forked from mirrors/gecko-dev
c6b2c5db61
Backed out changeset f17c7565707b (bug 1772006) Backed out changeset c725fe1f5882 (bug 1772006) Backed out changeset d19663161261 (bug 1772006) Backed out changeset b6611ab002d9 (bug 1772006) Backed out changeset 790f42b64af9 (bug 1772006) Backed out changeset 79a734b4e4d9 (bug 1772006) Backed out changeset 42730aae16ea (bug 1772006) Backed out changeset b2542aef3054 (bug 1772006) Backed out changeset 962bfea4a309 (bug 1772006)
1243 lines
44 KiB
C++
1243 lines
44 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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 "gfxContext.h"
|
|
#include "nsMathMLmtableFrame.h"
|
|
#include "nsPresContext.h"
|
|
#include "nsStyleConsts.h"
|
|
#include "nsNameSpaceManager.h"
|
|
#include "nsCSSRendering.h"
|
|
#include "mozilla/dom/MathMLElement.h"
|
|
|
|
#include "nsCRT.h"
|
|
#include "nsTArray.h"
|
|
#include "nsTableFrame.h"
|
|
#include "celldata.h"
|
|
|
|
#include "mozilla/PresShell.h"
|
|
#include "mozilla/RestyleManager.h"
|
|
#include <algorithm>
|
|
|
|
#include "nsIScriptError.h"
|
|
#include "nsContentUtils.h"
|
|
#include "nsLayoutUtils.h"
|
|
|
|
using namespace mozilla;
|
|
using namespace mozilla::image;
|
|
using mozilla::dom::Element;
|
|
|
|
//
|
|
// <mtable> -- table or matrix - implementation
|
|
//
|
|
|
|
static int8_t ParseStyleValue(nsAtom* aAttribute,
|
|
const nsAString& aAttributeValue) {
|
|
if (aAttribute == nsGkAtoms::rowalign_) {
|
|
if (aAttributeValue.EqualsLiteral("top")) {
|
|
return static_cast<int8_t>(StyleVerticalAlignKeyword::Top);
|
|
}
|
|
if (aAttributeValue.EqualsLiteral("bottom")) {
|
|
return static_cast<int8_t>(StyleVerticalAlignKeyword::Bottom);
|
|
}
|
|
if (aAttributeValue.EqualsLiteral("center")) {
|
|
return static_cast<int8_t>(StyleVerticalAlignKeyword::Middle);
|
|
}
|
|
return static_cast<int8_t>(StyleVerticalAlignKeyword::Baseline);
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::columnalign_) {
|
|
if (aAttributeValue.EqualsLiteral("left")) {
|
|
return int8_t(StyleTextAlign::Left);
|
|
}
|
|
if (aAttributeValue.EqualsLiteral("right")) {
|
|
return int8_t(StyleTextAlign::Right);
|
|
}
|
|
return int8_t(StyleTextAlign::Center);
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::rowlines_ ||
|
|
aAttribute == nsGkAtoms::columnlines_) {
|
|
if (aAttributeValue.EqualsLiteral("solid")) {
|
|
return static_cast<int8_t>(StyleBorderStyle::Solid);
|
|
}
|
|
if (aAttributeValue.EqualsLiteral("dashed")) {
|
|
return static_cast<int8_t>(StyleBorderStyle::Dashed);
|
|
}
|
|
return static_cast<int8_t>(StyleBorderStyle::None);
|
|
}
|
|
|
|
MOZ_CRASH("Unrecognized attribute.");
|
|
return -1;
|
|
}
|
|
|
|
static nsTArray<int8_t>* ExtractStyleValues(const nsAString& aString,
|
|
nsAtom* aAttribute,
|
|
bool aAllowMultiValues) {
|
|
nsTArray<int8_t>* styleArray = nullptr;
|
|
|
|
const char16_t* start = aString.BeginReading();
|
|
const char16_t* end = aString.EndReading();
|
|
|
|
int32_t startIndex = 0;
|
|
int32_t count = 0;
|
|
|
|
while (start < end) {
|
|
// Skip leading spaces.
|
|
while ((start < end) && nsCRT::IsAsciiSpace(*start)) {
|
|
start++;
|
|
startIndex++;
|
|
}
|
|
|
|
// Look for the end of the string, or another space.
|
|
while ((start < end) && !nsCRT::IsAsciiSpace(*start)) {
|
|
start++;
|
|
count++;
|
|
}
|
|
|
|
// Grab the value found and process it.
|
|
if (count > 0) {
|
|
if (!styleArray) styleArray = new nsTArray<int8_t>();
|
|
|
|
// We want to return a null array if an attribute gives multiple values,
|
|
// but multiple values aren't allowed.
|
|
if (styleArray->Length() > 1 && !aAllowMultiValues) {
|
|
delete styleArray;
|
|
return nullptr;
|
|
}
|
|
|
|
nsDependentSubstring valueString(aString, startIndex, count);
|
|
int8_t styleValue = ParseStyleValue(aAttribute, valueString);
|
|
styleArray->AppendElement(styleValue);
|
|
|
|
startIndex += count;
|
|
count = 0;
|
|
}
|
|
}
|
|
return styleArray;
|
|
}
|
|
|
|
static nsresult ReportParseError(nsIFrame* aFrame, const char16_t* aAttribute,
|
|
const char16_t* aValue) {
|
|
nsIContent* content = aFrame->GetContent();
|
|
|
|
AutoTArray<nsString, 3> params;
|
|
params.AppendElement(aValue);
|
|
params.AppendElement(aAttribute);
|
|
params.AppendElement(nsDependentAtomString(content->NodeInfo()->NameAtom()));
|
|
|
|
return nsContentUtils::ReportToConsole(
|
|
nsIScriptError::errorFlag, "Layout: MathML"_ns, content->OwnerDoc(),
|
|
nsContentUtils::eMATHML_PROPERTIES, "AttributeParsingError", params);
|
|
}
|
|
|
|
// Each rowalign='top bottom' or columnalign='left right center' (from
|
|
// <mtable> or <mtr>) is split once into an nsTArray<int8_t> which is
|
|
// stored in the property table. Row/Cell frames query the property table
|
|
// to see what values apply to them.
