Feature/modify tag links by drag and drop (#7469)

* change tags link by drag and drop

* optimize

* optimize drag image

* optimize drag effect

* update codes

---------

Co-authored-by: zhouwenxuan <aries@Mac.local>
Co-authored-by: renjie-run <rj.aiyayao@gmail.com>

frontend/src/components/sf-table/index.js

@@ -158,6 +158,8 @@ SFTable.propTypes = {
   onGridKeyUp: PropTypes.func,
   loadMore: PropTypes.func,
   loadAll: PropTypes.func,
+  moveRecords: PropTypes.func,
+  renderCustomDraggedRows: PropTypes.func,
 };
 
 export default SFTable;

frontend/src/components/sf-table/table-main/records/index.js

@@ -1,5 +1,6 @@
 import React, { Component } from 'react';
 import PropTypes from 'prop-types';
+import classnames from 'classnames';
 import { HorizontalScrollbar } from '../../scrollbar';
 import RecordsHeader from '../records-header';
 import Body from './body';
@@ -7,6 +8,7 @@ import TreeBody from './tree-body';
 import GroupBody from './group-body';
 import RecordsFooter from '../records-footer';
 import ContextMenu from '../../context-menu';
+import RecordDragLayer from './record-drag-layer';
 import { RecordMetrics } from '../../utils/record-metrics';
 import { TreeMetrics } from '../../utils/tree-metrics';
 import { recalculate } from '../../utils/column';
@@ -43,6 +45,7 @@ class Records extends Component {
     const { width: tableContentWidth } = props.getTableContentRect();
     const initHorizontalScrollState = this.getHorizontalScrollState({ gridWidth: tableContentWidth, columnMetrics, scrollLeft: 0 });
     this.state = {
+      draggingRecordSource: null,
       columnMetrics,
       recordMetrics: this.createRowMetrics(),
       treeMetrics: this.createTreeMetrics(),
@@ -832,13 +835,66 @@ class Records extends Component {
     return columnVisibleEnd;
   };
 
-  renderRecordsBody = ({ containerWidth }) => {
-    const { recordMetrics, columnMetrics, colOverScanStartIdx, colOverScanEndIdx } = this.state;
+  handleDragRecordsEnd = () => {
+    this.setState({ draggingRecordSource: null });
+  };
+
+  handleDragRecordStart = (event, { draggingRecordId, draggingTreeNodeKey }) => {
+    this.setState({
+      draggingRecordSource: {
+        event,
+        draggingRecordId,
+        draggingTreeNodeKey
+      }
+    });
+  };
+
+  handleDropRecords = ({ dropRecordId, dropTreeNodeKey } = {}) => {
+    const { showRecordAsTree } = this.props;
+    const { draggingRecordSource, treeMetrics, recordMetrics } = this.state;
+    const dropTarget = showRecordAsTree ? dropTreeNodeKey : dropRecordId;
+    if (!dropTarget) return;
+
+    const { draggingRecordId, draggingTreeNodeKey } = draggingRecordSource;
+    const draggingSource = showRecordAsTree ? TreeMetrics.getDraggedTreeNodesKeys(draggingTreeNodeKey, treeMetrics) : RecordMetrics.getDraggedRecordsIds(draggingRecordId, recordMetrics);
+    this.props.moveRecords({ draggingSource, dropTarget });
+    this.handleDragRecordsEnd();
+  };
+
+  getRecordDragDropEvents = () => {
+    if (!this.props.moveRecords) return null;
+    if (!this.recordDragDropEvents) {
+      this.recordDragDropEvents = {
+        onDragStart: this.handleDragRecordStart,
+        onDrop: this.handleDropRecords,
+        onDragEnd: this.handleDragRecordsEnd,
+      };
+    }
+    return this.recordDragDropEvents;
+  };
+
+  createRecordsDragLayer = () => {
+    const { draggingRecordSource, recordMetrics, treeMetrics } = this.state;
+    if (!draggingRecordSource) return null;
+    return (
+      <RecordDragLayer
+        showRecordAsTree={this.props.showRecordAsTree}
+        draggingRecordSource={draggingRecordSource}
+        recordMetrics={recordMetrics}
+        treeMetrics={treeMetrics}
+        renderCustomDraggedRows={this.props.renderCustomDraggedRows}
+      />
+    );
+  };
+
+  renderRecordsBody = ({ containerWidth, recordDraggable }) => {
+    const { recordMetrics, columnMetrics, colOverScanStartIdx, colOverScanEndIdx, draggingRecordSource } = this.state;
     const { columns, allColumns, totalWidth, lastFrozenColumnKey, frozenColumnsWidth } = columnMetrics;
+    const recordDragDropEvents = this.getRecordDragDropEvents();
     const commonProps = {
       ...this.props,
       columns, allColumns, totalWidth, lastFrozenColumnKey, frozenColumnsWidth,
-      recordMetrics, colOverScanStartIdx, colOverScanEndIdx,
+      recordMetrics, colOverScanStartIdx, colOverScanEndIdx, recordDraggable, recordDragDropEvents, draggingRecordSource,
       contextMenu: (
         <ContextMenu
           {...this.props}
@@ -900,11 +956,12 @@ class Records extends Component {
     const containerWidth = this.getContainerWidth();
     const hasSelectedRecord = this.checkHasSelectedRecord();
     const isSelectedAll = this.checkIsSelectAll();
+    const recordDraggable = !!this.props.moveRecords;
 
