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67 lines
2.2 KiB
TypeScript
67 lines
2.2 KiB
TypeScript
/*
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Copyright 2021 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import React from "react";
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import { replaceableComponent } from "../../../utils/replaceableComponent";
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import classNames from "classnames";
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import { CSSProperties } from "react";
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interface WaveformCSSProperties extends CSSProperties {
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'--barHeight': number;
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}
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interface IProps {
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relHeights: number[]; // relative heights (0-1)
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progress: number; // percent complete, 0-1, default 100%
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}
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interface IState {
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}
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/**
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* A simple waveform component. This renders bars (centered vertically) for each
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* height provided in the component properties. Updating the properties will update
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* the rendered waveform.
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*
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* For CSS purposes, a mx_Waveform_bar_100pct class is added when the bar should be
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* "filled", as a demonstration of the progress property.
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*/
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@replaceableComponent("views.audio_messages.Waveform")
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export default class Waveform extends React.PureComponent<IProps, IState> {
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public static defaultProps = {
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progress: 1,
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};
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public render() {
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return <div className='mx_Waveform'>
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{ this.props.relHeights.map((h, i) => {
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const progress = this.props.progress;
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const isCompleteBar = (i / this.props.relHeights.length) <= progress && progress > 0;
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const classes = classNames({
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'mx_Waveform_bar': true,
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'mx_Waveform_bar_100pct': isCompleteBar,
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});
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return <span
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key={i}
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style={{
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"--barHeight": h,
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} as WaveformCSSProperties}
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className={classes}
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/>;
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}) }
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</div>;
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}
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}
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