Subversion-Projekte lars-tiefland.cienc

/*! Buttons for DataTables 1.0.3

 * ©2015 SpryMedia Ltd - datatables.net/license

 */

(function(window, document, undefined) {

var factory = function( $, DataTable ) {

"use strict";

// Used for namespacing events added to the document by each instance, so they

// can be removed on destroy

var _instCounter = 0;

// Button namespacing counter for namespacing events on individual buttons

var _buttonCounter = 0;

var _dtButtons = DataTable.ext.buttons;

/**

 * [Buttons description]

 * @param {[type]}

 * @param {[type]}

 */

var Buttons = function( dt, config )

{

	// Allow a boolean true for defaults

	if ( config === true ) {

		config = {};

	}

	// For easy configuration of buttons an array can be given

	if ( $.isArray( config ) ) {

		config = { buttons: config };

	}

	this.c = $.extend( true, {}, Buttons.defaults, config );

	// Don't want a deep copy for the buttons

	if ( config.buttons ) {

		this.c.buttons = config.buttons;

	}

	this.s = {

		dt: new DataTable.Api( dt ),

		buttons: [],

		subButtons: [],

		listenKeys: '',

		namespace: 'dtb'+(_instCounter++)

	};

	this.dom = {

		container: $('<'+this.c.dom.container.tag+'/>')

			.addClass( this.c.dom.container.className )

	};

	this._constructor();

};

$.extend( Buttons.prototype, {

	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

	 * Public methods

	 */

	/**

	 * Get the action of a button

	 * @param  {int|string} Button index

	 * @return {function}

	 *//**

	 * Set the action of a button

	 * @param  {int|string} Button index

	 * @param  {function} Function to set

	 * @return {Buttons} Self for chaining

	 */

	action: function ( idx, action )

	{

		var button = this._indexToButton( idx ).conf;

		if ( action === undefined ) {

			return button.action;

		}

		button.action = action;

		return this;

	},

	/**

	 * Add an active class to the button to make to look active

	 * @param  {int|string} Button index

	 * @param  {boolean} [flag=true] Enable / disable flag

	 * @return {Buttons} Self for chaining

	 */

	active: function ( idx, flag ) {

		var button = this._indexToButton( idx );

		button.node.toggleClass(

			this.c.dom.button.active,

			flag === undefined ? true : flag

		);

		return this;

	},

	/**

	 * Add a new button

	 * @param {int|string} Button index for where to insert the button

	 * @param {object} Button configuration object, base string name or function

	 * @return {Buttons} Self for chaining

	 */

	add: function ( idx, config )

	{

		if ( typeof idx === 'string' && idx.indexOf('-') !== -1 ) {

			var idxs = idx.split('-');

			this.c.buttons[idxs[0]*1].buttons.splice( idxs[1]*1, 0, config );

		}

		else {

			this.c.buttons.splice( idx*1, 0, config );

		}

		this.dom.container.empty();

		this._buildButtons( this.c.buttons );

		return this;

	},

	/**

	 * Get the container node for the buttons

	 * @return {jQuery} Buttons node

	 */

	container: function ()

	{

		return this.dom.container;

	},

	/**

	 * Disable a button

	 * @param  {int|string} Button index

	 * @return {Buttons} Self for chaining

	 */

	disable: function ( idx ) {

		var button = this._indexToButton( idx );

		button.node.addClass( this.c.dom.button.disabled );

		return this;

	},

	/**

	 * Destroy the instance, cleaning up event handlers and removing DOM

	 * elements

	 * @return {Buttons} Self for chaining

	 */

	destroy: function ()

	{

		// Key event listener

		$('body').off( 'keyup.'+this.s.namespace );

		// Individual button destroy (so they can remove their own events if

		// needed

		var buttons = this.s.buttons;

		var subButtons = this.s.subButtons;

		var i, ien, j, jen;

		for ( i=0, ien=buttons.length ; i<ien ; i++ ) {

			this.removePrep( i );

			for ( j=0, jen=subButtons[i].length ; j<jen ; j++ ) {

				this.removePrep( i+'-'+j );

			}

		}

		this.removeCommit();

		// Container

		this.dom.container.remove();

