!function(a,b,c,d){a(function(){var e=a(".wc-shipping-class-rows"),f=a(".wc-shipping-class-save"),g=c.template("wc-shipping-class-row"),h=c.template("wc-shipping-class-row-blank"),i=Backbone.Model.extend({changes:{},logChanges:function(a){var b=this.changes||{};_.each(a,function(a,c){b[c]=_.extend(b[c]||{term_id:c},a)}),this.changes=b,this.trigger("change:classes")},save:function(){_.size(this.changes)?a.post(d+(d.indexOf("?")>0?"&":"?")+"action=woocommerce_shipping_classes_save_changes",{wc_shipping_classes_nonce:b.wc_shipping_classes_nonce,changes:this.changes},this.onSaveResponse,"json"):k.trigger("saved:classes")},discardChanges:function(a){var b=this.changes||{};delete b[a],0===_.size(this.changes)&&l.clearUnloadConfirmation()},onSaveResponse:function(a,c){"success"===c&&(a.success?(k.set("classes",a.data.shipping_classes),k.trigger("change:classes"),k.changes={},k.trigger("saved:classes")):a.data?window.alert(a.data):window.alert(b.strings.save_failed)),l.unblock()}}),j=Backbone.View.extend({rowTemplate:g,initialize:function(){this.listenTo(this.model,"change:classes",this.setUnloadConfirmation),this.listenTo(this.model,"saved:classes",this.clearUnloadConfirmation),this.listenTo(this.model,"saved:classes",this.render),e.on("change",{view:this},this.updateModelOnChange),a(window).on("beforeunload",{view:this},this.unloadConfirmation),f.on("click",{view:this},this.onSubmit),a(document.body).on("click",".wc-shipping-class-add",{view:this},this.onAddNewRow),a(document.body).on("click",".wc-shipping-class-save-changes",{view:this},this.onSubmit)},block:function(){a(this.el).block({message:null,overlayCSS:{background:"#fff",opacity:.6}})},unblock:function(){a(this.el).unblock()},render:function(){var b=_.indexBy(this.model.get("classes"),"term_id"),c=this;this.$el.empty(),this.unblock(),_.size(b)?(b=_.sortBy(b,function(a){return a.name}),a.each(b,function(a,b){c.renderRow(b)})):c.$el.append(h)},renderRow:function(a){var b=this;b.$el.append(b.rowTemplate(a)),b.initRow(a)},initRow:function(b){var c=this,d=c.$el.find('tr[data-id="'+b.term_id+'"]');d.find("select").each(function(){var c=a(this).data("attribute");a(this).find('option[value="'+b[c]+'"]').prop("selected",!0)}),d.find(".view").show(),d.find(".edit").hide(),d.find(".wc-shipping-class-edit").on("click",{view:this},this.onEditRow),d.find(".wc-shipping-class-delete").on("click",{view:this},this.onDeleteRow),d.find(".editing .wc-shipping-class-edit").trigger("click"),d.find(".wc-shipping-class-cancel-edit").on("click",{view:this},this.onCancelEditRow),!0===b.editing&&(d.addClass("editing"),d.find(".wc-shipping-class-edit").trigger("click"))},onSubmit:function(a){a.data.view.block(),a.data.view.model.save(),a.preventDefault()},onAddNewRow:function(c){c.preventDefault();var d=c.data.view,e=d.model,f=_.indexBy(e.get("classes"),"term_id"),g={},h=_.size(f),i=_.extend({},b.default_class,{term_id:"new-"+h+"-"+Date.now(),editing:!0,newRow:!0});g[i.term_id]=i,e.logChanges(g),d.renderRow(i),a(".wc-shipping-classes-blank-state").remove()},onEditRow:function(b){b.preventDefault(),a(this).closest("tr").addClass("editing"),a(this).closest("tr").find(".view").hide(),a(this).closest("tr").find(".edit").show(),b.data.view.model.trigger("change:classes")},onDeleteRow:function(b){var c=b.data.view,d=c.model,e=_.indexBy(d.get("classes"),"term_id"),f={},g=a(this).closest("tr").data("id");b.preventDefault(),e[g]&&(delete e[g],f[g]=_.extend(f[g]||{},{deleted:"deleted"}),d.set("classes",e),d.logChanges(f)),c.render()},onCancelEditRow:function(b){var c=b.data.view,d=c.model,e=a(this).closest("tr"),f=a(this).closest("tr").data("id"),g=_.indexBy(d.get("classes"),"term_id");b.preventDefault(),d.discardChanges(f),g[f]&&(g[f].editing=!1,e.after(c.rowTemplate(g[f])),c.initRow(g[f])),e.remove()},setUnloadConfirmation:function(){this.needsUnloadConfirm=!0,f.removeAttr("disabled")},clearUnloadConfirmation:function(){this.needsUnloadConfirm=!1,f.attr("disabled","disabled")},unloadConfirmation:function(a){return a.data.view.needsUnloadConfirm?(a.returnValue=b.strings.unload_confirmation_msg,window.event.returnValue=b.strings.unload_confirmation_msg,b.strings.unload_confirmation_msg):void 0},updateModelOnChange:function(b){var c=b.data.view.model,d=a(b.target),e=d.closest("tr").data("id"),f=d.data("attribute"),g=d.val(),h=_.indexBy(c.get("classes"),"term_id"),i={};h[e]&&h[e][f]===g||(i[e]={},i[e][f]=g),c.logChanges(i)}}),k=new i({classes:b.classes}),l=new j({model:k,el:e});l.render()})}(jQuery,shippingClassesLocalizeScript,wp,ajaxurl);