Author: evan
Date: Sat Apr 4 00:16:39 2009
New Revision: 761845
URL: http://svn.apache.org/viewvc?rev=761845&view=rev
Log:
Support for gadgets.log
Added:
incubator/shindig/trunk/features/src/main/javascript/features/core/log.js
Modified:
incubator/shindig/trunk/features/src/main/javascript/features/core/feature.xml
Modified:
incubator/shindig/trunk/features/src/main/javascript/features/core/feature.xml
URL:
http://svn.apache.org/viewvc/incubator/shindig/trunk/features/src/main/javascript/features/core/feature.xml?rev=761845&r1=761844&r2=761845&view=diff
==============================================================================
---
incubator/shindig/trunk/features/src/main/javascript/features/core/feature.xml
(original)
+++
incubator/shindig/trunk/features/src/main/javascript/features/core/feature.xml
Sat Apr 4 00:16:39 2009
@@ -29,6 +29,7 @@
<script src="prefs.js"/>
<script src="json.js"/>
<script src="legacy.js"/>
+ <script src="log.js"/>
</gadget>
<container>
<script src="util.js"/>
Added: incubator/shindig/trunk/features/src/main/javascript/features/core/log.js
URL:
http://svn.apache.org/viewvc/incubator/shindig/trunk/features/src/main/javascript/features/core/log.js?rev=761845&view=auto
==============================================================================
--- incubator/shindig/trunk/features/src/main/javascript/features/core/log.js
(added)
+++ incubator/shindig/trunk/features/src/main/javascript/features/core/log.js
Sat Apr 4 00:16:39 2009
@@ -0,0 +1,118 @@
+/*
+ * 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.
+ */
+
+/**
+ * @fileoverview
+ * Support for basic logging capability for gadgets, meant to replace
+ * alert(msg) and window.console.log(msg).
+ *
+ * Currently only works on browsers with a console (WebKit based browsers
+ * or Firefox with Firebug extension).
+ *
+ * API is designed to be equivalent to existing console.log | warn | error
+ * logging APIs supported by Firebug and WebKit based browsers. The only
+ * addition is the ability to call gadgets.setLogLevel().
+ */
+
+var gadgets = gadgets || {};
+
+/**
+ * Log an informational message
+ */
+gadgets.log = function(message) {
+ gadgets.log.logAtLevel(gadgets.log.INFO, message);
+};
+
+/**
+ * Log a warning
+ */
+gadgets.warn = function(message) {
+ gadgets.log.logAtLevel(gadgets.log.WARNING, message);
+}
+
+/**
+ * Log an error
+ */
+gadgets.error = function(message) {
+ gadgets.log.logAtLevel(gadgets.log.ERROR, message);
+};
+
+/**
+ * Sets the log level threshold.
+ * @param {Number} logLevel - New log level threshold.
+ * @static
+ */
+gadgets.setLogLevel = function(logLevel) {
+ gadgets.log.logLevelThreshold_ = logLevel;
+};
+
+/**
+ * Logs a log message if output console is available, and log threshold is met.
+ * @param {Number} level - the level to log with. Optional, defaults to
+ * @param {Object} message - The message to log
+ * gadgets.log.INFO.
+ * @static
+ */
+gadgets.log.logAtLevel = function(level, message) {
+ if (level < gadgets.log.logLevelThreshold_ || !window.console) {
+ return;
+ }
+
+ var logger = window.console.log;
+
+ if (level == gadgets.log.WARNING && window.console.warn) {
+ logger = window.console.warn;
+ } else if (level == gadgets.log.ERROR && window.console.error) {
+ logger = window.console.error;
+ }
+
+ logger(message);
+};
+
+/**
+ * Log level for informational logging.
+ * @static
+ */
+gadgets.log.INFO = 1;
+
+/**
+ * Log level for warning logging.
+ * @static
+ */
+gadgets.log.WARNING = 2;
+
+/**
+ * Log level for error logging.
+ * @static
+ */
+gadgets.log.ERROR = 3;
+
+/**
+ * Log level for no logging
+ * @static
+ */
+gadgets.log.NONE = 4;
+
+/**
+ * Current log level threshold.
+ * @type Number
+ * @private
+ * @static
+ */
+gadgets.log.logLevelThreshold_ = gadgets.log.INFO;
