jQuery UI 实例 - 缩放(Resizable)
使用鼠标改变元素的尺寸。
如需了解更多有关 resizable 交互的细节,请查看 API 文档 可调整尺寸小部件(Resizable Widget)。
默认功能
在任意的 DOM 元素上启用 resizable 功能。通过鼠标拖拽右边或底边的边框到所需的宽度或高度。
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 缩放(Resizable) - 默认功能</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="https://jqueryui.com/resources/demos/style.css"> <style> #resizable { width: 150px; height: 150px; padding: 0.5em; } #resizable h3 { text-align: center; margin: 0; } </style> <script> $(function() { $( "#resizable" ).resizable(); }); </script> </head> <body> <div id="resizable" class="ui-widget-content"> <h3 class="ui-widget-header">缩放(Resizable)</h3> </div> </body> </html>
动画
使用 animate
选项(布尔值)使缩放行为动画化。当该选项设置为 true 时,拖拽轮廓到所需的位置,元素会在拖拽停止时以动画形式调整到该尺寸。
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 缩放(Resizable) - 动画</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="https://jqueryui.com/resources/demos/style.css"> <style> #resizable { width: 150px; height: 150px; padding: 0.5em; } #resizable h3 { text-align: center; margin: 0; } .ui-resizable-helper { border: 1px dotted gray; } </style> <script> $(function() { $( "#resizable" ).resizable({ animate: true }); }); </script> </head> <body> <div id="resizable" class="ui-widget-content"> <h3 class="ui-widget-header">动画</h3> </div> </body> </html>
限制缩放区域
定义缩放区域的边界。使用 containment
选项来指定一个父级的 DOM 元素或一个 jQuery 选择器,比如 'document.'。
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 缩放(Resizable) - 限制缩放区域</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="https://jqueryui.com/resources/demos/style.css"> <style> #container { width: 300px; height: 300px; } #container h3 { text-align: center; margin: 0; margin-bottom: 10px; } #resizable { background-position: top left; width: 150px; height: 150px; } #resizable, #container { padding: 0.5em; } </style> <script> $(function() { $( "#resizable" ).resizable({ containment: "#container" }); }); </script> </head> <body> <div id="container" class="ui-widget-content"> <h3 class="ui-widget-header">限制</h3> <div id="resizable" class="ui-state-active"> <h3 class="ui-widget-header">缩放(Resizable)</h3> </div> </div> </body> </html>
延迟开始
通过 delay
选项设置延迟开始缩放的毫秒数。通过 distance
选项设置光标被按下且拖拽指定像素后才允许缩放。
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 缩放(Resizable) - 延迟开始</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="https://jqueryui.com/resources/demos/style.css"> <style> #resizable, #resizable2 { width: 150px; height: 150px; padding: 0.5em; } #resizable h3, #resizable2 h3 { text-align: center; margin: 0; } </style> <script> $(function() { $( "#resizable" ).resizable({ delay: 1000 }); $( "#resizable2" ).resizable({ distance: 40 }); }); </script> </head> <body> <h3 class="docs">时间延迟 (ms):</h3> <div id="resizable" class="ui-widget-content"> <h3 class="ui-widget-header">时间</h3> </div> <h3 class="docs">距离延迟 (px):</h3> <div id="resizable2" class="ui-widget-content"> <h3 class="ui-widget-header">距离</h3> </div> </body> </html>
助手
通过设置 helper
选项为一个 CSS class,当缩放时只显示元素的轮廓。
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 缩放(Resizable) - 助手</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="https://jqueryui.com/resources/demos/style.css"> <style> #resizable { width: 150px; height: 150px; padding: 0.5em; } #resizable h3 { text-align: center; margin: 0; } .ui-resizable-helper { border: 2px dotted #00F; } </style> <script> $(function() { $( "#resizable" ).resizable({ helper: "ui-resizable-helper" }); }); </script> </head> <body> <div id="resizable" class="ui-widget-content"> <h3 class="ui-widget-header">助手</h3> </div> </body> </html>
最大/最小尺寸
使用 maxHeight
、maxWidth
