Mozilla/mozilla/layout/html/content/src/nsHTMLTableCellElement.cpp
peterl%netscape.com 27453e4edf fix color handling
git-svn-id: svn://10.0.0.236/trunk@39939 18797224-902f-48f8-a5cc-f745e15eee43
1999-07-18 00:20:27 +00:00

543 lines
17 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1998
* Netscape Communications Corporation. All Rights Reserved.
*/
#include "nsIHTMLTableCellElement.h"
#include "nsIDOMHTMLTableCellElement.h"
#include "nsIDOMHTMLTableRowElement.h"
#include "nsIDOMHTMLCollection.h"
#include "nsIScriptObjectOwner.h"
#include "nsIDOMEventReceiver.h"
#include "nsIHTMLContent.h"
#include "nsIHTMLAttributes.h"
#include "nsGenericHTMLElement.h"
#include "nsHTMLAtoms.h"
#include "nsHTMLIIDs.h"
#include "nsIStyleContext.h"
#include "nsStyleConsts.h"
#include "nsIPresContext.h"
static NS_DEFINE_IID(kIDOMHTMLTableCellElementIID, NS_IDOMHTMLTABLECELLELEMENT_IID);
static NS_DEFINE_IID(kIHTMLTableCellElementIID, NS_IHTMLTABLECELLELEMENT_IID);
static NS_DEFINE_IID(kIDOMHTMLTableRowElementIID, NS_IDOMHTMLTABLEROWELEMENT_IID);
class nsHTMLTableCellElement : public nsIHTMLTableCellElement,
public nsIDOMHTMLTableCellElement,
public nsIScriptObjectOwner,
public nsIDOMEventReceiver,
public nsIHTMLContent
{
public:
nsHTMLTableCellElement(nsIAtom* aTag);
virtual ~nsHTMLTableCellElement();
// nsISupports
NS_DECL_ISUPPORTS
// nsIHTMLTableCellElement
/** @return the starting column for this cell. Always >= 1 */
NS_METHOD GetColIndex (PRInt32* aColIndex);
/** set the starting column for this cell. Always >= 1 */
NS_METHOD SetColIndex (PRInt32 aColIndex);
// nsIDOMNode
NS_IMPL_IDOMNODE_USING_GENERIC(mInner)
// nsIDOMElement
NS_IMPL_IDOMELEMENT_USING_GENERIC(mInner)
// nsIDOMHTMLElement
NS_IMPL_IDOMHTMLELEMENT_USING_GENERIC(mInner)
// nsIDOMHTMLTableCellElement
NS_IMETHOD GetCellIndex(PRInt32* aCellIndex);
NS_IMETHOD SetCellIndex(PRInt32 aCellIndex);
NS_IMETHOD GetAbbr(nsString& aAbbr);
NS_IMETHOD SetAbbr(const nsString& aAbbr);
NS_IMETHOD GetAlign(nsString& aAlign);
NS_IMETHOD SetAlign(const nsString& aAlign);
NS_IMETHOD GetAxis(nsString& aAxis);
NS_IMETHOD SetAxis(const nsString& aAxis);
NS_IMETHOD GetBgColor(nsString& aBgColor);
NS_IMETHOD SetBgColor(const nsString& aBgColor);
NS_IMETHOD GetCh(nsString& aCh);
NS_IMETHOD SetCh(const nsString& aCh);
NS_IMETHOD GetChOff(nsString& aChOff);
NS_IMETHOD SetChOff(const nsString& aChOff);
NS_IMETHOD GetColSpan(PRInt32* aColSpan);
NS_IMETHOD SetColSpan(PRInt32 aColSpan);
NS_IMETHOD GetHeaders(nsString& aHeaders);
NS_IMETHOD SetHeaders(const nsString& aHeaders);
NS_IMETHOD GetHeight(nsString& aHeight);
NS_IMETHOD SetHeight(const nsString& aHeight);
NS_IMETHOD GetNoWrap(PRBool* aNoWrap);
NS_IMETHOD SetNoWrap(PRBool aNoWrap);
NS_IMETHOD GetRowSpan(PRInt32* aRowSpan);
NS_IMETHOD SetRowSpan(PRInt32 aRowSpan);
NS_IMETHOD GetScope(nsString& aScope);
NS_IMETHOD SetScope(const nsString& aScope);
NS_IMETHOD GetVAlign(nsString& aVAlign);
NS_IMETHOD SetVAlign(const nsString& aVAlign);
NS_IMETHOD GetWidth(nsString& aWidth);
NS_IMETHOD SetWidth(const nsString& aWidth);
// nsIScriptObjectOwner
NS_IMPL_ISCRIPTOBJECTOWNER_USING_GENERIC(mInner)
