324 lines
9.3 KiB
C++
324 lines
9.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsIDOMHTMLElement.h"
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#include "nsIScriptObjectOwner.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsIHTMLContent.h"
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#include "nsGenericHTMLElement.h"
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#include "nsHTMLAtoms.h"
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#include "nsHTMLIIDs.h"
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#include "nsIStyleContext.h"
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#include "nsIMutableStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsIPresContext.h"
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#include "nsIPresShell.h"
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#include "nsIHTMLAttributes.h"
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#include "nsIJSScriptObject.h"
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#include "nsSize.h"
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#include "nsIDocument.h"
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#include "nsIDOMWindowInternal.h"
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#include "nsIDOMDocument.h"
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#include "nsIScriptContext.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIURL.h"
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#include "nsIIOService.h"
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#include "nsIURL.h"
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#include "nsIServiceManager.h"
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#include "nsNetUtil.h"
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#include "nsLayoutUtils.h"
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#include "nsIWebShell.h"
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#include "nsIFrame.h"
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#include "nsLayoutAtoms.h"
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// XXX nav attrs: suppress
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class nsHTMLSpacerElement : public nsGenericHTMLLeafElement,
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public nsIDOMHTMLElement
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{
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public:
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nsHTMLSpacerElement();
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virtual ~nsHTMLSpacerElement();
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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// nsIDOMNode
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NS_FORWARD_IDOMNODE_NO_CLONENODE(nsGenericHTMLLeafElement::)
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// nsIDOMElement
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NS_FORWARD_IDOMELEMENT(nsGenericHTMLLeafElement::)
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// nsIDOMHTMLElement
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NS_FORWARD_IDOMHTMLELEMENT(nsGenericHTMLLeafElement::)
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NS_IMETHOD StringToAttribute(nsIAtom* aAttribute,
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const nsAReadableString& aValue,
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nsHTMLValue& aResult);
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NS_IMETHOD AttributeToString(nsIAtom* aAttribute,
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const nsHTMLValue& aValue,
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nsAWritableString& aResult) const;
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NS_IMETHOD GetAttributeMappingFunctions(nsMapAttributesFunc& aFontMapFunc,
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nsMapAttributesFunc& aMapFunc) const;
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NS_IMETHOD GetMappedAttributeImpact(const nsIAtom* aAttribute,
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PRInt32& aHint) const;
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NS_IMETHOD SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const;
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};
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nsresult
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NS_NewHTMLSpacerElement(nsIHTMLContent** aInstancePtrResult,
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nsINodeInfo *aNodeInfo)
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{
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NS_ENSURE_ARG_POINTER(aInstancePtrResult);
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nsHTMLSpacerElement* it = new nsHTMLSpacerElement();
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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nsresult rv = it->Init(aNodeInfo);
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if (NS_FAILED(rv)) {
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delete it;
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return rv;
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}
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*aInstancePtrResult = NS_STATIC_CAST(nsIHTMLContent *, it);
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NS_ADDREF(*aInstancePtrResult);
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return NS_OK;
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}
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nsHTMLSpacerElement::nsHTMLSpacerElement()
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{
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}
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nsHTMLSpacerElement::~nsHTMLSpacerElement()
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{
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}
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NS_IMPL_ADDREF_INHERITED(nsHTMLSpacerElement, nsGenericElement);
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NS_IMPL_RELEASE_INHERITED(nsHTMLSpacerElement, nsGenericElement);
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NS_IMPL_HTMLCONTENT_QI0(nsHTMLSpacerElement, nsGenericHTMLLeafElement);
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nsresult
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nsHTMLSpacerElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
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{
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NS_ENSURE_ARG_POINTER(aReturn);
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*aReturn = nsnull;
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nsHTMLSpacerElement* it = new nsHTMLSpacerElement();
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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nsCOMPtr<nsIDOMNode> kungFuDeathGrip(it);
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nsresult rv = it->Init(mNodeInfo);
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if (NS_FAILED(rv))
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return rv;
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CopyInnerTo(this, it, aDeep);
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*aReturn = NS_STATIC_CAST(nsIDOMNode *, it);
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NS_ADDREF(*aReturn);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLSpacerElement::StringToAttribute(nsIAtom* aAttribute,
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const nsAReadableString& aValue,
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nsHTMLValue& aResult)
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{
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if (aAttribute == nsHTMLAtoms::size) {
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if (ParseValue(aValue, 0, aResult, eHTMLUnit_Pixel)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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else if (aAttribute == nsHTMLAtoms::align) {
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if (ParseAlignValue(aValue, aResult)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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else if ((aAttribute == nsHTMLAtoms::width) ||
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(aAttribute == nsHTMLAtoms::height)) {
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if (ParseValueOrPercent(aValue, aResult, eHTMLUnit_Pixel)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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return NS_CONTENT_ATTR_NOT_THERE;
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}
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NS_IMETHODIMP
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nsHTMLSpacerElement::AttributeToString(nsIAtom* aAttribute,
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const nsHTMLValue& aValue,
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nsAWritableString& aResult) const
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{
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if (aAttribute == nsHTMLAtoms::align) {
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if (eHTMLUnit_Enumerated == aValue.GetUnit()) {
