Canvas: Merge tree view and layer element list UX (#52701)

Co-authored-by: nmarrs <nathanielmarrs@gmail.com>

.betterer.results

@@ -8630,15 +8630,12 @@ exports[`better eslint`] = {
       [0, 0, 0, "Unexpected any. Specify a different type.", "3"],
       [0, 0, 0, "Unexpected any. Specify a different type.", "4"]
     ],
-    "public/app/plugins/panel/canvas/editor/LayerElementListEditor.tsx:5381": [
-      [0, 0, 0, "Unexpected any. Specify a different type.", "0"],
-      [0, 0, 0, "Do not use any type assertions.", "1"]
-    ],
     "public/app/plugins/panel/canvas/editor/PlacementEditor.tsx:5381": [
       [0, 0, 0, "Unexpected any. Specify a different type.", "0"]
     ],
     "public/app/plugins/panel/canvas/editor/TreeNavigationEditor.tsx:5381": [
-      [0, 0, 0, "Unexpected any. Specify a different type.", "0"]
+      [0, 0, 0, "Unexpected any. Specify a different type.", "0"],
+      [0, 0, 0, "Do not use any type assertions.", "1"]
     ],
     "public/app/plugins/panel/canvas/editor/elementEditor.tsx:5381": [
       [0, 0, 0, "Unexpected any. Specify a different type.", "0"],

public/app/plugins/panel/canvas/InlineEditBody.tsx

@@ -15,7 +15,6 @@ import { setOptionImmutably } from 'app/features/dashboard/components/PanelEdito
 import { activePanelSubject, InstanceState } from './CanvasPanel';
 import { getElementEditor } from './editor/elementEditor';
 import { getLayerEditor } from './editor/layerEditor';
-import { getTreeViewEditor } from './editor/treeViewEditor';
 
 export const InlineEditBody = () => {
   const activePanel = useObservable(activePanelSubject);
@@ -30,7 +29,6 @@ export const InlineEditBody = () => {
     }
 
     const supplier = (builder: PanelOptionsEditorBuilder<any>, context: StandardEditorContext<any>) => {
-      builder.addNestedOptions(getTreeViewEditor(state));
       builder.addNestedOptions(getLayerEditor(instanceState));
 
       const selection = state.selected;

