mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
a187fb3edb
This moves restyling management out of nsCSSFrameConstructor (thus reducing its size), and keeps the restyling code closer together. This is the first of two big chunks of code moved in this patch series. A later patch in this series will move related code from nsFrameManager into the same destination file.
871 lines
29 KiB
C++
871 lines
29 KiB
C++
/* -*- 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/. */
|
|
|
|
#include "nsCOMPtr.h"
|
|
#include "nsFrame.h"
|
|
#include "nsBlockFrame.h"
|
|
#include "nsPresContext.h"
|
|
#include "nsStyleContext.h"
|
|
#include "nsStyleConsts.h"
|
|
#include "nsTableRowFrame.h"
|
|
#include "nsINameSpaceManager.h"
|
|
#include "nsRenderingContext.h"
|
|
|
|
#include "nsTArray.h"
|
|
#include "nsCSSFrameConstructor.h"
|
|
#include "nsTableOuterFrame.h"
|
|
#include "nsTableFrame.h"
|
|
#include "nsTableCellFrame.h"
|
|
#include "celldata.h"
|
|
|
|
#include "nsMathMLmtableFrame.h"
|
|
#include <algorithm>
|
|
|
|
using namespace mozilla;
|
|
|
|
//
|
|
// <mtable> -- table or matrix - implementation
|
|
//
|
|
|
|
// helper function to perform an in-place split of a space-delimited string,
|
|
// and return an array of pointers for the beginning of each segment, i.e.,
|
|
// aOffset[0] is the first string, aOffset[1] is the second string, etc.
|
|
// Used to parse attributes like columnalign='left right', rowalign='top bottom'
|
|
static void
|
|
SplitString(nsString& aString, // [IN/OUT]
|
|
nsTArray<PRUnichar*>& aOffset) // [OUT]
|
|
{
|
|
static const PRUnichar kNullCh = PRUnichar('\0');
|
|
|
|
aString.Append(kNullCh); // put an extra null at the end
|
|
|
|
PRUnichar* start = aString.BeginWriting();
|
|
PRUnichar* end = start;
|
|
|
|
while (kNullCh != *start) {
|
|
while ((kNullCh != *start) && nsCRT::IsAsciiSpace(*start)) { // skip leading space
|
|
start++;
|
|
}
|
|
end = start;
|
|
|
|
while ((kNullCh != *end) && (false == nsCRT::IsAsciiSpace(*end))) { // look for space or end
|
|
end++;
|
|
}
|
|
*end = kNullCh; // end string here
|
|
|
|
if (start < end) {
|
|
aOffset.AppendElement(start); // record the beginning of this segment
|
|
}
|
|
|
|
start = ++end;
|
|
}
|
|
}
|
|
|
|
struct nsValueList
|
|
{
|
|
nsString mData;
|
|
nsTArray<PRUnichar*> mArray;
|
|
|
|
nsValueList(nsString& aData) {
|
|
mData.Assign(aData);
|
|
SplitString(mData, mArray);
|
|
}
|
|
};
|
|
|
|
// Each rowalign='top bottom' or columnalign='left right center' (from
|
|
// <mtable> or <mtr>) is split once (lazily) into a nsValueList which is
|
|
// stored in the property table. Row/Cell frames query the property table
|
|
// to see what values apply to them.
|
|
|
|
// XXX See bug 69409 - MathML attributes are not mapped to style.
