wp-includes/js/jquery/ui.droppable.js

   1 /*
   2  * jQuery UI Droppable 1.7.1
   3  *
   4  * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
   5  * Dual licensed under the MIT (MIT-LICENSE.txt)
   6  * and GPL (GPL-LICENSE.txt) licenses.
   7  *
   8  * http://docs.jquery.com/UI/Droppables
   9  *
  10  * Depends:
  11  *      ui.core.js
  12  *      ui.draggable.js
  13  */
  14 (function(a){a.widget("ui.droppable",{_init:function(){var c=this.options,b=c.accept;this.isover=0;this.isout=1;this.options.accept=this.options.accept&&a.isFunction(this.options.accept)?this.options.accept:function(e){return e.is(b)};this.proportions={width:this.element[0].offsetWidth,height:this.element[0].offsetHeight};a.ui.ddmanager.droppables[this.options.scope]=a.ui.ddmanager.droppables[this.options.scope]||[];a.ui.ddmanager.droppables[this.options.scope].push(this);(this.options.addClasses&&this.element.addClass("ui-droppable"))},destroy:function(){var b=a.ui.ddmanager.droppables[this.options.scope];for(var c=0;c<b.length;c++){if(b[c]==this){b.splice(c,1)}}this.element.removeClass("ui-droppable ui-droppable-disabled").removeData("droppable").unbind(".droppable")},_setData:function(b,c){if(b=="accept"){this.options.accept=c&&a.isFunction(c)?c:function(e){return e.is(c)}}else{a.widget.prototype._setData.apply(this,arguments)}},_activate:function(c){var b=a.ui.ddmanager.current;if(this.options.activeClass){this.element.addClass(this.options.activeClass)}(b&&this._trigger("activate",c,this.ui(b)))},_deactivate:function(c){var b=a.ui.ddmanager.current;if(this.options.activeClass){this.element.removeClass(this.options.activeClass)}(b&&this._trigger("deactivate",c,this.ui(b)))},_over:function(c){var b=a.ui.ddmanager.current;if(!b||(b.currentItem||b.element)[0]==this.element[0]){return}if(this.options.accept.call(this.element[0],(b.currentItem||b.element))){if(this.options.hoverClass){this.element.addClass(this.options.hoverClass)}this._trigger("over",c,this.ui(b))}},_out:function(c){var b=a.ui.ddmanager.current;if(!b||(b.currentItem||b.element)[0]==this.element[0]){return}if(this.options.accept.call(this.element[0],(b.currentItem||b.element))){if(this.options.hoverClass){this.element.removeClass(this.options.hoverClass)}this._trigger("out",c,this.ui(b))}},_drop:function(c,d){var b=d||a.ui.ddmanager.current;if(!b||(b.currentItem||b.element)[0]==this.element[0]){return false}var e=false;this.element.find(":data(droppable)").not(".ui-draggable-dragging").each(function(){var f=a.data(this,"droppable");if(f.options.greedy&&a.ui.intersect(b,a.extend(f,{offset:f.element.offset()}),f.options.tolerance)){e=true;return false}});if(e){return false}if(this.options.accept.call(this.element[0],(b.currentItem||b.element))){if(this.options.activeClass){this.element.removeClass(this.options.activeClass)}if(this.options.hoverClass){this.element.removeClass(this.options.hoverClass)}this._trigger("drop",c,this.ui(b));return this.element}return false},ui:function(b){return{draggable:(b.currentItem||b.element),helper:b.helper,position:b.position,absolutePosition:b.positionAbs,offset:b.positionAbs}}});a.extend(a.ui.droppable,{version:"1.7.1",eventPrefix:"drop",defaults:{accept:"*",activeClass:false,addClasses:true,greedy:false,hoverClass:false,scope:"default",tolerance:"intersect"}});a.ui.intersect=function(q,j,o){if(!j.offset){return false}var e=(q.positionAbs||q.position.absolute).left,d=e+q.helperProportions.width,n=(q.positionAbs||q.position.absolute).top,m=n+q.helperProportions.height;var g=j.offset.left,c=g+j.proportions.width,p=j.offset.top,k=p+j.proportions.height;switch(o){case"fit":return(g<e&&d<c&&p<n&&m<k);break;case"intersect":return(g<e+(q.helperProportions.width/2)&&d-(q.helperProportions.width/2)<c&&p<n+(q.helperProportions.height/2)&&m-(q.helperProportions.height/2)<k);break;case"pointer":var h=((q.positionAbs||q.position.absolute).left+(q.clickOffset||q.offset.click).left),i=((q.positionAbs||q.position.absolute).top+(q.clickOffset||q.offset.click).top),f=a.ui.isOver(i,h,p,g,j.proportions.height,j.proportions.width);return f;break;case"touch":return((n>=p&&n<=k)||(m>=p&&m<=k)||(n<p&&m>k))&&((e>=g&&e<=c)||(d>=g&&d<=c)||(e<g&&d>c));break;default:return false;break}};a.ui.ddmanager={current:null,droppables:{"default":[]},prepareOffsets:function(e,g){var b=a.ui.ddmanager.droppables[e.options.scope];var f=g?g.type:null;var h=(e.currentItem||e.element).find(":data(droppable)").andSelf();droppablesLoop:for(var d=0;d<b.length;d++){if(b[d].options.disabled||(e&&!b[d].options.accept.call(b[d].element[0],(e.currentItem||e.element)))){continue}for(var c=0;c<h.length;c++){if(h[c]==b[d].element[0]){b[d].proportions.height=0;continue droppablesLoop}}b[d].visible=b[d].element.css("display")!="none";if(!b[d].visible){continue}b[d].offset=b[d].element.offset();b[d].proportions={width:b[d].element[0].offsetWidth,height:b[d].element[0].offsetHeight};if(f=="mousedown"){b[d]._activate.call(b[d],g)}}},drop:function(b,c){var d=false;a.each(a.ui.ddmanager.droppables[b.options.scope],function(){if(!this.options){return}if(!this.options.disabled&&this.visible&&a.ui.intersect(b,this,this.options.tolerance)){d=this._drop.call(this,c)}if(!this.options.disabled&&this.visible&&this.options.accept.call(this.element[0],(b.currentItem||b.element))){this.isout=1;this.isover=0;this._deactivate.call(this,c)}});return d},drag:function(b,c){if(b.options.refreshPositions){a.ui.ddmanager.prepareOffsets(b,c)}a.each(a.ui.ddmanager.droppables[b.options.scope],function(){if(this.options.disabled||this.greedyChild||!this.visible){return}var e=a.ui.intersect(b,this,this.options.tolerance);var g=!e&&this.isover==1?"isout":(e&&this.isover==0?"isover":null);if(!g){return}var f;if(this.options.greedy){var d=this.element.parents(":data(droppable):eq(0)");if(d.length){f=a.data(d[0],"droppable");f.greedyChild=(g=="isover"?1:0)}}if(f&&g=="isover"){f.isover=0;f.isout=1;f._out.call(f,c)}this[g]=1;this[g=="isout"?"isover":"isout"]=0;this[g=="isover"?"_over":"_out"].call(this,c);if(f&&g=="isout"){f.isout=0;f.isover=1;f._over.call(f,c)}})}}})(jQuery);