mxLog

A singleton class that implements a simple console.

Summary

mxLog	A singleton class that implements a simple console.
Variables
consoleName	Specifies the name of the console window.
TRACE	Specified if the output for enter and leave should be visible in the console.
DEBUG	Specifies if the output for debug should be visible in the console.
WARN	Specifies if the output for warn should be visible in the console.
buffer	Buffer for pre-initialized content.
Functions
init	Initializes the DOM node for the console.
info	Writes the current navigator information to the console.
addButton	Adds a button to the console using the given label and function.
isVisible	Returns true if the console is visible.
show	Shows the console.
setVisible	Shows or hides the console.
enter	Writes the specified string to the console if TRACE is true and returns the current time in milliseconds.
leave	Writes the specified string to the console if TRACE is true and computes the difference between the current time and t0 in milliseconds.
debug	Adds all arguments to the console if DEBUG is enabled.
warn	Adds all arguments to the console if WARN is enabled.
write	Adds the specified strings to the console.
writeln	Adds the specified strings to the console, appending a linefeed at the end of each string.

Variables

consoleName

Specifies the name of the console window. Default is ‘Console’.

TRACE

Specified if the output for enter and leave should be visible in the console. Default is false.

DEBUG

Specifies if the output for debug should be visible in the console. Default is true.

WARN

Specifies if the output for warn should be visible in the console. Default is true.

buffer

Buffer for pre-initialized content.

Functions

init

init: function()

Initializes the DOM node for the console. This requires document.body to point to a non-null value. This is called from within setVisible if the log has not yet been initialized.

info

info: function()

Writes the current navigator information to the console.

addButton

addButton: function( lab,
funct )

Adds a button to the console using the given label and function.

isVisible

isVisible: function()

Returns true if the console is visible.

show

show: function()

Shows the console.

setVisible

setVisible: function( visible )

Shows or hides the console.

enter

enter: function( string )

Writes the specified string to the console if TRACE is true and returns the current time in milliseconds.

Example

mxLog.show();
var t0 = mxLog.enter('Hello');
// Do something
mxLog.leave('World!', t0);

leave

leave: function( string,
t0 )

Writes the specified string to the console if TRACE is true and computes the difference between the current time and t0 in milliseconds. See enter for an example.

debug

debug: function()

Adds all arguments to the console if DEBUG is enabled.

Example

mxLog.show();
mxLog.debug('Hello, World!');

warn

warn: function()

Adds all arguments to the console if WARN is enabled.

Example

mxLog.show();
mxLog.warn('Hello, World!');

write

write: function()

Adds the specified strings to the console.

writeln

writeln: function()

Adds the specified strings to the console, appending a linefeed at the end of each string.