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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80 filetype=javascript: */
/* 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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* Handles the download progress indicator of the macOS Finder.
*/
"use strict";
var EXPORTED_SYMBOLS = ["DownloadsMacFinderProgress"];
const { XPCOMUtils } = ChromeUtils.import(
"resource://gre/modules/XPCOMUtils.jsm"
);
XPCOMUtils.defineLazyModuleGetters(this, {
Downloads: "resource://gre/modules/Downloads.jsm",
});
var DownloadsMacFinderProgress = {
/**
* Maps the path of the download, to the according progress indicator instance.
*/
_finderProgresses: null,
/**
* This method is called after a new browser window on macOS is opened, it
* registers for receiving download events for the progressbar of the Finder.
*/
register() {
// Ensure to register only once per process and not for every window.
if (!this._finderProgresses) {
this._finderProgresses = new Map();
Downloads.getList(Downloads.ALL).then(list => list.addView(this));
}
},
onDownloadAdded(download) {
if (download.stopped) {
return;
}
let finderProgress = Cc[
"@mozilla.org/widget/macfinderprogress;1"
].createInstance(Ci.nsIMacFinderProgress);
let path = download.target.path;
finderProgress.init(path, () => {
download.cancel().catch(Cu.reportError);
download.removePartialData().catch(Cu.reportError);
});
if (download.hasProgress) {
finderProgress.updateProgress(download.currentBytes, download.totalBytes);
} else {
finderProgress.updateProgress(0, 0);
}
this._finderProgresses.set(path, finderProgress);
},
onDownloadChanged(download) {
let path = download.target.path;
let finderProgress = this._finderProgresses.get(path);
if (!finderProgress) {
// The download is not tracked, it may have been restarted,
// thus forward the call to onDownloadAdded to check if it should be tracked.
this.onDownloadAdded(download);
} else if (download.stopped) {
finderProgress.end();
this._finderProgresses.delete(path);
} else {
finderProgress.updateProgress(download.currentBytes, download.totalBytes);
}
},
onDownloadRemoved(download) {
let path = download.target.path;
let finderProgress = this._finderProgresses.get(path);
if (finderProgress) {
finderProgress.end();
this._finderProgresses.delete(path);
}
},
};
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