/*
 * jQuery UI Pattern @VERSION
 *
 * Copyright 2011, Arjen Post (http://arjenpost.nl)
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://arjenpost.nl/license
 *
 * http://arjenpost.nl/#pattern
 */

--- Table of contents -----------------------------------------------

1	Overview
1.1	Dependencies
1.2	Default usage
1.3	To-do list

2	Options
2.1	arrowCorrectImage
2.2	arrowIncorrectImage
2.3	clearDelay
2.4	disabled
2.5	gridSize
2.6	lineColor
2.7	lineOpacity
2.8	lineWidth
2.9	multiSelect

3	Events
3.1	create
3.2	start
3.3	change
3.4	stop

4	Methods
4.1	clearPattern
4.2	destroy
4.3	disable
4.4	enable
4.5	option
4.6	option
4.7	pattern
4.8	widget

--- 1 Overview ------------------------------------------------------

Pattern is a Android-style unlock plugin build with jQuery and jQuery 
UI, using the jQuery UI widget factory.

--- 1.1 Dependencies ------------------------------------------------

jQuery UI Pattern uses jQuery and jQuery UI:

	- jquery.ui.core.js
	- jquery.ui.widget.js
	- jquery.ui.mouse.js

--- 1.2 Default usage -----------------------------------------------

$('.selector').pattern(
{
	arrowCorrectImage: 'img/arrow-correct.png', 
	arrowIncorrectImage: 'img/arrow-incorrect.png',
	stop: function(event, ui) {
		var correct = ...;//Check pattern logic (ui.pattern)...
	
		$('.selector').pattern('clearPattern', correct);
	}
});

--- 1.3 To-do list --------------------------------------------------

	- Make pattern compatible with touch devices

--- 2 Options -------------------------------------------------------

--- 2.1 arrowCorrectImage -------------------------------------------

Name: arrowCorrectImage
Type: String
Default: ''

Description:
Get or set the path to the arrow image which is used for a correct 
pattern.

Code examples:
Initialize a pattern with the arrowCorrectImage option specified.
$( ".selector" ).pattern({ arrowCorrectImage: 
'img/arrow-correct.png' });
Get or set the arrowCorrectImage option, after init.
//getter
var arrowCorrectImage = $( ".selector" ).pattern( "option", 
"arrowCorrectImage" );
//setter
$( ".selector" ).pattern( "option", "arrowCorrectImage", 
'img/arrow-correct.png' );

--- 2.2 arrowIncorrectImage -----------------------------------------

Name: arrowIncorrectImage
Type: String
Default: ''

Description:
Get or set the path to the arrow image which is used for an incorrect 
pattern.

Code examples:
Initialize a pattern with the arrowIncorrectImage option specified.
$( ".selector" ).pattern({ arrowIncorrectImage: 
'img/arrow-incorrect.png' });
Get or set the arrowIncorrectImage option, after init.
//getter
var arrowIncorrectImage = $( ".selector" ).pattern( "option", 
"arrowIncorrectImage" );
//setter
$( ".selector" ).pattern( "option", "arrowIncorrectImage", 
'img/arrow-incorrect.png' );

--- 2.3 clearDelay --------------------------------------------------

Name: clearDelay
Type: Number
Default: 2000

Description:
Get or set the delay used after clearPattern is called to unselect 
the current pattern.

Code examples:
Initialize a pattern with the clearDelay option specified.
$( ".selector" ).pattern({ clearDelay: 2000 });
Get or set the clearDelay option, after init.
//getter
var clearDelay = $( ".selector" ).pattern( "option", "clearDelay" );
//setter
$( ".selector" ).pattern( "option", "clearDelay", 2000 );

--- 2.4 disabled ----------------------------------------------------

Name: disabled
Type: Boolean
Default: false

Description:
Disables (true) or enables (false) the pattern. Can be set when 
initialising (first creating) the pattern.

Code examples:
Initialize a pattern with the disabled option specified.
$( ".selector" ).pattern({ disabled: true });
Get or set the disabled option, after init.
//getter
var disabled = $( ".selector" ).pattern( "option", "disabled" );
//setter
$( ".selector" ).pattern( "option", "disabled", true );

--- 2.5 gridSize ----------------------------------------------------

Name: gridSize
Type: Number
Default: 3

Description:
Get or set the size of the pattern grid, eg: 3 = 3x3 4 = 4x4...

Code examples:
Initialize a pattern with the gridSize option specified.
$( ".selector" ).pattern({ gridSize: 3 });
Get or set the gridSize option, after init.
//getter
var gridSize = $( ".selector" ).pattern( "option", "gridSize" );
//setter
$( ".selector" ).pattern( "option", "gridSize", 3 );

--- 2.6 lineColor ---------------------------------------------------

Name: lineColor
Type: String
Default: '#fff'

Description:
Get or set the color of the line which is drawn between the connected 
nodes.

