added drop support for importing methods

ccp/js/methodeditorcontroller.js

@@ -535,13 +535,21 @@ class CCPMethodEditorController extends HTMLElement{
     })
     
     this.#rootdoc.addEventListener("drop", ev=>{
-      if(ev.dataTransfer && ev.dataTransfer.getData('text/plain+ccpmethod')){
+      if(ev.dataTransfer && ev.dataTransfer.files.length === 0){
+	    if(ev.dataTransfer.getData('text/plain+ccpmethod')){
 		  const method = JSON.parse(ev.dataTransfer.getData('application/json+ccpmethod'))
 		  ev.stopImmediatePropagation()
 		  ev.preventDefault()
 		  ev.stopPropagation()
 		  this.cloneOrEditMethod(method)
 	    }
+	  } else {
+	  	const files = Array.prototype.slice.call(ev.dataTransfer.files)
+        const jsons = files.filter(f=>f.type === "application/json")
+        if(confirm("Confirm import of method files?")){
+          this.importMethodsfiles)
+        }
+	  }
     })
     
     this.#rootdoc.addEventListener("dragover", ev=>{

ccp/js/methodlistcontroller2.js

@@ -194,10 +194,47 @@ class CCPMethodList2 extends HTMLElement{
       }, {})
     }
     
+	importMethods(files){
+		if(files && files.length) {
+		  let formdata = new FormData();
+		  files.reduce((formdata, f)=>{
+			formdata.append("files[]", f)
+			return formdata
+		  }, formdata)
+		  this.#boot.secureFetch(`${this.#serviceurl}/methods`, { body: formdata, method : "POST"})
+		  .then(reply=>{
+			if (reply.status !== 200) {
+			  throw "Unable to import" 
+			}else return reply.text()
+		  }).then(data=>{
+			this.refreshExecutions()
+		  }).catch(err=>{ alert(err) })
+		}
+    }
+    
     #process_list_bss = {
       template : "#PROCESS_LIST_TEMPLATE",
       target : "ul[name=process_category_list]",
       "in" : this,
+      on_dragover : (ev)=>{
+		ev.preventDefault()
+	  },
+	  on_dragenter : (ev)=>{
+	    ev.target.classList.toggle("border-info")
+	  },
+	  on_dragleave : (ev)=>{
+		ev.target.classList.toggle("border-info")
+	  },
+	  on_drop : (ev)=>{
+		  if(ev.dataTransfer && ev.dataTransfer.files && ev.dataTransfer.files.length){
+		    const files = Array.prototype.slice.call(ev.dataTransfer.files)
+		    const zips = files.filter(f=>f.type === "application/json")
+		    if(confirm("Confirm import of method files?")){
+		      this.importMethods(files)
+		    }
+		  }
+		  ev.target.classList.toggle("border-info")
+	  },
       recurse : [
         {
           target : "li",