implab/implabjs-djx Commit - r72:3ef812269f4f

temp commit, working on @on() decorator

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djx/package.json +1 -2

             {
                 "name": "@implab/djx",
                 "version": "0.0.1-dev",
                 "description": "Supports using dojo version 1 with typescript and .tsx files",
                 "keywords": [
                     "dojo",
                     "tsx",
                     "typescript",
                     "widgets"
                 ],
                 "author": "Implab team",
                 "license": "BSD-2-Clause",
                 "repository": "https://code.implab.org/implab/implabjs-djx",
                 "publishConfig": {
                     "access": "public"
                 },
                 "peerDependencies": {
                     "@implab/core-amd": "^1.4.0",
                     "dojo": "^1.10.0"
                 },
                 "devDependencies": {
                     "@implab/core-amd": "^1.4.0",
                     "@types/chai": "4.1.3",
                     "@types/requirejs": "2.1.31",
                     "@types/yaml": "1.2.0",
-                    "chai": "4.2.0",
                     "dojo": "1.16.0",
-                    "@implab/dojo-typings": "/home/sergey/projects/implabjs-dojo-typings/dojo-typings/build/npm/package/implab-dojo-typings-v1.0.0-rc4.tgz",
+                    "@implab/dojo-typings": "1.0.0",
                     "eslint": "6.8.0",
                     "requirejs": "2.3.6",
                     "tslint": "^6.1.3",
                     "typescript": "4.2.4",
                     "yaml": "~1.7.2"
                 }
             }

djx/src/main/ts/tsx/DjxWidgetBase.ts +14 0

             import { AbstractConstructor, djbase, djclass } from "../declare";
             import _WidgetBase = require("dijit/_WidgetBase");
             import _AttachMixin = require("dijit/_AttachMixin");
             import { Rendition, isNode, startupWidgets } from "./traits";
             import registry = require("dijit/registry");
             // type Handle = dojo.Handle;
             export interface EventArgs {
                 bubbles?: boolean;
                 cancelable?: boolean;
                 composed?: boolean;
             }
             export interface DjxWidgetBase<Attrs = {}, Events extends { [name in keyof Events]: Event } = {}> extends
                 _WidgetBase<Events> {
+                readonly _eventMap: Events & GlobalEventHandlersEventMap;
             }
             type _super = {
                 startup(): void;
             }
             @djclass
             export abstract class DjxWidgetBase<Attrs = {}, Events = {}> extends djbase<_super, _AttachMixin>(_WidgetBase, _AttachMixin) {
+                _eventHandlers: Array<{
+                    eventName: keyof Events,
+                    handlerMethod: string;
+                }> = [];
                 buildRendering() {
                     this.domNode = this.render().getDomNode();
                     super.buildRendering();
                     // now we should get assigned data-dojo-attach-points
                     // place the contents of the original srcNode to the containerNode
                     const src = this.srcNodeRef;
                     const dest = this.containerNode;
                     if (src && dest) {
                         while (src.firstChild)
                             dest.appendChild(src.firstChild);
                     }
                 }
                 abstract render(): Rendition<HTMLElement>;
+                private _connectEventHandlers() {
+                    this._eventHandlers.forEach(({eventName, handlerMethod}) => {
+                        if (typeof this[handlerMethod as keyof this] === "function")
+                            this.on(eventName, this[handlerMethod] as Function);
+                    });
+                }
                 _processTemplateNode<T extends (Element | Node | _WidgetBase)>(
                     baseNode: T,
                     getAttrFunc: (baseNode: T, attr: string) => any,
                     // tslint:disable-next-line: ban-types
                     attachFunc: (node: T, type: string, func?: Function) => dojo.Handle
                 ): boolean {
                     if (isNode(baseNode)) {
                         const w = registry.byNode(baseNode);
                         if (w) {
                             // from dijit/_WidgetsInTemplateMixin
                             this._processTemplateNode(w,
                                 (n, p) => n.get(p as any), // callback to get a property of a widget
                                 (widget, type, callback) => {
                                     if (!callback)
                                         throw new Error("The callback must be specified");
                                     // callback to do data-dojo-attach-event to a widget
                                     if (type in widget) {
                                         // back-compat, remove for 2.0
                                         return widget.connect(widget, type, callback as EventListener);
                                     } else {
                                         // 1.x may never hit this branch, but it's the default for 2.0
                                         return widget.on(type, callback);
                                     }
                                 });
                             // don't process widgets internals
                             return false;
                         }
                     }
                     return super._processTemplateNode(baseNode, getAttrFunc, attachFunc);
                 }
                 /** Starts current widget and all its supporting widgets (placed outside
                  * `containerNode`) and child widgets (placed inside `containerNode`)
                  */
                 startup() {
                     // startup supporting widgets
                     registry.findWidgets(this.domNode, this.containerNode).forEach(w => w.startup());
                     super.startup();
                 }
             }