// nsIDOMEventReceiver
NS_IMPL_IDOMEVENTRECEIVER_USING_GENERIC(mInner)
// nsIContent
NS_IMPL_ICONTENT_USING_GENERIC(mInner)
// nsIHTMLContent
NS_IMPL_IHTMLCONTENT_USING_GENERIC2(mInner)
protected:
nsresult GetRow(nsIDOMHTMLTableRowElement** aRow);
nsGenericHTMLContainerElement mInner;
PRInt32 mColIndex;
};
nsresult
NS_NewHTMLTableCellElement(nsIHTMLContent** aInstancePtrResult, nsIAtom* aTag)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
nsIHTMLContent* it = new nsHTMLTableCellElement(aTag);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(kIHTMLContentIID, (void**) aInstancePtrResult);
}
nsHTMLTableCellElement::nsHTMLTableCellElement(nsIAtom* aTag)
{
NS_INIT_REFCNT();
mInner.Init(this, aTag);
mColIndex=0;
}
nsHTMLTableCellElement::~nsHTMLTableCellElement()
{
}
NS_IMPL_ADDREF(nsHTMLTableCellElement)
NS_IMPL_RELEASE(nsHTMLTableCellElement)
nsresult
nsHTMLTableCellElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
NS_IMPL_HTML_CONTENT_QUERY_INTERFACE(aIID, aInstancePtr, this)
if (aIID.Equals(kIDOMHTMLTableCellElementIID)) {
nsIDOMHTMLTableCellElement* tmp = this;
*aInstancePtr = (void*) tmp;
mRefCnt++;
return NS_OK;
}
else if (aIID.Equals(kIHTMLTableCellElementIID)) {
nsIHTMLTableCellElement* tmp = this;
*aInstancePtr = (void*) tmp;
mRefCnt++;
return NS_OK;
}
return NS_NOINTERFACE;
}
nsresult
nsHTMLTableCellElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
{
nsHTMLTableCellElement* it = new nsHTMLTableCellElement(mInner.mTag);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
mInner.CopyInnerTo(this, &it->mInner, aDeep);
return it->QueryInterface(kIDOMNodeIID, (void**) aReturn);
}
/** @return the starting column for this cell in aColIndex. Always >= 1 */
NS_METHOD nsHTMLTableCellElement::GetColIndex (PRInt32* aColIndex)
{
*aColIndex = mColIndex;
return NS_OK;
}
/** set the starting column for this cell. Always >= 1 */
NS_METHOD nsHTMLTableCellElement::SetColIndex (PRInt32 aColIndex)
{
mColIndex = aColIndex;
return NS_OK;
}
// protected method
nsresult
nsHTMLTableCellElement::GetRow(nsIDOMHTMLTableRowElement** aRow)
{
nsIDOMNode *rowNode;
GetParentNode(&rowNode);
nsresult result = rowNode->QueryInterface(kIDOMHTMLTableRowElementIID, (void**)aRow);
NS_RELEASE(rowNode);
return result;
}
NS_IMETHODIMP
nsHTMLTableCellElement::GetCellIndex(PRInt32* aCellIndex)
{
*aCellIndex = -1;
nsIDOMHTMLTableRowElement* row = nsnull;
GetRow(&row);
nsIDOMHTMLCollection *cells = nsnull;
row->GetCells(&cells);
PRUint32 numCells;
cells->GetLength(&numCells);
PRBool found = PR_FALSE;
for (PRUint32 i = 0; (i < numCells) && !found; i++) {
nsIDOMNode *node = nsnull;
cells->Item(i, &node);
if (this == node) {
*aCellIndex = i;
found = PR_TRUE;
}
NS_IF_RELEASE(node);
}
NS_RELEASE(cells);
NS_RELEASE(row);
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableCellElement::SetCellIndex(PRInt32 aCellIndex)
{
PRInt32 oldIndex;
nsresult result = GetCellIndex(&oldIndex);
if ((-1 == oldIndex) || (oldIndex == aCellIndex) || (NS_OK != result)) {
return NS_OK;
}
nsIDOMHTMLTableRowElement* row = nsnull;
GetRow(&row);
nsIDOMHTMLCollection *cells = nsnull;
