mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-17 16:26:39 +03:00
Joey Parrish
3e7014db2b
This will allow support-testing to work on older browsers so that application developers can still load the library and query for support to show an appropriate error message. To accomplish this, we avoid load-time uses of Function.bind, avoid certain polyfills if modern types are not available, and compile down to ES3 to avoid errors caused by use of the reserved word "catch" on Promises. This has been tested back to IE6, Safari 5.1, iOS 6.0, Firefox 6, Chrome 15, and Opera 16. Change-Id: I9deed106a7736758e04452ef85bae40f37c6fe62
114 lines
2.9 KiB
JavaScript
114 lines
2.9 KiB
JavaScript
/**
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* @license
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* Copyright 2015 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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goog.provide('shaka.log');
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/**
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* @namespace shaka.log
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* @summary A console logging framework which is compiled out for deployment.
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*/
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/**
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* Log levels.
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* @enum {number}
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*/
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shaka.log.Level = {
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NONE: 0,
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ERROR: 1,
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WARNING: 2,
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INFO: 3,
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DEBUG: 4,
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V1: 5,
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V2: 6
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};
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/**
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* @define {number} the maximum log level.
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*/
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goog.define('shaka.log.MAX_LOG_LEVEL', 3);
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/** @type {function(*, ...*)} */
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shaka.log.error = function() {};
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/** @type {function(*, ...*)} */
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shaka.log.warning = function() {};
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/** @type {function(*, ...*)} */
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shaka.log.info = function() {};
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/** @type {function(*, ...*)} */
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shaka.log.debug = function() {};
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/** @type {function(*, ...*)} */
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shaka.log.v1 = function() {};
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/** @type {function(*, ...*)} */
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shaka.log.v2 = function() {};
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// IE8 has no console unless it is opened in advance.
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// IE9 console methods are not Functions and have no bind.
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if (window.console && window.console.log.bind) {
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if (!COMPILED) {
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/**
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* Change the log level. Useful for debugging in uncompiled mode.
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*
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* @param {number} level
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*/
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shaka.log.setLevel = function(level) {
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var nop = function() {};
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var log = shaka.log;
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var Level = shaka.log.Level;
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log.error = (level >= Level.ERROR) ? console.error.bind(console) : nop;
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log.warning = (level >= Level.WARNING) ? console.warn.bind(console) : nop;
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log.info = (level >= Level.INFO) ? console.info.bind(console) : nop;
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log.debug = (level >= Level.DEBUG) ? console.log.bind(console) : nop;
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log.v1 = (level >= Level.V1) ? console.debug.bind(console) : nop;
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log.v2 = (level >= Level.V2) ? console.debug.bind(console) : nop;
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};
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} else {
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if (shaka.log.MAX_LOG_LEVEL >= shaka.log.Level.ERROR) {
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shaka.log.error = console.error.bind(console);
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}
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if (shaka.log.MAX_LOG_LEVEL >= shaka.log.Level.WARNING) {
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shaka.log.warning = console.warn.bind(console);
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}
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if (shaka.log.MAX_LOG_LEVEL >= shaka.log.Level.INFO) {
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shaka.log.info = console.info.bind(console);
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}
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if (shaka.log.MAX_LOG_LEVEL >= shaka.log.Level.DEBUG) {
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shaka.log.debug = console.log.bind(console);
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}
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if (shaka.log.MAX_LOG_LEVEL >= shaka.log.Level.V1) {
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shaka.log.v1 = console.debug.bind(console);
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}
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if (shaka.log.MAX_LOG_LEVEL >= shaka.log.Level.V2) {
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shaka.log.v2 = console.debug.bind(console);
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}
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}
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}
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