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import React from "react"
import ReactDOM from "react-dom"
import {connect} from 'react-redux'
import shallowEqual from "shallowequal"
import {toggleEventLogFilter, toggleEventLogVisibility} from "../ducks/eventLog"
import AutoScroll from "./helpers/AutoScroll";
import {calcVScroll} from "./helpers/VirtualScroll"
import {ToggleButton} from "./common";
function LogIcon({event}) {
let icon = {web: "html5", debug: "bug"}[event.level] || "info";
return <i className={`fa fa-fw fa-${icon}`}></i>
}
function LogEntry({event, registerHeight}) {
return <div ref={registerHeight}>
<LogIcon event={event}/>
{event.message}
</div>;
}
class EventLogContents extends React.Component {
static defaultProps = {
rowHeight: 18,
};
constructor(props) {
super(props);
this.heights = {};
this.state = {vScroll: calcVScroll()};
this.onViewportUpdate = this.onViewportUpdate.bind(this);
}
componentDidMount() {
window.addEventListener("resize", this.onViewportUpdate);
this.onViewportUpdate();
}
componentWillUnmount() {
window.removeEventListener("resize", this.onViewportUpdate);
}
componentDidUpdate() {
this.onViewportUpdate();
}
onViewportUpdate() {
const viewport = ReactDOM.findDOMNode(this);
const vScroll = calcVScroll({
itemCount: this.props.events.length,
rowHeight: this.props.rowHeight,
viewportTop: viewport.scrollTop,
viewportHeight: viewport.offsetHeight,
itemHeights: this.props.events.map(entry => this.heights[entry.id]),
});
if (!shallowEqual(this.state.vScroll, vScroll)) {
this.setState({vScroll});
}
}
setHeight(id, node) {
if (node && !this.heights[id]) {
const height = node.offsetHeight;
if (this.heights[id] !== height) {
this.heights[id] = height;
this.onViewportUpdate();
}
}
}
render() {
const vScroll = this.state.vScroll;
const events = this.props.events
.slice(vScroll.start, vScroll.end)
.map(event =>
<LogEntry
event={event}
key={event.id}
registerHeight={(node) => this.setHeight(event.id, node)}
/>
);
return (
<pre onScroll={this.onViewportUpdate}>
<div style={{ height: vScroll.paddingTop }}></div>
{events}
<div style={{ height: vScroll.paddingBottom }}></div>
</pre>
);
}
}
EventLogContents = AutoScroll(EventLogContents);
const EventLogContentsContainer = connect(
state => ({
events: state.eventLog.filteredEvents
})
)(EventLogContents);
export const ToggleEventLog = connect(
state => ({
checked: state.eventLog.visible
}),
dispatch => ({
onToggle: () => dispatch(toggleEventLogVisibility())
})
)(ToggleButton);
const ToggleFilter = connect(
(state, ownProps) => ({
checked: state.eventLog.filter[ownProps.text]
}),
(dispatch, ownProps) => ({
onToggle: () => dispatch(toggleEventLogFilter(ownProps.text))
})
)(ToggleButton);
const EventLog = ({close}) =>
<div className="eventlog">
<div>
Eventlog
<div className="pull-right">
<ToggleFilter text="debug"/>
<ToggleFilter text="info"/>
<ToggleFilter text="web"/>
<i onClick={close} className="fa fa-close"></i>
</div>
</div>
<EventLogContentsContainer/>
</div>;
EventLog.propTypes = {
close: React.PropTypes.func.isRequired
};
const EventLogContainer = connect(
undefined,
dispatch => ({
close: () => dispatch(toggleEventLogVisibility())
})
)(EventLog);
export default EventLogContainer;
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