Implement Custom Spin Component and Update Loading States

- Introduced a new Spin component to standardize loading indicators across the application, enhancing visual consistency.
- Updated ObjectKanban, ObjectKanbanColumn, and ObjectTable components to utilize the new Spin component, simplifying loading state management.
- Refactored CSS styles in App.css to support the new Spin component, including responsive design adjustments for various loading sizes.
- Removed redundant loading indicators and streamlined loading behavior for improved user experience during data fetching.

assets/stylesheets/App.css

@@ -475,6 +475,67 @@ body {
 .ant-spin-blur {
   filter: blur(3px);
 }
+
+.spin {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  color: var(--color-primary);
+  font-size: 20px;
+  line-height: 1;
+}
+
+.spin-nested {
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  width: 100%;
+  height: 100%;
+  min-width: 0;
+  min-height: 0;
+  flex: 1;
+}
+
+.spin-content {
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  width: 100%;
+  height: 100%;
+  min-width: 0;
+  min-height: 0;
+  flex: 1;
+  transition: opacity 0.3s;
+}
+
+.spin-content.is-spinning {
+  filter: blur(3px);
+  opacity: 0.5;
+  user-select: none;
+  pointer-events: none;
+}
+
+.spin-overlay {
+  position: absolute;
+  inset: 0;
+  z-index: 4;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: var(--color-primary);
+  font-size: 20px;
+  pointer-events: none;
+}
+
+.spin.spin-sm,
+.spin-nested.spin-sm .spin-overlay {
+  font-size: 14px;
+}
+
+.spin.spin-lg,
+.spin-nested.spin-lg .spin-overlay {
+  font-size: 32px;
+}
 /* --- End of src/index.css --- */
 
 /* --- Start of src/components/Dashboard/Layout.css --- */
@@ -1377,26 +1438,6 @@ span.ant-skeleton-input.ant-skeleton-input-sm.text-skeleton {
   flex-direction: column;
 }
 
-.objectTableCardsContainer > .ant-spin-nested-loading,
-.objectTableCardsContainer > .ant-spin-nested-loading > .ant-spin-container,
-.objectTableCardsContainer .ant-spin-nested-loading {
-  width: 100%;
-  height: 100%;
-  min-height: 0;
-  flex: 1;
-  display: flex;
-  flex-direction: column;
-}
-
-.objectTableCardsContainer .ant-spin-container {
-  width: 100%;
-  height: 100%;
-  min-height: 0;
-  flex: 1;
-  display: flex;
-  flex-direction: column;
-}
-
 .objectKanbanContainerWrapper {
   position: relative;
   width: 100%;
@@ -1407,15 +1448,6 @@ span.ant-skeleton-input.ant-skeleton-input-sm.text-skeleton {
   flex-direction: column;
 }
 
-.objectKanbanContainerWrapper > .ant-spin-nested-loading,
-.objectKanbanContainerWrapper > .ant-spin-nested-loading > .ant-spin-container {
-  height: 100%;
-  min-height: 0;
-  flex: 1;
-  display: flex;
-  flex-direction: column;
-}
-
 .objectKanbanContainerSkeletons {
   display: flex;
   flex-direction: column;
@@ -1449,12 +1481,8 @@ span.ant-skeleton-input.ant-skeleton-input-sm.text-skeleton {
   height: 100%;
   min-width: 0;
   min-height: 0;
-}
+  display: flex;
-
+  flex-direction: column;
-.objectKanbanWrap > .ant-spin-nested-loading,
-.objectKanbanWrap > .ant-spin-nested-loading > .ant-spin-container {
-  height: 100%;
-  min-height: 0;
 }
 
 .objectKanbanScroll {

src/components/Dashboard/common/ObjectKanban.jsx

@@ -8,14 +8,14 @@ import {
   useRef,
   useState
 } from 'react'
-import { Empty, Flex, Spin } from 'antd'
+import { Empty, Flex } from 'antd'
-import { LoadingOutlined } from '@ant-design/icons'
 import PropTypes from 'prop-types'
 import { ApiServerContext } from '../context/ApiServerContext'
 import ObjectCard from './ObjectCard'
 import ObjectKanbanColumn from './ObjectKanbanColumn'
 import ObjectKanbanHeader from './ObjectKanbanHeader'
 import ScrollBox from './ScrollBox'
+import Spin from './Spin'
 import { getCategoryValueKey } from './viewModeUtils'
 
 const KANBAN_COLUMN_WIDTH = 360
@@ -311,11 +311,7 @@ const ObjectKanban = forwardRef(
 
     return (
       <div className='objectKanbanContainerWrapper'>
-        <Spin
+        <Spin spinning={showSkeleton}>
-          indicator={<LoadingOutlined />}
-          spinning={showSkeleton}
-          style={{ height: '100%', flex: 1, minHeight: 0 }}
-        >
           <div className='objectKanbanContainerSkeletons'>
             <ObjectKanbanHeader
               categoryValues={categoryValues}

src/components/Dashboard/common/ObjectKanbanColumn.jsx

@@ -9,11 +9,11 @@ import {
   useRef,
   useState
 } from 'react'
-import { Flex, Spin } from 'antd'
+import { Flex } from 'antd'
-import { LoadingOutlined } from '@ant-design/icons'
 import PropTypes from 'prop-types'
 import { ApiServerContext } from '../context/ApiServerContext'
 import ObjectCard from './ObjectCard'
+import Spin from './Spin'
 import { toCategoryFilterValue } from './viewModeUtils'
 
