382 lines
12 KiB
C++
382 lines
12 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 "nsIDOMHTMLIFrameElement.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 "nsIDocument.h"
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#include "nsIDOMDocument.h"
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#include "nsIWebNavigation.h"
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#include "nsIHTMLAttributes.h"
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#include "nsIChromeEventHandler.h"
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#include "nsDOMError.h"
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class nsHTMLIFrameElement : public nsIDOMHTMLIFrameElement,
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public nsIJSScriptObject,
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public nsIHTMLContent,
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public nsIChromeEventHandler
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{
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public:
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nsHTMLIFrameElement(nsINodeInfo *aNodeInfo);
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virtual ~nsHTMLIFrameElement();
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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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// nsIDOMHTMLIFrameElement
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NS_DECL_IDOMHTMLIFRAMEELEMENT
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// nsIJSScriptObject
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NS_IMPL_IJSSCRIPTOBJECT_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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// nsIChromeEventHandler
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NS_DECL_NSICHROMEEVENTHANDLER
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protected:
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nsGenericHTMLContainerElement mInner;
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};
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nsresult
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NS_NewHTMLIFrameElement(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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NS_ENSURE_ARG_POINTER(aNodeInfo);
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nsIHTMLContent* it = new nsHTMLIFrameElement(aNodeInfo);
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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(NS_GET_IID(nsIHTMLContent), (void**) aInstancePtrResult);
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}
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nsHTMLIFrameElement::nsHTMLIFrameElement(nsINodeInfo *aNodeInfo)
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{
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NS_INIT_REFCNT();
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mInner.Init(this, aNodeInfo);
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}
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nsHTMLIFrameElement::~nsHTMLIFrameElement()
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{
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}
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NS_IMPL_ADDREF(nsHTMLIFrameElement)
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NS_IMPL_RELEASE(nsHTMLIFrameElement)
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nsresult
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nsHTMLIFrameElement::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(NS_GET_IID(nsIDOMHTMLIFrameElement))) {
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nsIDOMHTMLIFrameElement* 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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else if (aIID.Equals(NS_GET_IID(nsIChromeEventHandler))) {
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*aInstancePtr = NS_STATIC_CAST(nsIChromeEventHandler*, this);
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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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nsHTMLIFrameElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
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{
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nsHTMLIFrameElement* it = new nsHTMLIFrameElement(mInner.mNodeInfo);
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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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nsCOMPtr<nsIDOMNode> kungFuDeathGrip(it);
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mInner.CopyInnerTo(this, &it->mInner, aDeep);
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return it->QueryInterface(NS_GET_IID(nsIDOMNode), (void**) aReturn);
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}
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NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Align, align)
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NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, FrameBorder, frameborder)
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NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Height, height)
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NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, LongDesc, longdesc)
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NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, MarginHeight, marginheight)
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NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, MarginWidth, marginwidth)
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NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Name, name)
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NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Scrolling, scrolling)
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NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Src, src)
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NS_IMPL_STRING_ATTR(nsHTMLIFrameElement, Width, width)
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NS_IMETHODIMP
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nsHTMLIFrameElement::GetContentDocument(nsIDOMDocument** aContentDocument)
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{
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NS_ENSURE_ARG_POINTER(aContentDocument);
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*aContentDocument = nsnull;
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NS_ENSURE_TRUE(mInner.mDocument, NS_OK);
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nsCOMPtr<nsIPresShell> presShell;
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presShell = dont_AddRef(mInner.mDocument->GetShellAt(0));
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NS_ENSURE_TRUE(presShell, NS_OK);
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nsCOMPtr<nsISupports> tmp;
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presShell->GetSubShellFor(this, getter_AddRefs(tmp));
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NS_ENSURE_TRUE(tmp, NS_OK);
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nsCOMPtr<nsIWebNavigation> webNav = do_QueryInterface(tmp);
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NS_ENSURE_TRUE(webNav, NS_OK);
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nsCOMPtr<nsIDOMDocument> domDoc;
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webNav->GetDocument(getter_AddRefs(domDoc));
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*aContentDocument = domDoc;
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NS_IF_ADDREF(*aContentDocument);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLIFrameElement::SetContentDocument(nsIDOMDocument* aContentDocument)
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{
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return NS_ERROR_DOM_INVALID_MODIFICATION_ERR;
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}
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NS_IMETHODIMP
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nsHTMLIFrameElement::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::marginwidth) {
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if (nsGenericHTMLElement::ParseValueOrPercent(aValue, aResult,