|
|
|
|
static void
|
|
DestroyValueList(void* aPropertyValue)
|
|
{
|
|
delete static_cast<nsValueList*>(aPropertyValue);
|
|
}
|
|
|
|
NS_DECLARE_FRAME_PROPERTY(RowAlignProperty, DestroyValueList)
|
|
NS_DECLARE_FRAME_PROPERTY(RowLinesProperty, DestroyValueList)
|
|
NS_DECLARE_FRAME_PROPERTY(ColumnAlignProperty, DestroyValueList)
|
|
NS_DECLARE_FRAME_PROPERTY(ColumnLinesProperty, DestroyValueList)
|
|
|
|
static const FramePropertyDescriptor*
|
|
AttributeToProperty(nsIAtom* aAttribute)
|
|
{
|
|
if (aAttribute == nsGkAtoms::rowalign_)
|
|
return RowAlignProperty();
|
|
if (aAttribute == nsGkAtoms::rowlines_)
|
|
return RowLinesProperty();
|
|
if (aAttribute == nsGkAtoms::columnalign_)
|
|
return ColumnAlignProperty();
|
|
NS_ASSERTION(aAttribute == nsGkAtoms::columnlines_, "Invalid attribute");
|
|
return ColumnLinesProperty();
|
|
}
|
|
|
|
static PRUnichar*
|
|
GetValueAt(nsIFrame* aTableOrRowFrame,
|
|
const FramePropertyDescriptor* aProperty,
|
|
nsIAtom* aAttribute,
|
|
int32_t aRowOrColIndex)
|
|
{
|
|
FrameProperties props = aTableOrRowFrame->Properties();
|
|
nsValueList* valueList = static_cast<nsValueList*>(props.Get(aProperty));
|
|
if (!valueList) {
|
|
// The property isn't there yet, so set it
|
|
nsAutoString values;
|
|
aTableOrRowFrame->GetContent()->GetAttr(kNameSpaceID_None, aAttribute, values);
|
|
if (!values.IsEmpty())
|
|
valueList = new nsValueList(values);
|
|
if (!valueList || !valueList->mArray.Length()) {
|
|
delete valueList; // ok either way, delete is null safe
|
|
return nullptr;
|
|
}
|
|
props.Set(aProperty, valueList);
|
|
}
|
|
int32_t count = valueList->mArray.Length();
|
|
return (aRowOrColIndex < count)
|
|
? valueList->mArray[aRowOrColIndex]
|
|
: valueList->mArray[count-1];
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
static bool
|
|
IsTable(uint8_t aDisplay)
|
|
{
|
|
if ((aDisplay == NS_STYLE_DISPLAY_TABLE) ||
|
|
(aDisplay == NS_STYLE_DISPLAY_INLINE_TABLE))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
#define DEBUG_VERIFY_THAT_FRAME_IS(_frame, _expected) \
|
|
NS_ASSERTION(NS_STYLE_DISPLAY_##_expected == _frame->StyleDisplay()->mDisplay, "internal error");
|
|
#define DEBUG_VERIFY_THAT_FRAME_IS_TABLE(_frame) \
|
|
NS_ASSERTION(IsTable(_frame->StyleDisplay()->mDisplay), "internal error");
|
|
#else
|
|
#define DEBUG_VERIFY_THAT_FRAME_IS(_frame, _expected)
|
|
#define DEBUG_VERIFY_THAT_FRAME_IS_TABLE(_frame)
|
|
#endif
|
|
|
|
// map attributes that depend on the index of the row:
|
|
// rowalign, rowlines, XXX need rowspacing too
|
|
static void
|
|
MapRowAttributesIntoCSS(nsIFrame* aTableFrame,
|
|
nsIFrame* aRowFrame)
|
|
{
|
|
DEBUG_VERIFY_THAT_FRAME_IS_TABLE(aTableFrame);
|
|
DEBUG_VERIFY_THAT_FRAME_IS(aRowFrame, TABLE_ROW);
|
|
int32_t rowIndex = ((nsTableRowFrame*)aRowFrame)->GetRowIndex();
|
|
nsIContent* rowContent = aRowFrame->GetContent();
|
|
PRUnichar* attr;
|
|
|
|
// see if the rowalign attribute is not already set
|
|
if (!rowContent->HasAttr(kNameSpaceID_None, nsGkAtoms::rowalign_) &&
|
|
!rowContent->HasAttr(kNameSpaceID_None, nsGkAtoms::_moz_math_rowalign_)) {
|
|
// see if the rowalign attribute was specified on the table
|
|
attr = GetValueAt(aTableFrame, RowAlignProperty(),
|
|
nsGkAtoms::rowalign_, rowIndex);
|
|
if (attr) {
|
|
// set our special _moz attribute on the row without notifying a reflow
|
|
rowContent->SetAttr(kNameSpaceID_None, nsGkAtoms::_moz_math_rowalign_,
|
|
nsDependentString(attr), false);
|
|
}
|
|
}
|
|
|
|
// if we are not on the first row, see if |rowlines| was specified on the table.
|
|
// Note that we pass 'rowIndex-1' because the CSS rule in mathml.css is associated
|
|
// to 'border-top', and it is as if we draw the line on behalf of the previous cell.
|
|
// This way of doing so allows us to handle selective lines, [row]\hline[row][row]',
|
|
// and cases of spanning cells without further complications.
