78 lines
2.3 KiB
C++
78 lines
2.3 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.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications 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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*/
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#include "nsString.h"
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#include "nsCOMPtr.h"
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#include "nsIDocument.h"
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#include "nsIHTMLDocument.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMNode.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMHTMLMapElement.h"
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#include "nsImageMapUtils.h"
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/*static*/
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nsresult nsImageMapUtils::FindImageMap(nsIDocument *aDocument,
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const nsAReadableString &aUsemap,
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nsIDOMHTMLMapElement **aMap)
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{
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NS_ENSURE_ARG_POINTER(aDocument);
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NS_ENSURE_ARG_POINTER(aMap);
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*aMap = nsnull;
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nsresult rv = NS_OK;
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nsAutoString usemap(aUsemap);
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// Strip out whitespace in the name for navigator compatibility
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// XXX NAV QUIRK
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usemap.StripWhitespace();
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if (!usemap.IsEmpty() && usemap.First() == '#') {
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usemap.Cut(0, 1);
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}
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if (usemap.IsEmpty())
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return rv;
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nsCOMPtr<nsIHTMLDocument> htmlDoc(do_QueryInterface(aDocument));
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if (htmlDoc) {
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htmlDoc->GetImageMap(usemap,aMap);
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} else {
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// XHTML requires that where a name attribute was used in HTML 4.01,
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// the ID attribute must be used in XHTML. name is officially deprecated.
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// This simplifies our life becase we can simply get the map with
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// getElementById().
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nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(aDocument));
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if (domDoc) {
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nsCOMPtr<nsIDOMElement> element;
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domDoc->GetElementById(usemap,getter_AddRefs(element));
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if (element) {
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element->QueryInterface(NS_GET_IID(nsIDOMHTMLMapElement),(void**)aMap);
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}
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}
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}
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return rv;
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}
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