From 32a7dc9515e614f4ffd599d506aa207c4c6ad289 Mon Sep 17 00:00:00 2001
From: Elliot Hesp <elliot.hesp@gmail.com>
Date: Sun, 27 Dec 2015 13:02:31 +0000
Subject: [PATCH] Create a generic IconToggle component

---
 lib/IconToggle.js | 173 ++++++++++++++++++++++++++++++++++++++++++++++
 lib/index.js      |   3 +-
 2 files changed, 174 insertions(+), 2 deletions(-)
 create mode 100644 lib/IconToggle.js

diff --git a/lib/IconToggle.js b/lib/IconToggle.js
new file mode 100644
index 0000000..b56f228
--- /dev/null
+++ b/lib/IconToggle.js
@@ -0,0 +1,173 @@
+import React, { Component, StyleSheet, PropTypes, Text, View, Animated, Dimensions } from 'react-native';
+import { TYPO, PRIMARY, COLOR, PRIMARY_COLORS, THEME_NAME } from './config';
+import { getColor } from './helpers';
+import Icon from './Icon';
+
+export default class IconToggle extends Component {
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            scaleValue: new Animated.Value(0.001),
+            opacityValue: new Animated.Value(0.1),
+            maxOpacity: props.opacity,
+            size: null
+        };
+        this._responder = {
+            onStartShouldSetResponder: (e) => true,
+            onResponderGrant: this._highlight,
+            onResponderRelease: this._handleResponderEnd,
+            onResponderTerminate: this._unHighlight
+        };
+    }
+
+    static propTypes = {
+        color: PropTypes.string.isRequired,
+        opacity: PropTypes.number,
+        disabled: PropTypes.bool,
+        onPress: PropTypes.func,
+        percent: PropTypes.number,
+        children: PropTypes.element.isRequired,
+        badge: PropTypes.shape({
+            value: PropTypes.number,
+            backgroundColor: PropTypes.string,
+            textColor: PropTypes.string
+        })
+    };
+
+    static defaultProps = {
+        opacity: .1,
+        disabled: false,
+        percent: 90,
+    };
+
+    setSize = (event) => {
+        const {x, y, width, height} = event.nativeEvent.layout;
+
+        this.setState({
+            size: width > height ? width : height
+        });
+    }
+
+    render() {
+        const { scaleValue, opacityValue, size } = this.state;
+        const { color, children } = this.props;
+
+        let { badge } = this.props;
+        let { percent } = this.props;
+
+        if (percent < 0) {
+            percent = 0;
+        }
+        if (percent > 100) {
+            percent = 100;
+        }
+
+        if (badge && typeof badge.value === 'number') {
+            badge = Object.assign({},
+                { value: badge.value },
+                badge.backgroundColor ? { backgroundColor: badge.backgroundColor } : { backgroundColor: 'paperRed'},
+                badge.textColor ? { textColor: badge.textColor } : { textColor: '#ffffff' }
+            );
+        }
+        percent = percent / 100;
+
+        return (
+            <View {...this._responder}>
+                <View>
+                    {size &&
+                        <Animated.View
+                            style={[{
+                                position: 'absolute',
+                                left: ((1 - percent) * size) / 2,
+                                top: ((1 - percent) * size) / 2,
+                                width: percent * size,
+                                height: percent * size,
+                                borderRadius: percent * size / 2,
+                                transform: [{ scale: scaleValue }],
+                                opacity: opacityValue,
+                                backgroundColor: getColor(color)
+                            }]}
+                        />
+                    }
+                    <View onLayout={(event) => { this.setSize(event) }}>
+                        {children}
+                    </View>
+                    {size && badge && typeof badge.value === 'number' &&
+                        <View style={[
+                            styles.badgeContainer, {
+                            backgroundColor: getColor(badge.backgroundColor),
+                            top: size / 10,
+                            right: size / 10
+                        }]}>
+                            <Text style={[styles.badgeText, { color: getColor(badge.textColor) }]}>
+                                {badge.value}
+                            </Text>
+                        </View>
+                    }
+                </View>
+            </View>
+        );
+    };
+
+    /**
+     *
+     * @private
+     */
+    _highlight = () => {
+        if (!this.props.disabled) {
+            Animated.timing(this.state.scaleValue, {
+                toValue: 1,
+                duration: 150
+            }).start();
+            Animated.timing(this.state.opacityValue, {
+                toValue: this.state.maxOpacity,
+                duration: 100
+            }).start();
+        }
+    };
+
+    /**
+     *
+     * @private
+     */
+    _unHighlight = () => {
+        if (!this.props.disabled) {
+            Animated.timing(this.state.scaleValue, {
+                toValue: 0.001,
+                duration: 1500
+            }).start();
+            Animated.timing(this.state.opacityValue, {
+                toValue: 0
+            }).start();
+        }
+    };
+
+    /**
+     *
+     * @private
+     */
+    _handleResponderEnd = () => {
+        const { disabled, onPress } = this.props;
+
+        if (!disabled) {
+            this._unHighlight();
+            onPress && onPress();
+        }
+    };
+}
+
+const styles = {
+    badgeContainer: {
+        position: 'absolute',
+        borderRadius: 7,
+        width: 15,
+        height: 15
+    },
+    badgeText: {
+        lineHeight: 10,
+        textAlign: 'center',
+        fontSize: 10,
+        paddingTop: 8
+    }
+};
\ No newline at end of file
diff --git a/lib/index.js b/lib/index.js
index 90eaa77..5da465b 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -7,10 +7,9 @@ export { default as CheckboxGroup } from './CheckboxGroup';
 export { default as Drawer } from './Drawer';
 export { default as Divider } from './Divider';
 export { default as Icon } from './Icon';
-export { default as IconButton } from './IconButton';
+export { default as IconToggle } from './IconToggle';
 export { default as List } from './List';
 export { default as RadioButton } from './RadioButton';
 export { default as RadioButtonGroup } from './RadioButtonGroup';
-export { default as Ripple } from './Ripple';
 export { default as Subheader } from './Subheader';
 export { default as Toolbar } from './Toolbar';
\ No newline at end of file