Created
January 30, 2013 10:39
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simple jquery drag plugin
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| $.fn.drag = (options) -> | |
| defaults = | |
| handler: false | |
| opacity: 0.5 | |
| onlyX: false | |
| onlyY: false | |
| opts = $.extend(defaults, options) | |
| this.each -> | |
| isMove = false | |
| if opts.handler | |
| handler = $(@).find(opts.handler) | |
| else | |
| handler = $(@) | |
| handler.css | |
| "-webkit-user-select":"none" | |
| "position":"absolute" | |
| "top":0 | |
| "left":0 | |
| handler.parent().css | |
| "position":"relative" | |
| dx = 0 | |
| dy = 0 | |
| $(document).mousemove (e) -> | |
| if isMove | |
| unless opts.onlyY | |
| eX = e.pageX | |
| handler.css 'left': eX - dx | |
| unless opts.onlyX | |
| eY = e.pageY | |
| handler.css 'top': eY - dy | |
| .mouseup -> | |
| isMove = false | |
| handler.fadeTo('fast', 1) | |
| handler.mousedown (e) -> | |
| if $(e.target).is(handler) or handler.has($(e.target)) | |
| isMove = true | |
| $(@).css 'cursor':'move' | |
| handler.fadeTo('fast', opts.opacity) | |
| unless opts.onlyY | |
| dx = e.pageX - parseInt(handler.css("left")) | |
| unless opts.onlyX | |
| dy = e.pageY - parseInt(handler.css("top")) |
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