427 lines
13 KiB
TypeScript
427 lines
13 KiB
TypeScript
import appDocsManager from "../lib/appManagers/appDocsManager";
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import { RichTextProcessor } from "../lib/richtextprocessor";
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import { formatDate } from "./wrappers";
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import ProgressivePreloader from "./preloader";
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import { CancellablePromise } from "../lib/polyfill";
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import { MediaProgressLine } from "../lib/mediaPlayer";
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import appAudio from "./appAudio";
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import { MTDocument } from "../types";
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// https://github.com/LonamiWebs/Telethon/blob/4393ec0b83d511b6a20d8a20334138730f084375/telethon/utils.py#L1285
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export function decodeWaveform(waveform: Uint8Array | number[]) {
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if(!(waveform instanceof Uint8Array)) {
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waveform = new Uint8Array(waveform);
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}
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var bitCount = waveform.length * 8;
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var valueCount = bitCount / 5 | 0;
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if(!valueCount) {
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return new Uint8Array([]);
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}
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var dataView = new DataView(waveform.buffer);
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var result = new Uint8Array(valueCount);
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for(var i = 0; i < valueCount; i++) {
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var byteIndex = i * 5 / 8 | 0;
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var bitShift = i * 5 % 8;
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var value = dataView.getUint16(byteIndex, true);
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result[i] = (value >> bitShift) & 0b00011111;
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}
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/* var byteIndex = (valueCount - 1) / 8 | 0;
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var bitShift = (valueCount - 1) % 8;
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if(byteIndex == waveform.length - 1) {
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var value = waveform[byteIndex];
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} else {
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var value = dataView.getUint16(byteIndex, true);
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}
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console.log('decoded waveform, setting last value:', value, byteIndex, bitShift);
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result[valueCount - 1] = (value >> bitShift) & 0b00011111; */
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return result;
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}
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function wrapVoiceMessage(doc: MTDocument, audioEl: AudioElement) {
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audioEl.classList.add('is-voice');
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const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
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svg.classList.add('audio-waveform');
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svg.setAttributeNS(null, 'width', '190');
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svg.setAttributeNS(null, 'height', '23');
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svg.setAttributeNS(null, 'viewBox', '0 0 190 23');
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const timeDiv = document.createElement('div');
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timeDiv.classList.add('audio-time');
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audioEl.append(svg, timeDiv);
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const barWidth = 2;
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const barMargin = 1;
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const barHeightMin = 2;
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const barHeightMax = 23;
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let waveform = doc.attributes[0].waveform || [];
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waveform = decodeWaveform(waveform.slice());
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//console.log('decoded waveform:', waveform);
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const normValue = Math.max(...waveform);
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const wfSize = waveform.length ? waveform.length : 100;
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const availW = 190;
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const barCount = Math.min((availW / (barWidth + barMargin)) | 0, wfSize);
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let maxValue = 0;
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const maxDelta = barHeightMax - barHeightMin;
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let html = '';
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for(let i = 0, barX = 0, sumI = 0; i < wfSize; ++i) {
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const value = waveform[i] || 0;
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if((sumI + barCount) >= wfSize) { // draw bar
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sumI = sumI + barCount - wfSize;
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if(sumI < (barCount + 1) / 2) {
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if(maxValue < value) maxValue = value;
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}
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const bar_value = Math.max(((maxValue * maxDelta) + ((normValue + 1) / 2)) / (normValue + 1), barHeightMin);
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const h = `
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<rect x="${barX}" y="${barHeightMax - bar_value}" width="2" height="${bar_value}" rx="1" ry="1"></rect>
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`;
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html += h;
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barX += barWidth + barMargin;
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if(sumI < (barCount + 1) / 2) {
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maxValue = 0;
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} else {
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maxValue = value;
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}
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} else {
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if(maxValue < value) maxValue = value;
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sumI += barCount;
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}
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}
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svg.insertAdjacentHTML('beforeend', html);
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const rects = Array.from(svg.children) as HTMLElement[];
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let progress = audioEl.querySelector('.audio-waveform') as HTMLDivElement;
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const onLoad = () => {
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let interval = 0;
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let lastIndex = 0;
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let audio = audioEl.audio;
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if(!audio.paused || (audio.currentTime > 0 && audio.currentTime != audio.duration)) {
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lastIndex = Math.round(audio.currentTime / audio.duration * barCount);
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rects.slice(0, lastIndex + 1).forEach(node => node.classList.add('active'));
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}
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let start = () => {
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clearInterval(interval);
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interval = setInterval(() => {
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if(lastIndex > svg.childElementCount || isNaN(audio.duration) || audio.paused) {
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clearInterval(interval);
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return;
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}
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lastIndex = Math.round(audio.currentTime / audio.duration * barCount);
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//svg.children[lastIndex].setAttributeNS(null, 'fill', '#000');
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//svg.children[lastIndex].classList.add('active'); #Иногда пропускает полоски..
