Tweak controls for mobile devices

- Updated scenery zoom pan wrapper, track hover info and distance meter to work correctly on touch screen / mobile devices
- Fixed SideMenu still responding to tab navigation even if closed

src/components/map/ZoomPanWrapper.css

@@ -1,6 +1,8 @@
 .zoom-pan-wrapper {
     flex: 1;
     position: relative;
+    touch-action: none;
+    user-select: none;
 }
 
 .zoom-pan-wrapper svg {

src/components/map/ZoomPanWrapper.jsx

@@ -10,6 +10,13 @@ function boundZoom(zoom) {
     return Math.max(Constants.map.zoomMin, Math.min(Constants.map.zoomMax, zoom));
 }
 
+const getDistance = (a, b) => Math.hypot(a.x - b.x, a.y - b.y);
+const getAngle = (a, b) => Math.atan2(b.y - a.y, b.x - a.x) * 180 / Math.PI;
+const getMidpoint = (a, b) => ({
+    x: (a.x + b.x) / 2,
+    y: (a.y + b.y) / 2
+});
+
 export default function ZoomPanWrapper({children}) {
     const wrapperRef = useRef(null);
     const svgRef = useRef(null);
@@ -18,7 +25,9 @@ export default function ZoomPanWrapper({children}) {
     const cameraRef = useRef({ x: 0, y: 0, zoom: 1, rotation: 0 });
     const clientRectRef = useRef(null);
     const rafScheduledRef = useRef(false);
-    const isMouseDownRef = useRef(false);
+    const pointersRef = useRef(new Map());
+    const lastPointerRef = useRef(null);
+    const twoFingerStartRef = useRef(null);
 
     const getViewBoxString = () => {
         const { x, y, w, h } = viewBoxRef.current;
@@ -59,28 +68,157 @@ export default function ZoomPanWrapper({children}) {
         clientRectRef.current = rect;
     }, [updateViewBox]);
 
-    const handleRotation = (e) => {
+    const applyScreenPan = useCallback((dxScreen, dyScreen) => {
-        const deltaAngle = e.movementX * Constants.map.rotationSensitivity;
+        const { zoom, rotation } = cameraRef.current;
-        if(deltaAngle === 0) return;
+        const dx = dxScreen / zoom;
+        const dy = dyScreen / zoom;
+        const rad = AngleHelper.degToRad(rotation);
+        const cos = Math.cos(rad);
+        const sin = Math.sin(rad);
 
-        cameraRef.current.rotation = cameraRef.current.rotation + deltaAngle
+        cameraRef.current.x -= dx * cos + dy * sin;
+        cameraRef.current.y -= dy * cos - dx * sin;
+
+        scheduleCameraUpdate();
+    }, [scheduleCameraUpdate]);
+
+    const getScreenPoint = (clientX, clientY) => {
+        const rect = clientRectRef.current;
+        return {
+            x: clientX - rect.left - rect.width / 2,
+            y: clientY - rect.top - rect.height / 2
+        };
+    };
+
+    const screenPointToWorld = (point, camera) => {
+        const rad = AngleHelper.degToRad(camera.rotation);
+        const cos = Math.cos(rad);
+        const sin = Math.sin(rad);
+        const sx = point.x / camera.zoom;
+        const sy = point.y / camera.zoom;
+
+        return {
+            x: camera.x + sx * cos + sy * sin,
+            y: camera.y - sx * sin + sy * cos
+        };
+    };
+
+    const startTwoFingerGesture = (pointers) => {
+        const [first, second] = pointers;
+        const distance = getDistance(first, second);
+        const angle = getAngle(first, second);
+        const midpoint = getMidpoint(first, second);
+        const screenPoint = getScreenPoint(midpoint.x, midpoint.y);
+        const worldPoint = screenPointToWorld(screenPoint, cameraRef.current);
+
+        twoFingerStartRef.current = {
+            distance,
+            angle,
+            zoom: cameraRef.current.zoom,
+            rotation: cameraRef.current.rotation,
+            worldPoint
+        };
+    };
+
+    const updateTwoFingerGesture = (pointers) => {
+        const start = twoFingerStartRef.current;
+        if (!start) return;
+
+        const [first, second] = pointers;
+        const distance = getDistance(first, second);
+        const angle = getAngle(first, second);
+        const midpoint = getMidpoint(first, second);
+
+        const newZoom = boundZoom(start.zoom * (distance / start.distance));
+        const deltaAngle = AngleHelper.normalizeAngleDelta(angle - start.angle);
+        const newRotation = AngleHelper.normalizeDegAngle(start.rotation + deltaAngle);
+
+        const screenPoint = getScreenPoint(midpoint.x, midpoint.y);
+        const rad = AngleHelper.degToRad(newRotation);
+        const cos = Math.cos(rad);
+        const sin = Math.sin(rad);
+        const sx = screenPoint.x / newZoom;
+        const sy = screenPoint.y / newZoom;
+
+        cameraRef.current.zoom = newZoom;
+        cameraRef.current.rotation = newRotation;
+        cameraRef.current.x = start.worldPoint.x - (sx * cos + sy * sin);
+        cameraRef.current.y = start.worldPoint.y - (-sx * sin + sy * cos);
 
