/*
Copyright (c) 2006, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.com/yui/license.txt
version: 0.12.0
*/
/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
/**
* The LogMsg class defines a single log message.
*
* @class LogMsg
* @constructor
* @param oConfigs {Object} Object literal of configuration params.
*/
YAHOO.widget.LogMsg = function(oConfigs) {
// Parse configs
if (typeof oConfigs == "object") {
for(var param in oConfigs) {
this[param] = oConfigs[param];
}
}
};
/////////////////////////////////////////////////////////////////////////////
//
// Public member variables
//
/////////////////////////////////////////////////////////////////////////////
/**
* Log message.
*
* @property msg
* @type String
*/
YAHOO.widget.LogMsg.prototype.msg = null;
/**
* Log timestamp.
*
* @property time
* @type Date
*/
YAHOO.widget.LogMsg.prototype.time = null;
/**
* Log category.
*
* @property category
* @type String
*/
YAHOO.widget.LogMsg.prototype.category = null;
/**
* Log source. The first word passed in as the source argument.
*
* @property source
* @type String
*/
YAHOO.widget.LogMsg.prototype.source = null;
/**
* Log source detail. The remainder of the string passed in as the source argument, not
* including the first word (if any).
*
* @property sourceDetail
* @type String
*/
YAHOO.widget.LogMsg.prototype.sourceDetail = null;
/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
/**
* The LogWriter class provides a mechanism to log messages through
* YAHOO.widget.Logger from a named source.
*
* @class LogWriter
* @constructor
* @param sSource {String} 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.
*
* @method toString
* @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.
*
* @method log
* @param sMsg {String} The log message.
* @param sCategory {String} 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.
*
* @method getSource
* @return {String} The LogWriter source.
*/
YAHOO.widget.LogWriter.prototype.getSource = function() {
return this._sSource;
};
/**
* Public accessor to set the source name.
*
* @method setSource
* @param sSource {String} 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 member variables
//
/////////////////////////////////////////////////////////////////////////////
/**
* Source of the LogWriter instance.
*
* @property _source
* @type String
* @private
*/
YAHOO.widget.LogWriter.prototype._source = null;
/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
/**
* The LogReader class provides UI to read messages logged to YAHOO.widget.Logger.
*
* @class LogReader
* @constructor
* @param elContainer {HTMLElement} (optional) DOM element reference of an existing DIV.
* @param elContainer {String} (optional) String ID of an existing DIV.
* @param oConfigs {Object} (optional) Object literal of configuration params.
*/
YAHOO.widget.LogReader = function(elContainer, oConfigs) {
var oSelf = this;
this._sName = YAHOO.widget.LogReader._index;
YAHOO.widget.LogReader._index++;
// Parse config vars here
if (typeof oConfigs == "object") {
for(var param in oConfigs) {
this[param] = oConfigs[param];
}
}
// Attach container...
if(elContainer) {
if(typeof elContainer == "string") {
this._elContainer = document.getElementById(elContainer);
}
else if(elContainer.tagName) {
this._elContainer = elContainer;
}
this._elContainer.className = "yui-log";
}
// ...or create container from scratch
if(!this._elContainer) {
if(YAHOO.widget.LogReader._elDefaultContainer) {
this._elContainer = YAHOO.widget.LogReader._elDefaultContainer;
}
else {
this._elContainer = document.body.appendChild(document.createElement("div"));
this._elContainer.id = "yui-log";
this._elContainer.className = "yui-log";
YAHOO.widget.LogReader._elDefaultContainer = this._elContainer;
}
// If implementer has provided container values, trust and set those
var containerStyle = this._elContainer.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._elContainer) {
// Create header
if(!this._elHd) {
this._elHd = this._elContainer.appendChild(document.createElement("div"));
this._elHd.id = "yui-log-hd" + this._sName;
this._elHd.className = "yui-log-hd";
this._elCollapse = this._elHd.appendChild(document.createElement("div"));
this._elCollapse.className = "yui-log-btns";
this._btnCollapse = document.createElement("input");
this._btnCollapse.type = "button";
