jquery：秒表

Question

我正在使用我在此处找到的stopwatch代码： http://www.kellishaver.com/projects/stopwatch/

(function($) {
    $.fn.stopwatch = function() {
        var clock = this;
        var timer = 0;

        clock.addClass('stopwatch');

        //console.log(clock);

        // This is bit messy, but IE is a crybaby and must be coddled. 
        clock.html('<div class="display"><span class="hr">00</span>:<span class="min">00</span>:<span class="sec">00</span></div>');
        clock.append('<input type="button" class="start" value="Start" />');
        clock.append('<input type="button" class="stop" value="Stop" />');
        clock.append('<input type="button" class="reset" value="Reset" />');

        //console.log(clock.html());

        // We have to do some searching, so we'll do it here, so we only have to do it once.
        var h = clock.find('.hr');
        var m = clock.find('.min');
        var s = clock.find('.sec');
        var start = clock.find('.start');
        var stop = clock.find('.stop');
        var reset = clock.find('.reset');

        stop.hide();

        start.bind('click', function() {
            timer = setInterval(do_time, 1000);
            stop.show();
            start.hide();
        });

        stop.bind('click', function() {
            clearInterval(timer);
            timer = 0;
            start.show();
            stop.hide();
        });

        reset.bind('click', function() {
            clearInterval(timer);
            timer = 0;
            h.html("00");
            m.html("00");
            s.html("00");
            stop.hide();
            start.show();
        });

        function do_time() {
            // parseInt() doesn't work here...
            hour = parseFloat(h.text());
            minute = parseFloat(m.text());
            second = parseFloat(s.text());

            second++;

            if(second > 59) {
                second = 0;
                minute = minute + 1;
            }
            if(minute > 59) {
                minute = 0;
                hour = hour + 1;
            }

            h.html("0".substring(hour >= 10) + hour);
            m.html("0".substring(minute >= 10) + minute);
            s.html("0".substring(second >= 10) + second);
        }
    };
})(jQuery);

我这样使用它：

<script type="text/javascript">
    $('#clock1').stopwatch();
</script>

它工作正常，我可以使用停止按钮停止它。但是我希望能够使用javascript以编程方式停止它。像这样：

<script type="text/javascript">
    $('#clock1').stop();
</script>

我创建了stop函数，但我无法访问timer中定义的stopwatch() var。我该怎么办？

Answer 1

怎么样：

$('#clock1').find('.stop').trigger('click');

Answer 2

您可以在代码中添加一个小API，并使用$.data附加它：

var api = {
    stop: function() {
        stop.click(); // this should probably be improved, but you get the idea
    }
 };
 $(clock).data('stopwatch', api);

然后使用：

$('#clock1').data('stopwatch').stop();

您还可以使用相同的逻辑将reset和start函数添加到API。这里的一件好事是，您可以在以后改善咖啡休息时间的执行代码，而无需改变外部程序使用API​​的方式。