chore: Improvements in image attachment viewer (#11040)

This PR includes improvements in image attachment/gallery viewer:

1. Added double-click zoom functionality (depreciated click to zoom)
2. Implemented scroll zoom based on cursor position
3. Increase the zoom scale
4. Improved layout and styling for better usability

Fixes
https://linear.app/chatwoot/issue/CW-4127/zoom-images-from-a-specific-location


## How Has This Been Tested?

Loom video

https://www.loom.com/share/b21e00db3bc74231a90202eb6eb2fb5a?sid=a0651bf1-0952-430b-a5a9-83bf0858e059

---------

Co-authored-by: Pranav <pranav@chatwoot.com>
Co-authored-by: Shivam Mishra <scm.mymail@gmail.com>

app/javascript/dashboard/components/widgets/conversation/components/GalleryView.vue

@@ -1,10 +1,11 @@
 <script setup>
-import { ref, computed, onMounted } from 'vue';
+import { ref, computed, onMounted, useTemplateRef } from 'vue';
 import { useI18n } from 'vue-i18n';
 import { useAlert } from 'dashboard/composables';
 
 import { useStoreGetters } from 'dashboard/composables/store';
 import { useKeyboardEvents } from 'dashboard/composables/useKeyboardEvents';
+import { useImageZoom } from 'dashboard/composables/useImageZoom';
 import { messageTimestamp } from 'shared/helpers/timeHelper';
 import { downloadFile } from '@chatwoot/utils';
 
@@ -26,7 +27,6 @@ const emit = defineEmits(['close']);
 const show = defineModel('show', { type: Boolean, default: false });
 
 const { t } = useI18n();
-
 const getters = useStoreGetters();
 
 const ALLOWED_FILE_TYPES = {
@@ -36,11 +36,7 @@ const ALLOWED_FILE_TYPES = {
   AUDIO: 'audio',
 };
 
-const MAX_ZOOM_LEVEL = 2;
-const MIN_ZOOM_LEVEL = 1;
-
 const isDownloading = ref(false);
-const zoomScale = ref(1);
 const activeAttachment = ref({});
 const activeFileType = ref('');
 const activeImageIndex = ref(
@@ -48,10 +44,23 @@ const activeImageIndex = ref(
     attachment => attachment.message_id === props.attachment.message_id
   ) || 0
 );
-const activeImageRotation = ref(0);
+
+const imageRef = useTemplateRef('imageRef');
+
+const {
+  imageWrapperStyle,
+  imageStyle,
+  onRotate,
+  activeImageRotation,
+  onZoom,
+  onDoubleClickZoomImage,
+  onWheelImageZoom,
+  onMouseMove,
+  onMouseLeave,
+  resetZoomAndRotation,
+} = useImageZoom(imageRef);
 
 const currentUser = computed(() => getters.getCurrentUser.value);
-
 const hasMoreThanOneAttachment = computed(
   () => props.allAttachments.length > 1
 );
@@ -65,10 +74,10 @@ const readableTime = computed(() => {
 const isImage = computed(
   () => activeFileType.value === ALLOWED_FILE_TYPES.IMAGE
 );
-const isVideo = computed(
-  () =>
-    activeFileType.value === ALLOWED_FILE_TYPES.VIDEO ||
-    activeFileType.value === ALLOWED_FILE_TYPES.IG_REEL
+const isVideo = computed(() =>
+  [ALLOWED_FILE_TYPES.VIDEO, ALLOWED_FILE_TYPES.IG_REEL].includes(
+    activeFileType.value
+  )
 );
 const isAudio = computed(
   () => activeFileType.value === ALLOWED_FILE_TYPES.AUDIO
@@ -82,9 +91,9 @@ const senderDetails = computed(() => {
     thumbnail,
     id,
   } = activeAttachment.value?.sender || props.attachment?.sender || {};
-  const currentUserID = currentUser.value?.id;
+
   return {
-    name: currentUserID === id ? 'You' : name || availableName || '',
+    name: currentUser.value?.id === id ? 'You' : name || availableName || '',
     avatar: thumbnail || avatar_url || '',
   };
 });
@@ -92,43 +101,32 @@ const senderDetails = computed(() => {
 const fileNameFromDataUrl = computed(() => {
   const { data_url: dataUrl } = activeAttachment.value;
   if (!dataUrl) return '';
-  const fileName = dataUrl?.split('/').pop();
-  return decodeURIComponent(fileName || '');
+
+  const fileName = dataUrl.split('/').pop();
+  return fileName ? decodeURIComponent(fileName) : '';
 });
 
