PanelEdit: VisulizationPicker doesn't show if panel has an unknown panel plugin (#35831)

* feat(dashboard): introduce selector with fallback for unknown plugin

* refactor(dashboard): replace redux connect with redux hooks

* fix(dashboard): add a fallback for vizpicker when a panel plugin cannot be found

* feat(dashboard): add an icon for fallback plugins for vizpicker

* refactor(dashboard): prefer HOF selector

public/app/features/dashboard/components/PanelEditor/VisualizationButton.tsx

@@ -1,45 +1,31 @@
 import React, { FC } from 'react';
 import { css } from '@emotion/css';
-import { GrafanaTheme, PanelPlugin } from '@grafana/data';
+import { GrafanaTheme } from '@grafana/data';
 import { ToolbarButton, ButtonGroup, useStyles } from '@grafana/ui';
 import { StoreState } from 'app/types';
-import { connect, MapStateToProps, MapDispatchToProps } from 'react-redux';
+import { useDispatch, useSelector } from 'react-redux';
 import { setPanelEditorUIState, toggleVizPicker } from './state/reducers';
 import { selectors } from '@grafana/e2e-selectors';
 import { PanelModel } from '../../state';
+import { getPanelPluginWithFallback } from '../../state/selectors';
 
-interface OwnProps {
+type Props = {
   panel: PanelModel;
-}
+};
 
-interface ConnectedProps {
-  plugin?: PanelPlugin;
-  isVizPickerOpen: boolean;
-  isPanelOptionsVisible: boolean;
-}
-
-interface DispatchProps {
-  toggleVizPicker: typeof toggleVizPicker;
-  setPanelEditorUIState: typeof setPanelEditorUIState;
-}
-
-type Props = OwnProps & ConnectedProps & DispatchProps;
-
-export const VisualizationButtonUnconnected: FC<Props> = ({
-  plugin,
-  toggleVizPicker,
-  isPanelOptionsVisible,
-  isVizPickerOpen,
-  setPanelEditorUIState,
-}) => {
+export const VisualizationButton: FC<Props> = ({ panel }) => {
   const styles = useStyles(getStyles);
+  const dispatch = useDispatch();
+  const plugin = useSelector(getPanelPluginWithFallback(panel.type));
+  const isPanelOptionsVisible = useSelector((state: StoreState) => state.panelEditor.ui.isPanelOptionsVisible);
+  const isVizPickerOpen = useSelector((state: StoreState) => state.panelEditor.isVizPickerOpen);
 
   const onToggleOpen = () => {
-    toggleVizPicker(!isVizPickerOpen);
+    dispatch(toggleVizPicker(!isVizPickerOpen));
   };
 
   const onToggleOptionsPane = () => {
-    setPanelEditorUIState({ isPanelOptionsVisible: !isPanelOptionsVisible });
+    dispatch(setPanelEditorUIState({ isPanelOptionsVisible: !isPanelOptionsVisible }));
   };
 
   if (!plugin) {
@@ -71,7 +57,7 @@ export const VisualizationButtonUnconnected: FC<Props> = ({
   );
 };
 
-VisualizationButtonUnconnected.displayName = 'VisualizationTabUnconnected';
+VisualizationButton.displayName = 'VisualizationTab';
 
 const getStyles = (theme: GrafanaTheme) => {
   return {
@@ -84,20 +70,3 @@ const getStyles = (theme: GrafanaTheme) => {
     `,
   };
 };
-
-const mapStateToProps: MapStateToProps<ConnectedProps, OwnProps, StoreState> = (state, props) => {
-  return {
-    plugin: state.plugins.panels[props.panel.type],
-    isPanelOptionsVisible: state.panelEditor.ui.isPanelOptionsVisible,
-    isVizPickerOpen: state.panelEditor.isVizPickerOpen,
-  };
-};
-
-const mapDispatchToProps: MapDispatchToProps<DispatchProps, OwnProps> = {
-  toggleVizPicker,
-  setPanelEditorUIState,
-};
-
-export const VisualizationButton = connect(mapStateToProps, mapDispatchToProps, undefined, { forwardRef: true })(
-  VisualizationButtonUnconnected
-);

public/app/features/dashboard/components/PanelEditor/VisualizationSelectPane.tsx

@@ -3,7 +3,6 @@ import { css } from '@emotion/css';
 import { GrafanaTheme, PanelPluginMeta, SelectableValue } from '@grafana/data';
 import { Button, CustomScrollbar, Icon, Input, RadioButtonGroup, useStyles } from '@grafana/ui';
 import { changePanelPlugin } from '../../state/actions';
-import { StoreState } from 'app/types';
 import { PanelModel } from '../../state/PanelModel';
 import { useDispatch, useSelector } from 'react-redux';
 import { filterPluginList, getAllPanelPluginMeta, VizTypePicker } from '../VizTypePicker/VizTypePicker';
@@ -11,13 +10,14 @@ import { Field } from '@grafana/ui/src/components/Forms/Field';
 import { PanelLibraryOptionsGroup } from 'app/features/library-panels/components/PanelLibraryOptionsGroup/PanelLibraryOptionsGroup';
 import { toggleVizPicker } from './state/reducers';
 import { selectors } from '@grafana/e2e-selectors';
+import { getPanelPluginWithFallback } from '../../state/selectors';
 
 interface Props {
   panel: PanelModel;
 }
 
 export const VisualizationSelectPane: FC<Props> = ({ panel }) => {
-  const plugin = useSelector((state: StoreState) => state.plugins.panels[panel.type]);
+  const plugin = useSelector(getPanelPluginWithFallback(panel.type));
   const [searchQuery, setSearchQuery] = useState('');
   const [listMode, setListMode] = useState(ListMode.Visualizations);
   const dispatch = useDispatch();

public/app/features/dashboard/dashgrid/PanelPluginError.tsx

@@ -74,7 +74,7 @@ export function getPanelPluginNotFound(id: string, silent?: boolean): PanelPlugi
       links: [],
       logos: {
         large: '',
-        small: '',
+        small: 'public/img/grafana_icon.svg',
       },
       screenshots: [],
       updated: '',

public/app/features/dashboard/state/selectors.ts

@@ -1,4 +1,6 @@
-import { DashboardState, PanelState } from 'app/types';
+import { DashboardState, PanelState, StoreState } from 'app/types';
+import { PanelPlugin } from '@grafana/data';
+import { getPanelPluginNotFound } from '../dashgrid/PanelPluginError';
 
 export function getPanelStateById(state: DashboardState, panelId: number): PanelState {
   if (!panelId) {
@@ -7,3 +9,8 @@ export function getPanelStateById(state: DashboardState, panelId: number): Panel
 
   return state.panels[panelId] ?? ({} as PanelState);
 }
+
+export const getPanelPluginWithFallback = (panelType: string) => (state: StoreState): PanelPlugin => {
+  const plugin = state.plugins.panels[panelType];
+  return plugin || getPanelPluginNotFound(`Panel plugin not found (${panelType})`, true);
+};