197 lines
6.4 KiB
C++
197 lines
6.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIDOMHTMLPreElement.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsGenericHTMLElement.h"
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#include "nsHTMLAtoms.h"
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#include "nsStyleConsts.h"
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#include "nsPresContext.h"
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#include "nsMappedAttributes.h"
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#include "nsRuleData.h"
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#include "nsCSSStruct.h"
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// XXX wrap, variable, cols, tabstop
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class nsHTMLPreElement : public nsGenericHTMLElement,
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public nsIDOMHTMLPreElement
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{
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public:
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nsHTMLPreElement(nsINodeInfo *aNodeInfo);
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virtual ~nsHTMLPreElement();
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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// nsIDOMNode
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NS_FORWARD_NSIDOMNODE_NO_CLONENODE(nsGenericHTMLElement::)
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// nsIDOMElement
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NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
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// nsIDOMHTMLElement
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NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
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// nsIDOMHTMLPreElement
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NS_IMETHOD GetWidth(PRInt32* aWidth);
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NS_IMETHOD SetWidth(PRInt32 aWidth);
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virtual PRBool ParseAttribute(nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult);
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NS_IMETHOD_(PRBool) IsAttributeMapped(const nsIAtom* aAttribute) const;
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virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const;
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};
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NS_IMPL_NS_NEW_HTML_ELEMENT(Pre)
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nsHTMLPreElement::nsHTMLPreElement(nsINodeInfo *aNodeInfo)
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: nsGenericHTMLElement(aNodeInfo)
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{
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}
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nsHTMLPreElement::~nsHTMLPreElement()
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{
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}
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NS_IMPL_ADDREF_INHERITED(nsHTMLPreElement, nsGenericElement)
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NS_IMPL_RELEASE_INHERITED(nsHTMLPreElement, nsGenericElement)
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// QueryInterface implementation for nsHTMLPreElement
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NS_HTML_CONTENT_INTERFACE_MAP_BEGIN(nsHTMLPreElement, nsGenericHTMLElement)
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NS_INTERFACE_MAP_ENTRY(nsIDOMHTMLPreElement)
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NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(HTMLPreElement)
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NS_HTML_CONTENT_INTERFACE_MAP_END
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NS_IMPL_DOM_CLONENODE(nsHTMLPreElement)
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NS_IMPL_INT_ATTR(nsHTMLPreElement, Width, width)
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PRBool
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nsHTMLPreElement::ParseAttribute(nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult)
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{
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if (aAttribute == nsHTMLAtoms::cols) {
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return aResult.ParseIntWithBounds(aValue, 0);
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}
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if (aAttribute == nsHTMLAtoms::width) {
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return aResult.ParseIntWithBounds(aValue, 0);
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}
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return nsGenericHTMLElement::ParseAttribute(aAttribute, aValue, aResult);
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}
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static void
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MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
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nsRuleData* aData)
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{
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if (aData->mSID == eStyleStruct_Font) {
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// variable
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if (aAttributes->GetAttr(nsHTMLAtoms::variable))
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aData->mFontData->mFamily.SetStringValue(NS_LITERAL_STRING("serif"),
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eCSSUnit_String);
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}
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else if (aData->mSID == eStyleStruct_Position) {
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if (aData->mPositionData->mWidth.GetUnit() == eCSSUnit_Null) {
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// width: int (html4 attribute == nav4 cols)
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const nsAttrValue* value = aAttributes->GetAttr(nsHTMLAtoms::width);
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if (!value || value->Type() != nsAttrValue::eInteger) {
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// cols: int (nav4 attribute)
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value = aAttributes->GetAttr(nsHTMLAtoms::cols);
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}
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if (value && value->Type() == nsAttrValue::eInteger)
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aData->mPositionData->mWidth.SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Char);
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}
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}
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else if (aData->mSID == eStyleStruct_Text) {
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if (aData->mTextData->mWhiteSpace.GetUnit() == eCSSUnit_Null) {
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// wrap: empty
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if (aAttributes->GetAttr(nsHTMLAtoms::wrap))
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aData->mTextData->mWhiteSpace.SetIntValue(NS_STYLE_WHITESPACE_PRE_WRAP, eCSSUnit_Enumerated);
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// width: int (html4 attribute == nav4 cols)
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const nsAttrValue* value = aAttributes->GetAttr(nsHTMLAtoms::width);
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if (!value || value->Type() != nsAttrValue::eInteger) {
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// cols: int (nav4 attribute)
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value = aAttributes->GetAttr(nsHTMLAtoms::cols);
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}
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if (value && value->Type() == nsAttrValue::eInteger) {
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// Force wrap property on since we want to wrap at a width
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// boundary not just a newline.
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aData->mTextData->mWhiteSpace.SetIntValue(NS_STYLE_WHITESPACE_PRE_WRAP, eCSSUnit_Enumerated);
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}
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}
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}
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
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}
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NS_IMETHODIMP_(PRBool)
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nsHTMLPreElement::IsAttributeMapped(const nsIAtom* aAttribute) const
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{
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static const MappedAttributeEntry attributes[] = {
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{ &nsHTMLAtoms::variable },
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{ &nsHTMLAtoms::wrap },
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{ &nsHTMLAtoms::cols },
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{ &nsHTMLAtoms::width },
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{ nsnull },
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};
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static const MappedAttributeEntry* const map[] = {
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attributes,
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sCommonAttributeMap,
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};
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return FindAttributeDependence(aAttribute, map, NS_ARRAY_LENGTH(map));
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}
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nsMapRuleToAttributesFunc
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nsHTMLPreElement::GetAttributeMappingFunction() const
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{
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return &MapAttributesIntoRule;
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}
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