djx/src/main/ts/tsx/traits.ts +18 0

             import { IDestroyable, IRemovable } from "@implab/core-amd/interfaces";
             import { isDestroyable } from "@implab/core-amd/safe";
             import _WidgetBase = require("dijit/_WidgetBase");
             import registry = require("dijit/registry");
             import dom = require("dojo/dom-construct");
             import Stateful = require("dojo/Stateful");
             import { FunctionRendition } from "./FunctionRendition";
+            import { DjxWidgetBase } from "./DjxWidgetBase";
             type _WidgetBaseConstructor = typeof _WidgetBase;
             export type DojoNodePosition = "first" | "after" | "before" | "last" | "replace" | "only" | number;
             export interface Rendition<TNode extends Node = Node> {
                 getDomNode(): TNode;
                 placeAt(refNode: string | Node, position?: DojoNodePosition): void;
             }
             /**
              * @deprecated use Rendition
              */
             export type BuildContext<TNode extends Node = Node> = Rendition<TNode>;
             export interface IRecursivelyDestroyable {
                 destroyRecursive(): void;
             }
             export function isNode(el: any): el is Node {
                 return el && el.nodeName && el.nodeType;
             }
             export function isElementNode(el: any): el is Element {
                 return isNode(el) && el.nodeType === 1;
             }
             export function isTextNode(el: any): el is Text {
                 return isNode(el) && el.nodeType === 3;
             }
             export function isProcessingInstructionNode(el: any): el is ProcessingInstruction {
                 return isNode(el) && el.nodeType === 7;
             }
             export function isCommentNode(el: any): el is Comment {
                 return isNode(el) && el.nodeType === 8;
             }
             export function isDocumentNode(el: any): el is Document {
                 return isNode(el) && el.nodeType === 9;
             }
             export function isDocumentTypeNode(el: any): el is DocumentType {
                 return isNode(el) && el.nodeType === 10;
             }
             export function isDocumentFragmentNode(el: any): el is DocumentFragment {
                 return isNode(el) && el.nodeType === 11;
             }
             export function isWidget(v: any): v is _WidgetBase {
                 return v && "domNode" in v;
             }
             export function isRendition(v: any): v is Rendition {
                 return typeof v === "object" && typeof v.getDomElement === "function";
             }
             /**
              * @deprecated use isRendition
              */
             export const isBuildContext = isRendition;
             export function isPlainObject(v: object) {
                 if (typeof v !== "object")
                     return false;
                 const vp = Object.getPrototypeOf(v);
                 return !vp || vp === Object.prototype;
             }
             export function isWidgetConstructor(v: any): v is _WidgetBaseConstructor {
                 return typeof v === "function" && v.prototype && (
                     "domNode" in v.prototype ||
                     "buildRendering" in v.prototype
                 );
             }
             /** Tests whether the specified node is placed in visible dom.
              *  @param {Node} node The node to test
              */
             export function isInPage(node: Node) {
                 return (node === document.body) ? false : document.body.contains(node);
             }
             export function isRecursivelyDestroyable(target: any): target is IRecursivelyDestroyable {
                 return target && typeof target.destroyRecursive === "function";
             }
             /** Destroys DOM Node with all contained widgets.
              * If the specified node is the root node of a widget, then the
              * widget will be destroyed.
              *
              * @param target DOM Node or widget to destroy
              */
             export function destroy(target: Node | IDestroyable | IRecursivelyDestroyable) {
                 if (isRecursivelyDestroyable(target)) {
                     target.destroyRecursive();
                 } else if (isDestroyable(target)) {
                     target.destroy();
                 } else if (isNode(target)) {
                     const self = registry.byNode(target);
                     if (self) {
                         self.destroyRecursive();
                     } else {
                         registry.findWidgets(target).forEach(destroy);
                         dom.destroy(target);
                     }
                 }
             }
             /** Empties a content of the specified node and destroys all contained widgets.
              *
              * @param target DOM node to .
              */
             export function emptyNode(target: Node) {
                 registry.findWidgets(target).forEach(destroy);
                 dom.empty(target);
             }
             /** This function starts all widgets inside the DOM node if the target is a node
              * or starts widget itself if the target is the widget. If the specified node
              * associated with the widget that widget will be started.
              *
              * @param target DOM node to find and start widgets or the widget itself.
              */
             export function startupWidgets(target: Node | _WidgetBase, skipNode?: Node) {
                 if (isNode(target)) {
                     const w = isElementNode(target) ? registry.byNode(target) : undefined;
                     if (w) {
                         if (w.startup)
                             w.startup();
                     } else {
                         registry.findWidgets(target, skipNode).forEach(x => x.startup());
                     }
                 } else {
                     if (target.startup)
                         target.startup();
                 }
             }
             type StatefulProps<T> = T extends Stateful<infer A> ? A : never;
             type CleanFn = (instance: IRemovable | IDestroyable) => void;
             /**
              * Observers the property and calls render callback each change.
              *
              * @param target The target object which property will be observed.
              * @param prop The name of the property.
              * @param render The callback which will be called every time the value is changed
              * @param cleanupOrOwner The object with method `own` or an callback to register lifecycle for the observer.
              * @returns Rendition which is created instantly
              */
             export function watch<W extends _WidgetBase, K extends keyof W>(
                 target: W,
                 prop: K,
                 render: (model: W[K]) => any,
                 cleanupOrOwner?: { own: CleanFn } | CleanFn
             ): Rendition;
             /**
              * Observers the property and calls render callback each change.
              *
              * @param target The target object which property will be observed.
              * @param prop The name of the property.
              * @param render The callback which will be called every time the value is changed
              * @param cleanupOrOwner The object with method `own` or an callback to register lifecycle for the observer.
              * @returns Rendition which is created instantly
              */
             export function watch<T extends Stateful, K extends keyof StatefulProps<T>>(
                 target: T,
                 prop: K,
                 render: (model: StatefulProps<T>[K]) => any,
                 cleanupOrOwner?: { own: CleanFn } | CleanFn
             ): Rendition;
             export function watch<T extends Stateful, K extends keyof StatefulProps<T> & string>(
                 target: T,
                 prop: K,
                 render: (model: StatefulProps<T>[K]) => any,
                 cleanupOrOwner: { own: CleanFn } | CleanFn = () => { }
             ) {
                 let rendition = new FunctionRendition(() => render(target.get(prop)));
                 const _own = cleanupOrOwner instanceof Function ? cleanupOrOwner : (x: IRemovable) => cleanupOrOwner.own(x)
                 _own(target.watch(prop, (_name, oldValue, newValue) => {
                     if (oldValue !== newValue) {
                         const newRendition = new FunctionRendition(() => render(newValue));
                         newRendition.placeAt(rendition.getDomNode(), "replace");
                         destroy(rendition.getDomNode());
                         rendition = newRendition;
                     }
                 }));
                 return rendition;
             }
+            export type WidgetEvents<W> = W extends DjxWidgetBase<any, infer EM> ? EM : never;
+            export type HandlerType<W, E extends keyof any> = W extends {
+                on(eventName: E, handler: infer H): any;
+            } ? H : never;
+            export const on = <E extends keyof any>(eventName: E) =>
+                <K extends keyof T,
+                    T extends DjxWidgetBase
+                >(
+                    target: T,
+                    key: K,
+                    descriptor: PropertyDescriptor
+                ): any => {
+                    target.
+                };