this._btnCollapse.style.fontSize =
YAHOO.util.Dom.getStyle(this._elContainer,"fontSize");
this._btnCollapse.className = "yui-log-button";
this._btnCollapse.value = "Collapse";
this._btnCollapse = this._elCollapse.appendChild(this._btnCollapse);
YAHOO.util.Event.addListener(
oSelf._btnCollapse,'click',oSelf._onClickCollapseBtn,oSelf);
this._title = this._elHd.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._elDefaultContainer == this._elContainer)) {
var ylog_dd = new YAHOO.util.DD(this._elContainer.id);
ylog_dd.setHandleElId(this._elHd.id);
this._elHd.style.cursor = "move";
}
}
// Ceate console
if(!this._elConsole) {
this._elConsole =
this._elContainer.appendChild(document.createElement("div"));
this._elConsole.className = "yui-log-bd";
// If implementer has provided console, trust and set those
if(this.height) {
this._elConsole.style.height = this.height;
}
}
// Don't create footer if disabled
if(!this._elFt && this.footerEnabled) {
this._elFt = this._elContainer.appendChild(document.createElement("div"));
this._elFt.className = "yui-log-ft";
this._elBtns = this._elFt.appendChild(document.createElement("div"));
this._elBtns.className = "yui-log-btns";
this._btnPause = document.createElement("input");
this._btnPause.type = "button";
this._btnPause.style.fontSize =
YAHOO.util.Dom.getStyle(this._elContainer,"fontSize");
this._btnPause.className = "yui-log-button";
this._btnPause.value = "Pause";
this._btnPause = this._elBtns.appendChild(this._btnPause);
YAHOO.util.Event.addListener(
oSelf._btnPause,'click',oSelf._onClickPauseBtn,oSelf);
this._btnClear = document.createElement("input");
this._btnClear.type = "button";
this._btnClear.style.fontSize =
YAHOO.util.Dom.getStyle(this._elContainer,"fontSize");
this._btnClear.className = "yui-log-button";
this._btnClear.value = "Clear";
this._btnClear = this._elBtns.appendChild(this._btnClear);
YAHOO.util.Event.addListener(
oSelf._btnClear,'click',oSelf._onClickClearBtn,oSelf);
this._elCategoryFilters = this._elFt.appendChild(document.createElement("div"));
this._elCategoryFilters.className = "yui-log-categoryfilters";
this._elSourceFilters = this._elFt.appendChild(document.createElement("div"));
this._elSourceFilters.className = "yui-log-sourcefilters";
}
}
// Initialize internal vars
if(!this._buffer) {
this._buffer = []; // output buffer
}
// Timestamp of last log message to console
this._lastTime = YAHOO.widget.Logger.getStartTime();
// 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._elCategoryFilters) {
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._elSourceFilters) {
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 member variables
//
/////////////////////////////////////////////////////////////////////////////
/**
* Whether or not the log reader is enabled to output log messages.
*
* @property logReaderEnabled
* @type Boolean
* @default true
*/
YAHOO.widget.LogReader.prototype.logReaderEnabled = true;
/**
* Public member to access CSS width of the log reader container.
*
* @property width
* @type String
*/
YAHOO.widget.LogReader.prototype.width = null;
/**
* Public member to access CSS height of the log reader container.
*
* @property height
* @type String
*/
YAHOO.widget.LogReader.prototype.height = null;
/**
* Public member to access CSS top position of the log reader container.
*
* @property top
* @type String
*/
YAHOO.widget.LogReader.prototype.top = null;
/**
* Public member to access CSS left position of the log reader container.
*
* @property left
* @type String
*/
YAHOO.widget.LogReader.prototype.left = null;
/**
* Public member to access CSS right position of the log reader container.
*
* @property right
* @type String
*/
YAHOO.widget.LogReader.prototype.right = null;
/**
* Public member to access CSS bottom position of the log reader container.
*
* @property bottom
* @type String
*/
YAHOO.widget.LogReader.prototype.bottom = null;
/**
* Public member to access CSS font size of the log reader container.
*
* @property fontSize
* @type String
*/
YAHOO.widget.LogReader.prototype.fontSize = null;
/**
* Whether or not the footer UI is enabled for the log reader.
*
* @property footerEnabled
* @type Boolean
* @default true
*/
YAHOO.widget.LogReader.prototype.footerEnabled = true;
/**
* Whether or not output is verbose (more readable). Setting to true will make
* output more compact (less readable).