|
|
|
|
NS_DECLARE_FRAME_PROPERTY_DELETABLE(RowAlignProperty, nsTArray<int8_t>)
|
|
NS_DECLARE_FRAME_PROPERTY_DELETABLE(RowLinesProperty, nsTArray<int8_t>)
|
|
NS_DECLARE_FRAME_PROPERTY_DELETABLE(ColumnAlignProperty, nsTArray<int8_t>)
|
|
NS_DECLARE_FRAME_PROPERTY_DELETABLE(ColumnLinesProperty, nsTArray<int8_t>)
|
|
|
|
static const FramePropertyDescriptor<nsTArray<int8_t>>* AttributeToProperty(
|
|
nsAtom* 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();
|
|
}
|
|
|
|
/* This method looks for a property that applies to a cell, but it looks
|
|
* recursively because some cell properties can come from the cell, a row,
|
|
* a table, etc. This function searches through the hierarchy for a property
|
|
* and returns its value. The function stops searching after checking a <mtable>
|
|
* frame.
|
|
*/
|
|
static nsTArray<int8_t>* FindCellProperty(
|
|
const nsIFrame* aCellFrame,
|
|
const FramePropertyDescriptor<nsTArray<int8_t>>* aFrameProperty) {
|
|
const nsIFrame* currentFrame = aCellFrame;
|
|
nsTArray<int8_t>* propertyData = nullptr;
|
|
|
|
while (currentFrame) {
|
|
propertyData = currentFrame->GetProperty(aFrameProperty);
|
|
bool frameIsTable = (currentFrame->IsTableFrame());
|
|
|
|
if (propertyData || frameIsTable)
|
|
currentFrame = nullptr; // A null frame pointer exits the loop
|
|
else
|
|
currentFrame = currentFrame->GetParent(); // Go to the parent frame
|
|
}
|
|
|
|
return propertyData;
|
|
}
|
|
|
|
static void ApplyBorderToStyle(const nsMathMLmtdFrame* aFrame,
|
|
nsStyleBorder& aStyleBorder) {
|
|
uint32_t rowIndex = aFrame->RowIndex();
|
|
uint32_t columnIndex = aFrame->ColIndex();
|
|
|
|
nscoord borderWidth = nsPresContext::CSSPixelsToAppUnits(1);
|
|
|
|
nsTArray<int8_t>* rowLinesList = FindCellProperty(aFrame, RowLinesProperty());
|
|
|
|
nsTArray<int8_t>* columnLinesList =
|
|
FindCellProperty(aFrame, ColumnLinesProperty());
|
|
|
|
// We don't place a row line on top of the first row
|
|
if (rowIndex > 0 && rowLinesList) {
|
|
// If the row number is greater than the number of provided rowline
|
|
// values, we simply repeat the last value.
|
|
uint32_t listLength = rowLinesList->Length();
|
|
if (rowIndex < listLength) {
|
|
aStyleBorder.SetBorderStyle(
|
|
eSideTop,
|
|
static_cast<StyleBorderStyle>(rowLinesList->ElementAt(rowIndex - 1)));
|
|
} else {
|
|
aStyleBorder.SetBorderStyle(eSideTop,
|
|
static_cast<StyleBorderStyle>(
|
|
rowLinesList->ElementAt(listLength - 1)));
|
|
}
|
|
aStyleBorder.SetBorderWidth(eSideTop, borderWidth);
|
|
}
|
|
|
|
// We don't place a column line on the left of the first column.
|
|
if (columnIndex > 0 && columnLinesList) {
|
|
// If the column number is greater than the number of provided columline
|
|
// values, we simply repeat the last value.
|
|
uint32_t listLength = columnLinesList->Length();
|
|
if (columnIndex < listLength) {
|
|
aStyleBorder.SetBorderStyle(
|
|
eSideLeft, static_cast<StyleBorderStyle>(
|
|
columnLinesList->ElementAt(columnIndex - 1)));
|
|
} else {
|
|
aStyleBorder.SetBorderStyle(
|
|
eSideLeft, static_cast<StyleBorderStyle>(
|
|
columnLinesList->ElementAt(listLength - 1)));
|
|
}
|
|
aStyleBorder.SetBorderWidth(eSideLeft, borderWidth);
|
|
}
|
|
}
|
|
|
|
static nsMargin ComputeBorderOverflow(nsMathMLmtdFrame* aFrame,
|
|
const nsStyleBorder& aStyleBorder) {
|
|
nsMargin overflow;
|
|
int32_t rowIndex;
|
|
int32_t columnIndex;
|
|
nsTableFrame* table = aFrame->GetTableFrame();
|
|
aFrame->GetCellIndexes(rowIndex, columnIndex);
|
|
if (!columnIndex) {
|
|
overflow.left = table->GetColSpacing(-1);
|
|
overflow.right = table->GetColSpacing(0) / 2;
|
|
} else if (columnIndex == table->GetColCount() - 1) {
|
|
overflow.left = table->GetColSpacing(columnIndex - 1) / 2;
|
|
overflow.right = table->GetColSpacing(columnIndex + 1);
|
|
} else {
|
|
overflow.left = table->GetColSpacing(columnIndex - 1) / 2;
|
|
overflow.right = table->GetColSpacing(columnIndex) / 2;
|
|
}
|
|
if (!rowIndex) {
|
|
overflow.top = table->GetRowSpacing(-1);
|
|
overflow.bottom = table->GetRowSpacing(0) / 2;
|
|
} else if (rowIndex == table->GetRowCount() - 1) {
|
|
overflow.top = table->GetRowSpacing(rowIndex - 1) / 2;
|
|
overflow.bottom = table->GetRowSpacing(rowIndex + 1);
|
|
} else {
|
|
overflow.top = table->GetRowSpacing(rowIndex - 1) / 2;
|
|
overflow.bottom = table->GetRowSpacing(rowIndex) / 2;
|
|
}
|
|
return overflow;
|
|
}
|
|
|
|
/*
|
|
* A variant of the nsDisplayBorder contains special code to render a border
|
|
* around a nsMathMLmtdFrame based on the rowline and columnline properties
|
|
* set on the cell frame.