		// Remove from the settings object collection

		var buttonInsts = this.s.dt.settings()[0];

		for ( i=0, ien=buttonInsts.length ; i<ien ; i++ ) {

			if ( buttonInsts.inst === this ) {

				buttonInsts.splice( i, 1 );

				break;

			}

		}

		return this;

	},

	/**

	 * Enable / disable a button

	 * @param  {int|string} Button index

	 * @param  {boolean} [flag=true] Enable / disable flag

	 * @return {Buttons} Self for chaining

	 */

	enable: function ( idx, flag )

	{

		if ( flag === false ) {

			return this.disable( idx );

		}

		var button = this._indexToButton( idx );

		button.node.removeClass( this.c.dom.button.disabled );

		return this;

	},

	/**

	 * Get the instance name for the button set selector

	 * @return {string} Instance name

	 */

	name: function ()

	{

		return this.c.name;

	},

	/**

	 * Get a button's node

	 * @param  {int|string} Button index

	 * @return {jQuery} Button element

	 */

	node: function ( idx )

	{

		var button = this._indexToButton( idx );

		return button.node;

	},

	/**

	 * Tidy up any buttons that have been scheduled for removal. This is

	 * required so multiple buttons can be removed without upsetting the button

	 * indexes while removing them.

	 * @param  {int|string} Button index

	 * @return {Buttons} Self for chaining

	 */

	removeCommit: function ()

	{

		var buttons = this.s.buttons;

		var subButtons = this.s.subButtons;

		var i, ien, j;

		for ( i=buttons.length-1 ; i>=0 ; i-- ) {

			if ( buttons[i] === null ) {

				buttons.splice( i, 1 );

				subButtons.splice( i, 1 );

				this.c.buttons.splice( i, 1 );

			}

		}

		for ( i=0, ien=subButtons.length ; i<ien ; i++ ) {

			for ( j=subButtons[i].length-1 ; j>=0 ; j-- ) {

				if ( subButtons[i][j] === null ) {

					subButtons[i].splice( j, 1 );

					this.c.buttons[i].buttons.splice( j, 1 );

				}

			}

		}

		return this;

	},

	/**

	 * Scheduled a button for removal. This is required so multiple buttons can

	 * be removed without upsetting the button indexes while removing them.

	 * @return {Buttons} Self for chaining

	 */

	removePrep: function ( idx )

	{

		var button;

		var dt = this.s.dt;

		if ( typeof idx === 'number' || idx.indexOf('-') === -1 ) {

			// Top level button

			button = this.s.buttons[ idx*1 ];

			if ( button.conf.destroy ) {

				button.conf.destroy.call( dt.button(idx), dt, button, button.conf );

			}

			button.node.remove();

			this._removeKey( button.conf );

			this.s.buttons[ idx*1 ] = null;

		}

		else {

			// Collection button

			var idxs = idx.split('-');

			button = this.s.subButtons[ idxs[0]*1 ][ idxs[1]*1 ];

			if ( button.conf.destroy ) {

				button.conf.destroy.call( dt.button(idx), dt, button, button.conf );

			}

			button.node.remove();

			this._removeKey( button.conf );

			this.s.subButtons[ idxs[0]*1 ][ idxs[1]*1 ] = null;

		}

		return this;

	},

	/**

	 * Get the text for a button

	 * @param  {int|string} Button index

	 * @return {string} Button text

	 *//**

	 * Set the text for a button

	 * @param  {int|string|function} Button index

	 * @param  {string} Text

	 * @return {Buttons} Self for chaining

	 */

	text: function ( idx, label )

	{

		var button = this._indexToButton( idx );

		var linerTag = this.c.dom.buttonLiner.tag;

		var dt = this.s.dt;

		var text = function ( opt ) {

			return typeof opt === 'function' ?

				opt( dt, button.node, button.conf ) :

				opt;

		};

		if ( label === undefined ) {

			return text( button.conf.text );

		}

		button.conf.text = label;

		if ( linerTag ) {

			button.node.children( linerTag ).html( text(label) );

		}

		else {

			button.node.html( text(label) );

		}

		return this;

	},

	/**

	 * Calculate button index from a node

	 * @param  {node} Button node (_not_ a jQuery object)

	 * @return {string} Index. Undefined if not found

	 */

	toIndex: function ( node )