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rects.slice(0, lastIndex + 1).forEach(node => node.classList.add('active'));
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//++lastIndex;
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//console.log('lastIndex:', lastIndex, audio.currentTime);
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//}, duration * 1000 / svg.childElementCount | 0/* 63 * duration / 10 */);
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}, 20);
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};
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if(!audio.paused) {
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start();
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}
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audioEl.addAudioListener('playing', () => {
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//rects.forEach(node => node.classList.remove('active'));
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start();
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});
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audioEl.addAudioListener('pause', () => {
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clearInterval(interval);
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});
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audioEl.addAudioListener('ended', () => {
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clearInterval(interval);
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rects.forEach(node => node.classList.remove('active'));
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});
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let mousedown = false, mousemove = false;
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progress.addEventListener('mouseleave', (e) => {
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if(mousedown) {
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audio.play();
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mousedown = false;
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}
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mousemove = false;
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})
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progress.addEventListener('mousemove', (e) => {
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mousemove = true;
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if(mousedown) scrub(e);
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});
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progress.addEventListener('mousedown', (e) => {
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e.preventDefault();
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if(!audio.paused) {
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audio.pause();
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scrub(e);
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mousedown = true;
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}
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});
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progress.addEventListener('mouseup', (e) => {
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if (mousemove && mousedown) {
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audio.play();
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mousedown = false;
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}
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});
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progress.addEventListener('click', (e) => {
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if(!audio.paused) scrub(e);
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});
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function scrub(e: MouseEvent) {
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const scrubTime = e.offsetX / availW /* width */ * audio.duration;
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lastIndex = Math.round(scrubTime / audio.duration * barCount);
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rects.slice(0, lastIndex + 1).forEach(node => node.classList.add('active'));
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for(let i = lastIndex + 1; i < rects.length; ++i) {
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rects[i].classList.remove('active')
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}
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audio.currentTime = scrubTime;
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}
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return () => {
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clearInterval(interval);
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progress.remove();
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progress = null;
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audio = null;
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};
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};
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return onLoad;
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}
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function wrapAudio(doc: MTDocument, audioEl: AudioElement) {
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const withTime = !!+audioEl.getAttribute('with-time');
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const title = doc.audioTitle || doc.file_name;
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let subtitle = doc.audioPerformer ? RichTextProcessor.wrapPlainText(doc.audioPerformer) : '';
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if(withTime) {
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subtitle += (subtitle ? ' · ' : '') + formatDate(doc.date);
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} else if(!subtitle) {
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subtitle = 'Unknown Artist';
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}
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const html = `
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<div class="audio-details">
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<div class="audio-title">${title}</div>
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<div class="audio-subtitle">${subtitle}</div>
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<div class="audio-time"></div>
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</div>`;
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audioEl.insertAdjacentHTML('beforeend', html);
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const onLoad = () => {
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const subtitleDiv = audioEl.querySelector('.audio-subtitle') as HTMLDivElement;
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let launched = false;
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let progressLine = new MediaProgressLine(audioEl.audio);
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audioEl.addAudioListener('ended', () => {
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audioEl.classList.remove('audio-show-progress');
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// Reset subtitle
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subtitleDiv.innerHTML = subtitle;
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launched = false;
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});
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const onPlaying = () => {
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if(!launched) {
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audioEl.classList.add('audio-show-progress');
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launched = true;
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subtitleDiv.innerHTML = '';
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if(progressLine) {
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subtitleDiv.append(progressLine.container);
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}
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}
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};
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audioEl.addAudioListener('playing', onPlaying);
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if(!audioEl.audio.paused || audioEl.audio.currentTime > 0) {
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onPlaying();
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}
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return () => {
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progressLine.removeListeners();
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progressLine.container.remove();
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progressLine = null;
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};
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};
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return onLoad;
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}
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export default class AudioElement extends HTMLElement {
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public audio: HTMLAudioElement;
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public preloader: ProgressivePreloader;
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private attachedHandlers: {[name: string]: any[]} = {};
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private onTypeDisconnect: () => void;
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constructor() {
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super();
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// элемент создан
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}