|
|
*/
|
|
class nsDisplaymtdBorder final : public nsDisplayBorder {
|
|
public:
|
|
nsDisplaymtdBorder(nsDisplayListBuilder* aBuilder, nsMathMLmtdFrame* aFrame)
|
|
: nsDisplayBorder(aBuilder, aFrame) {}
|
|
|
|
nsDisplayItemGeometry* AllocateGeometry(
|
|
nsDisplayListBuilder* aBuilder) override {
|
|
return new nsDisplayItemGenericImageGeometry(this, aBuilder);
|
|
}
|
|
|
|
void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const override {
|
|
auto geometry =
|
|
static_cast<const nsDisplayItemGenericImageGeometry*>(aGeometry);
|
|
|
|
if (aBuilder->ShouldSyncDecodeImages() &&
|
|
geometry->ShouldInvalidateToSyncDecodeImages()) {
|
|
bool snap;
|
|
aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
|
|
}
|
|
|
|
nsDisplayItem::ComputeInvalidationRegion(aBuilder, aGeometry,
|
|
aInvalidRegion);
|
|
}
|
|
|
|
virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const override {
|
|
*aSnap = true;
|
|
nsStyleBorder styleBorder = *mFrame->StyleBorder();
|
|
nsMathMLmtdFrame* frame = static_cast<nsMathMLmtdFrame*>(mFrame);
|
|
ApplyBorderToStyle(frame, styleBorder);
|
|
nsRect bounds = CalculateBounds<nsRect>(styleBorder);
|
|
nsMargin overflow = ComputeBorderOverflow(frame, styleBorder);
|
|
bounds.Inflate(overflow);
|
|
return bounds;
|
|
}
|
|
|
|
virtual void Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx) override {
|
|
nsStyleBorder styleBorder = *mFrame->StyleBorder();
|
|
nsMathMLmtdFrame* frame = static_cast<nsMathMLmtdFrame*>(mFrame);
|
|
ApplyBorderToStyle(frame, styleBorder);
|
|
|
|
nsRect bounds = nsRect(ToReferenceFrame(), mFrame->GetSize());
|
|
nsMargin overflow = ComputeBorderOverflow(frame, styleBorder);
|
|
bounds.Inflate(overflow);
|
|
|
|
PaintBorderFlags flags = aBuilder->ShouldSyncDecodeImages()
|
|
? PaintBorderFlags::SyncDecodeImages
|
|
: PaintBorderFlags();
|
|
|
|
ImgDrawResult result = nsCSSRendering::PaintBorderWithStyleBorder(
|
|
mFrame->PresContext(), *aCtx, mFrame, GetPaintRect(aBuilder, aCtx),
|
|
bounds, styleBorder, mFrame->Style(), flags, mFrame->GetSkipSides());
|
|
|
|
nsDisplayItemGenericImageGeometry::UpdateDrawResult(this, result);
|
|
}
|
|
|
|
bool CreateWebRenderCommands(
|
|
mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::RenderRootStateManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder) override {
|
|
return false;
|
|
}
|
|
|
|
virtual bool IsInvisibleInRect(const nsRect& aRect) const override {
|
|
return false;
|
|
}
|
|
};
|
|
|
|
#ifdef DEBUG
|
|
# define DEBUG_VERIFY_THAT_FRAME_IS(_frame, _expected) \
|
|
MOZ_ASSERT( \
|
|
mozilla::StyleDisplay::_expected == _frame->StyleDisplay()->mDisplay, \
|
|
"internal error");
|
|
#else
|
|
# define DEBUG_VERIFY_THAT_FRAME_IS(_frame, _expected)
|
|
#endif
|
|
|
|
static void ParseFrameAttribute(nsIFrame* aFrame, nsAtom* aAttribute,
|
|
bool aAllowMultiValues) {
|
|
nsAutoString attrValue;
|
|
|
|
Element* frameElement = aFrame->GetContent()->AsElement();
|
|
frameElement->GetAttr(kNameSpaceID_None, aAttribute, attrValue);
|
|
|
|
if (!attrValue.IsEmpty()) {
|
|
nsTArray<int8_t>* valueList =
|
|
ExtractStyleValues(attrValue, aAttribute, aAllowMultiValues);
|
|
|
|
// If valueList is null, that indicates a problem with the attribute value.
|
|
// Only set properties on a valid attribute value.
|
|
if (valueList) {
|
|
// The code reading the property assumes that this list is nonempty.
|
|
NS_ASSERTION(valueList->Length() >= 1, "valueList should not be empty!");
|
|
aFrame->SetProperty(AttributeToProperty(aAttribute), valueList);
|
|
} else {
|
|
ReportParseError(aFrame, aAttribute->GetUTF16String(), attrValue.get());
|
|
}
|
|
}
|
|
}
|
|
|
|
// rowspacing
|
|
//
|
|
// Specifies the distance between successive rows in an mtable. Multiple
|
|
// lengths can be specified, each corresponding to its respective position
|
|
// between rows. For example:
|
|
//
|
|
// [ROW_0]
|
|
// rowspace_0
|
|
// [ROW_1]
|
|
// rowspace_1
|
|
// [ROW_2]
|
|
//
|
|
// If the number of row gaps exceeds the number of lengths specified, the final
|
|
// specified length is repeated. Additional lengths are ignored.
|
|
//
|
|
// values: (length)+
|
|
// default: 1.0ex
|
|
//
|
|
// Unitless values are permitted and provide a multiple of the default value
|
|
// Negative values are forbidden.
|
|
//
|
|
|
|
// columnspacing
|
|
//
|
|
// Specifies the distance between successive columns in an mtable. Multiple
|
|
// lengths can be specified, each corresponding to its respective position
|
|
// between columns. For example:
|
|
//
|
|
// [COLUMN_0] columnspace_0 [COLUMN_1] columnspace_1 [COLUMN_2]
|
|
//
|
|
// If the number of column gaps exceeds the number of lengths specified, the
|
|
// final specified length is repeated. Additional lengths are ignored.
|
|
//
|
|
// values: (length)+
|
|
// default: 0.8em
|
|
//
|
|
// Unitless values are permitted and provide a multiple of the default value
|
|
// Negative values are forbidden.
|
|
//
|
|
|
|
// framespacing
|
|
//
|
|
// Specifies the distance between the mtable and its frame (if any). The
|
|
// first value specified provides the spacing between the left and right edge
|
|
// of the table and the frame, the second value determines the spacing between
|
|
// the top and bottom edges and the frame.
|
|
//
|
|
// An error is reported if only one length is passed. Any additional lengths
|
|
// are ignored
|
|
//
|
|
// values: length length
|
|
// default: 0em 0ex If frame attribute is "none" or not specified,
|
|
// 0.4em 0.5ex otherwise
|
|
//
|
|
// Unitless values are permitted and provide a multiple of the default value
|
|
// Negative values are forbidden.