         scheduleCameraUpdate();
     };
 
-    const handleMove = (e) => {
+    const onPointerDown = (e) => {
-        const cx = e.movementX / cameraRef.current.zoom;
+        pointersRef.current.set(e.pointerId, { x: e.clientX, y: e.clientY });
-        const cy = e.movementY / cameraRef.current.zoom;
-        const cos = Math.cos(AngleHelper.degToRad(cameraRef.current.rotation));
-        const sin = Math.sin(AngleHelper.degToRad(cameraRef.current.rotation));
 
-        cameraRef.current.x -= cx * cos + cy * sin;
+        if (pointersRef.current.size === 1) {
-        cameraRef.current.y -= cy * cos - cx * sin;
+            lastPointerRef.current = { x: e.clientX, y: e.clientY };
-
+            twoFingerStartRef.current = null;
-        scheduleCameraUpdate();
+        } else if (pointersRef.current.size === 2) {
+            startTwoFingerGesture(Array.from(pointersRef.current.values()));
+            lastPointerRef.current = null;
+        }
     };
 
-    // update viewbox when the window resizes
+    const onPointerMove = (e) => {
+        if (!pointersRef.current.has(e.pointerId)) return;
+
+        pointersRef.current.set(e.pointerId, { x: e.clientX, y: e.clientY });
+
+        if (pointersRef.current.size === 1) {
+            const last = lastPointerRef.current;
+            if (!last) return;
+
+            const dx = e.clientX - last.x;
+            const dy = e.clientY - last.y;
+            lastPointerRef.current = { x: e.clientX, y: e.clientY };
+
+            if (e.pointerType === 'mouse' && e.altKey) {
+                const deltaAngle = dx * Constants.map.rotationSensitivity;
+                if (deltaAngle !== 0) {
+                    cameraRef.current.rotation += deltaAngle;
+                    scheduleCameraUpdate();
+                }
+            } else {
+                applyScreenPan(dx, dy);
+            }
+            return;
+        }
+
+        if (pointersRef.current.size >= 2) {
+            const firstTwo = Array.from(pointersRef.current.values()).slice(0, 2);
+            if (!twoFingerStartRef.current) {
+                startTwoFingerGesture(firstTwo);
+            } else {
+                updateTwoFingerGesture(firstTwo);
+            }
+        }
+    };
+
+    const onPointerUp = (e) => {
+        pointersRef.current.delete(e.pointerId);
+
+        if (pointersRef.current.size === 0) {
+            lastPointerRef.current = null;
+            twoFingerStartRef.current = null;
+            return;
+        }
+
+        if (pointersRef.current.size === 1) {
+            const remaining = Array.from(pointersRef.current.values())[0];
+            lastPointerRef.current = { x: remaining.x, y: remaining.y };
+            twoFingerStartRef.current = null;
+            return;
+        }
+
+        if (pointersRef.current.size >= 2) {
+            startTwoFingerGesture(Array.from(pointersRef.current.values()).slice(0, 2));
+            lastPointerRef.current = null;
+        }
+    };
+
+    const onPointerCancel = onPointerUp;
+
     useEffect(() => {
         window.addEventListener('resize', handleResize);
         handleResize(); // Initial call to set the viewBox
@@ -113,6 +251,8 @@ export default function ZoomPanWrapper({children}) {
     useZoomPanSubscriber(setCamera, alignView);
 
     const onWheel = (e) => {
+        if (!clientRectRef.current) return;
+
         const { left, top } = clientRectRef.current;
         const { x, y, zoom } = cameraRef.current;
         const { w, h } = viewBoxRef.current;
@@ -146,37 +286,16 @@ export default function ZoomPanWrapper({children}) {
         scheduleCameraUpdate();
     };
 