|
|
if (rowIndex > 0 &&
|
|
!rowContent->HasAttr(kNameSpaceID_None, nsGkAtoms::_moz_math_rowline_)) {
|
|
attr = GetValueAt(aTableFrame, RowLinesProperty(),
|
|
nsGkAtoms::rowlines_, rowIndex-1);
|
|
if (attr) {
|
|
// set our special _moz attribute on the row without notifying a reflow
|
|
rowContent->SetAttr(kNameSpaceID_None, nsGkAtoms::_moz_math_rowline_,
|
|
nsDependentString(attr), false);
|
|
}
|
|
}
|
|
}
|
|
|
|
// map attributes that depend on the index of the column:
|
|
// columnalign, columnlines, XXX need columnwidth and columnspacing too
|
|
static void
|
|
MapColAttributesIntoCSS(nsIFrame* aTableFrame,
|
|
nsIFrame* aRowFrame,
|
|
nsIFrame* aCellFrame)
|
|
{
|
|
DEBUG_VERIFY_THAT_FRAME_IS_TABLE(aTableFrame);
|
|
DEBUG_VERIFY_THAT_FRAME_IS(aRowFrame, TABLE_ROW);
|
|
DEBUG_VERIFY_THAT_FRAME_IS(aCellFrame, TABLE_CELL);
|
|
int32_t rowIndex, colIndex;
|
|
((nsTableCellFrame*)aCellFrame)->GetCellIndexes(rowIndex, colIndex);
|
|
nsIContent* cellContent = aCellFrame->GetContent();
|
|
PRUnichar* attr;
|
|
|
|
// see if the columnalign attribute is not already set
|
|
if (!cellContent->HasAttr(kNameSpaceID_None, nsGkAtoms::columnalign_) &&
|
|
!cellContent->HasAttr(kNameSpaceID_None,
|
|
nsGkAtoms::_moz_math_columnalign_)) {
|
|
// see if the columnalign attribute was specified on the row
|
|
attr = GetValueAt(aRowFrame, ColumnAlignProperty(),
|
|
nsGkAtoms::columnalign_, colIndex);
|
|
if (!attr) {
|
|
// see if the columnalign attribute was specified on the table
|
|
attr = GetValueAt(aTableFrame, ColumnAlignProperty(),
|
|
nsGkAtoms::columnalign_, colIndex);
|
|
}
|
|
if (attr) {
|
|
// set our special _moz attribute without notifying a reflow
|
|
cellContent->SetAttr(kNameSpaceID_None, nsGkAtoms::_moz_math_columnalign_,
|
|
nsDependentString(attr), false);
|
|
}
|
|
}
|
|
|
|
// if we are not on the first column, see if |columnlines| was specified on
|
|
// the table. Note that we pass 'colIndex-1' because the CSS rule in mathml.css
|
|
// is associated to 'border-left', and it is as if we draw the line on behalf
|
|
// of the previous cell. This way of doing so allows us to handle selective lines,
|
|
// e.g., 'r|cl', and cases of spanning cells without further complications.
|
|
if (colIndex > 0 &&
|
|
!cellContent->HasAttr(kNameSpaceID_None,
|
|
nsGkAtoms::_moz_math_columnline_)) {
|
|
attr = GetValueAt(aTableFrame, ColumnLinesProperty(),
|
|
nsGkAtoms::columnlines_, colIndex-1);
|
|
if (attr) {
|
|
// set our special _moz attribute without notifying a reflow
|
|
cellContent->SetAttr(kNameSpaceID_None, nsGkAtoms::_moz_math_columnline_,
|
|
nsDependentString(attr), false);
|
|
}
|
|
}
|
|
}
|
|
|
|
// map all attribues within a table -- requires the indices of rows and cells.
|
|
// so it can only happen after they are made ready by the table base class.
|
|
static void
|
|
MapAllAttributesIntoCSS(nsIFrame* aTableFrame)
|
|
{
|
|
// mtable is simple and only has one (pseudo) row-group
|
|
nsIFrame* rgFrame = aTableFrame->GetFirstPrincipalChild();
|
|
if (!rgFrame || rgFrame->GetType() != nsGkAtoms::tableRowGroupFrame)
|
|
return;
|
|
|
|
nsIFrame* rowFrame = rgFrame->GetFirstPrincipalChild();
|
|
for ( ; rowFrame; rowFrame = rowFrame->GetNextSibling()) {
|
|
DEBUG_VERIFY_THAT_FRAME_IS(rowFrame, TABLE_ROW);
|
|
if (rowFrame->GetType() == nsGkAtoms::tableRowFrame) {
|
|
MapRowAttributesIntoCSS(aTableFrame, rowFrame);
|
|
nsIFrame* cellFrame = rowFrame->GetFirstPrincipalChild();
|
|
for ( ; cellFrame; cellFrame = cellFrame->GetNextSibling()) {
|
|
DEBUG_VERIFY_THAT_FRAME_IS(cellFrame, TABLE_CELL);
|
|