 const SCROLL_THRESHOLD = 50
@@ -501,7 +501,7 @@ const ObjectKanbanColumn = forwardRef(
     return (
       <Flex vertical className='objectKanbanColumn'>
         <div className='objectKanbanColumnCards' ref={containerRef}>
-          <Spin indicator={<LoadingOutlined />} spinning={loading}>
+          <Spin spinning={loading}>
             <Flex
               vertical
               gap='middle'

src/components/Dashboard/common/ObjectTable.jsx

@@ -15,7 +15,6 @@ import {
   Row,
   Col,
   Flex,
-  Spin,
   Button,
   Space,
   Form,
@@ -47,6 +46,7 @@ import { useActions } from '../context/ActionsContext'
 import ActionsIcon from '../../Icons/ActionsIcon'
 import FilterIcon from '../../Icons/FilterIcon'
 import ScrollBox from './ScrollBox'
+import Spin from './Spin'
 import SimplePropertyFilter from './SimplePropertyFilter'
 import QuickPropertyFilters from './QuickPropertyFilters'
 import FilterInput from './FilterInput'
@@ -2022,11 +2022,7 @@ const ObjectTable = forwardRef(
           <Splitter.Panel>
             {isKanban ? (
               <div className='objectKanbanWrap'>
-                <Spin
+                <Spin spinning={loading}>
-                  indicator={<LoadingOutlined />}
-                  spinning={loading}
-                  style={{ height: '100%' }}
-                >
                   <ObjectKanban
                     ref={kanbanRef}
                     type={type}
@@ -2049,41 +2045,28 @@ const ObjectTable = forwardRef(
                 className='objectTableCardsContainer'
                 ref={objectTableCardsContainerRef}
               >
-                <Spin
+                <Spin spinning={loading}>{renderCards()}</Spin>
-                  indicator={<LoadingOutlined />}
-                  spinning={loading}
-                  style={{
-                    height: '300px',
-                    flex: 1,
-                    minHeight: 0,
-                    width: '100%'
-                  }}
-                >
-                  {renderCards()}
-                </Spin>
               </div>
             ) : (
-              <Table
+              <Spin spinning={loading}>
-                key={tableListKey}
+                <Table
-                ref={tableRef}
+                  key={tableListKey}
-                dataSource={tableData}
+                  ref={tableRef}
-                columns={columnsWithSkeleton}
+                  dataSource={tableData}
-                className='dashboard-table'
+                  columns={columnsWithSkeleton}
-                pagination={false}
+                  className='dashboard-table'
-                scroll={{ y: adjustedScrollHeight }}
+                  pagination={false}
-                rowKey='_id'
+                  scroll={{ y: adjustedScrollHeight }}
-                loading={{
+                  rowKey='_id'
-                  spinning: loading,
+                  onScroll={handleScroll}
-                  indicator: <LoadingOutlined spin />
+                  onChange={handleTableChange}
-                }}
+                  showSorterTooltip={false}
-                onScroll={handleScroll}
+                  style={{ height: '100%' }}
-                onChange={handleTableChange}
+                  size={size}
-                showSorterTooltip={false}
+                  components={components}
-                style={{ height: '100%' }}
+                  onRow={onRow}
-                size={size}
+                />
-                components={components}
+              </Spin>
-                onRow={onRow}
-              />
             )}
           </Splitter.Panel>
           {(showSortSidebar || showFilterSidebar) && (

src/components/Dashboard/common/Spin.jsx

@@ -0,0 +1,77 @@
+import PropTypes from 'prop-types'
+import { LoadingOutlined } from '@ant-design/icons'
+
+const SIZE_CLASS = {
+  small: 'spin-sm',
+  default: '',
+  large: 'spin-lg'
+}
+
+const DEFAULT_INDICATOR = (
+  <LoadingOutlined spin style={{ color: 'var(--color-primary)' }} />
+)
+
+const Spin = ({
+  spinning = true,
+  children,
+  indicator = DEFAULT_INDICATOR,
+  size = 'default',
+  style,
+  className
+}) => {
+  const sizeClass = SIZE_CLASS[size] ?? ''
+
+  if (children == null) {
+    if (!spinning) return null
+
+    return (
+      <div
+        className={['spin', sizeClass, className].filter(Boolean).join(' ')}
+        style={style}
+        role='status'
+        aria-live='polite'
+      >
+        {indicator}
+      </div>
+    )
+  }
+
+  return (
+    <div
+      className={[
+        'spin-nested',
+        spinning ? 'is-spinning' : null,
+        sizeClass,
+        className
+      ]
+        .filter(Boolean)
+        .join(' ')}
+      style={style}
+    >
+      {spinning && (
+        <div className='spin-overlay' role='status' aria-live='polite'>
+          {indicator}
+        </div>
+      )}
+      <div
+        className={['spin-content', spinning ? 'is-spinning' : null]
+          .filter(Boolean)
+          .join(' ')}
+        aria-busy={spinning}
+      >
+        {children}
+      </div>
+    </div>
+  )
+}
+
+Spin.propTypes = {
+  spinning: PropTypes.bool,
+  children: PropTypes.node,
+  indicator: PropTypes.node,
+  size: PropTypes.oneOf(['small', 'default', 'large']),
+  style: PropTypes.object,
+  className: PropTypes.string
+}
+
+export default Spin