-const imageRotationStyle = computed(() => ({
-  transform: `rotate(${activeImageRotation.value}deg) scale(${zoomScale.value})`,
-  cursor: zoomScale.value < MAX_ZOOM_LEVEL ? 'zoom-in' : 'zoom-out',
-}));
-
-const onClose = () => {
-  emit('close');
-};
+const onClose = () => emit('close');
 
 const setImageAndVideoSrc = attachment => {
   const { file_type: type } = attachment;
-  if (!Object.values(ALLOWED_FILE_TYPES).includes(type)) {
-    return;
-  }
+  if (!Object.values(ALLOWED_FILE_TYPES).includes(type)) return;
+
   activeAttachment.value = attachment;
   activeFileType.value = type;
 };
 
 const onClickChangeAttachment = (attachment, index) => {
-  if (!attachment) {
-    return;
-  }
+  if (!attachment) return;
+
   activeImageIndex.value = index;
   setImageAndVideoSrc(attachment);
-  activeImageRotation.value = 0;
-  zoomScale.value = 1;
+  resetZoomAndRotation();
 };
 
 const onClickDownload = async () => {
   const { file_type: type, data_url: url, extension } = activeAttachment.value;
-  if (!Object.values(ALLOWED_FILE_TYPES).includes(type)) {
-    return;
-  }
+  if (!Object.values(ALLOWED_FILE_TYPES).includes(type)) return;
 
   try {
     isDownloading.value = true;
@@ -140,66 +138,8 @@ const onClickDownload = async () => {
   }
 };
 
-const onRotate = type => {
-  if (!isImage.value) {
-    return;
-  }
-
-  const rotation = type === 'clockwise' ? 90 : -90;
-
-  // Reset rotation if it is 360
-  if (Math.abs(activeImageRotation.value) === 360) {
-    activeImageRotation.value = rotation;
-  } else {
-    activeImageRotation.value += rotation;
-  }
-};
-
-const onZoom = scale => {
-  if (!isImage.value) {
-    return;
-  }
-
-  const newZoomScale = zoomScale.value + scale;
-  // Check if the new zoom scale is within the allowed range
-  if (newZoomScale > MAX_ZOOM_LEVEL) {
-    // Set zoom to max but do not reset to default
-    zoomScale.value = MAX_ZOOM_LEVEL;
-    return;
-  }
-  if (newZoomScale < MIN_ZOOM_LEVEL) {
-    // Set zoom to min but do not reset to default
-    zoomScale.value = MIN_ZOOM_LEVEL;
-    return;
-  }
-  // If within bounds, update the zoom scale
-  zoomScale.value = newZoomScale;
-};
-
-const onClickZoomImage = () => {
-  // If already at max zoom, clicking should zoom out to minimum
-  if (zoomScale.value >= MAX_ZOOM_LEVEL) {
-    zoomScale.value = MIN_ZOOM_LEVEL;
-    return;
-  }
-  // Otherwise zoom in
-  onZoom(0.1);
-};
-
-const onWheelImageZoom = e => {
-  if (!isImage.value) {
-    return;
-  }
-  const scale = e.deltaY > 0 ? -0.1 : 0.1;
-  onZoom(scale);
-};
-
 const keyboardEvents = {
-  Escape: {
-    action: () => {
-      onClose();
-    },
-  },
+  Escape: { action: onClose },
   ArrowLeft: {
     action: () => {
       onClickChangeAttachment(
@@ -217,6 +157,7 @@ const keyboardEvents = {
     },
   },
 };
+
 useKeyboardEvents(keyboardEvents);
 
