Merge pull request #4101 from nocodb/feat/scroll-improvement

feat: better scroll for borders and sticky header

packages/nc-gui/components/smartsheet/Grid.vue

@@ -88,6 +88,8 @@ const expandedFormDlg = ref(false)
 const expandedFormRow = ref<Row>()
 const expandedFormRowState = ref<Record<string, any>>()
 const tbodyEl = ref<HTMLElement>()
+const gridWrapper = ref<HTMLElement>()
+const tableHead = ref<HTMLElement>()
 
 const {
   isLoading,
@@ -107,6 +109,55 @@ const { getMeta } = useMetas()
 
 const { loadGridViewColumns, updateWidth, resizingColWidth, resizingCol } = useGridViewColumnWidth(view)
 
+const getContainerScrollForElement = (
+  el: HTMLElement,
+  container: HTMLElement,
+  offset?: {
+    top?: number
+    bottom?: number
+    left?: number
+    right?: number
+  },
+) => {
+  const childPos = el.getBoundingClientRect()
+  const parentPos = container.getBoundingClientRect()
+  const relativePos = {
+    top: childPos.top - parentPos.top,
+    right: childPos.right - parentPos.right,
+    bottom: childPos.bottom - parentPos.bottom,
+    left: childPos.left - parentPos.left,
+  }
+
+  const scroll = {
+    top: 0,
+    left: 0,
+  }
+
+  /*
+   * If the element is to the right of the container, scroll right (positive)
+   * If the element is to the left of the container, scroll left (negative)
+   */
+  scroll.left =
+    relativePos.right + (offset?.right || 0) > 0
+      ? container.scrollLeft + relativePos.right + (offset?.right || 0)
+      : relativePos.left - (offset?.left || 0) < 0
+      ? container.scrollLeft + relativePos.left - (offset?.left || 0)
+      : container.scrollLeft
+
+  /*
+   * If the element is below the container, scroll down (positive)
+   * If the element is above the container, scroll up (negative)
+   */
+  scroll.top =
+    relativePos.bottom + (offset?.bottom || 0) > 0
+      ? container.scrollTop + relativePos.bottom + (offset?.bottom || 0)
+      : relativePos.top - (offset?.top || 0) < 0
+      ? container.scrollTop + relativePos.top - (offset?.top || 0)
+      : container.scrollTop
+
+  return scroll
+}
+
 const { selectCell, selectBlock, selectedRange, clearRangeRows, startSelectRange, selected } = useMultiSelect(
   fields,
   data,
@@ -114,16 +165,48 @@ const { selectCell, selectBlock, selectedRange, clearRangeRows, startSelectRange
   isPkAvail,
   clearCell,
   makeEditable,
-  () => {
-    if (selected.row !== null && selected.col !== null) {
+  (row?: number | null, col?: number | null) => {
+    row = row ?? selected.row
+    col = col ?? selected.col
+    if (row !== undefined && col !== undefined && row !== null && col !== null) {
       // get active cell
-      const td = tbodyEl.value?.querySelectorAll('tr')[selected.row]?.querySelectorAll('td')[selected.col + 1]
-      if (!td) return
+      const rows = tbodyEl.value?.querySelectorAll('tr')
+      const cols = rows?.[row].querySelectorAll('td')
+      const td = cols?.[col === 0 ? 0 : col + 1]
+
+      if (!td || !gridWrapper.value) return
+
+      const { height: headerHeight } = tableHead.value!.getBoundingClientRect()
+      const tdScroll = getContainerScrollForElement(td, gridWrapper.value, { top: headerHeight, bottom: 9, right: 9 })
+
+      if (rows && row === rows.length - 2) {
+        // if last row make 'Add New Row' visible
+        gridWrapper.value.scrollTo({
+          top: gridWrapper.value.scrollHeight,
+          left:
+            cols && col === cols.length - 2 // if corner cell
+              ? gridWrapper.value.scrollWidth
+              : tdScroll.left,
+          behavior: 'smooth',
+        })
+        return
+      }
+
+      if (cols && col === cols.length - 2) {
+        // if last column make 'Add New Column' visible
+        gridWrapper.value.scrollTo({
+          top: tdScroll.top,
+          left: gridWrapper.value.scrollWidth,
+          behavior: 'smooth',
+        })
+        return
+      }
+
       // scroll into the active cell
-      td.scrollIntoView({
+      gridWrapper.value.scrollTo({
+        top: tdScroll.top,
+        left: tdScroll.left,
         behavior: 'smooth',
-        block: 'nearest',
-        inline: 'nearest',
       })
     }
   },
@@ -381,7 +464,7 @@ watch(
       </div>
     </general-overlay>
 
-    <div class="nc-grid-wrapper min-h-0 flex-1 scrollbar-thin-dull">
+    <div ref="gridWrapper" class="nc-grid-wrapper min-h-0 flex-1 scrollbar-thin-dull">
       <a-dropdown
         v-model:visible="contextMenu"
         :trigger="isSqlView ? [] : ['contextmenu']"
@@ -392,7 +475,7 @@ watch(
           class="xc-row-table nc-grid backgroundColorDefault !h-auto bg-white"
           @contextmenu="showContextMenu"
         >
-          <thead>
+          <thead ref="tableHead">
             <tr class="nc-grid-header border-1 bg-gray-100 sticky top[-1px]">
               <th>
                 <div class="w-full h-full bg-gray-100 flex min-w-[70px] pl-5 pr-1 items-center">

packages/nc-gui/composables/useMultiSelect/index.ts

@@ -17,7 +17,7 @@ export function useMultiSelect(
   isPkAvail: MaybeRef<boolean>,
   clearCell: Function,
   makeEditable: Function,
-  scrollToActiveCell?: () => void,
+  scrollToActiveCell?: (row?: number | null, col?: number | null) => void,
 ) {
   const { t } = useI18n()