296 lines
8.7 KiB
C++
296 lines
8.7 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 "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 "nsLayoutAtoms.h"
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#include "nsHTMLAtoms.h"
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#include "nsIEventListenerManager.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsDOMEventsIIDs.h"
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#include "nsIDocument.h"
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#include "nsIHTMLStyleSheet.h"
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#include "nsIHTMLContentContainer.h"
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#include "nsIHTMLAttributes.h"
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class nsHTMLUnknownElement : public nsGenericHTMLContainerElement,
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public nsIDOMHTMLElement
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{
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public:
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nsHTMLUnknownElement();
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virtual ~nsHTMLUnknownElement();
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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(nsGenericHTMLContainerElement::)
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// nsIDOMElement
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NS_FORWARD_IDOMELEMENT(nsGenericHTMLContainerElement::)
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// nsIDOMHTMLElement
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NS_FORWARD_IDOMHTMLELEMENT(nsGenericHTMLContainerElement::)
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NS_IMETHOD SetAttribute(PRInt32 aNameSpaceID, nsIAtom* aName,
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const nsAReadableString& aValue, PRBool aNotify);
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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_NewHTMLUnknownElement(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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nsHTMLUnknownElement* it = new nsHTMLUnknownElement();
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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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nsHTMLUnknownElement::nsHTMLUnknownElement()
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{
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}
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nsHTMLUnknownElement::~nsHTMLUnknownElement()
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{
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}
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NS_IMPL_ADDREF_INHERITED(nsHTMLUnknownElement, nsGenericElement)
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NS_IMPL_RELEASE_INHERITED(nsHTMLUnknownElement, nsGenericElement)
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NS_IMPL_HTMLCONTENT_QI0(nsHTMLUnknownElement,
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nsGenericHTMLContainerElement);
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nsresult
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nsHTMLUnknownElement::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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nsHTMLUnknownElement* it = new nsHTMLUnknownElement();
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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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static nsIHTMLStyleSheet* GetAttrStyleSheet(nsIDocument* aDocument)
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{
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nsIHTMLStyleSheet *sheet;
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if (aDocument) {
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nsCOMPtr<nsIHTMLContentContainer> container(do_QueryInterface(aDocument));
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container->GetAttributeStyleSheet(&sheet);
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}
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NS_ASSERTION(nsnull != sheet, "can't get attribute style sheet");
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return sheet;
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}
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static nsresult
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EnsureWritableAttributes(nsIHTMLContent* aContent,
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nsIHTMLAttributes*& aAttributes, PRBool aCreate)
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{
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nsresult result = NS_OK;
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if (!aAttributes) {
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if (PR_TRUE == aCreate) {
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result = NS_NewHTMLAttributes(&aAttributes);
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}
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}
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return result;
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}
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static void ReleaseAttributes(nsIHTMLAttributes*& aAttributes)
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{
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// aAttributes->ReleaseContentRef();
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NS_RELEASE(aAttributes);
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}
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NS_IMETHODIMP
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nsHTMLUnknownElement::SetAttribute(PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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const nsAReadableString& aValue,
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PRBool aNotify)
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{
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nsresult result = NS_OK;
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NS_ASSERTION((kNameSpaceID_HTML == aNameSpaceID) ||
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(kNameSpaceID_None == aNameSpaceID) ||
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(kNameSpaceID_Unknown == aNameSpaceID),
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"html content only holds HTML attributes");
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if ((kNameSpaceID_HTML != aNameSpaceID) &&
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(kNameSpaceID_None != aNameSpaceID) &&
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(kNameSpaceID_Unknown != aNameSpaceID)) {
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return NS_ERROR_ILLEGAL_VALUE;
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}
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// Check for event handlers
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if ((nsLayoutAtoms::onclick == aAttribute) ||
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(nsLayoutAtoms::ondblclick == aAttribute) ||
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(nsLayoutAtoms::onmousedown == aAttribute) ||
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(nsLayoutAtoms::onmouseup == aAttribute) ||
