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85 lines
3.2 KiB
C++
85 lines
3.2 KiB
C++
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Jonas Sicking <jonas@sicking.cc> (original developer)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIScriptLoaderObserver.h"
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#include "nsIScriptElement.h"
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#include "nsStubMutationObserver.h"
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#include "prtypes.h"
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/**
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* Baseclass useful for script elements (such as <xhtml:script> and
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* <svg:script>). Currently the class assumes that only the 'src'
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* attribute and the children of the class affect what script to execute.
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*/
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class nsScriptElement : public nsIScriptElement,
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public nsStubMutationObserver
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{
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public:
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// nsIScriptLoaderObserver
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NS_DECL_NSISCRIPTLOADEROBSERVER
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// nsIMutationObserver
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NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
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NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
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protected:
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// Internal methods
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/**
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* Check if this element contains any script, linked or inline
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*/
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virtual PRBool HasScriptContent() = 0;
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/**
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* Processes the script if it's in the document-tree and links to or
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* contains a script. Once it has been evaluated there is no way to make it
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* reevaluate the script, you'll have to create a new element. This also means
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* that when adding a src attribute to an element that already contains an
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* inline script, the script referenced by the src attribute will not be
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* loaded.
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*
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* In order to be able to use multiple childNodes, or to use the
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* fallback mechanism of using both inline script and linked script you have
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* to add all attributes and childNodes before adding the element to the
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* document-tree.
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*/
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virtual nsresult MaybeProcessScript();
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};
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