271 lines
9.1 KiB
C++
271 lines
9.1 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 License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* 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 Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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#include "nsIDOMHTMLImageElement.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 "nsStyleConsts.h"
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#include "nsIPresContext.h"
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#include "nsIHTMLAttributes.h"
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// XXX nav attrs: suppress
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static NS_DEFINE_IID(kIDOMHTMLImageElementIID, NS_IDOMHTMLIMAGEELEMENT_IID);
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class nsHTMLImageElement : public nsIDOMHTMLImageElement,
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public nsIScriptObjectOwner,
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public nsIDOMEventReceiver,
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public nsIHTMLContent
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{
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public:
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nsHTMLImageElement(nsIAtom* aTag);
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~nsHTMLImageElement();
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// nsISupports
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NS_DECL_ISUPPORTS
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// nsIDOMNode
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NS_IMPL_IDOMNODE_USING_GENERIC(mInner)
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// nsIDOMElement
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NS_IMPL_IDOMELEMENT_USING_GENERIC(mInner)
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// nsIDOMHTMLElement
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NS_IMPL_IDOMHTMLELEMENT_USING_GENERIC(mInner)
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// nsIDOMHTMLImageElement
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NS_IMETHOD GetLowSrc(nsString& aLowSrc);
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NS_IMETHOD SetLowSrc(const nsString& aLowSrc);
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NS_IMETHOD GetName(nsString& aName);
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NS_IMETHOD SetName(const nsString& aName);
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NS_IMETHOD GetAlign(nsString& aAlign);
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NS_IMETHOD SetAlign(const nsString& aAlign);
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NS_IMETHOD GetAlt(nsString& aAlt);
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NS_IMETHOD SetAlt(const nsString& aAlt);
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NS_IMETHOD GetBorder(nsString& aBorder);
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NS_IMETHOD SetBorder(const nsString& aBorder);
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NS_IMETHOD GetHeight(nsString& aHeight);
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NS_IMETHOD SetHeight(const nsString& aHeight);
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NS_IMETHOD GetHspace(nsString& aHspace);
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NS_IMETHOD SetHspace(const nsString& aHspace);
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NS_IMETHOD GetIsMap(PRBool* aIsMap);
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NS_IMETHOD SetIsMap(PRBool aIsMap);
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NS_IMETHOD GetLongDesc(nsString& aLongDesc);
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NS_IMETHOD SetLongDesc(const nsString& aLongDesc);
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NS_IMETHOD GetSrc(nsString& aSrc);
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NS_IMETHOD SetSrc(const nsString& aSrc);
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NS_IMETHOD GetUseMap(nsString& aUseMap);
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NS_IMETHOD SetUseMap(const nsString& aUseMap);
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NS_IMETHOD GetVspace(nsString& aVspace);
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NS_IMETHOD SetVspace(const nsString& aVspace);
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NS_IMETHOD GetWidth(nsString& aWidth);
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NS_IMETHOD SetWidth(const nsString& aWidth);
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// nsIScriptObjectOwner
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NS_IMPL_ISCRIPTOBJECTOWNER_USING_GENERIC(mInner)
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// nsIDOMEventReceiver
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NS_IMPL_IDOMEVENTRECEIVER_USING_GENERIC(mInner)
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// nsIContent
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NS_IMPL_ICONTENT_USING_GENERIC(mInner)
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// nsIHTMLContent
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NS_IMPL_IHTMLCONTENT_USING_GENERIC(mInner)
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protected:
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nsGenericHTMLLeafElement mInner;
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};
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nsresult
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NS_NewHTMLImageElement(nsIHTMLContent** aInstancePtrResult, nsIAtom* aTag)
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{
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NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
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if (nsnull == aInstancePtrResult) {
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return NS_ERROR_NULL_POINTER;
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}
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nsIHTMLContent* it = new nsHTMLImageElement(aTag);
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if (nsnull == it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return it->QueryInterface(kIHTMLContentIID, (void**) aInstancePtrResult);
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}
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nsHTMLImageElement::nsHTMLImageElement(nsIAtom* aTag)
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{
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NS_INIT_REFCNT();
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mInner.Init(this, aTag);
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}
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nsHTMLImageElement::~nsHTMLImageElement()
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{
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}
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NS_IMPL_ADDREF(nsHTMLImageElement)
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NS_IMPL_RELEASE(nsHTMLImageElement)
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nsresult
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nsHTMLImageElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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NS_IMPL_HTML_CONTENT_QUERY_INTERFACE(aIID, aInstancePtr, this)
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if (aIID.Equals(kIDOMHTMLImageElementIID)) {
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nsIDOMHTMLImageElement* tmp = this;
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*aInstancePtr = (void*) tmp;
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mRefCnt++;
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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nsresult
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nsHTMLImageElement::CloneNode(nsIDOMNode** aReturn)
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{
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nsHTMLImageElement* it = new nsHTMLImageElement(mInner.mTag);
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if (nsnull == it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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mInner.CopyInnerTo(this, &it->mInner);
