mirror of https://github.com/perkeep/perkeep.git
71 lines
2.0 KiB
JavaScript
71 lines
2.0 KiB
JavaScript
/*
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Copyright 2013 The Perkeep Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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goog.provide('cam.SpritedAnimation');
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goog.require('cam.SpritedImage');
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goog.require('cam.object');
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cam.SpritedAnimation = React.createClass({
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propTypes: {
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className: React.PropTypes.string,
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loopDelay: React.PropTypes.number,
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interval: React.PropTypes.number,
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numFrames: React.PropTypes.number.isRequired,
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sheetWidth: React.PropTypes.number.isRequired,
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spriteHeight: React.PropTypes.number.isRequired,
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spriteWidth: React.PropTypes.number.isRequired,
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src: React.PropTypes.string.isRequired,
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startFrame: React.PropTypes.number,
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style: React.PropTypes.object,
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},
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getInitialState: function() {
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return {
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index: this.props.startFrame || 0,
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}
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},
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componentDidMount: function(root) {
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this.scheduleFrame_();
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},
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scheduleFrame_: function() {
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var interval = function() {
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if (goog.isDef(this.props.loopDelay) && this.state.index == (this.props.numFrames - 1)) {
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return this.props.loopDelay;
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}
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if (goog.isDef(this.props.interval)) {
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return this.props.interval;
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}
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return 30;
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};
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this.timerId_ = window.setTimeout(function() {
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this.setState({
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index: ++this.state.index % this.props.numFrames
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}, this.scheduleFrame_);
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}.bind(this), interval.call(this));
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},
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componentWillUnmount: function() {
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window.clearInterval(this.timerId_);
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},
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render: function() {
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return React.createElement(cam.SpritedImage, cam.object.extend(this.props, {index: this.state.index}));
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}
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});
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