Work on LinkEntry

- fix missing app select
- add clear button
- use request() instead of json() to query server
- add optional class property to SelectOption
- move cleaning select options to its own function so we can use it anywhere
- Use separate render to keep local / remote options separate.  Local options stay in select_options.

api/js/etemplate/Et2Link/Et2LinkEntry.ts

@@ -69,7 +69,10 @@ export class Et2LinkEntry extends Et2InputWidget(FormControlMixin(ValidateMixin(
 			app: () =>
 			{
 				const app = <Et2LinkAppSelect>document.createElement("et2-link-apps")
-				app.only_app = this.__only_app;
+				if(this.__only_app)
+				{
+					app.only_app = this.__only_app;
+				}
 				return app;
 			},
 			select: () =>
@@ -105,6 +108,7 @@ export class Et2LinkEntry extends Et2InputWidget(FormControlMixin(ValidateMixin(
 
 	protected __only_app : string;
 	protected __app : string;
+	protected __value : LinkEntry | string | number;
 
 	set only_app(app)
 	{
@@ -121,8 +125,14 @@ export class Et2LinkEntry extends Et2InputWidget(FormControlMixin(ValidateMixin(
 	set app(app)
 	{
 		this.__app = app;
-		if (this._appNode) this._appNode.value = app;
-		if (this._searchNode) this._searchNode.app = app;
+		if(this._appNode)
+		{
+			this._appNode.value = app;
+		}
+		if(this._searchNode)
+		{
+			this._searchNode.app = app;
+		}
 	}
 
 	get app()
@@ -156,8 +166,6 @@ export class Et2LinkEntry extends Et2InputWidget(FormControlMixin(ValidateMixin(
 		this._searchNode.app = this._appNode.value;
 	}
 
-	protected __value : LinkEntry|string|number;
-
 	get value() : LinkEntry|string|number
 	{
 		if (this.only_app)
@@ -203,7 +211,6 @@ export class Et2LinkEntry extends Et2InputWidget(FormControlMixin(ValidateMixin(
 	 * @return {TemplateResult}
 	 * @protected
 	 */
-	// eslint-disable-next-line class-methods-use-this
 	_inputGroupInputTemplate()
 	{
 		return html`

api/js/etemplate/Et2Link/Et2LinkSearch.ts

@@ -44,6 +44,7 @@ export class Et2LinkSearch extends Et2Select
 		super();
 		this.search = true;
 		this.searchUrl = "EGroupware\\Api\\Etemplate\\Widget\\Link::ajax_link_search";
+		this.clearable = true;
 	}
 
 	get _appNode() : Et2LinkAppSelect
@@ -53,7 +54,7 @@ export class Et2LinkSearch extends Et2Select
 
 	protected remoteQuery(search : string, options : object)
 	{
-		let request = this.egw().json(this.searchUrl, [this._appNode.value, '', search, options]);
+		let request = this.egw().request(this.searchUrl, [this._appNode.value, '', search, options]);
 		if(this.query && typeof this.query == "function")
 		{
 			if(!this.query(request, this))
@@ -61,16 +62,9 @@ export class Et2LinkSearch extends Et2Select
 				return;
 			}
 		}
-		// ToDo use egw.request(), not old egw.json()
-		request.sendRequest().then((result) =>
+		request.then((result) =>
 		{
-			result.response.forEach((response) =>
-			{
-				if (typeof response.data !== 'undefined')
-				{
-					this.processRemoteResults(response.data);
-				}
-			});
+			this.processRemoteResults(result);
 		});
 	}
 }

api/js/etemplate/Et2Select/Et2Select.ts

@@ -281,7 +281,7 @@ export class Et2Select extends Et2WithSearchMixin(Et2InvokerMixin(Et2WidgetWithS
             <et2-image slot="prefix" src="${option.icon}"></et2-image>` : "";
 
 		return html`
-            <sl-menu-item value="${option.value}" title="${option.title}">
+            <sl-menu-item value="${option.value}" title="${option.title}" class="${option.class}">
                 ${icon}
                 ${option.label}
             </sl-menu-item>`;

api/js/etemplate/Et2Select/Et2WidgetWithSelectMixin.ts

@@ -11,7 +11,7 @@ import {Et2InputWidget} from "../Et2InputWidget/Et2InputWidget";
 import {StaticOptions} from "./StaticOptions";
 import {dedupeMixin, html, PropertyValues, render, repeat, TemplateResult} from "@lion/core";
 import {et2_readAttrWithDefault} from "../et2_core_xml";
-import {find_select_options, SelectOption} from "./FindSelectOptions";
+import {cleanSelectOptions, find_select_options, SelectOption} from "./FindSelectOptions";
 
