jQuery UI(三十)

编程入门行业动态更新时间:2024-10-05 19:19:19

jQuery UI(三十)

jQuery UI 实例 - 放置（Droppable）

为可拖拽小部件创建目标。

如需了解更多有关 droppable 交互的细节，请查看 API 文档可放置小部件（Droppable Widget）。

默认功能

在任意的 DOM 元素上启用 droppable 功能，并为可拖拽小部件创建目标。

<!doctype html>
<html lang="en">
<head><meta charset="utf-8"><title>jQuery UI 放置（Droppable） - 默认功能</title><link rel="stylesheet" href="//code.jquery/ui/1.10.4/themes/smoothness/jquery-ui.css"><script src="//code.jquery/jquery-1.9.1.js"></script><script src="//code.jquery/ui/1.10.4/jquery-ui.js"></script><link rel="stylesheet" href=".css"><style>#draggable { width: 100px; height: 100px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; }#droppable { width: 150px; height: 150px; padding: 0.5em; float: left; margin: 10px; }</style><script>$(function() {$( "#draggable" ).draggable();$( "#droppable" ).droppable({drop: function( event, ui ) {$( this ).addClass( "ui-state-highlight" ).find( "p" ).html( "Dropped!" );}});});</script>
</head>
<body><div id="draggable" class="ui-widget-content"><p>请把我拖拽到目标处！</p>
</div><div id="droppable" class="ui-widget-header"><p>请放置在这里！</p>
</div></body>
</html>

接受

使用 accept 选项指定目标 droppable 接受哪一个元素（或元素组）。

<!doctype html>
<html lang="en">
<head><meta charset="utf-8"><title>jQuery UI 放置（Droppable） - 接受</title><link rel="stylesheet" href="//code.jquery/ui/1.10.4/themes/smoothness/jquery-ui.css"><script src="//code.jquery/jquery-1.9.1.js"></script><script src="//code.jquery/ui/1.10.4/jquery-ui.js"></script><link rel="stylesheet" href=".css"><style>#droppable { width: 150px; height: 150px; padding: 0.5em; float: left; margin: 10px; }#draggable, #draggable-nonvalid { width: 100px; height: 100px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; }</style><script>$(function() {$( "#draggable, #draggable-nonvalid" ).draggable();$( "#droppable" ).droppable({accept: "#draggable",activeClass: "ui-state-hover",hoverClass: "ui-state-active",drop: function( event, ui ) {$( this ).addClass( "ui-state-highlight" ).find( "p" ).html( "Dropped!" );}});});</script>
</head>
<body><div id="draggable-nonvalid" class="ui-widget-content"><p>我是不能被放置的 draggable</p>
</div><div id="draggable" class="ui-widget-content"><p>请拖拽我到目标</p>
</div><div id="droppable" class="ui-widget-header"><p>accept: '#draggable'</p>
</div></body>
</html>

防止传播

当使用嵌套的 droppable 时 — 例如，您可以有一个树形的可编辑的目录结构，带有文件夹和文档节点 — greedy 选项设置为 true 来防止当 draggable 被放置在子节点（droppable）上时的事件传播。

<!doctype html>
<html lang="en">
<head><meta charset="utf-8"><title>jQuery UI 放置（Droppable） - 防止传播</title><link rel="stylesheet" href="//code.jquery/ui/1.10.4/themes/smoothness/jquery-ui.css"><script src="//code.jquery/jquery-1.9.1.js"></script><script src="//code.jquery/ui/1.10.4/jquery-ui.js"></script><link rel="stylesheet" href=".css"><style>#draggable { width: 100px; height: 40px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; }#droppable, #droppable2 { width: 230px; height: 120px; padding: 0.5em; float: left; margin: 10px; }#droppable-inner, #droppable2-inner { width: 170px; height: 60px; padding: 0.5em; float: left; margin: 10px; }</style><script>$(function() {$( "#draggable" ).draggable();$( "#droppable, #droppable-inner" ).droppable({activeClass: "ui-state-hover",hoverClass: "ui-state-active",drop: function( event, ui ) {$( this ).addClass( "ui-state-highlight" ).find( "> p" ).html( "Dropped!" );return false;}});$( "#droppable2, #droppable2-inner" ).droppable({greedy: true,activeClass: "ui-state-hover",hoverClass: "ui-state-active",drop: function( event, ui ) {$( this ).addClass( "ui-state-highlight" ).find( "> p" ).html( "Dropped!" );}});});</script>
</head>
<body><div id="draggable" class="ui-widget-content"><p>请拖拽我到目标</p>
</div><div id="droppable" class="ui-widget-header"><p>外部 droppable</p><div id="droppable-inner" class="ui-widget-header"><p>内部 droppable（不带有 greedy）</p></div>
</div><div id="droppable2" class="ui-widget-header"><p>外部 droppable</p><div id="droppable2-inner" class="ui-widget-header"><p>内部 droppable（带有 greedy）</p></div>
</div></body>
</html>

