Mozilla/mozilla/layout/html/content/src/nsHTMLTableRowElement.cpp
peterl%netscape.com 4c73c7609e Cleaned up attribute parsing so that illegal values are preserved as strings
git-svn-id: svn://10.0.0.236/trunk@40994 18797224-902f-48f8-a5cc-f745e15eee43
1999-07-24 19:55:35 +00:00

647 lines
19 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 "nsIDOMHTMLTableRowElement.h"
#include "nsIDOMHTMLTableElement.h"
#include "nsIDOMHTMLTableSectionElement.h"
#include "nsIDOMHTMLTableCellElement.h"
#include "nsIScriptObjectOwner.h"
#include "nsIDOMEventReceiver.h"
#include "nsIHTMLContent.h"
#include "nsIHTMLAttributes.h"
#include "nsGenericHTMLElement.h"
#include "GenericElementCollection.h"
#include "nsHTMLAtoms.h"
#include "nsHTMLIIDs.h"
#include "nsIStyleContext.h"
#include "nsStyleConsts.h"
#include "nsIPresContext.h"
#include "nsHTMLParts.h"
// temporary
#include "nsIDocument.h"
#include "nsIPresShell.h"
#include "nsIFrame.h"
static NS_DEFINE_IID(kIDOMHTMLTableRowElementIID, NS_IDOMHTMLTABLEROWELEMENT_IID);
static NS_DEFINE_IID(kIDOMHTMLTableElementIID, NS_IDOMHTMLTABLEELEMENT_IID);
static NS_DEFINE_IID(kIDOMHTMLTableSectionElementIID, NS_IDOMHTMLTABLESECTIONELEMENT_IID);
static NS_DEFINE_IID(kIDOMHTMLTableCellElementIID, NS_IDOMHTMLTABLECELLELEMENT_IID);
static NS_DEFINE_IID(kIDOMHTMLCollectionIID, NS_IDOMHTMLCOLLECTION_IID);
class nsHTMLTableRowElement : public nsIDOMHTMLTableRowElement,
public nsIScriptObjectOwner,
public nsIDOMEventReceiver,
public nsIHTMLContent
{
public:
nsHTMLTableRowElement(nsIAtom* aTag);
virtual ~nsHTMLTableRowElement();
// nsISupports
NS_DECL_ISUPPORTS
// nsIDOMNode
NS_IMPL_IDOMNODE_USING_GENERIC(mInner)
// nsIDOMElement
NS_IMPL_IDOMELEMENT_USING_GENERIC(mInner)
// nsIDOMHTMLElement
NS_IMPL_IDOMHTMLELEMENT_USING_GENERIC(mInner)
// nsIDOMHTMLTableRowElement
NS_IMETHOD GetRowIndex(PRInt32* aRowIndex);
NS_IMETHOD SetRowIndex(PRInt32 aRowIndex);
NS_IMETHOD GetSectionRowIndex(PRInt32* aSectionRowIndex);
NS_IMETHOD SetSectionRowIndex(PRInt32 aSectionRowIndex);
NS_IMETHOD GetCells(nsIDOMHTMLCollection** aCells);
NS_IMETHOD SetCells(nsIDOMHTMLCollection* aCells);
NS_IMETHOD GetAlign(nsString& aAlign);
NS_IMETHOD SetAlign(const nsString& aAlign);
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 GetVAlign(nsString& aVAlign);
NS_IMETHOD SetVAlign(const nsString& aVAlign);
NS_IMETHOD InsertCell(PRInt32 aIndex, nsIDOMHTMLElement** aReturn);
NS_IMETHOD DeleteCell(PRInt32 aIndex);
// 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_GENERIC(mInner)
protected:
nsresult GetSection(nsIDOMHTMLTableSectionElement** aSection);
nsresult GetTable(nsIDOMHTMLTableElement** aTable);
nsGenericHTMLContainerElement mInner;
GenericElementCollection* mCells;
};
#ifdef XXX_debugging
static
void DebugList(nsIDOMHTMLTableElement* aTable) {
nsIHTMLContent* content = nsnull;
nsresult result = aTable->QueryInterface(kIHTMLContentIID, (void**)&content);
if (NS_SUCCEEDED(result) && (nsnull != content)) {
nsIDocument* doc = nsnull;
result = content->GetDocument(doc);
if (NS_SUCCEEDED(result) && (nsnull != doc)) {
nsIContent* root = doc->GetRootContent();
if (root) {
root->List();
}
nsIPresShell* shell = doc->GetShellAt(0);
if (nsnull != shell) {
nsIFrame* rootFrame;
