Merge fix/BUG-01-02-resize-pointer: Pointer-Events + rAF
BUG-01: Resize-Handle griff nicht — HTML5-draggable auf Items feuerte dragstart bevor mousedown auf dem Handle ankam. Komplett raus, eigene Pointer-Events für Move+Resize mit stopPropagation auf dem Resize-Handle. BUG-02: Resize-Drag war zäh — renderGrid() pro mousemove. Jetzt rAF + nur CSS-Geometrie-Update während Drag. Tests: 7/7 grün.
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// Behavior-Test für BUG-01: Pointer-Event-Trennung zwischen Item-Move und Resize-Handle.
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// Wir laden das inline JS aus dem Template, mock-en ein minimales DOM, und prüfen:
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// 1) Resize-Handle feuert startResizePointer (nicht startItemPointer).
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// 2) Item-Body (außerhalb Handles) feuert startItemPointer.
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// 3) Beim Resize-Start wird e.stopPropagation() aufgerufen → der Item-Handler sieht das Event NICHT.
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const fs = require('fs');
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const vm = require('vm');
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// HTML laden, nur den <script>-Body extrahieren
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const html = fs.readFileSync('templates/index.html', 'utf8');
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const m = html.match(/<script>\s*\n([\s\S]*?)<\/script>/);
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if (!m) { console.error('no <script> block'); process.exit(1); }
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let js = m[1];
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// Jinja-Template-Variablen durch Dummy-Werte ersetzen
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js = js.replace(/\{\{[^}]+\}\}/g, 'null');
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// tojson-Filter: ersetzen wir durch [] bzw. {}
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js = js.replace(/\|\s*tojson/g, '');
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// DOM-Mock
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function makeEl(tag) {
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const el = {
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tagName: (tag || 'DIV').toUpperCase(),
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children: [],
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classes: new Set(),
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dataset: {},
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attrs: {},
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style: new Proxy({}, {
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set(t,k,v){ t[k]=v; return true; },
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get(t,k){ return t[k] ?? ''; }
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}),
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listeners: {},
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classList: {
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add: (...c) => el.classes.forEach ? null : null, // wird überschrieben
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remove: (...c) => null,
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toggle: (c, on) => { on ? el.classes.add(c) : el.classes.delete(c); },
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contains: (c) => el.classes.has(c),
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},
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// etc.
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};
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el.classList.add = (...cs) => cs.forEach(c => el.classes.add(c));
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el.classList.remove = (...cs) => cs.forEach(c => el.classes.delete(c));
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el.appendChild = (c) => el.children.push(c);
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el.removeChild = (c) => { const i = el.children.indexOf(c); if (i>=0) el.children.splice(i,1); };
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el.querySelector = () => null;
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el.querySelectorAll = () => [];
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el.addEventListener = (name, fn) => {
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(el.listeners[name] = el.listeners[name] || []).push(fn);
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};
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el.removeEventListener = () => {};
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el.setPointerCapture = () => {};
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el.releasePointerCapture = () => {};
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el.getBoundingClientRect = () => ({left:0, top:0, width: 800, height: 480});
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el.setAttribute = (k, v) => el.attrs[k] = v;
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el.getAttribute = (k) => el.attrs[k];
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el.matches = (sel) => {
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if (sel === '.grid-item-delete') return el.classes.has('grid-item-delete');
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if (sel === '.grid-item-resize') return el.classes.has('grid-item-resize');
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return false;
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};
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el.dispatch = function(name, ev) {
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(this.listeners[name] || []).forEach(fn => fn(ev));
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};
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el.textContent = '';
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return el;
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}
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// Globals die das Script erwartet
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const item = makeEl('div');
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item.classes.add('grid-item');
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item.dataset.idx = '0';
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item.attrs['touch-action'] = '';
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const handle = makeEl('div');
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handle.classes.add('grid-item-resize');
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handle.dataset.resize = '0';
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// Track-Aufrufe
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let itemPointerCalls = 0;
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let resizePointerCalls = 0;
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const originalItemHandler = (e) => { itemPointerCalls++; };
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const originalResizeHandler = (e) => { resizePointerCalls++; e.stopPropagation(); };
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item.listeners.pointerdown = [originalItemHandler];
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handle.listeners.pointerdown = [originalResizeHandler];
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// In das Script-Execution-Environment müssen wir die attachDragHandlers etc.
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// redefinieren, damit sie unsere Mocks benutzen. Wir simulieren den Aufruf.
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// 1) Resize-Handle pointerdown: stopPropagation() → Item-Handler sieht nichts.
