michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: module.metadata = {
michael@0:   "stability": "unstable"
michael@0: };
michael@0: 
michael@0: const { Cc, Ci, Cu, Cr } = require("chrome");
michael@0: const self = require("../self");
michael@0: const prefs = require("../preferences/service");
michael@0: const { merge } = require("../util/object");
michael@0: const { ConsoleAPI } = Cu.import("resource://gre/modules/devtools/Console.jsm", {});
michael@0: 
michael@0: const DEFAULT_LOG_LEVEL = "error";
michael@0: const ADDON_LOG_LEVEL_PREF = "extensions." + self.id + ".sdk.console.logLevel";
michael@0: const SDK_LOG_LEVEL_PREF = "extensions.sdk.console.logLevel";
michael@0: 
michael@0: let logLevel = DEFAULT_LOG_LEVEL;
michael@0: function setLogLevel() {
michael@0:   logLevel = prefs.get(ADDON_LOG_LEVEL_PREF,
michael@0:                            prefs.get(SDK_LOG_LEVEL_PREF,
michael@0:                                      DEFAULT_LOG_LEVEL));
michael@0: }
michael@0: setLogLevel();
michael@0: 
michael@0: let logLevelObserver = {
michael@0:   QueryInterface: function(iid) {
michael@0:     if (!iid.equals(Ci.nsIObserver) &&
michael@0:         !iid.equals(Ci.nsISupportsWeakReference) &&
michael@0:         !iid.equals(Ci.nsISupports))
michael@0:       throw Cr.NS_ERROR_NO_INTERFACE;
michael@0:     return this;
michael@0:   },
michael@0:   observe: function(subject, topic, data) {
michael@0:     setLogLevel();
michael@0:   }
michael@0: };
michael@0: let branch = Cc["@mozilla.org/preferences-service;1"].
michael@0:              getService(Ci.nsIPrefService).
michael@0:              getBranch(null);
michael@0: branch.addObserver(ADDON_LOG_LEVEL_PREF, logLevelObserver, true);
michael@0: branch.addObserver(SDK_LOG_LEVEL_PREF, logLevelObserver, true);
michael@0: 
michael@0: function PlainTextConsole(print, innerID) {
michael@0: 
michael@0:   let consoleOptions = {
michael@0:     prefix: self.name + ": ",
michael@0:     maxLogLevel: logLevel,
michael@0:     dump: print,
michael@0:     innerID: innerID
michael@0:   };
michael@0:   let console = new ConsoleAPI(consoleOptions);
michael@0: 
michael@0:   // As we freeze the console object, we can't modify this property afterward
michael@0:   Object.defineProperty(console, "maxLogLevel", {
michael@0:     get: function() {
michael@0:       return logLevel;
michael@0:     }
michael@0:   });
michael@0: 
michael@0:   // We defined the `__exposedProps__` in our console chrome object.
michael@0:   //
michael@0:   // Meanwhile we're investigating with the platform team if `__exposedProps__`
michael@0:   // are needed, or are just a left-over.
michael@0: 
michael@0:   console.__exposedProps__ = Object.keys(ConsoleAPI.prototype).reduce(function(exposed, prop) {
michael@0:     exposed[prop] = "r";
michael@0:     return exposed;
michael@0:   }, {});
michael@0: 
michael@0:   Object.freeze(console);
michael@0:   return console;
michael@0: };
michael@0: exports.PlainTextConsole = PlainTextConsole;