jquery-ui-1.7.2.custom.min.js

jQuery即学即用

 *
 * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Sortables
 *
 * Depends:
 *	ui.core.js
 */
(function(a){a.widget("ui.sortable",a.extend({},a.ui.mouse,{_init:function(){var b=this.options;this.containerCache={};this.element.addClass("ui-sortable");this.refresh();this.floating=this.items.length?(/left|right/).test(this.items[0].item.css("float")):false;this.offset=this.element.offset();this._mouseInit()},destroy:function(){this.element.removeClass("ui-sortable ui-sortable-disabled").removeData("sortable").unbind(".sortable");this._mouseDestroy();for(var b=this.items.length-1;b>=0;b--){this.items[b].item.removeData("sortable-item")}},_mouseCapture:function(e,f){if(this.reverting){return false}if(this.options.disabled||this.options.type=="static"){return false}this._refreshItems(e);var d=null,c=this,b=a(e.target).parents().each(function(){if(a.data(this,"sortable-item")==c){d=a(this);return false}});if(a.data(e.target,"sortable-item")==c){d=a(e.target)}if(!d){return false}if(this.options.handle&&!f){var g=false;a(this.options.handle,d).find("*").andSelf().each(function(){if(this==e.target){g=true}});if(!g){return false}}this.currentItem=d;this._removeCurrentsFromItems();return true},_mouseStart:function(e,f,b){var g=this.options,c=this;this.currentContainer=this;this.refreshPositions();this.helper=this._createHelper(e);this._cacheHelperProportions();this._cacheMargins();this.scrollParent=this.helper.scrollParent();this.offset=this.currentItem.offset();this.offset={top:this.offset.top-this.margins.top,left:this.offset.left-this.margins.left};this.helper.css("position","absolute");this.cssPosition=this.helper.css("position");a.extend(this.offset,{click:{left:e.pageX-this.offset.left,top:e.pageY-this.offset.top},parent:this._getParentOffset(),relative:this._getRelativeOffset()});this.originalPosition=this._generatePosition(e);this.originalPageX=e.pageX;this.originalPageY=e.pageY;if(g.cursorAt){this._adjustOffsetFromHelper(g.cursorAt)}this.domPosition={prev:this.currentItem.prev()[0],parent:this.currentItem.parent()[0]};if(this.helper[0]!=this.currentItem[0]){this.currentItem.hide()}this._createPlaceholder();if(g.containment){this._setContainment()}if(g.cursor){if(a("body").css("cursor")){this._storedCursor=a("body").css("cursor")}a("body").css("cursor",g.cursor)}if(g.opacity){if(this.helper.css("opacity")){this._storedOpacity=this.helper.css("opacity")}this.helper.css("opacity",g.opacity)}if(g.zIndex){if(this.helper.css("zIndex")){this._storedZIndex=this.helper.css("zIndex")}this.helper.css("zIndex",g.zIndex)}if(this.scrollParent[0]!=document&&this.scrollParent[0].tagName!="HTML"){this.overflowOffset=this.scrollParent.offset()}this._trigger("start",e,this._uiHash());if(!this._preserveHelperProportions){this._cacheHelperProportions()}if(!b){for(var d=this.containers.length-1;d>=0;d--){this.containers[d]._trigger("activate",e,c._uiHash(this))}}if(a.ui.ddmanager){a.ui.ddmanager.current=this}if(a.ui.ddmanager&&!g.dropBehaviour){a.ui.ddmanager.prepareOffsets(this,e)}this.dragging=true;this.helper.addClass("ui-sortable-helper");this._mouseDrag(e);return true},_mouseDrag:function(f){this.position=this._generatePosition(f);this.positionAbs=this._convertPositionTo("absolute");if(!this.lastPositionAbs){this.lastPositionAbs=this.positionAbs}if(this.options.scroll){var g=this.options,b=false;if(this.scrollParent[0]!=document&&this.scrollParent[0].tagName!