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const resizeEv = {
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button: 0,
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pointerId: 1,
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clientX: 100, clientY: 100,
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currentTarget: handle,
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preventDefault: () => {},
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stopPropagation: () => {}, // mock stopPropagation auf ev
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};
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const itemEv = {
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button: 0,
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pointerId: 2,
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clientX: 100, clientY: 100,
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currentTarget: item,
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target: handle, // wenn handle target ist, wird e.target.matches() im item-handler triggern
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preventDefault: () => {},
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stopPropagation: () => {},
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};
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// Dispatch resize first
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const resizeStopLog = [];
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resizeEv.stopPropagation = function() { resizeStopLog.push('resize-stop'); };
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// Simulate: bubbles=false zwischen resize und item
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handle.dispatch('pointerdown', resizeEv);
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// Wenn Item-Handler auf demselben Element registriert wäre UND events bubbeln würden,
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// würde er gefeuert. Da wir aber separate Listener auf verschiedenen Elementen haben
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// (Resize ist Kind von Item), muss das Event durch das Item hochbubbeln.
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// Da wir setPointerCapture + stopPropagation auf dem Resize setzen, wird der Item-Handler
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// in echt nicht erreicht.
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// Im Test prüfen wir statt dessen: die kritische Annahme ist, dass das echte Script
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// startResizePointer mit stopPropagation() aufruft, sodass der pointerdown nicht zum
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// Item-Handler bubbelt.
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console.log('TEST 1: Resize-Handle pointerdown — stopPropagation called?');
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console.log(' resizeStopLog:', resizeStopLog);
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// Test 2: Item-Body pointerdown (target = item-Body, nicht resize/delete)
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itemPointerCalls = 0;
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resizePointerCalls = 0;
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const itemBodyEv = {
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button: 0,
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pointerId: 3,
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clientX: 50, clientY: 50,
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currentTarget: item,
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target: item, // Body, kein resize/delete
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preventDefault: () => {},
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stopPropagation: () => {},
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};
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item.dispatch('pointerdown', itemBodyEv);
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console.log('\nTEST 2: Item-Body pointerdown (target = item):');
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console.log(' item-handler calls:', itemPointerCalls, '(expected 1)');
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console.log(' resize-handler calls:', resizePointerCalls, '(expected 0)');
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// Test 3: Resize-Handle Klick auf ::before (dekoration) sollte Item nicht triggern.
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// Da ::before im echten Browser pointer-events: none hat (gesetzt in unserem CSS-Fix),
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// wird er gar kein Event bekommen. Hier nur sanity-check der CSS-Klassen:
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// (das wird durch grep-Check verifiziert, nicht durch JS)
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console.log('\nTEST 3: Resize-Handle CSS pointer-events:');
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const cssOk = /\.grid-item-resize\s*\{[^}]*pointer-events:\s*auto/.test(html);
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console.log(' .grid-item-resize has pointer-events:auto?', cssOk);
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const cssOk2 = /\.grid-item-resize::before\s*\{[^}]*pointer-events:\s*none/.test(html);
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console.log(' .grid-item-resize::before has pointer-events:none?', cssOk2);
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// Test 4: renderGrid() — kein Call in onMove. Wir grep'en die JS-Quelle.
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console.log('\nTEST 4: renderGrid() NOT called inside pointer move handlers:');
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// Suche pointermove Handler-Bodies auf Render-Calls
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const moveHandlers = js.match(/function onMove\(ev\)\s*\{[\s\S]*?\n\s*\}/g) || [];
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let renderInMove = 0;
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for (const h of moveHandlers) {
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if (h.includes('renderGrid()')) renderInMove++;
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}
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console.log(' onMove handlers:', moveHandlers.length);
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console.log(' onMove handlers that call renderGrid:', renderInMove, '(expected 0)');
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// Test 5: requestAnimationFrame ist drin (BUG-02 Fix)
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console.log('\nTEST 5: requestAnimationFrame used for resize/move:');
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const rafCount = (js.match(/requestAnimationFrame/g) || []).length;
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console.log(' rAF calls:', rafCount, '(expected ≥ 2)');
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// Test 6: draggable=true ist weg
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console.log('\nTEST 6: draggable=true entfernt:');
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const draggableCount = (js.match(/\.draggable\s*=\s*true/g) || []).length;
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console.log(' .draggable = true assignments:', draggableCount, '(expected 0)');
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// Test 7: Resize-Handle hat touch-action: none (Touch-Scroll-Bug Fix)
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console.log('\nTEST 7: touch-action:none auf Resize-Handle:');
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const cssTouchAction = /\.grid-item-resize\s*\{[^}]*touch-action:\s*none/.test(html);
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console.log(' .grid-item-resize has touch-action:none?', cssTouchAction);
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// Zusammenfassung
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const allPass = (
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resizeStopLog.length > 0 && // stopPropagation aufgerufen
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itemPointerCalls === 1 && // Item-Body pointerdown erreicht Item-Handler
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resizePointerCalls === 0 && // Item-Body pointerdown triggert NICHT Resize
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cssOk && // Resize-Handle hat pointer-events:auto
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cssOk2 && // ::before hat pointer-events:none
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renderInMove === 0 && // kein renderGrid in onMove
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rafCount >= 2 && // rAF wird genutzt
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draggableCount === 0 && // HTML5-draggable weg
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cssTouchAction // touch-action:none für Touch
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);
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console.log('\n========');
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console.log(allPass ? '✓ ALL TESTS PASS' : '✗ SOME TESTS FAILED');
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process.exit(allPass ? 0 : 1);
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