From 5570df8bf026682c126238fe9f2a5570a07626d9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=A9ry=20Debongnie?= <ged@odoo.com>
Date: Sun, 27 Jan 2019 09:41:56 +0100
Subject: [PATCH] add registry

---
 web/static/src/ts/env.ts                     |  3 +-
 web/static/src/ts/main.ts                    | 12 ++++++-
 web/static/src/ts/registry.ts                | 36 ++++++++++++++++++++
 web/static/src/ts/services/action_manager.ts |  5 ++-
 4 files changed, 53 insertions(+), 3 deletions(-)
 create mode 100644 web/static/src/ts/registry.ts

diff --git a/web/static/src/ts/env.ts b/web/static/src/ts/env.ts
index 41eb94ce..e952c00b 100644
--- a/web/static/src/ts/env.ts
+++ b/web/static/src/ts/env.ts
@@ -1,6 +1,7 @@
 import { QWeb } from "./core/qweb_vdom";
 import { idGenerator, memoize } from "./core/utils";
 import { WEnv } from "./core/widget";
+import { registry } from "./registry";
 import { ActionManager, IActionManager } from "./services/action_manager";
 import { Ajax, IAjax } from "./services/ajax";
 import { IRouter, Router } from "./services/router";
@@ -46,7 +47,7 @@ export const makeEnvironment = memoize(function(): Env {
   const qweb = new QWeb();
   const router = new Router();
   const ajax = new Ajax();
-  const actionManager = new ActionManager(router);
+  const actionManager = new ActionManager(router, registry);
   const menus = [
     { title: "Discuss", actionID: 1 },
     { title: "CRM", actionID: 2 }
diff --git a/web/static/src/ts/main.ts b/web/static/src/ts/main.ts
index a9a2699b..ad8e9bdf 100644
--- a/web/static/src/ts/main.ts
+++ b/web/static/src/ts/main.ts
@@ -1,8 +1,18 @@
 ///<amd-module name="main" />
 
-import { RootWidget } from "./widgets/root_widget";
 import { makeEnvironment } from "./env";
+import { registry } from "./registry";
+import { Discuss } from "./widgets/discuss";
+import { RootWidget } from "./widgets/root_widget";
 
+//------------------------------------------------------------------------------
+// Prepare application registry
+//------------------------------------------------------------------------------
+registry.addAction("discuss", Discuss);
+
+//------------------------------------------------------------------------------
+// Application bootstrapping
+//------------------------------------------------------------------------------
 document.addEventListener("DOMContentLoaded", async function() {
   const env = makeEnvironment();
   const rootWidget = new RootWidget(env);
diff --git a/web/static/src/ts/registry.ts b/web/static/src/ts/registry.ts
new file mode 100644
index 00000000..a81a2ea4
--- /dev/null
+++ b/web/static/src/ts/registry.ts
@@ -0,0 +1,36 @@
+import { Widget } from "./core/widget";
+import { Env } from "./env";
+
+//------------------------------------------------------------------------------
+// Types
+//------------------------------------------------------------------------------
+interface Type<T> extends Function {
+  new (...args: any[]): T;
+}
+
+type ActionWidget = Type<Widget<Env>>;
+
+//------------------------------------------------------------------------------
+// Registry code
+//------------------------------------------------------------------------------
+export class Registry {
+  actions: { [key: string]: ActionWidget } = {};
+
+  addAction(name: string, action: ActionWidget): Registry {
+    return this.addToRegistry(this.actions, name, action);
+  }
+
+  private addToRegistry<T>(
+    map: { [k: string]: T },
+    name: string,
+    elem: T
+  ): Registry {
+    if (name in map) {
+      throw new Error(`Key ${name} already exists!`);
+    }
+    map[name] = elem;
+    return this;
+  }
+}
+
+export const registry = new Registry();
diff --git a/web/static/src/ts/services/action_manager.ts b/web/static/src/ts/services/action_manager.ts
index 71971906..dbe5d86e 100644
--- a/web/static/src/ts/services/action_manager.ts
+++ b/web/static/src/ts/services/action_manager.ts
@@ -1,6 +1,7 @@
 import { EventBus, Callback } from "../core/event_bus";
 import { Widget } from "../core/widget";
 import { Env } from "../env";
+import { Registry } from "../registry";
 import { CRM } from "../widgets/crm";
 import { Discuss } from "../widgets/discuss";
 import { Query, IRouter } from "./router";
@@ -50,11 +51,13 @@ const actions: any[] = [
 
 export class ActionManager extends EventBus implements IActionManager {
   router: IRouter;
+  registry: Registry;
   currentAction: ActionWidget | null = null;
 
-  constructor(router: IRouter) {
+  constructor(router: IRouter, registry: Registry) {
     super();
     this.router = router;
+    this.registry = registry;
     const query = this.router.getQuery();
     this.update(query);
     this.router.on("query_changed", this, this.update);