js: Convert static/js/todo_widget.js to ES6 module.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

.eslintrc.json

@@ -279,7 +279,6 @@
                 "message_view_header": false,
                 "templates": false,
                 "timerender": false,
-                "todo_widget": false,
                 "top_left_corner": false,
                 "topic_list": false,
                 "transmit": false,

frontend_tests/node_tests/widgetize.js

@@ -8,7 +8,6 @@ const {make_zjquery} = require("../zjsunit/zjquery");
 
 set_global("$", make_zjquery());
 const poll_widget = set_global("poll_widget", {});
-set_global("todo_widget", {});
 set_global("zform", {});
 set_global("document", "document-stub");
 

static/js/bundles/app.js

@@ -43,7 +43,6 @@ import "../top_left_corner";
 import "../stream_list";
 import "../filter";
 import "../poll_widget";
-import "../todo_widget";
 import "../zform";
 import "../widgetize";
 import "../submessage";

static/js/global.d.ts

@@ -144,7 +144,6 @@ declare let subs: any;
 declare let message_view_header: any;
 declare let templates: any;
 declare let timerender: any;
-declare let todo_widget: any;
 declare let stream_topic_history: any;
 declare let topic_list: any;
 declare let top_left_corner: any;

static/js/todo_widget.js

@@ -1,9 +1,7 @@
-"use strict";
+import render_widgets_todo_widget from "../templates/widgets/todo_widget.hbs";
+import render_widgets_todo_widget_tasks from "../templates/widgets/todo_widget_tasks.hbs";
 
-const render_widgets_todo_widget = require("../templates/widgets/todo_widget.hbs");
-const render_widgets_todo_widget_tasks = require("../templates/widgets/todo_widget_tasks.hbs");
-
-class TaskData {
+export class TaskData {
     task_map = new Map();
 
     get_new_index() {
@@ -120,9 +118,8 @@ class TaskData {
         }
     }
 }
-exports.TaskData = TaskData;
 
-exports.activate = function (opts) {
+export function activate(opts) {
     const elem = opts.elem;
     const callback = opts.callback;
 
@@ -181,6 +178,4 @@ exports.activate = function (opts) {
 
     render();
     render_results();
-};
-
-window.todo_widget = exports;
+}

static/js/widgetize.js

@@ -1,5 +1,7 @@
 "use strict";
 
+const todo_widget = require("./todo_widget");
+
 const widgets = new Map([
     ["poll", poll_widget],
     ["todo", todo_widget],