public/app/plugins/panel/canvas/editor/LayerElementListEditor.tsx

@@ -1,266 +0,0 @@
-import React, { PureComponent } from 'react';
-import { DropResult } from 'react-beautiful-dnd';
-
-import { SelectableValue, StandardEditorProps } from '@grafana/data';
-import { config } from '@grafana/runtime';
-import { Button, HorizontalGroup } from '@grafana/ui';
-import appEvents from 'app/core/app_events';
-import { AddLayerButton } from 'app/core/components/Layers/AddLayerButton';
-import { LayerDragDropList } from 'app/core/components/Layers/LayerDragDropList';
-import { CanvasElementOptions, canvasElementRegistry } from 'app/features/canvas';
-import { notFoundItem } from 'app/features/canvas/elements/notFound';
-import { ElementState } from 'app/features/canvas/runtime/element';
-import { FrameState } from 'app/features/canvas/runtime/frame';
-import { ShowConfirmModalEvent } from 'app/types/events';
-
-import { PanelOptions } from '../models.gen';
-import { LayerActionID } from '../types';
-import { doSelect } from '../utils';
-
-import { LayerEditorProps } from './layerEditor';
-
-type Props = StandardEditorProps<any, LayerEditorProps, PanelOptions>;
-
-export class LayerElementListEditor extends PureComponent<Props> {
-  getScene = () => {
-    const { settings } = this.props.item;
-    if (!settings?.layer) {
-      return;
-    }
-    return settings.layer.scene;
-  };
-
-  onAddItem = (sel: SelectableValue<string>) => {
-    const { settings } = this.props.item;
-    if (!settings?.layer) {
-      return;
-    }
-    const { layer } = settings;
-
-    const item = canvasElementRegistry.getIfExists(sel.value) ?? notFoundItem;
-    const newElementOptions = item.getNewOptions() as CanvasElementOptions;
-    newElementOptions.type = item.id;
-    const newElement = new ElementState(item, newElementOptions, layer);
-    newElement.updateData(layer.scene.context);
-    layer.elements.push(newElement);
-    layer.scene.save();
-
-    layer.reinitializeMoveable();
-  };
-
-  onSelect = (item: ElementState) => {
-    const { settings } = this.props.item;
-    if (settings?.scene) {
-      doSelect(settings.scene, item);
-    }
-  };
-
-  onClearSelection = () => {
-    const { settings } = this.props.item;
-
-    if (!settings?.layer) {
-      return;
-    }
-
-    const { layer } = settings;
-
-    layer.scene.clearCurrentSelection();
-  };
-
-  onDragEnd = (result: DropResult) => {
-    if (!result.destination) {
-      return;
-    }
-
-    const { settings } = this.props.item;
-    if (!settings?.layer) {
-      return;
-    }
-
-    const { layer } = settings;
-
-    const count = layer.elements.length - 1;
-    const src = (result.source.index - count) * -1;
-    const dst = (result.destination.index - count) * -1;
-
-    layer.reorder(src, dst);
-  };
-
-  goUpLayer = () => {
-    const settings = this.props.item.settings;
-
-    if (!settings?.layer || !settings?.scene) {
-      return;
-    }
-
-    const { scene, layer } = settings;
-
-    if (layer.parent) {
-      scene.updateCurrentLayer(layer.parent);
-    }
-  };
-
-  private decoupleFrame = () => {
-    const settings = this.props.item.settings;
-
-    if (!settings?.layer) {
-      return;
-    }
-
-    const { layer } = settings;
-
-    this.deleteFrame();
-    layer.elements.forEach((element: ElementState) => {
-      const elementContainer = element.div?.getBoundingClientRect();
-      element.setPlacementFromConstraint(elementContainer, layer.parent?.div?.getBoundingClientRect());
-      layer.parent?.doAction(LayerActionID.Duplicate, element, false, false);
-    });
-  };
-
-  private onDecoupleFrame = () => {
-    appEvents.publish(
-      new ShowConfirmModalEvent({
-        title: 'Decouple frame',
-        text: `Are you sure you want to decouple this frame?`,
-        text2: 'This will remove the frame and push nested elements in the next level up.',
-        confirmText: 'Yes',
-        yesText: 'Decouple',
-        onConfirm: async () => {
-          this.decoupleFrame();
-        },
-      })
-    );
-  };
-
-  private deleteFrame = () => {
-    const settings = this.props.item.settings;
-
-    if (!settings?.layer) {
-      return;
-    }
-
-    const { layer } = settings;
-
-    const scene = this.getScene();
-    scene?.byName.delete(layer.getName());
-    layer.elements.forEach((element) => scene?.byName.delete(element.getName()));
-    layer.parent?.doAction(LayerActionID.Delete, layer);
-
-    this.goUpLayer();
-  };
-
-  private onFrameSelection = () => {
-    const scene = this.getScene();
-    if (scene) {
-      scene.frameSelection();
-    } else {
-      console.warn('no scene!');
-    }
-  };
-
-  private onDeleteFrame = () => {
-    appEvents.publish(
-      new ShowConfirmModalEvent({
-        title: 'Delete frame',
-        text: `Are you sure you want to delete this frame?`,
-        text2: 'This will delete the frame and all nested elements.',
-        icon: 'trash-alt',
-        confirmText: 'Delete',
-        yesText: 'Delete',
-        onConfirm: async () => {
-          this.deleteFrame();
-        },
-      })
-    );
-  };
-
-  render() {
-    const settings = this.props.item.settings;
-    if (!settings) {
-      return <div>No settings</div>;
-    }
-    const layer = settings.layer;
-    if (!layer) {
-      return <div>Missing layer?</div>;
-    }
-
-    const onDelete = (element: ElementState) => {
-      layer.doAction(LayerActionID.Delete, element);
-    };
-
-    const onDuplicate = (element: ElementState) => {
-      layer.doAction(LayerActionID.Duplicate, element);
-    };
-
-    const getLayerInfo = (element: ElementState) => {
-      return element.options.type;
-    };
-
-    const onNameChange = (element: ElementState, name: string) => {
-      element.onChange({ ...element.options, name });
-    };
-
-    const showActions = (element: ElementState) => {
-      return !(element instanceof FrameState);
-    };
-
-    const verifyLayerNameUniqueness = (nameToVerify: string) => {
-      const scene = this.getScene();
-
-      return Boolean(scene?.canRename(nameToVerify));
-    };
-
-    const selection: string[] = settings.selected ? settings.selected.map((v) => v.getName()) : [];
-    return (
-      <>
-        {!layer.isRoot() && (
-          <>
-            <Button icon="angle-up" size="sm" variant="secondary" onClick={this.goUpLayer}>
-              Go up level
-            </Button>
-            <Button size="sm" variant="secondary" onClick={() => this.onSelect(layer)}>
-              Select frame
-            </Button>
-            <Button size="sm" variant="secondary" onClick={() => this.onDecoupleFrame()}>
-              Decouple frame
-            </Button>
-            <Button size="sm" variant="secondary" onClick={() => this.onDeleteFrame()}>
-              Delete frame
-            </Button>
-          </>
-        )}
-        <LayerDragDropList
-          onDragEnd={this.onDragEnd}
-          onSelect={this.onSelect}
-          onDelete={onDelete}
-          onDuplicate={onDuplicate}
-          getLayerInfo={getLayerInfo}
-          onNameChange={onNameChange}
-          verifyLayerNameUniqueness={verifyLayerNameUniqueness}
-          showActions={showActions}
-          layers={layer.elements}
-          selection={selection}
-        />
-        <br />
-
-        <HorizontalGroup>
-          <AddLayerButton
-            onChange={this.onAddItem}
-            options={canvasElementRegistry.selectOptions().options}
-            label={'Add item'}
-          />
-          {selection.length > 0 && (
-            <Button size="sm" variant="secondary" onClick={this.onClearSelection}>
-              Clear selection
-            </Button>
-          )}
-          {selection.length > 1 && config.featureToggles.canvasPanelNesting && (
-            <Button size="sm" variant="secondary" onClick={this.onFrameSelection}>
-              Frame selection
-            </Button>
-          )}
-        </HorizontalGroup>
-      </>
-    );
-  }
-}