*
* @property verboseOutput
* @type Boolean
* @default true
*/
YAHOO.widget.LogReader.prototype.verboseOutput = true;
/**
* Whether or not newest message is printed on top.
*
* @property newestOnTop
* @type Boolean
*/
YAHOO.widget.LogReader.prototype.newestOnTop = true;
/**
* Maximum number of messages a LogReader console will display.
*
* @property thresholdMax
* @type Number
* @default 500
*/
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.
*
* @property thresholdMin
* @type Number
* @default 100
*/
YAHOO.widget.LogReader.prototype.thresholdMin = 100;
/////////////////////////////////////////////////////////////////////////////
//
// Public methods
//
/////////////////////////////////////////////////////////////////////////////
/**
* Public accessor to the unique name of the LogReader instance.
*
* @method toString
* @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.
*
* @method pause
*/
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.
*
* @method resume
*/
YAHOO.widget.LogReader.prototype.resume = function() {
this.logReaderEnabled = true;
this._printBuffer();
};
/**
* Hides UI of log reader. Logging functionality is not disrupted.
*
* @method hide
*/
YAHOO.widget.LogReader.prototype.hide = function() {
this._elContainer.style.display = "none";
};
/**
* Shows UI of log reader. Logging functionality is not disrupted.
*
* @method show
*/
YAHOO.widget.LogReader.prototype.show = function() {
this._elContainer.style.display = "block";
};
/**
* Updates title to given string.
*
* @method setTitle
* @param sTitle {String} New title.
*/
YAHOO.widget.LogReader.prototype.setTitle = function(sTitle) {
this._title.innerHTML = this.html2Text(sTitle);
};
/**
* Gets timestamp of the last log.
*
* @method getLastTime
* @return {Date} Timestamp of the last log.
*/
YAHOO.widget.LogReader.prototype.getLastTime = function() {
return this._lastTime;
};
/**
* Formats message string to HTML for output to console.
*
* @method formatMsg
* @param oLogMsg {Object} Log message object.
* @return {String} HTML-formatted message for output to console.
*/
YAHOO.widget.LogReader.prototype.formatMsg = function(oLogMsg) {
var category = oLogMsg.category;
// Label for color-coded display
var label = category.substring(0,4).toUpperCase();
// Calculate the elapsed time to be from the last item that passed through the filter,
// not the absolute previous item in the stack
var time = oLogMsg.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.getLastTime();
var source = oLogMsg.source;
var sourceDetail = oLogMsg.sourceDetail;
var sourceAndDetail = (sourceDetail) ?
source + " " + sourceDetail : source;
// Escape HTML entities in the log message itself for output to console
var msg = this.html2Text(oLogMsg.msg);
// Verbose output includes extra line breaks
var output = (this.verboseOutput) ?
["<p><span class='", category, "'>", label, "</span> ",
totalTime, "ms (+", elapsedTime, ") ",
localTime, ": ",
"</p><p>",
sourceAndDetail,
": </p><p>",
msg,
"</p>"] :
["<p><span class='", category, "'>", label, "</span> ",
totalTime, "ms (+", elapsedTime, ") ",
localTime, ": ",
sourceAndDetail, ": ",
msg,"</p>"];
return output.join("");
};
/**
* Converts input chars "<", ">", and "&" to HTML entities.
*
* @method html2Text
* @param sHtml {String} String to convert.
* @private
*/
YAHOO.widget.LogReader.prototype.html2Text = function(sHtml) {
if(sHtml) {
sHtml += "";
return sHtml.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">");
}
return "";
};
/////////////////////////////////////////////////////////////////////////////
//
// Private member variables
//
/////////////////////////////////////////////////////////////////////////////
/**
* Internal class member to index multiple log reader instances.
*
* @property _memberName
* @static
* @type Number
* @default 0
* @private
*/
YAHOO.widget.LogReader._index = 0;
/**
* Name of LogReader instance.
*
* @property _sName
* @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.
*
* @property _elDefaultContainer
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader._elDefaultContainer = null;
/**
* Buffer of log message objects for batch output.
