feat(plugin): Image Zoom (#510)
Co-authored-by: Nuckyz <61953774+Nuckyz@users.noreply.github.com> Co-authored-by: Ven <vendicated@riseup.net>
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198
src/plugins/imageZoom/components/Magnifier.tsx
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198
src/plugins/imageZoom/components/Magnifier.tsx
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/*
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* Vencord, a modification for Discord's desktop app
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* Copyright (c) 2023 Vendicated and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import { FluxDispatcher, React, useRef, useState } from "@webpack/common";
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import { ELEMENT_ID } from "../constants";
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import { settings } from "../index";
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import { waitFor } from "../utils/waitFor";
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interface Vec2 {
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x: number,
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y: number;
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}
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export interface MagnifierProps {
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zoom: number;
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size: number,
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instance: any;
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}
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export const Magnifier: React.FC<MagnifierProps> = ({ instance, size: initialSize, zoom: initalZoom }) => {
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const [ready, setReady] = useState(false);
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const [lensPosition, setLensPosition] = useState<Vec2>({ x: 0, y: 0 });
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const [imagePosition, setImagePosition] = useState<Vec2>({ x: 0, y: 0 });
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const [opacity, setOpacity] = useState(0);
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const isShiftDown = useRef(false);
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const zoom = useRef(initalZoom);
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const size = useRef(initialSize);
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const element = useRef<HTMLDivElement | null>(null);
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const currentVideoElementRef = useRef<HTMLVideoElement | null>(null);
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const originalVideoElementRef = useRef<HTMLVideoElement | null>(null);
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const imageRef = useRef<HTMLImageElement | null>(null);
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// since we accessing document im gonna use useLayoutEffect
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React.useLayoutEffect(() => {
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const onKeyDown = (e: KeyboardEvent) => {
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if (e.key === "Shift") {
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isShiftDown.current = true;
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}
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};
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const onKeyUp = (e: KeyboardEvent) => {
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if (e.key === "Shift") {
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isShiftDown.current = false;
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}
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};
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const syncVideos = () => {
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currentVideoElementRef.current!.currentTime = originalVideoElementRef.current!.currentTime;
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};
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const updateMousePosition = (e: MouseEvent) => {
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if (instance.state.mouseOver && instance.state.mouseDown) {
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const offset = size.current / 2;
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const pos = { x: e.pageX, y: e.pageY };
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const x = -((pos.x - element.current!.getBoundingClientRect().left) * zoom.current - offset);
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const y = -((pos.y - element.current!.getBoundingClientRect().top) * zoom.current - offset);
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setLensPosition({ x: e.x - offset, y: e.y - offset });
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setImagePosition({ x, y });
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setOpacity(1);
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} else {
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setOpacity(0);
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}
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};
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const onMouseDown = (e: MouseEvent) => {
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if (instance.state.mouseOver && e.button === 0 /* left click */) {
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zoom.current = settings.store.zoom;
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size.current = settings.store.size;
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// close context menu if open
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if (document.getElementById("image-context")) {
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FluxDispatcher.dispatch({ type: "CONTEXT_MENU_CLOSE" });
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}
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updateMousePosition(e);
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setOpacity(1);
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}
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};
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const onMouseUp = () => {
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setOpacity(0);
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if (settings.store.saveZoomValues) {
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settings.store.zoom = zoom.current;
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settings.store.size = size.current;
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}
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};
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const onWheel = async (e: WheelEvent) => {
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if (instance.state.mouseOver && instance.state.mouseDown && !isShiftDown.current) {
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const val = zoom.current + ((e.deltaY / 100) * (settings.store.invertScroll ? -1 : 1)) * settings.store.zoomSpeed;
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zoom.current = val <= 1 ? 1 : val;
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updateMousePosition(e);
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}
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if (instance.state.mouseOver && instance.state.mouseDown && isShiftDown.current) {
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const val = size.current + (e.deltaY * (settings.store.invertScroll ? -1 : 1)) * settings.store.zoomSpeed;
