зеркало из https://github.com/mozilla/pjs.git
108 строки
4.1 KiB
C++
108 строки
4.1 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 the Mozilla SMIL module.
|
|
*
|
|
* The Initial Developer of the Original Code is Brian Birtles.
|
|
* Portions created by the Initial Developer are Copyright (C) 2005
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Brian Birtles <birtles@gmail.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of 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 NS_ISMILATTR_H_
|
|
#define NS_ISMILATTR_H_
|
|
|
|
#include "nsStringFwd.h"
|
|
|
|
class nsSMILValue;
|
|
class nsISMILType;
|
|
class nsISMILAnimationElement;
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
// nsISMILAttr: A variable targeted by SMIL for animation and can therefore have
|
|
// an underlying (base) value and an animated value For example, an attribute of
|
|
// a particular SVG element.
|
|
//
|
|
// These objects only exist during the compositing phase of SMIL animation
|
|
// calculations. They have a single owner who is responsible for deleting the
|
|
// object.
|
|
|
|
class nsISMILAttr
|
|
{
|
|
public:
|
|
/**
|
|
* Creates a new nsSMILValue for this attribute from a string. The string is
|
|
* parsed in the context of this attribute so that context-dependent values
|
|
* such as em-based units can be resolved into a canonical form suitable for
|
|
* animation (including interpolation etc.).
|
|
*
|
|
* @param aStr A string defining the new value to be created.
|
|
* @param aSrcElement The source animation element. This may be needed to
|
|
* provided additional context data such as for
|
|
* animateTransform where the 'type' attribute is needed to
|
|
* parse the value.
|
|
* @param aValue Outparam for storing the parsed value.
|
|
* @return NS_OK on success or an error code if creation failed.
|
|
*/
|
|
virtual nsresult ValueFromString(const nsAString& aStr,
|
|
const nsISMILAnimationElement* aSrcElement,
|
|
nsSMILValue& aValue) const = 0;
|
|
|
|
/**
|
|
* Gets the underlying value of this attribute.
|
|
*
|
|
* @return an nsSMILValue object. returned_object.IsNull() will be true if an
|
|
* error occurred.
|
|
*/
|
|
virtual nsSMILValue GetBaseValue() const = 0;
|
|
|
|
/**
|
|
* Clears the animated value of this attribute.
|
|
*
|
|
* NOTE: The animation target is not guaranteed to be in a document when this
|
|
* method is called. (See bug 523188)
|
|
*/
|
|
virtual void ClearAnimValue() = 0;
|
|
|
|
/**
|
|
* Sets the presentation value of this attribute.
|
|
*
|
|
* @param aValue The value to set.
|
|
* @return NS_OK on success or an error code if setting failed.
|
|
*/
|
|
virtual nsresult SetAnimValue(const nsSMILValue& aValue) = 0;
|
|
|
|
/**
|
|
* Virtual destructor, to make sure subclasses can clean themselves up.
|
|
*/
|
|
virtual ~nsISMILAttr() {};
|
|
};
|
|
|
|
#endif // NS_ISMILATTR_H_
|