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/* -*- 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");
}
}
};
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