|
|
//
|
|
|
|
static const float kDefaultRowspacingEx = 1.0f;
|
|
static const float kDefaultColumnspacingEm = 0.8f;
|
|
static const float kDefaultFramespacingArg0Em = 0.4f;
|
|
static const float kDefaultFramespacingArg1Ex = 0.5f;
|
|
|
|
static void ExtractSpacingValues(const nsAString& aString, nsAtom* aAttribute,
|
|
nsTArray<nscoord>& aSpacingArray,
|
|
nsIFrame* aFrame, nscoord aDefaultValue0,
|
|
nscoord aDefaultValue1,
|
|
float aFontSizeInflation) {
|
|
nsPresContext* presContext = aFrame->PresContext();
|
|
ComputedStyle* computedStyle = aFrame->Style();
|
|
|
|
const char16_t* start = aString.BeginReading();
|
|
const char16_t* end = aString.EndReading();
|
|
|
|
int32_t startIndex = 0;
|
|
int32_t count = 0;
|
|
int32_t elementNum = 0;
|
|
|
|
while (start < end) {
|
|
// Skip leading spaces.
|
|
while ((start < end) && nsCRT::IsAsciiSpace(*start)) {
|
|
start++;
|
|
startIndex++;
|
|
}
|
|
|
|
// Look for the end of the string, or another space.
|
|
while ((start < end) && !nsCRT::IsAsciiSpace(*start)) {
|
|
start++;
|
|
count++;
|
|
}
|
|
|
|
// Grab the value found and process it.
|
|
if (count > 0) {
|
|
const nsAString& str = Substring(aString, startIndex, count);
|
|
nsAutoString valueString;
|
|
valueString.Assign(str);
|
|
nscoord newValue;
|
|
if (aAttribute == nsGkAtoms::framespacing_ && elementNum) {
|
|
newValue = aDefaultValue1;
|
|
} else {
|
|
newValue = aDefaultValue0;
|
|
}
|
|
nsMathMLFrame::ParseNumericValue(
|
|
valueString, &newValue, dom::MathMLElement::PARSE_ALLOW_UNITLESS,
|
|
presContext, computedStyle, aFontSizeInflation);
|
|
aSpacingArray.AppendElement(newValue);
|
|
|
|
startIndex += count;
|
|
count = 0;
|
|
elementNum++;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void ParseSpacingAttribute(nsMathMLmtableFrame* aFrame,
|
|
nsAtom* aAttribute) {
|
|
NS_ASSERTION(aAttribute == nsGkAtoms::rowspacing_ ||
|
|
aAttribute == nsGkAtoms::columnspacing_ ||
|
|
aAttribute == nsGkAtoms::framespacing_,
|
|
"Non spacing attribute passed");
|
|
|
|
nsAutoString attrValue;
|
|
Element* frameElement = aFrame->GetContent()->AsElement();
|
|
frameElement->GetAttr(kNameSpaceID_None, aAttribute, attrValue);
|
|
|
|
if (nsGkAtoms::framespacing_ == aAttribute) {
|
|
nsAutoString frame;
|
|
frameElement->GetAttr(kNameSpaceID_None, nsGkAtoms::frame, frame);
|
|
if (frame.IsEmpty() || frame.EqualsLiteral("none")) {
|
|
aFrame->SetFrameSpacing(0, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
nscoord value;
|
|
nscoord value2;
|
|
// Set defaults
|
|
float fontSizeInflation = nsLayoutUtils::FontSizeInflationFor(aFrame);
|
|
RefPtr<nsFontMetrics> fm =
|
|
nsLayoutUtils::GetFontMetricsForFrame(aFrame, fontSizeInflation);
|
|
if (nsGkAtoms::rowspacing_ == aAttribute) {
|
|
value = kDefaultRowspacingEx * fm->XHeight();
|
|
value2 = 0;
|
|
} else if (nsGkAtoms::columnspacing_ == aAttribute) {
|
|
value = kDefaultColumnspacingEm * fm->EmHeight();
|
|
value2 = 0;
|
|
} else {
|
|
value = kDefaultFramespacingArg0Em * fm->EmHeight();
|
|
value2 = kDefaultFramespacingArg1Ex * fm->XHeight();
|
|
}
|
|
|
|
nsTArray<nscoord> valueList;
|
|
ExtractSpacingValues(attrValue, aAttribute, valueList, aFrame, value, value2,
|
|
fontSizeInflation);
|
|
if (valueList.Length() == 0) {
|
|
if (frameElement->HasAttr(kNameSpaceID_None, aAttribute)) {
|
|
ReportParseError(aFrame, aAttribute->GetUTF16String(), attrValue.get());
|
|
}
|
|
valueList.AppendElement(value);
|
|
}
|
|
if (aAttribute == nsGkAtoms::framespacing_) {
|
|
if (valueList.Length() == 1) {
|
|
if (frameElement->HasAttr(kNameSpaceID_None, aAttribute)) {
|
|
ReportParseError(aFrame, aAttribute->GetUTF16String(), attrValue.get());
|
|
}
|
|
valueList.AppendElement(value2);
|
|
} else if (valueList.Length() != 2) {
|
|
ReportParseError(aFrame, aAttribute->GetUTF16String(), attrValue.get());
|
|
}
|
|
}
|
|
|
|
if (aAttribute == nsGkAtoms::rowspacing_) {
|
|
aFrame->SetRowSpacingArray(valueList);
|
|
} else if (aAttribute == nsGkAtoms::columnspacing_) {
|
|
aFrame->SetColSpacingArray(valueList);
|
|
} else {
|
|
aFrame->SetFrameSpacing(valueList.ElementAt(0), valueList.ElementAt(1));
|
|
}
|
|
}
|
|
|
|
static void ParseSpacingAttributes(nsMathMLmtableFrame* aTableFrame) {
|
|
ParseSpacingAttribute(aTableFrame, nsGkAtoms::rowspacing_);
|
|
ParseSpacingAttribute(aTableFrame, nsGkAtoms::columnspacing_);
|
|
ParseSpacingAttribute(aTableFrame, nsGkAtoms::framespacing_);
|
|
aTableFrame->SetUseCSSSpacing();
|
|
}
|
|
|
|
// map all attributes 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(nsMathMLmtableFrame* aTableFrame) {
|
|
// Map mtable rowalign & rowlines.