	{

		var i, ien, j, jen;

		var buttons = this.s.buttons;

		var subButtons = this.s.subButtons;

		// Loop the main buttons first

		for ( i=0, ien=buttons.length ; i<ien ; i++ ) {

			if ( buttons[i].node[0] === node ) {

				return i+'';

			}

		}

		// Then the sub-buttons

		for ( i=0, ien=subButtons.length ; i<ien ; i++ ) {

			for ( j=0, jen=subButtons[i].length ; j<jen ; j++ ) {

				if ( subButtons[i][j].node[0] === node ) {

					return i+'-'+j;

				}

			}

		}

	},

	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

	 * Constructor

	 */

	/**

	 * Buttons constructor

	 * @private

	 */

	_constructor: function ()

	{

		var that = this;

		var dt = this.s.dt;

		var dtSettings = dt.settings()[0];

		if ( ! dtSettings._buttons ) {

			dtSettings._buttons = [];

		}

		dtSettings._buttons.push( {

			inst: this,

			name: this.c.name

		} );

		this._buildButtons( this.c.buttons );

		dt.on( 'destroy', function () {

			that.destroy();

		} );

		// Global key event binding to listen for button keys

		$('body').on( 'keyup.'+this.s.namespace, function ( e ) {

			if ( ! document.activeElement || document.activeElement === document.body ) {

				// SUse a string of characters for fast lookup of if we need to

				// handle this

				var character = String.fromCharCode(e.keyCode).toLowerCase();

				if ( that.s.listenKeys.toLowerCase().indexOf( character ) !== -1 ) {

					that._keypress( character, e );

				}

			}

		} );

	},

	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

	 * Private methods

	 */

	/**

	 * Add a new button to the key press listener

	 * @param {object} Resolved button configuration object

	 * @private

	 */

	_addKey: function ( conf )

	{

		if ( conf.key ) {

			this.s.listenKeys += $.isPlainObject( conf.key ) ?

				conf.key.key :

				conf.key;

		}

	},

	/**

	 * Create buttons from an array of buttons

	 * @param  {array} Buttons to create

	 * @param  {jQuery} Container node into which the created button should be

	 *   inserted.

	 * @param  {int} Counter for sub-buttons to be stored in a collection

	 * @private

	 */

	_buildButtons: function ( buttons, container, collectionCounter )

	{

		var dt = this.s.dt;

		if ( ! container ) {

			container = this.dom.container;

			this.s.buttons = [];

			this.s.subButtons = [];

		}

		for ( var i=0, ien=buttons.length ; i<ien ; i++ ) {

			var conf = this._resolveExtends( buttons[i] );

			if ( ! conf ) {

				continue;

			}

			// If the configuration is an array, then expand the buttons at this

			// point

			if ( $.isArray( conf ) ) {

				this._buildButtons( conf, container, collectionCounter );

				continue;

			}

			var button = this._buildButton(

				conf,

				collectionCounter!==undefined ? true : false

			);

			if ( ! button ) {

				continue;

			}

			var buttonNode = button.node;

			container.append( button.inserter );

			if ( collectionCounter === undefined ) {

				this.s.buttons.push( {

					node:     buttonNode,

					conf:     conf,

					inserter: button.inserter

				} );

				this.s.subButtons.push( [] );

			}

			else {

				this.s.subButtons[ collectionCounter ].push( {

					node:     buttonNode,

					conf:     conf,

					inserter: button.inserter

				} );

			}

			if ( conf.buttons ) {

				var collectionDom = this.c.dom.collection;

				conf._collection = $('<'+collectionDom.tag+'/>')

					.addClass( collectionDom.className );

				this._buildButtons( conf.buttons, conf._collection, i );

			}

			// init call is made here, rather than buildButton as it needs to

			// have been added to the buttons / subButtons array first

			if ( conf.init ) {

				conf.init.call( dt.button( buttonNode ), dt, buttonNode, conf );

			}

		}

	},

	/**

	 * Create an individual button

	 * @param  {object} config            Resolved button configuration

	 * @param  {boolean} collectionButton `true` if a collection button

	 * @return {jQuery} Created button node (jQuery)

	 * @private

	 */

	_buildButton: function ( config, collectionButton )

