dropdown.js

/* jdf-1.0.0/ dropdown.js Date:2017-02-09 17:08:54 */
!function(a){a.ui.define("dropdown",{options:{hasCssLink:!1,baseVersion:"1.0.0",cssLinkVersion:"1.0.0",item:"ui-dropdown-item",trigger:!1,current:"ui-dropdown-hover",bodyClass:"ui-dropdown-bd",subBodyClass:"ui-dropdown-sub",topspeed:!1,boundary:10,enterDelay:0,leaveDelay:0,zIndex:1e3,align:"bottom",left:null,top:null,submenuLeft:0,submenuTop:0,onchange:null,onmouseleave:null},init:function(){this.mouseLocs=[],this.lastDelayLoc=null,this._create(),this.bind()},_create:function(){var a=this.options;this.item=a.trigger?this.el:this.el.find("."+a.item),this.body=this.el.find("."+a.bodyClass);var b=a.top;var c=a.left;"bottom"==a.align&&null==a.top&&(a.top=this.item.outerHeight()),"right"==a.align&&(a.top=0,null==a.left&&(a.left=this.item.outerWidth())),(null!=b||null!=c)&&this.body.css({position:"absolute",top:a.top,left:a.left,zIndex:a.zIndex}),this.el.find("."+a.subBodyClass).css({zIndex:a.zIndex+1}),this.bodyOuterWidth=this.body.outerWidth(),this.bodyBorderWidth=2*this.getStyle(this.body[0],"borderWidth")},bind:function(){var b=this;var c=this.options;var d=!1;var e,f;var g=3;var h=null;var i=null;var j=!1;this.el.bind("mouseenter",function(){clearTimeout(e)}),this.el.bind("mouseleave",function(){d&&(e=setTimeout(function(){b.removeClass()},c.leaveDelay)),c.onmouseleave&&c.onmouseleave(a(this)),h=null}),this.item.bind("mouseenter",function(){if(j)return!1;var e=a(this);var g=function(){j=!0,h=e.index(),b.removeClass(),e.addClass(c.current),d=!0,c.onchange&&c.onchange(e)};f=setTimeout(function(){0==b.topspeed(e)&&(g(),clearTimeout(i))},c.enterDelay),c.topspeed&&(i=setTimeout(function(){h!=e.index()&&g()},700))}),this.item.bind("mouseleave",function(){clearTimeout(f),clearTimeout(i),j=!1}),this.el.find("."+c.subBodyClass).bind("mouseenter",function(){var d=b.bodyOuterWidth-b.bodyBorderWidth+c.submenuLeft;var e=b.getStyle(a(this)[0],"paddingLeft");d=a.browser.isIE6()?d-e:d;var f=0+c.submenuTop;a(this).find("."+c.bodyClass).show().css({left:d,top:f})}).bind("mouseleave",function(){a(this).find("."+c.bodyClass).hide()}),c.topspeed&&a(document).mousemove(function(a){b.mouseLocs.push({x:a.pageX,y:a.pageY}),b.mouseLocs.length>g&&b.mouseLocs.shift()})},removeClass:function(){this.item.removeClass(this.options.current)},getStyle:function(a,b){if(a){var c=window.getComputedStyle?window.getComputedStyle(a,null)[b]:a.currentStyle[b];return c=parseInt(c),c||(c=0),c}},topspeed:function(){var a=this.options;if(!a.topspeed)return 0;var b=this.el;var c=b.offset(),d={x:c.left,y:c.top},e={x:c.left+b.outerWidth(),y:d.y},f={x:c.left,y:c.top+b.outerHeight()},g={x:c.left+b.outerWidth(),y:f.y};if(loc=this.mouseLocs[this.mouseLocs.length-1],prevLoc=this.mouseLocs[0],!loc)return 0;if(prevLoc||(prevLoc=loc),prevLoc.x<c.left||prevLoc.x>g.x||prevLoc.y<c.top||prevLoc.y>g.y)return 0;if(this.lastDelayLoc&&loc.x==this.lastDelayLoc.x&&loc.y==this.lastDelayLoc.y)return 0;function h(a,b){return(b.y-a.y)/(b.x-a.x)}var i=e,j=g;var k=h(loc,i),l=h(prevLoc,i),m=h(loc,j),n=h(prevLoc,j);return l>k&&m>n?prevLoc.x-d.x<a.boundary?0:(this.lastDelayLoc=loc,300):(this.lastDelayLoc=null,0)}})}(jQuery);