Jquery 判断是否锁定大小写键插件

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Jquery 判断是否锁定大小写键插件

 

/**
 * Caps	Lock
 * @since for example：$("#test").capsLockTip({width:"200px",text:"error"});
 */
(function($) {
	var curID = 0;//
	$.fn.extend({
		capsLockTip : function(options) {
			options = $.extend({}, $.CapsLockTip.defaults, options);
			return this.each(function() {
				new $.CapsLockTip($(this),options);
			});
		}
	});
	$.CapsLockTip = function(input,options) {
		// 设置当前实例的配置参数。
		var _this = this;
		var width=options.width;// 设置自动完成框的宽度
		width = width < $(input).width()?$(input).width():width;
		var $input = $(input).attr("curCapsLockId", curID++);
		var $div = $("#autocapsLock" + $input.attr("curCapsLockId")).length != 0 ? $("#autocapsLock"
				+ $input.attr("curCapsLockId"))
				: $("
").attr("id",
						"autocapsLock" + $input.attr("curCapsLockId")).css({
					"padding-top" : "3px",
					position : "absolute",
					"z-index" : "99999"
				}).css("width",width)
				.css("left", $input.offset().left + "px")
				.css("top", $input.offset().top + $input.offsetHeight + 3 + "px")
				.appendTo("body").text(options.text).hide();
		if(!$div.attr("class")&&options.styleClass){
			$div.addClass(options.styleClass);
		}else{
			$div.css({color : "red",
				"font-size" : "12px",
				border : "solid 1px #DBC492",
				"border-bottom-color" : "#B49366",
				"border-right-color" : "#B49366"});
		}	
		$input.bind("keypress", function(_event) {
			var e = _event || window.event;
			var kc = e.keyCode || e.which;// 按键的keyCode
			var isShift = e.shiftKey || (kc == 16) || false;// shift键是否按住
			$.fn.capsLockTip.capsLockActived = false;
			if ((kc >= 65 && kc <= 90 && !isShift)
					|| (kc >= 97 && kc <= 122 && isShift))
				$.fn.capsLockTip.capsLockActived = true;
			_this.showTips($.fn.capsLockTip.capsLockActived);
		});
		$input.bind("keydown",function(_event) {
			var e = _event || window.event;
			var kc = e.keyCode || e.which;
			if (kc == 20&& null != $.fn.capsLockTip.capsLockActived) {
				$.fn.capsLockTip.capsLockActived = !$.fn.capsLockTip.capsLockActived;
				_this.showTips($.fn.capsLockTip.capsLockActived);
				}
		});
		$input.bind("focus", function(_event) {
			if (null != $.fn.capsLockTip.capsLockActived)
				_this.showTips($.fn.capsLockTip.capsLockActived);
		});
		$input.bind("blur", function(_event) {
			_this.showTips(false);
		});
		//Show or hide the Caps Lock prompt.
		this.showTips = function(display) {
			if (display) {
				$div.show();
			} else {
				$div.hide();
			}
		};
		// Caps Lock key state
		$.fn.capsLockTip.capsLockActived = null;
	};
	$.CapsLockTip.defaults = {
			styleClass:"",//提示框样式class名称
			width:0,//提示框宽度
			text:"大写键已被锁定"//错误提示信息
	};
})(jQuery);

• jquery.capsLock.zip (1.3 KB)
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