web/timeline: add click handlers for matrix URIs

web/src/ui/MainScreen.tsx

@@ -43,6 +43,7 @@ class ContextFields implements MainScreenContextFields {
 	) {
 		this.keybindings = new Keybindings(client.store, this)
 		client.store.switchRoom = this.setActiveRoom
+		window.mainScreenContext = this
 	}
 
 	setActiveRoom = (roomID: RoomID | null) => {

web/src/ui/MainScreenContext.ts

@@ -27,7 +27,7 @@ export interface MainScreenContextFields {
 	clickRightPanelOpener: (evt: React.MouseEvent) => void
 }
 
-const MainScreenContext = createContext<MainScreenContextFields>({
+const stubContext = {
 	get setActiveRoom(): never {
 		throw new Error("MainScreenContext used outside main screen")
 	},
@@ -46,6 +46,9 @@ const MainScreenContext = createContext<MainScreenContextFields>({
 	get clickRightPanelOpener(): never {
 		throw new Error("MainScreenContext used outside main screen")
 	},
-})
+}
+
+const MainScreenContext = createContext<MainScreenContextFields>(stubContext)
+window.mainScreenContext = stubContext
 
 export default MainScreenContext

web/src/ui/rightpanel/RightPanel.tsx

@@ -14,43 +14,55 @@
 // You should have received a copy of the GNU Affero General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 import { JSX, use } from "react"
+import type { UserID } from "@/api/types"
 import MainScreenContext from "../MainScreenContext.ts"
 import PinnedMessages from "./PinnedMessages.tsx"
 import CloseButton from "@/icons/close.svg?react"
 import "./RightPanel.css"
 
-export type RightPanelType = "pinned-messages" | "members"
+export type RightPanelType = "pinned-messages" | "members" | "user"
 
-export interface RightPanelProps {
-	type: RightPanelType
+interface RightPanelSimpleProps {
+	type: "pinned-messages" | "members"
 }
 
+interface RightPanelUserProps {
+	type: "user"
+	userID: UserID
+}
+
+export type RightPanelProps = RightPanelUserProps | RightPanelSimpleProps
+
 function getTitle(type: RightPanelType): string {
 	switch (type) {
 	case "pinned-messages":
 		return "Pinned Messages"
 	case "members":
 		return "Room Members"
+	case "user":
+		return "User Info"
 	}
 }
 
-function renderRightPanelContent({ type }: RightPanelProps): JSX.Element | null {
-	switch (type) {
+function renderRightPanelContent(props: RightPanelProps): JSX.Element | null {
+	switch (props.type) {
 	case "pinned-messages":
 		return <PinnedMessages />
 	case "members":
 		return <>Member list is not yet implemented</>
+	case "user":
+		return <>{props.userID}</>
 	}
 }
 
-const RightPanel = ({ type, ...rest }: RightPanelProps) => {
+const RightPanel = (props: RightPanelProps) => {
 	return <div className="right-panel">
 		<div className="right-panel-header">
-			<div className="panel-name">{getTitle(type)}</div>
+			<div className="panel-name">{getTitle(props.type)}</div>
 			<button onClick={use(MainScreenContext).closeRightPanel}><CloseButton/></button>
 		</div>
-		<div className={`right-panel-content ${type}`}>
-			{renderRightPanelContent({ type, ...rest })}
+		<div className={`right-panel-content ${props.type}`}>
+			{renderRightPanelContent(props)}
 		</div>
 	</div>
 }

web/src/ui/timeline/content/TextMessageBody.tsx

@@ -20,15 +20,42 @@ function isImageElement(elem: EventTarget): elem is HTMLImageElement {
 	return (elem as HTMLImageElement).tagName === "IMG"
 }
 
+function isAnchorElement(elem: EventTarget): elem is HTMLAnchorElement {
+	return (elem as HTMLAnchorElement).tagName === "A"
+}
+
+function onClickMatrixURI(href: string) {
+	const url = new URL(href)
+	const pathParts = url.pathname.split("/")
+	switch (pathParts[0]) {
+	case "u":
+		return window.mainScreenContext.setRightPanel({
+			type: "user",
+			userID: pathParts[1],
+		})
+	case "roomid":
+		return window.mainScreenContext.setActiveRoom(pathParts[1])
+	case "r":
+		return window.client.rpc.resolveAlias(`#${pathParts[1]}`).then(
+			res => window.mainScreenContext.setActiveRoom(res.room_id),
+			err => window.alert(`Failed to resolve room alias #${pathParts[1]}: ${err}`),
+		)
+	}
+}
+
 const onClickHTML = (evt: React.MouseEvent<HTMLDivElement>) => {
-	if (isImageElement(evt.target)) {
+	const targetElem = evt.target as HTMLElement
+	if (isImageElement(targetElem)) {
 		window.openLightbox({
-			src: evt.target.src,
-			alt: evt.target.alt,
+			src: targetElem.src,
+			alt: targetElem.alt,
 		})
-	} else if ((evt.target as HTMLElement).closest?.("span.hicli-spoiler")?.classList.toggle("spoiler-revealed")) {
+	} else if (targetElem.closest?.("span.hicli-spoiler")?.classList.toggle("spoiler-revealed")) {
 		// When unspoilering, don't trigger links and other clickables inside the spoiler
 		evt.preventDefault()
+	} else if (isAnchorElement(targetElem) && targetElem.href.startsWith("matrix:")) {
+		onClickMatrixURI(targetElem.href)
+		evt.preventDefault()
 	}
 }
 

web/src/vite-env.d.ts

@@ -2,10 +2,12 @@
 /// <reference types="vite-plugin-svgr/client" />
 
 import type Client from "@/api/client.ts"
+import type { MainScreenContextFields } from "@/ui/MainScreenContext.ts"
 
 declare global {
 	interface Window {
 		client: Client
+		mainScreenContext: MainScreenContextFields
 		openLightbox: (params: { src: string, alt: string }) => void
 	}
 }