只有当光标在 draggable 上指定部分时才允许拖拽。使用 handle
选项来指定用于拖拽对象的元素(或元素组)的 jQuery 选择器。
Or prevent dragging when the cursor is over a specific element (or group of elements) within the draggable. Use the cancel option to specify a jQuery selector over which to "cancel" draggable functionality.
或者当光标在 draggable 内指定元素(或元素组)上时不允许拖拽。使用 handle
选项来指定取消拖拽功能的 jQuery 选择器。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 拖动(Draggable) - Handles</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
<style>
#draggable, #draggable2 { width: 100px; height: 100px; padding: 0.5em; float: left; margin: 0 10px 10px 0; }
#draggable p { cursor: move; }
</style>
<script>
$(function() {
$( "#draggable" ).draggable({ handle: "p" });
$( "#draggable2" ).draggable({ cancel: "p.ui-widget-header" });
$( "div, p" ).disableSelection();
});
</script>
</head>
<body>
<div id="draggable" class="ui-widget-content">
<p class="ui-widget-header">您只可以在这个范围内拖拽我</p>
</div>
<div id="draggable2" class="ui-widget-content">
<p>您可以把我向四周拖拽…</p>
<p class="ui-widget-header">…但是您不可以在这个范围内拖拽我</p>
</div>
</body>
</html>