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webgui/www/extras/yui/build/logger/logger.js
JT Smith 4f68a0933c added YUI and YUI-ext 
fixed the resizable text area with IE problem
fixed the ad space with IE problem
merged the 7.2.0 and 7.1.4 change logs
2006-11-07 23:15:57 +00:00

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JavaScript
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/*
Copyright (c) 2006, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.com/yui/license.txt
version: 0.11.3
*/
/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
/**
* Singleton providing core logging functionality. Saves logs written through the
* global YAHOO.log function or written by LogWriter. Provides access to logs
* for reading by LogReader. Log messages can be automatically output to browser
* console such as the Firebug extension to Firefox or Safari's JavaScript
* console, if present.
*
* requires YAHOO.util.Event Event utility
*/
YAHOO.widget.Logger = {
// Initialize members
loggerEnabled: true,
_browserConsoleEnabled: false,
categories: ["info","warn","error","time","window"],
sources: ["global"],
_stack: [], // holds all log msgs
maxStackEntries: 5,
_startTime: new Date().getTime(), // static start timestamp
_lastTime: null // timestamp of last logged message
};
/***************************************************************************
* Events
***************************************************************************/
/**
* Fired when a new category has been created. Subscribers receive the following
* array:<br>
* - args[0] The category name
*/
YAHOO.widget.Logger.categoryCreateEvent = new YAHOO.util.CustomEvent("categoryCreate", this, true);
/**
* Fired when a new source has been named. Subscribers receive the following
* array:<br>
* - args[0] The source name
*/
YAHOO.widget.Logger.sourceCreateEvent = new YAHOO.util.CustomEvent("sourceCreate", this, true);
/**
* Fired when a new log message has been created. Subscribers receive the
* following array:<br>
* - args[0] The log message
*/
YAHOO.widget.Logger.newLogEvent = new YAHOO.util.CustomEvent("newLog", this, true);
/**
* Fired when the Logger has been reset has been created.
*/
YAHOO.widget.Logger.logResetEvent = new YAHOO.util.CustomEvent("logReset", this, true);
/***************************************************************************
* Public methods
***************************************************************************/
/**
* Saves a log message to the stack and fires newLogEvent. If the log message is
* assigned to an unknown category, creates a new category. If the log message is
* from an unknown source, creates a new source. If browser console is enabled,
* outputs the log message to browser console.
*
* @param {string} sMsg The log message
* @param {string} sCategory Category of log message, or null
* @param {string} sSource Source of LogWriter, or null if global
*/
YAHOO.widget.Logger.log = function(sMsg, sCategory, sSource) {
if(this.loggerEnabled) {
if(!sCategory) {
sCategory = "info"; // default category
}
else {
sCategory = sCategory.toLocaleLowerCase();
if(this._isNewCategory(sCategory)) {
this._createNewCategory(sCategory);
}
}
var sClass = "global"; // default source
var sDetail = null;
if(sSource) {
var spaceIndex = sSource.indexOf(" ");
if(spaceIndex > 0) {
sClass = sSource.substring(0,spaceIndex);// substring until first space
sDetail = sSource.substring(spaceIndex,sSource.length);// the rest of the source
}
else {
sClass = sSource;
}
if(this._isNewSource(sClass)) {
this._createNewSource(sClass);
}
}
var timestamp = new Date();
var logEntry = {
time: timestamp,
category: sCategory,
source: sClass,
sourceDetail: sDetail,
msg: sMsg
};
var stack = this._stack;
var maxStackEntries = this.maxStackEntries;
if(maxStackEntries && !isNaN(maxStackEntries) && (stack.length >= maxStackEntries)) {
stack.shift();
}
stack.push(logEntry);
this.newLogEvent.fire(logEntry);
if(this._browserConsoleEnabled) {
this._printToBrowserConsole(logEntry);
}
return true;
}
else {
return false;
}
};
/**
* Resets internal stack and startTime, enables Logger, and fires logResetEvent.
*
*/
YAHOO.widget.Logger.reset = function() {
this._stack = [];
this._startTime = new Date().getTime();
this.loggerEnabled = true;
this.log("Logger reset");
this.logResetEvent.fire();
};
/**
* Public accessor to internal stack of log messages.
*
* @return {array} Array of log messages.
