diff options
Diffstat (limited to 'plugins/org.apache.cordova.console/www')
| -rw-r--r-- | plugins/org.apache.cordova.console/www/console-via-logger.js | 187 | ||||
| -rw-r--r-- | plugins/org.apache.cordova.console/www/logger.js | 355 |
2 files changed, 542 insertions, 0 deletions
diff --git a/plugins/org.apache.cordova.console/www/console-via-logger.js b/plugins/org.apache.cordova.console/www/console-via-logger.js new file mode 100644 index 00000000..4095eb3e --- /dev/null +++ b/plugins/org.apache.cordova.console/www/console-via-logger.js @@ -0,0 +1,187 @@ +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * +*/ + +//------------------------------------------------------------------------------ + +var logger = require("./logger"); +var utils = require("cordova/utils"); + +//------------------------------------------------------------------------------ +// object that we're exporting +//------------------------------------------------------------------------------ +var console = module.exports; + +//------------------------------------------------------------------------------ +// copy of the original console object +//------------------------------------------------------------------------------ +var WinConsole = window.console; + +//------------------------------------------------------------------------------ +// whether to use the logger +//------------------------------------------------------------------------------ +var UseLogger = false; + +//------------------------------------------------------------------------------ +// Timers +//------------------------------------------------------------------------------ +var Timers = {}; + +//------------------------------------------------------------------------------ +// used for unimplemented methods +//------------------------------------------------------------------------------ +function noop() {} + +//------------------------------------------------------------------------------ +// used for unimplemented methods +//------------------------------------------------------------------------------ +console.useLogger = function (value) { + if (arguments.length) UseLogger = !!value; + + if (UseLogger) { + if (logger.useConsole()) { + throw new Error("console and logger are too intertwingly"); + } + } + + return UseLogger; +}; + +//------------------------------------------------------------------------------ +console.log = function() { + if (logger.useConsole()) return; + logger.log.apply(logger, [].slice.call(arguments)); +}; + +//------------------------------------------------------------------------------ +console.error = function() { + if (logger.useConsole()) return; + logger.error.apply(logger, [].slice.call(arguments)); +}; + +//------------------------------------------------------------------------------ +console.warn = function() { + if (logger.useConsole()) return; + logger.warn.apply(logger, [].slice.call(arguments)); +}; + +//------------------------------------------------------------------------------ +console.info = function() { + if (logger.useConsole()) return; + logger.info.apply(logger, [].slice.call(arguments)); +}; + +//------------------------------------------------------------------------------ +console.debug = function() { + if (logger.useConsole()) return; + logger.debug.apply(logger, [].slice.call(arguments)); +}; + +//------------------------------------------------------------------------------ +console.assert = function(expression) { + if (expression) return; + + var message = logger.format.apply(logger.format, [].slice.call(arguments, 1)); + console.log("ASSERT: " + message); +}; + +//------------------------------------------------------------------------------ +console.clear = function() {}; + +//------------------------------------------------------------------------------ +console.dir = function(object) { + console.log("%o", object); +}; + +//------------------------------------------------------------------------------ +console.dirxml = function(node) { + console.log(node.innerHTML); +}; + +//------------------------------------------------------------------------------ +console.trace = noop; + +//------------------------------------------------------------------------------ +console.group = console.log; + +//------------------------------------------------------------------------------ +console.groupCollapsed = console.log; + +//------------------------------------------------------------------------------ +console.groupEnd = noop; + +//------------------------------------------------------------------------------ +console.time = function(name) { + Timers[name] = new Date().valueOf(); +}; + +//------------------------------------------------------------------------------ +console.timeEnd = function(name) { + var timeStart = Timers[name]; + if (!timeStart) { + console.warn("unknown timer: " + name); + return; + } + + var timeElapsed = new Date().valueOf() - timeStart; + console.log(name + ": " + timeElapsed + "ms"); +}; + +//------------------------------------------------------------------------------ +console.timeStamp = noop; + +//------------------------------------------------------------------------------ +console.profile = noop; + +//------------------------------------------------------------------------------ +console.profileEnd = noop; + +//------------------------------------------------------------------------------ +console.count = noop; + +//------------------------------------------------------------------------------ +console.exception = console.log; + +//------------------------------------------------------------------------------ +console.table = function(data, columns) { + console.log("%o", data); +}; + +//------------------------------------------------------------------------------ +// return a new function that calls both functions passed as args +//------------------------------------------------------------------------------ +function wrappedOrigCall(orgFunc, newFunc) { + return function() { + var args = [].slice.call(arguments); + try { orgFunc.apply(WinConsole, args); } catch (e) {} + try { newFunc.apply(console, args); } catch (e) {} + }; +} + +//------------------------------------------------------------------------------ +// For every function that exists in the original console object, that +// also exists in the new console object, wrap the new console method +// with one that calls both +//------------------------------------------------------------------------------ +for (var key in console) { + if (typeof WinConsole[key] == "function") { + console[key] = wrappedOrigCall(WinConsole[key], console[key]); + } +} diff --git a/plugins/org.apache.cordova.console/www/logger.js b/plugins/org.apache.cordova.console/www/logger.js new file mode 100644 index 00000000..cbf81b9c --- /dev/null +++ b/plugins/org.apache.cordova.console/www/logger.js @@ -0,0 +1,355 @@ +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * +*/ + +//------------------------------------------------------------------------------ +// The logger module exports the following properties/functions: +// +// LOG - constant for the level LOG +// ERROR - constant for the level ERROR +// WARN - constant for the level WARN +// INFO - constant for the level INFO +// DEBUG - constant for the level DEBUG +// logLevel() - returns current log level +// logLevel(value) - sets and returns a new log level +// useConsole() - returns whether logger is using console +// useConsole(value) - sets and returns whether logger is using console +// log(message,...) - logs a message at level LOG +// error(message,...) - logs a message at level ERROR +// warn(message,...) - logs a message at level WARN +// info(message,...) - logs a message at level INFO +// debug(message,...) - logs a message at level DEBUG +// logLevel(level,message,...) - logs a message specified level +// +//------------------------------------------------------------------------------ + +var logger = exports; + +var exec = require('cordova/exec'); +var utils = require('cordova/utils'); + +var UseConsole = false; +var UseLogger = true; +var Queued = []; +var DeviceReady = false; +var CurrentLevel; + +var originalConsole = console; + +/** + * Logging levels + */ + +var Levels = [ + "LOG", + "ERROR", + "WARN", + "INFO", + "DEBUG" +]; + +/* + * add the logging levels to the logger object and + * to a separate levelsMap object for testing + */ + +var LevelsMap = {}; +for (var i=0; i<Levels.length; i++) { + var level = Levels[i]; + LevelsMap[level] = i; + logger[level] = level; +} + +CurrentLevel = LevelsMap.WARN; + +/** + * Getter/Setter for the logging level + * + * Returns the current logging level. + * + * When a value is passed, sets the logging level to that value. + * The values should be one of the following constants: + * logger.LOG + * logger.ERROR + * logger.WARN + * logger.INFO + * logger.DEBUG + * + * The value used determines which messages get printed. The logging + * values above are in order, and only messages logged at the logging + * level or above will actually be displayed to the user. E.g., the + * default level is WARN, so only messages logged with LOG, ERROR, or + * WARN will be displayed; INFO and DEBUG messages will be ignored. + */ +logger.level = function (value) { + if (arguments.length) { + if (LevelsMap[value] === null) { + throw new Error("invalid logging level: " + value); + } + CurrentLevel = LevelsMap[value]; + } + + return Levels[CurrentLevel]; +}; + +/** + * Getter/Setter for the useConsole functionality + * + * When useConsole is true, the logger will log via the + * browser 'console' object. + */ +logger.useConsole = function (value) { + if (arguments.length) UseConsole = !!value; + + if (UseConsole) { + if (typeof console == "undefined") { + throw new Error("global console object is not defined"); + } + + if (typeof console.log != "function") { + throw new Error("global console object does not have a log function"); + } + + if (typeof console.useLogger == "function") { + if (console.useLogger()) { + throw new Error("console and logger are too intertwingly"); + } + } + } + + return UseConsole; +}; + +/** + * Getter/Setter for the useLogger functionality + * + * When useLogger is true, the logger will log via the + * native Logger plugin. + */ +logger.useLogger = function (value) { + // Enforce boolean + if (arguments.length) UseLogger = !!value; + return UseLogger; +}; + +/** + * Logs a message at the LOG level. + * + * Parameters passed after message are used applied to + * the message