row->GetCells(&cells);
PRUint32 numCellsU;
cells->GetLength(&numCellsU);
PRInt32 numCells = numCellsU;
// check if it really moves
if ( !(((0 == oldIndex) && (aCellIndex <= 0)) || ((numCells-1 == oldIndex) && (aCellIndex >= numCells-1)))) {
AddRef(); // don't use NS_ADDREF_THIS
row->DeleteCell(oldIndex); // delete this from the row
numCells--;
nsIDOMNode *returnNode;
if ((numCells <= 0) || (aCellIndex >= numCells)) {
row->AppendChild(this, &returnNode); // add this back into the row
} else {
PRInt32 newIndex = aCellIndex;
if (aCellIndex <= 0) {
newIndex = 0;
} else if (aCellIndex > oldIndex) {
newIndex--;
}
nsIDOMNode *refNode;
cells->Item(newIndex, &refNode);
row->InsertBefore(this, refNode, &returnNode); // add this back into the row
NS_IF_RELEASE(refNode);
}
}
NS_RELEASE(cells);
NS_RELEASE(row);
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableCellElement::GetContentStyleRules(nsISupportsArray* aRules)
{
// get table, add its rules too
nsIContent* row = nsnull; // XXX can we safely presume structure or do we need to QI on the way up?
if (NS_SUCCEEDED(GetParent(row)) && row) {
nsIContent* section = nsnull;
if (NS_SUCCEEDED(row->GetParent(section)) && section) {
nsIContent* table = nsnull;
if (NS_SUCCEEDED(section->GetParent(table)) && table) {
nsIStyledContent* styledTable = nsnull;
if (NS_SUCCEEDED(table->QueryInterface(kIStyledContentIID, (void**)&styledTable))) {
styledTable->GetContentStyleRules(aRules);
NS_RELEASE(styledTable);
}
NS_RELEASE(table);
}
NS_RELEASE(section);
}
NS_RELEASE(row);
}
return mInner.GetContentStyleRules(aRules);
}
NS_IMETHODIMP
nsHTMLTableCellElement::GetInlineStyleRules(nsISupportsArray* aRules)
{
return mInner.GetInlineStyleRules(aRules);
}
NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Abbr, abbr)
NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Align, align)
NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Axis, axis)
NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, BgColor, bgcolor)
NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Ch, ch)
NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, ChOff, choff)
NS_IMPL_INT_ATTR(nsHTMLTableCellElement, ColSpan, colspan)
NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Headers, headers)
NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Height, height)
NS_IMPL_BOOL_ATTR(nsHTMLTableCellElement, NoWrap, nowrap)
NS_IMPL_INT_ATTR(nsHTMLTableCellElement, RowSpan, rowspan)
NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Scope, scope)
NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, VAlign, valign)
NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Width, width)
static nsGenericHTMLElement::EnumTable kCellScopeTable[] = {
{ "row", NS_STYLE_CELL_SCOPE_ROW },
{ "col", NS_STYLE_CELL_SCOPE_COL },
{ "rowgroup", NS_STYLE_CELL_SCOPE_ROWGROUP },
{ "colgroup", NS_STYLE_CELL_SCOPE_COLGROUP },
{ 0 }
};
NS_IMETHODIMP
nsHTMLTableCellElement::StringToAttribute(nsIAtom* aAttribute,
const nsString& aValue,
nsHTMLValue& aResult)
{
/* ignore these attributes, stored simply as strings
abbr, axis, ch, headers
*/
/* attributes that resolve to integers with a min of 0 */