     return (
       <>
         <div
-          className={`sf-table-result-container ${this.isWindows ? 'windows-browser' : ''}`}
+          className={classnames('sf-table-result-container', { 'windows-browser': this.isWindows, 'record-draggable': recordDraggable })}
           ref={this.setResultContainerRef}
           onScroll={this.onContentScroll}
           onClick={this.onClickContainer}
@@ -933,9 +990,10 @@ class Records extends Component {
               modifyColumnWidth={this.props.modifyColumnWidth}
               insertColumn={this.props.insertColumn}
             />
-            {this.renderRecordsBody({ containerWidth })}
+            {this.renderRecordsBody({ containerWidth, recordDraggable })}
           </div>
         </div>
+        {this.createRecordsDragLayer()}
         {this.isWindows && this.isWebkit && (
           <HorizontalScrollbar
             ref={this.setHorizontalScrollbarRef}
@@ -1010,6 +1068,7 @@ Records.propTypes = {
   getCopiedRecordsAndColumnsFromRange: PropTypes.func,
   moveRecord: PropTypes.func,
   addFolder: PropTypes.func,
+  moveRecords: PropTypes.func,
 };
 
 export default Records;

frontend/src/components/sf-table/table-main/records/record-drag-layer.js

@@ -0,0 +1,36 @@
+import React, { useCallback, useEffect, useRef } from 'react';
+import { TreeMetrics } from '../../utils/tree-metrics';
+import { RecordMetrics } from '../../utils/record-metrics';
+
+const RecordDragLayer = ({ showRecordAsTree, draggingRecordSource, recordMetrics, treeMetrics, renderCustomDraggedRows }) => {
+  const layerRef = useRef(null);
+
+  useEffect(() => {
+    if (layerRef.current && draggingRecordSource.event) {
+      draggingRecordSource.event.dataTransfer.setDragImage(layerRef.current, 15, 15);
+    }
+  }, [draggingRecordSource]);
+
+  const getDraggedRowsIds = useCallback(() => {
+    const { draggingRecordId, draggingTreeNodeKey } = draggingRecordSource;
+    return showRecordAsTree ? TreeMetrics.getDraggedTreeNodesKeys(draggingTreeNodeKey, treeMetrics) : RecordMetrics.getDraggedRecordsIds(draggingRecordId, recordMetrics);
+  }, [showRecordAsTree, draggingRecordSource, treeMetrics, recordMetrics]);
+
+  const renderDraggedRows = useCallback(() => {
+    const draggedRowsIds = getDraggedRowsIds();
+    if (renderCustomDraggedRows) {
+      return renderCustomDraggedRows(draggedRowsIds);
+    }
+    return null;
+  }, [getDraggedRowsIds, renderCustomDraggedRows]);
+
+  return (
+    <div className="sf-table-record-drag-layer" ref={layerRef}>
+      <table className='record-drag-layer-table'>
+        <tbody>{renderDraggedRows()}</tbody>
+      </table>
+    </div>
+  );
+};
+
+export default RecordDragLayer;

frontend/src/components/sf-table/table-main/records/record/actions-cell/index.js

@@ -70,6 +70,14 @@ class ActionsCell extends Component {
         onMouseEnter={this.onCellMouseEnter}
         onMouseLeave={this.onCellMouseLeave}
       >
+        {this.props.recordDraggable &&
+          <div
+            draggable
+            className="drag-handler"
+            onDragStart={this.props.handleDragStart}
+          >
+          </div>
+        }
         {!isSelected && <div className="sf-table-column-content row-index text-truncate">{this.getRecordNo()}</div>}
         <div className="sf-table-column-content actions-checkbox">
           <div className="select-cell-checkbox-container" onClick={this.props.onSelectRecord}>
@@ -100,10 +108,12 @@ ActionsCell.propTypes = {
   isLocked: PropTypes.bool,
   isSelected: PropTypes.bool,
   isLastFrozenCell: PropTypes.bool,
+  recordDraggable: PropTypes.bool,
   recordId: PropTypes.string,
   index: PropTypes.number,
   height: PropTypes.number,
   onSelectRecord: PropTypes.func,
+  handleDragStart: PropTypes.func,
 };
 