	{

		var that = this;

		var buttonDom = this.c.dom.button;

		var linerDom = this.c.dom.buttonLiner;

		var collectionDom = this.c.dom.collection;

		var dt = this.s.dt;

		var text = function ( opt ) {

			return typeof opt === 'function' ?

				opt( dt, button, config ) :

				opt;

		};

		if ( collectionButton && collectionDom.button ) {

			buttonDom = collectionDom.button;

		}

		if ( collectionButton && collectionDom.buttonLiner ) {

			linerDom = collectionDom.buttonLiner;

		}

		// Make sure that the button is available based on whatever requirements

		// it has. For example, Flash buttons require Flash

		if ( config.available && ! config.available( dt, config ) ) {

			return false;

		}

		var button = $('<'+buttonDom.tag+'/>')

			.addClass( buttonDom.className )

			.attr( 'tabindex', this.s.dt.settings()[0].iTabIndex )

			.attr( 'aria-controls', this.s.dt.table().node().id )

			.on( 'click.dtb', function (e) {

				e.preventDefault();

				if ( ! button.hasClass( buttonDom.disabled ) && config.action ) {

					config.action.call( dt.button( button ), e, dt, button, config );

				}

				button.blur();

			} )

			.on( 'keyup.dtb', function (e) {

				if ( e.keyCode === 13 ) {

					if ( ! button.hasClass( buttonDom.disabled ) && config.action ) {

						config.action.call( dt.button( button ), e, dt, button, config );

					}

				}

			} );

		if ( linerDom.tag ) {

			button.append(

				$('<'+linerDom.tag+'/>')

					.html( text( config.text ) )

					.addClass( linerDom.className )

			);

		}

		else {

			button.html( text( config.text ) );

		}

		if ( config.enabled === false ) {

			button.addClass( buttonDom.disabled );

		}

		if ( config.className ) {

			button.addClass( config.className );

		}

		if ( ! config.namespace ) {

			config.namespace = '.dt-button-'+(_buttonCounter++);

		}

		var buttonContainer = this.c.dom.buttonContainer;

		var inserter;

		if ( buttonContainer ) {

			inserter = $('<'+buttonContainer.tag+'/>')

				.addClass( buttonContainer.className )

				.append( button );

		}

		else {

			inserter = button;

		}

		this._addKey( config );

		return {

			node: button,

			inserter: inserter

		};

	},

	/**

	 * Get a button's host information from a button index

	 * @param  {int|string} Button index

	 * @return {object} Button information - object contains `node` and `conf`

	 *   properties

	 * @private

	 */

	_indexToButton: function ( idx )

	{

		if ( typeof idx === 'number' || idx.indexOf('-') === -1 ) {

			return this.s.buttons[ idx*1 ];

		}

		var idxs = idx.split('-');

		return this.s.subButtons[ idxs[0]*1 ][ idxs[1]*1 ];

	},

	/**

	 * Handle a key press - determine if any button's key configured matches

	 * what was typed and trigger the action if so.

	 * @param  {string} The character pressed

	 * @param  {object} Key event that triggered this call

	 * @private

	 */

	_keypress: function ( character, e )

	{

		var i, ien, j, jen;

		var buttons = this.s.buttons;

		var subButtons = this.s.subButtons;

		var run = function ( conf, node ) {

			if ( ! conf.key ) {

				return;

			}

			if ( conf.key === character ) {

				node.click();

			}

			else if ( $.isPlainObject( conf.key ) ) {

				if ( conf.key.key !== character ) {

					return;

				}

				if ( conf.key.shiftKey && ! e.shiftKey ) {

					return;

				}

				if ( conf.key.altKey && ! e.altKey ) {

					return;

				}

				if ( conf.key.ctrlKey && ! e.ctrlKey ) {

					return;

				}

				if ( conf.key.metaKey && ! e.metaKey ) {

					return;

				}

				// Made it this far - it is good

				node.click();

			}

		};

		// Loop the main buttons first

		for ( i=0, ien=buttons.length ; i<ien ; i++ ) {

			run( buttons[i].conf, buttons[i].node );

		}

		// Then the sub-buttons

		for ( i=0, ien=subButtons.length ; i<ien ; i++ ) {

			for ( j=0, jen=subButtons[i].length ; j<jen ; j++ ) {

				run( subButtons[i][j].conf, subButtons[i][j].node );