|
|
ParseFrameAttribute(aTableFrame, nsGkAtoms::rowalign_, true);
|
|
ParseFrameAttribute(aTableFrame, nsGkAtoms::rowlines_, true);
|
|
|
|
// Map mtable columnalign & columnlines.
|
|
ParseFrameAttribute(aTableFrame, nsGkAtoms::columnalign_, true);
|
|
ParseFrameAttribute(aTableFrame, nsGkAtoms::columnlines_, true);
|
|
|
|
// Map mtable rowspacing, columnspacing & framespacing
|
|
ParseSpacingAttributes(aTableFrame);
|
|
|
|
// mtable is simple and only has one (pseudo) row-group
|
|
nsIFrame* rgFrame = aTableFrame->PrincipalChildList().FirstChild();
|
|
if (!rgFrame || !rgFrame->IsTableRowGroupFrame()) return;
|
|
|
|
for (nsIFrame* rowFrame : rgFrame->PrincipalChildList()) {
|
|
DEBUG_VERIFY_THAT_FRAME_IS(rowFrame, TableRow);
|
|
if (rowFrame->IsTableRowFrame()) {
|
|
// Map row rowalign.
|
|
ParseFrameAttribute(rowFrame, nsGkAtoms::rowalign_, false);
|
|
// Map row columnalign.
|
|
ParseFrameAttribute(rowFrame, nsGkAtoms::columnalign_, true);
|
|
|
|
for (nsIFrame* cellFrame : rowFrame->PrincipalChildList()) {
|
|
DEBUG_VERIFY_THAT_FRAME_IS(cellFrame, TableCell);
|
|
if (cellFrame->IsTableCellFrame()) {
|
|
// Map cell rowalign.
|
|
ParseFrameAttribute(cellFrame, nsGkAtoms::rowalign_, false);
|
|
// Map row columnalign.
|
|
ParseFrameAttribute(cellFrame, nsGkAtoms::columnalign_, false);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// 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->IsMathMLElement(nsGkAtoms::math) ||
|
|
// XXXbaku which kind of body tag?
|
|
c->NodeInfo()->NameAtom(nsGkAtoms::body))
|
|
break;
|
|
}
|
|
if (!f) f = atLeast;
|
|
f->List(stdout, 0);
|
|
}
|
|
#endif
|
|
|
|
// --------
|
|
// implementation of nsMathMLmtableWrapperFrame
|
|
|
|
NS_QUERYFRAME_HEAD(nsMathMLmtableWrapperFrame)
|
|
NS_QUERYFRAME_ENTRY(nsIMathMLFrame)
|
|
NS_QUERYFRAME_TAIL_INHERITING(nsTableWrapperFrame)
|
|
|
|
nsContainerFrame* NS_NewMathMLmtableOuterFrame(PresShell* aPresShell,
|
|
ComputedStyle* aStyle) {
|
|
return new (aPresShell)
|
|
nsMathMLmtableWrapperFrame(aStyle, aPresShell->GetPresContext());
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmtableWrapperFrame)
|
|
|
|
nsMathMLmtableWrapperFrame::~nsMathMLmtableWrapperFrame() = default;
|
|
|
|
nsresult nsMathMLmtableWrapperFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsAtom* aAttribute,
|
|
int32_t aModType) {
|
|
// Attributes specific to <mtable>:
|
|
// frame : in mathml.css
|
|
// framespacing : here
|
|
// groupalign : not yet supported
|
|
// equalrows : not yet supported
|
|
// equalcolumns : not yet supported
|
|
// displaystyle : here and in mathml.css
|
|
// align : in reflow
|
|
// rowalign : here
|
|
// rowlines : here
|
|
// rowspacing : here
|
|
// columnalign : here
|
|
// columnlines : here
|
|
// columnspacing : here
|
|
|
|
// mtable is simple and only has one (pseudo) row-group inside our inner-table
|
|
nsIFrame* tableFrame = mFrames.FirstChild();
|
|
NS_ASSERTION(tableFrame && tableFrame->IsTableFrame(),
|
|
"should always have an inner table frame");
|
|
nsIFrame* rgFrame = tableFrame->PrincipalChildList().FirstChild();
|
|
if (!rgFrame || !rgFrame->IsTableRowGroupFrame()) return NS_OK;
|
|
|
|
// align - just need to issue a dirty (resize) reflow command
|
|
if (aAttribute == nsGkAtoms::align) {
|
|
PresShell()->FrameNeedsReflow(this, IntrinsicDirty::Resize,
|
|
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(GetParent());
|
|
// Need to reflow the parent, not us, because this can actually
|
|
// affect siblings.
|
|
PresShell()->FrameNeedsReflow(GetParent(), IntrinsicDirty::StyleChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
return NS_OK;
|
|
}
|
|
|
|
// ...and the other attributes affect rows or columns in one way or another
|
|
|
|
nsPresContext* presContext = tableFrame->PresContext();
|
|
if (aAttribute == nsGkAtoms::rowspacing_ ||
|
|
aAttribute == nsGkAtoms::columnspacing_ ||
|
|
aAttribute == nsGkAtoms::framespacing_) {
|
|
nsMathMLmtableFrame* mathMLmtableFrame = do_QueryFrame(tableFrame);
|
|
if (mathMLmtableFrame) {
|
|
ParseSpacingAttribute(mathMLmtableFrame, aAttribute);
|
|
mathMLmtableFrame->SetUseCSSSpacing();
|
|
}
|
|
} else if (aAttribute == nsGkAtoms::rowalign_ ||
|
|
aAttribute == nsGkAtoms::rowlines_ ||
|
|
aAttribute == nsGkAtoms::columnalign_ ||
|
|
aAttribute == nsGkAtoms::columnlines_) {
|
|
// clear any cached property list for this table
|
|
tableFrame->RemoveProperty(AttributeToProperty(aAttribute));
|
|
// Reparse the new attribute on the table.
|
|
ParseFrameAttribute(tableFrame, aAttribute, true);
|
|
} else {
|
|
// Ignore attributes that do not affect layout.