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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::marginheight) {
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if (nsGenericHTMLElement::ParseValueOrPercent(aValue, aResult,
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eHTMLUnit_Pixel)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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if (aAttribute == nsHTMLAtoms::width) {
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if (nsGenericHTMLElement::ParseValueOrPercent(aValue, aResult,
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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::height) {
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if (nsGenericHTMLElement::ParseValueOrPercent(aValue, aResult,
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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::frameborder) {
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if (nsGenericHTMLElement::ParseFrameborderValue(PR_TRUE, 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::scrolling) {
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if (nsGenericHTMLElement::ParseScrollingValue(PR_TRUE, 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::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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return NS_CONTENT_ATTR_NOT_THERE;
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}
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NS_IMETHODIMP
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nsHTMLIFrameElement::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::frameborder) {
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nsGenericHTMLElement::FrameborderValueToString(PR_TRUE, aValue, aResult);
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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else if (aAttribute == nsHTMLAtoms::scrolling) {
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nsGenericHTMLElement::ScrollingValueToString(PR_TRUE, aValue, aResult);
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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else 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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return mInner.AttributeToString(aAttribute, aValue, 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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if (nsnull != aAttributes) {
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nsGenericHTMLElement::MapImageAlignAttributeInto(aAttributes, aContext, aPresContext);
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nsHTMLValue value;
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float p2t;
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aPresContext->GetScaledPixelsToTwips(&p2t);
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nsStylePosition* pos = (nsStylePosition*)
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aContext->GetMutableStyleData(eStyleStruct_Position);
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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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pos->mWidth.SetCoordValue(twips);
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}
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else if (value.GetUnit() == eHTMLUnit_Percent) {
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pos->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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pos->mHeight.SetCoordValue(twips);
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}
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else if (value.GetUnit() == eHTMLUnit_Percent) {
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pos->mHeight.SetPercentValue(value.GetPercentValue());
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}
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// frameborder: 0 | 1 (| NO | YES in quirks mode)
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// If frameborder is 0 or No, set border to 0
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// else leave it as the value set in html.css
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aAttributes->GetAttribute(nsHTMLAtoms::frameborder, value);
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if (value.GetUnit() == eHTMLUnit_Enumerated) {
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PRInt32 frameborder = value.GetIntValue();
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if (NS_STYLE_FRAME_0 == frameborder ||
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NS_STYLE_FRAME_NO == frameborder ||
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NS_STYLE_FRAME_OFF == frameborder) {
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nsStyleSpacing* spacing = (nsStyleSpacing*)
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aContext->GetMutableStyleData(eStyleStruct_Spacing);
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if (spacing) {
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nsStyleCoord coord;
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coord.SetCoordValue(0);
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spacing->mBorder.SetTop(coord);
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spacing->mBorder.SetRight(coord);
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spacing->mBorder.SetBottom(coord);
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spacing->mBorder.SetLeft(coord);
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}
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}
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}
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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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nsHTMLIFrameElement::GetMappedAttributeImpact(const nsIAtom* aAttribute,
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PRInt32& aHint) const
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{
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if ((aAttribute == nsHTMLAtoms::width) ||
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(aAttribute == nsHTMLAtoms::height)) {
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aHint = NS_STYLE_HINT_REFLOW;
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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 (aAttribute == nsHTMLAtoms::frameborder) {
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aHint = NS_STYLE_HINT_REFLOW;
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}
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else if (! nsGenericHTMLElement::GetCommonMappedAttributesImpact(aAttribute, aHint)) {
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aHint = NS_STYLE_HINT_CONTENT;
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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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nsHTMLIFrameElement::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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nsHTMLIFrameElement::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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nsHTMLIFrameElement::SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const
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{
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return mInner.SizeOf(aSizer, aResult, sizeof(*this));
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}
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//*****************************************************************************
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// nsHTMLIFrameElement::nsIChromeEventHandler
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//*****************************************************************************
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NS_IMETHODIMP nsHTMLIFrameElement::HandleChromeEvent(nsIPresContext* aPresContext,
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nsEvent* aEvent, nsIDOMEvent** aDOMEvent, PRUint32 aFlags,
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nsEventStatus* aEventStatus)
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{
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return HandleDOMEvent(aPresContext, aEvent, aDOMEvent, aFlags,aEventStatus);
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}
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