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1 | /*** |
2 | ||
3 | MochiKit.Logging 1.4 | |
4 | ||
5 | See <http://mochikit.com/> for documentation, downloads, license, etc. | |
6 | ||
7 | (c) 2005 Bob Ippolito. All rights Reserved. | |
8 | ||
9 | ***/ | |
10 | ||
11 | if (typeof(dojo) != 'undefined') { | |
12 | dojo.provide('MochiKit.Logging'); | |
13 | dojo.require('MochiKit.Base'); | |
14 | } | |
15 | ||
16 | if (typeof(JSAN) != 'undefined') { | |
17 | JSAN.use("MochiKit.Base", []); | |
18 | } | |
19 | ||
20 | try { | |
21 | if (typeof(MochiKit.Base) == 'undefined') { | |
22 | throw ""; | |
23 | } | |
24 | } catch (e) { | |
25 | throw "MochiKit.Logging depends on MochiKit.Base!"; | |
26 | } | |
27 | ||
28 | if (typeof(MochiKit.Logging) == 'undefined') { | |
29 | MochiKit.Logging = {}; | |
30 | } | |
31 | ||
32 | MochiKit.Logging.NAME = "MochiKit.Logging"; | |
33 | MochiKit.Logging.VERSION = "1.4"; | |
34 | MochiKit.Logging.__repr__ = function () { | |
35 | return "[" + this.NAME + " " + this.VERSION + "]"; | |
36 | }; | |
37 | ||
38 | MochiKit.Logging.toString = function () { | |
39 | return this.__repr__(); | |
40 | }; | |
41 | ||
42 | ||
43 | MochiKit.Logging.EXPORT = [ | |
44 | "LogLevel", | |
45 | "LogMessage", | |
46 | "Logger", | |
47 | "alertListener", | |
48 | "logger", | |
49 | "log", | |
50 | "logError", | |
51 | "logDebug", | |
52 | "logFatal", | |
53 | "logWarning" | |
54 | ]; | |
55 | ||
56 | ||
57 | MochiKit.Logging.EXPORT_OK = [ | |
58 | "logLevelAtLeast", | |
59 | "isLogMessage", | |
60 | "compareLogMessage" | |
61 | ]; | |
62 | ||
63 | ||
64 | /** @id MochiKit.Logging.LogMessage */ | |
65 | MochiKit.Logging.LogMessage = function (num, level, info) { | |
66 | this.num = num; | |
67 | this.level = level; | |
68 | this.info = info; | |
69 | this.timestamp = new Date(); | |
70 | }; | |
71 | ||
72 | MochiKit.Logging.LogMessage.prototype = { | |
73 | /** @id MochiKit.Logging.LogMessage.prototype.repr */ | |
74 | repr: function () { | |
75 | var m = MochiKit.Base; | |
76 | return 'LogMessage(' + | |
77 | m.map( | |
78 | m.repr, | |
79 | [this.num, this.level, this.info] | |
80 | ).join(', ') + ')'; | |
81 | }, | |
82 | /** @id MochiKit.Logging.LogMessage.prototype.toString */ | |
83 | toString: MochiKit.Base.forwardCall("repr") | |
84 | }; | |
85 | ||
86 | MochiKit.Base.update(MochiKit.Logging, { | |
87 | /** @id MochiKit.Logging.logLevelAtLeast */ | |
88 | logLevelAtLeast: function (minLevel) { | |
89 | var self = MochiKit.Logging; | |
90 | if (typeof(minLevel) == 'string') { | |
91 | minLevel = self.LogLevel[minLevel]; | |
92 | } | |
93 | return function (msg) { | |
94 | var msgLevel = msg.level; | |
95 | if (typeof(msgLevel) == 'string') { | |
96 | msgLevel = self.LogLevel[msgLevel]; | |
97 | } | |
98 | return msgLevel >= minLevel; | |
99 | }; | |
100 | }, | |
101 | ||
102 | /** @id MochiKit.Logging.isLogMessage */ | |
103 | isLogMessage: function (/* ... */) { | |
104 | var LogMessage = MochiKit.Logging.LogMessage; | |
105 | for (var i = 0; i < arguments.length; i++) { | |
106 | if (!(arguments[i] instanceof LogMessage)) { | |
107 | return false; | |
108 | } | |
109 | } | |
110 | return true; | |
111 | }, | |
112 | ||
113 | /** @id MochiKit.Logging.compareLogMessage */ | |
114 | compareLogMessage: function (a, b) { | |
115 | return MochiKit.Base.compare([a.level, a.info], [b.level, b.info]); | |
116 | }, | |
117 | ||
118 | /** @id MochiKit.Logging.alertListener */ | |
119 | alertListener: function (msg) { | |
120 | alert( | |
121 | "num: " + msg.num + | |
