react-native/Libraries/ReactIOS/InspectorOverlay.js

113 lines
2.8 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule InspectorOverlay
*/
'use strict';
var Dimensions = require('Dimensions');
var Inspector = require('Inspector');
var React = require('React');
var StyleSheet = require('StyleSheet');
var Text = require('Text');
var UIManager = require('NativeModules').UIManager;
var View = require('View');
var InspectorOverlay = React.createClass({
getInitialState: function() {
return {
frame: null,
hierarchy: [],
};
},
findViewForTouchEvent: function(e) {
var {locationX, locationY} = e.nativeEvent.touches[0];
UIManager.findSubviewIn(
this.props.inspectedViewTag,
[locationX, locationY],
(nativeViewTag, left, top, width, height) => {
var instance = Inspector.findInstanceByNativeTag(this.props.rootTag, nativeViewTag);
var hierarchy = Inspector.getOwnerHierarchy(instance);
this.setState({
hierarchy,
frame: {left, top, width, height}
});
}
);
},
shouldSetResponser: function(e) {
this.findViewForTouchEvent(e);
return true;
},
render: function() {
var content = [];
if (this.state.frame) {
var distanceToTop = this.state.frame.top;
var distanceToBottom = Dimensions.get('window').height -
(this.state.frame.top + this.state.frame.height);
var justifyContent = distanceToTop > distanceToBottom
? 'flex-start'
: 'flex-end';
content.push(<View style={[styles.frame, this.state.frame]} />);
content.push(<ElementProperties hierarchy={this.state.hierarchy} />);
}
return (
<View
onStartShouldSetResponder={this.shouldSetResponser}
onResponderMove={this.findViewForTouchEvent}
style={[styles.inspector, {justifyContent}]}>
{content}
</View>
);
}
});
var ElementProperties = React.createClass({
render: function() {
var path = this.props.hierarchy.map((instance) => instance.getName()).join(' > ');
return (
<View style={styles.info}>
<Text style={styles.path}>
{path}
</Text>
</View>
);
}
});
var styles = StyleSheet.create({
inspector: {
backgroundColor: 'rgba(255,255,255,0.8)',
position: 'absolute',
left: 0,
top: 0,
right: 0,
bottom: 0,
},
frame: {
position: 'absolute',
backgroundColor: 'rgba(155,155,255,0.3)',
},
info: {
backgroundColor: 'rgba(0, 0, 0, 0.7)',
padding: 10,
},
path: {
color: 'white',
fontSize: 9,
}
});
module.exports = InspectorOverlay;