*/
YAHOO.widget.Logger.getStack = function() {
return this._stack;
};
/**
* Public accessor to internal start time.
*
* @return {date} Internal date of when Logger singleton was initialized.
*/
YAHOO.widget.Logger.getStartTime = function() {
return this._startTime;
};
/**
* Disables output to the browser's global console.log() function, which is used
* by the Firebug extension to Firefox as well as Safari.
*/
YAHOO.widget.Logger.disableBrowserConsole = function() {
YAHOO.log("Logger output to the function console.log() has been disabled.");
this._browserConsoleEnabled = false;
};
/**
* Enables output to the browser's global console.log() function, which is used
* by the Firebug extension to Firefox as well as Safari.
*/
YAHOO.widget.Logger.enableBrowserConsole = function() {
this._browserConsoleEnabled = true;
YAHOO.log("Logger output to the function console.log() has been enabled.");
};
/***************************************************************************
* Private methods
***************************************************************************/
/**
* Creates a new category of log messages and fires categoryCreateEvent.
*
* @param {string} category Category name
* @private
*/
YAHOO.widget.Logger._createNewCategory = function(category) {
this.categories.push(category);
this.categoryCreateEvent.fire(category);
};
/**
* Checks to see if a category has already been created.
*
* @param {string} category Category name
* @return {boolean} Returns true if category is unknown, else returns false
* @private
*/
YAHOO.widget.Logger._isNewCategory = function(category) {
for(var i=0; i < this.categories.length; i++) {
if(category == this.categories[i]) {
return false;
}
}
return true;
};
/**
* Creates a new source of log messages and fires sourceCreateEvent.
*
* @param {string} source Source name
* @private
*/
YAHOO.widget.Logger._createNewSource = function(source) {
this.sources.push(source);
this.sourceCreateEvent.fire(source);
};
/**
* Checks to see if a source has already been created.
*
* @param {string} source Source name
* @return {boolean} Returns true if source is unknown, else returns false
* @private
*/
YAHOO.widget.Logger._isNewSource = function(source) {
if(source) {
for(var i=0; i < this.sources.length; i++) {
if(source == this.sources[i]) {
return false;
}
}
return true;
}
};
/**
* Outputs a log message to global console.log() function.
*
* @param {object} entry Log entry object
* @private
*/
YAHOO.widget.Logger._printToBrowserConsole = function(entry) {
if(window.console && console.log) {
var category = entry.category;
var label = entry.category.substring(0,4).toUpperCase();
var time = entry.time;
if (time.toLocaleTimeString) {
var localTime = time.toLocaleTimeString();
}
else {
localTime = time.toString();
}
var msecs = time.getTime();
var elapsedTime = (YAHOO.widget.Logger._lastTime) ?
(msecs - YAHOO.widget.Logger._lastTime) : 0;
YAHOO.widget.Logger._lastTime = msecs;
var output =
localTime + " (" +
elapsedTime + "ms): " +
entry.source + ": " +
entry.msg;
console.log(output);
}
};
/***************************************************************************
* Private event handlers
***************************************************************************/
/**
* Handles logging of messages due to window error events.
*
* @param {string} msg The error message
* @param {string} url URL of the error
* @param {string} line Line number of the error
* @private
*/
YAHOO.widget.Logger._onWindowError = function(msg,url,line) {
// Logger is not in scope of this event handler
try {
YAHOO.widget.Logger.log(msg+' ('+url+', line '+line+')', "window");
if(YAHOO.widget.Logger._origOnWindowError) {
YAHOO.widget.Logger._origOnWindowError();
}
}
catch(e) {
return false;
}
};
/**
* Handle native JavaScript errors
*/
//NB: Not all browsers support the window.onerror event
if(window.onerror) {
// Save any previously defined handler to call
YAHOO.widget.Logger._origOnWindowError = window.onerror;
}
window.onerror = YAHOO.widget.Logger._onWindowError;
/**
* First log
*/
YAHOO.widget.Logger.log("Logger initialized");
/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
/**
* Class providing ability to log messages through YAHOO.widget.Logger from a
* named source.
