1 files changed, 31 insertions, 13 deletions

diff --git a/src/client/util/DragManager.ts b/src/client/util/DragManager.ts
index 6386c87a0..dfd916e92 100644
--- a/src/client/util/DragManager.ts
+++ b/src/client/util/DragManager.ts
@@ -344,8 +344,7 @@ export namespace DragManager {
         }
         Object.assign(dragDiv.style, { width: '', height: '', overflow: '' });
         dragDiv.hidden = false;
-        const scaleXs: number[] = [],
-            scaleYs: number[] = [],
+        const scalings: number[] = [],
             xs: number[] = [],
             ys: number[] = [];
 
@@ -355,8 +354,15 @@ export namespace DragManager {
             top: Number.MAX_SAFE_INTEGER,
             bottom: Number.MIN_SAFE_INTEGER,
         };
+        let rot = 0;
         const docsToDrag = dragData instanceof DocumentDragData ? dragData.draggedDocuments : dragData instanceof AnchorAnnoDragData ? [dragData.dragDocument] : [];
         const dragElements = eles.map(ele => {
+            if (ele?.parentElement?.parentElement?.parentElement?.className === 'collectionFreeFormDocumentView-container') {
+                ele = ele.parentElement.parentElement.parentElement;
+                const rotStr = ele.style.transform.replace(/.*rotate\(([-0-9.]*)deg\).*/, '$1');
+                if (rotStr) rot = Number(rotStr);
+            }
+            if (rot < 0) rot += 360;
             if (!ele.parentNode) dragDiv.appendChild(ele);
             const dragElement = ele.parentNode === dragDiv ? ele : (ele.cloneNode(true) as HTMLElement);
             const children = Array.from(dragElement.children);
@@ -376,19 +382,29 @@ export namespace DragManager {
                 }
             }
             const rect = ele.getBoundingClientRect();
-            const scaleX = rect.width / (ele.offsetWidth || rect.width);
-            const scaleY = scaleX; //ele.offsetHeight ? rect.height / (ele.offsetHeight || rect.height) : scaleX;
+            const rotWidth = (rot > 45 && rot < 135) || (rot > 215 && rot < 305) ? rect.height : rect.width; //rect.width * Math.cos((rot * Math.PI) / 180) + rect.height * Math.sin((rot * Math.PI) / 180);
+            const scaling = rot ? rotWidth / ele.offsetWidth : rect.width / (ele.offsetWidth || rect.width);
 
             elesCont.left = Math.min(rect.left, elesCont.left);
             elesCont.top = Math.min(rect.top, elesCont.top);
             elesCont.right = Math.max(rect.right, elesCont.right);
             elesCont.bottom = Math.max(rect.bottom, elesCont.bottom);
-            xs.push(rect.left + (options?.offsetX || 0));
-            ys.push(rect.top + (options?.offsetY || 0));
-            scaleXs.push(scaleX);
-            scaleYs.push(scaleY);
+            const rotRad = (rot / 180) * Math.PI;
+            xs.push(
+                (rot > 90 && rot <= 270 ? rect.right : rect.left) + //
+                    (rot > 270 ? -scaling * (ele.offsetHeight * Math.sin(rotRad)) : 0) +
+                    (rot <= 90 || rot > 180 ? scaling * (ele.offsetHeight * Math.sin(rotRad)) : 0) +
+                    (options?.offsetX || 0)
+            );
+            ys.push(
+                rect.top + //
+                    (rot > 180 ? -scaling * (ele.offsetWidth * Math.sin(rotRad)) : 0) +
+                    (rot >= 90 && rot < 270 ? -scaling * (ele.offsetHeight * Math.cos(rotRad)) : 0) +
+                    (options?.offsetY || 0)
+            );
+            scalings.push(scaling);
             Object.assign(dragElement.style, {
-                opacity: '0.7',
+                opacity: '0',
                 position: 'absolute',
                 margin: '0',
                 top: '0',
@@ -399,9 +415,9 @@ export namespace DragManager {
                 borderRadius: getComputedStyle(ele).borderRadius,
                 zIndex: globalCssVariables.contextMenuZindex,
                 transformOrigin: '0 0',
-                width: `${rect.width / scaleX}px`,
-                height: `${rect.height / scaleY}px`,
-                transform: `translate(${xs[0]}px, ${ys[0]}px) scale(${scaleX}, ${scaleY})`,
+                width: rot ? '' : `${rect.width / scaling}px`,
+                height: rot ? '' : `${rect.height / scaling}px`,
+                transform: `translate(${xs[0]}px, ${ys[0]}px) rotate(${rot}deg)`,
             });
             dragLabel.style.transform = `translate(${xs[0]}px, ${ys[0] - 20}px)`;
 
@@ -415,6 +431,8 @@ export namespace DragManager {
             [dragElement, ...Array.from(dragElement.getElementsByTagName('*'))].forEach(ele => (ele as any).style && ((ele as any).style.pointerEvents = 'none'));
 
             dragDiv.appendChild(dragElement);
+            scalings[scalings.length - 1] = rect.width / dragElement.getBoundingClientRect().width;
+            setTimeout(() => (dragElement.style.opacity = '0.7'));
             if (dragElement !== ele) {
                 const children = [Array.from(ele.children), Array.from(dragElement.children)];
                 while (children[0].length) {
@@ -542,7 +560,7 @@ export namespace DragManager {
             const moveVec = { x: x - lastPt.x, y: y - lastPt.y };
             lastPt = { x, y };
 
-            dragElements.map((dragElement, i) => (dragElement.style.transform = `translate(${(xs[i] += moveVec.x)}px, ${(ys[i] += moveVec.y)}px)  scale(${scaleXs[i]}, ${scaleYs[i]})`));
+            dragElements.map((dragElement, i) => (dragElement.style.transform = `translate(${(xs[i] += moveVec.x)}px, ${(ys[i] += moveVec.y)}px) rotate(${rot}deg)  scale(${scalings[i]})`));
             dragLabel.style.transform = `translate(${xs[0]}px, ${ys[0] - 20}px)`;
         };
         const upHandler = (e: PointerEvent) => {