djx/src/test/ts/view/MyWidget.tsx +18 0

             import { djbase, djclass, bind, prototype, AbstractConstructor } from "../declare";
             import { DjxWidgetBase } from "../tsx/DjxWidgetBase";
             import { createElement } from "../tsx";
+            import { HandlerType, on, WidgetEvents } from "../tsx/traits";
             interface MyWidgetAttrs {
                 title: string;
                 counter: number;
             }
             interface MyWidgetEvents {
                 "count-inc": Event & {
                     detail: number;
                 };
                 "count-dec": Event & {
                     detail: number;
                 };
             }
             @djclass
             export class MyWidget extends djbase(DjxWidgetBase as AbstractConstructor<DjxWidgetBase<MyWidgetAttrs, MyWidgetEvents>>) {
                 @bind({ node: "titleNode", type: "innerHTML" })
                 title = "";
                 @prototype()
                 counter = 0;
                 render() {
                     const Frame = (props: any) => <div>{props.children}</div>;
                     return <div className="myWidget" onsubmit={e => this._onSubmit(e)} tabIndex={3} style={{ alignContent: "center", border: "1px solid" }} >
                         <h1 data-dojo-attach-point="titleNode"></h1>
                         <Frame>
                             <span class="up-button" onclick={e => this._onIncClick(e)}>[+]</span>
                             <span class="down-button" onclick={() => this._onDecClick()}>[-]</span>
                         </Frame>
                     </div>;
                 }
+                postCreate() {
+                    super.postCreate();
+                    this.on("click", () => {});
+                }
                 _onSubmit(e: Event) {
                 }
                 _onIncClick(e: MouseEvent) {
                     this.set("counter", this.counter + 1);
                     this.emit("count-inc", { bubbles: false });
                 }
                 _onDecClick() {
                     this.emit("count-dec", { bubbles: false, detail: this.counter });
                 }
+                @on("count-inc")
+                _onCounterInc(evt: Event & { detail: number; }) {
                 }
+            }
+            declare const w: MyWidget;
+            w.on("click", () => {});
+            declare const ev: WidgetEvents<MyWidget>;
+            ev["count-inc"];

djx/src/tsconfig.json +1 0

             {
                 "compilerOptions": {
                     "moduleResolution": "node",
                     "noEmitOnError": true,
                     "strict": true,
                     "types": [],
                     "experimentalDecorators": true,
                     "jsxFactory": "createElement",
+                    "target": "ES5",
                     //"skipLibCheck": true,
                     "jsx": "react",
                     "lib": ["es5", "es2015.promise", "es2015.symbol", "es2015.iterable", "dom", "scripthost"]
                 }
             }

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