*
* @constructor
* @param {string} sSource Source of LogWriter instance
*/
YAHOO.widget.LogWriter = function(sSource) {
if(!sSource) {
YAHOO.log("Could not instantiate LogWriter due to invalid source.", "error", "LogWriter");
return;
}
this._source = sSource;
};
/***************************************************************************
* Public methods
***************************************************************************/
/**
* Public accessor to the unique name of the LogWriter instance.
*
* @return {string} Unique name of the LogWriter instance
*/
YAHOO.widget.LogWriter.prototype.toString = function() {
return "LogWriter " + this._sSource;
};
/**
* Logs a message attached to the source of the LogWriter.
*
* @param {string} sMsg The log message
* @param {string} sCategory Category name
*/
YAHOO.widget.LogWriter.prototype.log = function(sMsg, sCategory) {
YAHOO.widget.Logger.log(sMsg, sCategory, this._source);
};
/**
* Public accessor to get the source name.
*
* @return {string} The LogWriter source
*/
YAHOO.widget.LogWriter.prototype.getSource = function() {
return this._sSource;
};
/**
* Public accessor to set the source name.
*
* @param {string} sSource Source of LogWriter instance
*/
YAHOO.widget.LogWriter.prototype.setSource = function(sSource) {
if(!sSource) {
YAHOO.log("Could not set source due to invalid source.", "error", this.toString());
return;
}
else {
this._sSource = sSource;
}
};
/***************************************************************************
* Private members
***************************************************************************/
/**
* Source of the log writer instance.
*
* @type string
* @private
*/
YAHOO.widget.LogWriter.prototype._source = null;
/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
/**
* Class providing UI to read messages logged to YAHOO.widget.Logger.
*
* requires YAHOO.util.Dom DOM utility
* requires YAHOO.util.Event Event utility
* optional YAHOO.util.DragDrop Drag and drop utility
*
* @constructor
* @param {el or ID} containerEl DOM element object or ID of container to wrap reader UI
* @param {object} oConfig Optional object literal of configuration params
*/
YAHOO.widget.LogReader = function(containerEl, oConfig) {
var oSelf = this;
this._sName = YAHOO.widget.LogReader._index;
YAHOO.widget.LogReader._index++;
// Parse config vars here
if (typeof oConfig == "object") {
for(var param in oConfig) {
this[param] = oConfig[param];
}
}
// Attach container...
if(containerEl) {
if(typeof containerEl == "string") {
this._containerEl = document.getElementById(containerEl);
}
else if(containerEl.tagName) {
this._containerEl = containerEl;
}
this._containerEl.className = "yui-log";
}
// ...or create container from scratch
if(!this._containerEl) {
if(YAHOO.widget.LogReader._defaultContainerEl) {
this._containerEl = YAHOO.widget.LogReader._defaultContainerEl;
}
else {
this._containerEl = document.body.appendChild(document.createElement("div"));
this._containerEl.id = "yui-log";
this._containerEl.className = "yui-log";
YAHOO.widget.LogReader._defaultContainerEl = this._containerEl;
}
// If implementer has provided container values, trust and set those
var containerStyle = this._containerEl.style;
if(this.width) {
containerStyle.width = this.width;
}
if(this.left) {
containerStyle.left = this.left;
}
if(this.right) {
containerStyle.right = this.right;
}
if(this.bottom) {
containerStyle.bottom = this.bottom;
}
if(this.top) {
containerStyle.top = this.top;
}
if(this.fontSize) {
containerStyle.fontSize = this.fontSize;
}
}
if(this._containerEl) {
// Create header
if(!this._hdEl) {
this._hdEl = this._containerEl.appendChild(document.createElement("div"));
this._hdEl.id = "yui-log-hd" + this._sName;
this._hdEl.className = "yui-log-hd";
this._collapseEl = this._hdEl.appendChild(document.createElement("div"));
this._collapseEl.className = "yui-log-btns";
this._collapseBtn = document.createElement("input");
this._collapseBtn.type = "button";
this._collapseBtn.style.fontSize = YAHOO.util.Dom.getStyle(this._containerEl,"fontSize");
this._collapseBtn.className = "yui-log-button";
this._collapseBtn.value = "Collapse";
this._collapseBtn = this._collapseEl.appendChild(this._collapseBtn);
YAHOO.util.Event.addListener(oSelf._collapseBtn,'click',oSelf._onClickCollapseBtn,oSelf);
this._title = this._hdEl.appendChild(document.createElement("h4"));
this._title.innerHTML = "Logger Console";
// If Drag and Drop utility is available...