、minHeight
和 minWidth
选项限制 resizable 元素的最大或最小高度或宽度。
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 缩放(Resizable) - 最大/最小尺寸</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="https://jqueryui.com/resources/demos/style.css"> <style> #resizable { width: 200px; height: 150px; padding: 5px; } #resizable h3 { text-align: center; margin: 0; } </style> <script> $(function() { $( "#resizable" ).resizable({ maxHeight: 250, maxWidth: 350, minHeight: 150, minWidth: 200 }); }); </script> </head> <body> <div id="resizable" class="ui-widget-content"> <h3 class="ui-widget-header">放大/缩小</h3> </div> </body> </html>
保持纵横比
保持现有的纵横比或设置一个新的纵横比来限制缩放比例。设置 aspectRatio
选项为 true,且可选地传递一个新的比率(比如,4/3)。
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 缩放(Resizable) - 保持纵横比</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="https://jqueryui.com/resources/demos/style.css"> <style> #resizable { width: 160px; height: 90px; padding: 0.5em; } #resizable h3 { text-align: center; margin: 0; } </style> <script> $(function() { $( "#resizable" ).resizable({ aspectRatio: 16 / 9 }); }); </script> </head> <body> <div id="resizable" class="ui-widget-content"> <h3 class="ui-widget-header">保持纵横比</h3> </div> </body> </html>
对齐到网格
对齐 resizable 元素到网格。通过 grid
选项设置网格单元的尺寸(以像素为单位的高度和宽度)。
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 缩放(Resizable) - 对齐到网格</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="https://jqueryui.com/resources/demos/style.css"> <style> #resizable { width: 150px; height: 150px; padding: 0.5em; } #resizable h3 { text-align: center; margin: 0; } </style> <script> $(function() { $( "#resizable" ).resizable({ grid: 50 }); }); </script> </head> <body> <div id="resizable" class="ui-widget-content"> <h3 class="ui-widget-header">网格</h3> </div> </body> </html>
同步缩放
通过点击并拖拽一个元素的边来同时调整多个元素的尺寸。给 alsoResize
选项传递一个共享的选择器。
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 缩放(Resizable) - 同步缩放</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="https://jqueryui.com/resources/demos/style.css"> <style> #resizable { background-position: top left; } #resizable, #also { width: 150px; height: 120px; padding: 0.5em; } #resizable h3, #also h3 { text-align: center; margin: 0; } #also { margin-top: 1em; } </style> <script> $(function() { $( "#resizable" ).resizable({ alsoResize: "#also" }); $( "#also" ).resizable(); }); </script> </head> <body> <div id="resizable" class="ui-widget-header"> <h3 class="ui-state-active">缩放</h3> </div> <div id="also" class="ui-widget-content"> <h3 class="ui-widget-header">同步缩放</h3> </div> </body> </html>
文本框
可缩放的文本框。
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 缩放(Resizable) - 文本框</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="https://jqueryui.com/resources/demos/style.css"> <style> .ui-resizable-se { bottom: 17px; } </style> <script> $(function() { $( "#resizable" ).resizable({ handles: "se" }); }); </script> </head> <body> <textarea id="resizable" rows="5" cols="20"></textarea> </body> </html>
视觉反馈
通过设置 ghost
选项为 true,可在缩放期间显示一个半透明的元素,而不是显示一个实际的元素。
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 缩放(Resizable) - 视觉反馈</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="https://jqueryui.com/resources/demos/style.css"> <style> #resizable { width: 150px; height: 150px; padding: 0.5em; } #resizable h3 { text-align: center; margin: 0; } .ui-resizable-ghost { border: 1px dotted gray; } </style> <script> $(function() { $( "#resizable" ).resizable({ ghost: true }); }); </script> </head> <body> <div id="resizable" class="ui-widget-content"> <h3 class="ui-widget-header">Ghost</h3> </div> </body> </html>