="HTML"){if((this.overflowOffset.top+this.scrollParent[0].offsetHeight)-f.pageY<g.scrollSensitivity){this.scrollParent[0].scrollTop=b=this.scrollParent[0].scrollTop+g.scrollSpeed}else{if(f.pageY-this.overflowOffset.top<g.scrollSensitivity){this.scrollParent[0].scrollTop=b=this.scrollParent[0].scrollTop-g.scrollSpeed}}if((this.overflowOffset.left+this.scrollParent[0].offsetWidth)-f.pageX<g.scrollSensitivity){this.scrollParent[0].scrollLeft=b=this.scrollParent[0].scrollLeft+g.scrollSpeed}else{if(f.pageX-this.overflowOffset.left<g.scrollSensitivity){this.scrollParent[0].scrollLeft=b=this.scrollParent[0].scrollLeft-g.scrollSpeed}}}else{if(f.pageY-a(document).scrollTop()<g.scrollSensitivity){b=a(document).scrollTop(a(document).scrollTop()-g.scrollSpeed)}else{if(a(window).height()-(f.pageY-a(document).scrollTop())<g.scrollSensitivity){b=a(document).scrollTop(a(document).scrollTop()+g.scrollSpeed)}}if(f.pageX-a(document).scrollLeft()<g.scrollSensitivity){b=a(document).scrollLeft(a(document).scrollLeft()-g.scrollSpeed)}else{if(a(window).width()-(f.pageX-a(document).scrollLeft())<g.scrollSensitivity){b=a(document).scrollLeft(a(document).scrollLeft()+g.scrollSpeed)}}}if(b!==false&&a.ui.ddmanager&&!g.dropBehaviour){a.ui.ddmanager.prepareOffsets(this,f)}}this.positionAbs=this._convertPositionTo("absolute");if(!this.options.axis||this.options.axis!="y"){this.helper[0].style.left=this.position.left+"px"}if(!this.options.axis||this.options.axis!="x"){this.helper[0].style.top=this.position.top+"px"}for(var d=this.items.length-1;d>=0;d--){var e=this.items[d],c=e.item[0],h=this._intersectsWithPointer(e);if(!h){continue}if(c!=this.currentItem[0]&&this.placeholder[h==1?"next":"prev"]()[0]!=c&&!a.ui.contains(this.placeholder[0],c)&&(this.options.type=="semi-dynamic"?!a.ui.contains(this.element[0],c):true)){this.direction=h==1?"down":"up";if(this.options.tolerance=="pointer"||this._intersectsWithSides(e)){this._rearrange(f,e)}else{break}this._trigger("change",f,this._uiHash());break}}this._contactContainers(f);if(a.ui.ddmanager){a.ui.ddmanager.drag(this,f)}this._trigger("sort",f,this._uiHash());this.lastPositionAbs=this.positionAbs;return false},_mouseStop:function(c,d){if(!c){return}if(a.ui.ddmanager&&!this.options.dropBehaviour){a.ui.ddmanager.drop(this,c)}if(this.options.revert){var b=this;var e=b.placeholder.offset();b.reverting=true;a(this.helper).animate({left:e.left-this.offset.parent.left-b.margins.left+(this.offsetParent[0]==document.body?0:this.offsetParent[0].scrollLeft),top:e.top-this.offset.parent.top-b.margins.top+(this.offsetParent[0]==document.body?0:this.offsetParent[0].scrollTop)},parseInt(this.options.revert,10)||500,function(){b._clear(c)})}else{this._clear(c,d)}return false},cancel:function(){var b=this;if(this.dragging){this._mouseUp();if(this.options.helper=="original"){this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper")}else{this.currentItem.show()}for(var c=this.containers.length-1;c>=0;c--){this.containers[c]._trigger("deactivate",null,b._uiHash(this));if(this.containers[c].containerCache.over){this.containers[c]._trigger("out",null,b._uiHash(this));this.containers[c].containerCache.over=0}}}if(this.placeholder[0].parentNode){this.placeholder[0].parentNode.removeChild(this.placeholder[0])}if(this.options.helper!="original"&&this.helper&&this.helper[0].parentNode){this.helper.remove()}a.extend(this,{helper:null,dragging:false,reverting:false,_noFinalSort:null});if(this.domPosition.prev){a(this.domPosition.prev).after(this.currentItem)}else{a(this.domPosition.parent).prepend(this.currentItem)}return true},serialize:function(d){var b=this._getItemsAsjQuery(d&&d.connected);var c=[];d=d||{};a(b).each(function(){var e=(a(d.item||this).attr(d.attribute||"id")||"").match(d.expression||(/(.