Merge pull request #12094 from Budibase/refactor-grid-columns

Refactor grid column handling

packages/builder/src/components/backend/DataTable/modals/CreateEditColumn.svelte

@@ -777,7 +777,8 @@
   disabled={deleteColName !== originalName}
 >
   <p>
-    Are you sure you wish to delete the column <b>{originalName}?</b>
+    Are you sure you wish to delete the column
+    <b on:click={() => (deleteColName = originalName)}>{originalName}?</b>
     Your data will be deleted and this action cannot be undone - enter the column
     name to confirm.
   </p>
@@ -810,4 +811,11 @@
     gap: 8px;
     display: flex;
   }
+  b {
+    transition: color 130ms ease-out;
+  }
+  b:hover {
+    cursor: pointer;
+    color: var(--spectrum-global-color-gray-900);
+  }
 </style>

packages/builder/src/pages/builder/app/[application]/data/table/[tableId]/index.svelte

@@ -53,7 +53,8 @@
   }
   .alert-wrap {
     display: flex;
-    width: 100%;
+    flex: 0 0 auto;
+    margin: -28px -40px 14px -40px;
   }
   .alert-wrap :global(> *) {
     flex: 1;

packages/frontend-core/src/components/grid/cells/DataCell.svelte

@@ -21,6 +21,7 @@
   export let invertX = false
   export let invertY = false
   export let contentLines = 1
+  export let hidden = false
 
   const emptyError = writable(null)
 
@@ -78,6 +79,7 @@
   {focused}
   {selectedUser}
   {readonly}
+  {hidden}
   error={$error}
   on:click={() => focusedCellId.set(cellId)}
   on:contextmenu={e => menu.actions.open(cellId, e)}

packages/frontend-core/src/components/grid/cells/GridCell.svelte

@@ -10,6 +10,7 @@
   export let defaultHeight = false
   export let center = false
   export let readonly = false
+  export let hidden = false
 
   $: style = getStyle(width, selectedUser)
 
@@ -30,6 +31,7 @@
   class:error
   class:center
   class:readonly
+  class:hidden
   class:default-height={defaultHeight}
   class:selected-other={selectedUser != null}
   class:alt={rowIdx % 2 === 1}
@@ -81,6 +83,9 @@
   .cell.center {
     align-items: center;
   }
+  .cell.hidden {
+    content-visibility: hidden;
+  }
 
   /* Cell border */
   .cell.focused:after,

packages/frontend-core/src/components/grid/cells/HeaderCell.svelte

@@ -17,7 +17,7 @@
     isResizing,
     rand,
     sort,
-    renderedColumns,
+    visibleColumns,
     dispatch,
     subscribe,
     config,
@@ -50,7 +50,7 @@
 
   $: sortedBy = column.name === $sort.column
   $: canMoveLeft = orderable && idx > 0
-  $: canMoveRight = orderable && idx < $renderedColumns.length - 1
+  $: canMoveRight = orderable && idx < $visibleColumns.length - 1
   $: sortingLabels = getSortingLabels(column.schema?.type)
   $: searchable = isColumnSearchable(column)
   $: resetSearchValue(column.name)

packages/frontend-core/src/components/grid/layout/GridBody.svelte

@@ -7,7 +7,7 @@
   const {
     bounds,
     renderedRows,
-    renderedColumns,
+    visibleColumns,
     rowVerticalInversionIndex,
     hoveredRowId,
     dispatch,
@@ -17,7 +17,7 @@
 
   let body
 
-  $: renderColumnsWidth = $renderedColumns.reduce(
+  $: columnsWidth = $visibleColumns.reduce(
     (total, col) => (total += col.width),
     0
   )
@@ -47,7 +47,7 @@
       <div
         class="blank"
         class:highlighted={$hoveredRowId === BlankRowID}
-        style="width:{renderColumnsWidth}px"
+        style="width:{columnsWidth}px"
         on:mouseenter={$isDragging ? null : () => ($hoveredRowId = BlankRowID)}
         on:mouseleave={$isDragging ? null : () => ($hoveredRowId = null)}
         on:click={() => dispatch("add-row-inline")}

packages/frontend-core/src/components/grid/layout/GridRow.svelte

@@ -10,7 +10,7 @@
     focusedCellId,
     reorder,
     selectedRows,
-    renderedColumns,
+    visibleColumns,
     hoveredRowId,
     selectedCellMap,
     focusedRow,
@@ -19,6 +19,7 @@
     isDragging,
     dispatch,
     rows,
+    columnRenderMap,
   } = getContext("grid")
 