if (aAttribute == nsHTMLAtoms::choff) {
nsGenericHTMLElement::ParseValue(aValue, 0, aResult, eHTMLUnit_Integer);
return NS_CONTENT_ATTR_HAS_VALUE;
}
/* attributes that resolve to integers with a min of 1 */
if ((aAttribute == nsHTMLAtoms::colspan) ||
(aAttribute == nsHTMLAtoms::rowspan)) {
nsGenericHTMLElement::ParseValue(aValue, 1, aResult, eHTMLUnit_Integer);
return NS_CONTENT_ATTR_HAS_VALUE;
}
/* attributes that resolve to integers or percents */
else if (aAttribute == nsHTMLAtoms::height) {
nsGenericHTMLElement::ParseValueOrPercent(aValue, aResult, eHTMLUnit_Pixel);
return NS_CONTENT_ATTR_HAS_VALUE;
}
/* attributes that resolve to integers or percents or proportions */
else if (aAttribute == nsHTMLAtoms::width) {
nsGenericHTMLElement::ParseValueOrPercentOrProportional(aValue, aResult, eHTMLUnit_Pixel);
return NS_CONTENT_ATTR_HAS_VALUE;
}
/* other attributes */
else if (aAttribute == nsHTMLAtoms::align) {
if (nsGenericHTMLElement::ParseTableHAlignValue(aValue, aResult)) {
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
else if (aAttribute == nsHTMLAtoms::background) {
aResult.SetStringValue(aValue);
return NS_CONTENT_ATTR_HAS_VALUE;
}
else if (aAttribute == nsHTMLAtoms::bgcolor) {
nsGenericHTMLElement::ParseColor(aValue, mInner.mDocument, aResult);
return NS_CONTENT_ATTR_HAS_VALUE;
}
else if (aAttribute == nsHTMLAtoms::nowrap) {
aResult.SetEmptyValue();
return NS_CONTENT_ATTR_HAS_VALUE;
}
else if (aAttribute == nsHTMLAtoms::scope) {
if (nsGenericHTMLElement::ParseEnumValue(aValue, kCellScopeTable, aResult)) {
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
else if (aAttribute == nsHTMLAtoms::valign) {
if (nsGenericHTMLElement::ParseTableVAlignValue(aValue, aResult)) {
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
return NS_CONTENT_ATTR_NOT_THERE;
}
NS_IMETHODIMP
nsHTMLTableCellElement::AttributeToString(nsIAtom* aAttribute,
const nsHTMLValue& aValue,
nsString& aResult) const
{
/* ignore these attributes, stored already as strings
abbr, axis, ch, headers
*/
/* ignore attributes that are of standard types
choff, colspan, rowspan, height, width, nowrap, background, bgcolor
*/
if (aAttribute == nsHTMLAtoms::align) {
if (nsGenericHTMLElement::TableHAlignValueToString(aValue, aResult)) {
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
else if (aAttribute == nsHTMLAtoms::scope) {
if (nsGenericHTMLElement::EnumValueToString(aValue, kCellScopeTable, aResult)) {
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
else if (aAttribute == nsHTMLAtoms::valign) {
if (nsGenericHTMLElement::TableVAlignValueToString(aValue, aResult)) {
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
return mInner.AttributeToString(aAttribute, aValue, aResult);
}
static void
MapAttributesInto(const nsIHTMLMappedAttributes* aAttributes,
nsIStyleContext* aContext,
nsIPresContext* aPresContext)
{
NS_PRECONDITION(nsnull!=aContext, "bad style context arg");
NS_PRECONDITION(nsnull!=aPresContext, "bad presentation context arg");
if (nsnull!=aAttributes)
{
nsHTMLValue value;
nsHTMLValue widthValue;
nsStyleText* textStyle = nsnull;