 onMounted(() => {
@@ -232,50 +173,46 @@ onMounted(() => {
     :on-close="onClose"
   >
     <div
-      class="bg-white dark:bg-slate-900 flex flex-col h-[inherit] w-[inherit] overflow-hidden"
+      class="bg-n-background flex flex-col h-[inherit] w-[inherit] overflow-hidden select-none"
       @click="onClose"
     >
-      <div
-        class="z-10 flex items-center justify-between w-full h-16 px-6 py-2 bg-white dark:bg-slate-900"
+      <header
+        class="z-10 flex items-center justify-between w-full h-16 px-6 py-2 bg-n-background border-b border-n-weak"
         @click.stop
       >
         <div
           v-if="senderDetails"
-          class="items-center flex justify-start min-w-[15rem]"
+          class="flex items-center min-w-[15rem] shrink-0"
         >
           <Thumbnail
             v-if="senderDetails.avatar"
             :username="senderDetails.name"
             :src="senderDetails.avatar"
+            class="flex-shrink-0"
           />
-          <div
-            class="flex flex-col items-start justify-center ml-2 rtl:ml-0 rtl:mr-2"
-          >
-            <h3 class="text-base inline-block leading-[1.4] m-0 p-0 capitalize">
+          <div class="flex flex-col ml-2 rtl:ml-0 rtl:mr-2 overflow-hidden">
+            <h3 class="text-base leading-5 m-0 font-medium">
               <span
-                class="overflow-hidden text-slate-800 dark:text-slate-100 whitespace-nowrap text-ellipsis"
+                class="overflow-hidden text-n-slate-12 whitespace-nowrap text-ellipsis"
               >
                 {{ senderDetails.name }}
               </span>
             </h3>
             <span
-              class="p-0 m-0 overflow-hidden text-xs text-slate-400 dark:text-slate-200 whitespace-nowrap text-ellipsis"
+              class="text-xs text-n-slate-11 whitespace-nowrap text-ellipsis"
             >
               {{ readableTime }}
             </span>
           </div>
         </div>
+
         <div
-          class="flex items-center justify-start w-auto min-w-0 p-1 text-sm font-semibold text-slate-700 dark:text-slate-100"
+          class="flex-1 mx-2 px-2 truncate text-sm font-medium text-center text-n-slate-12"
         >
-          <span
-            v-dompurify-html="fileNameFromDataUrl"
-            class="overflow-hidden text-slate-700 dark:text-slate-100 whitespace-nowrap text-ellipsis"
-          />
+          <span v-dompurify-html="fileNameFromDataUrl" class="truncate" />
         </div>
-        <div
-          class="items-center flex gap-2 justify-end min-w-[8rem] sm:min-w-[15rem]"
-        >
+
+        <div class="flex items-center gap-2 ml-2 shrink-0">
           <NextButton
             v-if="isImage"
             icon="i-lucide-zoom-in"
@@ -314,13 +251,14 @@ onMounted(() => {
           />
           <NextButton icon="i-lucide-x" slate ghost @click="onClose" />
         </div>
-      </div>
-      <div class="flex items-center justify-center w-full h-full">
-        <div class="flex justify-center min-w-[6.25rem] w-[6.25rem]">
+      </header>
+
+      <main class="flex items-stretch flex-1 h-full overflow-hidden">
+        <div class="flex items-center justify-center w-16 shrink-0">
           <NextButton
             v-if="hasMoreThanOneAttachment"
             icon="i-lucide-chevron-left"
-            class="z-10 disabled:pointer-events-auto"
+            class="z-10"
             blue
             faded
             lg
@@ -333,42 +271,60 @@ onMounted(() => {
             "
           />
         </div>
-        <div class="flex flex-col items-center justify-center w-full h-full">
-          <div>
+
+        <div class="flex-1 flex items-center justify-center overflow-hidden">
+          <div
+            v-if="isImage"