   $: rowSelected = !!$selectedRows[row._id]
@@ -34,7 +35,7 @@
   on:mouseleave={$isDragging ? null : () => ($hoveredRowId = null)}
   on:click={() => dispatch("rowclick", rows.actions.cleanRow(row))}
 >
-  {#each $renderedColumns as column, columnIdx (column.name)}
+  {#each $visibleColumns as column, columnIdx}
     {@const cellId = `${row._id}-${column.name}`}
     <DataCell
       {cellId}
@@ -51,6 +52,7 @@
       selectedUser={$selectedCellMap[cellId]}
       width={column.width}
       contentLines={$contentLines}
+      hidden={!$columnRenderMap[column.name]}
     />
   {/each}
 </div>

packages/frontend-core/src/components/grid/layout/GridScrollWrapper.svelte

@@ -11,7 +11,6 @@
     maxScrollLeft,
     bounds,
     hoveredRowId,
-    hiddenColumnsWidth,
     menu,
   } = getContext("grid")
 
@@ -23,10 +22,10 @@
   let initialTouchX
   let initialTouchY
 
-  $: style = generateStyle($scroll, $rowHeight, $hiddenColumnsWidth)
+  $: style = generateStyle($scroll, $rowHeight)
 
-  const generateStyle = (scroll, rowHeight, hiddenWidths) => {
-    const offsetX = scrollHorizontally ? -1 * scroll.left + hiddenWidths : 0
+  const generateStyle = (scroll, rowHeight) => {
+    const offsetX = scrollHorizontally ? -1 * scroll.left : 0
     const offsetY = scrollVertically ? -1 * (scroll.top % rowHeight) : 0
     return `transform: translate3d(${offsetX}px, ${offsetY}px, 0);`
   }

packages/frontend-core/src/components/grid/layout/HeaderRow.svelte

@@ -5,14 +5,14 @@
   import HeaderCell from "../cells/HeaderCell.svelte"
   import { TempTooltip, TooltipType } from "@budibase/bbui"
 
-  const { renderedColumns, config, hasNonAutoColumn, datasource, loading } =
+  const { visibleColumns, config, hasNonAutoColumn, datasource, loading } =
     getContext("grid")
 </script>
 
 <div class="header">
   <GridScrollWrapper scrollHorizontally>
     <div class="row">
-      {#each $renderedColumns as column, idx}
+      {#each $visibleColumns as column, idx}
         <HeaderCell {column} {idx}>
           <slot name="edit-column" />
         </HeaderCell>

packages/frontend-core/src/components/grid/layout/NewColumnButton.svelte

@@ -2,17 +2,16 @@
   import { getContext, onMount } from "svelte"
   import { Icon, Popover, clickOutside } from "@budibase/bbui"
 
-  const { renderedColumns, scroll, hiddenColumnsWidth, width, subscribe } =
-    getContext("grid")
+  const { visibleColumns, scroll, width, subscribe } = getContext("grid")
 
   let anchor
   let open = false
 
-  $: columnsWidth = $renderedColumns.reduce(
+  $: columnsWidth = $visibleColumns.reduce(
     (total, col) => (total += col.width),
     0
   )
-  $: end = $hiddenColumnsWidth + columnsWidth - 1 - $scroll.left
+  $: end = columnsWidth - 1 - $scroll.left
   $: left = Math.min($width - 40, end)
 
   const close = () => {
@@ -34,7 +33,7 @@
 <Popover
   bind:open
   {anchor}
-  align={$renderedColumns.length ? "right" : "left"}
+  align={$visibleColumns.length ? "right" : "left"}
   offset={0}
   popoverTarget={document.getElementById(`add-column-button`)}
   customZindex={100}

packages/frontend-core/src/components/grid/layout/NewRow.svelte

@@ -20,7 +20,7 @@
     datasource,
     subscribe,
     renderedRows,
-    renderedColumns,
+    visibleColumns,
     rowHeight,
     hasNextPage,
     maxScrollTop,
@@ -31,6 +31,7 @@
     refreshing,
     config,
     filter,
+    columnRenderMap,
   } = getContext("grid")
 
   let visible = false
@@ -38,7 +39,7 @@
   let newRow
   let offset = 0
 
-  $: firstColumn = $stickyColumn || $renderedColumns[0]
+  $: firstColumn = $stickyColumn || $visibleColumns[0]
   $: width = GutterWidth + ($stickyColumn?.width || 0)
   $: $datasource, (visible = false)
   $: invertY = shouldInvertY(offset, $rowVerticalInversionIndex, $renderedRows)
@@ -211,9 +212,8 @@
     <div class="normal-columns" transition:fade|local={{ duration: 130 }}>
       <GridScrollWrapper scrollHorizontally attachHandlers>
         <div class="row">
-          {#each $renderedColumns as column, columnIdx}
+          {#each $visibleColumns as column, columnIdx}
             {@const cellId = `new-${column.name}`}
-            {#key cellId}
             <DataCell
               {cellId}
               {column}
@@ -225,6 +225,7 @@
               topRow={offset === 0}
               invertX={columnIdx >= $columnHorizontalInversionIndex}
               {invertY}
+              hidden={!$columnRenderMap[column.name]}
             >
               {#if column?.schema?.autocolumn}
                 <div class="readonly-overlay">Can't edit auto column</div>
@@ -233,7 +234,6 @@
                 <div in:fade={{ duration: 130 }} class="loading-overlay" />
               {/if}
             </DataCell>
-            {/key}
           {/each}
         </div>
       </GridScrollWrapper>