*
* @property _buffer
* @type Object[]
* @private
*/
YAHOO.widget.LogReader.prototype._buffer = null;
/**
* Number of log messages output to console.
*
* @property _consoleMsgCount
* @type Number
* @default 0
* @private
*/
YAHOO.widget.LogReader.prototype._consoleMsgCount = 0;
/**
* Date of last output log message.
*
* @property _lastTime
* @type Date
* @private
*/
YAHOO.widget.LogReader.prototype._lastTime = null;
/**
* Batched output timeout ID.
*
* @property _timeout
* @type Number
* @private
*/
YAHOO.widget.LogReader.prototype._timeout = null;
/**
* Array of filters for log message categories.
*
* @property _categoryFilters
* @type String[]
* @private
*/
YAHOO.widget.LogReader.prototype._categoryFilters = null;
/**
* Array of filters for log message sources.
*
* @property _sourceFilters
* @type String[]
* @private
*/
YAHOO.widget.LogReader.prototype._sourceFilters = null;
/**
* Log reader container element.
*
* @property _elContainer
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._elContainer = null;
/**
* Log reader header element.
*
* @property _elHd
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._elHd = null;
/**
* Log reader collapse element.
*
* @property _elCollapse
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._elCollapse = null;
/**
* Log reader collapse button element.
*
* @property _btnCollapse
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._btnCollapse = null;
/**
* Log reader title header element.
*
* @property _title
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._title = null;
/**
* Log reader console element.
*
* @property _elConsole
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._elConsole = null;
/**
* Log reader footer element.
*
* @property _elFt
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._elFt = null;
/**
* Log reader buttons container element.
*
* @property _elBtns
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._elBtns = null;
/**
* Container element for log reader category filter checkboxes.
*
* @property _elCategoryFilters
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._elCategoryFilters = null;
/**
* Container element for log reader source filter checkboxes.
*
* @property _elSourceFilters
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._elSourceFilters = null;
/**
* Log reader pause button element.
*
* @property _btnPause
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._btnPause = null;
/**
* Clear button element.
*
* @property _btnClear
* @type HTMLElement
* @private
*/
YAHOO.widget.LogReader.prototype._btnClear = null;
/////////////////////////////////////////////////////////////////////////////
//
// Private methods
//
/////////////////////////////////////////////////////////////////////////////
/**
* Creates the UI for a category filter in the log reader footer element.
*
* @method _createCategoryCheckbox
* @param sCategory {String} Category name.
* @private
*/
YAHOO.widget.LogReader.prototype._createCategoryCheckbox = function(sCategory) {
var oSelf = this;
if(this._elFt) {
var elParent = this._elCategoryFilters;
var filters = this._categoryFilters;
var elFilter = elParent.appendChild(document.createElement("span"));
elFilter.className = "yui-log-filtergrp";
// Append el at the end so IE 5.5 can set "type" attribute
// and THEN set checked property
var chkCategory = document.createElement("input");
chkCategory.id = "yui-log-filter-" + sCategory + this._sName;
chkCategory.className = "yui-log-filter-" + sCategory;
chkCategory.type = "checkbox";
chkCategory.category = sCategory;
chkCategory = elFilter.appendChild(chkCategory);
chkCategory.checked = true;
// Add this checked filter to the internal array of filters
filters.push(sCategory);
// Subscribe to the click event
YAHOO.util.Event.addListener(chkCategory,'click',oSelf._onCheckCategory,oSelf);
// Create and class the text label
var lblCategory = elFilter.appendChild(document.createElement("label"));
lblCategory.htmlFor = chkCategory.id;
lblCategory.className = sCategory;
lblCategory.innerHTML = sCategory;
}
};
/**
* Creates a checkbox in the log reader footer element to filter by source.
*
* @method _createSourceCheckbox
* @param sSource {String} Source name.
