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| import React from 'react';
import { connect } from 'react-redux';
import { delay } from 'lodash';
import { debug } from 'app/utilities/logger';
import { style } from 'app/styles';
import { ITimeplotState, ICommit, DispatchProps } from 'app/interfaces';
import { getTimeplotContainerState } from 'app/selectors';
import { setDates } from 'app/actions/setDates';
import { selectSingleCommit } from 'app/actions/commits';
import { debounce } from 'app/utilities/debounce';
import { throttle } from 'app/utilities/throttle';
import { ZoomContainer, ICustomZoom } from 'app/components/ZoomContainer';
import { TimeplotGraph } from 'app/components/TimeplotGraph';
import { EpochSpan } from 'app/components/EpochSpan';
import { CommaNumber } from 'app/components/CommaNumber';
import { SpinnerContainer } from 'app/components/SpinnerContainer';
import {
TimeplotPopup,
TIMEPLOT_POPUP_WIDTH,
} from 'app/components/TimeplotPopup';
import { filterCommitsForSpan } from 'app/utilities/commits';
interface TimeplotLocalState {
hoverMarkerLeft: number;
scrollLeft: number;
popupOpen: boolean;
timeplotRenders: number;
popupCommits: ICommit[];
popupStartDate?: Date;
popupEndDate?: Date;
customZooms: ICustomZoom[];
mouseInPopover: boolean;
zoom: number;
}
const initialState = {
// TODO: this should be a constant. I think it's used elsewhere?
hoverMarkerLeft: -40, // -40 = out of sight
scrollLeft: 0,
popupOpen: false,
timeplotRenders: 0,
popupCommits: [],
popupStartDate: null,
popupEndDate: null,
zoom: 100,
customZooms: [],
mouseInPopover: false,
};
const GRAPH_HEIGHT = 120;
const outerStyle = {
overflow: 'visible', // needed for popup
flex: `0 0 ${GRAPH_HEIGHT}px`,
};
const graphContainerStyle = {
_extends: ['altPanel', 'flexColumn'],
flex: `0 0 ${GRAPH_HEIGHT}px`,
minHeight: `${GRAPH_HEIGHT}px`,
position: 'relative',
marginTop: 5,
overflow: 'hidden',
};
const statsStyle = {
_extends: 'normalText',
width: '100%',
textAlign: 'center',
paddingTop: '@margins.small+px',
paddingBottom: '@margins.small+px',
position: 'absolute',
top: '@margins.medium+px',
textShadow: '2px 2px @colors.background',
};
const statsTextStyle = {
opacity: 0.8,
backgroundColor: '@colors.background',
};
const zoomStyle = {
position: 'absolute',
top: '@margins.small+px',
zIndex: 1,
};
const timeplotStyle = {
_extends: 'fill',
background: '@colors.background',
color: '@colors.text',
};
const markerStyle = {
position: 'absolute',
height: GRAPH_HEIGHT,
width: 10,
opacity: 0.5,
zIndex: 1,
top: 0,
};
const hoverMarkerStyle = {
_extends: markerStyle,
backgroundColor: '@colors.selectable',
};
export class Timeplot extends React.Component<
ITimeplotState & DispatchProps,
TimeplotLocalState
> {
readonly state: TimeplotLocalState = initialState;
private timeplotRef: any;
private outerRef: any;
private debouncedOnMouseLeave: (args: any) => void;
private debouncedOnMouseMove: (args: any) => void;
// we don't want to necessarily rerender on changes to these
private lastMouseMoveCoords: { pageX: number; pageY: number };
private lastMouseDownDate: Date;
private lastRerenderRequestedAt: Date;
constructor(props) {
super(props);
this.lastRerenderRequestedAt = Date.now() as any;
this.timeplotRef = React.createRef();
this.outerRef = React.createRef();
this.debouncedOnMouseLeave = debounce(this.onMouseLeave, 100);
this.debouncedOnMouseMove = throttle(this.onMouseMove, 100);
}
componentDidUpdate(prevProps, prevState) {
