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

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

.eslintrc.json

@@ -127,7 +127,6 @@
             "globals": {
                 "$": false,
                 "Filter": false,
-                "MessageListData": false,
                 "MessageListView": false,
                 "activity": false,
                 "admin": false,

frontend_tests/node_tests/message_fetch.js

@@ -20,7 +20,6 @@ function MessageListView() {
 set_global("MessageListView", MessageListView);
 
 const Filter = zrequire("Filter", "js/filter");
-zrequire("MessageListData", "js/message_list_data");
 const message_list = zrequire("message_list");
 const people = zrequire("people");
 

frontend_tests/node_tests/message_list.js

@@ -26,7 +26,6 @@ const narrow_state = set_global("narrow_state", {});
 const stream_data = set_global("stream_data", {});
 
 const muting = zrequire("muting");
-zrequire("MessageListData", "js/message_list_data");
 zrequire("MessageListView", "js/message_list_view");
 const {MessageList} = zrequire("message_list");
 

frontend_tests/node_tests/message_list_data.js

@@ -9,7 +9,7 @@ const muting = zrequire("muting");
 zrequire("unread");
 
 zrequire("Filter", "js/filter");
-const MessageListData = zrequire("MessageListData", "js/message_list_data");
+const {MessageListData} = zrequire("MessageListData", "js/message_list_data");
 
 set_global("page_params", {});
 

frontend_tests/node_tests/message_list_view.js

@@ -10,7 +10,6 @@ const {run_test} = require("../zjsunit/test");
 set_global("document", "document-stub");
 
 const Filter = zrequire("Filter", "js/filter");
-zrequire("MessageListData", "js/message_list_data");
 const MessageListView = zrequire("MessageListView", "js/message_list_view");
 const message_list = zrequire("message_list");
 

frontend_tests/node_tests/narrow_activate.js

@@ -13,7 +13,6 @@ set_global("resize", {
 });
 const stream_data = zrequire("stream_data");
 zrequire("Filter", "js/filter");
-zrequire("MessageListData", "js/message_list_data");
 zrequire("unread");
 const narrow = zrequire("narrow");
 

frontend_tests/node_tests/narrow_local.js

@@ -6,7 +6,7 @@ const {set_global, zrequire} = require("../zjsunit/namespace");
 const {run_test} = require("../zjsunit/test");
 
 const Filter = zrequire("Filter", "js/filter");
-const MessageListData = zrequire("MessageListData", "js/message_list_data");
+const {MessageListData} = zrequire("MessageListData", "js/message_list_data");
 const narrow_state = zrequire("narrow_state");
 const narrow = zrequire("narrow");
 zrequire("stream_data");

frontend_tests/node_tests/stream_data.js

@@ -20,7 +20,6 @@ const people = zrequire("people");
 const stream_color = zrequire("stream_color");
 const stream_data = zrequire("stream_data");
 zrequire("Filter", "js/filter");
-zrequire("MessageListData", "js/message_list_data");
 zrequire("MessageListView", "js/message_list_view");
 const message_list = zrequire("message_list");
 const settings_config = zrequire("settings_config");

static/js/bundles/app.js

@@ -44,7 +44,6 @@ import "../filter";
 import "../poll_widget";
 import "../widgetize";
 import "../submessage";
-import "../message_list_data";
 import "../message_list_view";
 import "../message_list";
 import "../message_live_update";

static/js/global.d.ts

@@ -4,7 +4,6 @@
 // to TS.
 
 declare let Filter: any;
-declare let MessageListData: any;
 declare let MessageListView: any;
 declare let activity: any;
 declare let admin: any;

static/js/message_list.js

@@ -2,6 +2,8 @@
 
 const autosize = require("autosize");
 
+const {MessageListData} = require("./message_list_data");
+
 exports.narrowed = undefined;
 exports.set_narrowed = function (value) {
     exports.narrowed = value;

static/js/message_list_data.js

@@ -1,11 +1,9 @@
-"use strict";
+import _ from "lodash";
 
-const _ = require("lodash");
+import {FetchStatus} from "./fetch_status";
+import * as util from "./util";
 
-const {FetchStatus} = require("./fetch_status");
-const util = require("./util");
-
-class MessageListData {
+export class MessageListData {
     constructor(opts) {
         this.excludes_muted_topics = opts.excludes_muted_topics;
         if (this.excludes_muted_topics) {
@@ -521,7 +519,3 @@ class MessageListData {
         return msg;
     }
 }
-
-module.exports = MessageListData;
-
-window.MessageListData = MessageListData;

static/js/narrow.js

@@ -1,5 +1,6 @@
 "use strict";
 
+const {MessageListData} = require("./message_list_data");
 const people = require("./people");
 const search_pill = require("./search_pill");
 const topic_generator = require("./topic_generator");