Swap Promise for jQuery.Promise in loadingFinished() & doLoadingFinished()

This lets us add LitElement's updateComplete Promise into the list of things to wait for, and solves the problem of app init code being run before widgets are complete.

https://lit.dev/docs/components/lifecycle/#reactive-update-cycle-completing

api/js/etemplate/Et2Widget/Et2Widget.ts

@@ -394,6 +394,17 @@ const Et2WidgetMixin = (superClass) =>
 			return this.classList.value;
 		}
 
+		/**
+		 * Set the widget class
+		 *
+		 * @deprecated Use this.class or this.classList instead
+		 * @param {string} new_class
+		 */
+		set_class(new_class : string)
+		{
+			this.class = new_class;
+		}
+
 		/**
 		 * Event handlers
 		 */
@@ -771,8 +782,9 @@ const Et2WidgetMixin = (superClass) =>
 					child.loadingFinished(promises);
 				}
 			};
-
 			doLoadingFinished();
+
+			promises.push(this.getUpdateComplete());
 		}
 
 		getWidgetById(_id)

api/js/etemplate/et2_core_DOMWidget.ts

@@ -18,14 +18,8 @@ import {ClassWithAttributes} from './et2_core_inheritance';
 import {et2_IDOMNode} from "./et2_core_interfaces";
 import {et2_hasChild, et2_no_init} from "./et2_core_common";
 import {et2_widget, WidgetConfig} from "./et2_core_widget";
-import {
-	egw_getActionManager,
-	egwActionObject,
-	egwActionObjectInterface,
-	egw_getAppObjectManager,
-	egw_getObjectManager
-} from '../egw_action/egw_action.js';
-import {EGW_AI_DRAG_OVER, EGW_AI_DRAG_OUT} from '../egw_action/egw_action_constants.js';
+import {egw_getActionManager, egw_getAppObjectManager, egw_getObjectManager} from '../egw_action/egw_action.js';
+import {EGW_AI_DRAG_OUT, EGW_AI_DRAG_OVER} from '../egw_action/egw_action_constants.js';
 import {egw} from "../jsapi/egw_global";
 // fixing circular dependencies by only importing type
 import type {et2_tabbox} from "./et2_widget_tabs";
@@ -170,7 +164,7 @@ export abstract class et2_DOMWidget extends et2_widget implements et2_IDOMNode
 	/**
 	 * Attaches the container node of this widget to the DOM-Tree
 	 */
-	doLoadingFinished() : boolean | JQueryPromise<unknown>
+	doLoadingFinished() : boolean | Promise<any>
 	{
 		// Check whether the parent implements the et2_IDOMNode interface. If
 		// yes, grab the DOM node and create our own.

api/js/etemplate/et2_core_inputWidget.ts

@@ -18,7 +18,7 @@ import {et2_no_init} from "./et2_core_common";
 import {ClassWithAttributes} from "./et2_core_inheritance";
 import {et2_widget, WidgetConfig} from "./et2_core_widget";
 import {et2_valueWidget} from './et2_core_valueWidget'
-import {et2_IInput, et2_IInputNode, et2_ISubmitListener} from "./et2_core_interfaces";
+import {et2_IInput, et2_ISubmitListener} from "./et2_core_interfaces";
 import {et2_compileLegacyJS} from "./et2_core_legacyJSFunctions";
 // fixing circular dependencies by only importing the type (not in compiled .js)
 import type {et2_tabbox} from "./et2_widget_tabs";
@@ -107,7 +107,7 @@ export class et2_inputWidget extends et2_valueWidget implements et2_IInput, et2_
 	/**
 	 * Make sure dirty flag is properly set
 	 */
-	doLoadingFinished(): boolean | JQueryPromise<unknown>
+	doLoadingFinished() : boolean | Promise<unknown>
 	{
 		let result = super.doLoadingFinished();
 

