Add new default home page fallback

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/structures/HomePage.tsx

@@ -0,0 +1,67 @@
+/*
+Copyright 2020 New Vector Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import * as React from "react";
+
+import AutoHideScrollbar from './AutoHideScrollbar';
+import { getHomePageUrl } from "../../utils/pages";
+import { _t } from "../../languageHandler";
+import SdkConfig from "../../SdkConfig";
+import * as sdk from "../../index";
+import dis from "../../dispatcher";
+
+
+const onClickSendDm = () => dis.dispatch({action: 'view_create_chat'});
+const onClickExplore = () => dis.dispatch({action: 'view_room_directory'});
+const onClickNewRoom = () => dis.dispatch({action: 'view_create_room'});
+
+const HomePage = () => {
+    const config = SdkConfig.get();
+    const pageUrl = getHomePageUrl(config);
+
+    if (pageUrl) {
+        const EmbeddedPage = sdk.getComponent('structures.EmbeddedPage');
+        return <EmbeddedPage className="mx_HomePage" url={pageUrl} scrollbar={true} />;
+    }
+
+    const brandingConfig = config.branding;
+    let logoUrl = "themes/riot/img/logos/riot-logo.svg";
+    if (brandingConfig && brandingConfig.authHeaderLogoUrl) {
+        logoUrl = brandingConfig.authHeaderLogoUrl;
+    }
+
+    const AccessibleButton = sdk.getComponent("elements.AccessibleButton");
+    return <AutoHideScrollbar className="mx_HomePage mx_HomePage_default">
+        <div className="mx_HomePage_default_wrapper">
+            <img src={logoUrl} alt="Riot" />
+            <h1>{ _t("Welcome to %(appName)s", { appName: config.brand || "Riot" }) }</h1>
+            <h4>{ _t("Liberate your communication") }</h4>
+            <div className="mx_HomePage_default_buttons">
+                <AccessibleButton onClick={onClickSendDm} className="mx_HomePage_button_sendDm">
+                    { _t("Send a Direct Message") }
+                </AccessibleButton>
+                <AccessibleButton onClick={onClickExplore} className="mx_HomePage_button_explore">
+                    { _t("Explore Public Rooms") }
+                </AccessibleButton>
+                <AccessibleButton onClick={onClickNewRoom} className="mx_HomePage_button_createGroup">
+                    { _t("Create a Group Chat") }
+                </AccessibleButton>
+            </div>
+        </div>
+    </AutoHideScrollbar>;
+};
+
+export default HomePage;