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connectedCallback() {
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// браузер вызывает этот метод при добавлении элемента в документ
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// (может вызываться много раз, если элемент многократно добавляется/удаляется)
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this.classList.add('audio');
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const mid = +this.getAttribute('message-id');
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const docID = this.getAttribute('doc-id');
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const doc = appDocsManager.getDoc(docID);
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const uploading = +doc.id < 0;
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const durationStr = String(doc.duration | 0).toHHMMSS(true);
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this.innerHTML = `
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<div class="audio-toggle audio-ico tgico-largeplay"></div>
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<div class="audio-download">${uploading ? '' : '<div class="tgico-download"></div>'}</div>`;
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const onTypeLoad = doc.type == 'voice' ? wrapVoiceMessage(doc, this) : wrapAudio(doc, this);
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const downloadDiv = this.querySelector('.audio-download') as HTMLDivElement;
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const audioTimeDiv = this.querySelector('.audio-time') as HTMLDivElement;
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audioTimeDiv.innerHTML = durationStr;
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let preloader: ProgressivePreloader = this.preloader;
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let promise: CancellablePromise<Blob>;
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const onLoad = () => {
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const audio = this.audio = appAudio.addAudio(doc, mid);
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this.onTypeDisconnect = onTypeLoad();
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const toggle = this.querySelector('.audio-toggle') as HTMLDivElement;
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const onPlaying = () => {
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audioTimeDiv.innerText = String(audio.currentTime | 0).toHHMMSS(true) + ' / ' + durationStr;
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if(!audio.paused) {
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toggle.classList.remove('tgico-largeplay');
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toggle.classList.add('tgico-largepause');
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}
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};
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if(!audio.paused || (audio.currentTime > 0 && audio.currentTime != audio.duration)) {
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onPlaying();
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audioTimeDiv.innerText = String(audio.currentTime | 0).toHHMMSS(true) + ' / ' + durationStr;
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}
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toggle.addEventListener('click', () => {
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if(audio.paused) audio.play();
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else audio.pause();
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});
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this.addAudioListener('ended', () => {
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toggle.classList.add('tgico-largeplay');
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toggle.classList.remove('tgico-largepause');
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});
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this.addAudioListener('timeupdate', () => {
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audioTimeDiv.innerText = String(audio.currentTime | 0).toHHMMSS(true) + ' / ' + durationStr;
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});
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this.addAudioListener('pause', () => {
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toggle.classList.add('tgico-largeplay');
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toggle.classList.remove('tgico-largepause');
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});
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this.addAudioListener('playing', onPlaying);
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};
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if(!uploading) {
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const onClick = () => {
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if(!promise) {
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if(!preloader) {
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preloader = new ProgressivePreloader(null, true);
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}
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promise = appDocsManager.downloadDoc(doc.id);
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preloader.attach(downloadDiv, true, promise);
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promise.then(() => {
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preloader = null;
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downloadDiv.classList.remove('downloading');
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downloadDiv.remove();
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this.removeEventListener('click', onClick);
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onLoad();
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});
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downloadDiv.classList.add('downloading');
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} else {
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downloadDiv.classList.remove('downloading');
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promise.cancel();
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promise = null;
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}
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};
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this.addEventListener('click', onClick);
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this.click();
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} else {
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this.preloader.attach(this.querySelector('.audio-download'), false);
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//onLoad();
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}
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}
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public addAudioListener(name: string, callback: any) {
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if(!this.attachedHandlers[name]) this.attachedHandlers[name] = [];
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this.attachedHandlers[name].push(callback);
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this.audio.addEventListener(name, callback);
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}
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disconnectedCallback() {
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// браузер вызывает этот метод при удалении элемента из документа
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// (может вызываться много раз, если элемент многократно добавляется/удаляется)
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if(this.onTypeDisconnect) {
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this.onTypeDisconnect();
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this.onTypeDisconnect = null;
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}
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for(let name in this.attachedHandlers) {
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for(let callback of this.attachedHandlers[name]) {
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this.audio.removeEventListener(name, callback);
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}
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delete this.attachedHandlers[name];
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}
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this.preloader = null;
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}
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static get observedAttributes(): string[] {
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return [/* массив имён атрибутов для отслеживания их изменений */];
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}
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attributeChangedCallback(name: string, oldValue: string, newValue: string) {
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// вызывается при изменении одного из перечисленных выше атрибутов
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}
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adoptedCallback() {
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// вызывается, когда элемент перемещается в новый документ
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// (происходит в document.adoptNode, используется очень редко)
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}
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// у элемента могут быть ещё другие методы и свойства
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}
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customElements.define("audio-element", AudioElement); |