Mozilla/mozilla/layout/html/content/src/nsHTMLScriptElement.cpp
2000-09-09 05:46:14 +00:00

293 lines
7.3 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "nsIDOMHTMLScriptElement.h"
#include "nsIScriptObjectOwner.h"
#include "nsIDOMEventReceiver.h"
#include "nsIHTMLContent.h"
#include "nsGenericHTMLElement.h"
#include "nsHTMLAtoms.h"
#include "nsHTMLIIDs.h"
#include "nsIStyleContext.h"
#include "nsIMutableStyleContext.h"
#include "nsStyleConsts.h"
#include "nsIPresContext.h"
#include "nsITextContent.h"
class nsHTMLScriptElement : public nsIDOMHTMLScriptElement,
public nsIJSScriptObject,
public nsIHTMLContent
{
public:
nsHTMLScriptElement(nsINodeInfo *aNodeInfo);
virtual ~nsHTMLScriptElement();
// nsISupports
NS_DECL_ISUPPORTS
// nsIDOMNode
NS_IMPL_IDOMNODE_USING_GENERIC(mInner)
// nsIDOMElement
NS_IMPL_IDOMELEMENT_USING_GENERIC(mInner)
// nsIDOMHTMLElement
NS_IMPL_IDOMHTMLELEMENT_USING_GENERIC(mInner)
// nsIDOMHTMLScriptElement
NS_DECL_IDOMHTMLSCRIPTELEMENT
// nsIJSScriptObject
NS_IMPL_IJSSCRIPTOBJECT_USING_GENERIC(mInner)
// nsIContent
NS_IMPL_ICONTENT_USING_GENERIC(mInner)
// nsIHTMLContent
NS_IMPL_IHTMLCONTENT_USING_GENERIC(mInner)
protected:
nsGenericHTMLContainerElement mInner;
};
nsresult
NS_NewHTMLScriptElement(nsIHTMLContent** aInstancePtrResult,
nsINodeInfo *aNodeInfo)
{
NS_ENSURE_ARG_POINTER(aInstancePtrResult);
NS_ENSURE_ARG_POINTER(aNodeInfo);
nsIHTMLContent* it = new nsHTMLScriptElement(aNodeInfo);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(NS_GET_IID(nsIHTMLContent), (void**) aInstancePtrResult);
}
nsHTMLScriptElement::nsHTMLScriptElement(nsINodeInfo *aNodeInfo)
{
NS_INIT_REFCNT();
mInner.Init(this, aNodeInfo);
}
nsHTMLScriptElement::~nsHTMLScriptElement()
{
}
NS_IMPL_ADDREF(nsHTMLScriptElement)
NS_IMPL_RELEASE(nsHTMLScriptElement)
nsresult
nsHTMLScriptElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
NS_IMPL_HTML_CONTENT_QUERY_INTERFACE(aIID, aInstancePtr, this)
if (aIID.Equals(NS_GET_IID(nsIDOMHTMLScriptElement))) {
nsIDOMHTMLScriptElement* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
nsresult
nsHTMLScriptElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
{
nsHTMLScriptElement* it = new nsHTMLScriptElement(mInner.mNodeInfo);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsCOMPtr<nsIDOMNode> kungFuDeathGrip(it);
mInner.CopyInnerTo(this, &it->mInner, aDeep);
return it->QueryInterface(NS_GET_IID(nsIDOMNode), (void**) aReturn);
}
NS_IMETHODIMP
nsHTMLScriptElement::GetText(nsAWritableString& aValue)
{
PRInt32 i, count = 0;
nsresult rv = NS_OK;
aValue.Truncate();
ChildCount(count);
for (i = 0; i < count; i++) {
nsCOMPtr<nsIContent> child;
rv = ChildAt(i, *getter_AddRefs(child));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMNode> node(do_QueryInterface(child));
if (node) {
nsAutoString tmp;
node->GetNodeValue(tmp);
aValue.Append(tmp);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsHTMLScriptElement::SetText(const nsAReadableString& aValue)
