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2011-02-16 16:09:48 +01:00

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>YUI Library Examples: Button Control: Fixed Width Menu Button</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<link rel="stylesheet" type="text/css" href="../../assets/yui.css" >
<style>
/*Supplemental CSS for the YUI distribution*/
#custom-doc { width: 95%; min-width: 950px; }
#pagetitle {background-image: url(../../assets/bg_hd.gif);}
</style>
<link rel="stylesheet" type="text/css" href="../../assets/dpSyntaxHighlighter.css">
<!--Script and CSS includes for YUI dependencies on this page-->
<link rel="stylesheet" type="text/css" href="../../build/logger/assets/skins/sam/logger.css" />
<link rel="stylesheet" type="text/css" href="../../build/menu/assets/skins/sam/menu.css" />
<link rel="stylesheet" type="text/css" href="../../build/button/assets/skins/sam/button.css" />
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<script type="text/javascript" src="../../build/element/element-min.js"></script>
<script type="text/javascript" src="../../build/button/button-debug.js"></script>
<!--begin custom header content for this example-->
<style type="text/css">
/*
Set the "zoom" property to "normal" since it is set to "1" by the
".example-container .bd" rule in yui.css and this causes a Menu
instance's width to expand to 100% of the browser viewport.
*/
div.yuimenu .bd {
zoom: normal;
}
#categorybutton button {
/*
Suppress the focus outline since Safari will outline even the
text that is clipped by the application of the "overflow" property
in the follow style rule.
*/
outline: none;
}
#categorybutton button em {
font-style: normal;
display: block;
text-align: left;
white-space: nowrap;
/* Restrict the width of the label to 10em. */
width: 10em;
/* Hide the overflow if the text label exceeds 10em in width. */
overflow: hidden;
/*
IE, Safari and Opera support the ability to add ellipsis when the text
label exceeds 10em in width.
*/
text-overflow: ellipsis;
-o-text-overflow: ellipsis;
}
</style>
<!--end custom header content for this example-->
<script type="text/javascript">
//enable passthrough of errors from YUI Event:
if ((typeof YAHOO !== "undefined") && (YAHOO.util) && (YAHOO.util.Event)) {
YAHOO.util.Event.throwErrors = true;
}
</script>
</head>
<body id="yahoo-com" class="yui-skin-sam">
<div id="custom-doc" class="yui-t2">
<div id="hd">
<div id="ygunav">
<p><em><a href="http://developer.yahoo.com/yui/">YUI Library Home</a></em></p>
<form action="http://search.yahoo.com/search" id="sitesearchform">
<input name="vs" type="hidden" value="developer.yahoo.com">
<input name="vs" type="hidden" value="yuiblog.com">
<div id="sitesearch">
<label for="searchinput">Site Search (YDN &amp; YUIBlog): </label>
<input type="text" id="searchinput" name="p">
<input type="submit" value="Search" id="searchsubmit" class="ygbt">
</div>
</form> </div>
<div id="ygma"><a href="../../"><img src="../../assets/yui.gif" border="0" height="38"></a></div>
<div id="pagetitle"><h1>YUI Library Examples: Button Control: Fixed Width Menu Button</h1></div>
</div>
<div id="bd">
<div id="yui-main">
<div class="yui-b">
<div class="yui-ge">
<div class="yui-u first example">
<div class="promo">
<h1>Button Control: Fixed Width Menu Button</h1>
<div class="exampleIntro">
<p>
This example demonstrates how to create a Menu Button whose text label has a
fixed width. The behavior of this widget is similar to an HTML
<code>&#60;select&#62;</code> element in that its label hides any overflow
when updated to represent the selected menu item.
</p>
</div>
<div class="example-container module ">
<div class="hd exampleHd">
<p class="newWindowButton yui-skin-sam"><!--<span id="newWindowLinkx"><span class="first-child">--><a href="btn_example12_clean.html" target="_blank">View example in new window.</a><!--</span></span>-->
</div> <div id="example-canvas" class="bd">
<!--BEGIN SOURCE CODE FOR EXAMPLE =============================== -->
<script type="text/javascript">
YAHOO.util.Event.onAvailable("buttoncontainer", function () {
// Create an array of name and value pairs that serve as the data
// source for the Button instance's menu.
var aCategories = [
{ text: "Category 1", value: "one" },
{ text: "Category 2", value: "two" },
{ text: "Category 3", value: "three" },
{ text: "A Really, Really Long Category 4", value: "four" }
];
// Create a Button instance, wrapping the text label in an <EM>
// tag that will be given a fixed width of 10em.
var oButton = new YAHOO.widget.Button({
type: "menu",
id:"categorybutton",
label: "<em>Select a Category</em>",
menu: aCategories,
container: "buttoncontainer" });
// "selectedMenuItemChange" event handler for a Button that will set
// the Button's "label" attribute to the value of the "text"
// configuration property of the MenuItem that was clicked.
var onSelectedMenuItemChange = function (event) {
var oMenuItem = event.newValue;
this.set("label", ("<em class=\"yui-button-label\">" +
oMenuItem.cfg.getProperty("text") + "</em>"));
};
// Register a "selectedMenuItemChange" event handler that will sync the
// Button's "label" attribute to the MenuItem that was clicked.
oButton.on("selectedMenuItemChange", onSelectedMenuItemChange);
});
</script>
<div id="buttoncontainer"></div>
<!--END SOURCE CODE FOR EXAMPLE =============================== -->
</div>
</div>
</div>
<p>
Begin by creating a Button instance of type "menu," wrapping its text label
in an <code>&#60;em&#62;</code> element.