Code examples:
Initialize a pattern with the lineColor option specified.
$( ".selector" ).pattern({ lineColor: '#fff' });
Get or set the lineColor option, after init.
//getter
var lineColor = $( ".selector" ).pattern( "option", "lineColor" );
//setter
$( ".selector" ).pattern( "option", "lineColor", '#fff' );

--- 2.7 lineOpacity -------------------------------------------------

Name: lineOpacity
Type: Number
Default: 0.3

Description:
Get or set the opacity of the line which is drawn between the 
connected nodes.

Code examples:
Initialize a pattern with the lineOpacity option specified.
$( ".selector" ).pattern({ lineOpacity: 0.3 });
Get or set the lineOpacity option, after init.
//getter
var lineOpacity = $( ".selector" ).pattern( "option", 
"lineOpacity" );
//setter
$( ".selector" ).pattern( "option", "lineOpacity", 0.3 );

--- 2.8 lineWidth ---------------------------------------------------

Name: lineWidth
Type: Number
Default: 45

Description:
Get or set the width of the line which is drawn between the connected 
nodes.

Code examples:
Initialize a pattern with the lineWidth option specified.
$( ".selector" ).pattern({ lineWidth: 45 });
Get or set the lineWidth option, after init.
//getter
var lineWidth = $( ".selector" ).pattern( "option", "lineWidth" );
//setter
$( ".selector" ).pattern( "option", "lineWidth", 45 );

--- 2.9 multiSelect -------------------------------------------------

Name: multiSelect
Type: Boolean
Default: false

Description:
If true, allows nodes to be selected multiple times.

Code examples:
Initialize a pattern with the multiSelect option specified.
$( ".selector" ).pattern({ multiSelect: true });
Get or set the multiSelect option, after init.
//getter
var multiSelect = $( ".selector" ).pattern( "option", "multiSelect" );
//setter
$( ".selector" ).pattern( "option", "multiSelect", true );

--- 3 Events --------------------------------------------------------

--- 3.1 create ------------------------------------------------------

Name: create
Type: patterncreate

Description:
This event is triggered when pattern is created.

Code examples:
Supply a callback function to handle the create event as an init 
option.
$( ".selector" ).pattern({
   create: function(event, ui) { ... }
});
Bind to the create event by type: patterncreate.
$( ".selector" ).bind( "patterncreate", function(event, ui) {
  ...
});

--- 3.2 start -------------------------------------------------------

Name: start
Type: patternstart

Description:
This event is triggered when the user starts selecting a pattern.

Code examples

Supply a callback function to handle the start event as an init 
option.
$( ".selector" ).pattern({
   start: function(event, ui) { ... }
});
Bind to the start event by type: patternstart.
$( ".selector" ).bind( "patternstart", function(event, ui) {
  ...
});

--- 3.4 change ------------------------------------------------------

Name: change
Type: patternchange

Description:
This event is triggered on when a node is selected. Use ui.pattern 
to obtain the current pattern.

Code examples:
Supply a callback function to handle the change event as an init 
option.
$( ".selector" ).pattern({
   change: function(event, ui) { ... }
});
Bind to the change event by type: patternchange.
$( ".selector" ).bind( "patternchange", function(event, ui) {
  ...
});

--- 3.4 stop --------------------------------------------------------

Name: stop
Type: patternstop

Description:
This event is triggered when the user stops pattern selection. Use 
ui.pattern to obtain the current pattern.

Code examples:
Supply a callback function to handle the stop event as an init 
option.
$( ".selector" ).pattern({
   stop: function(event, ui) { ... }
});
Bind to the stop event by type: patternstop.
$( ".selector" ).bind( "patternstop", function(event, ui) {
  ...
});

--- 4 Methods -------------------------------------------------------

--- 4.1 clearPattern ------------------------------------------------

clearPattern
.pattern( "clearPattern" )
Clears the current pattern after the specified delay (see 
clearDelay).

--- 4.2 destroy -----------------------------------------------------

destroy
.pattern( "destroy" )
Remove the pattern functionality completely. This will return the 
element back to its pre-init state.

--- 4.3 disable -----------------------------------------------------

disable
.pattern( "disable" )
Disable the pattern.

--- 4.4 enable ------------------------------------------------------

enable
.pattern( "enable" )
Enable the pattern.

--- 4.5 option ------------------------------------------------------

option
.pattern( "option" , optionName , [value] )
Get or set any pattern option. If no value is specified, will act as 
a getter.

--- 4.6 option ------------------------------------------------------

option
.pattern( "option" , options )
Set multiple pattern options at once by providing an options object.

--- 4.7 pattern -----------------------------------------------------

pattern
.pattern( "pattern" )
Get the currently selected pattern.

--- 4.8 widget ------------------------------------------------------

widget
.pattern( "widget" )
Returns the .ui-pattern element.