Created
February 8, 2012 14:25
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How to use YUI to enable reordering of elements using drag & drop
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="http://yui.yahooapis.com/3.4.1/build/yui/yui-min.js"></script> | |
| <style> | |
| .wrapper { | |
| position: relative; | |
| width: 300px; | |
| border: 1px solid #555; | |
| } | |
| .block { | |
| height: 100px; | |
| margin: 10px; | |
| } | |
| .red { | |
| background-color: red; | |
| } | |
| .yellow { | |
| background-color: yellow; | |
| } | |
| .green { | |
| background-color: green; | |
| } | |
| </style> | |
| </head> | |
| </head> | |
| <body> | |
| <div class="wrapper"> | |
| <div class="block red"></div> | |
| <div class="block yellow"></div> | |
| <div class="block green"></div> | |
| </div> | |
| <script> | |
| YUI().use('node', 'dd-constrain', 'dd-proxy', 'dd-drop', function(Y) { | |
| var wrapper = Y.one('.wrapper'); | |
| var draggingUp = false; | |
| var lastY = 0; | |
| Y.all('.block').each(function(block) { | |
| var dd = new Y.DD.Drag({ | |
| node: block, | |
| target: true // Make it a drop target, too | |
| }).plug(Y.Plugin.DDConstrained, { | |
| constrain2node: wrapper | |
| }).plug(Y.Plugin.DDProxy, { | |
| moveOnEnd: false, | |
| cloneNode: true | |
| }); | |
| dd.on('drag:start', function(e) { | |
| var drag = e.target; | |
| drag.get('node').setStyle('opacity', '.25'); | |
| drag.get('dragNode').setStyle('opacity', '.7'); | |
| }); | |
| dd.on('drag:drag', function(e) { | |
| var y = e.target.lastXY[1]; | |
| draggingUp = (y < lastY); | |
| lastY = y; | |
| }); | |
| dd.on('drag:end', function(e) { | |
| var drag = e.target; | |
| drag.get('node').setStyle('opacity', '1'); | |
| }); | |
| dd.on('drag:over', function(e) { | |
| console.log('drop over!'); | |
| var drag = e.drag.get('node'), | |
| drop = e.drop.get('node'); | |
| drop.insert(drag, draggingUp ? 'before' : 'after'); | |
| e.drop.sizeShim(); | |
| }); | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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