267 lines
8.8 KiB
JavaScript
267 lines
8.8 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule TouchableNativeFeedback
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*/
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'use strict';
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var Platform = require('Platform');
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var React = require('React');
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var ReactNative = require('ReactNative');
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var Touchable = require('Touchable');
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var TouchableWithoutFeedback = require('TouchableWithoutFeedback');
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var UIManager = require('UIManager');
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var ensurePositiveDelayProps = require('ensurePositiveDelayProps');
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var processColor = require('processColor');
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var PropTypes = React.PropTypes;
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var rippleBackgroundPropType = PropTypes.shape({
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type: React.PropTypes.oneOf(['RippleAndroid']),
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color: PropTypes.number,
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borderless: PropTypes.bool,
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});
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var themeAttributeBackgroundPropType = PropTypes.shape({
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type: React.PropTypes.oneOf(['ThemeAttrAndroid']),
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attribute: PropTypes.string.isRequired,
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});
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var backgroundPropType = PropTypes.oneOfType([
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rippleBackgroundPropType,
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themeAttributeBackgroundPropType,
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]);
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type Event = Object;
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var PRESS_RETENTION_OFFSET = {top: 20, left: 20, right: 20, bottom: 30};
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/**
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* A wrapper for making views respond properly to touches (Android only).
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* On Android this component uses native state drawable to display touch
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* feedback.
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*
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* At the moment it only supports having a single View instance as a child
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* node, as it's implemented by replacing that View with another instance of
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* RCTView node with some additional properties set.
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*
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* Background drawable of native feedback touchable can be customized with
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* `background` property.
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*
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* Example:
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*
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* ```
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* renderButton: function() {
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* return (
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* <TouchableNativeFeedback
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* onPress={this._onPressButton}
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* background={TouchableNativeFeedback.SelectableBackground()}>
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* <View style={{width: 150, height: 100, backgroundColor: 'red'}}>
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* <Text style={{margin: 30}}>Button</Text>
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* </View>
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* </TouchableNativeFeedback>
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* );
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* },
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* ```
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*/
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var TouchableNativeFeedback = React.createClass({
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propTypes: {
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...TouchableWithoutFeedback.propTypes,
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/**
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* Determines the type of background drawable that's going to be used to
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* display feedback. It takes an object with `type` property and extra data
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* depending on the `type`. It's recommended to use one of the static
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* methods to generate that dictionary.
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*/
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background: backgroundPropType,
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/**
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* Set to true to add the ripple effect to the foreground of the view, instead of the
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* background. This is useful if one of your child views has a background of its own, or you're
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* e.g. displaying images, and you don't want the ripple to be covered by them.
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*
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* Check TouchableNativeFeedback.canUseNativeForeground() first, as this is only available on
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* Android 6.0 and above. If you try to use this on older versions you will get a warning and
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* fallback to background.
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*/
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useForeground: PropTypes.bool,
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},
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statics: {
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/**
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* Creates an object that represents android theme's default background for
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* selectable elements (?android:attr/selectableItemBackground).
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*/
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SelectableBackground: function() {
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return {type: 'ThemeAttrAndroid', attribute: 'selectableItemBackground'};
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},
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/**
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* Creates an object that represent android theme's default background for borderless
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* selectable elements (?android:attr/selectableItemBackgroundBorderless).
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* Available on android API level 21+.
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*/
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SelectableBackgroundBorderless: function() {
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return {type: 'ThemeAttrAndroid', attribute: 'selectableItemBackgroundBorderless'};
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},
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/**
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* Creates an object that represents ripple drawable with specified color (as a
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* string). If property `borderless` evaluates to true the ripple will
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* render outside of the view bounds (see native actionbar buttons as an
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* example of that behavior). This background type is available on Android
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* API level 21+.
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*
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* @param color The ripple color
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* @param borderless If the ripple can render outside it's bounds
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*/
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Ripple: function(color: string, borderless: boolean) {
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return {type: 'RippleAndroid', color: processColor(color), borderless: borderless};
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},
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canUseNativeForeground: function() {
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return Platform.OS === 'android' && Platform.Version >= 23;
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}
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},
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mixins: [Touchable.Mixin],
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getDefaultProps: function() {
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return {
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background: this.SelectableBackground(),
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};
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},
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getInitialState: function() {
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return this.touchableGetInitialState();
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},
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componentDidMount: function() {
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ensurePositiveDelayProps(this.props);
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},
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componentWillReceiveProps: function(nextProps) {
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ensurePositiveDelayProps(nextProps);
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},
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/**
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* `Touchable.Mixin` self callbacks. The mixin will invoke these if they are
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* defined on your component.
