5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<div class="intro">
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<p>This example shows a simple drag interaction that doesn't require a drop interaction.</p>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<div class="example">
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass {{>groups-drag-source}}
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<h3>Setting up the Work Area</h3>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<p>First we need to create the work area, players (drags) and slots (drops).</p>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass {{>groups-drag-source-html}}
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<p>Now we give them some CSS to make them visible.</p>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass {{>groups-drag-source-css}}
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<h4>Setting up the YUI Instance</h4>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<p>Now we need to create our YUI instance and tell it to load the `dd-drop`, `dd-proxy` and `dd-constrain` modules.</p>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav GlassYUI().use('dd-drop', 'dd-proxy', 'dd-constrain');
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<h4>Setting up the Drop Targets</h4>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<p>Now that we have a YUI instance with the requested modules, we are going to create our Drop Targets.</p>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav GlassYUI().use('dd-drop', 'dd-proxy', 'dd-constrain', function(Y) {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //Get all the nodes with the class of .slot under #workarea
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass var slots = Y.one('#workarea').all('.slot');
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //Loop through them
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass Y.each(slots, function(v, k) {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass var id = v.get('id'), groups = ['two'];
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //Assign them to different groups
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass switch (id) {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass groups = ['one'];
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //Create the Drop object
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass var drop = new Y.DD.Drop({
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //With the new groups array as a config option
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass groups: groups
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<h4>Setting up the Drag Nodes</h4>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<p>Now we need to create the Drag Nodes and assign them to the proper group.</p>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav GlassYUI().use('dd-drop', 'dd-proxy', 'dd-constrain', function(Y) {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass var players = Y.one('#workarea').all('.player');
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass Y.each(players, function(v, k) {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass var id = v.get('id'), groups = ['one', 'two'];
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass switch (id) {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass groups = ['one'];
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass groups = ['two'];
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass var drag = new Y.DD.Drag({
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //Assign the Groups
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass groups: groups,
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //Use Intersect Mode for the Target Calculations
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass dragMode: 'intersect',
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //We don't want the node to move on end drag
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass moveOnEnd: false
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //Keep me inside the workarea
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass constrain2node: '#workarea'
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<h4>Handling the Drops and Moments</h4>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<p>Now we are going to listen for the following Drag Events: `drag:start, drag:end, drag:drophit, drag:dropmiss`</p>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glassdrag.on('drag:start', function() {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //In this event we setup some styles to make the nodes look pretty
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass var p = this.get('dragNode'),
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass n.setStyle('opacity', .25);
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass if (!this._playerStart) {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass this._playerStart = this.nodeXY;
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //Put the Drag's HTML inside the proxy
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //set some styles on the proxy
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass backgroundColor: n.getStyle('backgroundColor'),
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass color: n.getStyle('color'),
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass opacity: .65
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glassdrag.on('drag:end', function() {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //Undo some of the styles from the start
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass var n = this.get('node');
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass n.setStyle('opacity', '1');
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glassdrag.on('drag:drophit', function(e) {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //If we drop on a target, move to its position
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass var xy = e.drop.get('node').getXY();
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass this.get('node').setXY(xy);
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glassdrag.on('drag:dropmiss', function(e) {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass //If we miss a target, move back to our start position
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass if (this._playerStart) {
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass this.get('node').setXY(this._playerStart);
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass this._playerStart = null;
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass<h4>Full Javascript Code</h4>
5b139d58acfcae4b1bcab5a895706abafc2a87a0Dav Glass {{>groups-drag-source-js}}