			}

		}

	},

	/**

	 * Remove a key from the key listener for this instance (to be used when a

	 * button is removed)

	 * @param  {object} Button configuration

	 */

	_removeKey: function ( conf )

	{

		if ( conf.key ) {

			var character = $.isPlainObject( conf.key ) ?

				conf.key.key :

				conf.key;

			// Remove only one character, as multiple buttons could have the

			// same listening key

			var a = this.s.listenKeys.split('');

			var idx = $.inArray( character, a );

			a.splice( idx, 1 );

			this.s.listenKeys = a.join('');

		}

	},

	/**

	 * Resolve a button configuration

	 * @param  {string|function|object} Button config to resolve

	 * @return {object} Button configuration

	 */

	_resolveExtends: function ( conf )

	{

		var dt = this.s.dt;

		var i, ien;

		var toConfObject = function ( base ) {

			var loop = 0;

			// Loop until we have resolved to a button configuration, or an

			// array of button configurations (which will be iterated

			// separately)

			while ( ! $.isPlainObject(base) && ! $.isArray(base) ) {

				if ( typeof base === 'function' ) {

					base = base( dt, conf );

					if ( ! base ) {

						return false;

					}

				}

				else if ( typeof base === 'string' ) {

					if ( ! _dtButtons[ base ] ) {

						throw 'Unknown button type: '+base;

					}

					base = _dtButtons[ base ];

				}

				loop++;

				if ( loop > 30 ) {

					// Protect against misconfiguration killing the browser

					throw 'Buttons: Too many iterations';

				}

			}

			return $.isArray( base ) ?

				base :

				$.extend( {}, base );

		};

		conf = toConfObject( conf );

		while ( conf && conf.extend ) {

			// Use `toConfObject` in case the button definition being extended

			// is itself a string or a function

			var objArray = toConfObject( _dtButtons[ conf.extend ] );

			if ( $.isArray( objArray ) ) {

				return objArray;

			}

			// Stash the current class name

			var originalClassName = objArray.className;

			conf = $.extend( {}, objArray, conf );

			// The extend will have overwritten the original class name if the

			// `conf` object also assigned a class, but we want to concatenate

			// them so they are list that is combined from all extended buttons

			if ( originalClassName && conf.className !== originalClassName ) {

				conf.className = originalClassName+' '+conf.className;

			}

			// Buttons to be added to a collection  -gives the ability to define

			// if buttons should be added to the start or end of a collection

			var postfixButtons = conf.postfixButtons;

			if ( postfixButtons ) {

				if ( ! conf.buttons ) {

					conf.buttons = [];

				}

				for ( i=0, ien=postfixButtons.length ; i<ien ; i++ ) {

					conf.buttons.push( postfixButtons[i] );

				}

				conf.postfixButtons = null;

			}

			var prefixButtons = conf.prefixButtons;

			if ( prefixButtons ) {

				if ( ! conf.buttons ) {

					conf.buttons = [];

				}

				for ( i=0, ien=prefixButtons.length ; i<ien ; i++ ) {

					conf.buttons.splice( i, 0, prefixButtons[i] );

				}

				conf.prefixButtons = null;

			}

			// Although we want the `conf` object to overwrite almost all of

			// the properties of the object being extended, the `extend`

			// property should come from the object being extended

			conf.extend = objArray.extend;

		}

		return conf;

	}

} );

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

 * Statics

 */

/**

 * Show / hide a background layer behind a collection

 * @param  {boolean} Flag to indicate if the background should be shown or

 *   hidden

 * @param  {string} Class to assign to the background

 * @static

 */

Buttons.background = function ( show, className, fade ) {

	if ( fade === undefined ) {

		fade = 400;

	}

	if ( show ) {

		$('<div/>')

			.addClass( className )

			.css( 'display', 'none' )

			.appendTo( 'body' )

			.fadeIn( fade );

	}

	else {

		$('body > div.'+className)

			.fadeOut( fade, function () {

				$(this).remove();

			} );

	}

};

/**

 * Instance selector - select Buttons instances based on an instance selector

 * value from the buttons assigned to a DataTable. This is only useful if

 * multiple instances are attached to a DataTable.

