Merge remote-tracking branch 'origin/main' into dbkr/widget-toggles-api

packages/element-web-module-api/src/api/custom-components.ts

@@ -5,8 +5,9 @@ SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
 Please see LICENSE files in the repository root for full details.
 */
 
-import type { JSX } from "react";
+import type { JSX, ReactNode } from "react";
 import type { MatrixEvent } from "../models/event";
+import type { AccountAuthInfo } from "./auth.ts";
 
 /**
  * Properties for all message components.
@@ -91,6 +92,71 @@ export type CustomRoomPreviewBarRenderFunction = (
     originalComponent: (props: CustomRoomPreviewBarComponentProps) => JSX.Element,
 ) => JSX.Element;
 
+/**
+ * Authentication server config object.
+ * @alpha Subject to change.
+ */
+export interface CustomLoginComponentPropsServerConfig {
+    /**
+     * The URL of the homeserver's client-server API
+     */
+    hsUrl: string;
+    /**
+     * The name of the homeserver to present to the user
+     */
+    hsName: string;
+}
+
+/**
+ * Properties for login component.
+ * @alpha Subject to change.
+ */
+export type CustomLoginComponentProps = {
+    /**
+     * The details of the currently chosen Matrix homeserver
+     */
+    serverConfig: CustomLoginComponentPropsServerConfig;
+    /**
+     * The URL fragment to send the user to after authentication is complete
+     */
+    fragmentAfterLogin?: string;
+    /**
+     * Additional components to render as children
+     */
+    children?: ReactNode;
+    /**
+     * Function to complete login
+     * @param data - the data to authenticate the user with
+     */
+    onLoggedIn(data: AccountAuthInfo): void;
+    /**
+     * Function to change the selected server
+     * @param config - new server configuration details
+     */
+    onServerConfigChange(config: CustomLoginComponentPropsServerConfig): void;
+};
+
+/**
+ * Function used to render a component with a superset of the known props.
+ * @alpha Unlikely to change
+ */
+export type ExtendablePropsRenderFunction<BaseProps> = <P extends BaseProps>(
+    /**
+     * Properties for the component to be rendered.
+     */
+    props: P,
+    /**
+     * Render function for the original component.
+     */
+    originalComponent: (props: P) => JSX.Element,
+) => JSX.Element;
+
+/**
+ * Function used to render a login component.
+ * @alpha Unlikely to change
+ */
+export type CustomLoginRenderFunction = ExtendablePropsRenderFunction<CustomLoginComponentProps>;
+
 /**
  * API for inserting custom components into Element.
  * @alpha Subject to change.
@@ -143,4 +209,19 @@ export interface CustomComponentsApi {
      * ```
      */
     registerRoomPreviewBar(renderer: CustomRoomPreviewBarRenderFunction): void;
+
+    /**
+     * Register a renderer for the login component.
+     *
+     * The render function should return a rendered component.
+     *
+     * @param renderer - The render function for the login component.
+     * @example
+     * ```
+     *  customComponents.registerLoginComponent((props, OriginalComponent) => {
+     *      return <YourCustomComponent onLoggedIn={props.onLoggedIn} />;
+     *  });
+     * ```
+     */
+    registerLoginComponent(renderer: CustomLoginRenderFunction): void;
 }

packages/element-web-module-api/src/api/customisations.ts

@@ -0,0 +1,65 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+
+/**
+ * Enum of UI components which can have their behaviour tweaked
+ * @alpha
+ */
+export const enum UIComponent {
+    /**
+     * Components that lead to a user being invited.
+     */
+    InviteUsers = "UIComponent.sendInvites",
+
+    /**
+     * Components that lead to a room being created that aren't already
+     * guarded by some other condition (ie: "only if you can edit this
+     * space" is *not* guarded by this component, but "start DM" is).
+     */
+    CreateRooms = "UIComponent.roomCreation",
+
+    /**
+     * Components that lead to a Space being created that aren't already
+     * guarded by some other condition (ie: "only if you can add subspaces"
+     * is *not* guarded by this component, but "create new space" is).
+     */
+    CreateSpaces = "UIComponent.spaceCreation",
+
+    /**
+     * Components that lead to the public room directory.
+     */
+    ExploreRooms = "UIComponent.exploreRooms",
+
+    /**
+     * Components that lead to the user being able to easily add widgets
+     * and integrations to the room, such as from the room information card.
+     */
+    AddIntegrations = "UIComponent.addIntegrations",
+
+    /**
+     * Component that lead to the user being able to search, dial, explore rooms
+     */
+    FilterContainer = "UIComponent.filterContainer",
+
+    /**
+     * Components that lead the user to room options menu.
+     */
+    RoomOptionsMenu = "UIComponent.roomOptionsMenu",
+}
+
+/**
+ * API for customising Element Web's components
+ * @alpha Subject to change.
+ */
+export interface CustomisationsApi {
+    /**
+     * Method to register a callback which can affect whether a given component is drawn or not.
+     * @param fn - the callback, if it returns true the component will be rendered, if false it will not be.
+     *   If undefined will defer to next callback, ultimately falling through to `true` if none return false.
+     */
+    registerShouldShowComponent(fn: (this: void, component: UIComponent) => boolean | void): void;
+}

packages/element-web-module-api/src/api/index.ts

@@ -22,6 +22,7 @@ import { type StoresApi } from "./stores.ts";
 import { type ClientApi } from "./client.ts";
 import { type WidgetLifecycleApi } from "./widget-lifecycle.ts";
 import { type WidgetApi } from "./widget.ts";
+import { type CustomisationsApi } from "./customisations.ts";
 
 /**
  * Module interface for modules to implement.
@@ -152,6 +153,12 @@ export interface Api
      */
     readonly widget: WidgetApi;
 
+    /**
+     * Allows modules to customise behaviour of app's components.
+     * @alpha Subject to change.
+     */
+    readonly customisations: CustomisationsApi;
+
     /**
      * Create a ReactDOM root for rendering React components.
      * Exposed to allow modules to avoid needing to bundle their own ReactDOM.

packages/element-web-module-api/src/index.ts

@@ -24,5 +24,7 @@ export type * from "./api/stores";
 export type * from "./api/client";
 export type * from "./api/widget-lifecycle";
 export type * from "./api/widget";
+export type * from "./api/customisations";
+export { UIComponent } from "./api/customisations";
 export * from "./api/watchable";
 export type * from "./utils";