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Confetti falls within the container #12

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90aba41
Confetti falls within the container
Jul 20, 2017
55dc2ad
Fix on unmount
Jul 20, 2017
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198 changes: 106 additions & 92 deletions confetti.js
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Original file line number Diff line number Diff line change
@@ -1,112 +1,126 @@
import React, {Component} from 'react';
import React, { Component } from "react";
import {
AppRegistry,
StyleSheet,
Text,
View,
Animated,
Dimensions
} from 'react-native';

let windowHeight = Dimensions.get('window').height;
let windowWidth = Dimensions.get('window').width;
AppRegistry,
StyleSheet,
Text,
View,
Animated,
Dimensions
} from "react-native";

class Confetti extends Component {
constructor(props) {
super(props);
this._yAnimation = new Animated.Value(0);
this.color = this.randomColor(this.props.colors);
this.left = this.randomValue(0, windowWidth);
}
constructor(props) {
super(props);
this._yAnimation = new Animated.Value(0);
this.color = this.randomColor(this.props.colors);
this.left = this.randomValue(0, this.props.containerWidth);
}

componentWillMount() {
let rotationOutput = this.randomValue(-220, 220) + 'deg';
this._rotateAnimation = this._yAnimation.interpolate({
inputRange: [0, windowHeight / 2, windowHeight],
outputRange: ['0deg', rotationOutput, rotationOutput]
});
componentWillMount() {
let rotationOutput = this.randomValue(-220, 220) + "deg";
this._rotateAnimation = this._yAnimation.interpolate({
inputRange: [
0,
this.props.containerHeight / 2,
this.props.containerHeight
],
outputRange: ["0deg", rotationOutput, rotationOutput]
});

let xDistance = this.randomIntValue((windowWidth / 3 * -1), windowWidth / 3);
this._xAnimation = this._yAnimation.interpolate({
inputRange: [0, windowHeight],
outputRange: [0, xDistance]
});
}
let xDistance = this.randomIntValue(
this.props.containerWidth / 3 * -1,
this.props.containerWidth / 3
);
this._xAnimation = this._yAnimation.interpolate({
inputRange: [0, this.props.containerHeight],
outputRange: [0, xDistance]
});
}

componentDidMount() {
let {duration, index} = this.props;
Animated.timing(this._yAnimation, {
duration: duration,
toValue: windowHeight + 1.25,
useNativeDriver: true
}).start(this.props.onComplete);
}
componentDidMount() {
let { duration, index } = this.props;
Animated.timing(this._yAnimation, {
duration: duration,
toValue: this.props.containerHeight + 1.25,
useNativeDriver: true
}).start(this.props.onComplete);
}

getTransformStyle() {
return {
transform: [
{translateY: this._yAnimation},
{translateX: this._xAnimation},
{rotate: this._rotateAnimation}
]
}
}
getTransformStyle() {
return {
transform: [
{ translateY: this._yAnimation },
{ translateX: this._xAnimation },
{ rotate: this._rotateAnimation }
]
};
}

getConfettiStyle() {
let {index} = this.props;
let bigConfetti = {
height: 5.5,
width: 11,
borderBottomLeftRadius: 5,
borderBottomRightRadius: 5,
borderTopLeftRadius: 2.6,
borderTopRightRadius: 2.6
};
let smallConfetti = {
height: 4.5,
width: 8,
borderBottomLeftRadius: 2.5,
borderBottomRightRadius: 2.5,
borderTopLeftRadius: 1.3,
borderTopRightRadius: 1.3
}
return index % 5 === 0 ? smallConfetti : bigConfetti;
}
getConfettiStyle() {
let { index } = this.props;
let bigConfetti = {
height: 5.5,
width: 11,
borderBottomLeftRadius: 5,
borderBottomRightRadius: 5,
borderTopLeftRadius: 2.6,
borderTopRightRadius: 2.6
};
let smallConfetti = {
height: 4.5,
width: 8,
borderBottomLeftRadius: 2.5,
borderBottomRightRadius: 2.5,
borderTopLeftRadius: 1.3,
borderTopRightRadius: 1.3
};
return index % 5 === 0 ? smallConfetti : bigConfetti;
}

randomValue(min, max) {
return Math.random() * (max - min) + min;
}
randomValue(min, max) {
return Math.random() * (max - min) + min;
}

randomIntValue(min, max) {
return Math.floor(Math.random() * (max - min) + min);
}
randomIntValue(min, max) {
return Math.floor(Math.random() * (max - min) + min);
}

randomColor(colors) {
return colors[this.randomIntValue(0,colors.length)];
}
randomColor(colors) {
return colors[this.randomIntValue(0, colors.length)];
}

render() {
let {left, ...otherProps} = this.props;
return <Animated.View style={[styles.confetti, this.getConfettiStyle(), this.getTransformStyle(), {marginLeft: this.left, backgroundColor: this.color}]} {...otherProps}/>
}
render() {
let { left, ...otherProps } = this.props;
return (
<Animated.View
style={[
styles.confetti,
this.getConfettiStyle(),
this.getTransformStyle(),
{ marginLeft: this.left, backgroundColor: this.color }
]}
{...otherProps}
/>
);
}
}