public/app/plugins/panel/canvas/editor/TreeNavigationEditor.tsx

@@ -1,42 +1,65 @@
 import { Global } from '@emotion/react';
 import Tree from 'rc-tree';
-import React, { Key, useEffect, useState } from 'react';
+import React, { Key, useEffect, useMemo, useState } from 'react';
 import SVG from 'react-inlinesvg';
 
-import { StandardEditorProps } from '@grafana/data';
-import { useTheme2 } from '@grafana/ui';
+import { SelectableValue, StandardEditorProps } from '@grafana/data';
+import { config } from '@grafana/runtime';
+import { Button, HorizontalGroup, useTheme2 } from '@grafana/ui';
 import { ElementState } from 'app/features/canvas/runtime/element';
 
+import { AddLayerButton } from '../../../../core/components/Layers/AddLayerButton';
+import { CanvasElementOptions, canvasElementRegistry } from '../../../../features/canvas';
+import { notFoundItem } from '../../../../features/canvas/elements/notFound';
 import { getGlobalStyles } from '../globalStyles';
 import { PanelOptions } from '../models.gen';
-import { getTreeData, onNodeDrop } from '../tree';
+import { getTreeData, onNodeDrop, TreeElement } from '../tree';
 import { DragNode, DropNode } from '../types';
 import { doSelect } from '../utils';
 
-import { TreeViewEditorProps } from './treeViewEditor';
+import { TreeNodeTitle } from './TreeNodeTitle';
+import { TreeViewEditorProps } from './elementEditor';
+
+let allowSelection = true;
 
 export const TreeNavigationEditor = ({ item }: StandardEditorProps<any, TreeViewEditorProps, PanelOptions>) => {
   const [treeData, setTreeData] = useState(getTreeData(item?.settings?.scene.root));
   const [autoExpandParent, setAutoExpandParent] = useState(true);
   const [expandedKeys, setExpandedKeys] = useState<Key[]>([]);
+  const [selectedKeys, setSelectedKeys] = useState<Key[]>([]);
 
   const theme = useTheme2();
   const globalCSS = getGlobalStyles(theme);
-  const selectedBgColor = theme.colors.background.secondary;
+
+  const selectedBgColor = theme.v1.colors.formInputBorderActive;
   const { settings } = item;
+  const selection = useMemo(
+    () => (settings?.selected ? settings.selected.map((v) => v.getName()) : []),
+    [settings?.selected]
+  );
+
+  const selectionByUID = useMemo(
+    () => (settings?.selected ? settings.selected.map((v) => v.UID) : []),
+    [settings?.selected]
+  );
 
   useEffect(() => {
-    const selection: string[] = settings?.selected ? settings.selected.map((v) => v.getName()) : [];
-
     setTreeData(getTreeData(item?.settings?.scene.root, selection, selectedBgColor));
-  }, [item?.settings?.scene.root, selectedBgColor, settings?.selected]);
+    setSelectedKeys(selectionByUID);
+    setAllowSelection();
+  }, [item?.settings?.scene.root, selectedBgColor, selection, selectionByUID]);
 
   if (!settings) {
     return <div>No settings</div>;
   }
 
+  const layer = settings.layer;
+  if (!layer) {
+    return <div>Missing layer?</div>;
+  }
+
   const onSelect = (selectedKeys: Key[], info: { node: { dataRef: ElementState } }) => {
-    if (item.settings?.scene) {
+    if (allowSelection && item.settings?.scene) {
       doSelect(item.settings.scene, info.node.dataRef);
     }
   };
@@ -77,6 +100,39 @@ export const TreeNavigationEditor = ({ item }: StandardEditorProps<any, TreeView
     });
   };
 