shell->GetRootFrame(rootFrame);
if (nsnull != rootFrame) {
rootFrame->List(stdout, 0);
}
}
NS_RELEASE(shell);
NS_RELEASE(doc);
}
NS_RELEASE(content);
}
}
#endif
nsresult
NS_NewHTMLTableRowElement(nsIHTMLContent** aInstancePtrResult, nsIAtom* aTag)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
nsIHTMLContent* it = new nsHTMLTableRowElement(aTag);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(kIHTMLContentIID, (void**) aInstancePtrResult);
}
nsHTMLTableRowElement::nsHTMLTableRowElement(nsIAtom* aTag)
{
NS_INIT_REFCNT();
mInner.Init(this, aTag);
mCells = nsnull;
}
nsHTMLTableRowElement::~nsHTMLTableRowElement()
{
if (nsnull != mCells) {
mCells->ParentDestroyed();
NS_RELEASE(mCells);
}
}
NS_IMPL_ADDREF(nsHTMLTableRowElement)
NS_IMPL_RELEASE(nsHTMLTableRowElement)
nsresult
nsHTMLTableRowElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
NS_IMPL_HTML_CONTENT_QUERY_INTERFACE(aIID, aInstancePtr, this)
if (aIID.Equals(kIDOMHTMLTableRowElementIID)) {
nsIDOMHTMLTableRowElement* tmp = this;
*aInstancePtr = (void*) tmp;
mRefCnt++;
return NS_OK;
}
return NS_NOINTERFACE;
}
nsresult
nsHTMLTableRowElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
{
nsHTMLTableRowElement* it = new nsHTMLTableRowElement(mInner.mTag);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
mInner.CopyInnerTo(this, &it->mInner, aDeep);
return it->QueryInterface(kIDOMNodeIID, (void**) aReturn);
}
// protected method
nsresult
nsHTMLTableRowElement::GetSection(nsIDOMHTMLTableSectionElement** aSection)
{
*aSection = nsnull;
if (nsnull == aSection) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsIDOMNode *sectionNode = nsnull;
nsresult result = GetParentNode(&sectionNode);
if (NS_SUCCEEDED(result) && (nsnull != sectionNode)) {
result = sectionNode->QueryInterface(kIDOMHTMLTableSectionElementIID, (void**)aSection);
NS_RELEASE(sectionNode);
}
return result;
}
// protected method
nsresult
nsHTMLTableRowElement::GetTable(nsIDOMHTMLTableElement** aTable)
{
*aTable = nsnull;
if (nsnull == aTable) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsIDOMNode *sectionNode = nsnull;
nsresult result = GetParentNode(&sectionNode);
if (NS_SUCCEEDED(result) && (nsnull != sectionNode)) {
nsIDOMNode *tableNode = nsnull;
result = sectionNode->GetParentNode(&tableNode);
if (NS_SUCCEEDED(result) && (nsnull != tableNode)) {
result = tableNode->QueryInterface(kIDOMHTMLTableElementIID, (void**)aTable);
NS_RELEASE(tableNode);
}
NS_RELEASE(sectionNode);
}
return result;
}
NS_IMETHODIMP
nsHTMLTableRowElement::GetRowIndex(PRInt32* aValue)
{
*aValue = -1;
nsIDOMHTMLTableElement* table = nsnull;
nsresult result = GetTable(&table);
if (NS_SUCCEEDED(result) && (nsnull != table)) {
nsIDOMHTMLCollection *rows = nsnull;
table->GetRows(&rows);
PRUint32 numRows;
rows->GetLength(&numRows);
PRBool found = PR_FALSE;
for (PRUint32 i = 0; (i < numRows) && !found; i++) {
nsIDOMNode *node = nsnull;
rows->Item(i, &node);
if (this == node) {
*aValue = i;
found = PR_TRUE;
}
NS_IF_RELEASE(node);
}
NS_RELEASE(rows);
NS_RELEASE(table);
}
return result;
}
// this tells the table to delete a row and then insert it in a different place. This will generate 2 reflows
// until things get fixed at a higher level (e.g. DOM batching).
