使用jquery做一个虚拟软键盘

最新推荐文章于 2024-07-09 13:06:20 发布

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最新推荐文章于 2024-07-09 13:06:20 发布

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分类专栏： jquery 文章标签： jquery

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本文介绍了如何利用jQuery创建一个虚拟键盘。通过结合CSS、HTML和JavaScript代码，为输入框提供了一个交互式的虚拟输入设备。

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使用jquery做一个虚拟软键盘

下面是代码

css代码：

@charset "utf-8";
*{margin:0;padding:0;font-family: 'Microsoft Yahei';}
body{background:#eee; font-size: 16px;}
/* container */
#container{margin:100px auto;width:688px;}
#write{margin:0 0 5px;padding:5px;width:671px;height:200px;font-size: 16px; background:#fff;border:1px solid #f9f9f9;-moz-border-radius:5px;-webkit-border-radius:5px;}
#keyboard{margin:0;padding:0;list-style:none;}
#keyboard li{float:left;margin:0 5px 5px 0;width:40px;height:40px;line-height:40px;text-align:center;background:#fff;border:1px solid #f9f9f9;cursor:pointer;-moz-border-radius:5px;-webkit-border-radius:5px;}
#keyboard li:hover{position:relative;top:1px;left:1px;border-color:#e5e5e5;background:#FFF1C2;}
.capslock, .tab,.left-shift{clear:left;}
#keyboard .tab, #keyboard .delete{width:70px;}
#keyboard .capslock{width:80px;}
#keyboard .return{width:77px;}
#keyboard .left-shift{width:95px;}
#keyboard .right-shift{width:109px;}
.lastitem{margin-right:0;}
.uppercase{text-transform:uppercase;}
#keyboard .space{clear:left;width:681px;}
.on{display:none;}

HTML代码：

<div id="container">
	<textarea id="write" rows="6" cols="60"></textarea>
	<ul id="keyboard">
		<li class="symbol"><span class="off">`</span><span class="on">~</span></li>
		<li class="symbol"><span class="off">1</span><span class="on">!</span></li>
		<li class="symbol"><span class="off">2</span><span class="on">@</span></li>
		<li class="symbol"><span class="off">3</span><span class="on">#</span></li>
		<li class="symbol"><span class="off">4</span><span class="on">$</span></li>
		<li class="symbol"><span class="off">5</span><span class="on">%</span></li>
		<li class="symbol"><span class="off">6</span><span class="on">^</span></li>
		<li class="symbol"><span class="off">7</span><span class="on">&amp;</span></li>
		<li class="symbol"><span class="off">8</span><span class="on">*</span></li>
		<li class="symbol"><span class="off">9</span><span class="on">(</span></li>
		<li class="symbol"><span class="off">0</span><span class="on">)</span></li>
		<li class="symbol"><span class="off">-</span><span class="on">_</span></li>
		<li class="symbol"><span class="off">=</span><span class="on">+</span></li>
		<li class="delete lastitem">delete</li>
		<li class="tab">tab</li>
		<li class="letter">q</li>
		<li class="letter">w</li>
		<li class="letter">e</li>
		<li class="letter">r</li>
		<li class="letter">t</li>
		<li class="letter">y</li>
		<li class="letter">u</li>
		<li class="letter">i</li>
		<li class="letter">o</li>
		<li class="letter">p</li>
		<li class="symbol"><span class="off">[</span><span class="on">{</span></li>
		<li class="symbol"><span class="off">]</span><span class="on">}</span></li>
		<li class="symbol lastitem"><span class="off">\</span><span class="on">|</span></li>
		<li class="capslock">caps lock</li>
		<li class="letter">a</li>
		<li class="letter">s</li>
		<li class="letter">d</li>
		<li class="letter">f</li>
		<li class="letter">g</li>
		<li class="letter">h</li>
		<li class="letter">j</li>
		<li class="letter">k</li>
		<li class="letter">l</li>
		<li class="symbol"><span class="off">;</span><span class="on">:</span></li>
		<li class="symbol"><span class="off">'</span><span class="on">&quot;</span></li>
		<li class="return lastitem">return</li>
		<li class="left-shift">shift</li>
		<li class="letter">z</li>
		<li class="letter">x</li>
		<li class="letter">c</li>
		<li class="letter">v</li>
		<li class="letter">b</li>
		<li class="letter">n</li>
		<li class="letter">m</li>
		<li class="symbol"><span class="off">,</span><span class="on">&lt;</span></li>
		<li class="symbol"><span class="off">.</span><span class="on">&gt;</span></li>
		<li class="symbol"><span class="off">/</span><span class="on">?</span></li>
		<li class="right-shift lastitem">shift</li>
		<li class="space lastitem">&nbsp;</li>
	</ul>
</div>

js代码：

$(function () {
		var $write = $('#write');
		shift = false;
		capslock = false;
		$('#keyboard li').click(function(){
			var $this = $(this);
			character = $this.html();
			if ($this.hasClass('left-shift') || $this.hasClass('right-shift')) {
				$('.letter').toggleClass('uppercase');
				$('.symbol span').toggle();
				shift = (shift === true) ? false : true;
				capslock = false;
				return false;
			}
			if ($this.hasClass('capslock')) {
				$('.letter').toggleClass('uppercase');
				capslock = true;
				return false;
			}

			if ($this.hasClass('symbol')) character = $('span:visible', $this).html();
			if ($this.hasClass('space')) character = ' ';
			if ($this.hasClass('tab')) character = "\t";
			if ($this.hasClass('return')) character = "\n";

			//将字符串小写字符转换为大写。
			if ($this.hasClass('uppercase')) character = character.toUpperCase();

			if (shift === true) {
				//在被选元素上进行切换。
				$('.symbol span').toggle();
				if (capslock === false) $('.letter').toggleClass('uppercase');
				shift = false;
			}
			//add
			$write.html($write.html() + character);

			if ($this.hasClass('delete')) {
				var html = $write.html();
				$write.html(html.substr(0, html.length - 1));
				return false;
			}
		});
	});