 export default ActionsCell;

frontend/src/components/sf-table/table-main/records/record/index.css

@@ -24,3 +24,62 @@
 .frozen-columns {
   background-color: #fff;
 }
+
+.sf-table-result-content .sf-table-row.can-drop-tip .sf-table-cell {
+  background-color: rgb(200, 220, 240) !important;
+}
+
+.sf-table-result-container.record-draggable .sf-table-row .drag-handler {
+  position: absolute;
+  left: 0;
+  top: 1px;
+  height: 30px;
+  width: 12px;
+}
+
+.sf-table-result-container.record-draggable .sf-table-row:hover .drag-handler {
+  background-image: url(../../../../../../../media/img/grippy_large.png);
+  background-repeat: no-repeat;
+  cursor: grab;
+}
+
+.sf-table-record-drag-layer {
+  position: fixed;
+  z-index: -1;
+  left: -9999;
+  top: 0;
+  pointer-events: none;
+  cursor: grabbing;
+}
+
+.sf-table-record-drag-layer .record-drag-layer-table {
+  width: auto;
+}
+
+.sf-table-record-drag-layer .rdg-dragged-record {
+  display: flex;
+  min-height: 32px;
+  height: auto;
+  padding: 0 1rem;
+  border-left: 1px solid #ddd;
+  border-bottom: 1px solid #ddd;
+  border-right: 1px solid #ddd;
+  background-color: #fff;
+}
+
+.sf-table-record-drag-layer .rdg-dragged-record:first-child {
+  border-top: 1px solid #ddd;
+}
+
+.sf-table-record-drag-layer .rdg-dragged-record .rdg-dragged-record-cell {
+  display: flex;
+  align-items: center;
+  min-width: 80px;
+  height: 32px;
+  padding: 8px;
+  border-bottom: none;
+}
+
+.sf-table-record-drag-layer .rdg-dragged-record .rdg-dragged-record-cell:last-child {
+  border-right: none;
+}

frontend/src/components/sf-table/table-main/records/record/index.js

@@ -10,11 +10,18 @@ import './index.css';
 
 class Record extends React.Component {
 
+  constructor(props) {
+    super(props);
+    this.state = {
+      canDropTip: false,
+    };
+  }
+
   componentDidMount() {
     this.checkScroll();
   }
 
-  shouldComponentUpdate(nextProps) {
+  shouldComponentUpdate(nextProps, nextState) {
     return (
       nextProps.isGroupView !== this.props.isGroupView ||
       nextProps.hasSelectedCell !== this.props.hasSelectedCell ||
@@ -40,7 +47,8 @@ class Record extends React.Component {
       nextProps.treeNodeKey !== this.props.treeNodeKey ||
       nextProps.treeNodeDepth !== this.props.treeNodeDepth ||
       nextProps.hasChildNodes !== this.props.hasChildNodes ||
-      nextProps.isFoldedTreeNode !== this.props.isFoldedTreeNode
+      nextProps.isFoldedTreeNode !== this.props.isFoldedTreeNode ||
+      nextState.canDropTip !== this.state.canDropTip
     );
   }
 
@@ -222,23 +230,67 @@ class Record extends React.Component {
     return style;
   };
 