-    const onMouseDown = (e) => {
-        e.preventDefault();
-        isMouseDownRef.current = true;
-    };
-
-    const onMouseMove = (e) => {
-        if (!isMouseDownRef.current) return;
-        e.preventDefault();
-
-        if(e.altKey) {
-            handleRotation(e);
-        } else {
-            handleMove(e);
-        }
-    };
-
-    const onMouseUp = (e) => {
-        e.preventDefault();
-        isMouseDownRef.current = false;
-    };
-
     return (
         <div className="zoom-pan-wrapper" ref={wrapperRef}>
             <svg
                 ref={svgRef}
                 viewBox={getViewBoxString()}
                 onWheel={onWheel}
-                onMouseDown={onMouseDown}
+                onPointerDown={onPointerDown}
-                onMouseMove={onMouseMove}
+                onPointerMove={onPointerMove}
-                onMouseUp={onMouseUp}
+                onPointerUp={onPointerUp}
-                onMouseLeave={onMouseUp}
+                onPointerCancel={onPointerCancel}
             >
                 <g ref={cameraWrapperRef} transform={getCameraTransformString()}>
                     {children}
@@ -184,4 +303,4 @@ export default function ZoomPanWrapper({children}) {
             </svg>
         </div>
     );
-}
+}

src/components/map/distance-meter/DistanceMeter.jsx

@@ -1,4 +1,5 @@
-import { useContext, useEffect } from "react";
+import { useContext, useEffect, useRef, useCallback } from "react";
+import Constants from '../../../helpers/constants';
 import SceneryContext from "../../../contexts/SceneryContext";
 import DistanceMeterContext from "../../../contexts/DistanceMeterContext";
 import { getSVGCoords } from "./get-svg-coords";
@@ -7,8 +8,24 @@ import DistanceMeterView from "./DistanceMeterView";
 export default function DistanceMeter() {
     const { distancePoints, setDistancePoints } = useContext(DistanceMeterContext);
     const { scenery } = useContext(SceneryContext);
+    const pointersRef = useRef(new Set());
+    const mainPointerIdRef = useRef(null);
+    const pointerDownPosRef = useRef(null);
+    
+    const onPointerUp = useCallback((event) => {
+        const dx = pointerDownPosRef.current?.x - event.clientX;
+        const dy = pointerDownPosRef.current?.y - event.clientY;
 
-    const onClick = (event) => {
+        pointersRef.current.delete(event.pointerId);
+        if (mainPointerIdRef.current !== event.pointerId) return;
+        mainPointerIdRef.current = null;
+        pointerDownPosRef.current = null;
+
+        if (pointersRef.current.size > 0) return;
+
+        const dist = Math.sqrt(dx*dx + dy*dy);
+        if (dist > Constants.map.distanceMeterMaxMovePx) return;
+        
         setDistancePoints(oldDistancePoints => {
             if(!Array.isArray(oldDistancePoints)) return oldDistancePoints;
             const pos = getSVGCoords(event);
@@ -16,7 +33,26 @@ export default function DistanceMeter() {
 
             return [...oldDistancePoints, pos];
         });
-    }
+    }, [setDistancePoints]);
+
+    const onPointerDown = useCallback((event) => {
+        pointersRef.current.add(event.pointerId);
+        if(mainPointerIdRef.current !== null) return;
+
+        mainPointerIdRef.current = event.pointerId;
+        pointerDownPosRef.current = {
+            x: event.clientX,
+            y: event.clientY
+        };
+    }, []);
+
+    const onPointerLeave = useCallback((event) => {
+        pointersRef.current.delete(event.pointerId);
+        if (mainPointerIdRef.current !== event.pointerId) 
+
+        mainPointerIdRef.current = null;
+        pointerDownPosRef.current = null;
+    }, []);
 
     useEffect(() => {
         setDistancePoints([]);
@@ -32,7 +68,10 @@ export default function DistanceMeter() {
                 y={-scenery.bounds.maxZ}
                 width={scenery.bounds.maxX - scenery.bounds.minX}
                 height={scenery.bounds.maxZ - scenery.bounds.minZ}
-                onClick={onClick}
+                onPointerDown={onPointerDown}
+                onPointerUp={onPointerUp}
+                onPointerCancel={onPointerLeave}
+                onPointerLeave={onPointerLeave}
                 no-export="true"
             />
             <DistanceMeterView distancePoints={distancePoints} setDistancePoints={setDistancePoints} />

src/components/map/distance-meter/DistanceMeterCircle.jsx

@@ -1,11 +1,11 @@
-import { useRef } from 'react';
+import { useRef, useCallback } from 'react';
 import { getSVGCoords } from './get-svg-coords';
 
 export default function DistanceMeterCircle(props) {
     const { point, index, setDistancePoints } = props;
-    const isDragged = useRef(false);
+    const isDraggingRef = useRef(false);
 