api/js/etemplate/et2_core_widget.ts

@@ -900,12 +900,12 @@ export class et2_widget extends ClassWithAttributes
 		};
 
 		var result = this.doLoadingFinished();
-		if (typeof result == "boolean" && result)
+		if(typeof result == "boolean" && result)
 		{
 			// Simple widget finishes nicely
 			loadChildren.apply(this, arguments);
 		}
-		else if (typeof result == "object" && result.done)
+		else if(typeof result == "object" && result.then)
 		{
 			// Warn if list was not provided
 			if (warn_if_deferred)
@@ -916,7 +916,7 @@ export class et2_widget extends ClassWithAttributes
 			// Widget is waiting.  Add to the list
 			promises.push(result);
 			// Fihish loading when it's finished
-			result.done(jQuery.proxy(loadChildren, this));
+			result.then(loadChildren.bind(this));
 		}
 	}
 
@@ -956,9 +956,9 @@ export class et2_widget extends ClassWithAttributes
 	 * @return {boolean|Promise} True if the widget is fully loaded, false to avoid procesing children,
 	 * or a Promise if loading is not actually finished (eg. waiting for AJAX)
 	 *
-	 * @see {@link http://api.jquery.com/deferred.promise/|jQuery Promise}
+	 * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise Promise}
 	 */
-	doLoadingFinished(): JQueryPromise<any> | boolean
+	doLoadingFinished() : Promise<any> | boolean
 	{
 		return true;
 	}

api/js/etemplate/et2_extension_nextmatch.ts

@@ -41,7 +41,13 @@
 */
 
 import {et2_csvSplit, et2_no_init} from "./et2_core_common";
-import {et2_IInput, et2_IPrint, et2_IResizeable, implements_methods, et2_implements_registry} from "./et2_core_interfaces";
+import {
+	et2_IInput,
+	et2_implements_registry,
+	et2_IPrint,
+	et2_IResizeable,
+	implements_methods
+} from "./et2_core_interfaces";
 import {ClassWithAttributes} from "./et2_core_inheritance";
 import {et2_createWidget, et2_register_widget, et2_widget, WidgetConfig} from "./et2_core_widget";
 import {et2_DOMWidget} from "./et2_core_DOMWidget";
@@ -292,6 +298,12 @@ export class et2_nextmatch extends et2_DOMWidget implements et2_IResizeable, et2
 		row_selector: '',
 		orientation_style: null
 	};
+	/**
+	 * When loading the row template, we have to wait for the template before we try to process it.
+	 * During the legacy load process, we need to return this from doLoadingFinished() so it can be waited on so we
+	 * have to store it.
+	 */
+	private template_promise : Promise<void>;
 
 	/**
 	 * Constructor
@@ -497,8 +509,7 @@ export class et2_nextmatch extends et2_DOMWidget implements et2_IResizeable, et2
 				this.controller._grid.doInvalidate = true;
 			}
 		}, this));
-
-		return true;
+		return this.template_promise ? this.template_promise : true;
 	}
 
 	/**
@@ -2521,8 +2532,8 @@ export class et2_nextmatch extends et2_DOMWidget implements et2_IResizeable, et2
 		template.loadingFinished(promise);
 
 		// Wait until template (& children) are done
-		jQuery.when.apply(null, promise).done(
-			jQuery.proxy(function()
+		// Keep promise so we can return it from doLoadingFinished
+		this.template_promise = Promise.all(promise).then(() =>
 			{
 				parse.call(this, template);
 				if(!this.dynheight)
@@ -2531,9 +2542,10 @@ export class et2_nextmatch extends et2_DOMWidget implements et2_IResizeable, et2
 				}
 				this.dynheight.initialized = false;
 				this.resize();
-			}, this)
-		);
-		return promise;
+			}
+		).finally(() => this.template_promise = null);
+
+		return this.template_promise;
 	}
 