-  // handle drag copy
+  handleDragStart = (event) => {
+    event.stopPropagation();
+    if (!this.props.recordDraggable) return;
+    const { record, treeNodeKey } = this.props;
+    const draggingRecordSource = { draggingRecordId: record._id, draggingTreeNodeKey: treeNodeKey };
+    event.dataTransfer.effectAllowed = 'move';
+    this.props.recordDragDropEvents.onDragStart(event, draggingRecordSource);
+  };
+
+  checkHasDraggedRecord = () => {
+    return !!this.props.draggingRecordSource;
+  };
+
+  checkOverDraggingRecord = () => {
+    const { draggingRecordSource, record, treeNodeKey, showRecordAsTree } = this.props;
+    if (!this.checkHasDraggedRecord()) return false;
+
+    const { draggingRecordId, draggingTreeNodeKey } = draggingRecordSource;
+    if (showRecordAsTree) {
+      return draggingTreeNodeKey === treeNodeKey;
+    }
+    return draggingRecordId === record._id;
+  };
+
   handleDragEnter = (e) => {
-    // Prevent default to allow drop
     e.preventDefault();
-    const { index, groupRecordIndex, cellMetaData: { onDragEnter } } = this.props;
-    onDragEnter({ overRecordIdx: index, overGroupRecordIndex: groupRecordIndex });
+    if (this.checkHasDraggedRecord() && !this.checkOverDraggingRecord()) {
+      this.setState({ canDropTip: true });
+    }
+  };
+
+  handleDragLeave = (e) => {
+    const { clientX, clientY } = e;
+    const { left, top, width, height } = this.rowRef.getBoundingClientRect();
+    if (clientX > left && clientX < left + width && clientY > top && clientY < top + height - 2) return;
+    this.setState({ canDropTip: false });
   };
 
   handleDragOver = (e) => {
     e.preventDefault();
-    e.dataTransfer.dropEffect = 'copy';
+    e.dataTransfer.dropEffect = this.checkHasDraggedRecord() ? 'move' : 'copy';
+    if (this.checkHasDraggedRecord() && !this.checkOverDraggingRecord()) {
+      this.setState({ canDropTip: true });
+    }
   };
 
   handleDrop = (e) => {
-    // The default in Firefox is to treat data in dataTransfer as a URL and perform navigation on it, even if the data type used is 'text'
-    // To bypass this, we need to capture and prevent the drop event.
     e.preventDefault();
+    e.stopPropagation();
+    this.setState({ canDropTip: false });
+    if (!this.checkHasDraggedRecord() || this.checkOverDraggingRecord()) {
+      this.props.recordDragDropEvents.onDragEnd();
+      return;
+    }
+    const { record, treeNodeKey } = this.props;
+    const dropTarget = { dropRecordId: record._id, dropTreeNodeKey: treeNodeKey };
+    this.props.recordDragDropEvents.onDrop(dropTarget);
+  };
+
+  onDragEnd = () => {
+    this.props.recordDragDropEvents.onDragEnd();
   };
 
   render() {
@@ -253,15 +305,19 @@ class Record extends React.Component {
 
     return (
       <div
+        ref={rowRef => this.rowRef = rowRef}
         className={classnames('sf-table-row', {
           'sf-table-last-row': isLastRecord,
           'row-selected': isSelected,
-          'row-locked': isLocked
+          'row-locked': isLocked,
+          'can-drop-tip': this.state.canDropTip,
         })}
         style={this.getRecordStyle()}
         onDragEnter={this.handleDragEnter}
+        onDragLeave={this.handleDragLeave}
         onDragOver={this.handleDragOver}
         onDrop={this.handleDrop}
+        onDragEnd={this.onDragEnd}
       >
         {/* frozen */}
         <div
@@ -280,6 +336,8 @@ class Record extends React.Component {
               onSelectRecord={this.onSelectRecord}
               isLastFrozenCell={!lastFrozenColumnKey}
               height={cellHeight}
+              recordDraggable={this.props.recordDraggable}
+              handleDragStart={this.handleDragStart}
             />
           }
           {frozenCells}
@@ -311,6 +369,7 @@ Record.propTypes = {
   top: PropTypes.number,
   left: PropTypes.number,
   height: PropTypes.number,
+  recordDraggable: PropTypes.bool,
   selectNoneCells: PropTypes.func,
   onSelectRecord: PropTypes.func,
   checkCanModifyRecord: PropTypes.func,

frontend/src/components/sf-table/table-main/records/tree-body.js

@@ -598,6 +598,9 @@ class TreeBody extends Component {
           colOverScanStartIdx={this.props.colOverScanStartIdx}
           colOverScanEndIdx={this.props.colOverScanEndIdx}
           lastFrozenColumnKey={this.props.lastFrozenColumnKey}
+          recordDraggable={this.props.recordDraggable}
+          recordDragDropEvents={this.props.recordDragDropEvents}
+          draggingRecordSource={this.props.draggingRecordSource}
           scrollLeft={scrollLeft}
           height={rowHeight}
           cellMetaData={cellMetaData}
@@ -693,6 +696,9 @@ TreeBody.propTypes = {
   treeNodeKeyRecordIdMap: PropTypes.object,
   keyTreeNodeFoldedMap: PropTypes.object,
   treeMetrics: PropTypes.object,
+  recordDraggable: PropTypes.bool,
+  recordDragDropEvents: PropTypes.object,
+  draggingRecordSource: PropTypes.object,
   columns: PropTypes.array.isRequired,
   CellOperationBtn: PropTypes.object,
   colOverScanStartIdx: PropTypes.number,
@@ -727,7 +733,6 @@ TreeBody.propTypes = {
   frozenColumnsWidth: PropTypes.number,
   editMobileCell: PropTypes.func,
   reloadRecords: PropTypes.func,
-  appPage: PropTypes.object,
   showCellColoring: PropTypes.bool,
   columnColors: PropTypes.object,
   onFillingDragRows: PropTypes.func,