+            :style="imageWrapperStyle"
+            class="flex items-center justify-center origin-center"
+            :class="{
+              // Adjust dimensions when rotated 90/270 degrees to maintain visibility
+              // and prevent image from overflowing container in different aspect ratios
+              'w-[calc(100dvh-8rem)] h-[calc(100dvw-7rem)]':
+                activeImageRotation % 180 !== 0,
+              'size-full': activeImageRotation % 180 === 0,
+            }"
+          >
             <img
-              v-if="isImage"
+              ref="imageRef"
               :key="activeAttachment.message_id"
               :src="activeAttachment.data_url"
-              class="mx-auto my-0 duration-150 ease-in-out transform modal-image skip-context-menu"
-              :style="imageRotationStyle"
-              @click.stop="onClickZoomImage"
-              @wheel.stop="onWheelImageZoom"
-            />
-            <video
-              v-if="isVideo"
-              :key="activeAttachment.message_id"
-              :src="activeAttachment.data_url"
-              controls
-              playsInline
-              class="mx-auto my-0 modal-video skip-context-menu"
+              :style="imageStyle"
+              class="max-h-full max-w-full object-contain duration-100 ease-in-out transform select-none"
               @click.stop
+              @dblclick.stop="onDoubleClickZoomImage"
+              @wheel.prevent.stop="onWheelImageZoom"
+              @mousemove="onMouseMove"
+              @mouseleave="onMouseLeave"
             />
-            <audio
-              v-if="isAudio"
-              :key="activeAttachment.message_id"
-              controls
-              class="skip-context-menu"
-              @click.stop
-            >
-              <source :src="`${activeAttachment.data_url}?t=${Date.now()}`" />
-            </audio>
           </div>
+
+          <video
+            v-if="isVideo"
+            :key="activeAttachment.message_id"
+            :src="activeAttachment.data_url"
+            controls
+            playsInline
+            class="max-h-full max-w-full object-contain"
+            @click.stop
+          />
+
+          <audio
+            v-if="isAudio"
+            :key="activeAttachment.message_id"
+            controls
+            class="w-full max-w-md"
+            @click.stop
+          >
+            <source :src="`${activeAttachment.data_url}?t=${Date.now()}`" />
+          </audio>
         </div>
-        <div class="flex justify-center min-w-[6.25rem] w-[6.25rem]">
+
+        <div class="flex items-center justify-center w-16 shrink-0">
           <NextButton
             v-if="hasMoreThanOneAttachment"
             icon="i-lucide-chevron-right"
-            class="z-10 disabled:pointer-events-auto"
+            class="z-10"
             blue
             faded
             lg
@@ -381,16 +337,17 @@ onMounted(() => {
             "
           />
         </div>
-      </div>
-      <div class="z-10 flex items-center justify-center w-full h-16 px-6 py-2">
+      </main>
+
+      <footer
+        class="z-10 flex items-center justify-center h-12 border-t border-n-weak"
+      >
         <div
-          class="items-center rounded-sm flex font-semibold justify-center min-w-[5rem] p-1 bg-slate-25 dark:bg-slate-800 text-slate-600 dark:text-slate-200 text-sm"
+          class="rounded-md flex items-center justify-center px-3 py-1 bg-n-slate-3 text-n-slate-12 text-sm font-medium"
         >
-          <span class="count">
-            {{ `${activeImageIndex + 1} / ${allAttachments.length}` }}
-          </span>
+          {{ `${activeImageIndex + 1} / ${allAttachments.length}` }}
         </div>
-      </div>
+      </footer>
     </div>
   </woot-modal>
 </template>

