jQuery UI 实例 – 缩放(Resizable)
jQuery UI 实例 - 缩放(Resizable)
jQuery UI缩放能够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="http://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="http://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="http://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="http://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="http://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="http://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="http://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="http://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="http://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="http://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="http://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>