// ...and this container was created from scratch...
// ...then make the header draggable
if(YAHOO.util.DD &&
(YAHOO.widget.LogReader._defaultContainerEl == this._containerEl)) {
var ylog_dd = new YAHOO.util.DD(this._containerEl.id);
ylog_dd.setHandleElId(this._hdEl.id);
this._hdEl.style.cursor = "move";
}
}
// Ceate console
if(!this._consoleEl) {
this._consoleEl = this._containerEl.appendChild(document.createElement("div"));
this._consoleEl.className = "yui-log-bd";
// If implementer has provided console, trust and set those
if(this.height) {
this._consoleEl.style.height = this.height;
}
}
// Don't create footer if disabled
if(!this._ftEl && this.footerEnabled) {
this._ftEl = this._containerEl.appendChild(document.createElement("div"));
this._ftEl.className = "yui-log-ft";
this._btnsEl = this._ftEl.appendChild(document.createElement("div"));
this._btnsEl.className = "yui-log-btns";
this._pauseBtn = document.createElement("input");
this._pauseBtn.type = "button";
this._pauseBtn.style.fontSize = YAHOO.util.Dom.getStyle(this._containerEl,"fontSize");
this._pauseBtn.className = "yui-log-button";
this._pauseBtn.value = "Pause";
this._pauseBtn = this._btnsEl.appendChild(this._pauseBtn);
YAHOO.util.Event.addListener(oSelf._pauseBtn,'click',oSelf._onClickPauseBtn,oSelf);
this._clearBtn = document.createElement("input");
this._clearBtn.type = "button";
this._clearBtn.style.fontSize = YAHOO.util.Dom.getStyle(this._containerEl,"fontSize");
this._clearBtn.className = "yui-log-button";
this._clearBtn.value = "Clear";
this._clearBtn = this._btnsEl.appendChild(this._clearBtn);
YAHOO.util.Event.addListener(oSelf._clearBtn,'click',oSelf._onClickClearBtn,oSelf);
this._categoryFiltersEl = this._ftEl.appendChild(document.createElement("div"));
this._categoryFiltersEl.className = "yui-log-categoryfilters";
this._sourceFiltersEl = this._ftEl.appendChild(document.createElement("div"));
this._sourceFiltersEl.className = "yui-log-sourcefilters";
}
}
// Initialize internal vars
if(!this._buffer) {
this._buffer = []; // output buffer
}
this._lastTime = YAHOO.widget.Logger.getStartTime(); // timestamp of last log message to console
// Subscribe to Logger custom events
YAHOO.widget.Logger.newLogEvent.subscribe(this._onNewLog, this);
YAHOO.widget.Logger.logResetEvent.subscribe(this._onReset, this);
// Initialize category filters
this._categoryFilters = [];
var catsLen = YAHOO.widget.Logger.categories.length;
if(this._categoryFiltersEl) {
for(var i=0; i < catsLen; i++) {
this._createCategoryCheckbox(YAHOO.widget.Logger.categories[i]);
}
}
// Initialize source filters
this._sourceFilters = [];
var sourcesLen = YAHOO.widget.Logger.sources.length;
if(this._sourceFiltersEl) {
for(var j=0; j < sourcesLen; j++) {
this._createSourceCheckbox(YAHOO.widget.Logger.sources[j]);
}
}
YAHOO.widget.Logger.categoryCreateEvent.subscribe(this._onCategoryCreate, this);
YAHOO.widget.Logger.sourceCreateEvent.subscribe(this._onSourceCreate, this);
this._filterLogs();
YAHOO.log("LogReader initialized", null, this.toString());
};
/***************************************************************************
* Public members
***************************************************************************/
/**
* Whether or not the log reader is enabled to output log messages. Default:
* true.
*
* @type boolean
*/
YAHOO.widget.LogReader.prototype.logReaderEnabled = true;
/**
* Public member to access CSS width of the log reader container.
*
* @type string
*/
YAHOO.widget.LogReader.prototype.width = null;
/**
* Public member to access CSS height of the log reader container.
