forked from mirrors/gecko-dev
79 lines
2.5 KiB
JavaScript
79 lines
2.5 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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module.metadata = {
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"stability": "unstable"
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};
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const { Cc, Ci, Cu, Cr } = require("chrome");
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const self = require("../self");
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const prefs = require("../preferences/service");
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const { merge } = require("../util/object");
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const { ConsoleAPI } = Cu.import("resource://gre/modules/devtools/Console.jsm");
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const DEFAULT_LOG_LEVEL = "error";
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const ADDON_LOG_LEVEL_PREF = "extensions." + self.id + ".sdk.console.logLevel";
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const SDK_LOG_LEVEL_PREF = "extensions.sdk.console.logLevel";
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let logLevel = DEFAULT_LOG_LEVEL;
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function setLogLevel() {
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logLevel = prefs.get(ADDON_LOG_LEVEL_PREF,
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prefs.get(SDK_LOG_LEVEL_PREF,
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DEFAULT_LOG_LEVEL));
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}
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setLogLevel();
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let logLevelObserver = {
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QueryInterface: function(iid) {
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if (!iid.equals(Ci.nsIObserver) &&
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!iid.equals(Ci.nsISupportsWeakReference) &&
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!iid.equals(Ci.nsISupports))
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throw Cr.NS_ERROR_NO_INTERFACE;
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return this;
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},
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observe: function(subject, topic, data) {
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setLogLevel();
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}
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};
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let branch = Cc["@mozilla.org/preferences-service;1"].
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getService(Ci.nsIPrefService).
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getBranch(null);
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branch.addObserver(ADDON_LOG_LEVEL_PREF, logLevelObserver, true);
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branch.addObserver(SDK_LOG_LEVEL_PREF, logLevelObserver, true);
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function PlainTextConsole(print) {
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let consoleOptions = {
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prefix: self.name + ": ",
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maxLogLevel: logLevel,
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dump: print
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};
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let console = new ConsoleAPI(consoleOptions);
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// As we freeze the console object, we can't modify this property afterward
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Object.defineProperty(console, "maxLogLevel", {
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get: function() {
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return logLevel;
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}
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});
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// We defined the `__exposedProps__` in our console chrome object.
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// Although it seems redundant, because we use `createObjectIn` too, in
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// worker.js, we are following what `ConsoleAPI` does. See:
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// http://mxr.mozilla.org/mozilla-central/source/dom/base/ConsoleAPI.js#132
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//
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// Meanwhile we're investigating with the platform team if `__exposedProps__`
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// are needed, or are just a left-over.
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console.__exposedProps__ = Object.keys(ConsoleAPI.prototype).reduce(function(exposed, prop) {
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exposed[prop] = "r";
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return exposed;
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}, {});
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Object.freeze(console);
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return console;
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};
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exports.PlainTextConsole = PlainTextConsole;
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