28 lines
5.6 KiB
JavaScript
28 lines
5.6 KiB
JavaScript
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/*
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* jQuery UI Droppable 1.8.7
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*
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* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
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* Dual licensed under the MIT or GPL Version 2 licenses.
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* http://jquery.org/license
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*
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* http://docs.jquery.com/UI/Droppables
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*
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* Depends:
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* jquery.ui.core.js
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* jquery.ui.widget.js
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* jquery.ui.mouse.js
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* jquery.ui.draggable.js
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*/
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(function(d){d.widget("ui.droppable",{widgetEventPrefix:"drop",options:{accept:"*",activeClass:false,addClasses:true,greedy:false,hoverClass:false,scope:"default",tolerance:"intersect"},_create:function(){var a=this.options,b=a.accept;this.isover=0;this.isout=1;this.accept=d.isFunction(b)?b:function(c){return c.is(b)};this.proportions={width:this.element[0].offsetWidth,height:this.element[0].offsetHeight};d.ui.ddmanager.droppables[a.scope]=d.ui.ddmanager.droppables[a.scope]||[];d.ui.ddmanager.droppables[a.scope].push(this);
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a.addClasses&&this.element.addClass("ui-droppable")},destroy:function(){for(var a=d.ui.ddmanager.droppables[this.options.scope],b=0;b<a.length;b++)a[b]==this&&a.splice(b,1);this.element.removeClass("ui-droppable ui-droppable-disabled").removeData("droppable").unbind(".droppable");return this},_setOption:function(a,b){if(a=="accept")this.accept=d.isFunction(b)?b:function(c){return c.is(b)};d.Widget.prototype._setOption.apply(this,arguments)},_activate:function(a){var b=d.ui.ddmanager.current;this.options.activeClass&&
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this.element.addClass(this.options.activeClass);b&&this._trigger("activate",a,this.ui(b))},_deactivate:function(a){var b=d.ui.ddmanager.current;this.options.activeClass&&this.element.removeClass(this.options.activeClass);b&&this._trigger("deactivate",a,this.ui(b))},_over:function(a){var b=d.ui.ddmanager.current;if(!(!b||(b.currentItem||b.element)[0]==this.element[0]))if(this.accept.call(this.element[0],b.currentItem||b.element)){this.options.hoverClass&&this.element.addClass(this.options.hoverClass);
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this._trigger("over",a,this.ui(b))}},_out:function(a){var b=d.ui.ddmanager.current;if(!(!b||(b.currentItem||b.element)[0]==this.element[0]))if(this.accept.call(this.element[0],b.currentItem||b.element)){this.options.hoverClass&&this.element.removeClass(this.options.hoverClass);this._trigger("out",a,this.ui(b))}},_drop:function(a,b){var c=b||d.ui.ddmanager.current;if(!c||(c.currentItem||c.element)[0]==this.element[0])return false;var e=false;this.element.find(":data(droppable)").not(".ui-draggable-dragging").each(function(){var g=
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d.data(this,"droppable");if(g.options.greedy&&!g.options.disabled&&g.options.scope==c.options.scope&&g.accept.call(g.element[0],c.currentItem||c.element)&&d.ui.intersect(c,d.extend(g,{offset:g.element.offset()}),g.options.tolerance)){e=true;return false}});if(e)return false;if(this.accept.call(this.element[0],c.currentItem||c.element)){this.options.activeClass&&this.element.removeClass(this.options.activeClass);this.options.hoverClass&&this.element.removeClass(this.options.hoverClass);this._trigger("drop",
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a,this.ui(c));return this.element}return false},ui:function(a){return{draggable:a.currentItem||a.element,helper:a.helper,position:a.position,offset:a.positionAbs}}});d.extend(d.ui.droppable,{version:"1.8.7"});d.ui.intersect=function(a,b,c){if(!b.offset)return false;var e=(a.positionAbs||a.position.absolute).left,g=e+a.helperProportions.width,f=(a.positionAbs||a.position.absolute).top,h=f+a.helperProportions.height,i=b.offset.left,k=i+b.proportions.width,j=b.offset.top,l=j+b.proportions.height;
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switch(c){case "fit":return i<=e&&g<=k&&j<=f&&h<=l;case "intersect":return i<e+a.helperProportions.width/2&&g-a.helperProportions.width/2<k&&j<f+a.helperProportions.height/2&&h-a.helperProportions.height/2<l;case "pointer":return d.ui.isOver((a.positionAbs||a.position.absolute).top+(a.clickOffset||a.offset.click).top,(a.positionAbs||a.position.absolute).left+(a.clickOffset||a.offset.click).left,j,i,b.proportions.height,b.proportions.width);case "touch":return(f>=j&&f<=l||h>=j&&h<=l||f<j&&h>l)&&(e>=
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i&&e<=k||g>=i&&g<=k||e<i&&g>k);default:return false}};d.ui.ddmanager={current:null,droppables:{"default":[]},prepareOffsets:function(a,b){var c=d.ui.ddmanager.droppables[a.options.scope]||[],e=b?b.type:null,g=(a.currentItem||a.element).find(":data(droppable)").andSelf(),f=0;a:for(;f<c.length;f++)if(!(c[f].options.disabled||a&&!c[f].accept.call(c[f].element[0],a.currentItem||a.element))){for(var h=0;h<g.length;h++)if(g[h]==c[f].element[0]){c[f].proportions.height=0;continue a}c[f].visible=c[f].element.css("display")!=
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"none";if(c[f].visible){c[f].offset=c[f].element.offset();c[f].proportions={width:c[f].element[0].offsetWidth,height:c[f].element[0].offsetHeight};e=="mousedown"&&c[f]._activate.call(c[f],b)}}},drop:function(a,b){var c=false;d.each(d.ui.ddmanager.droppables[a.options.scope]||[],function(){if(this.options){if(!this.options.disabled&&this.visible&&d.ui.intersect(a,this,this.options.tolerance))c=c||this._drop.call(this,b);if(!this.options.disabled&&this.visible&&this.accept.call(this.element[0],a.currentItem||
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a.element)){this.isout=1;this.isover=0;this._deactivate.call(this,b)}}});return c},drag:function(a,b){a.options.refreshPositions&&d.ui.ddmanager.prepareOffsets(a,b);d.each(d.ui.ddmanager.droppables[a.options.scope]||[],function(){if(!(this.options.disabled||this.greedyChild||!this.visible)){var c=d.ui.intersect(a,this,this.options.tolerance);if(c=!c&&this.isover==1?"isout":c&&this.isover==0?"isover":null){var e;if(this.options.greedy){var g=this.element.parents(":data(droppable):eq(0)");if(g.length){e=
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d.data(g[0],"droppable");e.greedyChild=c=="isover"?1:0}}if(e&&c=="isover"){e.isover=0;e.isout=1;e._out.call(e,b)}this[c]=1;this[c=="isout"?"isover":"isout"]=0;this[c=="isover"?"_over":"_out"].call(this,b);if(e&&c=="isout"){e.isout=0;e.isover=1;e._over.call(e,b)}}}})}}})(jQuery);
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