*
* @type string
*/
YAHOO.widget.LogReader.prototype.height = null;
/**
* Public member to access CSS top position of the log reader container.
*
* @type string
*/
YAHOO.widget.LogReader.prototype.top = null;
/**
* Public member to access CSS left position of the log reader container.
*
* @type string
*/
YAHOO.widget.LogReader.prototype.left = null;
/**
* Public member to access CSS right position of the log reader container.
*
* @type string
*/
YAHOO.widget.LogReader.prototype.right = null;
/**
* Public member to access CSS bottom position of the log reader container.
*
* @type string
*/
YAHOO.widget.LogReader.prototype.bottom = null;
/**
* Public member to access CSS font size of the log reader container.
*
* @type string
*/
YAHOO.widget.LogReader.prototype.fontSize = null;
/**
* Whether or not the footer UI is enabled for the log reader. Default: true.
*
* @type boolean
*/
YAHOO.widget.LogReader.prototype.footerEnabled = true;
/**
* Whether or not output is verbose (more readable). Setting to true will make
* output more compact (less readable). Default: true.
*
* @type boolean
*/
YAHOO.widget.LogReader.prototype.verboseOutput = true;
/**
* Whether or not newest message is printed on top. Default: true.
*
* @type boolean
*/
YAHOO.widget.LogReader.prototype.newestOnTop = true;
/**
* Maximum number of messages a LogReader console will display. Default: 500;
*
* @type number
*/
YAHOO.widget.LogReader.prototype.thresholdMax = 500;
/**
* When a LogReader console reaches its thresholdMax, it will clear out messages
* and print out the latest thresholdMin number of messages. Default: 100;
*
* @type number
*/
YAHOO.widget.LogReader.prototype.thresholdMin = 100;
/***************************************************************************
* Public methods
***************************************************************************/
/**
* Public accessor to the unique name of the LogReader instance.
*
* @return {string} Unique name of the LogReader instance
*/
YAHOO.widget.LogReader.prototype.toString = function() {
return "LogReader instance" + this._sName;
};
/**
* Pauses output of log messages. While paused, log messages are not lost, but
* get saved to a buffer and then output upon resume of log reader.
*/
YAHOO.widget.LogReader.prototype.pause = function() {
this._timeout = null;
this.logReaderEnabled = false;
};
/**
* Resumes output of log messages, including outputting any log messages that
* have been saved to buffer while paused.
*/
YAHOO.widget.LogReader.prototype.resume = function() {
this.logReaderEnabled = true;
this._printBuffer();
};
/**
* Hides UI of log reader. Logging functionality is not disrupted.
*/
YAHOO.widget.LogReader.prototype.hide = function() {
this._containerEl.style.display = "none";
};
/**
* Shows UI of log reader. Logging functionality is not disrupted.
*/
YAHOO.widget.LogReader.prototype.show = function() {
this._containerEl.style.display = "block";
};
/**
* Updates title to given string.
*
* @param {string} sTitle String to display in log reader's title bar.
*/
YAHOO.widget.LogReader.prototype.setTitle = function(sTitle) {
this._title.innerHTML = this._HTML2Text(sTitle);
};
/***************************************************************************
* Private members
***************************************************************************/
/**
* Internal class member to index multiple log reader instances.
*
* @type number
* @private
*/
YAHOO.widget.LogReader._index = 0;
/**
* Name of LogReader instance.
*
* @type string
* @private
*/
YAHOO.widget.LogReader.prototype._sName = null;
/**
* A class member shared by all log readers if a container needs to be
* created during instantiation. Will be null if a container element never needs to
* be created on the fly, such as when the implementer passes in their own element.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader._defaultContainerEl = null;
/**
* Buffer of log messages for batch output.
*
* @type array
* @private
*/
YAHOO.widget.LogReader.prototype._buffer = null;
/**
* Number of log messages output to console.
*
* @type number
* @private
*/
YAHOO.widget.LogReader.prototype._consoleMsgCount = 0;
/**
* Date of last output log message.
*
* @type date
* @private
*/
YAHOO.widget.LogReader.prototype._lastTime = null;
/**
* Batched output timeout ID.
*
* @type number
* @private
*/
YAHOO.widget.LogReader.prototype._timeout = null;
/**
* Array of filters for log message categories.