frontend/src/components/sf-table/utils/record-metrics.js

@@ -42,6 +42,14 @@ function isSelectedAll(recordIds, recordMetrics) {
   return recordIds.every(recordId => isRecordSelected(recordId, recordMetrics));
 }
 
+function getDraggedRecordsIds(draggingRecordId, recordMetrics) {
+  const selectedRecordIds = getSelectedIds(recordMetrics);
+  if (selectedRecordIds.includes(draggingRecordId)) {
+    return selectedRecordIds;
+  }
+  return [draggingRecordId];
+}
+
 export const RecordMetrics = {
   selectRecord,
   selectRecordsById,
@@ -51,4 +59,5 @@ export const RecordMetrics = {
   getSelectedIds,
   hasSelectedRecords,
   isSelectedAll,
+  getDraggedRecordsIds,
 };

frontend/src/components/sf-table/utils/tree-metrics.js

@@ -49,6 +49,14 @@ const checkIsSelectedAll = (nodeKeys, treeMetrics) => {
   return nodeKeys.every(nodeKey => checkIsTreeNodeSelected(nodeKey, treeMetrics));
 };
 
+const getDraggedTreeNodesKeys = (draggingTreeNodeKey, treeMetrics) => {
+  const selectedNodeKeys = getSelectedTreeNodesKeys(treeMetrics);
+  if (selectedNodeKeys.includes(draggingTreeNodeKey)) {
+    return selectedNodeKeys;
+  }
+  return [draggingTreeNodeKey];
+};
+
 export const TreeMetrics = {
   checkIsTreeNodeSelected,
   selectTreeNode,
@@ -59,4 +67,5 @@ export const TreeMetrics = {
   getSelectedIds,
   checkHasSelectedTreeNodes,
   checkIsSelectedAll,
+  getDraggedTreeNodesKeys,
 };

frontend/src/tag/hooks/tags.js

@@ -200,6 +200,10 @@ export const TagsProvider = ({ repoID, currentPath, selectTagsView, children, ..
     storeRef.current.deleteTagLinks(columnKey, tagId, otherTagsIds, success_callback, fail_callback);
   }, [storeRef]);
 
+  const deleteTagsLinks = useCallback((columnKey, tagId, idLinkedRowsIdsMap, { success_callback, fail_callback } = {}) => {
+    storeRef.current.deleteTagsLinks(columnKey, tagId, idLinkedRowsIdsMap, success_callback, fail_callback);
+  }, [storeRef]);
+
   const mergeTags = useCallback((target_tag_id, merged_tags_ids, { success_callback, fail_callback } = {}) => {
     storeRef.current.mergeTags(target_tag_id, merged_tags_ids, success_callback, fail_callback);
   }, [storeRef]);
@@ -284,6 +288,7 @@ export const TagsProvider = ({ repoID, currentPath, selectTagsView, children, ..
       updateTag,
       addTagLinks,
       deleteTagLinks,
+      deleteTagsLinks,
       mergeTags,
       updateLocalTag,
       selectTag: handleSelectTag,

frontend/src/tag/store/data-processor.js

@@ -237,6 +237,7 @@ class DataProcessor {
       }
       case OPERATION_TYPE.ADD_TAG_LINKS:
       case OPERATION_TYPE.DELETE_TAG_LINKS:
+      case OPERATION_TYPE.DELETE_TAGS_LINKS:
       case OPERATION_TYPE.MERGE_TAGS: {
         this.buildTagsTree(table.rows, table);
         break;

frontend/src/tag/store/index.js

@@ -386,6 +386,19 @@ class Store {
     this.applyOperation(operation);
   }
 
+  deleteTagsLinks(column_key, id_linked_rows_ids_map, success_callback, fail_callback) {
+    const type = OPERATION_TYPE.DELETE_TAGS_LINKS;
+    const operation = this.createOperation({
+      type,
+      repo_id: this.repoId,
+      column_key,
+      id_linked_rows_ids_map,
+      success_callback,
+      fail_callback,
+    });
+    this.applyOperation(operation);
+  }
+
   mergeTags(target_tag_id, merged_tags_ids, success_callback, fail_callback) {
     const type = OPERATION_TYPE.MERGE_TAGS;
     const operation = this.createOperation({