 	// Some accessors to match conventions

api/js/etemplate/et2_widget_historylog.ts

@@ -112,7 +112,7 @@ export class et2_historylog extends et2_valueWidget implements et2_IDataProvider
 		this.options.status_id = _new_id;
 	}
 
-	doLoadingFinished( ) : boolean | JQueryPromise<unknown>
+	doLoadingFinished() : boolean | Promise<unknown>
 	{
 		super.doLoadingFinished();
 
@@ -121,7 +121,8 @@ export class et2_historylog extends et2_valueWidget implements et2_IDataProvider
 		if(tab)
 		{
 			// Bind the action to when the tab is selected
-			const handler = function (e) {
+			const handler = function(e)
+			{
 				e.data.div.unbind("click.history");
 				// Bind on click tap, because we need to update history size
 				// after a rezise happend and history log was not the active tab

api/js/etemplate/et2_widget_tabs.ts

@@ -14,10 +14,9 @@
 	et2_core_valueWidget;
 */
 
-import { ClassWithAttributes } from "./et2_core_inheritance";
-import { et2_widget, et2_createWidget, et2_register_widget, WidgetConfig } from "./et2_core_widget";
-import { et2_DOMWidget } from './et2_core_DOMWidget'
-import { et2_valueWidget } from './et2_core_valueWidget'
+import {ClassWithAttributes} from "./et2_core_inheritance";
+import {et2_createWidget, et2_register_widget, et2_widget, WidgetConfig} from "./et2_core_widget";
+import {et2_valueWidget} from './et2_core_valueWidget'
 import {et2_nextmatch} from "./et2_extension_nextmatch";
 import {et2_no_init} from "./et2_core_common";
 import {et2_IInput, et2_IPrint, et2_IResizeable} from "./et2_core_interfaces";
@@ -26,7 +25,7 @@ import {et2_directChildrenByTagName, et2_filteredNodeIterator, et2_readAttrWithD
 /**
  * Class which implements the tabbox-tag
  */
-export class et2_tabbox extends et2_valueWidget implements et2_IInput,et2_IResizeable,et2_IPrint
+export class et2_tabbox extends et2_valueWidget implements et2_IInput, et2_IResizeable, et2_IPrint
 {
 	static readonly _attributes : any = {
 		'tabs': {
@@ -252,15 +251,17 @@ export class et2_tabbox extends et2_valueWidget implements et2_IInput,et2_IResiz
 	 */
 	doLoadingFinished()
 	{
-		var tab_deferred = jQuery.Deferred();
 		var promises = [];
 		var tabs = this;
 
 		// Specially process the selected index so it shows up right away
-		this._loadTab(this.selected_index,promises);
+		this._loadTab(this.selected_index, promises);
 
 		// Avoid reloading if tabs were modified by data
-		if(this.isInTree() && this.isAttached()) return;
+		if(this.isInTree() && this.isAttached())
+		{
+			return;
+		}
 
 		// Apply parent now, which actually puts into the DOM
 		// This has to be before loading the child, so the dom sub-tree is not
@@ -271,20 +272,27 @@ export class et2_tabbox extends et2_valueWidget implements et2_IInput,et2_IResiz
 		// which has special handling
 		this._children[0].loadingFinished(promises);
 
-		// Defer parsing & loading of other tabs until later
-		window.setTimeout(function() {
-			for (var i = 0; i < tabs.tabData.length; i++)
+		let tab_deferred = new Promise<any>((resolve, reject) =>
+		{
+			// Defer parsing & loading of other tabs until later
+			window.setTimeout(function()
 			{
-				if (i == tabs.selected_index) continue;
-				tabs._loadTab(i,promises);
-			}
-			jQuery.when.apply(jQuery,promises).then(function() {
-				tab_deferred.resolve();
-				tabs.resetDirty();
-			});
-		},0);
-
-		return tab_deferred.promise();
+				for(var i = 0; i < tabs.tabData.length; i++)
+				{
+					if(i == tabs.selected_index)
+					{
+						continue;
+					}
+					tabs._loadTab(i, promises);
+				}
+				Promise.all(promises).then(function()
+				{
+					resolve();
+					tabs.resetDirty();
+				});
+			}, 0);
+		});
+		return tab_deferred;
 	}
 