*
* @type array
* @private
*/
YAHOO.widget.LogReader.prototype._categoryFilters = null;
/**
* Array of filters for log message sources.
*
* @type array
* @private
*/
YAHOO.widget.LogReader.prototype._sourceFilters = null;
/**
* Log reader container element.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._containerEl = null;
/**
* Log reader header element.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._hdEl = null;
/**
* Log reader collapse element.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._collapseEl = null;
/**
* Log reader collapse button element.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._collapseBtn = null;
/**
* Log reader title header element.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._title = null;
/**
* Log reader console element.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._consoleEl = null;
/**
* Log reader footer element.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._ftEl = null;
/**
* Log reader buttons container element.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._btnsEl = null;
/**
* Container element for log reader category filter checkboxes.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._categoryFiltersEl = null;
/**
* Container element for log reader source filter checkboxes.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._sourceFiltersEl = null;
/**
* Log reader pause button element.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._pauseBtn = null;
/**
* Clear button element.
*
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._clearBtn = null;
/***************************************************************************
* Private methods
***************************************************************************/
/**
* Creates the UI for a category filter in the log reader footer element.
*
* @param {string} category Category name
* @private
*/
YAHOO.widget.LogReader.prototype._createCategoryCheckbox = function(category) {
var oSelf = this;
if(this._ftEl) {
var parentEl = this._categoryFiltersEl;
var filters = this._categoryFilters;
var filterEl = parentEl.appendChild(document.createElement("span"));
filterEl.className = "yui-log-filtergrp";
// Append el at the end so IE 5.5 can set "type" attribute
// and THEN set checked property
var categoryChk = document.createElement("input");
categoryChk.id = "yui-log-filter-" + category + this._sName;
categoryChk.className = "yui-log-filter-" + category;
categoryChk.type = "checkbox";
categoryChk.category = category;
categoryChk = filterEl.appendChild(categoryChk);
categoryChk.checked = true;
// Add this checked filter to the internal array of filters
filters.push(category);
// Subscribe to the click event
YAHOO.util.Event.addListener(categoryChk,'click',oSelf._onCheckCategory,oSelf);
// Create and class the text label
var categoryChkLbl = filterEl.appendChild(document.createElement("label"));
categoryChkLbl.htmlFor = categoryChk.id;
categoryChkLbl.className = category;
categoryChkLbl.innerHTML = category;
}
};
YAHOO.widget.LogReader.prototype._createSourceCheckbox = function(source) {
var oSelf = this;
if(this._ftEl) {
var parentEl = this._sourceFiltersEl;
var filters = this._sourceFilters;
var filterEl = parentEl.appendChild(document.createElement("span"));
filterEl.className = "yui-log-filtergrp";
// Append el at the end so IE 5.5 can set "type" attribute
// and THEN set checked property
var sourceChk = document.createElement("input");
sourceChk.id = "yui-log-filter" + source + this._sName;
sourceChk.className = "yui-log-filter" + source;
sourceChk.type = "checkbox";
sourceChk.source = source;
sourceChk = filterEl.appendChild(sourceChk);
sourceChk.checked = true;
// Add this checked filter to the internal array of filters
filters.push(source);
// Subscribe to the click event
YAHOO.util.Event.addListener(sourceChk,'click',oSelf._onCheckSource,oSelf);
// Create and class the text label
var sourceChkLbl = filterEl.appendChild(document.createElement("label"));
sourceChkLbl.htmlFor = sourceChk.id;
sourceChkLbl.className = source;
sourceChkLbl.innerHTML = source;
}
};
/**
* Reprints all log messages in the stack through filters.
*
* @private
*/
YAHOO.widget.LogReader.prototype._filterLogs = function() {
// Reprint stack with new filters
if (this._consoleEl !== null) {
this._clearConsole();
this._printToConsole(YAHOO.widget.Logger.getStack());
}
};
/**
* Clears all outputted log messages from the console and resets the time of the
* last output log message.
*
* @private
*/
YAHOO.widget.LogReader.prototype._clearConsole = function() {
// Clear the buffer of any pending messages
this._timeout = null;
this._buffer = [];
this._consoleMsgCount = 0;
// Reset the rolling timer
this._lastTime = YAHOO.widget.Logger.getStartTime();
var consoleEl = this._consoleEl;
while(consoleEl.hasChildNodes()) {
consoleEl.removeChild(consoleEl.firstChild);
}
};
/**
* Sends buffer of log messages to output and clears buffer.