frontend/src/tag/store/operations/apply.js

@@ -219,6 +219,56 @@ export default function apply(data, operation) {
       }
       return data;
     }
+    case OPERATION_TYPE.DELETE_TAGS_LINKS: {
+      const { column_key, id_linked_rows_ids_map } = operation;
+      const operatedIds = id_linked_rows_ids_map && Object.keys(id_linked_rows_ids_map);
+      if (!operatedIds || operatedIds.length === 0) {
+        return data;
+      }
+      data.rows = [...data.rows];
+      if (column_key === PRIVATE_COLUMN_KEY.PARENT_LINKS) {
+        data.rows.forEach((row, index) => {
+          const currentRowId = row._id;
+          const other_rows_ids = id_linked_rows_ids_map[currentRowId];
+          let updatedRow = { ...row };
+          if (other_rows_ids) {
+            // remove parent tags from current tag
+            updatedRow = removeRowLinks(updatedRow, PRIVATE_COLUMN_KEY.PARENT_LINKS, other_rows_ids);
+          }
+
+          // remove current tag as child tag from related tags
+          operatedIds.forEach((operatedId) => {
+            const other_rows_ids = id_linked_rows_ids_map[operatedId];
+            if (other_rows_ids && other_rows_ids.includes(currentRowId)) {
+              updatedRow = removeRowLinks(updatedRow, PRIVATE_COLUMN_KEY.SUB_LINKS, [operatedId]);
+            }
+          });
+          data.rows[index] = updatedRow;
+          data.id_row_map[currentRowId] = updatedRow;
+        });
+      } else if (column_key === PRIVATE_COLUMN_KEY.SUB_LINKS) {
+        data.rows.forEach((row, index) => {
+          const currentRowId = row._id;
+          const other_rows_ids = id_linked_rows_ids_map[currentRowId];
+          let updatedRow = { ...row };
+          if (other_rows_ids) {
+            // remove child tags from current tag
+            updatedRow = removeRowLinks(updatedRow, PRIVATE_COLUMN_KEY.SUB_LINKS, other_rows_ids);
+          }
+
+          // remove current tag as parent tag from related tags
+          operatedIds.forEach((operatedId) => {
+            const other_rows_ids = id_linked_rows_ids_map[operatedId];
+            if (other_rows_ids && other_rows_ids.includes(currentRowId)) {
+              updatedRow = removeRowLinks(updatedRow, PRIVATE_COLUMN_KEY.PARENT_LINKS, [operatedId]);
+            }
+          });
+          data.rows[index] = updatedRow;
+          data.id_row_map[currentRowId] = updatedRow;
+        });
+      }
+      return data;
+    }
     case OPERATION_TYPE.MERGE_TAGS: {
       const { target_tag_id, merged_tags_ids } = operation;
       const targetTag = getRowById(data, target_tag_id);

frontend/src/tag/store/operations/constants.js

@@ -7,6 +7,7 @@ export const OPERATION_TYPE = {
   RELOAD_RECORDS: 'reload_records',
   ADD_TAG_LINKS: 'add_tag_links',
   DELETE_TAG_LINKS: 'delete_tag_links',
+  DELETE_TAGS_LINKS: 'delete_tags_links',
   MERGE_TAGS: 'merge_tags',
 
   MODIFY_LOCAL_RECORDS: 'modify_local_records',
@@ -24,6 +25,7 @@ export const OPERATION_ATTRIBUTES = {
   [OPERATION_TYPE.RELOAD_RECORDS]: ['repo_id', 'row_ids'],
   [OPERATION_TYPE.ADD_TAG_LINKS]: ['repo_id', 'column_key', 'row_id', 'other_rows_ids'],
   [OPERATION_TYPE.DELETE_TAG_LINKS]: ['repo_id', 'column_key', 'row_id', 'other_rows_ids'],
+  [OPERATION_TYPE.DELETE_TAGS_LINKS]: ['repo_id', 'column_key', 'id_linked_rows_ids_map'],
   [OPERATION_TYPE.MERGE_TAGS]: ['repo_id', 'target_tag_id', 'merged_tags_ids'],
   [OPERATION_TYPE.MODIFY_LOCAL_RECORDS]: ['repo_id', 'row_ids', 'id_row_updates', 'id_original_row_updates', 'id_old_row_data', 'id_original_old_row_data', 'is_copy_paste', 'is_rename', 'id_obj_id'],
   [OPERATION_TYPE.MODIFY_LOCAL_FILE_TAGS]: ['file_id', 'tags_ids'],