还原 draggable 的位置

当带有布尔值 revert 选项的 draggable 停止拖拽时，返回 draggable（或它的助手）到原始位置。

<!doctype html>
<html lang="en">
<head><meta charset="utf-8"><title>jQuery UI 放置（Droppable） - 还原 draggable 的位置</title><link rel="stylesheet" href="//code.jquery/ui/1.10.4/themes/smoothness/jquery-ui.css"><script src="//code.jquery/jquery-1.9.1.js"></script><script src="//code.jquery/ui/1.10.4/jquery-ui.js"></script><link rel="stylesheet" href=".css"><style>#draggable, #draggable2 { width: 100px; height: 100px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; }#droppable { width: 150px; height: 150px; padding: 0.5em; float: left; margin: 10px; }</style><script>$(function() {$( "#draggable" ).draggable({ revert: "valid" });$( "#draggable2" ).draggable({ revert: "invalid" });$( "#droppable" ).droppable({activeClass: "ui-state-default",hoverClass: "ui-state-hover",drop: function( event, ui ) {$( this ).addClass( "ui-state-highlight" ).find( "p" ).html( "已放置！" );}});});</script>
</head>
<body><div id="draggable" class="ui-widget-content"><p>当被放置在目标上时还原</p>
</div><div id="draggable2" class="ui-widget-content"><p>当未被放置在目标上时还原</p>
</div><div id="droppable" class="ui-widget-header"><p>请放置在这里</p>
</div></body>
</html>

购物车演示

演示如何使用折叠面板来展示产品的目录结构，使用拖拽和放置来添加产品到购物车，购物车中的产品是可排序的。

<!doctype html>
<html lang="en">
<head><meta charset="utf-8"><title>jQuery UI 放置（Droppable） - 购物车演示</title><link rel="stylesheet" href="//code.jquery/ui/1.10.4/themes/smoothness/jquery-ui.css"><script src="//code.jquery/jquery-1.9.1.js"></script><script src="//code.jquery/ui/1.10.4/jquery-ui.js"></script><link rel="stylesheet" href=".css"><style>h1 { padding: .2em; margin: 0; }#products { float:left; width: 500px; margin-right: 2em; }#cart { width: 200px; float: left; margin-top: 1em; }/* 定义列表样式，以便最大化 droppable */#cart ol { margin: 0; padding: 1em 0 1em 3em; }</style><script>$(function() {$( "#catalog" ).accordion();$( "#catalog li" ).draggable({appendTo: "body",helper: "clone"});$( "#cart ol" ).droppable({activeClass: "ui-state-default",hoverClass: "ui-state-hover",accept: ":not(.ui-sortable-helper)",drop: function( event, ui ) {$( this ).find( ".placeholder" ).remove();$( "<li></li>" ).text( ui.draggable.text() ).appendTo( this );}}).sortable({items: "li:not(.placeholder)",sort: function() {// 获取由 droppable 与 sortable 交互而加入的条目// 使用 connectWithSortable 可以解决这个问题，但不允许您自定义 active/hoverClass 选项$( this ).removeClass( "ui-state-default" );}});});</script>
</head>
<body><div id="products"><h1 class="ui-widget-header">产品</h1><div id="catalog"><h2><a href="#">T-Shirts</a></h2><div><ul><li>Lolcat Shirt</li><li>Cheezeburger Shirt</li><li>Buckit Shirt</li></ul></div><h2><a href="#">Bags</a></h2><div><ul><li>Zebra Striped</li><li>Black Leather</li><li>Alligator Leather</li></ul></div><h2><a href="#">Gadgets</a></h2><div><ul><li>iPhone</li><li>iPod</li><li>iPad</li></ul></div></div>
</div><div id="cart"><h1 class="ui-widget-header">购物车</h1><div class="ui-widget-content"><ol><li class="placeholder">添加产品到这里</li></ol></div>
</div></body>
</html>

