Release v1.5.12

src/web/public/js/templates/template-designer.js

@@ -36,10 +36,26 @@
   var regionCardTemplate = document.getElementById('region-card-template');
   var regionsJsonInput = document.getElementById('regions-json');
   var templateForm = document.getElementById('template-form');
+  var templateRegionUsageElement = document.getElementById('template-region-usage');
+  var regionUsageSet = new Set();
   var draft = null;
   var selectedIndex = -1;
   var overlayRenderFrame = 0;
 
+  try {
+    var regionUsageData = JSON.parse((templateRegionUsageElement && templateRegionUsageElement.textContent) || '[]');
+    if (Array.isArray(regionUsageData)) {
+      regionUsageData.forEach(function (regionKey) {
+        var normalized = String(regionKey || '').trim();
+        if (normalized) {
+          regionUsageSet.add(normalized);
+        }
+      });
+    }
+  } catch (_error) {
+    regionUsageSet = new Set();
+  }
+
   function escapeHtml(value) {
     return utils.escapeHtml ? utils.escapeHtml(value) : String(value === undefined || value === null ? '' : value);
   }
@@ -357,6 +373,21 @@
     updateRegionLockBadge(card);
   }
 
+  function setRegionRemovalState(card) {
+    var removeButton = card.querySelector('[data-region-remove-button]');
+    if (!removeButton) {
+      return;
+    }
+    var regionKey = String(card.dataset.regionKey || getRegionName(card) || '').trim();
+    var regionDeletionLocked = regionUsageSet.has(regionKey);
+    removeButton.disabled = regionDeletionLocked;
+    if (regionDeletionLocked) {
+      removeButton.title = 'Regions cannot be deleted while this template is used by slides.';
+    } else {
+      removeButton.removeAttribute('title');
+    }
+  }
+
   function updateRegionLabel(card) {
     var label = getRegionName(card) || 'Region';
     var cards = getCards();
@@ -379,6 +410,8 @@
       card.className = 'card card-outline card-secondary admin-form-card region-item mb-3';
     }
     populateRegionCard(card, region);
+    card.dataset.regionKey = String(region.region_key || region.label || getRegionName(card) || '').trim();
+    setRegionRemovalState(card);
     var nameInput = card.querySelector('[name="region_name[]"]');
     var lockRatioInput = card.querySelector('[name="region_lock_ratio[]"]');
     var widthInput = card.querySelector('[name="region_width[]"]');
@@ -415,12 +448,12 @@
       });
     }
     card.addEventListener('click', function (event) {
-      if (event.target && event.target.classList && event.target.classList.contains('remove-region')) {
+      if (event.target && event.target.closest && event.target.closest('[data-region-remove-button]')) {
         return;
       }
       setSelected(getCards().indexOf(card));
     });
-    card.querySelector('.remove-region').addEventListener('click', function (event) {
+    card.querySelector('[data-region-remove-button]').addEventListener('click', function (event) {
       event.preventDefault();
       card.remove();
       if (!getCards().length) {
@@ -523,7 +556,9 @@
     if (hint) {
       hint.remove();
     }
-    regionList.appendChild(makeRegionCard(region));
+    var card = makeRegionCard(region);
+    setRegionRemovalState(card);
+    regionList.appendChild(card);
     setSelected(getCards().length - 1);
   }
 
@@ -600,8 +635,12 @@
       var currentPoint = toCanvasPoint(moveEvent);
       var dx = currentPoint.x - startPoint.x;
       var dy = currentPoint.y - startPoint.y;
-      var next = clampRegion({ x: startRegion.x + dx, y: startRegion.y + dy, width: startRegion.width, height: startRegion.height });
-      writeCard(cardAt(index), { x: next.x, y: next.y });
+      var size = getCanvasSize();
+      var maxX = Math.max(0, size.width - startRegion.width);
+      var maxY = Math.max(0, size.height - startRegion.height);
+      var nextX = clamp(startRegion.x + dx, 0, maxX);
+      var nextY = clamp(startRegion.y + dy, 0, maxY);
+      writeCard(cardAt(index), { x: nextX, y: nextY, width: startRegion.width, height: startRegion.height });
       requestOverlayRender();
     }
     function upHandler() {
@@ -617,6 +656,24 @@
     var startRegion = readCard(cardAt(index));
     var lockRatio = normalizeLockRatio(startRegion.lock_ratio);
     var aspect = lockRatio ? parseLockRatio(lockRatio) : null;
+    var canvasSize = getCanvasSize();
+    var minSize = 12;
+
+    function clampResizeDelta(dx, dy) {
+      if (dir.indexOf('w') !== -1) {
+        dx = clamp(dx, -startRegion.x, startRegion.width - minSize);
+      }
+      if (dir.indexOf('e') !== -1) {
+        dx = clamp(dx, minSize - startRegion.width, canvasSize.width - startRegion.x - startRegion.width);
+      }
+      if (dir.indexOf('n') !== -1) {
+        dy = clamp(dy, -startRegion.y, startRegion.height - minSize);
+      }
+      if (dir.indexOf('s') !== -1) {
+        dy = clamp(dy, minSize - startRegion.height, canvasSize.height - startRegion.y - startRegion.height);
+      }
+      return { dx: dx, dy: dy };
+    }
 
     function fitFromWidth(width) {
       var nextWidth = Math.max(12, Math.round(width));
@@ -638,6 +695,9 @@
       var currentPoint = toCanvasPoint(moveEvent);
       var dx = currentPoint.x - startPoint.x;
       var dy = currentPoint.y - startPoint.y;
+      var constrainedDelta = clampResizeDelta(dx, dy);
+      dx = constrainedDelta.dx;
+      dy = constrainedDelta.dy;
       var next = { x: startRegion.x, y: startRegion.y, width: startRegion.width, height: startRegion.height };
       if (aspect) {
         if (dir === 'e') {
@@ -748,7 +808,6 @@
     }
     event.preventDefault();
     setSelected(-1);
-    startDraw(event);
   });
   if (templateForm) {
     templateForm.addEventListener('formdata', function (event) {