frontend/src/tag/store/server-operator.js

@@ -97,6 +97,15 @@ class ServerOperator {
         });
         break;
       }
+      case OPERATION_TYPE.DELETE_TAGS_LINKS: {
+        const { column_key, id_linked_rows_ids_map } = operation;
+        this.context.deleteTagLinks(column_key, id_linked_rows_ids_map).then(res => {
+          callback({ operation });
+        }).catch(error => {
+          callback({ error: gettext('Failed to delete linked tags') });
+        });
+        break;
+      }
       case OPERATION_TYPE.MERGE_TAGS: {
         const { target_tag_id, merged_tags_ids } = operation;
         this.context.mergeTags(target_tag_id, merged_tags_ids).then((res) => {

frontend/src/tag/views/all-tags/tags-table/dragged-tags-layer.js

@@ -0,0 +1,27 @@
+import React, { useMemo } from 'react';
+import { getTreeNodeByKey, getTreeNodeId } from '../../../../components/sf-table/utils/tree';
+import { useTags } from '../../../hooks';
+import { getRowById } from '../../../../components/sf-table/utils/table';
+import TagNameFormatter from './formatter/tag-name';
+
+const DraggedTagsLayer = ({ draggedNodesKeys }) => {
+  const { tagsData } = useTags();
+
+  const keyTreeNodeMap = useMemo(() => {
+    return tagsData.key_tree_node_map || [];
+  }, [tagsData]);
+
+  return draggedNodesKeys.map((nodeKey) => {
+    const node = getTreeNodeByKey(nodeKey, keyTreeNodeMap);
+    const tagId = getTreeNodeId(node);
+    const tag = getRowById(tagsData, tagId);
+    if (!tag) return null;
+    return (
+      <tr key={`rdg-dragged-record-${nodeKey}`} className="rdg-dragged-record">
+        <td className="rdg-dragged-record-cell"><TagNameFormatter record={tag} /></td>
+      </tr>
+    );
+  });
+};
+
+export default DraggedTagsLayer;

frontend/src/tag/views/all-tags/tags-table/formatter/tag-name.js

@@ -4,6 +4,7 @@ import { useTags } from '../../../../hooks';
 import { PRIVATE_COLUMN_KEY } from '../../../../constants';
 import { getRecordIdFromRecord } from '../../../../../metadata/utils/cell';
 import { getTreeNodeKey } from '../../../../../components/sf-table/utils/tree';
+import { isNumber } from '../../../../../utils/number';
 
 const TagNameFormatter = ({ record, isCellSelected, setDisplayTag, treeNodeIndex }) => {
   const { tagsData } = useTags();
@@ -13,7 +14,7 @@ const TagNameFormatter = ({ record, isCellSelected, setDisplayTag, treeNodeIndex
   }, [tagsData]);
 
   const currentNode = useMemo(() => {
-    return tree[treeNodeIndex];
+    return isNumber(treeNodeIndex) ? tree[treeNodeIndex] : null;
   }, [tree, treeNodeIndex]);
 
   const tagColor = useMemo(() => {
@@ -28,7 +29,7 @@ const TagNameFormatter = ({ record, isCellSelected, setDisplayTag, treeNodeIndex
     if (!isCellSelected) return;
     const tagId = getRecordIdFromRecord(record);
     const nodeKey = getTreeNodeKey(currentNode);
-    setDisplayTag(tagId, nodeKey);
+    setDisplayTag && setDisplayTag(tagId, nodeKey);
   }, [isCellSelected, record, currentNode, setDisplayTag]);
 
   return (

frontend/src/tag/views/all-tags/tags-table/index.js

@@ -3,6 +3,7 @@ import PropTypes from 'prop-types';
 import SFTable from '../../../../components/sf-table';
 import EditTagDialog from '../../../components/dialog/edit-tag-dialog';
 import MergeTagsSelector from '../../../components/merge-tags-selector';
+import DraggedTagsLayer from './dragged-tags-layer';
 import { createTableColumns } from './columns-factory';
 import { createContextMenuOptions } from './context-menu-options';
 import { gettext } from '../../../../utils/constants';
@@ -13,6 +14,9 @@ import { EVENT_BUS_TYPE } from '../../../../metadata/constants';
 import { EVENT_BUS_TYPE as TABLE_EVENT_BUS_TYPE } from '../../../../components/sf-table/constants/event-bus-type';
 import { LOCAL_KEY_TREE_NODE_FOLDED } from '../../../../components/sf-table/constants/tree';
 import { isNumber } from '../../../../utils/number';
+import { getTreeNodeByKey, getTreeNodeId } from '../../../../components/sf-table/utils/tree';
+import { getRowById } from '../../../../components/sf-table/utils/table';
+import { getParentLinks } from '../../../utils/cell';
 
 import './index.css';
 