with utils.format() + */ +logger.log = function(message) { logWithArgs("LOG", arguments); }; + +/** + * Logs a message at the ERROR level. + * + * Parameters passed after message are used applied to + * the message with utils.format() + */ +logger.error = function(message) { logWithArgs("ERROR", arguments); }; + +/** + * Logs a message at the WARN level. + * + * Parameters passed after message are used applied to + * the message with utils.format() + */ +logger.warn = function(message) { logWithArgs("WARN", arguments); }; + +/** + * Logs a message at the INFO level. + * + * Parameters passed after message are used applied to + * the message with utils.format() + */ +logger.info = function(message) { logWithArgs("INFO", arguments); }; + +/** + * Logs a message at the DEBUG level. + * + * Parameters passed after message are used applied to + * the message with utils.format() + */ +logger.debug = function(message) { logWithArgs("DEBUG", arguments); }; + +// log at the specified level with args +function logWithArgs(level, args) { + args = [level].concat([].slice.call(args)); + logger.logLevel.apply(logger, args); +} + +// return the correct formatString for an object +function formatStringForMessage(message) { + return (typeof message === "string") ? "" : "%o"; +} + +/** + * Logs a message at the specified level. + * + * Parameters passed after message are used applied to + * the message with utils.format() + */ +logger.logLevel = function(level /* , ... */) { + // format the message with the parameters + var formatArgs = [].slice.call(arguments, 1); + var fmtString = formatStringForMessage(formatArgs[0]); + if (fmtString.length > 0){ + formatArgs.unshift(fmtString); // add formatString + } + + var message = logger.format.apply(logger.format, formatArgs); + + if (LevelsMap[level] === null) { + throw new Error("invalid logging level: " + level); + } + + if (LevelsMap[level] > CurrentLevel) return; + + // queue the message if not yet at deviceready + if (!DeviceReady && !UseConsole) { + Queued.push([level, message]); + return; + } + + // Log using the native logger if that is enabled + if (UseLogger) { + exec(null, null, "Console", "logLevel", [level, message]); + } + + // Log using the console if that is enabled + if (UseConsole) { + // make sure console is not using logger + if (console.useLogger()) { + throw new Error("console and logger are too intertwingly"); + } + + // log to the console + switch (level) { + case logger.LOG: originalConsole.log(message); break; + case logger.ERROR: originalConsole.log("ERROR: " + message); break; + case logger.WARN: originalConsole.log("WARN: " + message); break; + case logger.INFO: originalConsole.log("INFO: " + message); break; + case logger.DEBUG: originalConsole.log("DEBUG: " + message); break; + } + } +}; + + +/** + * Formats a string and arguments following it ala console.log() + * + * Any remaining arguments will be appended to the formatted string. + * + * for rationale, see FireBug's Console API: + * http://getfirebug.com/wiki/index.php/Console_API + */ +logger.format = function(formatString, args) { + return __format(arguments[0], [].slice.call(arguments,1)).join(' '); +}; + + +//------------------------------------------------------------------------------ +/** + * Formats a string and arguments following it ala vsprintf() + * + * format chars: + * %j - format arg as JSON + * %o - format arg as JSON + * %c - format arg as '' + * %% - replace with '%' + * any other char following % will format it's + * arg via toString(). + * + * Returns an array containing the formatted string and any remaining + * arguments. + */ +function __format(formatString, args) { + if (formatString === null || formatString === undefined) return [""]; + if (arguments.length == 1) return [formatString.toString()]; + + if (typeof formatString != "string") + formatString = formatString.toString(); + + var pattern = /(.*?)%(.)(.*)/; + var rest = formatString; + var result = []; + + while (args.length) { + var match = pattern.exec(rest); + if (!match) break; + + var arg = args.shift(); + rest = match[3]; + result.push(match[1]); + + if (match[2] == '%') { + result.push('%'); + args.unshift(arg); + continue; + } + + result.push(__formatted(arg, match[2])); + } + + result.push(rest); + + var remainingArgs = [].slice.call(args); + remainingArgs.unshift(result.join('')); + return remainingArgs; +} + +function __formatted(object, formatChar) { + + try { + switch(formatChar) { + case 'j': + case 'o': return JSON.stringify(object); + case 'c': return ''; + } + } + catch (e) { + return "error JSON.stringify()ing argument: " + e; + } + + if ((object === null) || (object === undefined)) { + return Object.prototype.toString.call(object); + } + + return object.toString(); +} + + +//------------------------------------------------------------------------------ +// when deviceready fires, log queued messages +logger.__onDeviceReady = function() { + if (DeviceReady) return; + + DeviceReady = true; + + for (var i=0; i<Queued.length; i++) { + var messageArgs = Queued[i]; + logger.logLevel(messageArgs[0], messageArgs[1]); + } + + Queued = null; +}; + +// add a deviceready event to log queued messages +document.addEventListener("deviceready", logger.__onDeviceReady, false); |