app/javascript/dashboard/composables/spec/useImageZoom.spec.js

@@ -0,0 +1,141 @@
+import { ref } from 'vue';
+import { useImageZoom } from 'dashboard/composables/useImageZoom';
+
+describe('useImageZoom', () => {
+  let imageRef;
+
+  beforeEach(() => {
+    // Mock imageRef element with getBoundingClientRect method
+    imageRef = ref({
+      getBoundingClientRect: () => ({
+        left: 100,
+        top: 100,
+        width: 200,
+        height: 200,
+      }),
+    });
+  });
+
+  it('should initialize with default values', () => {
+    const { zoomScale, imgTransformOriginPoint, activeImageRotation } =
+      useImageZoom(imageRef);
+
+    expect(zoomScale.value).toBe(1);
+    expect(imgTransformOriginPoint.value).toBe('center center');
+    expect(activeImageRotation.value).toBe(0);
+  });
+
+  it('should update zoom scale when onZoom is called', () => {
+    const { zoomScale, onZoom } = useImageZoom(imageRef);
+
+    onZoom(0.5);
+    expect(zoomScale.value).toBe(1.5);
+
+    // Should respect max zoom level
+    onZoom(10);
+    expect(zoomScale.value).toBe(3);
+
+    // Should respect min zoom level
+    onZoom(-10);
+    expect(zoomScale.value).toBe(1);
+  });
+
+  it('should update rotation when onRotate is called', () => {
+    const { activeImageRotation, onRotate } = useImageZoom(imageRef);
+
+    onRotate('clockwise');
+    expect(activeImageRotation.value).toBe(90);
+
+    onRotate('counter-clockwise');
+    expect(activeImageRotation.value).toBe(0);
+
+    // Test full rotation reset
+    onRotate('clockwise');
+    onRotate('clockwise');
+    onRotate('clockwise');
+    onRotate('clockwise');
+    onRotate('clockwise');
+    // After 360 degrees, it should reset and add the new rotation
+    expect(activeImageRotation.value).toBe(90);
+  });
+
+  it('should reset zoom and rotation', () => {
+    const {
+      zoomScale,
+      activeImageRotation,
+      onZoom,
+      onRotate,
+      resetZoomAndRotation,
+    } = useImageZoom(imageRef);
+
+    onZoom(0.5);
+    onRotate('clockwise');
+    expect(zoomScale.value).toBe(1); // Rotation resets zoom
+    expect(activeImageRotation.value).toBe(90);
+
+    onZoom(0.5);
+    expect(zoomScale.value).toBe(1.5);
+
+    resetZoomAndRotation();
+    expect(zoomScale.value).toBe(1);
+    expect(activeImageRotation.value).toBe(0);
+  });
+
+  it('should handle double click zoom', () => {
+    const { zoomScale, onDoubleClickZoomImage } = useImageZoom(imageRef);
+
+    // Mock event
+    const event = {
+      clientX: 150,
+      clientY: 150,
+      preventDefault: vi.fn(),
+    };
+
+    onDoubleClickZoomImage(event);
+    expect(zoomScale.value).toBe(3); // Max zoom
+    expect(event.preventDefault).toHaveBeenCalled();
+
+    onDoubleClickZoomImage(event);
+    expect(zoomScale.value).toBe(1); // Min zoom
+  });
+
+  it('should handle wheel zoom', () => {
+    const { zoomScale, onWheelImageZoom } = useImageZoom(imageRef);
+
+    // Mock event
+    const event = {
+      clientX: 150,
+      clientY: 150,
+      deltaY: -10, // Zoom in
+      preventDefault: vi.fn(),
+    };
+
+    onWheelImageZoom(event);
+    expect(zoomScale.value).toBe(1.2);
+    expect(event.preventDefault).toHaveBeenCalled();
+
+    // Zoom out
+    event.deltaY = 10;
+    onWheelImageZoom(event);
+    expect(zoomScale.value).toBe(1);
+  });
+
+  it('should correctly compute zoom origin', () => {
+    const { getZoomOrigin } = useImageZoom(imageRef);
+
+    // Test center point
+    const centerOrigin = getZoomOrigin(200, 200);
+    expect(centerOrigin.x).toBeCloseTo(50);
+    expect(centerOrigin.y).toBeCloseTo(50);
+
+    // Test top-left corner
+    const topLeftOrigin = getZoomOrigin(100, 100);
+    expect(topLeftOrigin.x).toBeCloseTo(0);
+    expect(topLeftOrigin.y).toBeCloseTo(0);
+
+    // Test bottom-right corner
+    const bottomRightOrigin = getZoomOrigin(300, 300);
+    expect(bottomRightOrigin.x).toBeCloseTo(100);
+    expect(bottomRightOrigin.y).toBeCloseTo(100);
+  });
+});

