Smooth compass and strengthen map selection

wwwroot/js/lme-map.js

@@ -70,6 +70,11 @@ const lmeState = {
     compassVisible: false,
     compassMode: "fixed",
     compassHeading: 0,
+    compassDisplayRotation: 0,
+    compassTargetRotation: 0,
+    compassHeadingInitialized: false,
+    compassAnimationFrame: null,
+    compassAnimationTime: 0,
     compassPosition: null,
     compassDragCleanup: null,
     compassResizeHandler: null,
@@ -87,6 +92,7 @@ const lmeState = {
     managerHighlightedParentRecords: null,
     managerHoveredParentKey: null,
     managerHoveredParentRecords: null,
+    managerDirectHighlightStyles: new Map(),
     managerOutsideSelectionBound: false,
     managerHiddenObjects: new Map(),
     managerHiddenObjectIds: new Set(),
@@ -496,6 +502,7 @@ function createCompassLayer() {
             updateCompassDisplay();
         },
         onRemove(map) {
+            stopCompassAnimation();
             lmeState.compassDragCleanup?.();
             lmeState.compassDragCleanup = null;
             if (lmeState.compassResizeHandler) {
@@ -623,6 +630,7 @@ function setCompassOptions(visible, mode = "fixed") {
             lmeState.compassLayer.addTo(lmeState.map);
         }
     } else {
+        stopCompassAnimation();
         lmeState.managerHiddenCategories.add("compass");
         if (lmeState.map.hasLayer(lmeState.compassLayer)) {
             lmeState.map.removeLayer(lmeState.compassLayer);
@@ -641,19 +649,67 @@ function setCompassOptions(visible, mode = "fixed") {
 function setCompassHeading(heading) {
     const parsed = Number(heading);
     if (!Number.isFinite(parsed)) return;
-    lmeState.compassHeading = ((parsed % 360) + 360) % 360;
+    const normalizedHeading = ((parsed % 360) + 360) % 360;
+    const requestedRotation = -normalizedHeading;
+    lmeState.compassHeading = normalizedHeading;
+    if (!lmeState.compassHeadingInitialized) {
+        lmeState.compassHeadingInitialized = true;
+        lmeState.compassDisplayRotation = requestedRotation;
+        lmeState.compassTargetRotation = requestedRotation;
+        updateCompassDisplay();
+    } else {
+        const delta = shortestAngleDelta(lmeState.compassTargetRotation, requestedRotation);
+        if (Math.abs(delta) >= 0.15) {
+            lmeState.compassTargetRotation += delta;
+            startCompassAnimation();
+        }
+    }
     if (lmeState.compassVisible && lmeState.compassMode === "heading") {
         lmeState.map?.setHeading?.(lmeState.compassHeading, { ease: 0.2, deadzone: 1 });
     }
+}
+
+function shortestAngleDelta(from, to) {
+    return ((((to - from) + 180) % 360) + 360) % 360 - 180;
+}
+
+function startCompassAnimation() {
+    if (lmeState.compassAnimationFrame !== null) return;
+    lmeState.compassAnimationTime = 0;
+    lmeState.compassAnimationFrame = requestAnimationFrame(animateCompass);
+}
+
+function animateCompass(timestamp) {
+    lmeState.compassAnimationFrame = null;
+    const elapsed = lmeState.compassAnimationTime
+        ? Math.min(50, Math.max(1, timestamp - lmeState.compassAnimationTime))
+        : 16;
+    lmeState.compassAnimationTime = timestamp;
+    const difference = lmeState.compassTargetRotation - lmeState.compassDisplayRotation;
+    const smoothing = 1 - Math.exp(-elapsed / 85);
+    lmeState.compassDisplayRotation += difference * smoothing;
+    if (Math.abs(difference) < 0.05) {
+        lmeState.compassDisplayRotation = lmeState.compassTargetRotation;
+        lmeState.compassAnimationTime = 0;
+    } else {
+        lmeState.compassAnimationFrame = requestAnimationFrame(animateCompass);
+    }
     updateCompassDisplay();
 }
 
+function stopCompassAnimation() {
+    if (lmeState.compassAnimationFrame !== null) {
+        cancelAnimationFrame(lmeState.compassAnimationFrame);
+        lmeState.compassAnimationFrame = null;
+    }
+    lmeState.compassAnimationTime = 0;
+}
+
 function updateCompassDisplay() {
     const element = lmeState.compassElement;
     if (!element) return;
-    const rotation = -lmeState.compassHeading;
     element.classList.toggle("is-fixed", lmeState.compassMode === "fixed");
-    element.style.setProperty("--compass-rotation", `${rotation}deg`);
+    element.style.setProperty("--compass-rotation", `${lmeState.compassDisplayRotation}deg`);
     element.setAttribute("aria-label", lmeState.compassMode === "fixed"
         ? `Bussola: mappa con nord fisso, orientamento ${Math.round(lmeState.compassHeading)} gradi`
         : `Bussola: nord, orientamento ${Math.round(lmeState.compassHeading)} gradi`);
@@ -4085,7 +4141,9 @@ function renderSelectedManagerHighlight() {
 }
 
 function renderManagerHighlight(records) {
+    restoreDirectManagerHighlights();
     lmeState.managerHighlight?.clearLayers();
+    records.forEach(record => applyDirectManagerHighlight(record.layer));
     const features = records.flatMap(record => {
         const geojson = record.layer?.toGeoJSON?.();
         if (!geojson) {
@@ -4112,7 +4170,36 @@ function renderManagerHighlight(records) {
     }).addTo(lmeState.managerHighlight);
 }
 
+function applyDirectManagerHighlight(layer) {
+    if (!layer || typeof layer.setStyle !== "function" || lmeState.managerDirectHighlightStyles.has(layer)) return;
+    const options = layer.options || {};
+    lmeState.managerDirectHighlightStyles.set(layer, {
+        color: options.color,
+        weight: options.weight,
+        opacity: options.opacity,
+        fillColor: options.fillColor,
+        fillOpacity: options.fillOpacity,
+        dashArray: options.dashArray ?? null
+    });
+    layer.setStyle({
+        color: "#ff00d4",
+        weight: Math.max(7, (Number(options.weight) || 2) + 4),
+        opacity: 1,
+        fillColor: "#00fff0",
+        fillOpacity: 0.34,
+        dashArray: null
+    });
+}
+
+function restoreDirectManagerHighlights() {
+    lmeState.managerDirectHighlightStyles.forEach((style, layer) => {
+        if (typeof layer?.setStyle === "function") layer.setStyle(style);
+    });
+    lmeState.managerDirectHighlightStyles.clear();
+}
+
 function clearManagerHighlight() {
+    restoreDirectManagerHighlights();
     lmeState.managerHighlight?.clearLayers();
     lmeState.managerHighlightedObjectId = null;
     lmeState.managerHighlightedCategoryKey = null;