web/modal: add generic modal component

web/src/App.tsx

@@ -18,9 +18,10 @@ import { ScaleLoader } from "react-spinners"
 import Client from "./api/client.ts"
 import WSClient from "./api/wsclient.ts"
 import { ClientContext } from "./ui/ClientContext.ts"
-import { LightboxWrapper } from "./ui/Lightbox.tsx"
 import MainScreen from "./ui/MainScreen.tsx"
 import { LoginScreen, VerificationScreen } from "./ui/login"
+import { LightboxWrapper } from "./ui/modal/Lightbox.tsx"
+import { ModalWrapper } from "./ui/modal/Modal.tsx"
 import { useEventAsState } from "./util/eventdispatcher.ts"
 
 function App() {
@@ -53,7 +54,9 @@ function App() {
 	} else {
 		return <ClientContext value={client}>
 			<LightboxWrapper>
-				<MainScreen/>
+				<ModalWrapper>
+					<MainScreen/>
+				</ModalWrapper>
 			</LightboxWrapper>
 		</ClientContext>
 	}

web/src/ui/RoomView.tsx

@@ -17,8 +17,8 @@ import { use, useRef } from "react"
 import { getAvatarURL } from "@/api/media.ts"
 import { RoomStateStore } from "@/api/statestore"
 import { useNonNullEventAsState } from "@/util/eventdispatcher.ts"
-import { LightboxContext } from "./Lightbox.tsx"
 import MessageComposer from "./composer/MessageComposer.tsx"
+import { LightboxContext } from "./modal/Lightbox.tsx"
 import { RoomContext, RoomContextData } from "./roomcontext.ts"
 import TimelineView from "./timeline/TimelineView.tsx"
 import BackIcon from "@/icons/back.svg?react"

web/src/ui/modal/Lightbox.css

@@ -1,12 +1,17 @@
 div.overlay {
 	position: fixed;
 	inset: 0;
-	background-color: rgba(0, 0, 0, 0.75);
 	display: flex;
 	align-items: center;
 	justify-content: center;
 
-	&.lightbox > div.controls {
+	&.dimmed {
+		background-color: rgba(0, 0, 0, 0.75);
+	}
+}
+
+div.lightbox {
+	> div.controls {
 		position: fixed;
 		top: .5rem;
 		right: .5rem;
@@ -29,7 +34,7 @@ div.overlay {
 		}
 	}
 
-	&.lightbox > img {
+	> img {
 		max-width: 75%;
 		max-height: 75%;
 

web/src/ui/modal/Lightbox.tsx

@@ -14,12 +14,12 @@
 // 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 React, { Component, RefObject, createContext, createRef, useCallback, useState } from "react"
-import CloseIcon from "../icons/close.svg?react"
-import DownloadIcon from "../icons/download.svg?react"
-import RotateLeftIcon from "../icons/rotate-left.svg?react"
-import RotateRightIcon from "../icons/rotate-right.svg?react"
-import ZoomInIcon from "../icons/zoom-in.svg?react"
-import ZoomOutIcon from "../icons/zoom-out.svg?react"
+import CloseIcon from "@/icons/close.svg?react"
+import DownloadIcon from "@/icons/download.svg?react"
+import RotateLeftIcon from "@/icons/rotate-left.svg?react"
+import RotateRightIcon from "@/icons/rotate-right.svg?react"
+import ZoomInIcon from "@/icons/zoom-in.svg?react"
+import ZoomOutIcon from "@/icons/zoom-out.svg?react"
 import "./Lightbox.css"
 
 const isTouchDevice = window.ontouchstart !== undefined
@@ -158,7 +158,7 @@ export class Lightbox extends Component<LightboxProps> {
 
 	render() {
 		return <div
-			className="overlay lightbox"
+			className="overlay dimmed lightbox"
 			onClick={this.onClick}
 			onMouseMove={isTouchDevice ? undefined : this.onMouseMove}
 		>

web/src/ui/modal/Modal.tsx

@@ -0,0 +1,47 @@
+// gomuks - A Matrix client written in Go.
+// Copyright (C) 2024 Tulir Asokan
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// 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 React, { JSX, createContext, useCallback, useState } from "react"
+
+export interface ModalState {
+	content: JSX.Element
+	dimmed?: boolean
+	wrapperClass?: string
+	onClose?: () => void
+}
+
+type openModal = (state: ModalState) => void
+
+export const ModalContext = createContext<openModal>(() =>
+	console.error("Tried to open modal without being inside context"))
+
+export const ModalWrapper = ({ children }: { children: React.ReactNode }) => {
+	const [state, setState] = useState<ModalState | null>(null)
+	const onClose = useCallback(() => {
+		setState(null)
+		state?.onClose?.()
+	}, [state])
+	return <>
+		<ModalContext value={setState}>
+			{children}
+		</ModalContext>
+		{state && <div
+			className={`overlay ${state.wrapperClass ?? "modal"} ${state.dimmed ? "dimmed" : ""}`}
+			onClick={onClose}
+		>
+			{state.content}
+		</div>}
+	</>
+}

web/src/ui/timeline/TimelineEvent.tsx

@@ -19,7 +19,7 @@ import { useRoomState } from "@/api/statestore"
 import { MemDBEvent, MemberEventContent, UnreadType } from "@/api/types"
 import { isEventID } from "@/util/validation.ts"
 import { ClientContext } from "../ClientContext.ts"
-import { LightboxContext } from "../Lightbox.tsx"
+import { LightboxContext } from "../modal/Lightbox.tsx"
 import { useRoomContext } from "../roomcontext.ts"
 import EventMenu from "./EventMenu.tsx"
 import { ReplyIDBody } from "./ReplyBody.tsx"

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

@@ -16,7 +16,7 @@
 import React, { use } from "react"
 import { getAvatarURL } from "@/api/media.ts"
 import { MemberEventContent, UserID } from "@/api/types"
-import { LightboxContext } from "../../Lightbox.tsx"
+import { LightboxContext } from "../../modal/Lightbox.tsx"
 import EventContentProps from "./props.ts"
 
 function useChangeDescription(

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

@@ -17,7 +17,7 @@ import { CSSProperties, use } from "react"
 import { getEncryptedMediaURL, getMediaURL } from "@/api/media.ts"
 import type { EventType, MediaMessageEventContent } from "@/api/types"
 import { ImageContainerSize, calculateMediaSize } from "@/util/mediasize.ts"
-import { LightboxContext } from "../../Lightbox.tsx"
+import { LightboxContext } from "../../modal/Lightbox.tsx"
 import DownloadIcon from "@/icons/download.svg?react"
 
 export const useMediaContent = (