*
* @private
*/
YAHOO.widget.LogReader.prototype._printBuffer = function() {
this._timeout = null;
if(this._consoleEl !== null) {
var thresholdMax = this.thresholdMax;
thresholdMax = (thresholdMax && !isNaN(thresholdMax)) ? thresholdMax : 500;
if(this._consoleMsgCount < thresholdMax) {
var entries = [];
for (var i=0; i<this._buffer.length; i++) {
entries[i] = this._buffer[i];
}
this._buffer = [];
this._printToConsole(entries);
}
else {
this._filterLogs();
}
if(!this.newestOnTop) {
this._consoleEl.scrollTop = this._consoleEl.scrollHeight;
}
}
};
/**
* Cycles through an array of log messages, and outputs each one to the console
* if its category has not been filtered out.
*
* @param {array} aEntries
* @private
*/
YAHOO.widget.LogReader.prototype._printToConsole = function(aEntries) {
// Manage the number of messages displayed in the console
var entriesLen = aEntries.length;
var thresholdMin = this.thresholdMin;
if(isNaN(thresholdMin) || (thresholdMin > this.thresholdMax)) {
thresholdMin = 0;
}
var entriesStartIndex = (entriesLen > thresholdMin) ? (entriesLen - thresholdMin) : 0;
// Iterate through all log entries to print the ones that filter through
var sourceFiltersLen = this._sourceFilters.length;
var categoryFiltersLen = this._categoryFilters.length;
for(var i=entriesStartIndex; i<entriesLen; i++) {
var entry = aEntries[i];
var category = entry.category;
var source = entry.source;
var sourceDetail = entry.sourceDetail;
var okToPrint = false;
var okToFilterCats = false;
for(var j=0; j<sourceFiltersLen; j++) {
if(source == this._sourceFilters[j]) {
okToFilterCats = true;
break;
}
}
if(okToFilterCats) {
for(var k=0; k<categoryFiltersLen; k++) {
if(category == this._categoryFilters[k]) {
okToPrint = true;
break;
}
}
}
if(okToPrint) {
// To format for console, calculate the elapsed time
// to be from the last item that passed through the filter,
// not the absolute previous item in the stack
var label = entry.category.substring(0,4).toUpperCase();
var time = entry.time;
if (time.toLocaleTimeString) {
var localTime = time.toLocaleTimeString();
}
else {
localTime = time.toString();
}
var msecs = time.getTime();
var startTime = YAHOO.widget.Logger.getStartTime();
var totalTime = msecs - startTime;
var elapsedTime = msecs - this._lastTime;
this._lastTime = msecs;
var verboseOutput = (this.verboseOutput);
var container = (verboseOutput) ? "CODE" : "PRE";
var sourceAndDetail = (sourceDetail) ?
source + " " + sourceDetail : source;
// Verbose uses code tag instead of pre tag (for wrapping)
// and includes extra line breaks
var output = (verboseOutput) ?
["<p><span class='", category, "'>", label, "</span> ",
totalTime, "ms (+", elapsedTime, ") ",
localTime, ": ",
"</p><p>",
sourceAndDetail,
": </p><p>",
this._HTML2Text(entry.msg),
"</p>"] :
["<p><span class='", category, "'>", label, "</span> ",
totalTime, "ms (+", elapsedTime, ") ",
localTime, ": ",
sourceAndDetail, ": ",
this._HTML2Text(entry.msg),"</p>"];
var oNewElement = (this.newestOnTop) ?
this._consoleEl.insertBefore(document.createElement(container),this._consoleEl.firstChild):
this._consoleEl.appendChild(document.createElement(container));
oNewElement.innerHTML = output.join("");
this._consoleMsgCount++;
}
}
};
/**
* Converts input chars "<", ">", and "&" to HTML entities.
*
* @private
*/
YAHOO.widget.LogReader.prototype._HTML2Text = function(html) {
if(html) {
return html.replace(/&/g, "&#38;").replace(/</g, "&#60;").replace(/>/g, "&#62;");
}
else return "";
};
/***************************************************************************
* Private event handlers
***************************************************************************/
/**
* Handles Logger's categoryCreateEvent.