* @private
*/
YAHOO.widget.LogReader.prototype._createSourceCheckbox = function(sSource) {
var oSelf = this;
if(this._elFt) {
var elParent = this._elSourceFilters;
var filters = this._sourceFilters;
var elFilter = elParent.appendChild(document.createElement("span"));
elFilter.className = "yui-log-filtergrp";
// Append el at the end so IE 5.5 can set "type" attribute
// and THEN set checked property
var chkSource = document.createElement("input");
chkSource.id = "yui-log-filter" + sSource + this._sName;
chkSource.className = "yui-log-filter" + sSource;
chkSource.type = "checkbox";
chkSource.source = sSource;
chkSource = elFilter.appendChild(chkSource);
chkSource.checked = true;
// Add this checked filter to the internal array of filters
filters.push(sSource);
// Subscribe to the click event
YAHOO.util.Event.addListener(chkSource,'click',oSelf._onCheckSource,oSelf);
// Create and class the text label
var lblSource = elFilter.appendChild(document.createElement("label"));
lblSource.htmlFor = chkSource.id;
lblSource.className = sSource;
lblSource.innerHTML = sSource;
}
};
/**
* Reprints all log messages in the stack through filters.
*
* @method _filterLogs
* @private
*/
YAHOO.widget.LogReader.prototype._filterLogs = function() {
// Reprint stack with new filters
if (this._elConsole !== 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.
*
* @method _clearConsole
* @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 elConsole = this._elConsole;
while(elConsole.hasChildNodes()) {
elConsole.removeChild(elConsole.firstChild);
}
};
/**
* Sends buffer of log messages to output and clears buffer.
*
* @method _printBuffer
* @private
*/
YAHOO.widget.LogReader.prototype._printBuffer = function() {
this._timeout = null;
if(this._elConsole !== 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._elConsole.scrollTop = this._elConsole.scrollHeight;
}
}
};
/**
* Cycles through an array of log messages, and outputs each one to the console
* if its category has not been filtered out.
*
* @method _printToConsole
* @param aEntries {Object[]} Array of LogMsg objects to output to console.
* @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
var sourceFiltersLen = this._sourceFilters.length;
var categoryFiltersLen = this._categoryFilters.length;
for(var i=entriesStartIndex; i<entriesLen; i++) {
// Print only the ones that filter through
var okToPrint = false;
var okToFilterCats = false;
// Get log message details
var entry = aEntries[i];
var source = entry.source;
var category = entry.category;
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) {
var output = this.formatMsg(entry);
// Verbose output uses <code> tag instead of <pre> tag (for wrapping)
var container = (this.verboseOutput) ? "CODE" : "PRE";
var oNewElement = (this.newestOnTop) ?
this._elConsole.insertBefore(
document.createElement(container),this._elConsole.firstChild):
this._elConsole.appendChild(document.createElement(container));
oNewElement.innerHTML = output;
this._consoleMsgCount++;
this._lastTime = entry.time.getTime();
}
}
};
/////////////////////////////////////////////////////////////////////////////
//
// Private event handlers
//
/////////////////////////////////////////////////////////////////////////////
/**
* Handles Logger's categoryCreateEvent.
*
* @method _onCategoryCreate
* @param sType {String} The event.
* @param aArgs {Object[]} Data passed from event firer.
* @param oSelf {Object} The LogReader instance.
* @private
*/
YAHOO.widget.LogReader.prototype._onCategoryCreate = function(sType, aArgs, oSelf) {
var category = aArgs[0];
if(oSelf._elFt) {
oSelf._createCategoryCheckbox(category);
}
};
/**
* Handles Logger's sourceCreateEvent.
*
* @method _onSourceCreate
* @param sType {String} The event.
* @param aArgs {Object[]} Data passed from event firer.
* @param oSelf {Object} The LogReader instance.
* @private
*/
YAHOO.widget.LogReader.prototype._onSourceCreate = function(sType, aArgs, oSelf) {
var source = aArgs[0];
if(oSelf._elFt) {
oSelf._createSourceCheckbox(source);
}
};
/**
* Handles check events on the category filter checkboxes.
*
* @method _onCheckCategory
* @param v {HTMLEvent} The click event.
* @param oSelf {Object} The LogReader 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.
*
* @method _onCheckSource
* @param v {HTMLEvent} The click event.
* @param oSelf {Object} 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.
*
* @method _onClickCollapseBtn
* @param v {HTMLEvent} The click event.