app/javascript/dashboard/composables/useImageZoom.js

@@ -0,0 +1,186 @@
+import { ref, computed } from 'vue';
+import {
+  debounce,
+  calculateCenterOffset,
+  applyRotationTransform,
+  normalizeToPercentage,
+} from '@chatwoot/utils';
+
+// Composable for images in gallery view
+export const useImageZoom = imageRef => {
+  const MAX_ZOOM_LEVEL = 3;
+  const MIN_ZOOM_LEVEL = 1;
+  const ZOOM_INCREMENT = 0.2;
+  const MOUSE_MOVE_DEBOUNCE_MS = 100;
+  const MOUSE_LEAVE_DEBOUNCE_MS = 110;
+  const DEFAULT_IMG_TRANSFORM_ORIGIN = 'center center';
+
+  const zoomScale = ref(1);
+  const imgTransformOriginPoint = ref(DEFAULT_IMG_TRANSFORM_ORIGIN);
+  const activeImageRotation = ref(0);
+
+  const imageWrapperStyle = computed(() => ({
+    transform: `rotate(${activeImageRotation.value}deg)`,
+  }));
+
+  const imageStyle = computed(() => ({
+    transform: `scale(${zoomScale.value})`,
+    cursor: zoomScale.value < MAX_ZOOM_LEVEL ? 'zoom-in' : 'zoom-out',
+    transformOrigin: `${imgTransformOriginPoint.value}`,
+  }));
+
+  // Resets the transform origin to center
+  const resetTransformOrigin = () => {
+    if (imageRef.value) {
+      imgTransformOriginPoint.value = DEFAULT_IMG_TRANSFORM_ORIGIN;
+    }
+  };
+
+  // Rotates the current image
+  const onRotate = type => {
+    if (!imageRef.value) return;
+    resetTransformOrigin();
+
+    const rotation = type === 'clockwise' ? 90 : -90;
+
+    // ensure that the value of the rotation is within the range of -360 to 360 degrees
+    activeImageRotation.value = (activeImageRotation.value + rotation) % 360;
+
+    // Reset zoom when rotating
+    zoomScale.value = 1;
+    resetTransformOrigin();
+  };
+
+  /**
+   * Calculates the appropriate transform origin point based on mouse position and image rotation
+   * Used to create a natural zoom behavior where the image zooms toward/from the cursor position
+   *
+   * @param {number} x - The client X coordinate of the mouse pointer
+   * @param {number} y - The client Y coordinate of the mouse pointer
+   * @returns {{x: number, y: number}} Object containing the transform origin coordinates as percentages
+   */
+  const getZoomOrigin = (x, y) => {
+    // Default to center
+    if (!imageRef.value) return { x: 50, y: 50 };
+
+    const rect = imageRef.value.getBoundingClientRect();
+
+    // Step 1: Calculate offset from center
+    const { relativeX, relativeY } = calculateCenterOffset(x, y, rect);
+
+    // Step 2: Apply rotation transformation
+    const { rotatedX, rotatedY } = applyRotationTransform(
+      relativeX,
+      relativeY,
+      activeImageRotation.value
+    );
+
+    // Step 3: Convert to percentage coordinates
+    return normalizeToPercentage(rotatedX, rotatedY, rect.width, rect.height);
+  };
+
+  // Handles zooming the image
+  const onZoom = (scale, x, y) => {
+    if (!imageRef.value) return;
+
+    // Calculate new scale within bounds
+    const newScale = Math.max(
+      MIN_ZOOM_LEVEL,
+      Math.min(MAX_ZOOM_LEVEL, zoomScale.value + scale)
+    );
+
+    // Skip if no change
+    if (newScale === zoomScale.value) return;
+
+    // Update transform origin based on mouse position and zoom scale is minimum
+    if (x != null && y != null && zoomScale.value === MIN_ZOOM_LEVEL) {
+      const { x: originX, y: originY } = getZoomOrigin(x, y);
+      imgTransformOriginPoint.value = `${originX}% ${originY}%`;
+    }
+
+    // Apply the new scale
+    zoomScale.value = newScale;
+  };
+
+  // Handles double-click zoom toggling
+  const onDoubleClickZoomImage = e => {
+    if (!imageRef.value) return;
+    e.preventDefault();
+
+    // Toggle between max zoom and min zoom
+    const newScale =
+      zoomScale.value >= MAX_ZOOM_LEVEL ? MIN_ZOOM_LEVEL : MAX_ZOOM_LEVEL;
+
+    // Update transform origin based on mouse position
+    const { x: originX, y: originY } = getZoomOrigin(e.clientX, e.clientY);
+    imgTransformOriginPoint.value = `${originX}% ${originY}%`;
+
+    // Apply the new scale
+    zoomScale.value = newScale;
+  };
+
+  // Handles mouse wheel zooming for images
+  const onWheelImageZoom = e => {
+    if (!imageRef.value) return;
+    e.preventDefault();
+
+    const scale = e.deltaY > 0 ? -ZOOM_INCREMENT : ZOOM_INCREMENT;
+    onZoom(scale, e.clientX, e.clientY);
+  };
+
+  /**
+   * Sets transform origin to mouse position during hover.
+   * Enables precise scroll/double-click zoom targeting by updating the
+   * transform origin to cursor position. Only active at minimum zoom level.
+   * Debounced (100ms) to improve performance during rapid mouse movement.
+   */
+  const onMouseMove = debounce(
+    e => {
+      if (!imageRef.value) return;
+      if (zoomScale.value !== MIN_ZOOM_LEVEL) return;
+
+      const { x: originX, y: originY } = getZoomOrigin(e.clientX, e.clientY);
+      imgTransformOriginPoint.value = `${originX}% ${originY}%`;
+    },
+    MOUSE_MOVE_DEBOUNCE_MS,
+    false
+  );
+
+  /**
+   * Resets transform origin to center when mouse leaves image.
+   * Ensures button-based zooming works predictably after hover ends.
+   * Uses slightly longer debounce (110ms) to avoid conflicts with onMouseMove.
+   */
+  const onMouseLeave = debounce(
+    () => {
+      if (!imageRef.value) return;
+      if (zoomScale.value !== MIN_ZOOM_LEVEL) return;
+      imgTransformOriginPoint.value = DEFAULT_IMG_TRANSFORM_ORIGIN;
+    },
+    MOUSE_LEAVE_DEBOUNCE_MS,
+    false
+  );
+
+  const resetZoomAndRotation = () => {
+    activeImageRotation.value = 0;
+    zoomScale.value = 1;
+    resetTransformOrigin();
+  };
+
+  return {
+    zoomScale,
+    imgTransformOriginPoint,
+    activeImageRotation,
+    imageWrapperStyle,
+    imageStyle,
+    getZoomOrigin,
+    resetTransformOrigin,
+    onRotate,
+    onZoom,
+    onDoubleClickZoomImage,
+    onWheelImageZoom,
+    onMouseMove,
+    onMouseLeave,
+    resetZoomAndRotation,
+  };
+};