122 | "\nlevel: " + msg.level + | |
123 | "\ninfo: " + msg.info.join(" ") | |
124 | ); | |
125 | } | |
126 | ||
127 | }); | |
128 | ||
129 | /** @id MochiKit.Logging.Logger */ | |
130 | MochiKit.Logging.Logger = function (/* optional */maxSize) { | |
131 | this.counter = 0; | |
132 | if (typeof(maxSize) == 'undefined' || maxSize === null) { | |
133 | maxSize = -1; | |
134 | } | |
135 | this.maxSize = maxSize; | |
136 | this._messages = []; | |
137 | this.listeners = {}; | |
138 | this.useNativeConsole = false; | |
139 | }; | |
140 | ||
141 | MochiKit.Logging.Logger.prototype = { | |
142 | /** @id MochiKit.Logging.Logger.prototype.clear */ | |
143 | clear: function () { | |
144 | this._messages.splice(0, this._messages.length); | |
145 | }, | |
146 | ||
147 | /** @id MochiKit.Logging.Logger.prototype.logToConsole */ | |
148 | logToConsole: function (msg) { | |
149 | if (typeof(window) != "undefined" && window.console | |
150 | && window.console.log) { | |
151 | // Safari and FireBug 0.4 | |
152 | // Percent replacement is a workaround for cute Safari crashing bug | |
153 | window.console.log(msg.replace(/%/g, '\uFF05')); | |
154 | } else if (typeof(opera) != "undefined" && opera.postError) { | |
155 | // Opera | |
156 | opera.postError(msg); | |
157 | } else if (typeof(printfire) == "function") { | |
158 | // FireBug 0.3 and earlier | |
159 | printfire(msg); | |
160 | } else if (typeof(Debug) != "undefined" && Debug.writeln) { | |
161 | // IE Web Development Helper (?) | |
162 | // http://www.nikhilk.net/Entry.aspx?id=93 | |
163 | Debug.writeln(msg); | |
164 | } else if (typeof(debug) != "undefined" && debug.trace) { | |
165 | // Atlas framework (?) | |
166 | // http://www.nikhilk.net/Entry.aspx?id=93 | |
167 | debug.trace(msg); | |
168 | } | |
169 | }, | |
170 | ||
171 | /** @id MochiKit.Logging.Logger.prototype.dispatchListeners */ | |
172 | dispatchListeners: function (msg) { | |
173 | for (var k in this.listeners) { | |
174 | var pair = this.listeners[k]; | |
175 | if (pair.ident != k || (pair[0] && !pair[0](msg))) { | |
176 | continue; | |
177 | } | |
178 | pair[1](msg); | |
179 | } | |
180 | }, | |
181 | ||
182 | /** @id MochiKit.Logging.Logger.prototype.addListener */ | |
183 | addListener: function (ident, filter, listener) { | |
184 | if (typeof(filter) == 'string') { | |
185 | filter = MochiKit.Logging.logLevelAtLeast(filter); | |
186 | } | |
187 | var entry = [filter, listener]; | |
188 | entry.ident = ident; | |
189 | this.listeners[ident] = entry; | |
190 | }, | |
191 | ||
192 | /** @id MochiKit.Logging.Logger.prototype.removeListener */ | |
193 | removeListener: function (ident) { | |
194 | delete this.listeners[ident]; | |
195 | }, | |
196 | ||
197 | /** @id MochiKit.Logging.Logger.prototype.baseLog */ | |
198 | baseLog: function (level, message/*, ...*/) { | |
199 | var msg = new MochiKit.Logging.LogMessage( | |
200 | this.counter, | |
201 | level, | |
202 | MochiKit.Base.extend(null, arguments, 1) | |
203 | ); | |
204 | this._messages.push(msg); | |
205 | this.dispatchListeners(msg); | |
206 | if (this.useNativeConsole) { | |
207 | this.logToConsole(msg.level + ": " + msg.info.join(" ")); | |
208 | } | |
209 | this.counter += 1; | |
210 | while (this.maxSize >= 0 && this._messages.length > this.maxSize) { | |
211 | this._messages.shift(); | |
212 | } | |
213 | }, | |
214 | ||
215 | /** @id MochiKit.Logging.Logger.prototype.getMessages */ | |
216 | getMessages: function (howMany) { | |
217 | var firstMsg = 0; | |
218 | if (!(typeof(howMany) == 'undefined' || howMany === null)) { | |
