如何区分单击和双击

时间:2011-04-21 11:01:34

标签: javascript-events

我在处理程序中添加了您共享的功能,它看起来像这样:

initMouseHandling:function(){
                    var dragged = null, 
                    _mouseP,
                    selected,
                    nearest = null,
                    show = true,
                    num_console = 0,
                    timeout,
                    clicks,
                    delay = 500;


var handler =  {



single_double_click: function (element, clicked, double_click, timeout) {

$(element).observe('click', function (event) {
    ++clicks;
    if (clicks === 1) {
        var timeoutCallback = function (event) {
            if (clicks === 1) {
                clicked.call(this, event);
            } else {
                double_click.call(this, event);
            }
            clicks = 0;
        };
        timeoutCallback.bind(this, event).delay(timeout / 1000);
    }
}.bind(this));
return false;
},

clicked:function(e){
...
},
dragged:function(e){
...
},
dropped:function(e){
...
},
over_edge:function(e){
...
},
over_node:function(e){
...
},
double_click:function(e){
...
}}

canvas.mousemove(handler.over_node);
canvas.mousemove(handler.over_edge);
canvas.mousedown(handler.single_double_click);
//canvas.mousedown(handler.clicked);
//canvas.dblclick(handler.double_click);
}

它说“Uncaught TypeError:Object [object Object]没有方法'observe'”,无论使用$(canvas)还是$(window),就像我在其他地方看到的那样......

我不知道是否应该将处理程序作为参数引入,为什么我不能使用“观察”,如果对于像我这样的情况我应该像这样调用我的处理程序:

clicked.call(this, event);
double_click.call(this, event);           

有什么建议吗?

1 个答案:

答案 0 :(得分:0)

您是否查看了jQuery的dblclick