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size.current = val <= 50 ? 50 : val;
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updateMousePosition(e);
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}
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};
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waitFor(() => instance.state.readyState === "READY", () => {
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const elem = document.getElementById(ELEMENT_ID) as HTMLDivElement;
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element.current = elem;
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elem.firstElementChild!.setAttribute("draggable", "false");
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if (instance.props.animated) {
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originalVideoElementRef.current = elem!.querySelector("video")!;
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originalVideoElementRef.current.addEventListener("timeupdate", syncVideos);
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setReady(true);
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} else {
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setReady(true);
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}
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});
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document.addEventListener("keydown", onKeyDown);
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document.addEventListener("keyup", onKeyUp);
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document.addEventListener("mousemove", updateMousePosition);
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document.addEventListener("mousedown", onMouseDown);
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document.addEventListener("mouseup", onMouseUp);
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document.addEventListener("wheel", onWheel);
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return () => {
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document.removeEventListener("keydown", onKeyDown);
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document.removeEventListener("keyup", onKeyUp);
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document.removeEventListener("mousemove", updateMousePosition);
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document.removeEventListener("mousedown", onMouseDown);
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document.removeEventListener("mouseup", onMouseUp);
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document.removeEventListener("wheel", onWheel);
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if (settings.store.saveZoomValues) {
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settings.store.zoom = zoom.current;
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settings.store.size = size.current;
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}
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};
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}, []);
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if (!ready) return null;
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const box = element.current!.getBoundingClientRect();
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return (
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<div
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className="lens"
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style={{
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opacity,
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width: size.current + "px",
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height: size.current + "px",
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transform: `translate(${lensPosition.x}px, ${lensPosition.y}px)`,
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}}
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>
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{instance.props.animated ?
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(
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<video
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ref={currentVideoElementRef}
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style={{
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position: "absolute",
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left: `${imagePosition.x}px`,
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top: `${imagePosition.y}px`
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}}
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width={`${box.width * zoom.current}px`}
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height={`${box.height * zoom.current}px`}
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poster={instance.props.src}
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src={originalVideoElementRef.current?.src ?? instance.props.src}
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autoPlay
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loop
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/>
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) : (
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<img
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ref={imageRef}
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style={{
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position: "absolute",
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transform: `translate(${imagePosition.x}px, ${imagePosition.y}px)`
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}}
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width={`${box.width * zoom.current}px`}
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height={`${box.height * zoom.current}px`}
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src={instance.props.src} alt=""
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/>
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)}
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</div>
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);
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};
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19
src/plugins/imageZoom/constants.ts
Normal file
19
src/plugins/imageZoom/constants.ts
Normal file
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@ -0,0 +1,19 @@
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/*
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* Vencord, a modification for Discord's desktop app
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* Copyright (c) 2023 Vendicated and contributors
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*
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|
* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
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|
* (at your option) any later version.
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*
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|
* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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export const ELEMENT_ID = "magnify-modal";
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234
src/plugins/imageZoom/index.tsx
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234
src/plugins/imageZoom/index.tsx
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@ -0,0 +1,234 @@
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/*
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* Vencord, a modification for Discord's desktop app
