react-native/Libraries/Inspector/Inspector.js

192 lines
5.3 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 Inspector
* @flow
*/
'use strict';
var Dimensions = require('Dimensions');
var InspectorOverlay = require('InspectorOverlay');
var InspectorPanel = require('InspectorPanel');
var InspectorUtils = require('InspectorUtils');
var React = require('React');
var StyleSheet = require('StyleSheet');
var UIManager = require('NativeModules').UIManager;
var View = require('View');
if (window.__REACT_DEVTOOLS_GLOBAL_HOOK__) {
// required for devtools to be able to edit react native styles
window.__REACT_DEVTOOLS_GLOBAL_HOOK__.resolveRNStyle = require('flattenStyle');
}
class Inspector extends React.Component {
_subs: ?Array<() => void>;
constructor(props: Object) {
super(props);
this.state = {
devtoolsAgent: null,
panelPos: 'bottom',
inspecting: true,
perfing: false,
inspected: null,
};
}
componentDidMount() {
if (window.__REACT_DEVTOOLS_GLOBAL_HOOK__) {
this.attachToDevtools = this.attachToDevtools.bind(this);
window.__REACT_DEVTOOLS_GLOBAL_HOOK__.on('react-devtools', this.attachToDevtools);
// if devtools is already started
if (window.__REACT_DEVTOOLS_GLOBAL_HOOK__.reactDevtoolsAgent) {
this.attachToDevtools(window.__REACT_DEVTOOLS_GLOBAL_HOOK__.reactDevtoolsAgent);
}
}
}
componentWillUnmount() {
if (this._subs) {
this._subs.map(fn => fn());
}
if (window.__REACT_DEVTOOLS_GLOBAL_HOOK__) {
window.__REACT_DEVTOOLS_GLOBAL_HOOK__.off('react-devtools', this.attachToDevtools);
}
}
attachToDevtools(agent: Object) {
var _hideWait = null;
var hlSub = agent.sub('highlight', ({node, name, props}) => {
clearTimeout(_hideWait);
UIManager.measure(node, (x, y, width, height, left, top) => {
this.setState({
hierarchy: [],
inspected: {
frame: {left, top, width, height},
style: props ? props.style : {},
},
});
});
});
var hideSub = agent.sub('hideHighlight', () => {
if (this.state.inspected === null) {
return;
}
// we wait to actually hide in order to avoid flicker
_hideWait = setTimeout(() => {
this.setState({
inspected: null,
});
}, 100);
});
this._subs = [hlSub, hideSub];
agent.on('shutdown', () => {
this.setState({devtoolsAgent: null});
this._subs = null;
});
this.setState({
devtoolsAgent: agent,
});
}
setSelection(i: number) {
var instance = this.state.hierarchy[i];
var publicInstance = instance.getPublicInstance();
UIManager.measure(React.findNodeHandle(instance), (x, y, width, height, left, top) => {
this.setState({
inspected: {
frame: {left, top, width, height},
style: publicInstance.props ? publicInstance.props.style : {},
},
selection: i,
});
});
}
onTouchInstance(instance: Object, frame: Object, pointerY: number) {
if (this.state.devtoolsAgent) {
this.state.devtoolsAgent.selectFromReactInstance(instance, true);
}
var hierarchy = InspectorUtils.getOwnerHierarchy(instance);
var publicInstance = instance.getPublicInstance();
var props = publicInstance.props || {};
this.setState({
panelPos: pointerY > Dimensions.get('window').height / 2 ? 'top' : 'bottom',
selection: hierarchy.length - 1,
hierarchy,
inspected: {
style: props.style || {},
frame,
},
});
}
setPerfing(val: bool) {
this.setState({
perfing: val,
inspecting: false,
inspected: null,
});
}
setInspecting(val: bool) {
this.setState({
inspecting: val,
inspected: null
});
}
render() {
var panelContainerStyle = (this.state.panelPos === 'bottom') ? {bottom: 0} : {top: 0};
return (
<View style={styles.container} pointerEvents="box-none">
{this.state.inspecting &&
<InspectorOverlay
rootTag={this.props.rootTag}
inspected={this.state.inspected}
inspectedViewTag={this.props.inspectedViewTag}
onTouchInstance={this.onTouchInstance.bind(this)}
/>}
<View style={[styles.panelContainer, panelContainerStyle]}>
<InspectorPanel
devtoolsIsOpen={!!this.state.devtoolsAgent}
inspecting={this.state.inspecting}
perfing={this.state.perfing}
setPerfing={this.setPerfing.bind(this)}
setInspecting={this.setInspecting.bind(this)}
inspected={this.state.inspected}
hierarchy={this.state.hierarchy}
selection={this.state.selection}
setSelection={this.setSelection.bind(this)}
/>
</View>
</View>
);
}
}
var styles = StyleSheet.create({
container: {
position: 'absolute',
backgroundColor: 'transparent',
top: 0,
left: 0,
right: 0,
bottom: 0,
},
panelContainer: {
position: 'absolute',
left: 0,
right: 0,
},
});
module.exports = Inspector;