NS_IMETHODIMP
nsHTMLTableRowElement::SetRowIndex(PRInt32 aValue)
{
PRInt32 oldIndex;
nsresult result = GetRowIndex(&oldIndex);
if ((-1 == oldIndex) || (oldIndex == aValue) || (NS_OK != result)) {
return result;
}
nsIDOMHTMLTableElement* table = nsnull;
result = GetTable(&table);
if (NS_FAILED(result) || (nsnull == table)) {
return result;
}
nsIDOMHTMLCollection *rows = nsnull;
table->GetRows(&rows);
PRUint32 numRowsU;
rows->GetLength(&numRowsU);
PRInt32 numRows = numRowsU; // numRows will be > 0 since this must be a row
// check if it really moves
if ( !(((0 == oldIndex) && (aValue <= 0)) || ((numRows-1 == oldIndex) && (aValue >= numRows-1)))) {
nsIDOMNode *section = nsnull;
nsIDOMNode* refRow = nsnull;
PRInt32 refIndex = aValue;
if (aValue < numRows) {
refIndex = 0;
} else {
refIndex = numRows-1;
}
rows->Item(refIndex, &refRow);
refRow->GetParentNode(&section);
AddRef(); // don't use NS_ADDREF_THIS
table->DeleteRow(oldIndex); // delete this from the table
nsIDOMNode *returnNode;
if (aValue >= numRows) {
section->AppendChild(this, &returnNode); // add this back into the table
} else {
section->InsertBefore(this, refRow, &returnNode); // add this back into the table
}
Release(); // from addref above, can't use NS_RELEASE
NS_RELEASE(section);
NS_RELEASE(refRow); // XXX is this right, check nsHTMLTableElement also
}
NS_RELEASE(rows);
NS_RELEASE(table);
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableRowElement::GetSectionRowIndex(PRInt32* aValue)
{
*aValue = -1;
nsIDOMHTMLTableSectionElement* section = nsnull;
nsresult result = GetSection(&section);
if (NS_SUCCEEDED(result) && (nsnull != section)) {
nsIDOMHTMLCollection *rows = nsnull;
section->GetRows(&rows);
PRUint32 numRows;
rows->GetLength(&numRows);
PRBool found = PR_FALSE;
for (PRUint32 i = 0; (i < numRows) && !found; i++) {
nsIDOMNode *node = nsnull;
rows->Item(i, &node);
if (this == node) {
*aValue = i;
found = PR_TRUE;
}
NS_IF_RELEASE(node);
}
NS_RELEASE(rows);
NS_RELEASE(section);
}
return NS_OK;
}
// this generates 2 reflows like SetRowIndex
NS_IMETHODIMP
nsHTMLTableRowElement::SetSectionRowIndex(PRInt32 aValue)
{
PRInt32 oldIndex;
nsresult result = GetRowIndex(&oldIndex);
if ((-1 == oldIndex) || (oldIndex == aValue) || (NS_OK != result)) {
return result;
}
nsIDOMHTMLTableSectionElement* section = nsnull;
result = GetSection(&section);
if (NS_FAILED(result) || (nsnull == section)) {
return result;
}
nsIDOMHTMLCollection *rows = nsnull;
section->GetRows(&rows);
PRUint32 numRowsU;
rows->GetLength(&numRowsU);
PRInt32 numRows = numRowsU;
// check if it really moves
if ( !(((0 == oldIndex) && (aValue <= 0)) || ((numRows-1 == oldIndex) && (aValue >= numRows-1)))) {
AddRef(); // don't use NS_ADDREF_THIS
section->DeleteRow(oldIndex); // delete this from the section
numRows--;
nsIDOMNode *returnNode;
if ((numRows <= 0) || (aValue >= numRows)) {
section->AppendChild(this, &returnNode); // add this back into the section
} else {
PRInt32 newIndex = aValue;
if (aValue <= 0) {
newIndex = 0;
} else if (aValue > oldIndex) {
newIndex--; // since this got removed before GetLength was called
}
nsIDOMNode *refNode;
rows->Item(newIndex, &refNode);
section->InsertBefore(this, refNode, &returnNode); // add this back into the section
NS_IF_RELEASE(refNode);
}
Release(); // from addref above, can't use NS_RELEASE
}
NS_RELEASE(rows);
NS_RELEASE(section);
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableRowElement::GetCells(nsIDOMHTMLCollection** aValue)
{
if (nsnull == mCells) {
mCells = new GenericElementCollection(this, nsHTMLAtoms::td);
NS_ADDREF(mCells); // this table's reference, released in the destructor
}
mCells->QueryInterface(kIDOMHTMLCollectionIID, (void **)aValue); // caller's addref
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableRowElement::SetCells(nsIDOMHTMLCollection* aValue)
{
nsIDOMHTMLCollection* cells;
GetCells(&cells);
PRUint32 numCells;
cells->GetLength(&numCells);
PRUint32 i;
for (i = 0; i < numCells; i++) {
DeleteCell(i);
}
aValue->GetLength(&numCells);
for (i = 0; i < numCells; i++) {
nsIDOMNode *node = nsnull;
cells->Item(i, &node);