219 | firstMsg = Math.max(0, this._messages.length - howMany); | |
220 | } | |
221 | return this._messages.slice(firstMsg); | |
222 | }, | |
223 | ||
224 | /** @id MochiKit.Logging.Logger.prototype.getMessageText */ | |
225 | getMessageText: function (howMany) { | |
226 | if (typeof(howMany) == 'undefined' || howMany === null) { | |
227 | howMany = 30; | |
228 | } | |
229 | var messages = this.getMessages(howMany); | |
230 | if (messages.length) { | |
231 | var lst = map(function (m) { | |
232 | return '\n [' + m.num + '] ' + m.level + ': ' + m.info.join(' '); | |
233 | }, messages); | |
234 | lst.unshift('LAST ' + messages.length + ' MESSAGES:'); | |
235 | return lst.join(''); | |
236 | } | |
237 | return ''; | |
238 | }, | |
239 | ||
240 | /** @id MochiKit.Logging.Logger.prototype.debuggingBookmarklet */ | |
241 | debuggingBookmarklet: function (inline) { | |
242 | if (typeof(MochiKit.LoggingPane) == "undefined") { | |
243 | alert(this.getMessageText()); | |
244 | } else { | |
245 | MochiKit.LoggingPane.createLoggingPane(inline || false); | |
246 | } | |
247 | } | |
248 | }; | |
249 | ||
250 | MochiKit.Logging.__new__ = function () { | |
251 | this.LogLevel = { | |
252 | ERROR: 40, | |
253 | FATAL: 50, | |
254 | WARNING: 30, | |
255 | INFO: 20, | |
256 | DEBUG: 10 | |
257 | }; | |
258 | ||
259 | var m = MochiKit.Base; | |
260 | m.registerComparator("LogMessage", | |
261 | this.isLogMessage, | |
262 | this.compareLogMessage | |
263 | ); | |
264 | ||
265 | var partial = m.partial; | |
266 | ||
267 | var Logger = this.Logger; | |
268 | var baseLog = Logger.prototype.baseLog; | |
269 | m.update(this.Logger.prototype, { | |
270 | debug: partial(baseLog, 'DEBUG'), | |
271 | log: partial(baseLog, 'INFO'), | |
272 | error: partial(baseLog, 'ERROR'), | |
273 | fatal: partial(baseLog, 'FATAL'), | |
274 | warning: partial(baseLog, 'WARNING') | |
275 | }); | |
276 | ||
277 | // indirectly find logger so it can be replaced | |
278 | var self = this; | |
279 | var connectLog = function (name) { | |
280 | return function () { | |
281 | self.logger[name].apply(self.logger, arguments); | |
282 | }; | |
283 | }; | |
284 | ||
285 | /** @id MochiKit.Logging.log */ | |
286 | this.log = connectLog('log'); | |
287 | /** @id MochiKit.Logging.logError */ | |
288 | this.logError = connectLog('error'); | |
289 | /** @id MochiKit.Logging.logDebug */ | |
290 | this.logDebug = connectLog('debug'); | |
291 | /** @id MochiKit.Logging.logFatal */ | |
292 | this.logFatal = connectLog('fatal'); | |
293 | /** @id MochiKit.Logging.logWarning */ | |
294 | this.logWarning = connectLog('warning'); | |
295 | this.logger = new Logger(); | |
296 | this.logger.useNativeConsole = true; | |
297 | ||
298 | this.EXPORT_TAGS = { | |
299 | ":common": this.EXPORT, | |
300 | ":all": m.concat(this.EXPORT, this.EXPORT_OK) | |
301 | }; | |
302 | ||
303 | m.nameFunctions(this); | |
304 | ||
305 | }; | |
306 | ||
307 | if (typeof(printfire) == "undefined" && | |
308 | typeof(document) != "undefined" && document.createEvent && | |
309 | typeof(dispatchEvent) != "undefined") { | |
310 | // FireBug really should be less lame about this global function | |
311 | printfire = function () { | |
312 | printfire.args = arguments; | |
313 | var ev = document.createEvent("Events"); | |
314 | ev.initEvent("printfire", false, true); | |
315 | dispatchEvent(ev); | |
316 | }; | |
317 | } | |
318 | ||
319 | MochiKit.Logging.__new__(); | |
320 | ||
321 | MochiKit.Base._exportSymbols(this, MochiKit.Logging); |