NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == aDisplayType) ||
(NS_STYLE_DISPLAY_TABLE_ROW_GROUP == aDisplayType));
}
inline void nsTableFrame::SetHaveReflowedColGroups(bool aValue)
{
mBits.mHaveReflowedColGroups = aValue;
}
inline bool nsTableFrame::HaveReflowedColGroups() const
{
return (bool)mBits.mHaveReflowedColGroups;
}
inline bool nsTableFrame::HasPctCol() const
{
return (bool)mBits.mHasPctCol;
}
inline void nsTableFrame::SetHasPctCol(bool aValue)
{
mBits.mHasPctCol = (unsigned)aValue;
}
inline bool nsTableFrame::HasCellSpanningPctCol() const
{
return (bool)mBits.mCellSpansPctCol;
}
inline void nsTableFrame::SetHasCellSpanningPctCol(bool aValue)
{
mBits.mCellSpansPctCol = (unsigned)aValue;
}
inline bool nsTableFrame::IsRowInserted() const
{
return (bool)mBits.mRowInserted;
}
inline void nsTableFrame::SetRowInserted(bool aValue)
{
mBits.mRowInserted = (unsigned)aValue;
}
inline void nsTableFrame::SetNeedToCollapse(bool aValue)
{
static_cast<nsTableFrame*>(FirstInFlow())->mBits.mNeedToCollapse = (unsigned)aValue;
}
inline bool nsTableFrame::NeedToCollapse() const
{
return (bool) static_cast<nsTableFrame*>(FirstInFlow())->mBits.mNeedToCollapse;
}
inline void nsTableFrame::SetHasZeroColSpans(bool aValue)
{
mBits.mHasZeroColSpans = (unsigned)aValue;
}
inline bool nsTableFrame::HasZeroColSpans() const
{
return (bool)mBits.mHasZeroColSpans;
}
inline void nsTableFrame::SetNeedColSpanExpansion(bool aValue)
{
mBits.mNeedColSpanExpansion = (unsigned)aValue;
}
inline bool nsTableFrame::NeedColSpanExpansion() const
{
return (bool)mBits.mNeedColSpanExpansion;
}
inline nsFrameList& nsTableFrame::GetColGroups()
{
return static_cast<nsTableFrame*>(FirstInFlow())->mColGroups;
}
inline nsTArray<nsTableColFrame*>& nsTableFrame::GetColCache()
{
return mColFrames;
}
inline bool nsTableFrame::IsBorderCollapse() const
{
return (bool)mBits.mIsBorderCollapse;
}
inline void nsTableFrame::SetBorderCollapse(bool aValue)
{
mBits.mIsBorderCollapse = aValue;
}
inline bool nsTableFrame::NeedToCalcBCBorders() const
{
return (bool)mBits.mNeedToCalcBCBorders;
}
inline void nsTableFrame::SetNeedToCalcBCBorders(bool aValue)
{
mBits.mNeedToCalcBCBorders = (unsigned)aValue;
}
inline nscoord
nsTableFrame::GetContinuousLeftBCBorderWidth() const
{
int32_t aPixelsToTwips = nsPresContext::AppUnitsPerCSSPixel();
return BC_BORDER_RIGHT_HALF_COORD(aPixelsToTwips, mBits.mLeftContBCBorder);
}
inline void nsTableFrame::SetContinuousLeftBCBorderWidth(nscoord aValue)
{
mBits.mLeftContBCBorder = (unsigned) aValue;
}
class nsTableIterator
{
public:
explicit nsTableIterator(nsIFrame& aSource);
explicit nsTableIterator(nsFrameList& aSource);
nsIFrame* First();
nsIFrame* Next();
bool IsLeftToRight();
int32_t Count();
protected:
void Init(nsIFrame* aFirstChild);
bool mLeftToRight;
nsIFrame* mFirstListChild;
nsIFrame* mFirstChild;
nsIFrame* mCurrentChild;
int32_t mCount;
};
#define ABORT0() \
{NS_ASSERTION(false, "CellIterator program error"); \
return;}
#define ABORT1(aReturn) \
{NS_ASSERTION(false, "CellIterator program error"); \
return aReturn;}
#endif
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