| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| typedef void _TimerCallback0(); |
| typedef void _TimerCallback1(Timer timer); |
| |
| patch class Timer { |
| /* patch */ factory Timer(var duration, Function callback) { |
| // TODO(floitsch): remove these checks when we remove the deprecated |
| // millisecond argument and the 1-argument callback. Also remove |
| // the int-test below. |
| if (callback is! _TimerCallback0 && callback is! _TimerCallback1) { |
| throw new ArgumentError(callback); |
| } |
| int milliseconds = duration is int ? duration : duration.inMilliseconds; |
| if (milliseconds < 0) milliseconds = 0; |
| _TimerCallback1 oneArgumentCallback = |
| callback is _TimerCallback1 ? callback : (_) { callback(); }; |
| if (_TimerFactory._factory == null) { |
| throw new UnsupportedError("Timer interface not supported."); |
| } |
| return _TimerFactory._factory(milliseconds, oneArgumentCallback, false); |
| } |
| |
| /** |
| * Creates a new repeating timer. The [callback] is invoked every |
| * [milliseconds] millisecond until cancelled. |
| */ |
| /* patch */ factory Timer.repeating(var duration, |
| void callback(Timer timer)) { |
| if (_TimerFactory._factory == null) { |
| throw new UnsupportedError("Timer interface not supported."); |
| } |
| // TODO(floitsch): remove this check when we remove the deprecated |
| // millisecond argument. |
| int milliseconds = duration is int ? duration : duration.inMilliseconds; |
| if (milliseconds < 0) milliseconds = 0; |
| return _TimerFactory._factory(milliseconds, callback, true); |
| } |
| } |
| |
| typedef Timer _TimerFactoryClosure(int milliseconds, |
| void callback(Timer timer), |
| bool repeating); |
| |
| class _TimerFactory { |
| static _TimerFactoryClosure _factory; |
| } |
| |
| // TODO(ahe): Warning: this is NOT called by Dartium. Instead, it sets |
| // [_TimerFactory._factory] directly. |
| void _setTimerFactoryClosure(_TimerFactoryClosure closure) { |
| _TimerFactory._factory = closure; |
| } |