{
nsCOMPtr<nsIContent> content;
PRInt32 i, count = 0;
nsresult rv = NS_OK;
ChildCount(count);
if (count) {
for (i = count-1; i > 1; i--) {
RemoveChildAt(i, PR_FALSE);
}
rv = ChildAt(0, *getter_AddRefs(content));
NS_ENSURE_SUCCESS(rv, rv);
} else {
rv = NS_NewTextNode(getter_AddRefs(content));
NS_ENSURE_SUCCESS(rv, rv);
rv = InsertChildAt(content, 0, PR_FALSE);
NS_ENSURE_SUCCESS(rv, rv);
}
if (content) {
nsCOMPtr<nsIDOMNode> node(do_QueryInterface(content));
if (node) {
rv = node->SetNodeValue(aValue);
}
}
return rv;
}
NS_IMETHODIMP
nsHTMLScriptElement::GetHtmlFor(nsAWritableString& aValue)
{
// XXX write me
// mInner.GetAttribute(nsHTMLAtoms::charset, aValue);
return NS_OK;
}
NS_IMETHODIMP
nsHTMLScriptElement::SetHtmlFor(const nsAReadableString& aValue)
{
// XXX write me
// return mInner.SetAttr(nsHTMLAtoms::charset, aValue);
return NS_OK;
}
NS_IMETHODIMP
nsHTMLScriptElement::GetEvent(nsAWritableString& aValue)
{
// XXX write me
// mInner.GetAttribute(nsHTMLAtoms::charset, aValue);
return NS_OK;
}
NS_IMETHODIMP
nsHTMLScriptElement::SetEvent(const nsAReadableString& aValue)
{
// XXX write me
// return mInner.SetAttr(nsHTMLAtoms::charset, aValue);
return NS_OK;
}
NS_IMPL_STRING_ATTR(nsHTMLScriptElement, Charset, charset)
NS_IMPL_BOOL_ATTR(nsHTMLScriptElement, Defer, defer)
NS_IMPL_STRING_ATTR(nsHTMLScriptElement, Src, src)
NS_IMPL_STRING_ATTR(nsHTMLScriptElement, Type, type)
NS_IMETHODIMP
nsHTMLScriptElement::StringToAttribute(nsIAtom* aAttribute,
const nsAReadableString& aValue,
nsHTMLValue& aResult)
{
return NS_CONTENT_ATTR_NOT_THERE;
}
NS_IMETHODIMP
nsHTMLScriptElement::AttributeToString(nsIAtom* aAttribute,
const nsHTMLValue& aValue,
nsAWritableString& aResult) const
{
return mInner.AttributeToString(aAttribute, aValue, aResult);
}
static void
MapAttributesInto(const nsIHTMLMappedAttributes* aAttributes,
nsIMutableStyleContext* aContext,
nsIPresContext* aPresContext)
{
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext, aPresContext);
}
NS_IMETHODIMP
nsHTMLScriptElement::GetMappedAttributeImpact(const nsIAtom* aAttribute,
PRInt32& aHint) const
{
if (! nsGenericHTMLElement::GetCommonMappedAttributesImpact(aAttribute, aHint)) {
aHint = NS_STYLE_HINT_CONTENT;
}
return NS_OK;
}
NS_IMETHODIMP
nsHTMLScriptElement::GetAttributeMappingFunctions(nsMapAttributesFunc& aFontMapFunc,
nsMapAttributesFunc& aMapFunc) const
{
aFontMapFunc = nsnull;
aMapFunc = &MapAttributesInto;
return NS_OK;
}
NS_IMETHODIMP
nsHTMLScriptElement::HandleDOMEvent(nsIPresContext* aPresContext,
nsEvent* aEvent,
nsIDOMEvent** aDOMEvent,
PRUint32 aFlags,
nsEventStatus* aEventStatus)
{
return mInner.HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
aFlags, aEventStatus);
}
NS_IMETHODIMP
nsHTMLScriptElement::SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const
{
if (!aResult) return NS_ERROR_NULL_POINTER;
#ifdef DEBUG
mInner.SizeOf(aSizer, aResult, sizeof(*this));
#endif
return NS_OK;
}