work on initialization

web/static/src/ts/env.ts

@@ -0,0 +1,71 @@
+import { QWeb } from "./core/qweb_vdom";
+import { idGenerator, memoize } from "./core/utils";
+import { TemplateLoader } from "./loaders/templates";
+import { actionRegistry } from "./registries";
+import { RPC } from "./services/ajax";
+import { ActionManager } from "./store/action_manager";
+import { Ajax } from "./store/ajax";
+import { NotificationManager } from "./store/notifications";
+import { Router } from "./store/router";
+import { Env } from "./widgets/widget";
+
+//------------------------------------------------------------------------------
+// Types
+//------------------------------------------------------------------------------
+
+interface Loaders {
+  loadTemplates: TemplateLoader;
+}
+
+interface Services {
+  rpc: RPC;
+}
+
+type EnvBuilder = (loaders: Loaders, services: Services) => Promise<Env>;
+//------------------------------------------------------------------------------
+// Environment
+//------------------------------------------------------------------------------
+
+/**
+ * init returns the main environment for the application.
+ *
+ * Note that it does not make much sense (except for tests) to have more than
+ * one environment. For example, with two environment, the router code in one
+ * environment will probably interfere with the code from the other environment.
+ *
+ * For this reason, the result of init is memoized: every call to
+ * this function will actually return the same environment.
+ */
+export const makeEnv: EnvBuilder = memoize(_makeEnv);
+
+async function _makeEnv(loaders: Loaders, services: Services): Promise<Env> {
+  // services
+  const qweb = new QWeb();
+  const router = new Router();
+  const ajax = new Ajax(services.rpc);
+  const actionManager = new ActionManager(actionRegistry, ajax);
+  const notifications = new NotificationManager();
+
+  // templates
+  const templates = await loaders.loadTemplates();
+  qweb.addTemplate("default", "<div/>");
+  qweb.loadTemplates(templates);
+
+  const env: Env = {
+    // Base widget requirements
+    qweb,
+    getID: idGenerator(),
+
+    actionManager,
+    ajax,
+    notifications,
+    actionRegistry,
+    router,
+
+    rpc: ajax.rpc,
+
+    debug: false,
+    isMobile: window.innerWidth <= 768
+  };
+  return env;
+}