 	/**

api/js/etemplate/et2_widget_template.ts

@@ -72,9 +72,9 @@ export class et2_template extends et2_DOMWidget
 		}
 	};
 
-	content: string;
-	div: HTMLDivElement;
-	loading: JQueryDeferred<unknown>;
+	content : string;
+	div : HTMLDivElement;
+	loading : Promise<any>;
 
 	/**
 	 * Constructor
@@ -94,66 +94,78 @@ export class et2_template extends et2_DOMWidget
 		this.div = document.createElement("div");
 
 		// Deferred object so we can load via AJAX
-		this.loading = jQuery.Deferred();
-
-		// run transformAttributes now, to get server-side modifications (url!)
-		if (_attrs.template)
+		this.loading = new Promise<any>((resolve, reject) =>
 		{
-			this.id = _attrs.template;
-			this.transformAttributes(_attrs);
-			this.options = et2_cloneObject(_attrs);
-			_attrs = {};
-		}
-		if (this.id != "" || this.options.template)
-		{
-			var parts = (this.options.template || this.id).split('?');
-			var cache_buster = parts.length > 1 ? parts.pop() : null;
-			var template_name = parts.pop();
 
-			// Check to see if XML is known
-			var xml = null;
-			var templates = etemplate2.templates;	// use global eTemplate cache
-			if(!(xml = templates[template_name]))
+			// run transformAttributes now, to get server-side modifications (url!)
+			if(_attrs.template)
 			{
-				// Check to see if ID is short form --> prepend parent/top-level name
-				if(template_name.indexOf('.') < 0)
+				this.id = _attrs.template;
+				this.transformAttributes(_attrs);
+				this.options = et2_cloneObject(_attrs);
+				_attrs = {};
+			}
+			if(this.id != "" || this.options.template)
+			{
+				var parts = (this.options.template || this.id).split('?');
+				var cache_buster = parts.length > 1 ? parts.pop() : null;
+				var template_name = parts.pop();
+
+				// Check to see if XML is known
+				var xml = null;
+				var templates = etemplate2.templates;	// use global eTemplate cache
+				if(!(xml = templates[template_name]))
 				{
-					var root = _parent ? _parent.getRoot() : null;
-					var top_name = root && root._inst ? root._inst.name : null;
-					if (top_name && template_name.indexOf('.') < 0) template_name = top_name+'.'+template_name;
-				}
-				xml = templates[template_name];
-				if(!xml)
-				{
-					// Ask server
-					var url = this.options.url;
-					if (!this.options.url)
+					// Check to see if ID is short form --> prepend parent/top-level name
+					if(template_name.indexOf('.') < 0)
 					{
-						var splitted = template_name.split('.');
-						var app = splitted.shift();
-						// use template base url from initial template, to continue using webdav, if that was loaded via webdav
-						url = this.getRoot()._inst.template_base_url + app + "/templates/default/" +
-							splitted.join('.')+ ".xet" + (cache_buster ? '?download='+cache_buster : '');
+						var root = _parent ? _parent.getRoot() : null;
+						var top_name = root && root._inst ? root._inst.name : null;
+						if(top_name && template_name.indexOf('.') < 0)
+						{
+							template_name = top_name + '.' + template_name;
+						}
 					}
-					// if server did not give a cache-buster, fall back to current time
+					xml = templates[template_name];
+					if(!xml)
+					{
+						// Ask server
+						var url = this.options.url;
+						if(!this.options.url)
+						{
+							var splitted = template_name.split('.');
+							var app = splitted.shift();
+							// use template base url from initial template, to continue using webdav, if that was loaded via webdav
+							url = this.getRoot()._inst.template_base_url + app + "/templates/default/" +
+								splitted.join('.') + ".xet" + (cache_buster ? '?download=' + cache_buster : '');
+						}
+						// if server did not give a cache-buster, fall back to current time
 					if (url.indexOf('?') == -1) url += '?download='+(new Date).valueOf();
 
