gecko-dev/content/smil/nsSMILTimeValueSpec.cpp

105 lines
3.7 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 ***** */
#include "nsSMILTimeValueSpec.h"
#include "nsSMILTimeValue.h"
#include "nsSMILTimedElement.h"
#include "nsSMILInstanceTime.h"
#include "nsSMILParserUtils.h"
#include "nsString.h"
#include "nsAutoPtr.h"
//----------------------------------------------------------------------
// Implementation
already_AddRefed<nsSMILTimeValueSpec>
NS_NewSMILTimeValueSpec(nsSMILTimedElement* aOwner,
PRBool aIsBegin,
const nsAString& aStringSpec)
{
nsSMILTimeValueSpec* result = new nsSMILTimeValueSpec(aOwner, aIsBegin);
NS_ENSURE_TRUE(result, nsnull);
NS_ADDREF(result); // Need to addref as SetSpec calls getWeakReference
nsresult rv = result->SetSpec(aStringSpec);
if (NS_FAILED(rv)) {
NS_RELEASE(result);
return nsnull;
}
return result;
}
nsSMILTimeValueSpec::nsSMILTimeValueSpec(nsSMILTimedElement* aOwner,
PRBool aIsBegin)
: mOwner(aOwner),
mIsBegin(aIsBegin),
mOffset() // initalises to zero
{
}
//----------------------------------------------------------------------
// nsISupports
NS_IMPL_ISUPPORTS1(nsSMILTimeValueSpec,
nsISupports)
//----------------------------------------------------------------------
// nsSMILTimeValueSpec
nsresult
nsSMILTimeValueSpec::SetSpec(const nsAString& aStringSpec)
{
// XXX Need to parse other specifiers, not just offset type
nsSMILTimeValue clockTime;
nsresult rv = nsSMILParserUtils::ParseClockValue(aStringSpec, &clockTime,
nsSMILParserUtils::kClockValueAllowSign
| nsSMILParserUtils::kClockValueAllowIndefinite);
if (NS_FAILED(rv) || (!clockTime.IsResolved() && !clockTime.IsIndefinite()))
return NS_ERROR_FAILURE;
if (clockTime.IsResolved())
mOffset = clockTime.GetMillis();
if (mOwner) {
nsSMILInstanceTime instance(clockTime, this);
mOwner->AddInstanceTime(instance, mIsBegin);
}
return rv;
}