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* Copyright (c) 2023 Vendicated and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import "./styles.css";
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import { addContextMenuPatch, NavContextMenuPatchCallback, removeContextMenuPatch } from "@api/ContextMenu";
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import { definePluginSettings } from "@api/settings";
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import { makeRange } from "@components/PluginSettings/components";
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import { Devs } from "@utils/constants";
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import { debounce } from "@utils/debounce";
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import definePlugin, { OptionType } from "@utils/types";
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import { Menu, React, ReactDOM } from "@webpack/common";
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import type { Root } from "react-dom/client";
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import { Magnifier, MagnifierProps } from "./components/Magnifier";
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import { ELEMENT_ID } from "./constants";
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export const settings = definePluginSettings({
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saveZoomValues: {
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type: OptionType.BOOLEAN,
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description: "Whether to save zoom and lens size values",
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default: true,
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},
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preventCarouselFromClosingOnClick: {
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type: OptionType.BOOLEAN,
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// Thanks chat gpt
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description: "Allow the image modal in the image slideshow thing / carousel to remain open when clicking on the image",
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default: true,
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},
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invertScroll: {
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type: OptionType.BOOLEAN,
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description: "Invert scroll",
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default: true,
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},
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zoom: {
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description: "Zoom of the lens",
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type: OptionType.SLIDER,
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markers: makeRange(1, 50, 4),
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default: 2,
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stickToMarkers: false,
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},
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size: {
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description: "Radius / Size of the lens",
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type: OptionType.SLIDER,
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markers: makeRange(50, 1000, 50),
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default: 100,
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stickToMarkers: false,
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},
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zoomSpeed: {
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description: "How fast the zoom / lens size changes",
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type: OptionType.SLIDER,
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markers: makeRange(0.1, 5, 0.2),
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default: 0.5,
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stickToMarkers: false,
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},
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});
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const imageContextMenuPatch: NavContextMenuPatchCallback = (children, _) => {
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if (!children.some(child => child?.props?.id === "image-zoom")) {
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children.push(
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<Menu.MenuGroup id="image-zoom">
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{/* thanks SpotifyControls */}
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<Menu.MenuControlItem
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id="zoom"
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label="Zoom"
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control={(props, ref) => (
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<Menu.MenuSliderControl
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ref={ref}
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{...props}
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minValue={1}
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maxValue={50}
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value={settings.store.zoom}
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onChange={debounce((value: number) => settings.store.zoom = value, 100)}
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/>
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)}
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/>
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<Menu.MenuControlItem
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id="size"
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label="Lens Size"
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control={(props, ref) => (
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<Menu.MenuSliderControl
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ref={ref}
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{...props}
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minValue={50}
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maxValue={1000}
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value={settings.store.size}
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onChange={debounce((value: number) => settings.store.size = value, 100)}
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/>
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)}
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/>
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<Menu.MenuControlItem
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id="zoom-speed"
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label="Zoom Speed"
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control={(props, ref) => (
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<Menu.MenuSliderControl
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ref={ref}
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{...props}
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minValue={0.1}
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maxValue={5}
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value={settings.store.zoomSpeed}
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onChange={debounce((value: number) => settings.store.zoomSpeed = value, 100)}
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renderValue={(value: number) => `${value.toFixed(3)}x`}