-    const updatePointPosition = (event) => {
+    const updatePointPosition = useCallback((event) => {
         const pos = getSVGCoords(event);
         if (!pos) return;
 
@@ -15,57 +15,75 @@ export default function DistanceMeterCircle(props) {
             newPoints[index] = pos;
             return newPoints;
         });
-    }
+    }, [setDistancePoints, index]);
 
-    const removePoint = () => {
+    const removePoint = useCallback(() => {
         setDistancePoints(oldPoints => {
             if (!Array.isArray(oldPoints)) return oldPoints;
             const newPoints = [...oldPoints];
             newPoints.splice(index, 1);
             return newPoints;
         });
-    }
+    }, [setDistancePoints, index]);
 
-    const onMouseDown = (event) => {
+    const onPointerDown = useCallback((event) => {
         event.stopPropagation();
         event.preventDefault();
 
-        if (isDragged.current) return;
+        event.currentTarget.setPointerCapture(event.pointerId);
-        isDragged.current = true;
 
-        document.addEventListener('mousemove', onMouseMove);
+        isDraggingRef.current = true;
-        document.addEventListener('mouseup', onMouseUp, { once: true });
+    }, []);
-    }
 
-    const onMouseUp = (event) => {
+    const onPointerUp = useCallback((event) => {
         event.stopPropagation();
         event.preventDefault();
 
-        if (!isDragged.current) return;
+        if (!isDraggingRef.current) return;
-        isDragged.current = false;
 
-        document.removeEventListener('mousemove', onMouseMove);
+        if (event.currentTarget.hasPointerCapture(event.pointerId)) {
+            event.currentTarget.releasePointerCapture(event.pointerId);
+        }
+
+        isDraggingRef.current = false;
         updatePointPosition(event);
-    }
+    }, [updatePointPosition]);
 
-    const onMouseMove = (event) => {
+    const onPointerMove = useCallback((event) => {
-        if (!isDragged.current) return;
+        if (!isDraggingRef.current) return;
 
         event.stopPropagation();
         event.preventDefault();
         updatePointPosition(event);
-    }
+    }, [updatePointPosition]);
 
-    const onContextMenu = (event) => {
+    const onPointerCancel = useCallback((event) => {
+        if (event.currentTarget.hasPointerCapture(event.pointerId)) {
+            event.currentTarget.releasePointerCapture(event.pointerId);
+        }
+
+        isDraggingRef.current = false;
+    }, []);
+
+    const onContextMenu = useCallback((event) => {
         event.stopPropagation();
         event.preventDefault();
+
+        if (event.currentTarget.hasPointerCapture(event.pointerId)) {
+            event.currentTarget.releasePointerCapture(event.pointerId);
+        }
+
+        isDraggingRef.current = false;
         removePoint();
-    }
+    }, [removePoint]);
 
     return (
-        <g 
+        <g
             className="distance-meter-circle"
-            onMouseDown={onMouseDown}
+            onPointerDown={onPointerDown}
+            onPointerUp={onPointerUp}
+            onPointerMove={onPointerMove}
+            onPointerCancel={onPointerCancel}
             onContextMenu={onContextMenu}
         >
             <circle

src/components/map/distance-meter/DistanceMeterLine.jsx

@@ -13,7 +13,7 @@ export default function DistanceMeterLine(props) {
         });
     }
 
-    const onMouseDown = (event) => {
+    const onPointerDown = (event) => {
         event.stopPropagation();
         event.preventDefault();
         const pos = getSVGCoords(event);
@@ -33,7 +33,7 @@ export default function DistanceMeterLine(props) {
                 y2={end[1]}
                 stroke="transparent"
                 strokeWidth={3}
-                onMouseDown={onMouseDown}
+                onPointerDown={onPointerDown}
             />
             <line
                 x1={start[0]}