|
|
return NS_OK;
|
|
}
|
|
|
|
// Explicitly request a reflow in our subtree to pick up any changes
|
|
presContext->PresShell()->FrameNeedsReflow(this, IntrinsicDirty::StyleChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIFrame* nsMathMLmtableWrapperFrame::GetRowFrameAt(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->IsTableFrame(),
|
|
"should always have an inner table frame");
|
|
nsIFrame* rgFrame = tableFrame->PrincipalChildList().FirstChild();
|
|
if (!rgFrame || !rgFrame->IsTableRowGroupFrame()) return nullptr;
|
|
for (nsIFrame* rowFrame : rgFrame->PrincipalChildList()) {
|
|
if (aRowIndex == 0) {
|
|
DEBUG_VERIFY_THAT_FRAME_IS(rowFrame, TableRow);
|
|
if (!rowFrame->IsTableRowFrame()) return nullptr;
|
|
|
|
return rowFrame;
|
|
}
|
|
--aRowIndex;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void nsMathMLmtableWrapperFrame::Reflow(nsPresContext* aPresContext,
|
|
ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) {
|
|
MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
|
|
|
|
nsAutoString value;
|
|
// we want to return a table that is anchored according to the align attribute
|
|
|
|
nsTableWrapperFrame::Reflow(aPresContext, aDesiredSize, aReflowInput,
|
|
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>
|
|
int32_t rowIndex = 0;
|
|
eAlign tableAlign = eAlign_axis;
|
|
mContent->AsElement()->GetAttr(kNameSpaceID_None, 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;
|
|
WritingMode wm = aDesiredSize.GetWritingMode();
|
|
nscoord blockSize = aDesiredSize.BSize(wm);
|
|
nsIFrame* rowFrame = nullptr;
|
|
if (rowIndex) {
|
|
rowFrame = GetRowFrameAt(rowIndex);
|
|
if (rowFrame) {
|
|
// translate the coordinates to be relative to us and in our writing mode
|
|
nsIFrame* frame = rowFrame;
|
|
LogicalRect rect(wm, frame->GetRect(),
|
|
aReflowInput.ComputedSizeAsContainerIfConstrained());
|
|
blockSize = rect.BSize(wm);
|
|
do {
|
|
nsIFrame* parent = frame->GetParent();
|
|
dy += frame->BStart(wm, parent->GetSize());
|
|
frame = parent;
|
|
} while (frame != this);
|
|
}
|
|
}
|
|
switch (tableAlign) {
|
|
case eAlign_top:
|
|
aDesiredSize.SetBlockStartAscent(dy);
|
|
break;
|
|
case eAlign_bottom:
|
|
aDesiredSize.SetBlockStartAscent(dy + blockSize);
|
|
break;
|
|
case eAlign_center:
|
|
aDesiredSize.SetBlockStartAscent(dy + blockSize / 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.SetBlockStartAscent(dy + rowAscent);
|
|
break;
|
|
}
|
|
}
|
|
// in other situations, fallback to center
|
|
aDesiredSize.SetBlockStartAscent(dy + blockSize / 2);
|
|
break;
|
|
case eAlign_axis:
|
|
default: {
|
|
// XXX should instead use style data from the row of reference here ?
|
|
RefPtr<nsFontMetrics> fm =
|
|
nsLayoutUtils::GetInflatedFontMetricsForFrame(this);
|
|
nscoord axisHeight;
|
|
GetAxisHeight(aReflowInput.mRenderingContext->GetDrawTarget(), fm,
|
|
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.SetBlockStartAscent(dy + rowAscent);
|
|
break;
|
|
}
|
|
}
|
|
// in other situations, fallback to using half of the height
|
|
aDesiredSize.SetBlockStartAscent(dy + blockSize / 2 + axisHeight);
|
|
}
|
|
}
|
|
|
|
mReference.x = 0;
|
|
mReference.y = aDesiredSize.BlockStartAscent();
|
|
|
|
// just make-up a bounding metrics
|
|
mBoundingMetrics = nsBoundingMetrics();
|
|
mBoundingMetrics.ascent = aDesiredSize.BlockStartAscent();
|
|
mBoundingMetrics.descent =
|
|
aDesiredSize.Height() - aDesiredSize.BlockStartAscent();
|
|
mBoundingMetrics.width = aDesiredSize.Width();
|
|
mBoundingMetrics.leftBearing = 0;
|
|
mBoundingMetrics.rightBearing = aDesiredSize.Width();
|
|
|
|
aDesiredSize.mBoundingMetrics = mBoundingMetrics;
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aDesiredSize);
|
|
}
|
|
|
|
nsContainerFrame* NS_NewMathMLmtableFrame(PresShell* aPresShell,
|
|
ComputedStyle* aStyle) {
|
|
return new (aPresShell)
|
|
nsMathMLmtableFrame(aStyle, aPresShell->GetPresContext());
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmtableFrame)
|
|
|
|
nsMathMLmtableFrame::~nsMathMLmtableFrame() = default;
|
|
|
|
void nsMathMLmtableFrame::SetInitialChildList(ChildListID aListID,
|
|
nsFrameList& aChildList) {
|
|
nsTableFrame::SetInitialChildList(aListID, aChildList);
|
|
MapAllAttributesIntoCSS(this);
|
|
}
|
|
|
|
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(), RestyleHint::RestyleSubtree(),
|
|
nsChangeHint_AllReflowHints);
|
|
}
|
|
|
|
nscoord nsMathMLmtableFrame::GetColSpacing(int32_t aColIndex) {
|
|
if (mUseCSSSpacing) {
|
|
return nsTableFrame::GetColSpacing(aColIndex);
|
|
}
|
|
if (!mColSpacing.Length()) {
|
|
NS_ERROR("mColSpacing should not be empty");
|
|
return 0;
|
|
}
|
|
if (aColIndex < 0 || aColIndex >= GetColCount()) {
|
|
NS_ASSERTION(aColIndex == -1 || aColIndex == GetColCount(),
|
|
"Desired column beyond bounds of table and border");
|
|
return mFrameSpacingX;
|
|
}
|
|
if ((uint32_t)aColIndex >= mColSpacing.Length()) {
|
|
return mColSpacing.LastElement();
|
|
}
|
|
return mColSpacing.ElementAt(aColIndex);
|
|
}
|
|
|
|
nscoord nsMathMLmtableFrame::GetColSpacing(int32_t aStartColIndex,
|
|
int32_t aEndColIndex) {
|
|
if (mUseCSSSpacing) {
|
|
return nsTableFrame::GetColSpacing(aStartColIndex, aEndColIndex);
|
|
}
|
|
if (aStartColIndex == aEndColIndex) {
|
|
return 0;
|
|
}
|
|
if (!mColSpacing.Length()) {
|
|
NS_ERROR("mColSpacing should not be empty");
|
|
return 0;
|
|
}
|
|
nscoord space = 0;
|
|
if (aStartColIndex < 0) {
|
|
NS_ASSERTION(aStartColIndex == -1,
|
|
"Desired column beyond bounds of table and border");
|
|
space += mFrameSpacingX;
|
|
aStartColIndex = 0;
|
|
}
|
|
if (aEndColIndex >= GetColCount()) {
|
|
NS_ASSERTION(aEndColIndex == GetColCount(),
|
|
"Desired column beyond bounds of table and border");
|
|
space += mFrameSpacingX;
|
|
aEndColIndex = GetColCount();
|
|
}
|
|
// Only iterate over column spacing when there is the potential to vary
|
|
int32_t min = std::min(aEndColIndex, (int32_t)mColSpacing.Length());
|
|
for (int32_t i = aStartColIndex; i < min; i++) {
|
|
space += mColSpacing.ElementAt(i);
|
|
}
|
|
// The remaining values are constant. Note that if there are more
|
|
// column spacings specified than there are columns, LastElement() will be
|
|
// multiplied by 0, so it is still safe to use.
