b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
124 lines
3.7 KiB
JavaScript
124 lines
3.7 KiB
JavaScript
/* global LazyLoader, DownloadFormatter, DownloadNotification, DownloadIcon,
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Service */
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'use strict';
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/*
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* The DownloadManager listens for new downloads when they start. This
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* component will create notifications in the utility tray and will store them
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* Also it will create an icon in statusbar
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*
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* WARNING: This library will load these resources:
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*
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* - style/notifications/downloads.css
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* - shared/js/download/download_formatter.js
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* - js/download/download_notification.js
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*/
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/* exported DownloadManager */
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var DownloadManager = (function() {
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var mozDownloadManager = navigator.mozDownloadManager;
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if (!mozDownloadManager) {
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console.error('navigator.mozDownloadManager not supported!');
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return;
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}
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// XXX bug 1097435 -- This is the only safe place we can call this for now.
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mozDownloadManager.clearAllDone();
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// This object stores download notification objects by id
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var notifications = {};
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var started = false;
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var icon = null;
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// Define and set our download start handler.
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function onDownloadStart(ev) {
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if (started) {
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createDownloadNotificationAndIcon(ev.download);
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} else {
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LazyLoader.load(['shared/js/download/download_formatter.js',
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'shared/js/download/download_ui.js',
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'shared/js/download/download_store.js',
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'shared/js/download/download_helper.js',
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'js/download/download_notification.js']).then(
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function() {
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started = true;
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createDownloadNotificationAndIcon(ev.download);
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window.addEventListener('notification-clicked', handleEvent);
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// Bug 1102810 - After this bug gets fixed, this listener won't be
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// needed anymore. The API itself should handle startTime when killing
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// the process.
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window.addEventListener('will-shutdown', function onShutdown() {
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ev.download.pause();
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});
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})['catch'](function(err) { // XXX: workaround gjslint
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console.error(err);
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});
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}
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}
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mozDownloadManager.addEventListener('downloadstart', onDownloadStart);
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function createDownloadNotificationAndIcon(download) {
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var id = DownloadFormatter.getUUID(download);
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notifications[id] = new DownloadNotification(download);
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loadDownloadIconIfNecessary().then(function() {
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icon.handle(download);
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});
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}
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var downloadManager = {
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name: 'DownloadManager',
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incDownloads: function() {
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loadDownloadIconIfNecessary().then(function() {
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icon.incDownloads();
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})['catch'](function(err) { // XXX: workaround gjslint
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console.error(err);
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});
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},
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decDownloads: function() {
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loadDownloadIconIfNecessary().then(function() {
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icon.decDownloads();
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})['catch'](function(err) { // XXX: workaround gjslint
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console.error(err);
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});
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}
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};
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function loadDownloadIconIfNecessary() {
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return new Promise(function(resolve, reject) {
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if (!icon) {
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LazyLoader.load(['js/download_icon.js']).then(function() {
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icon = new DownloadIcon(this);
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icon.start();
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resolve();
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}.bind(this))['catch'](function(err) { // XXX: workaround gjslint
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console.error(err);
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reject();
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});
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} else {
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resolve();
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}
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});
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}
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Service.register('incDownloads', downloadManager);
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Service.register('decDownloads', downloadManager);
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function handleEvent(evt) {
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var detail = evt.detail;
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if (!detail || !detail.id) {
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return;
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}
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var id = detail.id;
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var notification = notifications[id];
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if (notification) {
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notification.onClick(function onRemovedNotification() {
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notifications[id] = null;
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});
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}
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}
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}());
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