*
* @param {string} type The event
* @param {array} args Data passed from event firer
* @param {object} oSelf The log reader instance
* @private
*/
YAHOO.widget.LogReader.prototype._onCategoryCreate = function(type, args, oSelf) {
var category = args[0];
if(oSelf._ftEl) {
oSelf._createCategoryCheckbox(category);
}
};
/**
* Handles Logger's sourceCreateEvent.
*
* @param {string} type The event
* @param {array} args Data passed from event firer
* @param {object} oSelf The log reader instance
* @private
*/
YAHOO.widget.LogReader.prototype._onSourceCreate = function(type, args, oSelf) {
var source = args[0];
if(oSelf._ftEl) {
oSelf._createSourceCheckbox(source);
}
};
/**
* Handles check events on the category filter checkboxes.
*
* @param {event} v The click event
* @param {object} oSelf The log reader instance
* @private
*/
YAHOO.widget.LogReader.prototype._onCheckCategory = function(v, oSelf) {
var newFilter = this.category;
var filtersArray = oSelf._categoryFilters;
if(!this.checked) { // Remove category from filters
for(var i=0; i<filtersArray.length; i++) {
if(newFilter == filtersArray[i]) {
filtersArray.splice(i, 1);
break;
}
}
}
else { // Add category to filters
filtersArray.push(newFilter);
}
oSelf._filterLogs();
};
/**
* Handles check events on the category filter checkboxes.
*
* @param {event} v The click event
* @param {object} oSelf The log reader instance
* @private
*/
YAHOO.widget.LogReader.prototype._onCheckSource = function(v, oSelf) {
var newFilter = this.source;
var filtersArray = oSelf._sourceFilters;
if(!this.checked) { // Remove category from filters
for(var i=0; i<filtersArray.length; i++) {
if(newFilter == filtersArray[i]) {
filtersArray.splice(i, 1);
break;
}
}
}
else { // Add category to filters
filtersArray.push(newFilter);
}
oSelf._filterLogs();
};
/**
* Handles click events on the collapse button.
*
* @param {event} v The click event
* @param {object} oSelf The log reader instance
* @private
*/
YAHOO.widget.LogReader.prototype._onClickCollapseBtn = function(v, oSelf) {
var btn = oSelf._collapseBtn;
if(btn.value == "Expand") {
oSelf._consoleEl.style.display = "block";
if(oSelf._ftEl) {
oSelf._ftEl.style.display = "block";
}
btn.value = "Collapse";
}
else {
oSelf._consoleEl.style.display = "none";
if(oSelf._ftEl) {
oSelf._ftEl.style.display = "none";
}
btn.value = "Expand";
}
};
/**
* Handles click events on the pause button.
*
* @param {event} v The click event
* @param {object} oSelf The log reader instance
* @private
*/
YAHOO.widget.LogReader.prototype._onClickPauseBtn = function(v, oSelf) {
var btn = oSelf._pauseBtn;
if(btn.value == "Resume") {
oSelf.resume();
btn.value = "Pause";
}
else {
oSelf.pause();
btn.value = "Resume";
}
};
/**
* Handles click events on the clear button.
*
* @param {event} v The click event
* @param {object} oSelf The log reader instance
* @private
*/
YAHOO.widget.LogReader.prototype._onClickClearBtn = function(v, oSelf) {
oSelf._clearConsole();
};
/**
* Handles Logger's newLogEvent.
*
* @param {string} type The newLog event
* @param {array} args Data passed from event firer
* @param {object} oSelf The log reader instance
* @private
*/
YAHOO.widget.LogReader.prototype._onNewLog = function(type, args, oSelf) {
var logEntry = args[0];
oSelf._buffer.push(logEntry);
if (oSelf.logReaderEnabled === true && oSelf._timeout === null) {
oSelf._timeout = setTimeout(function(){oSelf._printBuffer();}, 100);
}
};
/**
* Handles Logger's resetEvent.
*
* @param {string} type The click event
* @param {array} args Data passed from event firer
* @param {object} oSelf The log reader instance
* @private
*/
YAHOO.widget.LogReader.prototype._onReset = function(type, args, oSelf) {
oSelf._filterLogs();
};
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