if (IS_TABLE_CELL(cellFrame->GetType())) {
|
|
MapColAttributesIntoCSS(aTableFrame, rowFrame, cellFrame);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// the align attribute of mtable can have a row number which indicates
|
|
// from where to anchor the table, e.g., top 5 means anchor the table at
|
|
// the top of the 5th row, axis -1 means anchor the table on the axis of
|
|
// the last row
|
|
|
|
// The REC says that the syntax is
|
|
// '\s*(top|bottom|center|baseline|axis)(\s+-?[0-9]+)?\s*'
|
|
// the parsing could have been simpler with that syntax
|
|
// but for backward compatibility we make optional
|
|
// the whitespaces between the alignment name and the row number
|
|
|
|
enum eAlign {
|
|
eAlign_top,
|
|
eAlign_bottom,
|
|
eAlign_center,
|
|
eAlign_baseline,
|
|
eAlign_axis
|
|
};
|
|
|
|
static void
|
|
ParseAlignAttribute(nsString& aValue, eAlign& aAlign, int32_t& aRowIndex)
|
|
{
|
|
// by default, the table is centered about the axis
|
|
aRowIndex = 0;
|
|
aAlign = eAlign_axis;
|
|
int32_t len = 0;
|
|
|
|
// we only have to remove the leading spaces because
|
|
// ToInteger ignores the whitespaces around the number
|
|
aValue.CompressWhitespace(true, false);
|
|
|
|
if (0 == aValue.Find("top")) {
|
|
len = 3; // 3 is the length of 'top'
|
|
aAlign = eAlign_top;
|
|
}
|
|
else if (0 == aValue.Find("bottom")) {
|
|
len = 6; // 6 is the length of 'bottom'
|
|
aAlign = eAlign_bottom;
|
|
}
|
|
else if (0 == aValue.Find("center")) {
|
|
len = 6; // 6 is the length of 'center'
|
|
aAlign = eAlign_center;
|
|
}
|
|
else if (0 == aValue.Find("baseline")) {
|
|
len = 8; // 8 is the length of 'baseline'
|
|
aAlign = eAlign_baseline;
|
|
}
|
|
else if (0 == aValue.Find("axis")) {
|
|
len = 4; // 4 is the length of 'axis'
|
|
aAlign = eAlign_axis;
|
|
}
|
|
if (len) {
|
|
nsresult error;
|
|
aValue.Cut(0, len); // aValue is not a const here
|
|
aRowIndex = aValue.ToInteger(&error);
|
|
if (NS_FAILED(error))
|
|
aRowIndex = 0;
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_rbs_off
|
|
// call ListMathMLTree(mParent) to get the big picture
|
|
static void
|
|
ListMathMLTree(nsIFrame* atLeast)
|
|
{
|
|
// climb up to <math> or <body> if <math> isn't there
|
|
nsIFrame* f = atLeast;
|
|
for ( ; f; f = f->GetParent()) {
|
|
nsIContent* c = f->GetContent();
|
|
if (!c || c->Tag() == nsGkAtoms::math || c->Tag() == nsGkAtoms::body)
|
|
break;
|
|
}
|
|
if (!f) f = atLeast;
|
|
f->List(stdout, 0);
|
|
}
|
|
#endif
|
|
|
|
// --------
|
|
// implementation of nsMathMLmtableOuterFrame
|
|
|
|
NS_QUERYFRAME_HEAD(nsMathMLmtableOuterFrame)
|
|
NS_QUERYFRAME_ENTRY(nsIMathMLFrame)
|
|
NS_QUERYFRAME_TAIL_INHERITING(nsTableOuterFrame)
|
|
|
|
nsIFrame*
|
|
NS_NewMathMLmtableOuterFrame (nsIPresShell* aPresShell, nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsMathMLmtableOuterFrame(aContext);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmtableOuterFrame)
|
|
|
|
nsMathMLmtableOuterFrame::~nsMathMLmtableOuterFrame()
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmtableOuterFrame::InheritAutomaticData(nsIFrame* aParent)
|
|
{
|
|
// XXX the REC says that by default, displaystyle=false in <mtable>
|
|
|
|
// let the base class inherit the displaystyle from our parent
|
|
nsMathMLFrame::InheritAutomaticData(aParent);
|
|
|
|
// see if the displaystyle attribute is there and let it override what we inherited
|
|
if (mContent->Tag() == nsGkAtoms::mtable_)
|
|
nsMathMLFrame::FindAttrDisplaystyle(mContent, mPresentationData);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// displaystyle is special in mtable...