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return it->QueryInterface(kIDOMNodeIID, (void**) aReturn);
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}
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, LowSrc, lowsrc, eSetAttrNotify_None)
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, Name, name, eSetAttrNotify_Restart)
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, Align, align, eSetAttrNotify_Reflow)
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, Alt, alt, eSetAttrNotify_None)
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, Border, border, eSetAttrNotify_Reflow)
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, Height, height, eSetAttrNotify_Reflow)
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, Hspace, hspace, eSetAttrNotify_Reflow)
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NS_IMPL_BOOL_ATTR(nsHTMLImageElement, IsMap, ismap, eSetAttrNotify_None)
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, LongDesc, longdesc, eSetAttrNotify_None)
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, Src, src, eSetAttrNotify_Render)
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, UseMap, usemap, eSetAttrNotify_None)
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, Vspace, vspace, eSetAttrNotify_Reflow)
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NS_IMPL_STRING_ATTR(nsHTMLImageElement, Width, width, eSetAttrNotify_Reflow)
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NS_IMETHODIMP
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nsHTMLImageElement::StringToAttribute(nsIAtom* aAttribute,
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const nsString& aValue,
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nsHTMLValue& aResult)
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{
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if (aAttribute == nsHTMLAtoms::align) {
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if (nsGenericHTMLElement::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::ismap) {
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aResult.SetEmptyValue();
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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if ((aAttribute == nsHTMLAtoms::usemap) ||
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(aAttribute == nsHTMLAtoms::src) ||
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(aAttribute == nsHTMLAtoms::lowsrc)) {
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nsAutoString tmp(aValue);
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tmp.StripWhitespace();
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aResult.SetStringValue(tmp);
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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else if (nsGenericHTMLElement::ParseImageAttribute(aAttribute,
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aValue, aResult)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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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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nsHTMLImageElement::AttributeToString(nsIAtom* aAttribute,
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nsHTMLValue& aValue,
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nsString& 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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nsGenericHTMLElement::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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else if (nsGenericHTMLElement::ImageAttributeToString(aAttribute,
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aValue, aResult)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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return mInner.AttributeToString(aAttribute, aValue, aResult);
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}
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static void
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MapAttributesInto(nsIHTMLAttributes* aAttributes,
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nsIStyleContext* aContext,
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nsIPresContext* aPresContext)
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{
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if (nsnull != aAttributes) {
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nsHTMLValue value;
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aAttributes->GetAttribute(nsHTMLAtoms::align, value);
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if (value.GetUnit() == eHTMLUnit_Enumerated) {
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PRUint8 align = value.GetIntValue();
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nsStyleDisplay* display = (nsStyleDisplay*)
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aContext->GetMutableStyleData(eStyleStruct_Display);
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nsStyleText* text = (nsStyleText*)
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aContext->GetMutableStyleData(eStyleStruct_Text);
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nsStyleSpacing* spacing = (nsStyleSpacing*)
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aContext->GetMutableStyleData(eStyleStruct_Spacing);
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float p2t = aPresContext->GetPixelsToTwips();
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nsStyleCoord three(NSIntPixelsToTwips(3, p2t));
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switch (align) {
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case NS_STYLE_TEXT_ALIGN_LEFT:
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display->mFloats = NS_STYLE_FLOAT_LEFT;
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spacing->mMargin.SetLeft(three);
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spacing->mMargin.SetRight(three);
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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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spacing->mMargin.SetLeft(three);
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spacing->mMargin.SetRight(three);
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break;
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default:
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text->mVerticalAlign.SetIntValue(align, eStyleUnit_Enumerated);
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break;
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}
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}
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}
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nsGenericHTMLElement::MapImageAttributesInto(aAttributes, aContext, aPresContext);
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nsGenericHTMLElement::MapImageBorderAttributesInto(aAttributes, aContext, aPresContext, nsnull);
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext, aPresContext);
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}
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NS_IMETHODIMP
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nsHTMLImageElement::GetAttributeMappingFunction(nsMapAttributesFunc& aMapFunc) const
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{
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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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nsHTMLImageElement::HandleDOMEvent(nsIPresContext& aPresContext,
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nsEvent* aEvent,
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nsIDOMEvent** aDOMEvent,
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PRUint32 aFlags,
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nsEventStatus& aEventStatus)
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{
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return mInner.HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
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aFlags, aEventStatus);
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}
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