 /**
  * Base class for things that do selectbox type behaviour, to avoid putting too much or copying into read-only
@@ -147,25 +147,9 @@ export const Et2widgetWithSelectMixin = dedupeMixin((superclass) =>
 		set select_options(new_options : SelectOption[])
 		{
 			const old_options = this.__select_options;
-			if(!Array.isArray(new_options))
-			{
-				let fixed_options = [];
-				for(let key in <any>new_options)
-				{
-					let option : any = new_options[key];
-					if (typeof option === 'string')
-					{
-						option = { label: option };
-					}
-					option.value = key.trim();	// link_search prefixes keys with one space
-					fixed_options.push(option);
-				}
-				this.__select_options = fixed_options;
-			}
-			else
-			{
-				this.__select_options = new_options;
-			}
+
+			this.__select_options = cleanSelectOptions(new_options);
+
 			this.requestUpdate("select_options", old_options);
 		}
 

api/js/etemplate/Et2Select/FindSelectOptions.ts

@@ -15,6 +15,8 @@ export interface SelectOption
 	title? : string;
 	// Related image or icon
 	icon? : string;
+	// Class applied to node
+	class? : string;
 }
 
 /**
@@ -210,3 +212,36 @@ export function find_select_options(widget, attr_options?, options : SelectOptio
 	}
 	return content_options;
 }
+
+
+/**
+ * Clean up things that might be select options and get them to what we need to make
+ * them consistent for widget use.
+ *
+ * Options might be just a list of labels, or an object of value => label pairs, etc.
+ *
+ * @param {SelectOption[] | string[] | object} options
+ */
+export function cleanSelectOptions(options : SelectOption[] | string[] | object) : SelectOption[]
+{
+	let fixed_options = [];
+	if(!Array.isArray(options))
+	{
+		for(let key in <any>options)
+		{
+			let option : any = options[key];
+			if(typeof option === 'string')
+			{
+				option = {label: option};
+			}
+			option.value = key.trim();	// link_search prefixes keys with one space
+			fixed_options.push(option);
+		}
+	}
+	else
+	{
+		fixed_options = options;
+	}
+
+	return fixed_options;
+}

api/js/etemplate/Et2Select/SearchMixin.ts

@@ -8,7 +8,8 @@
  */
 
 
-import {css, dedupeMixin, html, LitElement, render, SlotMixin} from "@lion/core";
+import {css, dedupeMixin, html, LitElement, render, repeat, SlotMixin} from "@lion/core";
+import {cleanSelectOptions, SelectOption} from "./FindSelectOptions";
 
 
 // Export the Interface for TypeScript
@@ -295,7 +296,7 @@ export const Et2WithSearchMixin = dedupeMixin((superclass) =>
 				if(this.getItems().length === 1)
 				{
 					this.getItems()[0].click();
-// not jQuery		this.hide();
+					this.dropdown.hide();
 					return;
 				}
 				event.preventDefault();
@@ -392,7 +393,18 @@ export const Et2WithSearchMixin = dedupeMixin((superclass) =>
 		 */
 		protected processRemoteResults(results)
 		{
-			this.select_options = results;
+			let entries = cleanSelectOptions(results);
+
+			// Add a "remote" class so we can tell these apart from any local results
+			entries.forEach((entry) => entry.class = entry.class += "remote");
+
+			let target = this._optionTargetNode || this;
+			if(target)
+			{
+				render(html`${repeat(<SelectOption[]>entries, (option : SelectOption) => option.value, this._optionTemplate.bind(this))}`,
+					target
+				);
+			}
 		}
 
 		/**