@@ -34,7 +38,7 @@ const TagsTable = ({
   loadMore,
   getTagsTableWrapperOffsets,
 }) => {
-  const { tagsData, updateTag, deleteTags, addTagLinks, deleteTagLinks, addChildTag, mergeTags } = useTags();
+  const { tagsData, updateTag, deleteTags, addTagLinks, deleteTagLinks, deleteTagsLinks, addChildTag, mergeTags } = useTags();
 
   const [isShowNewSubTagDialog, setIsShowNewSubTagDialog] = useState(false);
   const [isShowMergeTagsSelector, setIsShowMergeTagsSelector] = useState(false);
@@ -208,6 +212,56 @@ const TagsTable = ({
     }
   }, [scrollToCurrentSelectedCell]);
 
+  const renderCustomDraggedRows = useCallback((draggedNodesKeys) => {
+    if (!Array.isArray(draggedNodesKeys) || draggedNodesKeys.length === 0) return null;
+    return (
+      <DraggedTagsLayer draggedNodesKeys={draggedNodesKeys} />
+    );
+  }, []);
+
+  const moveTags = useCallback(({ draggingSource, dropTarget }) => {
+    const targetNode = getTreeNodeByKey(dropTarget, table.key_tree_node_map);
+    if (!Array.isArray(draggingSource) || draggingSource.length === 0 || !targetNode) return;
+    let draggingTagsIds = [];
+    let idNeedDeleteChildIds = {}; // { [parent_tag._id]: [child_tag._id] }
+    draggingSource.forEach((nodeKey) => {
+      const node = getTreeNodeByKey(nodeKey, table.key_tree_node_map);
+      const nodeId = getTreeNodeId(node);
+      const tag = getRowById(table, nodeId);
+
+      // find the child tags to delete which related to dragging tags
+      const parentLinks = getParentLinks(tag);
+      if (Array.isArray(parentLinks) && parentLinks.length > 0) {
+        parentLinks.forEach((link) => {
+          const parentTagId = link.row_id;
+          if (nodeKey.includes(parentTagId)) {
+            if (!idNeedDeleteChildIds[parentTagId]) {
+              idNeedDeleteChildIds[parentTagId] = [nodeId];
+            } else if (!idNeedDeleteChildIds[parentTagId].includes(nodeId)) {
+              idNeedDeleteChildIds[parentTagId].push(nodeId);
+            }
+          }
+        });
+      }
+
+      // get none-repeat dragging tags ids
+      if (!draggingTagsIds.includes(nodeId)) {
+        draggingTagsIds.push(nodeId);
+      }
+    });
+    if (draggingTagsIds.length === 0) return;
+
+    const targetTagId = getTreeNodeId(targetNode);
+    if (Object.keys(idNeedDeleteChildIds).length > 0) {
+      // need to delete child tags first
+      deleteTagsLinks(PRIVATE_COLUMN_KEY.SUB_LINKS, idNeedDeleteChildIds, () => {
+        addTagLinks(PRIVATE_COLUMN_KEY.SUB_LINKS, targetTagId, draggingTagsIds);
+      });
+    } else {
+      addTagLinks(PRIVATE_COLUMN_KEY.SUB_LINKS, targetTagId, draggingTagsIds);
+    }
+  }, [table, addTagLinks, deleteTagsLinks]);
+
   useEffect(() => {
     const eventBus = EventBus.getInstance();
     const unsubscribeUpdateSearchResult = eventBus.subscribe(EVENT_BUS_TYPE.UPDATE_SEARCH_RESULT, updateSearchResult);
@@ -242,6 +296,8 @@ const TagsTable = ({
         checkCellValueChanged={checkCellValueChanged}
         modifyColumnWidth={modifyColumnWidth}
         loadMore={loadMore}
+        renderCustomDraggedRows={renderCustomDraggedRows}
+        moveRecords={moveTags}
       />
       {isShowNewSubTagDialog && (
         <EditTagDialog tags={table.rows} title={gettext('New child tag')} onToggle={closeNewSubTagDialog} onSubmit={handelAddChildTag} />