Mozilla/mozilla/layout/html/content/src/nsHTMLTableColElement.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

342 lines
10 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 "nsIDOMHTMLTableColElement.h"
#include "nsIHTMLTableColElement.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(kIDOMHTMLTableColElementIID, NS_IDOMHTMLTABLECOLELEMENT_IID);
static NS_DEFINE_IID(kIHTMLTableColElementIID, NS_IHTMLTABLECOLELEMENT_IID);
class nsHTMLTableColElement : public nsIDOMHTMLTableColElement,
public nsIHTMLTableColElement,
public nsIScriptObjectOwner,
public nsIDOMEventReceiver,
public nsIHTMLContent
{
public:
nsHTMLTableColElement(nsIAtom* aTag);
virtual ~nsHTMLTableColElement();
// 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)
// nsIDOMHTMLTableColElement
NS_IMETHOD GetAlign(nsString& aAlign);
NS_IMETHOD SetAlign(const nsString& aAlign);
NS_IMETHOD GetCh(nsString& aCh);
NS_IMETHOD SetCh(const nsString& aCh);
NS_IMETHOD GetChOff(nsString& aChOff);
NS_IMETHOD SetChOff(const nsString& aChOff);
NS_IMETHOD GetSpan(PRInt32* aSpan);
NS_IMETHOD SetSpan(PRInt32 aSpan);
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_GENERIC(mInner)
// nsIHTMLTableColElement
NS_IMETHOD GetSpanValue(PRInt32* aSpan);
protected:
nsGenericHTMLContainerElement mInner;
};
nsresult
NS_NewHTMLTableColElement(nsIHTMLContent** aInstancePtrResult, nsIAtom* aTag)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
nsIHTMLContent* it = new nsHTMLTableColElement(aTag);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(kIHTMLContentIID, (void**) aInstancePtrResult);
}
nsHTMLTableColElement::nsHTMLTableColElement(nsIAtom* aTag)
{
NS_INIT_REFCNT();
mInner.Init(this, aTag);
}
nsHTMLTableColElement::~nsHTMLTableColElement()
{
}
NS_IMPL_ADDREF(nsHTMLTableColElement)
NS_IMPL_RELEASE(nsHTMLTableColElement)
nsresult
nsHTMLTableColElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
NS_IMPL_HTML_CONTENT_QUERY_INTERFACE(aIID, aInstancePtr, this)
if (aIID.Equals(kIDOMHTMLTableColElementIID)) {
nsIDOMHTMLTableColElement* tmp = this;
*aInstancePtr = (void*) tmp;
mRefCnt++;
return NS_OK;
}
if (aIID.Equals(kIHTMLTableColElementIID)) {
nsIHTMLTableColElement* tmp = this;
*aInstancePtr = (void*) tmp;
mRefCnt++;
return NS_OK;
}
return NS_NOINTERFACE;
}
nsresult
nsHTMLTableColElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
{
nsHTMLTableColElement* it = new nsHTMLTableColElement(mInner.mTag);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
mInner.CopyInnerTo(this, &it->mInner, aDeep);
return it->QueryInterface(kIDOMNodeIID, (void**) aReturn);
}
NS_IMPL_STRING_ATTR(nsHTMLTableColElement, Align, align)
NS_IMPL_STRING_ATTR(nsHTMLTableColElement, Ch, ch)
NS_IMPL_STRING_ATTR(nsHTMLTableColElement, ChOff, choff)
NS_IMPL_INT_ATTR(nsHTMLTableColElement, Span, span)
NS_IMPL_STRING_ATTR(nsHTMLTableColElement, VAlign, valign)
NS_IMPL_STRING_ATTR(nsHTMLTableColElement, Width, width)
NS_IMETHODIMP
nsHTMLTableColElement::StringToAttribute(nsIAtom* aAttribute,
const nsString& aValue,
nsHTMLValue& aResult)
{
/* ignore these attributes, stored simply as strings
ch
*/
/* attributes that resolve to integers */
if (aAttribute == nsHTMLAtoms::choff) {
if (nsGenericHTMLElement::ParseValue(aValue, 0, aResult, eHTMLUnit_Integer)) {
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
else if (aAttribute == nsHTMLAtoms::span) {
if (nsGenericHTMLElement::ParseValue(aValue, 1, aResult, eHTMLUnit_Integer)) {
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::valign) {
if (nsGenericHTMLElement::ParseTableVAlignValue(aValue, aResult)) {
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
return NS_CONTENT_ATTR_NOT_THERE;
}
NS_IMETHODIMP
nsHTMLTableColElement::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, span
*/
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;
}
}
else if (aAttribute == nsHTMLAtoms::width) {
if (nsGenericHTMLElement::ValueOrPercentOrProportionalToString(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;
nsStyleText* textStyle = nsnull;
// width
aAttributes->GetAttribute(nsHTMLAtoms::width, value);
if (value.GetUnit() != eHTMLUnit_Null) {
nsStylePosition* position = (nsStylePosition*)
aContext->GetMutableStyleData(eStyleStruct_Position);
switch (value.GetUnit()) {
case eHTMLUnit_Percent:
position->mWidth.SetPercentValue(value.GetPercentValue());
break;
case eHTMLUnit_Pixel:
float p2t;
aPresContext->GetScaledPixelsToTwips(&p2t);
position->mWidth.SetCoordValue(NSIntPixelsToTwips(value.GetPixelValue(), p2t));
break;
case eHTMLUnit_Proportional:
position->mWidth.SetIntValue(value.GetIntValue(), eStyleUnit_Proportional);
break;
default:
break;
}
}
// 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);
}
// span: int
aAttributes->GetAttribute(nsHTMLAtoms::span, value);
if (value.GetUnit() == eHTMLUnit_Integer)
{
nsStyleTable *tableStyle = (nsStyleTable*)aContext->GetMutableStyleData(eStyleStruct_Table);
tableStyle->mSpan = value.GetIntValue();
}
}
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext, aPresContext);
}
NS_IMETHODIMP
nsHTMLTableColElement::GetMappedAttributeImpact(const nsIAtom* aAttribute,
PRInt32& aHint) const
{
if ((aAttribute == nsHTMLAtoms::width) ||
(aAttribute == nsHTMLAtoms::align) ||
(aAttribute == nsHTMLAtoms::valign) ||
(aAttribute == nsHTMLAtoms::span)) {
aHint = NS_STYLE_HINT_REFLOW;
}
else if (! nsGenericHTMLElement::GetCommonMappedAttributesImpact(aAttribute, aHint)) {
aHint = NS_STYLE_HINT_CONTENT;
}
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableColElement::GetAttributeMappingFunctions(nsMapAttributesFunc& aFontMapFunc,
nsMapAttributesFunc& aMapFunc) const
{
aFontMapFunc = nsnull;
aMapFunc = &MapAttributesInto;
return NS_OK;
}
NS_IMETHODIMP
nsHTMLTableColElement::HandleDOMEvent(nsIPresContext& aPresContext,
nsEvent* aEvent,
nsIDOMEvent** aDOMEvent,
PRUint32 aFlags,
nsEventStatus& aEventStatus)
{
return mInner.HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
aFlags, aEventStatus);
}
NS_METHOD nsHTMLTableColElement::GetSpanValue(PRInt32* aSpan)
{
if (nsnull!=aSpan)
{
PRInt32 span=-1;
GetSpan(&span);
if (-1==span)
span=1; // the default;
*aSpan = span;
}
return NS_OK;
}