Add zoom & pan for all video modes

- Zoom now works for livestream, timelapse and daily videos - Added pan function: drag to move zoomed area with mouse - Added touch support for mobile pan - Added +/- zoom buttons and reset button - Reduced max zoom from 100x to 4x - Dynamically detects active video element - Pan limits based on zoom level - Cursor changes to grab when zoomed
2026-01-15 13:51:25 +00:00
parent c38bd130e5
commit 98f1fcae14
2 changed files with 231 additions and 28 deletions
@@ -1553,10 +1553,41 @@ nav ul li a:hover { color: #4CAF50; }
 }
 .zoom-value {
    font-weight: 700;
-    min-width: 60px;
-    text-align: right;
+    min-width: 50px;
+    text-align: center;
    color: #333;
 }
+.zoom-btn {
+    width: 36px;
+    height: 36px;
+    border: none;
+    border-radius: 50%;
+    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+    color: white;
+    font-size: 18px;
+    font-weight: bold;
+    cursor: pointer;
+    transition: transform 0.2s, box-shadow 0.2s;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+.zoom-btn:hover {
+    transform: scale(1.1);
+    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
+}
+.zoom-btn:active {
+    transform: scale(0.95);
+}
+.video-container {
+    cursor: default;
+}
+.video-container.zoomed {
+    cursor: grab;
+}
+.video-container.zoomed:active {
+    cursor: grabbing;
+}

 .tech-stat { justify-self: start; font-family: monospace; color: #555; }
 .bitrate-icon { color: #4CAF50; }
@@ -2031,9 +2062,11 @@ body.theme-neo footer {
        <!-- 
 CONTROLS -->
        <div id="zoom-controls" class="zoom-controls" aria-label="Zoom Steuerung">
-            <label for="zoom-range">Zoom</label>
-            <input type="range" id="zoom-range" class="zoom-slider" min="1" max="100" value="1" step="1">
-            <span id="zoom-value" class="zoom-value">1x</span>
+            <button type="button" onclick="adjustZoom(-0.5)" class="zoom-btn" title="Zoom out">−</button>
+            <input type="range" id="zoom-range" class="zoom-slider" min="1" max="4" value="1" step="0.5">
+            <span id="zoom-value" class="zoom-value">1.0x</span>
+            <button type="button" onclick="adjustZoom(0.5)" class="zoom-btn" title="Zoom in">+</button>
+            <button type="button" onclick="resetZoom()" class="zoom-btn" title="Reset">⟲</button>
        </div>

        <!-- VIDEO PLAYER CONTROLS (für Tagesvideos) -->
@@ -2260,7 +2293,7 @@ document.getElementById('qrcode')?.addEventListener('click', function() {
    window.zoomConfig = {
        enabled: true,
        minZoom: 1,
-        maxZoom: 100,
+        maxZoom: 4,
        defaultZoom: 1
    };
 </script>
@@ -1,37 +1,207 @@
+/**
+ * Video Zoom & Pan Controller
+ * - Zoom für alle Video-Modi (Live, Timelapse, Tagesvideo)
+ * - Pan-Funktion: Mit Maus den gezoomten Bereich verschieben
+ */
 (() => {
    const config = window.zoomConfig || {};
    if (!config.enabled) return;

-    const slider = document.getElementById('zoom-range');
-    const valueEl = document.getElementById('zoom-value');
-    if (!slider || !valueEl) return;
+    let currentZoom = 1;
+    let panX = 0;
+    let panY = 0;
+    let isDragging = false;
+    let startX = 0;
+    let startY = 0;

    const minZoom = Number(config.minZoom || 1);
-    const maxZoom = Number(config.maxZoom || 100);
+    const maxZoom = Number(config.maxZoom || 4);
    const defaultZoom = Number(config.defaultZoom || 1);

-    slider.min = minZoom;
-    slider.max = maxZoom;
-    slider.value = defaultZoom;
+    const slider = document.getElementById('zoom-range');
+    const valueEl = document.getElementById('zoom-value');

-    const targets = [
-        document.getElementById('webcam-player'),
-        document.getElementById('timelapse-image'),
-        document.getElementById('daily-video')
-    ].filter(Boolean);
+    // Finde das aktuell aktive Video-Element
+    function getActiveTarget() {
+        const webcam = document.getElementById('webcam-player');
+        const timelapse = document.getElementById('timelapse-image');
+        const daily = document.getElementById('daily-video');
+        const timelapseViewer = document.getElementById('timelapse-viewer');
+        const dailyPlayer = document.getElementById('daily-video-player');