if (!this.timeplotRef.current) {
return;
}
this.timeplotRef.current.focus();
if (
prevProps.startDate !== this.props.startDate ||
prevProps.endDate !== this.props.endDate
) {
this.addCustomZooms();
}
if (this.lastRerenderRequestedAt < this.props.rerenderRequestedAt) {
debug('forcing timeplot rerender');
this.lastRerenderRequestedAt = this.props.rerenderRequestedAt;
this.setState({ timeplotRenders: this.state.timeplotRenders + 1 });
}
if (prevState.zoom !== this.state.zoom) {
this.scrollToStartDate();
}
}
render() {
const {
commits = [],
isFetching,
startDate,
endDate,
earliestCommitDate,
latestCommitDate,
highlightedCommitIds,
totalCommits,
} = this.props;
const outerLeft =
(this.outerRef.current &&
this.outerRef.current.getBoundingClientRect().x) ||
0;
const popupLeft =
// WARNING must manually test changes to this in
// vsCode plugin - the popup is in a slightly
// shifted position from the web
this.state.hoverMarkerLeft - this.state.scrollLeft <
TIMEPLOT_POPUP_WIDTH + 20
? // when popup is opening right of hover marker:
this.state.hoverMarkerLeft - this.state.scrollLeft + outerLeft - 20
: // when popup is opening to the left of the hover:
this.state.hoverMarkerLeft -
this.state.scrollLeft -
TIMEPLOT_POPUP_WIDTH +
outerLeft +
20;
return (
<div style={style(outerStyle)} ref={this.outerRef}>
<div style={style(graphContainerStyle)}>
<SpinnerContainer
isSpinning={!commits || commits.length === 0}
spinnerImageSize={0}
>
<ZoomContainer
onZoom={this.onZoom}
onMouseLeave={this.debouncedOnMouseLeave}
onScroll={this.onScroll}
customZooms={this.state.customZooms}
scrollLeft={this.state.scrollLeft}
style={style(zoomStyle)}
>
<TimeplotGraph
forceRender={this.state.timeplotRenders}
commits={this.props.commits}
style={style(timeplotStyle)}
ref={this.timeplotRef}
height={GRAPH_HEIGHT}
highlightedCommitIds={highlightedCommitIds}
startDate={startDate}
endDate={endDate}
earliestCommitDate={earliestCommitDate}
latestCommitDate={latestCommitDate}
onMouseMove={this.debouncedOnMouseMove}
onMouseDown={this.onMouseDown}
onMouseUp={this.onMouseUp}
/>
<div
style={style(hoverMarkerStyle, {
left: this.state.hoverMarkerLeft,
})}
onMouseMove={this.onMouseHoverMarker}
onMouseEnter={this.onMouseHoverMarker}
/>
</ZoomContainer>
<div style={style(statsStyle)}>
<span style={style(statsTextStyle)}>
{!isFetching ? 'Total of ' : 'Retrieving '}
<CommaNumber value={commits.length} />
{isFetching && (
<span>
{' '}
of <CommaNumber value={totalCommits} />
</span>
)}
<span> commits by </span>
<CommaNumber value={this.props.authors} />
<span> authors spanning </span>
<EpochSpan
firstEpochTime={earliestCommitDate}
secondEpochTime={latestCommitDate}
/>
</span>
</div>
</SpinnerContainer>
</div>
<TimeplotPopup
commits={this.state.popupCommits}
isOpen={this.state.popupOpen}
startDate={this.state.popupStartDate}
endDate={this.state.popupEndDate}
left={popupLeft}
onClose={this.onPopupClose}
onCommitSelected={this.onCommitSelected}
onMouseEnter={this.onMouseEnterPopup}
onMouseLeave={this.onMouseLeavePopup}
/>
</div>
);
}
private onPopupClose = () => {
this.setState({ popupOpen: false });
};
private onScroll = scrollLeft => {
this.setState({ scrollLeft });
};
private onZoom = newZoom => {
this.setState({
timeplotRenders: this.state.timeplotRenders + 1,
zoom: newZoom,
});
};
private onMouseEnterPopup = evt => {
this.setState({ mouseInPopover: true });
};
private onMouseLeavePopup = evt => {
