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   1  window.customElements.define("joomla-toolbar-button",class extends HTMLElement{get task(){return this.getAttribute("task")}get listSelection(){return this.hasAttribute("list-selection")}get form(){return this.getAttribute("form")}get formValidation(){return this.hasAttribute("form-validation")}get confirmMessage(){return this.getAttribute("confirm-message")}constructor(){if(super(),!Joomla)throw new Error("Joomla API is not properly initiated");this.onChange=this.onChange.bind(this),this.executeTask=this.executeTask.bind(this)}connectedCallback(){this.buttonElement=this.querySelector("button, a"),this.buttonElement.addEventListener("click",this.executeTask);const t=this.form||"adminForm";if(this.formElement=document.getElementById(t),this.disabled=!1,this.listSelection&&this.setDisabled(!0),this.listSelection){if(!this.formElement)throw new Error(`The form "$t}" is required to perform the task, but the form was not found on the page.`);this.formElement.boxchecked.addEventListener("change",this.onChange)}}disconnectedCallback(){this.formElement.boxchecked&&this.formElement.boxchecked.removeEventListener("change",this.onChange),this.buttonElement.removeEventListener("click",this.executeTask)}onChange({target:t}){this.setDisabled(t.value<1)}setDisabled(t){this.disabled=!!t,this.buttonElement&&(this.disabled?"BUTTON"===this.buttonElement.nodeName?this.buttonElement.disabled=!0:this.buttonElement.classList.add("disabled"):"BUTTON"===this.buttonElement.nodeName?this.buttonElement.disabled=!1:this.buttonElement.classList.remove("disabled"))}executeTask(){return!this.disabled&&(!(this.confirmMessage&&!confirm(this.confirmMessage))&&(this.task&&Joomla.submitbutton(this.task,this.form,this.formValidation),!0))}});