undo, redo in table data editing

packages/web/src/datagrid/DataGridCore.js

@@ -96,7 +96,7 @@ const FocusField = styled.input`
 
 /** @param props {import('./types').DataGridProps} */
 export default function DataGridCore(props) {
-  const { conid, database, display, changeSet, setChangeSet, tabVisible } = props;
+  const { conid, database, display, changeSetState, dispatchChangeSet, tabVisible } = props;
   const columns = display.getGridColumns();
 
   // console.log(`GRID, conid=${conid}, database=${database}, sql=${sql}`);
@@ -129,6 +129,9 @@ export default function DataGridCore(props) {
   // const [inplaceEditorShouldSave, setInplaceEditorShouldSave] = React.useState(false);
   // const [inplaceEditorChangedOnCreate, setInplaceEditorChangedOnCreate] = React.useState(false);
 
+  const changeSet = changeSetState.value;
+  const setChangeSet = value => dispatchChangeSet({ type: 'set', value });
+
   const changeSetRef = React.useRef(changeSet);
 
   changeSetRef.current = changeSet;
@@ -537,6 +540,13 @@ export default function DataGridCore(props) {
   //   await sleep(1);
   // }
 
+  function undo() {
+    dispatchChangeSet({ type: 'undo' });
+  }
+  function redo() {
+    dispatchChangeSet({ type: 'redo' });
+  }
+
   function handleSave() {
     if (inplaceEditorState.cell) {
       // @ts-ignore
@@ -560,7 +570,7 @@ export default function DataGridCore(props) {
       data: { sql: confirmSql },
     });
 
-    setChangeSet(createChangeSet());
+    dispatchChangeSet({ type: 'reset', value: createChangeSet() });
     setConfirmSql(null);
     display.reload();
   }
@@ -577,6 +587,16 @@ export default function DataGridCore(props) {
       revertRowChanges();
     }
 
+    if (event.keyCode == keycodes.z && event.ctrlKey) {
+      event.preventDefault();
+      undo();
+    }
+
+    if (event.keyCode == keycodes.y && event.ctrlKey) {
+      event.preventDefault();
+      redo();
+    }
+
     if (event.keyCode == keycodes.c && event.ctrlKey) {
       event.preventDefault();
       copyToClipboard();

packages/web/src/datagrid/InplaceEditor.js

@@ -38,12 +38,16 @@ export default function InplaceEditor({
     if (isChangedRef.current) {
       const editor = editorRef.current;
       setChangeSet(setChangeSetValue(changeSet, definition, editor.value));
+      isChangedRef.current = false;
     }
     dispatchInsplaceEditor({ type: 'close' });
   }
   if (inplaceEditorState.shouldSave) {
     const editor = editorRef.current;
-    setChangeSet(setChangeSetValue(changeSet, definition, editor.value));
+    if (isChangedRef.current) {
+      setChangeSet(setChangeSetValue(changeSet, definition, editor.value));
+      isChangedRef.current = false;
+    }
     editor.blur();
     dispatchInsplaceEditor({ type: 'close', mode: 'save' });
   }
@@ -55,7 +59,10 @@ export default function InplaceEditor({
         dispatchInsplaceEditor({ type: 'close' });
         break;
       case keycodes.enter:
-        setChangeSet(setChangeSetValue(changeSet, definition, editor.value));
+        if (isChangedRef.current) {
+          setChangeSet(setChangeSetValue(changeSet, definition, editor.value));
+          isChangedRef.current = false;
+        }
         editor.blur();
         dispatchInsplaceEditor({ type: 'close', mode: 'enter' });
         break;

packages/web/src/datagrid/types.ts

@@ -5,6 +5,6 @@ export interface DataGridProps {
   database: string;
   display: GridDisplay;
   tabVisible?: boolean;
-  changeSet?: ChangeSet;
+  changeSetState: { value: ChangeSet };
-  setChangeSet?: Function;
+  dispatchChangeSet: Function;
 }

packages/web/src/tabs/TableDataTab.js

@@ -8,12 +8,13 @@ import useTableInfo from '../utility/useTableInfo';
 import useConnectionInfo from '../utility/useConnectionInfo';
 import engines from '@dbgate/engines';
 import getTableInfo from '../utility/getTableInfo';
+import useUndoReducer from '../utility/useUndoReducer';
 
 export default function TableDataTab({ conid, database, schemaName, pureName, tabVisible }) {
   const tableInfo = useTableInfo({ conid, database, schemaName, pureName });
   const [config, setConfig] = React.useState(createGridConfig());
   const [cache, setCache] = React.useState(createGridCache());
-  const [changeSet, setChangeSet] = React.useState(createChangeSet());
+  const [changeSetState, dispatchChangeSet] = useUndoReducer(createChangeSet());
 
   // console.log('changeSet', changeSet);
 
@@ -37,8 +38,8 @@ export default function TableDataTab({ conid, database, schemaName, pureName, ta
       database={database}
       display={display}
       tabVisible={tabVisible}
-      changeSet={changeSet}
+      changeSetState={changeSetState}
-      setChangeSet={setChangeSet}
+      dispatchChangeSet={dispatchChangeSet}
     />
   );
 }

packages/web/src/utility/useUndoReducer.js

@@ -0,0 +1,43 @@
+import React from 'react';
+
+function reducer(state, action) {
+  switch (action.type) {
+    case 'set':
+      // console.log('SET', state.history, action.value);
+      return {
+        history: [...state.history.slice(0, state.current + 1), action.value],
+        current: state.current + 1,
+        value: action.value,
+      };
+    case 'undo':
+      if (state.current > 0)
+        return {
+          history: state.history,
+          current: state.current - 1,
+          value: state.history[state.current - 1],
+        };
+      return state;
+    case 'redo':
+      if (state.current < state.history.length - 1)
+        return {
+          history: state.history,
+          current: state.current + 1,
+          value: state.history[state.current + 1],
+        };
+      return state;
+    case 'reset':
+      return {
+        history: [action.value],
+        current: 0,
+        value: action.value,
+      };
+  }
+}
+
+export default function useUndoReducer(initialValue) {
+  return React.useReducer(reducer, {
+    history: [initialValue],
+    current: 0,
+    value: initialValue,
+  });
+}