|
|
// Since UpdatePresentation() and UpdatePresentationDataFromChildAt() can be called
|
|
// by a parent, ensure that the displaystyle attribute of mtable takes precedence
|
|
NS_IMETHODIMP
|
|
nsMathMLmtableOuterFrame::UpdatePresentationData(uint32_t aFlagsValues,
|
|
uint32_t aWhichFlags)
|
|
{
|
|
if (NS_MATHML_HAS_EXPLICIT_DISPLAYSTYLE(mPresentationData.flags)) {
|
|
// our current state takes precedence, disallow updating the displastyle
|
|
aWhichFlags &= ~NS_MATHML_DISPLAYSTYLE;
|
|
aFlagsValues &= ~NS_MATHML_DISPLAYSTYLE;
|
|
}
|
|
|
|
return nsMathMLFrame::UpdatePresentationData(aFlagsValues, aWhichFlags);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmtableOuterFrame::UpdatePresentationDataFromChildAt(int32_t aFirstIndex,
|
|
int32_t aLastIndex,
|
|
uint32_t aFlagsValues,
|
|
uint32_t aWhichFlags)
|
|
{
|
|
if (NS_MATHML_HAS_EXPLICIT_DISPLAYSTYLE(mPresentationData.flags)) {
|
|
// our current state takes precedence, disallow updating the displastyle
|
|
aWhichFlags &= ~NS_MATHML_DISPLAYSTYLE;
|
|
aFlagsValues &= ~NS_MATHML_DISPLAYSTYLE;
|
|
}
|
|
|
|
nsMathMLContainerFrame::PropagatePresentationDataFromChildAt(this,
|
|
aFirstIndex, aLastIndex, aFlagsValues, aWhichFlags);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmtableOuterFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
int32_t aModType)
|
|
{
|
|
// Attributes specific to <mtable>:
|
|
// frame : in mathml.css
|
|
// framespacing : not yet supported
|
|
// groupalign : not yet supported
|
|
// equalrows : not yet supported
|
|
// equalcolumns : not yet supported
|
|
// displaystyle : here
|
|
// align : in reflow
|
|
// rowalign : here
|
|
// rowlines : here
|
|
// rowspacing : not yet supported
|
|
// columnalign : here
|
|
// columnlines : here
|
|
// columnspacing : not yet supported
|
|
|
|
// mtable is simple and only has one (pseudo) row-group inside our inner-table
|
|
nsIFrame* tableFrame = mFrames.FirstChild();
|
|
NS_ASSERTION(tableFrame && tableFrame->GetType() == nsGkAtoms::tableFrame,
|
|
"should always have an inner table frame");
|
|
nsIFrame* rgFrame = tableFrame->GetFirstPrincipalChild();
|
|
if (!rgFrame || rgFrame->GetType() != nsGkAtoms::tableRowGroupFrame)
|
|
return NS_OK;
|
|
|
|
// align - just need to issue a dirty (resize) reflow command
|
|
if (aAttribute == nsGkAtoms::align) {
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(this, nsIPresShell::eResize, NS_FRAME_IS_DIRTY);
|
|
return NS_OK;
|
|
}
|
|
|
|
// displaystyle - may seem innocuous, but it is actually very harsh --
|
|
// like changing an unit. Blow away and recompute all our automatic
|
|
// presentational data, and issue a style-changed reflow request
|
|
if (aAttribute == nsGkAtoms::displaystyle_) {
|
|
nsMathMLContainerFrame::RebuildAutomaticDataForChildren(mParent);
|
|
// Need to reflow the parent, not us, because this can actually
|
|
// affect siblings.
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(mParent, nsIPresShell::eStyleChange, NS_FRAME_IS_DIRTY);
|
|
return NS_OK;
|
|
}
|
|
|
|
// ...and the other attributes affect rows or columns in one way or another
|
|
nsIAtom* MOZrowAtom = nullptr;
|
|
nsIAtom* MOZcolAtom = nullptr;
|
|
if (aAttribute == nsGkAtoms::rowalign_)
|
|
MOZrowAtom = nsGkAtoms::_moz_math_rowalign_;
|
|
else if (aAttribute == nsGkAtoms::rowlines_)
|
|
MOZrowAtom = nsGkAtoms::_moz_math_rowline_;
|
|
else if (aAttribute == nsGkAtoms::columnalign_)
|
|
MOZcolAtom = nsGkAtoms::_moz_math_columnalign_;
|
|
else if (aAttribute == nsGkAtoms::columnlines_)
|
|
MOZcolAtom = nsGkAtoms::_moz_math_columnline_;
|
|
|
|
if (!MOZrowAtom && !MOZcolAtom)
|
|
return NS_OK;
|
|
|
|
nsPresContext* presContext = tableFrame->PresContext();
|
|
// clear any cached nsValueList for this table
|
|
presContext->PropertyTable()->
|
|
Delete(tableFrame, AttributeToProperty(aAttribute));
|
|
|
|
// unset any _moz attribute that we may have set earlier, and re-sync
|
|
nsIFrame* rowFrame = rgFrame->GetFirstPrincipalChild();
|
|
for ( ; rowFrame; rowFrame = rowFrame->GetNextSibling()) {
|
|
if (rowFrame->GetType() == nsGkAtoms::tableRowFrame) {
|
|
if (MOZrowAtom) { // let rows do the work
|
|
rowFrame->GetContent()->UnsetAttr(kNameSpaceID_None, MOZrowAtom, false);
|
|
MapRowAttributesIntoCSS(tableFrame, rowFrame);
|
|
} else { // let cells do the work
|
|
nsIFrame* cellFrame = rowFrame->GetFirstPrincipalChild();
|
|
for ( ; cellFrame; cellFrame = cellFrame->GetNextSibling()) {
|
|
if (IS_TABLE_CELL(cellFrame->GetType())) {
|
|
cellFrame->GetContent()->UnsetAttr(kNameSpaceID_None, MOZcolAtom, false);
|
|
MapColAttributesIntoCSS(tableFrame, rowFrame, cellFrame);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Explicitly request a re-resolve and reflow in our subtree to pick up any changes
|
|
presContext->RestyleManager()->
|
|
PostRestyleEvent(mContent->AsElement(), eRestyle_Subtree,
|
|
nsChangeHint_AllReflowHints);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIFrame*
|
|
nsMathMLmtableOuterFrame::GetRowFrameAt(nsPresContext* aPresContext,
|
|
int32_t aRowIndex)
|
|
{
|
|
int32_t rowCount = GetRowCount();
|
|
|
|
// Negative indices mean to find upwards from the end.
