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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
"use strict";
const {
createRef,
PureComponent,
} = require("resource://devtools/client/shared/vendor/react.js");
const dom = require("resource://devtools/client/shared/vendor/react-dom-factories.js");
const PropTypes = require("resource://devtools/client/shared/vendor/react-prop-types.js");
class KeyframesProgressBar extends PureComponent {
static get propTypes() {
return {
addAnimationsCurrentTimeListener: PropTypes.func.isRequired,
animation: PropTypes.object.isRequired,
getAnimationsCurrentTime: PropTypes.func.isRequired,
removeAnimationsCurrentTimeListener: PropTypes.func.isRequired,
simulateAnimationForKeyframesProgressBar: PropTypes.func.isRequired,
timeScale: PropTypes.object.isRequired,
};
}
constructor(props) {
super(props);
this._progressBarRef = createRef();
this.onCurrentTimeUpdated = this.onCurrentTimeUpdated.bind(this);
}
componentDidMount() {
const { addAnimationsCurrentTimeListener } = this.props;
this.setupAnimation(this.props);
addAnimationsCurrentTimeListener(this.onCurrentTimeUpdated);
}
UNSAFE_componentWillReceiveProps(nextProps) {
const { animation, getAnimationsCurrentTime, timeScale } = nextProps;
this.setupAnimation(nextProps);
this.updateOffset(getAnimationsCurrentTime(), animation, timeScale);
}
componentWillUnmount() {
const { removeAnimationsCurrentTimeListener } = this.props;
removeAnimationsCurrentTimeListener(this.onCurrentTimeUpdated);
this.simulatedAnimation = null;
}
onCurrentTimeUpdated(currentTime) {
const { animation, timeScale } = this.props;
this.updateOffset(currentTime, animation, timeScale);
}
updateOffset(currentTime, animation, timeScale) {
const { createdTime, playbackRate } = animation.state;
const time =
(timeScale.minStartTime + currentTime - createdTime) * playbackRate;
if (isNaN(time)) {
// Setting an invalid currentTime will throw so bail out if time is not a number for
// any reason.
return;
}
this.simulatedAnimation.currentTime = time;
const position =
this.simulatedAnimation.effect.getComputedTiming().progress;
// onCurrentTimeUpdated is bound to requestAnimationFrame.
// As to update the component too frequently has performance issue if React controlled,
this._progressBarRef.current.style.marginInlineStart = `${position * 100}%`;
}
setupAnimation(props) {
const { animation, simulateAnimationForKeyframesProgressBar } = props;
if (this.simulatedAnimation) {
this.simulatedAnimation.cancel();
}
const timing = Object.assign({}, animation.state, {
iterations: animation.state.iterationCount || Infinity,
});
this.simulatedAnimation = simulateAnimationForKeyframesProgressBar(timing);
}
render() {
return dom.div(
{ className: "keyframes-progress-bar-area" },
dom.div({
className: "indication-bar keyframes-progress-bar",
ref: this._progressBarRef,
})
);
}
}
module.exports = KeyframesProgressBar;