jQuery UI-Draggable常用参数集合。 Draggable
库文件：ui/ui.core.js、ui/ui.draggable.js
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Default：
$(”#draggable”).draggable();
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constrain-movement(限制范围移动)：
$(”#draggable”).draggable({ axis: ‘y' }); //限制y轴
$(”#draggable2″).draggable({ axis: ‘x' }); //限制x轴
$(”#draggable3″).draggable({ containment: ‘#containment-wrapper', scroll: false }); //不出现滚动条
$(”#draggable4″).draggable({ containment: ‘#demo-frame' });
$(”#draggable5″).draggable({ containment: ‘parent' }); //限制在父系框架中
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delay-start(延时移动)：
$(”#draggable”).draggable({ distance: 20 }); //移动20像素开始拖动
$(”#draggable2″).draggable({ delay: 1000 });//延迟1秒后开始拖动
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snap-to (吸附移动)：
$(”#draggable”).draggable({ snap: true }); //默认，任何方式吸附
$(”#draggable2″).draggable({ snap: ‘.ui-widget-header' }); //以某元素的内外径吸附
$(”#draggable3″).draggable({ snap: ‘.ui-widget-header', snapMode: ‘outer' }); //以某元素外径吸附,吸附方式:本上吸其下，本下吸其上. 内径吸附：inner, 吸附方式:相反
$(”#draggable4″).draggable({ grid: [20,20] });//以一定距离移动
$(”#draggable5″).draggable({ grid: [80, 80] });
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scroll：
$(”#draggable”).draggable({ scroll: true });
$(”#draggable2″).draggable({ scroll: true, scrollSensitivity: 100 }); //滚动条敏感度
$(”#draggable3″).draggable({ scroll: true, scrollSpeed: 100 }); //滚动速度
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revert position(恢复到原始位置)：
$(”#draggable”).draggable({ revert: true }); //revert:true 设置为恢复到位置
$(”#draggable2″).draggable({ revert: true, helper: ‘clone' }); //helper:'clone' 复制拖动
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visualfeedback (视觉效果)：
$(”#draggable”).draggable({ helper: ‘original' }); //设置不复制(初始化设置)
$(”#draggable2″).draggable({ opacity: 0.7, helper: ‘clone' }); //opacity设置透明度,并克隆元素
$(”#draggable3″).draggable({
cursor: ‘move', //设置鼠标图形
cursorAt: { top: -12, left: -20 }, //位置定位坐标设置
helper: function(event) {
return $('
I\'m a custom helper
');
} //新建提示元素,上面设置其以鼠标定位位置值
});
$(”#set div”).draggable({ stack: { group: ‘#set div', min: -1 } });//群组设置拖动,并且最后添加的元素叠加到该群组的最上面.适合做许愿板效果。
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Drag handle (拖动点设置)：
$(”#draggable”).draggable({ handle: ‘p' }); //handle设置实现拖动位置
$(”#draggable2″).draggable({ cancel: “p.ui-widget-header” }); //cancel设置限制拖动位置
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Cursor style (鼠标样式)：
$(”#draggable”).draggable({ cursorAt: { cursor: ‘move', top: 56, left: 56 } }); //cursor设置鼠标样式, top、left、right、bottom设置元素相对鼠标的定位点
$(”#draggable2″).draggable({ cursorAt: { cursor: ‘crosshair', top: -5, left: -5 } });
$(”#draggable3″).draggable({ cursorAt: { bottom: 0 } });
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Cursor style (鼠标样式)：
$(”#draggable”).draggable({ cursorAt: { cursor: ‘move', top: 56, left: 56 } }); //cursor设置鼠标样式, top、left、right、bottom设置元素相对鼠标的定位点
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Draggable+sortable：
$(”#sortable”).sortable({
revert: true
});
$(”#draggable”).draggable({
connectToSortable: ‘#sortable', //设置拖动加入到其他列表中
helper: ‘clone',
revert: ‘invalid'
});

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