Created
December 17, 2013 01:33
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jQuery div drag demo.
demo Url: jsbin.com/AlULIxi/1000
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script> | |
| <meta charset=utf-8 /> | |
| <style> | |
| body{ | |
| margin:0; | |
| padding:0; | |
| } | |
| #div1 { | |
| background-color: red; | |
| width: 100px; | |
| height: 100px; | |
| position: absolute; | |
| top: 100px; | |
| left: 100px; | |
| } | |
| #container { | |
| border-style: solid; | |
| border-color: green; | |
| border-width: 2px 4px 6px 8px; | |
| width: 450px; | |
| height: 600px; | |
| position : absolute; | |
| top: 20px; | |
| left: 20px; | |
| } | |
| </style> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <div id="container"> | |
| <div id="div1"></div> | |
| </div> | |
| </body> | |
| </html> | |
| <script> | |
| var $block = $('#div1'); | |
| var bW = $block.width(); | |
| var bH = $block.height(); | |
| var $doc = $(document); | |
| var $ctr = $('#container'); | |
| var cW = $ctr.width(); | |
| var cH = $ctr.height(); | |
| var cbl = parseInt($ctr.css('border-left-width')); | |
| var cbt = parseInt($ctr.css('border-top-width')); | |
| var cPos = $ctr.offset(); | |
| var cX = cPos.left; | |
| var cY = cPos.top; | |
| $block.mousedown(function(e){ | |
| e.preventDefault(); | |
| var blockX = $block.offset().left; | |
| var blockY = $block.offset().top; | |
| var mouseX = e.pageX; | |
| var mouseY = e.pageY; | |
| $doc.mousemove(function(e){ | |
| var x = e.pageX - mouseX; | |
| var y = e.pageY - mouseY; | |
| var nowX = blockX + x; | |
| var nowY = blockY + y; | |
| if(nowX<=cX+cbl) nowX = cX+cbl; | |
| if(nowX>=cX+cW-bW+cbl) nowX = cX + cW - bW + cbl; | |
| if(nowY<=cY+cbt) nowY = cY + cbt; | |
| if(nowY>=cY+cH-bH+cbt) nowY = cY+ cH - bH + cbt; | |
| $block.offset({ | |
| left: nowX, | |
| top: nowY | |
| }); | |
| }); | |
| }); | |
| $doc.mouseup(function(){ | |
| $doc.unbind('mousemove'); | |
| }); | |
| document.onselectstart=function(){return false}; | |
| </script> | |
| <!-- | |
| </body> | |
| </html> | |
| --> | |
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