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*/
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touchableHandleActivePressIn: function(e: Event) {
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this.props.onPressIn && this.props.onPressIn(e);
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this._dispatchPressedStateChange(true);
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this._dispatchHotspotUpdate(this.pressInLocation.locationX, this.pressInLocation.locationY);
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},
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touchableHandleActivePressOut: function(e: Event) {
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this.props.onPressOut && this.props.onPressOut(e);
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this._dispatchPressedStateChange(false);
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},
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touchableHandlePress: function(e: Event) {
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this.props.onPress && this.props.onPress(e);
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},
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touchableHandleLongPress: function(e: Event) {
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this.props.onLongPress && this.props.onLongPress(e);
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},
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touchableGetPressRectOffset: function() {
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// Always make sure to predeclare a constant!
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return this.props.pressRetentionOffset || PRESS_RETENTION_OFFSET;
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},
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touchableGetHitSlop: function() {
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return this.props.hitSlop;
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},
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touchableGetHighlightDelayMS: function() {
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return this.props.delayPressIn;
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},
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touchableGetLongPressDelayMS: function() {
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return this.props.delayLongPress;
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},
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touchableGetPressOutDelayMS: function() {
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return this.props.delayPressOut;
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},
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_handleResponderMove: function(e) {
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this.touchableHandleResponderMove(e);
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this._dispatchHotspotUpdate(e.nativeEvent.locationX, e.nativeEvent.locationY);
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},
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_dispatchHotspotUpdate: function(destX, destY) {
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UIManager.dispatchViewManagerCommand(
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ReactNative.findNodeHandle(this),
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UIManager.RCTView.Commands.hotspotUpdate,
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[destX || 0, destY || 0]
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);
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},
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_dispatchPressedStateChange: function(pressed) {
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UIManager.dispatchViewManagerCommand(
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ReactNative.findNodeHandle(this),
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UIManager.RCTView.Commands.setPressed,
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[pressed]
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);
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},
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render: function() {
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const child = React.Children.only(this.props.children);
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let children = child.props.children;
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if (Touchable.TOUCH_TARGET_DEBUG && child.type.displayName === 'View') {
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if (!Array.isArray(children)) {
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children = [children];
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}
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children.push(Touchable.renderDebugView({color: 'brown', hitSlop: this.props.hitSlop}));
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}
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if (this.props.useForeground && !TouchableNativeFeedback.canUseNativeForeground()) {
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console.warn(
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'Requested foreground ripple, but it is not available on this version of Android. ' +
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'Consider calling TouchableNativeFeedback.canUseNativeForeground() and using a different ' +
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'Touchable if the result is false.');
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}
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const drawableProp =
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this.props.useForeground && TouchableNativeFeedback.canUseNativeForeground()
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? 'nativeForegroundAndroid'
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: 'nativeBackgroundAndroid';
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var childProps = {
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...child.props,
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[drawableProp]: this.props.background,
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accessible: this.props.accessible !== false,
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accessibilityLabel: this.props.accessibilityLabel,
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accessibilityComponentType: this.props.accessibilityComponentType,
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accessibilityTraits: this.props.accessibilityTraits,
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children,
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testID: this.props.testID,
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onLayout: this.props.onLayout,
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hitSlop: this.props.hitSlop,
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onStartShouldSetResponder: this.touchableHandleStartShouldSetResponder,
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onResponderTerminationRequest: this.touchableHandleResponderTerminationRequest,
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onResponderGrant: this.touchableHandleResponderGrant,
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onResponderMove: this._handleResponderMove,
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onResponderRelease: this.touchableHandleResponderRelease,
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onResponderTerminate: this.touchableHandleResponderTerminate,
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};
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// We need to clone the actual element so that the ripple background drawable
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// can be applied directly to the background of this element rather than to
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// a wrapper view as done in other Touchable*
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return React.cloneElement(
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child,
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childProps
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);
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}
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});
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module.exports = TouchableNativeFeedback;
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