nsIDOMNode* aReturn;
AppendChild(node, (nsIDOMNode**)&aReturn);
}
NS_RELEASE(cells);
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableRowElement::InsertCell(PRInt32 aIndex, nsIDOMHTMLElement** aValue)
{
*aValue = nsnull;
PRInt32 refIndex = (0 <= aIndex) ? aIndex : 0;
nsIDOMHTMLCollection *cells;
GetCells(&cells);
PRUint32 cellCount;
cells->GetLength(&cellCount);
if (cellCount <= PRUint32(aIndex)) {
refIndex = cellCount - 1; // refIndex will be -1 if there are no cells
}
// create the cell
nsIHTMLContent *cellContent = nsnull;
nsresult rv = NS_NewHTMLTableCellElement(&cellContent, nsHTMLAtoms::td);
if (NS_SUCCEEDED(rv) && (nsnull != cellContent)) {
nsIDOMNode *cellNode = nsnull;
rv = cellContent->QueryInterface(kIDOMNodeIID, (void **)&cellNode);
if (NS_SUCCEEDED(rv) && (nsnull != cellNode)) {
if (refIndex >= 0) {
nsIDOMNode *refCell;
cells->Item(refIndex, &refCell);
rv = InsertBefore(cellNode, refCell, (nsIDOMNode **)aValue);
} else {
rv = AppendChild(cellNode, (nsIDOMNode **)aValue);
}
NS_RELEASE(cellNode);
}
NS_RELEASE(cellContent);
}
NS_RELEASE(cells);
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableRowElement::DeleteCell(PRInt32 aValue)
{
nsIDOMHTMLCollection *cells;
GetCells(&cells);
nsIDOMNode *cell = nsnull;
cells->Item(aValue, &cell);
if (nsnull != cell) {
RemoveChild(cell, &cell);
}
NS_RELEASE(cells);
return NS_OK;
}
NS_IMPL_STRING_ATTR(nsHTMLTableRowElement, Align, align)
NS_IMPL_STRING_ATTR(nsHTMLTableRowElement, BgColor, bgcolor)
NS_IMPL_STRING_ATTR(nsHTMLTableRowElement, Ch, ch)
NS_IMPL_STRING_ATTR(nsHTMLTableRowElement, ChOff, choff)
NS_IMPL_STRING_ATTR(nsHTMLTableRowElement, VAlign, valign)
NS_IMETHODIMP
nsHTMLTableRowElement::StringToAttribute(nsIAtom* aAttribute,
const nsString& aValue,
nsHTMLValue& aResult)
{
/* ignore these attributes, stored simply as strings
ch
*/
/* attributes that resolve to integers with default=0*/
if (aAttribute == nsHTMLAtoms::choff) {
if (nsGenericHTMLElement::ParseValue(aValue, 0, aResult, eHTMLUnit_Integer)) {
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
/* attributes that resolve to integers or percents */
else if (aAttribute == nsHTMLAtoms::height) {
if (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) {
if (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::bgcolor) {
if (nsGenericHTMLElement::ParseColor(aValue, mInner.mDocument, 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
nsHTMLTableRowElement::AttributeToString(nsIAtom* aAttribute,
const nsHTMLValue& aValue,
nsString& aResult) const
{
/* ignore these attributes, stored already as strings
ch
*/
/* ignore attributes that are of standard types
choff, height, width, background, bgcolor
*/
if (aAttribute == nsHTMLAtoms::align) {
if (nsGenericHTMLElement::TableHAlignValueToString(aValue, 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);
}
// height: pixel
aAttributes->GetAttribute(nsHTMLAtoms::height, value);
if (value.GetUnit() == eHTMLUnit_Pixel) {
float p2t;
aPresContext->GetScaledPixelsToTwips(&p2t);
nsStylePosition* pos = (nsStylePosition*)
aContext->GetMutableStyleData(eStyleStruct_Position);
nscoord twips = NSIntPixelsToTwips(value.GetPixelValue(), p2t);
pos->mHeight.SetCoordValue(twips);
}
nsGenericHTMLElement::MapBackgroundAttributesInto(aAttributes, aContext, aPresContext);
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext, aPresContext);
}
}
NS_IMETHODIMP
nsHTMLTableRowElement::GetMappedAttributeImpact(const nsIAtom* aAttribute,
PRInt32& aHint) const
{
if ((aAttribute == nsHTMLAtoms::align) ||
(aAttribute == nsHTMLAtoms::valign) ||
(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
nsHTMLTableRowElement::GetAttributeMappingFunctions(nsMapAttributesFunc& aFontMapFunc,
nsMapAttributesFunc& aMapFunc) const
{
aFontMapFunc = nsnull;
aMapFunc = &MapAttributesInto;
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableRowElement::HandleDOMEvent(nsIPresContext& aPresContext,
nsEvent* aEvent,
nsIDOMEvent** aDOMEvent,
PRUint32 aFlags,
nsEventStatus& aEventStatus)
{
return mInner.HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
aFlags, aEventStatus);
}