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(nsLayoutAtoms::onmouseover == aAttribute) ||
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(nsLayoutAtoms::onmouseout == aAttribute)) {
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AddScriptEventListener(aAttribute, aValue, kIDOMMouseListenerIID);
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} else if ((nsLayoutAtoms::onkeydown == aAttribute) ||
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(nsLayoutAtoms::onkeyup == aAttribute) ||
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(nsLayoutAtoms::onkeypress == aAttribute)) {
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AddScriptEventListener(aAttribute, aValue, kIDOMKeyListenerIID);
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} else if (nsLayoutAtoms::onmousemove == aAttribute) {
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AddScriptEventListener(aAttribute, aValue, kIDOMMouseMotionListenerIID);
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} else if (nsLayoutAtoms::onload == aAttribute) {
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AddScriptEventListener(nsLayoutAtoms::onload, aValue,
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kIDOMLoadListenerIID);
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} else if ((nsLayoutAtoms::onunload == aAttribute) ||
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(nsLayoutAtoms::onabort == aAttribute) ||
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(nsLayoutAtoms::onerror == aAttribute)) {
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AddScriptEventListener(aAttribute, aValue, kIDOMLoadListenerIID);
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} else if ((nsLayoutAtoms::onfocus == aAttribute) ||
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(nsLayoutAtoms::onblur == aAttribute)) {
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AddScriptEventListener(aAttribute, aValue, kIDOMFocusListenerIID);
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} else if ((nsLayoutAtoms::onsubmit == aAttribute) ||
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(nsLayoutAtoms::onreset == aAttribute) ||
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(nsLayoutAtoms::onchange == aAttribute) ||
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(nsLayoutAtoms::onselect == aAttribute)) {
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AddScriptEventListener(aAttribute, aValue, kIDOMFormListenerIID);
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} else if (nsLayoutAtoms::onpaint == aAttribute) {
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AddScriptEventListener(aAttribute, aValue, kIDOMPaintListenerIID);
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} else if (nsLayoutAtoms::oninput == aAttribute) {
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AddScriptEventListener(aAttribute, aValue, kIDOMFormListenerIID);
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}
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nsHTMLValue val;
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if (NS_CONTENT_ATTR_NOT_THERE !=
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StringToAttribute(aAttribute, aValue, val)) {
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// string value was mapped to nsHTMLValue, set it that way
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result = SetHTMLAttribute(aAttribute, val, aNotify);
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return result;
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} else {
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if (ParseCommonAttribute(aAttribute, aValue, val)) {
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// string value was mapped to nsHTMLValue, set it that way
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result = SetHTMLAttribute(aAttribute, val, aNotify);
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return result;
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}
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if (aValue.IsEmpty()) { // if empty string
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val.SetEmptyValue();
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result = SetHTMLAttribute(aAttribute, val, aNotify);
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return result;
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}
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if (aNotify && (mDocument)) {
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mDocument->BeginUpdate();
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}
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// set as string value to avoid another string copy
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PRBool impact = NS_STYLE_HINT_NONE;
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GetMappedAttributeImpact(aAttribute, impact);
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if (mDocument) { // set attr via style sheet
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nsCOMPtr<nsIHTMLStyleSheet> sheet(dont_AddRef(GetAttrStyleSheet(mDocument)));
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if (sheet) {
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result = sheet->SetAttributeFor(aAttribute, aValue,
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(NS_STYLE_HINT_CONTENT < impact),
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this, mAttributes);
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}
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} else { // manage this ourselves and re-sync when we connect to doc
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result = EnsureWritableAttributes(this, mAttributes, PR_TRUE);
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if (mAttributes) {
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PRInt32 count;
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result = mAttributes->SetAttributeFor(aAttribute, aValue,
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(NS_STYLE_HINT_CONTENT < impact),
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this, nsnull, count);
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if (0 == count) {
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ReleaseAttributes(mAttributes);
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}
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}
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}
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}
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if (aNotify && (mDocument)) {
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result = mDocument->AttributeChanged(this, aNameSpaceID, aAttribute,
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NS_STYLE_HINT_UNKNOWN);
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mDocument->EndUpdate();
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}
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return result;
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}
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NS_IMETHODIMP
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nsHTMLUnknownElement::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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