src/components/map/object-renderers/TrackRenderer.jsx

@@ -3,7 +3,7 @@ import SettingsContext from "../../../contexts/SettingsContext";
 import Constants from "../../../helpers/constants";
 import {ElectrificationStatus} from "../../../model/electrification-status";
 import MiscHelper from "../../../helpers/miscHelper";
-import {setHoveredTrack, unsetHoveredTrack} from "../../../services/trackHoverInfoService";
+import {setHoveredTrack, setTouchClickedTrack, unsetHoveredTrack} from "../../../services/trackHoverInfoService";
 import GradientsContext from "../../../contexts/GradientsContext";
 import { TrackShape, TrackSource } from "../../../model/tracks/track";
 import {useZoomPanEmitter} from "../../../hooks/useZoomPubSub";
@@ -36,16 +36,20 @@ function StatelessTrackRenderer(props) {
     const unscaledPathRef = React.useRef(null);
     const scaledPathRef = React.useRef(null);
 
+    const onClick = useCallback(() => {
+        setTouchClickedTrack(object);
+    }, [object]);
+
     const onMouseEnter = useCallback(() => {
         setHoveredTrack(object);
     }, [object]);
 
     const onMouseLeave = useCallback(() => {
-        unsetHoveredTrack(null);
+        unsetHoveredTrack(object);
-    }, []);
+    }, [object]);
 
-    const onClick = useCallback((event) => {
+    const onContextMenu = useCallback((event) => {
-        if (object.shape === TrackShape.STRAIGHT && event.detail === 2) {
+        if (object.shape === TrackShape.STRAIGHT) {
             event.preventDefault();
             onAlign(event);
         }
@@ -96,6 +100,7 @@ function StatelessTrackRenderer(props) {
                 className="track"
                 onMouseEnter={onMouseEnter}
                 onMouseLeave={onMouseLeave}
+                onContextMenu={onContextMenu}
                 onClick={onClick}
                 export-force-visible="true"
             />

src/components/map/track-hover-info/TrackHoverInfoPopup.jsx

@@ -9,7 +9,7 @@ export default function TrackHoverInfoPopup({track}) {
             <TrackHoverInfoPopupTable track={track} />
             {showAlignHint && (
                 <div className="track-hover-info-popup__align">
-                    Double click to align the view
+                    Right click to align the view
                 </div>
             )}
         </div>

src/components/sidemenu/SideMenu.jsx

@@ -15,14 +15,14 @@ export default function SideMenu() {
 
     return (
         <div className='side-menu-wrapper'>
-            <div className={sideMenuClass}>
+            <aside className={sideMenuClass} inert={!sideMenuOpen}>
                 <SceneryInfoButton />
                 <DistanceMeterButton />
                 <ExportViewButton />
                 <LayersMenu />
                 <LayerOptionsMenu />
                 <InfoFooter />
-            </div>
+            </aside>
         </div>
     );
 }

src/helpers/angleHelper.js

@@ -42,13 +42,20 @@ function normalizeDegVector(vector) {
     )
 }
 
+function normalizeAngleDelta(delta) {
+    if (delta > 180) delta -= 360;
+    if (delta < -180) delta += 360;
+    return delta;
+}
+
 const AngleHelper = {
     degToRad,
     radToDeg,
     vectorDegToRad,
     vectorRadToDeg,
     normalizeDegAngle,
-    normalizeDegVector
+    normalizeDegVector,
+    normalizeAngleDelta
 }
 
 export default AngleHelper;

src/helpers/constants.js

@@ -14,7 +14,8 @@ const Constants = {
         platformMaxTilt: 0.5,
         showDebugTrackIds: false,
         mapZoomTrackDetailsThreshold: 1 / 1.44,
-        mapZoomObjectDetailsThreshold: 0.5
+        mapZoomObjectDetailsThreshold: 0.5,
+        distanceMeterMaxMovePx: 10
     },
     parser: {
         logSceneryAfterFinished: readEnvBool('VITE_DO_LOG_SCENERY') ?? false,

src/services/trackHoverInfoService.js

@@ -2,6 +2,11 @@ import { BehaviorSubject } from 'rxjs';
 
 const hoveredTracksStack = [];
 export const hoveredTrack$ = new BehaviorSubject(null);
+export const touchClickedTrack$ = new BehaviorSubject(null);
+
+export function setTouchClickedTrack(track) {
+  touchClickedTrack$.next(track);
+}
 
 export function setHoveredTrack(track) {
   hoveredTracksStack.push(track);
@@ -16,4 +21,5 @@ export function unsetHoveredTrack(track) {
 export function resetHoveredTracksStack() {
   hoveredTracksStack.length = 0;
   hoveredTrack$.next(null);
+  touchClickedTrack$.next(null);
 }