|
|
if (aRowIndex < 0) {
|
|
aRowIndex = rowCount + aRowIndex;
|
|
} else {
|
|
// aRowIndex is 1-based, so convert it to a 0-based index
|
|
--aRowIndex;
|
|
}
|
|
|
|
// if our inner table says that the index is valid, find the row now
|
|
if (0 <= aRowIndex && aRowIndex <= rowCount) {
|
|
nsIFrame* tableFrame = mFrames.FirstChild();
|
|
NS_ASSERTION(tableFrame && tableFrame->GetType() == nsGkAtoms::tableFrame,
|
|
"should always have an inner table frame");
|
|
nsIFrame* rgFrame = tableFrame->GetFirstPrincipalChild();
|
|
if (!rgFrame || rgFrame->GetType() != nsGkAtoms::tableRowGroupFrame)
|
|
return nullptr;
|
|
nsTableIterator rowIter(*rgFrame);
|
|
nsIFrame* rowFrame = rowIter.First();
|
|
for ( ; rowFrame; rowFrame = rowIter.Next()) {
|
|
if (aRowIndex == 0) {
|
|
DEBUG_VERIFY_THAT_FRAME_IS(rowFrame, TABLE_ROW);
|
|
if (rowFrame->GetType() != nsGkAtoms::tableRowFrame)
|
|
return nullptr;
|
|
|
|
return rowFrame;
|
|
}
|
|
--aRowIndex;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmtableOuterFrame::Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
nsresult rv;
|
|
nsAutoString value;
|
|
// we want to return a table that is anchored according to the align attribute
|
|
|
|
rv = nsTableOuterFrame::Reflow(aPresContext, aDesiredSize, aReflowState,
|
|
aStatus);
|
|
NS_ASSERTION(aDesiredSize.height >= 0, "illegal height for mtable");
|
|
NS_ASSERTION(aDesiredSize.width >= 0, "illegal width for mtable");
|
|
|
|
// see if the user has set the align attribute on the <mtable>
|
|
// XXX should we also check <mstyle> ?
|
|
int32_t rowIndex = 0;
|
|
eAlign tableAlign = eAlign_axis;
|
|
GetAttribute(mContent, nullptr, nsGkAtoms::align, value);
|
|
if (!value.IsEmpty()) {
|
|
ParseAlignAttribute(value, tableAlign, rowIndex);
|
|
}
|
|
|
|
// adjustments if there is a specified row from where to anchor the table
|
|
// (conceptually: when there is no row of reference, picture the table as if
|
|
// it is wrapped in a single big fictional row at dy = 0, this way of
|
|
// doing so allows us to have a single code path for all cases).
|
|
nscoord dy = 0;
|
|
nscoord height = aDesiredSize.height;
|
|
nsIFrame* rowFrame = nullptr;
|
|
if (rowIndex) {
|
|
rowFrame = GetRowFrameAt(aPresContext, rowIndex);
|
|
if (rowFrame) {
|
|
// translate the coordinates to be relative to us
|
|
nsIFrame* frame = rowFrame;
|
|
height = frame->GetSize().height;
|
|
do {
|
|
dy += frame->GetPosition().y;
|
|
frame = frame->GetParent();
|
|
} while (frame != this);
|
|
}
|
|
}
|
|
switch (tableAlign) {
|
|
case eAlign_top:
|
|
aDesiredSize.ascent = dy;
|
|
break;
|
|
case eAlign_bottom:
|
|
aDesiredSize.ascent = dy + height;
|
|
break;
|
|
case eAlign_center:
|
|
aDesiredSize.ascent = dy + height/2;
|
|
break;
|
|
case eAlign_baseline:
|
|
if (rowFrame) {
|
|
// anchor the table on the baseline of the row of reference
|
|
nscoord rowAscent = ((nsTableRowFrame*)rowFrame)->GetMaxCellAscent();
|
|
if (rowAscent) { // the row has at least one cell with 'vertical-align: baseline'
|
|
aDesiredSize.ascent = dy + rowAscent;
|
|
break;
|
|
}
|
|
}
|
|
// in other situations, fallback to center
|
|
aDesiredSize.ascent = dy + height/2;
|
|
break;
|
|
case eAlign_axis:
|
|
default: {
|
|
// XXX should instead use style data from the row of reference here ?
