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Make use of states so we can update the counter numbers. #3

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Make use of states so we can update the counter numbers. #3

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18df77b
Make use of states so we can update the counter numbers.
Sep 10, 2015
48ecdd3
React peer dependency
Sep 10, 2015
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51 changes: 40 additions & 11 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,38 +4,67 @@ var ease = require('ease-component');

var Counter = React.createClass({
getInitialState: function() {
return { value: this.props.begin };
return {
value: this.props.begin,
time: this.props.time,
begin: this.props.begin,
end: this.props.end,
easing: this.props.easing,
start: Date.now(),
stop: false
};
},

componentDidMount: function() {
this.start = Date.now();
raf(this.animate);
},

animate: function() {
if (this.stop) return;
if (this.state.stop) return;

raf(this.animate);
this.draw()
},

componentWillReceiveProps: function(nextProps) {
this.setState({
time: nextProps.time,
begin: nextProps.begin,
end: nextProps.end,
easing: nextProps.easing,
start: Date.now(),
stop: false
});

raf(this.animate);
this.draw();
},

draw: function() {
if (!this.isMounted()) return;

var time = this.props.time;
var begin = this.props.begin;
var end = this.props.end;
var easing = this.props.easing;
var time = this.state.time;
var begin = this.state.begin;
var end = this.state.end;
var easing = this.state.easing;

easing = easing && easing in ease ? easing : 'outCube';
var now = Date.now()
if (now - this.start >= time) this.stop = true;
var percentage = (now - this.start) / time;

var now = Date.now();
if (now - this.state.start >= time) {
this.setState({
stop: true
});
}

var percentage = (now - this.state.start) / time;
percentage = percentage > 1 ? 1 : percentage;
var easeVal = ease[easing](percentage);
var val = begin + (end - begin) * easeVal;

this.setState({ value: val });
this.setState({
value: val
});
},

render: function() {
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8 changes: 5 additions & 3 deletions package.json
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Expand Up @@ -21,7 +21,9 @@
"homepage": "https://github.com/saebekassebil/react-counter",
"dependencies": {
"ease-component": "^1.0.0",
"raf": "^2.0.4",
"react": "^0.12.2"
"raf": "^2.0.4"
},
"peerDependencies": {
"react": ">= 0.12"
}
}
}