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/>
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)}
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/>
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</Menu.MenuGroup>
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);
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}
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};
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export default definePlugin({
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name: "ImageZoom",
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description: "Lets you zoom in to images and gifs. Use scroll wheel to zoom in and shift + scroll wheel to increase lens radius / size",
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authors: [Devs.Aria],
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patches: [
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{
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find: '"renderLinkComponent","maxWidth"',
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replacement: {
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match: /(return\(.{1,100}\(\)\.wrapper.{1,100})(src)/,
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replace: `$1id: '${ELEMENT_ID}',$2`
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}
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},
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|
|
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{
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find: "handleImageLoad=",
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replacement: [
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{
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match: /(render=function\(\){.{1,500}limitResponsiveWidth.{1,600})onMouseEnter:/,
|
||||||
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replace: "$1...$self.makeProps(this),onMouseEnter:"
|
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},
|
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|
|
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{
|
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match: /componentDidMount=function\(\){/,
|
||||||
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replace: "$&$self.renderMagnifier(this);",
|
||||||
|
},
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|
|
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{
|
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match: /componentWillUnmount=function\(\){/,
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||||||
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replace: "$&$self.unMountMagnifier();"
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||||||
|
}
|
||||||
|
]
|
||||||
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},
|
||||||
|
|
||||||
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{
|
||||||
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find: ".carouselModal,",
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replacement: {
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||||||
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match: /onClick:(\i),/,
|
||||||
|
replace: "onClick:$self.settings.store.preventCarouselFromClosingOnClick ? () => {} : $1,"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
],
|
||||||
|
|
||||||
|
settings,
|
||||||
|
|
||||||
|
// to stop from rendering twice /shrug
|
||||||
|
currentMagnifierElement: null as React.FunctionComponentElement<MagnifierProps & JSX.IntrinsicAttributes> | null,
|
||||||
|
element: null as HTMLDivElement | null,
|
||||||
|
|
||||||
|
Magnifier,
|
||||||
|
root: null as Root | null,
|
||||||
|
makeProps(instance) {
|
||||||
|
return {
|
||||||
|
onMouseOver: () => this.onMouseOver(instance),
|
||||||
|
onMouseOut: () => this.onMouseOut(instance),
|
||||||
|
onMouseDown: (e: React.MouseEvent) => this.onMouseDown(e, instance),
|
||||||
|
onMouseUp: () => this.onMouseUp(instance),
|
||||||
|
id: instance.props.id,
|
||||||
|
};
|
||||||
|
},
|
||||||
|
|
||||||
|
renderMagnifier(instance) {
|
||||||
|
if (instance.props.id === ELEMENT_ID) {
|
||||||
|
if (!this.currentMagnifierElement) {
|
||||||
|
this.currentMagnifierElement = <Magnifier size={settings.store.size} zoom={settings.store.zoom} instance={instance} />;
|
||||||
|
this.root = ReactDOM.createRoot(this.element!);
|
||||||
|
this.root.render(this.currentMagnifierElement);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
|
||||||
|
unMountMagnifier() {
|
||||||
|
this.root?.unmount();
|
||||||
|
this.currentMagnifierElement = null;
|
||||||
|
this.root = null;
|
||||||
|
},
|
||||||
|
|
||||||
|
onMouseOver(instance) {
|
||||||
|
instance.setState((state: any) => ({ ...state, mouseOver: true }));
|
||||||
|
},
|
||||||
|
onMouseOut(instance) {
|
||||||
|
instance.setState((state: any) => ({ ...state, mouseOver: false }));
|
||||||
|
},
|
||||||
|
onMouseDown(e: React.MouseEvent, instance) {
|
||||||
|
if (e.button === 0 /* left */)
|
||||||
|
instance.setState((state: any) => ({ ...state, mouseDown: true }));
|
||||||
|
},
|
||||||
|
onMouseUp(instance) {
|
||||||
|
instance.setState((state: any) => ({ ...state, mouseDown: false }));
|
||||||
|
},
|
||||||
|
|
||||||
|
start() {
|
||||||
|
addContextMenuPatch("image-context", imageContextMenuPatch);
|
||||||
|
this.element = document.createElement("div");
|
||||||
|
this.element.classList.add("MagnifierContainer");
|
||||||
|
document.body.appendChild(this.element);
|
||||||
|
},
|
||||||
|
|
||||||
|
stop() {
|
||||||
|
// so componenetWillUnMount gets called if Magnifier component is still alive
|
||||||
|
this.root && this.root.unmount();
|
||||||
|
this.element?.remove();
|
||||||
|
removeContextMenuPatch("image-context", imageContextMenuPatch);
|
||||||
|
}
|
||||||
|
});
|
||||||
31
src/plugins/imageZoom/styles.css
Normal file
31
src/plugins/imageZoom/styles.css
Normal file
|
|
@ -0,0 +1,31 @@
|
||||||
|
.lens {
|
||||||
|
position: absolute;
|
||||||
|
inset: 0;
|
||||||
|
z-index: 9999;
|
||||||
|
border: 2px solid grey;
|
||||||
|
border-radius: 50%;
|
||||||
|
overflow: hidden;
|
||||||
|
cursor: none;
|
||||||
|
box-shadow: inset 0 0 10px 2px grey;
|
||||||
|
filter: drop-shadow(0 0 2px grey);
|
||||||
|
pointer-events: none;
|
||||||
|
}
|
||||||
|
|
||||||
|
.zoom img {
|
||||||
|
position: absolute;
|
||||||
|
top: 50%;
|
||||||
|
left: 50%;
|
||||||
|
transform: translate(-50%, -50%);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* make the carousel take up less space so we can click the backdrop and exit out of it */
|
||||||
|
[class^="focusLock"] > [class^="carouselModal"] {
|
||||||
|
height: fit-content;
|
||||||
|
box-shadow: none;
|
||||||
|
}
|
||||||
|
|
||||||
|
[class^="focusLock"] > [class^="carouselModal"] > div {
|
||||||
|
height: fit-content;
|
||||||
|
top: 50%;
|
||||||
|
transform: translateY(-50%);
|
||||||
|
}
|
||||||
22
src/plugins/imageZoom/utils/waitFor.ts
Normal file
22
src/plugins/imageZoom/utils/waitFor.ts
Normal file
|
|
@ -0,0 +1,22 @@
|
||||||
|
/*
|
||||||
|
* Vencord, a modification for Discord's desktop app
|
||||||
|
* Copyright (c) 2023 Vendicated and contributors
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU 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 General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
export function waitFor(condition: () => boolean, cb: () => void) {
|
||||||
|
if (condition()) cb();
|
||||||
|
else requestAnimationFrame(() => waitFor(condition, cb));
|
||||||
|
}
|
||||||
Loading…
Reference in a new issue