|
|
nsRefPtr<nsFontMetrics> fm;
|
|
nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fm));
|
|
aReflowState.rendContext->SetFont(fm);
|
|
nscoord axisHeight;
|
|
GetAxisHeight(*aReflowState.rendContext,
|
|
aReflowState.rendContext->FontMetrics(),
|
|
axisHeight);
|
|
if (rowFrame) {
|
|
// anchor the table on the axis of the row of reference
|
|
// XXX fallback to baseline because it is a hard problem
|
|
// XXX need to fetch the axis of the row; would need rowalign=axis to work better
|
|
nscoord rowAscent = ((nsTableRowFrame*)rowFrame)->GetMaxCellAscent();
|
|
if (rowAscent) { // the row has at least one cell with 'vertical-align: baseline'
|
|
aDesiredSize.ascent = dy + rowAscent;
|
|
break;
|
|
}
|
|
}
|
|
// in other situations, fallback to using half of the height
|
|
aDesiredSize.ascent = dy + height/2 + axisHeight;
|
|
}
|
|
}
|
|
|
|
mReference.x = 0;
|
|
mReference.y = aDesiredSize.ascent;
|
|
|
|
// just make-up a bounding metrics
|
|
mBoundingMetrics = nsBoundingMetrics();
|
|
mBoundingMetrics.ascent = aDesiredSize.ascent;
|
|
mBoundingMetrics.descent = aDesiredSize.height - aDesiredSize.ascent;
|
|
mBoundingMetrics.width = aDesiredSize.width;
|
|
mBoundingMetrics.leftBearing = 0;
|
|
mBoundingMetrics.rightBearing = aDesiredSize.width;
|
|
|
|
aDesiredSize.mBoundingMetrics = mBoundingMetrics;
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsIFrame*
|
|
NS_NewMathMLmtableFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsMathMLmtableFrame(aContext);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmtableFrame)
|
|
|
|
nsMathMLmtableFrame::~nsMathMLmtableFrame()
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmtableFrame::SetInitialChildList(ChildListID aListID,
|
|
nsFrameList& aChildList)
|
|
{
|
|
nsresult rv = nsTableFrame::SetInitialChildList(aListID, aChildList);
|
|
if (NS_FAILED(rv)) return rv;
|
|
MapAllAttributesIntoCSS(this);
|
|
return rv;
|
|
}
|
|
|
|
void
|
|
nsMathMLmtableFrame::RestyleTable()
|
|
{
|
|
// re-sync MathML specific style data that may have changed
|
|
MapAllAttributesIntoCSS(this);
|
|
|
|
// Explicitly request a re-resolve and reflow in our subtree to pick up any changes
|
|
PresContext()->RestyleManager()->
|
|
PostRestyleEvent(mContent->AsElement(), eRestyle_Subtree,
|
|
nsChangeHint_AllReflowHints);
|
|
}
|
|
|
|
// --------
|
|
// implementation of nsMathMLmtrFrame
|
|
|
|
nsIFrame*
|
|
NS_NewMathMLmtrFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsMathMLmtrFrame(aContext);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmtrFrame)
|
|
|
|
nsMathMLmtrFrame::~nsMathMLmtrFrame()
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmtrFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
int32_t aModType)
|
|
{
|
|
// Attributes specific to <mtr>:
|
|
// groupalign : Not yet supported.
|
|
// rowalign : Fully specified in mathml.css, and so HasAttributeDependentStyle() will
|
|
// pick it up and RestyleManager will issue a PostRestyleEvent().
|
|
// columnalign : Need an explicit re-style call.
|
|
|
|
if (aAttribute == nsGkAtoms::rowalign_) {
|
|
// unset any _moz attribute that we may have set earlier, and re-sync
|
|
mContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::_moz_math_rowalign_,
|
|
false);
|
|
MapRowAttributesIntoCSS(nsTableFrame::GetTableFrame(this), this);
|
|
// That's all - see comment above.