* @param oSelf {Object} The LogReader instance
* @private
*/
YAHOO.widget.LogReader.prototype._onClickCollapseBtn = function(v, oSelf) {
var btn = oSelf._btnCollapse;
if(btn.value == "Expand") {
oSelf._elConsole.style.display = "block";
if(oSelf._elFt) {
oSelf._elFt.style.display = "block";
}
btn.value = "Collapse";
}
else {
oSelf._elConsole.style.display = "none";
if(oSelf._elFt) {
oSelf._elFt.style.display = "none";
}
btn.value = "Expand";
}
};
/**
* Handles click events on the pause button.
*
* @method _onClickPauseBtn
* @param v {HTMLEvent} The click event.
* @param oSelf {Object} The LogReader instance.
* @private
*/
YAHOO.widget.LogReader.prototype._onClickPauseBtn = function(v, oSelf) {
var btn = oSelf._btnPause;
if(btn.value == "Resume") {
oSelf.resume();
btn.value = "Pause";
}
else {
oSelf.pause();
btn.value = "Resume";
}
};
/**
* Handles click events on the clear button.
*
* @method _onClickClearBtn
* @param v {HTMLEvent} The click event.
* @param oSelf {Object} The LogReader instance.
* @private
*/
YAHOO.widget.LogReader.prototype._onClickClearBtn = function(v, oSelf) {
oSelf._clearConsole();
};
/**
* Handles Logger's newLogEvent.
*
* @method _onNewLog
* @param sType {String} The event.
* @param aArgs {Object[]} Data passed from event firer.
* @param oSelf {Object} The LogReader instance.
* @private
*/
YAHOO.widget.LogReader.prototype._onNewLog = function(sType, aArgs, oSelf) {
var logEntry = aArgs[0];
oSelf._buffer.push(logEntry);
if (oSelf.logReaderEnabled === true && oSelf._timeout === null) {
oSelf._timeout = setTimeout(function(){oSelf._printBuffer();}, 100);
}
};
/**
* Handles Logger's resetEvent.
*
* @method _onReset
* @param sType {String} The event.
* @param aArgs {Object[]} Data passed from event firer.
* @param oSelf {Object} The LogReader instance.
* @private
*/
YAHOO.widget.LogReader.prototype._onReset = function(sType, aArgs, oSelf) {
oSelf._filterLogs();
};
/**
* The Logger widget provides a simple way to read or write log messages in
* JavaScript code. Integration with the YUI Library's debug builds allow
* implementers to access under-the-hood events, errors, and debugging messages.
* Output may be read through a LogReader console and/or output to a browser
* console.
*
* @module logger
* @requires yahoo, event, dom
* @optional dragdrop
* @namespace YAHOO.widget
* @title Logger Widget
*/
/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
/**
* The singleton Logger class provides core log management functionality. Saves
* logs written through the global YAHOO.log function or written by a LogWriter
* instance. Provides access to logs for reading by a LogReader instance or
* native browser console such as the Firebug extension to Firefox or Safari's
* JavaScript console through integration with the console.log() method.
*
* @class Logger
* @static
*/
YAHOO.widget.Logger = {
// Initialize members
loggerEnabled: true,
_browserConsoleEnabled: false,
categories: ["info","warn","error","time","window"],
sources: ["global"],
_stack: [], // holds all log msgs
maxStackEntries: 2500,
_startTime: new Date().getTime(), // static start timestamp
_lastTime: null // timestamp of last logged message
};
/////////////////////////////////////////////////////////////////////////////
//
// 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.
*
* @method log
* @param sMsg {String} The log message.
* @param sCategory {String} Category of log message, or null.
* @param sSource {String} 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) {
// Substring until first space
sClass = sSource.substring(0,spaceIndex);
// The rest of the source
sDetail = sSource.substring(spaceIndex,sSource.length);
}
else {
sClass = sSource;
}
if(this._isNewSource(sClass)) {
this._createNewSource(sClass);
}
}
var timestamp = new Date();
var logEntry = new YAHOO.widget.LogMsg({
msg: sMsg,
time: timestamp,
category: sCategory,
source: sClass,
sourceDetail: sDetail
});
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.
*
* @method reset
*/
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 message objects.
*
* @method getStack
* @return {Object[]} Array of log message objects.
*/
YAHOO.widget.Logger.getStack = function() {
return this._stack;
};
/**
* Public accessor to internal start time.
*
* @method getStartTime
* @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.
*
* @method disableBrowserConsole
*/
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.