|
|
space += (aEndColIndex - min) * mColSpacing.LastElement();
|
|
return space;
|
|
}
|
|
|
|
nscoord nsMathMLmtableFrame::GetRowSpacing(int32_t aRowIndex) {
|
|
if (mUseCSSSpacing) {
|
|
return nsTableFrame::GetRowSpacing(aRowIndex);
|
|
}
|
|
if (!mRowSpacing.Length()) {
|
|
NS_ERROR("mRowSpacing should not be empty");
|
|
return 0;
|
|
}
|
|
if (aRowIndex < 0 || aRowIndex >= GetRowCount()) {
|
|
NS_ASSERTION(aRowIndex == -1 || aRowIndex == GetRowCount(),
|
|
"Desired row beyond bounds of table and border");
|
|
return mFrameSpacingY;
|
|
}
|
|
if ((uint32_t)aRowIndex >= mRowSpacing.Length()) {
|
|
return mRowSpacing.LastElement();
|
|
}
|
|
return mRowSpacing.ElementAt(aRowIndex);
|
|
}
|
|
|
|
nscoord nsMathMLmtableFrame::GetRowSpacing(int32_t aStartRowIndex,
|
|
int32_t aEndRowIndex) {
|
|
if (mUseCSSSpacing) {
|
|
return nsTableFrame::GetRowSpacing(aStartRowIndex, aEndRowIndex);
|
|
}
|
|
if (aStartRowIndex == aEndRowIndex) {
|
|
return 0;
|
|
}
|
|
if (!mRowSpacing.Length()) {
|
|
NS_ERROR("mRowSpacing should not be empty");
|
|
return 0;
|
|
}
|
|
nscoord space = 0;
|
|
if (aStartRowIndex < 0) {
|
|
NS_ASSERTION(aStartRowIndex == -1,
|
|
"Desired row beyond bounds of table and border");
|
|
space += mFrameSpacingY;
|
|
aStartRowIndex = 0;
|
|
}
|
|
if (aEndRowIndex >= GetRowCount()) {
|
|
NS_ASSERTION(aEndRowIndex == GetRowCount(),
|
|
"Desired row beyond bounds of table and border");
|
|
space += mFrameSpacingY;
|
|
aEndRowIndex = GetRowCount();
|
|
}
|
|
// Only iterate over row spacing when there is the potential to vary
|
|
int32_t min = std::min(aEndRowIndex, (int32_t)mRowSpacing.Length());
|
|
for (int32_t i = aStartRowIndex; i < min; i++) {
|
|
space += mRowSpacing.ElementAt(i);
|
|
}
|
|
// The remaining values are constant. Note that if there are more
|
|
// row spacings specified than there are row, LastElement() will be
|
|
// multiplied by 0, so it is still safe to use.
|
|
space += (aEndRowIndex - min) * mRowSpacing.LastElement();
|
|
return space;
|
|
}
|
|
|
|
void nsMathMLmtableFrame::SetUseCSSSpacing() {
|
|
mUseCSSSpacing = !(mContent->AsElement()->HasAttr(kNameSpaceID_None,
|
|
nsGkAtoms::rowspacing_) ||
|
|
mContent->AsElement()->HasAttr(
|
|
kNameSpaceID_None, nsGkAtoms::columnspacing_) ||
|
|
mContent->AsElement()->HasAttr(kNameSpaceID_None,
|
|
nsGkAtoms::framespacing_));
|
|
}
|
|
|
|
NS_QUERYFRAME_HEAD(nsMathMLmtableFrame)
|
|
NS_QUERYFRAME_ENTRY(nsMathMLmtableFrame)
|
|
NS_QUERYFRAME_TAIL_INHERITING(nsTableFrame)
|
|
|
|
// --------
|
|
// implementation of nsMathMLmtrFrame
|
|
|
|
nsContainerFrame* NS_NewMathMLmtrFrame(PresShell* aPresShell,
|
|
ComputedStyle* aStyle) {
|
|
return new (aPresShell)
|
|
nsMathMLmtrFrame(aStyle, aPresShell->GetPresContext());
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmtrFrame)
|
|
|
|
nsMathMLmtrFrame::~nsMathMLmtrFrame() = default;
|
|
|
|
nsresult nsMathMLmtrFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsAtom* aAttribute,
|
|
int32_t aModType) {
|
|
// Attributes specific to <mtr>:
|
|
// groupalign : Not yet supported.
|
|
// rowalign : Here
|
|
// columnalign : Here
|
|
|
|
nsPresContext* presContext = PresContext();
|
|
|
|
if (aAttribute != nsGkAtoms::rowalign_ &&
|
|
aAttribute != nsGkAtoms::columnalign_) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RemoveProperty(AttributeToProperty(aAttribute));
|
|
|
|
bool allowMultiValues = (aAttribute == nsGkAtoms::columnalign_);
|
|
|
|
// Reparse the new attribute.