简单的照片管理器

您可以通过拖拽照片到回收站或者点击回收站图标来删除照片。

您可以通过拖拽照片到相册或者点击回收利用图标来还原照片。

您可以通过点击缩放图标来查看大图。jQuery UI 对话框（dialog）部件用于模态窗口。

<!doctype html>
<html lang="en">
<head><meta charset="utf-8"><title>jQuery UI 放置（Droppable） - 简单的照片管理器</title><link rel="stylesheet" href="//code.jquery/ui/1.10.4/themes/smoothness/jquery-ui.css"><script src="//code.jquery/jquery-1.9.1.js"></script><script src="//code.jquery/ui/1.10.4/jquery-ui.js"></script><link rel="stylesheet" href=".css"><style>#gallery { float: left; width: 65%; min-height: 12em; }.gallery.custom-state-active { background: #eee; }.gallery li { float: left; width: 96px; padding: 0.4em; margin: 0 0.4em 0.4em 0; text-align: center; }.gallery li h5 { margin: 0 0 0.4em; cursor: move; }.gallery li a { float: right; }.gallery li a.ui-icon-zoomin { float: left; }.gallery li img { width: 100%; cursor: move; }#trash { float: right; width: 32%; min-height: 18em; padding: 1%; }#trash h4 { line-height: 16px; margin: 0 0 0.4em; }#trash h4 .ui-icon { float: left; }#trash .gallery h5 { display: none; }</style><script>$(function() {// 这是相册和回收站var $gallery = $( "#gallery" ),$trash = $( "#trash" );// 让相册的条目可拖拽$( "li", $gallery ).draggable({cancel: "a.ui-icon", // 点击一个图标不会启动拖拽revert: "invalid", // 当未被放置时，条目会还原回它的初始位置containment: "document",helper: "clone",cursor: "move"});// 让回收站可放置，接受相册的条目$trash.droppable({accept: "#gallery > li",activeClass: "ui-state-highlight",drop: function( event, ui ) {deleteImage( ui.draggable );}});// 让相册可放置，接受回收站的条目$gallery.droppable({accept: "#trash li",activeClass: "custom-state-active",drop: function( event, ui ) {recycleImage( ui.draggable );}});// 图像删除功能var recycle_icon = "<a href='link/to/recycle/script/when/we/have/js/off' title='还原图像' class='ui-icon ui-icon-refresh'>还原图像</a>";function deleteImage( $item ) {$item.fadeOut(function() {var $list = $( "ul", $trash ).length ?$( "ul", $trash ) :$( "<ul class='gallery ui-helper-reset'/>" ).appendTo( $trash );$item.find( "a.ui-icon-trash" ).remove();$item.append( recycle_icon ).appendTo( $list ).fadeIn(function() {$item.animate({ width: "48px" }).find( "img" ).animate({ height: "36px" });});});}// 图像还原功能var trash_icon = "<a href='link/to/trash/script/when/we/have/js/off' title='删除图像' class='ui-icon ui-icon-trash'>删除图像</a>";function recycleImage( $item ) {$item.fadeOut(function() {$item.find( "a.ui-icon-refresh" ).remove().end().css( "width", "96px").append( trash_icon ).find( "img" ).css( "height", "72px" ).end().appendTo( $gallery ).fadeIn();});}// 图像预览功能，演示 ui.dialog 作为模态窗口使用function viewLargerImage( $link ) {var src = $link.attr( "href" ),title = $link.siblings( "img" ).attr( "alt" ),$modal = $( "img[src$='" + src + "']" );if ( $modal.length ) {$modal.dialog( "open" );} else {var img = $( "<img alt='" + title + "' width='384' height='288' style='display: none; padding: 8px;' />" ).attr( "src", src ).appendTo( "body" );setTimeout(function() {img.dialog({title: title,width: 400,modal: true});}, 1 );}}// 通过事件代理解决图标行为$( "ul.gallery > li" ).click(function( event ) {var $item = $( this ),$target = $( event.target );if ( $target.is( "a.ui-icon-trash" ) ) {deleteImage( $item );} else if ( $target.is( "a.ui-icon-zoomin" ) ) {viewLargerImage( $target );} else if ( $target.is( "a.ui-icon-refresh" ) ) {recycleImage( $item );}return false;});});</script>
</head>
<body><div class="ui-widget ui-helper-clearfix"><ul id="gallery" class="gallery ui-helper-reset ui-helper-clearfix"><li class="ui-widget-content ui-corner-tr"><h5 class="ui-widget-header">High Tatras</h5><img src="/wp-content/uploads/2014/03/high_tatras_min.jpg" alt="High Tatras 的最高峰" width="96" height="72"><a href="/wp-content/uploads/2014/03/high_tatras.jpg" title="查看大图" class="ui-icon ui-icon-zoomin">查看大图</a><a href="link/to/trash/script/when/we/have/js/off" title="删除图像" class="ui-icon ui-icon-trash">删除图像</a></li><li class="ui-widget-content ui-corner-tr"><h5 class="ui-widget-header">High Tatras 2</h5><img src="/wp-content/uploads/2014/03/high_tatras2_min.jpg" alt="绿山湖畔的小屋" width="96" height="72"><a href="/wp-content/uploads/2014/03/high_tatras2.jpg" title="查看大图" class="ui-icon ui-icon-zoomin">查看大图</a><a href="link/to/trash/script/when/we/have/js/off" title="删除图像" class="ui-icon ui-icon-trash">删除图像</a></li><li class="ui-widget-content ui-corner-tr"><h5 class="ui-widget-header">High Tatras 3</h5><img src="/wp-content/uploads/2014/03/high_tatras3_min.jpg" alt="计划登高" width="96" height="72"><a href="/wp-content/uploads/2014/03/high_tatras3.jpg" title="查看大图" class="ui-icon ui-icon-zoomin">查看大图</a><a href="link/to/trash/script/when/we/have/js/off" title="删除图像" class="ui-icon ui-icon-trash">删除图像</a></li><li class="ui-widget-content ui-corner-tr"><h5 class="ui-widget-header">High Tatras 4</h5><img src="/wp-content/uploads/2014/03/high_tatras4_min.jpg" alt="在 Kozi kopka 的顶部" width="96" height="72"><a href="/wp-content/uploads/2014/03/high_tatras4.jpg" title="查看大图" class="ui-icon ui-icon-zoomin">查看大图</a><a href="link/to/trash/script/when/we/have/js/off" title="删除图像" class="ui-icon ui-icon-trash">删除图像</a></li>
</ul><div id="trash" class="ui-widget-content ui-state-default"><h4 class="ui-widget-header"><span class="ui-icon ui-icon-trash">回收站</span> 回收站</h4>
</div></div></body>
</html>