*
* @method enableBrowserConsole
*/
YAHOO.widget.Logger.enableBrowserConsole = function() {
this._browserConsoleEnabled = true;
YAHOO.log("Logger output to the function console.log() has been enabled.");
};
/////////////////////////////////////////////////////////////////////////////
//
// Public events
//
/////////////////////////////////////////////////////////////////////////////
/**
* Fired when a new category has been created.
*
* @event categoryCreateEvent
* @param sCategory {String} Category name.
*/
YAHOO.widget.Logger.categoryCreateEvent =
new YAHOO.util.CustomEvent("categoryCreate", this, true);
/**
* Fired when a new source has been named.
*
* @event sourceCreateEvent
* @param sSource {String} Source name.
*/
YAHOO.widget.Logger.sourceCreateEvent =
new YAHOO.util.CustomEvent("sourceCreate", this, true);
/**
* Fired when a new log message has been created.
*
* @event newLogEvent
* @param sMsg {String} Log message.
*/
YAHOO.widget.Logger.newLogEvent = new YAHOO.util.CustomEvent("newLog", this, true);
/**
* Fired when the Logger has been reset has been created.
*
* @event logResetEvent
*/
YAHOO.widget.Logger.logResetEvent = new YAHOO.util.CustomEvent("logReset", this, true);
/////////////////////////////////////////////////////////////////////////////
//
// Private methods
//
/////////////////////////////////////////////////////////////////////////////
/**
* Creates a new category of log messages and fires categoryCreateEvent.
*
* @method _createNewCategory
* @param sCategory {String} Category name.
* @private
*/
YAHOO.widget.Logger._createNewCategory = function(sCategory) {
this.categories.push(sCategory);
this.categoryCreateEvent.fire(sCategory);
};
/**
* Checks to see if a category has already been created.
*
* @method _isNewCategory
* @param sCategory {String} Category name.
* @return {Boolean} Returns true if category is unknown, else returns false.
* @private
*/
YAHOO.widget.Logger._isNewCategory = function(sCategory) {
for(var i=0; i < this.categories.length; i++) {
if(sCategory == this.categories[i]) {
return false;
}
}
return true;
};
/**
* Creates a new source of log messages and fires sourceCreateEvent.
*
* @method _createNewSource
* @param sSource {String} Source name.
* @private
*/
YAHOO.widget.Logger._createNewSource = function(sSource) {
this.sources.push(sSource);
this.sourceCreateEvent.fire(sSource);
};
/**
* Checks to see if a source already exists.
*
* @method _isNewSource
* @param sSource {String} Source name.
* @return {Boolean} Returns true if source is unknown, else returns false.
* @private
*/
YAHOO.widget.Logger._isNewSource = function(sSource) {
if(sSource) {
for(var i=0; i < this.sources.length; i++) {
if(sSource == this.sources[i]) {
return false;
}
}
return true;
}
};
/**
* Outputs a log message to global console.log() function.
*
* @method _printToBrowserConsole
* @param oEntry {Object} Log entry object.
* @private
*/
YAHOO.widget.Logger._printToBrowserConsole = function(oEntry) {
if(window.console && console.log) {
var category = oEntry.category;
var label = oEntry.category.substring(0,4).toUpperCase();
var time = oEntry.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): " +
oEntry.source + ": " +
oEntry.msg;
console.log(output);
}
};
/////////////////////////////////////////////////////////////////////////////
//
// Private event handlers
//
/////////////////////////////////////////////////////////////////////////////
/**
* Handles logging of messages due to window error events.
*
* @method _onWindowError
* @param sMsg {String} The error message.
* @param sUrl {String} URL of the error.
* @param sLine {String} Line number of the error.
* @private
*/
YAHOO.widget.Logger._onWindowError = function(sMsg,sUrl,sLine) {
// Logger is not in scope of this event handler
try {
YAHOO.widget.Logger.log(sMsg+' ('+sUrl+', line '+sLine+')', "window");
if(YAHOO.widget.Logger._origOnWindowError) {
YAHOO.widget.Logger._origOnWindowError();
}
}
catch(e) {
return false;
}
};
/////////////////////////////////////////////////////////////////////////////
//
// Enable handling of 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");