factored out progress into progress.js
This commit is contained in:
Danny Coates
parent
5ac013ca40
commit
c91d24cd86
12 changed files with 229 additions and 240 deletions
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@ -1,144 +1,118 @@
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const { Raven } = require('./common');
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const FileReceiver = require('./fileReceiver');
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const { notify, gcmCompliant } = require('./utils');
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const bytes = require('bytes');
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const { bytes, notify, gcmCompliant } = require('./utils');
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const Storage = require('./storage');
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const storage = new Storage(localStorage);
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const links = require('./links');
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const metrics = require('./metrics');
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const progress = require('./progress');
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const $ = require('jquery');
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require('jquery-circle-progress');
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function onUnload(size) {
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metrics.cancelledDownload({ size });
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}
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function download() {
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const $downloadBtn = $('#download-btn');
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const $title = $('.title');
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const $file = $('#dl-file');
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const size = Number($file.attr('data-size'));
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const ttl = Number($file.attr('data-ttl'));
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const unloadHandler = onUnload.bind(null, size);
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const startTime = Date.now();
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const fileReceiver = new FileReceiver();
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$downloadBtn.attr('disabled', 'disabled');
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$('#download-page-one').attr('hidden', true);
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$('#download-progress').removeAttr('hidden');
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metrics.startedDownload({ size, ttl });
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links.setOpenInNewTab(true);
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window.addEventListener('unload', unloadHandler);
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fileReceiver.on('progress', data => {
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progress.setProgress({ complete: data[0], total: data[1] });
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});
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let downloadEnd;
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fileReceiver.on('decrypting', () => {
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downloadEnd = Date.now();
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window.removeEventListener('unload', unloadHandler);
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fileReceiver.removeAllListeners('progress');
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document.l10n.formatValue('decryptingFile').then(progress.setText);
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});
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fileReceiver.on('hashing', () => {
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document.l10n.formatValue('verifyingFile').then(progress.setText);
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});
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fileReceiver
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.download()
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.catch(err => {
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metrics.stoppedDownload({ size, err });
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if (err.message === 'notfound') {
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location.reload();
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} else {
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document.l10n.formatValue('errorPageHeader').then(translated => {
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$title.text(translated);
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});
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$downloadBtn.attr('hidden', true);
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$('#expired-img').removeAttr('hidden');
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}
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throw err;
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})
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.then(([decrypted, fname]) => {
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const endTime = Date.now();
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const time = endTime - startTime;
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const downloadTime = endTime - downloadEnd;
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const speed = size / (downloadTime / 1000);
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storage.totalDownloads += 1;
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metrics.completedDownload({ size, time, speed });
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progress.setText(' ');
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document.l10n
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.formatValues('downloadNotification', 'downloadFinish')
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.then(translated => {
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notify(translated[0]);
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$title.text(translated[1]);
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});
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const dataView = new DataView(decrypted);
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const blob = new Blob([dataView]);
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const downloadUrl = URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = downloadUrl;
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if (window.navigator.msSaveBlob) {
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// if we are in microsoft edge or IE
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window.navigator.msSaveBlob(blob, fname);
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return;
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}
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a.download = fname;
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document.body.appendChild(a);
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a.click();
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})
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.catch(err => {
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Raven.captureException(err);
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return Promise.reject(err);
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})
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.then(() => links.setOpenInNewTab(false));
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}
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$(() => {
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const $file = $('#dl-file');
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const filename = $file.attr('data-filename');
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const b = Number($file.attr('data-size'));
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const size = bytes(b);
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document.l10n
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.formatValue('downloadFileSize', { size })
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.then(str => $('#dl-filesize').text(str));
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document.l10n
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.formatValue('downloadingPageProgress', { filename, size })
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.then(str => $('#dl-title').text(str));
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gcmCompliant()
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.then(() => {
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const $downloadBtn = $('#download-btn');
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const $dlProgress = $('#dl-progress');
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const $progressText = $('.progress-text');
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const $title = $('.title');
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const filename = $('#dl-filename').text();
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const size = Number($('#dl-size').text());
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const ttl = Number($('#dl-ttl').text());
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//initiate progress bar
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$dlProgress.circleProgress({
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value: 0.0,
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startAngle: -Math.PI / 2,
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fill: '#3B9DFF',
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size: 158,
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animation: { duration: 300 }
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});
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const download = () => {
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// Disable the download button to avoid accidental double clicks.
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$downloadBtn.attr('disabled', 'disabled');
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links.setOpenInNewTab(true);
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const fileReceiver = new FileReceiver();
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fileReceiver.on('progress', progress => {
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window.onunload = function() {
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metrics.cancelledDownload({ size });
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};
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$('#download-page-one').attr('hidden', true);
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$('#download-progress').removeAttr('hidden');
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const percent = progress[0] / progress[1];
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// update progress bar
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$dlProgress.circleProgress('value', percent);
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$('.percent-number').text(`${Math.floor(percent * 100)}`);
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$progressText.text(
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`${filename} (${bytes(progress[0], {
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decimalPlaces: 1,
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fixedDecimals: true
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})} of ${bytes(progress[1], { decimalPlaces: 1 })})`
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);
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});
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let downloadEnd;
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fileReceiver.on('decrypting', isStillDecrypting => {
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// The file is being decrypted
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if (isStillDecrypting) {
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fileReceiver.removeAllListeners('progress');
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window.onunload = null;
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document.l10n.formatValue('decryptingFile').then(decryptingFile => {
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$progressText.text(decryptingFile);
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});
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} else {
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downloadEnd = Date.now();
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}
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});
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fileReceiver.on('hashing', isStillHashing => {
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// The file is being hashed to make sure a malicious user hasn't tampered with it
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if (isStillHashing) {
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document.l10n.formatValue('verifyingFile').then(verifyingFile => {
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$progressText.text(verifyingFile);
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});
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} else {
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$progressText.text(' ');
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document.l10n
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.formatValues('downloadNotification', 'downloadFinish')
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.then(translated => {
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notify(translated[0]);
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$title.text(translated[1]);
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});
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}
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});
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const startTime = Date.now();
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metrics.startedDownload({ size, ttl });
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fileReceiver
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.download()
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.catch(err => {
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metrics.stoppedDownload({ size, err });
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if (err.message === 'notfound') {
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location.reload();
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} else {
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document.l10n.formatValue('errorPageHeader').then(translated => {
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$title.text(translated);
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});
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$downloadBtn.attr('hidden', true);
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$('#expired-img').removeAttr('hidden');
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}
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throw err;
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})
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.then(([decrypted, fname]) => {
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const endTime = Date.now();
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const time = endTime - startTime;
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const downloadTime = endTime - downloadEnd;
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const speed = size / (downloadTime / 1000);
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storage.totalDownloads += 1;
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metrics.completedDownload({ size, time, speed });
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const dataView = new DataView(decrypted);
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const blob = new Blob([dataView]);
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const downloadUrl = URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = downloadUrl;
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if (window.navigator.msSaveBlob) {
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// if we are in microsoft edge or IE
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window.navigator.msSaveBlob(blob, fname);
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return;
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}
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a.download = fname;
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document.body.appendChild(a);
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a.click();
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})
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.catch(err => {
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Raven.captureException(err);
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return Promise.reject(err);
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})
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.then(() => links.setOpenInNewTab(false));
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};
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$downloadBtn.on('click', download);
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$('#download-btn').on('click', download);
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})
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.catch(err => {
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metrics.unsupported({ err }).then(() => {
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