视觉反馈

当悬停在 droppable 上时，或者当 droppable 被激活（即一个可接受的 draggable 被放置在 droppable 上）时，改变 droppable 的外观。使用 hoverClass 或 activeClass 选项来分别指定 class。

<!doctype html>
<html lang="en">
<head><meta charset="utf-8"><title>jQuery UI 放置（Droppable） - 视觉反馈</title><link rel="stylesheet" href="//code.jquery/ui/1.10.4/themes/smoothness/jquery-ui.css"><script src="//code.jquery/jquery-1.9.1.js"></script><script src="//code.jquery/ui/1.10.4/jquery-ui.js"></script><link rel="stylesheet" href=".css"><style>#draggable, #draggable2 { width: 90px; height: 90px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; }#droppable, #droppable2 { width: 120px; height: 120px; padding: 0.5em; float: left; margin: 10px; }h3 { clear: left; }</style><script>$(function() {$( "#draggable" ).draggable();$( "#droppable" ).droppable({hoverClass: "ui-state-hover",drop: function( event, ui ) {$( this ).addClass( "ui-state-highlight" ).find( "p" ).html( "Dropped!" );}});$( "#draggable2" ).draggable();$( "#droppable2" ).droppable({accept: "#draggable2",activeClass: "ui-state-default",drop: function( event, ui ) {$( this ).addClass( "ui-state-highlight" ).find( "p" ).html( "Dropped!" );}});});</script>
</head>
<body><h3>当悬停在 droppable 上时的反馈：</h3><div id="draggable" class="ui-widget-content"><p>请拖拽我到目标</p>
</div><div id="droppable" class="ui-widget-header"><p>请放置在这里</p>
</div><h3>当激活 draggable 时的反馈：</h3><div id="draggable2" class="ui-widget-content"><p>请拖拽我到目标</p>
</div><div id="droppable2" class="ui-widget-header"><p>请放置在这里</p>
</div></body>
</html>

jQuery UI 实例 – 拖动（Draggable） jQuery UI 实例 – 缩放（Resizable）

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jQuery UI(三十)

本文发布于:2024-02-27 16:09:12，感谢您对本站的认可！

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