package.json

@@ -34,7 +34,7 @@
     "@breezystack/lamejs": "^1.2.7",
     "@chatwoot/ninja-keys": "1.2.3",
     "@chatwoot/prosemirror-schema": "1.1.1-next",
-    "@chatwoot/utils": "^0.0.40",
+    "@chatwoot/utils": "^0.0.41",
     "@formkit/core": "^1.6.7",
     "@formkit/vue": "^1.6.7",
     "@hcaptcha/vue3-hcaptcha": "^1.3.0",

pnpm-lock.yaml

@@ -23,8 +23,8 @@ importers:
         specifier: 1.1.1-next
         version: 1.1.1-next
       '@chatwoot/utils':
-        specifier: ^0.0.40
-        version: 0.0.40
+        specifier: ^0.0.41
+        version: 0.0.41
       '@formkit/core':
         specifier: ^1.6.7
         version: 1.6.7
@@ -403,8 +403,8 @@ packages:
   '@chatwoot/prosemirror-schema@1.1.1-next':
     resolution: {integrity: sha512-/M2qZ+ZF7GlQNt1riwVP499fvp3hxSqd5iy8hxyF9pkj9qQ+OKYn5JK+v3qwwqQY3IxhmNOn1Lp6tm7vstrd9Q==}
 
-  '@chatwoot/utils@0.0.40':
-    resolution: {integrity: sha512-Rg5wwQXi4mnEiv8scw66QVIgal9F1di+UDg4hHCw37zLXrqExQQ9CL7jDvO+ddvzEl6TUXw91Lu5L/qVlEyvdg==}
+  '@chatwoot/utils@0.0.41':
+    resolution: {integrity: sha512-f0D+XArVYbc9m9M7KZpCaVJ+EUVzobX+D9P5Vt/h2jUipg706GoBhGwsP8kjfWhUdNdcS+H+OB4ZCKGF1NIkTQ==}
     engines: {node: '>=10'}
 
   '@codemirror/commands@6.7.0':
@@ -5244,7 +5244,7 @@ snapshots:
       prosemirror-utils: 1.2.2(prosemirror-model@1.22.3)(prosemirror-state@1.4.3)
       prosemirror-view: 1.34.1
 
-  '@chatwoot/utils@0.0.40':
+  '@chatwoot/utils@0.0.41':
     dependencies:
       date-fns: 2.30.0