diff options
Diffstat (limited to 'browser/components/newtab/lib/DownloadsManager.sys.mjs')
| -rw-r--r-- | browser/components/newtab/lib/DownloadsManager.sys.mjs | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/browser/components/newtab/lib/DownloadsManager.sys.mjs b/browser/components/newtab/lib/DownloadsManager.sys.mjs new file mode 100644 index 0000000000..f095645d41 --- /dev/null +++ b/browser/components/newtab/lib/DownloadsManager.sys.mjs @@ -0,0 +1,188 @@ +/* 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.sys.mjs"; + +const lazy = {}; + +ChromeUtils.defineESModuleGetters(lazy, { + 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(store) { + 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 win = action._target.browser.ownerGlobal; + const openWhere = + action.data.event && win.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; + } + } +} |