// align: enum
aAttributes->GetAttribute(nsHTMLAtoms::align, value);
if (value.GetUnit() == eHTMLUnit_Enumerated)
{
textStyle = (nsStyleText*)aContext->GetMutableStyleData(eStyleStruct_Text);
textStyle->mTextAlign = value.GetIntValue();
}
// valign: enum
aAttributes->GetAttribute(nsHTMLAtoms::valign, value);
if (value.GetUnit() == eHTMLUnit_Enumerated)
{
if (nsnull==textStyle)
textStyle = (nsStyleText*)aContext->GetMutableStyleData(eStyleStruct_Text);
textStyle->mVerticalAlign.SetIntValue(value.GetIntValue(), eStyleUnit_Enumerated);
}
// width: pixel
float p2t;
aPresContext->GetScaledPixelsToTwips(&p2t);
nsStylePosition* pos = (nsStylePosition*)
aContext->GetMutableStyleData(eStyleStruct_Position);
aAttributes->GetAttribute(nsHTMLAtoms::width, widthValue);
if (widthValue.GetUnit() == eHTMLUnit_Pixel) {
nscoord width = widthValue.GetPixelValue();
nscoord twips = NSIntPixelsToTwips(width, p2t);
pos->mWidth.SetCoordValue(twips);
}
else if (widthValue.GetUnit() == eHTMLUnit_Percent) {
float widthPercent = widthValue.GetPercentValue();
pos->mWidth.SetPercentValue(widthPercent);
}
// height: pixel
aAttributes->GetAttribute(nsHTMLAtoms::height, value);
if (value.GetUnit() == eHTMLUnit_Pixel) {
nscoord height = value.GetPixelValue();
nscoord twips = NSIntPixelsToTwips(height, p2t);
pos->mHeight.SetCoordValue(twips);
}
// nowrap
// nowrap depends on the width attribute, so be sure to handle it after width is mapped!
aAttributes->GetAttribute(nsHTMLAtoms::nowrap, value);
if (value.GetUnit() == eHTMLUnit_Empty)
{
if (widthValue.GetUnit() != eHTMLUnit_Pixel)
{
if (nsnull==textStyle)
textStyle = (nsStyleText*)aContext->GetMutableStyleData(eStyleStruct_Text);
textStyle->mWhiteSpace = NS_STYLE_WHITESPACE_NOWRAP;
}
}
nsGenericHTMLElement::MapBackgroundAttributesInto(aAttributes, aContext, aPresContext);
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext, aPresContext);
}
}
NS_IMETHODIMP
nsHTMLTableCellElement::GetMappedAttributeImpact(const nsIAtom* aAttribute,
PRInt32& aHint) const
{
if ((aAttribute == nsHTMLAtoms::align) ||
(aAttribute == nsHTMLAtoms::valign) ||
(aAttribute == nsHTMLAtoms::nowrap) ||
(aAttribute == nsHTMLAtoms::abbr) ||
(aAttribute == nsHTMLAtoms::axis) ||
(aAttribute == nsHTMLAtoms::headers) ||
(aAttribute == nsHTMLAtoms::scope) ||
(aAttribute == nsHTMLAtoms::width) ||
(aAttribute == nsHTMLAtoms::height)) {
aHint = NS_STYLE_HINT_REFLOW;
}
else if (! nsGenericHTMLElement::GetCommonMappedAttributesImpact(aAttribute, aHint)) {
if (! nsGenericHTMLElement::GetBackgroundAttributesImpact(aAttribute, aHint)) {
aHint = NS_STYLE_HINT_CONTENT;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableCellElement::GetAttributeMappingFunctions(nsMapAttributesFunc& aFontMapFunc,
nsMapAttributesFunc& aMapFunc) const
{
aFontMapFunc = nsnull;
aMapFunc = &MapAttributesInto;
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableCellElement::HandleDOMEvent(nsIPresContext& aPresContext,
nsEvent* aEvent,
nsIDOMEvent** aDOMEvent,
PRUint32 aFlags,
nsEventStatus& aEventStatus)
{
return mInner.HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
aFlags, aEventStatus);
}