282 lines
7.8 KiB
C++
282 lines
7.8 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 "nsIDOMHTMLLinkElement.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 "nsIDOMStyleSheet.h"
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#include "nsIStyleSheet.h"
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#include "nsIStyleSheetLinkingElement.h"
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static NS_DEFINE_IID(kIDOMHTMLLinkElementIID, NS_IDOMHTMLLINKELEMENT_IID);
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static NS_DEFINE_IID(kIStyleSheetLinkingElementIID, NS_ISTYLESHEETLINKINGELEMENT_IID);
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static NS_DEFINE_IID(kIDOMStyleSheetIID, NS_IDOMSTYLESHEET_IID);
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class nsHTMLLinkElement : public nsIDOMHTMLLinkElement,
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public nsIScriptObjectOwner,
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public nsIDOMEventReceiver,
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public nsIHTMLContent,
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public nsIStyleSheetLinkingElement
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{
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public:
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nsHTMLLinkElement(nsIAtom* aTag);
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virtual ~nsHTMLLinkElement();
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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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// nsIDOMHTMLLinkElement
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NS_IMETHOD GetDisabled(PRBool* aDisabled);
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NS_IMETHOD SetDisabled(PRBool aDisabled);
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NS_IMETHOD GetCharset(nsString& aCharset);
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NS_IMETHOD SetCharset(const nsString& aCharset);
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NS_IMETHOD GetHref(nsString& aHref);
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NS_IMETHOD SetHref(const nsString& aHref);
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NS_IMETHOD GetHreflang(nsString& aHreflang);
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NS_IMETHOD SetHreflang(const nsString& aHreflang);
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NS_IMETHOD GetMedia(nsString& aMedia);
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NS_IMETHOD SetMedia(const nsString& aMedia);
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NS_IMETHOD GetRel(nsString& aRel);
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NS_IMETHOD SetRel(const nsString& aRel);
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NS_IMETHOD GetRev(nsString& aRev);
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NS_IMETHOD SetRev(const nsString& aRev);
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NS_IMETHOD GetTarget(nsString& aTarget);
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NS_IMETHOD SetTarget(const nsString& aTarget);
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NS_IMETHOD GetType(nsString& aType);
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NS_IMETHOD SetType(const nsString& aType);
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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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// nsIStyleSheetLinkingElement
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NS_IMETHOD SetStyleSheet(nsIStyleSheet* aStyleSheet);
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NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aStyleSheet);
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protected:
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nsGenericHTMLLeafElement mInner;
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nsIStyleSheet* mStyleSheet;
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};
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nsresult
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NS_NewHTMLLinkElement(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 nsHTMLLinkElement(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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nsHTMLLinkElement::nsHTMLLinkElement(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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mStyleSheet = nsnull;
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}
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nsHTMLLinkElement::~nsHTMLLinkElement()
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{
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NS_IF_RELEASE(mStyleSheet);
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}
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NS_IMPL_ADDREF(nsHTMLLinkElement)
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NS_IMPL_RELEASE(nsHTMLLinkElement)
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nsresult
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nsHTMLLinkElement::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(kIDOMHTMLLinkElementIID)) {
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nsIDOMHTMLLinkElement* tmp = this;
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*aInstancePtr = (void*) tmp;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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if (aIID.Equals(kIStyleSheetLinkingElementIID)) {
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nsIStyleSheetLinkingElement* tmp = this;
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*aInstancePtr = (void*) tmp;
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NS_ADDREF_THIS();
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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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nsHTMLLinkElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
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{
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nsHTMLLinkElement* it = new nsHTMLLinkElement(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, aDeep);
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return it->QueryInterface(kIDOMNodeIID, (void**) aReturn);
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}
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NS_IMETHODIMP
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nsHTMLLinkElement::GetDisabled(PRBool* aDisabled)
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{
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nsresult result = NS_OK;
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if (nsnull != mStyleSheet) {
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nsIDOMStyleSheet* ss;
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result = mStyleSheet->QueryInterface(kIDOMStyleSheetIID, (void**)&ss);
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if (NS_OK == result) {
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result = ss->GetDisabled(aDisabled);
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NS_RELEASE(ss);
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}
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}
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else {
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*aDisabled = PR_FALSE;
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}
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return result;
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}
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NS_IMETHODIMP
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nsHTMLLinkElement::SetDisabled(PRBool aDisabled)
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{
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nsresult result = NS_OK;
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if (nsnull != mStyleSheet) {
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nsIDOMStyleSheet* ss;
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result = mStyleSheet->QueryInterface(kIDOMStyleSheetIID, (void**)&ss);
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if (NS_OK == result) {
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result = ss->SetDisabled(aDisabled);
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NS_RELEASE(ss);
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}
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}
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return result;
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}
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NS_IMPL_STRING_ATTR(nsHTMLLinkElement, Charset, charset)
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NS_IMPL_STRING_ATTR(nsHTMLLinkElement, Href, href)
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NS_IMPL_STRING_ATTR(nsHTMLLinkElement, Hreflang, hreflang)
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NS_IMPL_STRING_ATTR(nsHTMLLinkElement, Media, media)
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NS_IMPL_STRING_ATTR(nsHTMLLinkElement, Rel, rel)
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NS_IMPL_STRING_ATTR(nsHTMLLinkElement, Rev, rev)
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NS_IMPL_STRING_ATTR(nsHTMLLinkElement, Target, target)
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NS_IMPL_STRING_ATTR(nsHTMLLinkElement, Type, type)
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NS_IMETHODIMP
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nsHTMLLinkElement::SetStyleSheet(nsIStyleSheet* aStyleSheet)
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{
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NS_IF_RELEASE(mStyleSheet);
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mStyleSheet = aStyleSheet;
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NS_IF_ADDREF(mStyleSheet);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLLinkElement::GetStyleSheet(nsIStyleSheet*& aStyleSheet)
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{
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aStyleSheet = mStyleSheet;
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NS_IF_ADDREF(aStyleSheet);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLLinkElement::StringToAttribute(nsIAtom* aAttribute,
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const nsString& aValue,
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nsHTMLValue& aResult)
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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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nsHTMLLinkElement::AttributeToString(nsIAtom* aAttribute,
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const nsHTMLValue& aValue,
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nsString& aResult) const
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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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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext, aPresContext);
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}
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NS_IMETHODIMP
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nsHTMLLinkElement::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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nsHTMLLinkElement::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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NS_IMETHODIMP
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nsHTMLLinkElement::GetStyleHintForAttributeChange(
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const nsIAtom* aAttribute,
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PRInt32 *aHint) const
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{
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nsGenericHTMLElement::GetStyleHintForCommonAttributes(this, aAttribute, aHint);
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return NS_OK;
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}
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