 					if(this.options.url || splitted.length)
 					{
-						var fetch_url_callback = function(_xmldoc) {
+						var fetch_url_callback = function(_xmldoc)
+						{
 							// Scan for templates and store them
-							for(var i = 0; i < _xmldoc.childNodes.length; i++) {
+							for(var i = 0; i < _xmldoc.childNodes.length; i++)
+							{
 								var template = _xmldoc.childNodes[i];
-								if(template.nodeName.toLowerCase() != "template") continue;
+								if(template.nodeName.toLowerCase() != "template")
+								{
+									continue;
+								}
 								templates[template.getAttribute("id")] = template;
 							}
 
 							// Read the XML structure of the requested template
-							if (typeof templates[template_name] != 'undefined') this.loadFromXML(templates[template_name]);
+							if(typeof templates[template_name] != 'undefined')
+							{
+								this.loadFromXML(templates[template_name]);
+							}
 
 							// Update flag
-							this.loading.resolve();
-						};
+							resolve();
+						}.bind(this);
 
 						et2_loadXMLFromURL(url, fetch_url_callback, this, function( error) {
 							url = egw.link('/'+ app + "/templates/default/" +
@@ -173,19 +185,20 @@ export class et2_template extends et2_DOMWidget
 				//this.loadingFinished();
 
 				// But resolve the promise
-				this.loading.resolve();
+				resolve();
 			}
 			else
 			{
 				this.egw().debug("warn", "Unable to find XML for ", template_name);
-				this.loading.reject();
+				reject()
 			}
-		}
-		else
-		{
-			// No actual template
-			this.loading.resolve();
-		}
+			}
+			else
+			{
+				// No actual template
+				reject();
+			}
+		});
 	}
 
 	/**
@@ -252,10 +265,10 @@ export class et2_template extends et2_DOMWidget
 		super.doLoadingFinished();
 
 		// Fire load event when done loading
-		this.loading.done(jQuery.proxy(function() {jQuery(this).trigger("load");},this.div));
+		this.loading.then(function() {jQuery(this).trigger("load");}.bind(this.div));
 
 		// Not done yet, but widget will let you know
-		return this.loading.promise();
+		return this.loading;
 	}
 }
 et2_register_widget(et2_template, ["template"]);

api/js/etemplate/etemplate2.ts

@@ -638,24 +638,9 @@ export class etemplate2
 				{
 					egw.window.console.groupEnd();
 				}
-				if(deferred.length > 0)
-				{
-					let still_deferred = 0;
-					jQuery(deferred).each(function()
-					{
-						if(this.state() == "pending")
-						{
-							still_deferred++;
-						}
-					});
-					if(still_deferred > 0)
-					{
-						egw.debug("log", "Template loaded, waiting for %d/%d deferred to finish...", still_deferred, deferred.length);
-					}
-				}
 
 				// Wait for everything to be loaded, then finish it up
-				jQuery.when.apply(jQuery, deferred).done(jQuery.proxy(function()
+				Promise.all(deferred).then(() =>
 				{
 					egw.debug("log", "Finished loading %s, triggering load event", _name);
 
@@ -736,7 +721,7 @@ export class etemplate2
 						gen_time_div.find('.et2RenderTime').remove();
 						gen_time_div.append('<span class="et2RenderTime">' + egw.lang('eT2 rendering took %1s', '' + ((end_time - start_time) / 1000)) + '</span>');
 					}
-				}, this));
+				});
 			};