 * @param  {string|int|array} Instance selector - see `instance-selector`

 *   documentation on the DataTables site

 * @param  {array} Button instance array that was attached to the DataTables

 *   settings object

 * @return {array} Buttons instances

 * @static

 */

Buttons.instanceSelector = function ( group, buttons )

{

	if ( ! group ) {

		return $.map( buttons, function ( v ) {

			return v.inst;

		} );

	}

	var ret = [];

	var names = $.map( buttons, function ( v ) {

		return v.name;

	} );

	// Flatten the group selector into an array of single options

	var process = function ( input ) {

		if ( $.isArray( input ) ) {

			for ( var i=0, ien=input.length ; i<ien ; i++ ) {

				process( input[i] );

			}

			return;

		}

		if ( typeof input === 'string' ) {

			if ( input.indexOf( ',' ) !== -1 ) {

				// String selector, list of names

				process( input.split(',') );

			}

			else {

				// String selector individual name

				var idx = $.inArray( $.trim(input), names );

				if ( idx !== -1 ) {

					ret.push( buttons[ idx ].inst );

				}

			}

		}

		else if ( typeof input === 'number' ) {

			// Index selector

			ret.push( buttons[ input ].inst );

		}

	};

	process( group );

	return ret;

};

/**

 * Button selector - select one or more buttons from a selector input so some

 * operation can be performed on them.

 * @param  {array} Button instances array that the selector should operate on

 * @param  {string|int|node|jQuery|array} Button selector - see

 *   `button-selector` documentation on the DataTables site

 * @return {array} Array of objects containing `inst` and `idx` properties of

 *   the selected buttons so you know which instance each button belongs to.

 * @static

 */

Buttons.buttonSelector = function ( insts, selector )

{

	var ret = [];

	var run = function ( selector, inst ) {

		var i, ien, j, jen;

		var buttons = [];

		$.each( inst.s.buttons, function (i, v) {

			if ( v !== null ) {

				buttons.push( {

					node: v.node[0],

					name: v.name

				} );

			}

		} );

		$.each( inst.s.subButtons, function (i, v) {

			$.each( v, function (j, w) {

				if ( w !== null ) {

					buttons.push( {

						node: w.node[0],

						name: w.name

					} );

				}

			} );

		} );

		var nodes = $.map( buttons, function (v) {

			return v.node;

		} );

		if ( $.isArray( selector ) || selector instanceof $ ) {

			for ( i=0, ien=selector.length ; i<ien ; i++ ) {

				run( selector[i], inst );

			}

			return;

		}

		if ( selector === null || selector === undefined || selector === '*' ) {

			// Select all

			for ( i=0, ien=buttons.length ; i<ien ; i++ ) {

				ret.push( {

					inst: inst,

					idx: inst.toIndex( buttons[i].node )

				} );

			}

		}

		else if ( typeof selector === 'number' ) {

			// Main button index selector

			ret.push( {

				inst: inst,

				idx: selector

			} );

		}

		else if ( typeof selector === 'string' ) {

			if ( selector.indexOf( ',' ) !== -1 ) {

				// Split

				var a = selector.split(',');

				for ( i=0, ien=a.length ; i<ien ; i++ ) {

					run( $.trim(a[i]), inst );

				}

			}

			else if ( selector.match( /^\d+(\-\d+)?$/ ) ) {

				// Sub-button index selector

				ret.push( {

					inst: inst,

					idx: selector

				} );

			}

			else if ( selector.indexOf( ':name' ) !== -1 ) {

				// Button name selector

				var name = selector.replace( ':name', '' );

				for ( i=0, ien=buttons.length ; i<ien ; i++ ) {

					if ( buttons[i].name === name ) {

						ret.push( {

							inst: inst,

							idx: inst.toIndex( buttons[i].node )

						} );

					}

				}

			}

			else {

				// jQuery selector on the nodes

				$( nodes ).filter( selector ).each( function () {

					ret.push( {

						inst: inst,

						idx: inst.toIndex( this )

					} );

				} );

			}

		}

		else if ( typeof selector === 'object' && selector.nodeName ) {

			// Node selector

			var idx = $.inArray( selector, nodes );

			if ( idx !== -1 ) {

				ret.push( {

					inst: inst,

					idx: inst.toIndex( nodes[ idx ] )

				} );

			}

		}