Confetti.defaultProps = {
duration: 6000,
colors: [
"rgb(242.2, 102, 68.8)",
"rgb(255, 198.9, 91.8)",
"rgb(122.4, 198.9, 163.2)",
"rgb(76.5, 193.8, 216.7)",
"rgb(147.9, 99.4, 140.2)"
]
}
duration: 6000,
colors: [
"rgb(242.2, 102, 68.8)",
"rgb(255, 198.9, 91.8)",
"rgb(122.4, 198.9, 163.2)",
"rgb(76.5, 193.8, 216.7)",
"rgb(147.9, 99.4, 140.2)"
]
};

const styles = StyleSheet.create({
confetti: {
position: 'absolute',
marginTop: 0
}
confetti: {
position: "absolute",
marginTop: 0
}
});

export default Confetti;
155 changes: 94 additions & 61 deletions confettiView.js
View file
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Original file line number Diff line number Diff line change
@@ -1,78 +1,111 @@
import React, {Component} from 'react';
import React, { Component } from "react";
import {
AppRegistry,
StyleSheet,
View,
Animated
} from 'react-native';
AppRegistry,
StyleSheet,
View,
Animated,
Dimensions
} from "react-native";

import Confetti from "./confetti.js";

let windowHeight = Dimensions.get("window").height;
let windowWidth = Dimensions.get("window").width;

class ConfettiView extends Component {
constructor(props) {
super(props);
this.state = {confettis: []};
this.confettiIndex = 0;
this.shouldStop = false;
}
constructor(props) {
super(props);
this.state = { confettis: [], width: windowWidth, height: windowHeight };
this.confettiIndex = 0;
this.shouldStop = false;
this.unmounted = false;
}

componentWillUnmount() {
this.stopConfetti();
this.unmounted = true;
}

startConfetti() {
let {confettis} = this.state;
let {confettiCount, timeout} = this.props;
this.shouldStop = false;
if(this.confettiIndex < confettiCount) {
setTimeout(() => {
if (this.shouldStop) {
return;
} else {
confettis.push({key: this.confettiIndex});
this.confettiIndex++;
this.setState({confettis});
this.startConfetti();
}
}, timeout);
}
}
startConfetti() {
let { confettis } = this.state;
let { confettiCount, timeout } = this.props;
this.shouldStop = false;
if (this.confettiIndex < confettiCount) {
setTimeout(() => {
if (this.shouldStop) {
return;
} else {
confettis.push({ key: this.confettiIndex });
this.confettiIndex++;
this.setState({ confettis });
this.startConfetti();
}
}, timeout);
}
}

removeConfetti(key) {
let {confettis} = this.state;
let {confettiCount} = this.props;
let index = confettis.findIndex(confetti => {return confetti.key === key});
confettis.splice(index, 1);
this.setState({confettis});
if(key === confettiCount - 1) {
this.confettiIndex = 0;
}
}
removeConfetti(key) {
if (this.unmounted === true) return;
let { confettis } = this.state;
let { confettiCount } = this.props;
let index = confettis.findIndex(confetti => {
return confetti.key === key;
});
confettis.splice(index, 1);
this.setState({ confettis });
if (key === confettiCount - 1) {
this.confettiIndex = 0;
}
}

stopConfetti ()
{
this.shouldStop = true;
}
onPositioned(event) {
let { x, y, width, height } = event.nativeEvent.layout;
this.setState({ width, height });
}

render() {
let {confettis} = this.state;
let {...otherProps} = this.props
return <View style={styles.container}>
{confettis.map(confetti => {
return <Confetti key={confetti.key} index={confetti.key} onComplete={this.removeConfetti.bind(this, confetti.key)} colors={this.props.colors} {...otherProps}/>
})}
</View>
}
stopConfetti() {
this.shouldStop = true;
}

render() {
let { confettis } = this.state;
let { ...otherProps } = this.props;
return (
<View
style={styles.container}
onLayout={event => this.onPositioned(event)}
>
{confettis.map(confetti => {
return (
<Confetti
key={confetti.key}
index={confetti.key}
containerWidth={this.state.width}
containerHeight={this.state.height}
onComplete={this.removeConfetti.bind(this, confetti.key)}
colors={this.props.colors}
{...otherProps}
/>
);
})}
</View>
);
}
}

ConfettiView.defaultProps = {
confettiCount: 100,
timeout: 30
}
confettiCount: 100,
timeout: 30
};

const styles = StyleSheet.create({
container: {
position: 'absolute',
top: 0,
left: 0,
right: 0
}
container: {
position: "absolute",
top: 0,
left: 0,
right: 0,
bottom: 0
}
});

export default ConfettiView;