gecko/content/base/public/nsIScriptElement.h
2009-11-09 17:04:24 -08:00

135 lines
3.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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.
*
* The Initial Developer of the Original Code is
* Netscape Communications.
* Portions created by the Initial Developer are Copyright (C) 2001
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Vidur Apparao <vidur@netscape.com> (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsIScriptElement_h___
#define nsIScriptElement_h___
#include "nsISupports.h"
#include "nsIURI.h"
#include "nsCOMPtr.h"
#include "nsIScriptLoaderObserver.h"
// e68ddc48-4055-4ba9-978d-c49d9cf3189a
#define NS_ISCRIPTELEMENT_IID \
{ 0xe68ddc48, 0x4055, 0x4ba9, \
{ 0x97, 0x8d, 0xc4, 0x9d, 0x9c, 0xf3, 0x18, 0x9a } }
/**
* Internal interface implemented by script elements
*/
class nsIScriptElement : public nsIScriptLoaderObserver {
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_ISCRIPTELEMENT_IID)
nsIScriptElement()
: mLineNumber(0),
mIsEvaluated(PR_FALSE),
mMalformed(PR_FALSE),
mDoneAddingChildren(PR_TRUE)
{
}
/**
* Content type identifying the scripting language. Can be empty, in
* which case javascript will be assumed.
*/
virtual void GetScriptType(nsAString& type) = 0;
/**
* Location of script source text. Can return null, in which case
* this is assumed to be an inline script element.
*/
virtual already_AddRefed<nsIURI> GetScriptURI() = 0;
/**
* Script source text for inline script elements.
*/
virtual void GetScriptText(nsAString& text) = 0;
virtual void GetScriptCharset(nsAString& charset) = 0;
/**
* Is the script deferred. Currently only supported by HTML scripts.
*/
virtual PRBool GetScriptDeferred() = 0;
/**
* Is the script async. Currently only supported by HTML scripts.
*/
virtual PRBool GetScriptAsync() = 0;
void SetScriptLineNumber(PRUint32 aLineNumber)
{
mLineNumber = aLineNumber;
}
PRUint32 GetScriptLineNumber()
{
return mLineNumber;
}
void SetIsMalformed()
{
mMalformed = PR_TRUE;
}
PRBool IsMalformed()
{
return mMalformed;
}
void PreventExecution()
{
mIsEvaluated = PR_TRUE;
}
void WillCallDoneAddingChildren()
{
NS_ASSERTION(mDoneAddingChildren, "unexpected, but not fatal");
mDoneAddingChildren = PR_FALSE;
}
protected:
PRUint32 mLineNumber;
PRPackedBool mIsEvaluated;
PRPackedBool mMalformed;
PRPackedBool mDoneAddingChildren;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsIScriptElement, NS_ISCRIPTELEMENT_IID)
#endif // nsIScriptElement_h___