this.setState({ mouseInPopover: false, popupOpen: false });
};
private onMouseLeave = _evt => {
delay(() => {
if (!this.state.mouseInPopover) {
this.setState({ popupOpen: false });
}
}, 250);
};
private onMouseMove = (evt, { startDate, endDate, relativeLeft }) => {
const popupCommits = filterCommitsForSpan(
this.props.commits,
startDate,
endDate
);
const { pageX, pageY } = evt;
// this enables greater agility, if the users vertical movement is
// greater than their horizontal, they might be headed to the popup
if (!this.lastMouseMoveCoords || pageY >= this.lastMouseMoveCoords.pageY) {
this.setState({
popupCommits,
popupOpen: true,
popupStartDate: startDate,
popupEndDate: endDate,
// +3 : the marker needs to not get in the way of clicking the graph underneath
// otherwise you end up clicking on the marker itself
hoverMarkerLeft: relativeLeft + 3,
});
}
this.lastMouseMoveCoords = { pageX, pageY };
};
private onMouseDown = (evt, { startDate }) => {
debug('Timeplot: onMouseDown', evt.shiftKey, startDate);
evt.preventDefault();
this.lastMouseDownDate = startDate;
const endDate = this.getEndDateForEvent(evt);
// set the startDate on down so the user gets instant feedback
// when starting click and drag select
this.setDates(startDate, endDate);
};
private onMouseUp = (evt, { startDate }) => {
debug(
'Timeplot: onMouseUp',
evt.shiftKey,
startDate,
this.lastMouseDownDate
);
evt.preventDefault();
if (!this.lastMouseDownDate) {
return;
}
if (startDate.toUTCString() !== this.lastMouseDownDate.toUTCString()) {
this.setDates(this.lastMouseDownDate, startDate);
}
this.lastMouseDownDate = null;
};
private onMouseHoverMarker = evt => {
this.setState({
hoverMarkerLeft:
this.state.hoverMarkerLeft + (evt.pageX - evt.clientX) + 3,
});
};
private onCommitSelected = (evt, commit, single) => {
evt.stopPropagation();
const { dispatch, commits } = this.props;
if (single) {
dispatch(selectSingleCommit(commit));
} else {
const epochAuthorDate = commit.authorDate * 1000;
const endDate = this.getEndDateForEvent(evt);
// setDates() will sort the dates ensuring actual endDate set in store
// is greater than startDate
this.setDates(epochAuthorDate, endDate);
}
};
private setDates(startDate, endDate) {
const { dispatch } = this.props;
dispatch(setDates(startDate, endDate));
}
private scrollToStartDate() {
const { startDate } = this.props;
if (this.state.zoom <= 100) {
this.setState({ scrollLeft: 0 });
} else if (startDate && this.timeplotRef.current) {
const { xScale } = this.timeplotRef.current;
this.setState({ scrollLeft: xScale(startDate * 1000) - 30 });
}
}
private addCustomZooms() {
const { startDate, endDate } = this.props;
if (!startDate || !this.timeplotRef.current) {
this.setState({ customZooms: [] });
return;
}
const { xScale, getScrollWidth } = this.timeplotRef.current;
const defaultedEndDate = endDate ? endDate * 1000 : new Date();
const spanLeft = xScale(startDate * 1000);
const spanRight = xScale(defaultedEndDate);
const span = spanRight - spanLeft + 15;
if (span <= 0) {
this.setState({ customZooms: [] });
return;
}
const scrollWidth = getScrollWidth();
this.setState({
customZooms: [
{
value: Math.floor((scrollWidth / span) * 100),
label: 'Zoom to selected time span',
},
],
});
}
private getEndDateForEvent(evt) {
return evt.shiftKey && this.props.endDate
? this.props.endDate * 1000
: evt.shiftKey && this.props.startDate
? this.props.startDate * 1000
: null;
}
}
export default connect(getTimeplotContainerState)(Timeplot);
|