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/* 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/. */
import { actionTypes as at } from "resource://activity-stream/common/Actions.mjs";
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
BrowserUtils: "resource://gre/modules/BrowserUtils.sys.mjs",
DownloadsCommon: "resource:///modules/DownloadsCommon.sys.mjs",
DownloadsViewUI: "resource:///modules/DownloadsViewUI.sys.mjs",
FileUtils: "resource://gre/modules/FileUtils.sys.mjs",
NewTabUtils: "resource://gre/modules/NewTabUtils.sys.mjs",
});
const DOWNLOAD_CHANGED_DELAY_TIME = 1000; // time in ms to delay timer for downloads changed events
export class DownloadsManager {
constructor() {
this._downloadData = null;
this._store = null;
this._downloadItems = new Map();
this._downloadTimer = null;
}
setTimeout(callback, delay) {
let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
timer.initWithCallback(callback, delay, Ci.nsITimer.TYPE_ONE_SHOT);
return timer;
}
formatDownload(download) {
let referrer = download.source.referrerInfo?.originalReferrer?.spec || null;
return {
hostname: new URL(download.source.url).hostname,
url: download.source.url,
path: download.target.path,
title: lazy.DownloadsViewUI.getDisplayName(download),
description:
lazy.DownloadsViewUI.getSizeWithUnits(download) ||
lazy.DownloadsCommon.strings.sizeUnknown,
referrer,
date_added: download.endTime,
};
}
init(store) {
this._store = store;
this._downloadData = lazy.DownloadsCommon.getData(
null /* null for non-private downloads */,
true,
false,
true
);
this._downloadData.addView(this);
}
onDownloadAdded(download) {
if (!this._downloadItems.has(download.source.url)) {
this._downloadItems.set(download.source.url, download);
// On startup, all existing downloads fire this notification, so debounce them
if (this._downloadTimer) {
this._downloadTimer.delay = DOWNLOAD_CHANGED_DELAY_TIME;
} else {
this._downloadTimer = this.setTimeout(() => {
this._downloadTimer = null;
this._store.dispatch({ type: at.DOWNLOAD_CHANGED });
}, DOWNLOAD_CHANGED_DELAY_TIME);
}
}
}
onDownloadRemoved(download) {
if (this._downloadItems.has(download.source.url)) {
this._downloadItems.delete(download.source.url);
this._store.dispatch({ type: at.DOWNLOAD_CHANGED });
}
}
async getDownloads(
threshold,
{
numItems = this._downloadItems.size,
onlySucceeded = false,
onlyExists = false,
}
) {
if (!threshold) {
return [];
}
let results = [];
// Only get downloads within the time threshold specified and sort by recency
const downloadThreshold = Date.now() - threshold;
let downloads = [...this._downloadItems.values()]
.filter(download => download.endTime > downloadThreshold)
.sort((download1, download2) => download1.endTime < download2.endTime);
for (const download of downloads) {
// Ignore blocked links, but allow long (data:) uris to avoid high CPU
if (
download.source.url.length < 10000 &&
lazy.NewTabUtils.blockedLinks.isBlocked(download.source)
) {
continue;
}
// Only include downloads where the file still exists
if (onlyExists) {
// Refresh download to ensure the 'exists' attribute is up to date
await download.refresh();
if (!download.target.exists) {
continue;
}
}
// Only include downloads that were completed successfully
if (onlySucceeded) {
if (!download.succeeded) {
continue;
}
}
const formattedDownloadForHighlights = this.formatDownload(download);
results.push(formattedDownloadForHighlights);
if (results.length === numItems) {
break;
}
}
return results;
}
uninit() {
if (this._downloadData) {
this._downloadData.removeView(this);
this._downloadData = null;
}
if (this._downloadTimer) {
this._downloadTimer.cancel();
this._downloadTimer = null;
}
}
onAction(action) {
let doDownloadAction = callback => {
let download = this._downloadItems.get(action.data.url);
if (download) {
callback(download);
}
};
switch (action.type) {
case at.COPY_DOWNLOAD_LINK:
doDownloadAction(download => {
lazy.DownloadsCommon.copyDownloadLink(download);
});
break;
case at.REMOVE_DOWNLOAD_FILE:
doDownloadAction(download => {
lazy.DownloadsCommon.deleteDownload(download).catch(console.error);
});
break;
case at.SHOW_DOWNLOAD_FILE:
doDownloadAction(download => {
lazy.DownloadsCommon.showDownloadedFile(
new lazy.FileUtils.File(download.target.path)
);
});
break;
case at.OPEN_DOWNLOAD_FILE: {
const openWhere = lazy.BrowserUtils.whereToOpenLink(action.data.event);
doDownloadAction(download => {
lazy.DownloadsCommon.openDownload(download, {
// Replace "current" or unknown value with "tab" as the default behavior
// for opening downloads when handled internally
openWhere: ["window", "tab", "tabshifted"].includes(openWhere)
? openWhere
: "tab",
});
});
break;
}
case at.UNINIT:
this.uninit();
break;
}
}
}
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