/* -*- Mode: js2; js2-basic-offset: 2; indent-tabs-mode: nil; -*- */ /* vim: set ft=javascript ts=2 et sw=2 tw=80: */ /* 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/. */ /** * The contents of this file were copied almost entirely from * toolkit/identity/LogUtils.jsm. Until we've got a more generalized logging * mechanism for toolkit, I think this is going to be how we roll. */ "use strict"; this.EXPORTED_SYMBOLS = ["DownloadsLogger"]; const PREF_DEBUG = "browser.download.debug"; const Cu = Components.utils; const Ci = Components.interfaces; const Cc = Components.classes; const Cr = Components.results; Cu.import("resource://gre/modules/XPCOMUtils.jsm"); Cu.import("resource://gre/modules/Services.jsm"); this.DownloadsLogger = { _generateLogMessage: function _generateLogMessage(args) { // create a string representation of a list of arbitrary things let strings = []; for (let arg of args) { if (typeof arg === 'string') { strings.push(arg); } else if (arg === undefined) { strings.push('undefined'); } else if (arg === null) { strings.push('null'); } else { try { strings.push(JSON.stringify(arg, null, 2)); } catch(err) { strings.push("<<something>>"); } } }; return 'Downloads: ' + strings.join(' '); }, /** * log() - utility function to print a list of arbitrary things * * Enable with about:config pref browser.download.debug */ log: function DL_log(...args) { let output = this._generateLogMessage(args); dump(output + "\n"); // Additionally, make the output visible in the Error Console Services.console.logStringMessage(output); }, /** * reportError() - report an error through component utils as well as * our log function */ reportError: function DL_reportError(...aArgs) { // Report the error in the browser let output = this._generateLogMessage(aArgs); Cu.reportError(output); dump("ERROR:" + output + "\n"); for (let frame = Components.stack.caller; frame; frame = frame.caller) { dump("\t" + frame + "\n"); } } };