-    const applyZoom = (zoomValue) => {
-        const zoom = Math.max(minZoom, Math.min(maxZoom, zoomValue));
-        valueEl.textContent = `${zoom}x`;
-        targets.forEach((el) => {
-            el.style.transform = `scale(${zoom})`;
-            el.style.transformOrigin = 'center center';
+        // Prüfe welches Element sichtbar ist
+        if (dailyPlayer && dailyPlayer.style.display !== 'none' && daily) {
+            return daily;
+        }
+        if (timelapseViewer && timelapseViewer.style.display !== 'none' && timelapse) {
+            return timelapse;
+        }
+        if (webcam) {
+            return webcam;
+        }
+        return null;
+    }
+
+    // Wende Zoom und Pan auf das aktive Element an
+    function applyTransform() {
+        const target = getActiveTarget();
+        if (!target) return;
+
+        // Bei Zoom 1x: Kein Pan erlaubt
+        if (currentZoom <= 1) {
+            panX = 0;
+            panY = 0;
+        }
+
+        // Begrenzen der Pan-Werte basierend auf Zoom
+        const maxPan = (currentZoom - 1) * 50; // Prozent
+        panX = Math.max(-maxPan, Math.min(maxPan, panX));
+        panY = Math.max(-maxPan, Math.min(maxPan, panY));
+
+        target.style.transform = `scale(${currentZoom}) translate(${panX}%, ${panY}%)`;
+        target.style.transformOrigin = 'center center';
+        target.style.transition = isDragging ? 'none' : 'transform 0.2s ease';
+
+        // Update UI
+        if (valueEl) valueEl.textContent = `${currentZoom.toFixed(1)}x`;
+        if (slider) slider.value = currentZoom;
+    }
+
+    // Zoom setzen
+    function setZoom(value) {
+        currentZoom = Math.max(minZoom, Math.min(maxZoom, value));
+        applyTransform();
+    }
+
+    // Zoom anpassen
+    function adjustZoom(delta) {
+        setZoom(currentZoom + delta);
+    }
+
+    // Zoom zurücksetzen
+    function resetZoom() {
+        currentZoom = 1;
+        panX = 0;
+        panY = 0;
+        applyTransform();
+    }
+
+    // Mouse Events für Pan
+    function setupPanEvents() {
+        const container = document.querySelector('.video-container');
+        if (!container) return;
+
+        container.addEventListener('mousedown', (e) => {
+            if (currentZoom <= 1) return;
+            isDragging = true;
+            startX = e.clientX;
+            startY = e.clientY;
+            container.style.cursor = 'grabbing';
+            e.preventDefault();
        });
-    };

-    applyZoom(defaultZoom);
+        document.addEventListener('mousemove', (e) => {
+            if (!isDragging) return;

-    slider.addEventListener('input', (event) => {
-        applyZoom(Number(event.target.value));
+            const dx = (e.clientX - startX) / 5; // Sensitivität anpassen
+            const dy = (e.clientY - startY) / 5;
+
+            panX += dx / currentZoom;
+            panY += dy / currentZoom;
+
+            startX = e.clientX;
+            startY = e.clientY;
+
+            applyTransform();
+        });
+
+        document.addEventListener('mouseup', () => {
+            if (isDragging) {
+                isDragging = false;
+                const container = document.querySelector('.video-container');
+                if (container) container.style.cursor = currentZoom > 1 ? 'grab' : 'default';
+            }
+        });
+
+        // Touch Events für Mobile
+        container.addEventListener('touchstart', (e) => {
+            if (currentZoom <= 1 || e.touches.length !== 1) return;
+            isDragging = true;
+            startX = e.touches[0].clientX;
+            startY = e.touches[0].clientY;
+        }, { passive: true });
+
+        container.addEventListener('touchmove', (e) => {
+            if (!isDragging || e.touches.length !== 1) return;
+
+            const dx = (e.touches[0].clientX - startX) / 5;
+            const dy = (e.touches[0].clientY - startY) / 5;
+
+            panX += dx / currentZoom;
+            panY += dy / currentZoom;
+
+            startX = e.touches[0].clientX;
+            startY = e.touches[0].clientY;
+
+            applyTransform();
+        }, { passive: true });
+
+        container.addEventListener('touchend', () => {
+            isDragging = false;
+        });
+
+        // Cursor anpassen bei Zoom
+        container.style.cursor = 'default';
+    }
+
+    // Slider Events
+    function setupSlider() {
+        if (!slider) return;
+
+        slider.min = minZoom;
+        slider.max = maxZoom;
+        slider.step = 0.5;
+        slider.value = defaultZoom;
+
+        slider.addEventListener('input', (e) => {
+            setZoom(Number(e.target.value));
+        });
+    }
+
+    // Globale Funktionen für Buttons
+    window.adjustZoom = adjustZoom;
+    window.resetZoom = resetZoom;
+    window.setZoom = setZoom;
+
+    // Initialisierung
+    document.addEventListener('DOMContentLoaded', () => {
+        setupSlider();
+        setupPanEvents();
+        currentZoom = defaultZoom;
+
+        // Warte kurz, damit Video-Elemente geladen sind
+        setTimeout(() => {
+            applyTransform();
+        }, 500);
+
+        // Update Cursor bei Zoom-Änderung
+        const container = document.querySelector('.video-container');
+        if (container) {
+            const observer = new MutationObserver(() => {
+                container.style.cursor = currentZoom > 1 ? 'grab' : 'default';
+            });
+        }
+    });
+
+    // Bei Moduswechsel Pan zurücksetzen
+    window.addEventListener('click', (e) => {
+        if (e.target.id === 'timelapse-button' ||
+            e.target.closest('#timelapse-button') ||
+            e.target.id === 'dvp-back-live' ||
+            e.target.closest('.play-link')) {
+            panX = 0;
+            panY = 0;
+            setTimeout(applyTransform, 100);
+        }
    });
 })();