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AlignValueToString(aValue, aResult);
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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return nsGenericHTMLLeafElement::AttributeToString(aAttribute, aValue,
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aResult);
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}
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static void
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MapAttributesInto(const nsIHTMLMappedAttributes* aAttributes,
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nsIMutableStyleContext* aContext,
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nsIPresContext* aPresContext)
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{
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NS_PRECONDITION(aContext, "no style context");
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NS_PRECONDITION(aPresContext, "no pres context");
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if (aAttributes && aPresContext && aContext) {
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nsHTMLValue value;
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nsStyleDisplay* display = (nsStyleDisplay*)
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aContext->GetMutableStyleData(eStyleStruct_Display);
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nsStylePosition* position = (nsStylePosition*)
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aContext->GetMutableStyleData(eStyleStruct_Position);
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aAttributes->GetAttribute(nsHTMLAtoms::align, value);
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if (eHTMLUnit_Enumerated == value.GetUnit()) {
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switch (value.GetIntValue()) {
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case NS_STYLE_TEXT_ALIGN_LEFT:
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display->mFloats = NS_STYLE_FLOAT_LEFT;
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break;
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case NS_STYLE_TEXT_ALIGN_RIGHT:
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display->mFloats = NS_STYLE_FLOAT_RIGHT;
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break;
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default:
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break;
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}
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}
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nsGenericHTMLElement::MapImageAttributesInto(aAttributes, aContext,
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aPresContext);
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float p2t;
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aPresContext->GetScaledPixelsToTwips(&p2t);
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PRBool typeIsBlock = PR_FALSE;
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aAttributes->GetAttribute(nsHTMLAtoms::type, value);
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if (eHTMLUnit_String == value.GetUnit()) {
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nsAutoString tmp;
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value.GetStringValue(tmp);
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if (tmp.EqualsIgnoreCase("line") ||
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tmp.EqualsIgnoreCase("vert") ||
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tmp.EqualsIgnoreCase("vertical") ||
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tmp.EqualsIgnoreCase("block")) {
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// This is not strictly 100% compatible: if the spacer is given
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// a width of zero then it is basically ignored.
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display->mDisplay = NS_STYLE_DISPLAY_BLOCK;
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if (tmp.EqualsIgnoreCase("block")) {
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typeIsBlock = PR_TRUE;
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}
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}
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}
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if (typeIsBlock) {
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// width: value
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aAttributes->GetAttribute(nsHTMLAtoms::width, value);
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if (value.GetUnit() == eHTMLUnit_Pixel) {
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nscoord twips = NSIntPixelsToTwips(value.GetPixelValue(), p2t);
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position->mWidth.SetCoordValue(twips);
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}
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else if (value.GetUnit() == eHTMLUnit_Percent) {
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position->mWidth.SetPercentValue(value.GetPercentValue());
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}
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// height: value
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aAttributes->GetAttribute(nsHTMLAtoms::height, value);
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if (value.GetUnit() == eHTMLUnit_Pixel) {
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nscoord twips = NSIntPixelsToTwips(value.GetPixelValue(), p2t);
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position->mHeight.SetCoordValue(twips);
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}
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else if (value.GetUnit() == eHTMLUnit_Percent) {
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position->mHeight.SetPercentValue(value.GetPercentValue());
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}
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}
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else
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{
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// size: value
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aAttributes->GetAttribute(nsHTMLAtoms::size, value);
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if (value.GetUnit() == eHTMLUnit_Pixel) {
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nscoord twips = NSIntPixelsToTwips(value.GetPixelValue(), p2t);
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position->mWidth.SetCoordValue(twips);
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}
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}
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}
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext,
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aPresContext);
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}
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NS_IMETHODIMP
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nsHTMLSpacerElement::GetMappedAttributeImpact(const nsIAtom* aAttribute,
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PRInt32& aHint) const
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{
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if ((aAttribute == nsHTMLAtoms::usemap) ||
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(aAttribute == nsHTMLAtoms::ismap)) {
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aHint = NS_STYLE_HINT_FRAMECHANGE;
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}
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else if (aAttribute == nsHTMLAtoms::align) {
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aHint = NS_STYLE_HINT_REFLOW;
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}
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else if (!GetCommonMappedAttributesImpact(aAttribute, aHint)) {
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if (!GetImageMappedAttributesImpact(aAttribute, aHint)) {
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if (!GetImageBorderAttributeImpact(aAttribute, aHint)) {
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aHint = NS_STYLE_HINT_CONTENT;
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}
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLSpacerElement::GetAttributeMappingFunctions(nsMapAttributesFunc& aFontMapFunc,
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nsMapAttributesFunc& aMapFunc) const
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{
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aFontMapFunc = nsnull;
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aMapFunc = &MapAttributesInto;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLSpacerElement::SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const
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{
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*aResult = sizeof(*this) + BaseSizeOf(aSizer);
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return NS_OK;
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}
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