+)[-=_](.+)/));if(e){c.push((d.key||e[1]+"[]")+"="+(d.key&&d.expression?e[1]:e[2]))}});return c.join("&")},toArray:function(d){var b=this._getItemsAsjQuery(d&&d.connected);var c=[];d=d||{};b.each(function(){c.push(a(d.item||this).attr(d.attribute||"id")||"")});return c},_intersectsWith:function(m){var e=this.positionAbs.left,d=e+this.helperProportions.width,k=this.positionAbs.top,j=k+this.helperProportions.height;var f=m.left,c=f+m.width,n=m.top,i=n+m.height;var o=this.offset.click.top,h=this.offset.click.left;var g=(k+o)>n&&(k+o)<i&&(e+h)>f&&(e+h)<c;if(this.options.tolerance=="pointer"||this.options.forcePointerForContainers||(this.options.tolerance!="pointer"&&this.helperProportions[this.floating?"width":"height"]>m[this.floating?"width":"height"])){return g}else{return(f<e+(this.helperProportions.width/2)&&d-(this.helperProportions.width/2)<c&&n<k+(this.helperProportions.height/2)&&j-(this.helperProportions.height/2)<i)}},_intersectsWithPointer:function(d){var e=a.ui.isOverAxis(this.positionAbs.top+this.offset.click.top,d.top,d.height),c=a.ui.isOverAxis(this.positionAbs.left+this.offset.click.left,d.left,d.width),g=e&&c,b=this._getDragVerticalDirection(),f=this._getDragHorizontalDirection();if(!g){return false}return this.floating?(((f&&f=="right")||b=="down")?2:1):(b&&(b=="down"?2:1))},_intersectsWithSides:function(e){var c=a.ui.isOverAxis(this.positionAbs.top+this.offset.click.top,e.top+(e.height/2),e.height),d=a.ui.isOverAxis(this.positionAbs.left+this.offset.click.left,e.left+(e.width/2),e.width),b=this._getDragVerticalDirection(),f=this._getDragHorizontalDirection();if(this.floating&&f){return((f=="right"&&d)||(f=="left"&&!d))}else{return b&&((b=="down"&&c)||(b=="up"&&!c))}},_getDragVerticalDirection:function(){var b=this.positionAbs.top-this.lastPositionAbs.top;return b!=0&&(b>0?"down":"up")},_getDragHorizontalDirection:function(){var b=this.positionAbs.left-this.lastPositionAbs.left;return b!=0&&(b>0?"right":"left")},refresh:function(b){this._refreshItems(b);this.refreshPositions()},_connectWith:function(){var b=this.options;return b.connectWith.constructor==String?[b.connectWith]:b.connectWith},_getItemsAsjQuery:function(b){var l=this;var g=[];var e=[];var h=this._connectWith();if(h&&b){for(var d=h.length-1;d>=0;d--){var k=a(h[d]);for(var c=k.length-1;c>=0;c--){var f=a.data(k[c],"sortable");if(f&&f!=this&&!f.options.disabled){e.push([a.isFunction(f.options.items)?f.options.items.call(f.element):a(f.options.items,f.element).not(".ui-sortable-helper"),f])}}}}e.push([a.isFunction(this.options.items)?this.options.items.call(this.element,null,{options:this.options,item:this.currentItem}):a(this.options.items,this.element).not(".ui-sortable-helper"),this]);for(var d=e.length-1;d>=0;d--){e[d][0].each(function(){g.push(this)})}return a(g)},_removeCurrentsFromItems:function(){var d=this.currentItem.find(":data(sortable-item)");for(var c=0;c<this.items.length;c++){for(var b=0;b<d.length;b++){if(d[b]==this.items[c].item[0]){this.items.splice(c,1)}}}},_refreshItems:function(b){this.items=[];this.containers=[this];var h=this.items;var p=this;var f=[[a.isFunction(this.options.items)?this.options.items.call(this.element[0],b,{item:this.currentItem}):a(this.options.items,this.element),this]];var l=this._connectWith();if(l){for(var e=l.length-1;e>=0;e--){var m=a(l[e]);for(var d=m.length-1;d>=0;d--){var g=a.data(m[d],"sortable");if(g&&g!=this&&!g.options.disable