packages/frontend-core/src/components/grid/overlays/ResizeOverlay.svelte

@@ -2,7 +2,7 @@
   import { getContext } from "svelte"
   import { GutterWidth } from "../lib/constants"
 
-  const { resize, renderedColumns, stickyColumn, isReordering, scrollLeft } =
+  const { resize, visibleColumns, stickyColumn, isReordering, scrollLeft } =
     getContext("grid")
 
   $: offset = GutterWidth + ($stickyColumn?.width || 0)
@@ -26,7 +26,7 @@
       <div class="resize-indicator" />
     </div>
   {/if}
-  {#each $renderedColumns as column}
+  {#each $visibleColumns as column}
     <div
       class="resize-slider"
       class:visible={activeColumn === column.name}

packages/frontend-core/src/components/grid/stores/viewport.js

@@ -1,4 +1,4 @@
-import { derived, get } from "svelte/store"
+import { derived } from "svelte/store"
 import {
   MaxCellRenderHeight,
   MaxCellRenderWidthOverflow,
@@ -50,12 +50,11 @@ export const deriveStores = context => {
     const interval = MinColumnWidth
     return Math.round($scrollLeft / interval) * interval
   })
-  const renderedColumns = derived(
+  const columnRenderMap = derived(
     [visibleColumns, scrollLeftRounded, width],
-    ([$visibleColumns, $scrollLeft, $width], set) => {
+    ([$visibleColumns, $scrollLeft, $width]) => {
       if (!$visibleColumns.length) {
-        set([])
-        return
+        return {}
       }
       let startColIdx = 0
       let rightEdge = $visibleColumns[0].width
@@ -75,34 +74,16 @@ export const deriveStores = context => {
         leftEdge += $visibleColumns[endColIdx].width
         endColIdx++
       }
-      // Render an additional column on either side to account for
-      // debounce column updates based on scroll position
-      const next = $visibleColumns.slice(
-        Math.max(0, startColIdx - 1),
-        endColIdx + 1
-      )
-      const current = get(renderedColumns)
-      if (JSON.stringify(next) !== JSON.stringify(current)) {
-        set(next)
-      }
-    }
-  )
 
-  const hiddenColumnsWidth = derived(
-    [renderedColumns, visibleColumns],
-    ([$renderedColumns, $visibleColumns]) => {
-      const idx = $visibleColumns.findIndex(
-        col => col.name === $renderedColumns[0]?.name
-      )
-      let width = 0
-      if (idx > 0) {
-        for (let i = 0; i < idx; i++) {
-          width += $visibleColumns[i].width
+      // Only update the store if different
+      let next = {}
+      $visibleColumns
+        .slice(Math.max(0, startColIdx), endColIdx)
+        .forEach(col => {
+          next[col.name] = true
+        })
+      return next
     }
-      }
-      return width
-    },
-    0
   )
 
   // Determine the row index at which we should start vertically inverting cell
@@ -130,12 +111,12 @@ export const deriveStores = context => {
   // Determine the column index at which we should start horizontally inverting
   // cell dropdowns
   const columnHorizontalInversionIndex = derived(
-    [renderedColumns, scrollLeft, width],
-    ([$renderedColumns, $scrollLeft, $width]) => {
+    [visibleColumns, scrollLeft, width],
+    ([$visibleColumns, $scrollLeft, $width]) => {
       const cutoff = $width + $scrollLeft - ScrollBarSize * 3
-      let inversionIdx = $renderedColumns.length
-      for (let i = $renderedColumns.length - 1; i >= 0; i--, inversionIdx--) {
-        const rightEdge = $renderedColumns[i].left + $renderedColumns[i].width
+      let inversionIdx = $visibleColumns.length
+      for (let i = $visibleColumns.length - 1; i >= 0; i--, inversionIdx--) {
+        const rightEdge = $visibleColumns[i].left + $visibleColumns[i].width
         if (rightEdge + MaxCellRenderWidthOverflow <= cutoff) {
           break
         }
@@ -148,8 +129,7 @@ export const deriveStores = context => {
     scrolledRowCount,
     visualRowCapacity,
     renderedRows,
-    renderedColumns,
-    hiddenColumnsWidth,
+    columnRenderMap,
     rowVerticalInversionIndex,
     columnHorizontalInversionIndex,
   }