</p>
<textarea name="code" class="JScript" cols="60" rows="1">
// Create an array of name and value pairs that serve as the data
// source for the Button instance's menu.
var aCategories = [
{ text: "Category 1", value: "one" },
{ text: "Category 2", value: "two" },
{ text: "Category 3", value: "three" },
{ text: "A Really, Really Long Category 4", value: "four" }
];
// Create a Button instance, wrapping the text label in an <EM>
// tag that will be given a fixed width of 10em.
var oButton = new YAHOO.widget.Button({
type: "menu",
id:"categorybutton",
label: "<em>Select a Category</em>",
menu: aCategories,
container: "buttoncontainer" });
</textarea>
<p>
Style the <code>&#60;em&#62;</code> element so that it has a fixed width of
10em, and prevent the characters from exceeding this width by setting its
"overflow" property to "hidden."
</p>
<textarea name="code" class="CSS" cols="60" rows="1">
#categorybutton button {
/*
Suppress the focus outline since Safari will outline even the
text that is clipped by the application of the "overflow" property
in the follow style rule.
*/
outline: none;
}
#categorybutton button em {
font-style: normal;
display: block;
text-align: left;
white-space: nowrap;
/* Restrict the width of the label to 10em. */
width: 10em;
/* Hide the overflow if the text label exceeds 10em in width. */
overflow: hidden;
/*
IE and Safari support the ability to add ellipsis when the text
label exceeds 10em in width.
*/
text-overflow: ellipsis;
}
</textarea>
<p>
Finally, add a <code>selectedMenuItemChange</code> event handler to the
Button that will update its label when any item in the Menu is clicked.
</p>
<textarea name="code" class="JScript" cols="60" rows="1">
// "selectedMenuItemChange" event handler for a Button that will set
// the Button's "label" attribute to the value of the "text"
// configuration property of the MenuItem that was clicked.
var onSelectedMenuItemChange = function (event) {
var oMenuItem = event.newValue;
this.set("label", ("<em class=\"yui-button-label\">" +
oMenuItem.cfg.getProperty("text") + "</em>"));
};
// Register a "selectedMenuItemChange" event handler that will sync the
// Button's "label" attribute to the MenuItem that was clicked.
oButton.on("selectedMenuItemChange", onSelectedMenuItemChange);
</textarea>
<h2>Configuration for This Example</h2>
<p>You can load the necessary JavaScript and CSS for this example from Yahoo's servers. <a href="http://developer.yahoo.com/yui/articles/hosting/?menu&button&MIN#configure">Click here to load the YUI Dependency Configurator with all of this example's dependencies preconfigured</a>.</p>
</div>
<div class="yui-u">
<div id="loggerModule" class="yui-skin-sam">
<h3 class="firstContent">YUI Logger Output:</h3>
<div id="loggerDiv"></div>
<div id="loggerGloss">
<p><strong>Note:</strong> You are viewing this example in debug mode with logging enabled. This can significantly slow performance.</p>
<p class="loggerButton"><span id="loggerLink"><span class="first-child"><a href="btn_example12.html">Reload with logging<br />and debugging disabled.</a></span></span></p>
</div>
</div>
<div id="examples">
<h3>Button Control Examples:</h3>
<div id="exampleToc">
<ul>
<li><a href='../button/btn_example01.html'>Push Buttons</a></li><li><a href='../button/btn_example02.html'>Link Buttons</a></li><li><a href='../button/btn_example03.html'>Checkbox Buttons</a></li><li><a href='../button/btn_example04.html'>Radio Buttons</a></li><li><a href='../button/btn_example05.html'>Submit Buttons</a></li><li><a href='../button/btn_example06.html'>Reset Buttons</a></li><li><a href='../button/btn_example07.html'>Menu Buttons</a></li><li><a href='../button/btn_example08.html'>Split Buttons</a></li><li><a href='../button/btn_example09.html'>Simple Calendar Menu Button</a></li><li><a href='../button/btn_example10.html'>Calendar Menu Button with Date on Button Face</a></li><li><a href='../button/btn_example11.html'>Color Picker Button</a></li><li class='selected'><a href='../button/btn_example12.html'>Fixed Width Menu Button</a></li><li><a href='../button/btn_example13.html'>Glowing Button</a></li><li><a href='../button/btn_example14.html'>Slider Button</a></li><li><a href='../button/button-ariaplugin.html'>Using the Button ARIA Plugin</a></li><li><a href='../button/button-menu-select.html'>Using A Menu Button To Replace A &#60;select&#62; Element</a></li><li><a href='../button/button-menu-swap.html'>Replacing the content of a Button's Menu</a></li><li><a href='../autocomplete/ac_combobox.html'>Combobox, with CSS for Multiple Stacked Instances (included with examples for AutoComplete Control)</a></li><li><a href='../datatable/dt_colshowhide.html'>Showing, Hiding, and Reordering Columns. (included with examples for DataTable Control)</a></li><li><a href='../get/get-css-basic.html'>Getting CSS Style Sheets (included with examples for Get Utility)</a></li><li><a href='../layout/adv_layout.html'>Complex Application (included with examples for Layout Manager)</a></li> </ul>
</div>
</div>
<div id="module">
<h3>More Button Control Resources:</h3>
<ul>
<li><a href="http://developer.yahoo.com/yui/button/">User's Guide</a> (external)</li>
<li><a href="../../docs/module_button.html">API Documentation</a></li>
<li><a href="http://yuiblog.com/assets/pdf/cheatsheets/button.pdf">Cheat Sheet PDF</a> (external)</li></ul>
</div>
</div>
</div>
</div>
</div>
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