|
|
ParseFrameAttribute(this, aAttribute, allowMultiValues);
|
|
|
|
// Explicitly request a reflow in our subtree to pick up any changes
|
|
presContext->PresShell()->FrameNeedsReflow(this, IntrinsicDirty::StyleChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// --------
|
|
// implementation of nsMathMLmtdFrame
|
|
|
|
nsContainerFrame* NS_NewMathMLmtdFrame(PresShell* aPresShell,
|
|
ComputedStyle* aStyle,
|
|
nsTableFrame* aTableFrame) {
|
|
return new (aPresShell) nsMathMLmtdFrame(aStyle, aTableFrame);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmtdFrame)
|
|
|
|
nsMathMLmtdFrame::~nsMathMLmtdFrame() = default;
|
|
|
|
void nsMathMLmtdFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
|
|
nsIFrame* aPrevInFlow) {
|
|
nsTableCellFrame::Init(aContent, aParent, aPrevInFlow);
|
|
|
|
// We want to use the ancestor <math> element's font inflation to avoid
|
|
// individual cells having their own varying font inflation.
|
|
RemoveStateBits(NS_FRAME_FONT_INFLATION_FLOW_ROOT);
|
|
}
|
|
|
|
nsresult nsMathMLmtdFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsAtom* aAttribute,
|
|
int32_t aModType) {
|
|
// Attributes specific to <mtd>:
|
|
// groupalign : Not yet supported
|
|
// rowalign : here
|
|
// columnalign : here
|
|
// rowspan : here
|
|
// columnspan : here
|
|
|
|
if (aAttribute == nsGkAtoms::rowalign_ ||
|
|
aAttribute == nsGkAtoms::columnalign_) {
|
|
RemoveProperty(AttributeToProperty(aAttribute));
|
|
|
|
// Reparse the attribute.
|
|
ParseFrameAttribute(this, aAttribute, false);
|
|
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;
|
|
}
|
|
|
|
StyleVerticalAlignKeyword nsMathMLmtdFrame::GetVerticalAlign() const {
|
|
// Set the default alignment in case no alignment was specified
|
|
auto alignment = nsTableCellFrame::GetVerticalAlign();
|
|
|
|
nsTArray<int8_t>* alignmentList = FindCellProperty(this, RowAlignProperty());
|
|
|
|
if (alignmentList) {
|
|
uint32_t rowIndex = RowIndex();
|
|
|
|
// If the row number is greater than the number of provided rowalign values,
|
|
// we simply repeat the last value.
|
|
return static_cast<StyleVerticalAlignKeyword>(
|
|
(rowIndex < alignmentList->Length())
|
|
? alignmentList->ElementAt(rowIndex)
|
|
: alignmentList->LastElement());
|
|
}
|
|
|
|
return alignment;
|
|
}
|
|
|
|
nsresult nsMathMLmtdFrame::ProcessBorders(nsTableFrame* aFrame,
|
|
nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayListSet& aLists) {
|
|
aLists.BorderBackground()->AppendNewToTop<nsDisplaymtdBorder>(aBuilder, this);
|
|
return NS_OK;
|
|
}
|
|
|
|
LogicalMargin nsMathMLmtdFrame::GetBorderWidth(WritingMode aWM) const {
|
|
nsStyleBorder styleBorder = *StyleBorder();
|
|
ApplyBorderToStyle(this, styleBorder);
|
|
return LogicalMargin(aWM, styleBorder.GetComputedBorder());
|
|
}
|
|
|
|
nsMargin nsMathMLmtdFrame::GetBorderOverflow() {
|
|
nsStyleBorder styleBorder = *StyleBorder();
|
|
ApplyBorderToStyle(this, styleBorder);
|
|
nsMargin overflow = ComputeBorderOverflow(this, styleBorder);
|
|
return overflow;
|
|
}
|
|
|
|
// --------
|
|
// implementation of nsMathMLmtdInnerFrame
|
|
|
|
NS_QUERYFRAME_HEAD(nsMathMLmtdInnerFrame)
|
|
NS_QUERYFRAME_ENTRY(nsIMathMLFrame)
|
|
NS_QUERYFRAME_TAIL_INHERITING(nsBlockFrame)
|
|
|
|
nsContainerFrame* NS_NewMathMLmtdInnerFrame(PresShell* aPresShell,
|
|
ComputedStyle* aStyle) {
|
|
return new (aPresShell)
|
|
nsMathMLmtdInnerFrame(aStyle, aPresShell->GetPresContext());
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmtdInnerFrame)
|
|
|
|
nsMathMLmtdInnerFrame::nsMathMLmtdInnerFrame(ComputedStyle* aStyle,
|
|
nsPresContext* aPresContext)
|
|
: nsBlockFrame(aStyle, aPresContext, kClassID)
|
|
// Make a copy of the parent nsStyleText for later modification.
|
|
,
|
|
mUniqueStyleText(MakeUnique<nsStyleText>(*StyleText())) {}
|
|
|
|
void nsMathMLmtdInnerFrame::Reflow(nsPresContext* aPresContext,
|
|
ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) {
|
|
// Let the base class do the reflow
|
|
nsBlockFrame::Reflow(aPresContext, aDesiredSize, aReflowInput, aStatus);
|
|
|
|
// more about <maligngroup/> and <malignmark/> later
|
|
// ...
|
|
}
|
|
|
|
const nsStyleText* nsMathMLmtdInnerFrame::StyleTextForLineLayout() {
|
|
// Set the default alignment in case nothing was specified
|
|
auto alignment = uint8_t(StyleText()->mTextAlign);
|
|
|
|
nsTArray<int8_t>* alignmentList =
|
|
FindCellProperty(this, ColumnAlignProperty());
|
|
|
|
if (alignmentList) {
|
|
nsMathMLmtdFrame* cellFrame = (nsMathMLmtdFrame*)GetParent();
|
|
uint32_t columnIndex = cellFrame->ColIndex();
|
|
|
|
// If the column number is greater than the number of provided columalign
|
|
// values, we simply repeat the last value.
|
|
if (columnIndex < alignmentList->Length())
|
|
alignment = alignmentList->ElementAt(columnIndex);
|
|
else
|
|
alignment = alignmentList->ElementAt(alignmentList->Length() - 1);
|
|
}
|
|
|
|
mUniqueStyleText->mTextAlign = StyleTextAlign(alignment);
|
|
return mUniqueStyleText.get();
|
|
}
|
|
|
|
/* virtual */
|
|
void nsMathMLmtdInnerFrame::DidSetComputedStyle(
|
|
ComputedStyle* aOldComputedStyle) {
|
|
nsBlockFrame::DidSetComputedStyle(aOldComputedStyle);
|
|
mUniqueStyleText = MakeUnique<nsStyleText>(*StyleText());
|
|
}
|