|
|
return NS_OK;
|
|
}
|
|
|
|
if (aAttribute != nsGkAtoms::columnalign_)
|
|
return NS_OK;
|
|
|
|
nsPresContext* presContext = PresContext();
|
|
// Clear any cached columnalign's nsValueList for this row
|
|
presContext->PropertyTable()->Delete(this, AttributeToProperty(aAttribute));
|
|
|
|
// Clear any internal _moz attribute that we may have set earlier
|
|
// in our cells and re-sync their columnalign attribute
|
|
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
|
|
nsIFrame* cellFrame = GetFirstPrincipalChild();
|
|
for ( ; cellFrame; cellFrame = cellFrame->GetNextSibling()) {
|
|
if (IS_TABLE_CELL(cellFrame->GetType())) {
|
|
cellFrame->GetContent()->
|
|
UnsetAttr(kNameSpaceID_None, nsGkAtoms::_moz_math_columnalign_,
|
|
false);
|
|
MapColAttributesIntoCSS(tableFrame, this, cellFrame);
|
|
}
|
|
}
|
|
|
|
// Explicitly request a re-resolve and reflow in our subtree to pick up any changes
|
|
presContext->RestyleManager()->
|
|
PostRestyleEvent(mContent->AsElement(), eRestyle_Subtree,
|
|
nsChangeHint_AllReflowHints);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// --------
|
|
// implementation of nsMathMLmtdFrame
|
|
|
|
nsIFrame*
|
|
NS_NewMathMLmtdFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsMathMLmtdFrame(aContext);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmtdFrame)
|
|
|
|
nsMathMLmtdFrame::~nsMathMLmtdFrame()
|
|
{
|
|
}
|
|
|
|
int32_t
|
|
nsMathMLmtdFrame::GetRowSpan()
|
|
{
|
|
int32_t rowspan = 1;
|
|
|
|
// Don't look at the content's rowspan if we're not an mtd or a pseudo cell.
|
|
if ((mContent->Tag() == nsGkAtoms::mtd_) && !StyleContext()->GetPseudo()) {
|
|
nsAutoString value;
|
|
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::rowspan, value);
|
|
if (!value.IsEmpty()) {
|
|
nsresult error;
|
|
rowspan = value.ToInteger(&error);
|
|
if (NS_FAILED(error) || rowspan < 0)
|
|
rowspan = 1;
|
|
rowspan = std::min(rowspan, MAX_ROWSPAN);
|
|
}
|
|
}
|
|
return rowspan;
|
|
}
|
|
|
|
int32_t
|
|
nsMathMLmtdFrame::GetColSpan()
|
|
{
|
|
int32_t colspan = 1;
|
|
|
|
// Don't look at the content's colspan if we're not an mtd or a pseudo cell.
|
|
if ((mContent->Tag() == nsGkAtoms::mtd_) && !StyleContext()->GetPseudo()) {
|
|
nsAutoString value;
|
|
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::columnspan_, value);
|
|
if (!value.IsEmpty()) {
|
|
nsresult error;
|
|
colspan = value.ToInteger(&error);
|
|
if (NS_FAILED(error) || colspan < 0 || colspan > MAX_COLSPAN)
|
|
colspan = 1;
|
|
}
|
|
}
|
|
return colspan;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmtdFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
int32_t aModType)
|
|
{
|
|
// Attributes specific to <mtd>:
|
|
// groupalign : Not yet supported
|
|
// rowalign : in mathml.css
|
|
// columnalign : here
|
|
// rowspan : here
|
|
// columnspan : here
|
|
|
|
if (aAttribute == nsGkAtoms::columnalign_) {
|
|
// unset any _moz attribute that we may have set earlier, and re-sync
|
|
mContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::_moz_math_columnalign_,
|
|
false);
|
|
MapColAttributesIntoCSS(nsTableFrame::GetTableFrame(this), mParent, this);
|
|
return NS_OK;
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::rowspan ||
|
|
aAttribute == nsGkAtoms::columnspan_) {
|
|
// use the naming expected by the base class
|
|
if (aAttribute == nsGkAtoms::columnspan_)
|
|
aAttribute = nsGkAtoms::colspan;
|
|
return nsTableCellFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// --------
|
|
// implementation of nsMathMLmtdInnerFrame
|
|
|
|
NS_QUERYFRAME_HEAD(nsMathMLmtdInnerFrame)
|
|
NS_QUERYFRAME_ENTRY(nsIMathMLFrame)
|
|
NS_QUERYFRAME_TAIL_INHERITING(nsBlockFrame)
|
|
|
|
nsIFrame*
|
|
NS_NewMathMLmtdInnerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsMathMLmtdInnerFrame(aContext);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmtdInnerFrame)
|
|
|
|
nsMathMLmtdInnerFrame::~nsMathMLmtdInnerFrame()
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsMathMLmtdInnerFrame::Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
// Let the base class do the reflow
|
|
nsresult rv = nsBlockFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
|
|
|
|
// more about <maligngroup/> and <malignmark/> later
|
|
// ...
|
|
return rv;
|
|
}
|