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- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="UTF-8">
- <title>Constrain Draggable - jQuery EasyUI Demo</title>
- <link rel="stylesheet" type="text/css" href="../../themes/default/easyui.css">
- <link rel="stylesheet" type="text/css" href="../../themes/icon.css">
- <link rel="stylesheet" type="text/css" href="../demo.css">
- <script type="text/javascript" src="../../jquery.min.js"></script>
- <script type="text/javascript" src="../../jquery.easyui.min.js"></script>
- </head>
- <body>
- <h2>Constrain Draggable</h2>
- <div class="demo-info">
- <div class="demo-tip icon-tip"></div>
- <div>The draggable object can only be moved within its parent container.</div>
- </div>
- <div style="margin:10px 0;"></div>
- <div style="position:relative;overflow:hidden;border:1px solid #ccc;width:500px;height:300px">
- <div class="easyui-draggable" data-options="onDrag:onDrag" style="width:100px;height:100px;background:#fafafa;border:1px solid #ccc;">
- </div>
- </div>
- <script>
- function onDrag(e){
- var d = e.data;
- if (d.left < 0){d.left = 0}
- if (d.top < 0){d.top = 0}
- if (d.left + $(d.target).outerWidth() > $(d.parent).width()){
- d.left = $(d.parent).width() - $(d.target).outerWidth();
- }
- if (d.top + $(d.target).outerHeight() > $(d.parent).height()){
- d.top = $(d.parent).height() - $(d.target).outerHeight();
- }
- }
- </script>
- </body>
- </html>
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