单击并拖动滚动时禁用链接(jQuery)

Question

请参阅小提琴:http://jsfiddle.net/mrcarllister/Z2GjN/

基本上,当您单击并拖动锚点/链接时,我点击拖动滚动功能除外.

它似乎只是当鼠标光标保持在释放链接上时,遵循URL(例如,如果你拖得足够远,链接离开窗口,那就可以正常工作.)

;(function($){ 

$.fn.scrollsync = function( options ){
var settings = $.extend(
        {   
            targetSelector:':first',
            axis: 'xy'
        },options || {});


function scrollHandler(event) {
    if (event.data.xaxis){
        event.data.followers.scrollLeft(event.data.target.scrollLeft());
    }
    if (event.data.yaxis){
        event.data.followers.scrollTop(event.data.target.scrollTop());
    }
}

settings.target = this.filter(settings.targetSelector).filter(':first');
settings.followers=this.not(settings.target); // the rest of elements

settings.xaxis= (settings.axis=='xy' || settings.axis=='x') ? true : false; 
settings.yaxis= (settings.axis=='xy' || settings.axis=='y') ? true : false;
if (!settings.xaxis && !settings.yaxis) return;  

settings.target.bind('scroll', settings, scrollHandler);

};

})( jQuery ); 

;(function($){




$.fn.dragscrollable = function( options ){

var settings = $.extend(
    {   
        dragSelector:'>:first',
        acceptPropagatedEvent: true,
        preventDefault: true
    },options || {});


var dragscroll= {
    mouseDownHandler : function(event) {

        if (event.which!=1 ||
            (!event.data.acceptPropagatedEvent && event.target != this)){ 
            return false; 
        }


        event.data.lastCoord = {left: event.clientX, top: event.clientY}; 


        $.event.add( document, "mouseup", 
                     dragscroll.mouseUpHandler, event.data );
        $.event.add( document, "mousemove", 
                     dragscroll.mouseMoveHandler, event.data );
        if (event.data.preventDefault) {
            event.preventDefault();
            return false;
        }
    },
    mouseMoveHandler : function(event) { 


        var delta = {left: (event.clientX - event.data.lastCoord.left),
                     top: (event.clientY - event.data.lastCoord.top)};

        event.data.scrollable.scrollLeft(
                        event.data.scrollable.scrollLeft() - delta.left);
        event.data.scrollable.scrollTop(
                        event.data.scrollable.scrollTop() - delta.top);


        event.data.lastCoord={left: event.clientX, top: event.clientY}
        if (event.data.preventDefault) {
            event.preventDefault();
            return false;
        }

    },
    mouseUpHandler : function(event) { 
        $.event.remove( document, "mousemove", dragscroll.mouseMoveHandler);
        $.event.remove( document, "mouseup", dragscroll.mouseUpHandler);
        if (event.data.preventDefault) {
            event.preventDefault();
            return false;
        }
    }
}


this.each(function() {

    var data = {scrollable : $(this),
                acceptPropagatedEvent : settings.acceptPropagatedEvent,
                preventDefault : settings.preventDefault }

    $(this).find(settings.dragSelector).
                    bind('mousedown', data, dragscroll.mouseDownHandler);
});
}; 

})( jQuery ); 

​

我很确定我必须'回归:假;' 对于锚点但我不确定如何在拖动/滚动时执行此操作.

任何帮助,将不胜感激.

编辑 - 伊恩的建议有效但我只需要几个补救:

1. 只能向上和向下滚动(不是向左或向右)
2. 限制为content/div大小 - 并且不再滚动.

--- >>>>>>>>>>>>>

干杯,

卡尔

Answer 1

好吧，这里的问题是，它使用鼠标向上和向下来工作，所以您可以永久禁用锚点，或者它会工作，所以您需要有一些业务逻辑来说明它何时打开和关闭。如果你想编辑dragscrollable，把它放在代码中就可以了

http://jsfiddle.net/Z2GjN/33/

我添加了

event.data.initCoord = event.data.lastCoord

到 mouseDownHandler 并添加

        if(event.data.lastCoord != event.data.initCoord){
            obj = $(this);
            $('a', obj).on('click', function(event) {
             event.preventDefault();                      
            });
            setTimeout(function(){$('a', obj).off('click'); },300);
        }

到 mouseUpHandler 并且我打开了 Preventdefault

$('#viewport, #inner').
        dragscrollable({dragSelector: '.dragger:first', preventDefault: true});