+  const setAllowSelection = (allow = true) => {
+    allowSelection = allow;
+  };
+
+  const onAddItem = (sel: SelectableValue<string>) => {
+    const newItem = canvasElementRegistry.getIfExists(sel.value) ?? notFoundItem;
+    const newElementOptions = newItem.getNewOptions() as CanvasElementOptions;
+    newElementOptions.type = newItem.id;
+    const newElement = new ElementState(newItem, newElementOptions, layer);
+    newElement.updateData(layer.scene.context);
+    layer.elements.push(newElement);
+    layer.scene.save();
+
+    layer.reinitializeMoveable();
+  };
+
+  const onClearSelection = () => {
+    layer.scene.clearCurrentSelection();
+  };
+
+  const onTitleRender = (nodeData: TreeElement) => {
+    return <TreeNodeTitle nodeData={nodeData} setAllowSelection={setAllowSelection} settings={settings} />;
+  };
+
+  // TODO: This functionality is currently kinda broken / no way to decouple / delete created frames at this time
+  const onFrameSelection = () => {
+    if (layer.scene) {
+      layer.scene.frameSelection();
+    } else {
+      console.warn('no scene!');
+    }
+  };
+
   return (
     <>
       <Global styles={globalCSS} />
@@ -92,8 +148,31 @@ export const TreeNavigationEditor = ({ item }: StandardEditorProps<any, TreeView
         expandedKeys={expandedKeys}
         onExpand={onExpand}
         treeData={treeData}
+        titleRender={onTitleRender}
         switcherIcon={switcherIcon}
+        selectedKeys={selectedKeys}
+        multiple={true}
       />
+
+      <HorizontalGroup>
+        <div style={{ marginLeft: '18px' }}>
+          <AddLayerButton
+            onChange={onAddItem}
+            options={canvasElementRegistry.selectOptions().options}
+            label={'Add item'}
+          />
+        </div>
+        {selection.length > 0 && (
+          <Button size="sm" variant="secondary" onClick={onClearSelection}>
+            Clear selection
+          </Button>
+        )}
+        {selection.length > 1 && config.featureToggles.canvasPanelNesting && (
+          <Button size="sm" variant="secondary" onClick={onFrameSelection}>
+            Frame selection
+          </Button>
+        )}
+      </HorizontalGroup>
     </>
   );
 };

public/app/plugins/panel/canvas/editor/TreeNodeTitle.tsx

@@ -0,0 +1,118 @@
+import { css } from '@emotion/css';
+import React from 'react';
+
+import { GrafanaTheme2 } from '@grafana/data';
+import { IconButton, useStyles2 } from '@grafana/ui';
+import { ElementState } from 'app/features/canvas/runtime/element';
+
+import { LayerName } from '../../../../core/components/Layers/LayerName';
+import { TreeElement } from '../tree';
+import { LayerActionID } from '../types';
+
+import { TreeViewEditorProps } from './elementEditor';
+
+interface Props {
+  settings: TreeViewEditorProps;
+  nodeData: TreeElement;
+  setAllowSelection: (allow: boolean) => void;
+}
+
+export const TreeNodeTitle = ({ settings, nodeData, setAllowSelection }: Props) => {
+  const element = nodeData.dataRef;
+  const name = nodeData.dataRef.getName();
+
+  const styles = useStyles2(getStyles);
+
+  const layer = settings.layer;
+
+  const getScene = () => {
+    if (!settings?.layer) {
+      return;
+    }
+
+    return settings.layer.scene;
+  };
+
+  const onDelete = (element: ElementState) => {
+    const elLayer = element.parent ?? layer;
+    elLayer.doAction(LayerActionID.Delete, element);
+    setAllowSelection(false);
+  };
+
+  const onDuplicate = (element: ElementState) => {
+    const elLayer = element.parent ?? layer;
+    elLayer.doAction(LayerActionID.Duplicate, element);
+    setAllowSelection(false);
+  };
+
+  const onNameChange = (element: ElementState, name: string) => {
+    element.onChange({ ...element.options, name });
+  };
+
+  const verifyLayerNameUniqueness = (nameToVerify: string) => {
+    const scene = getScene();
+
+    return Boolean(scene?.canRename(nameToVerify));
+  };
+
+  const getLayerInfo = (element: ElementState) => {
+    return element.options.type;
+  };
+
+  return (
+    <>
+      <LayerName
+        name={name}
+        onChange={(v) => onNameChange(element, v)}
+        verifyLayerNameUniqueness={verifyLayerNameUniqueness ?? undefined}
+      />
+
+      <div className={styles.textWrapper}>&nbsp; {getLayerInfo(element)}</div>
+
+      {!nodeData.children && (
+        <div className={styles.actionButtonsWrapper}>
+          <IconButton
+            name="copy"
+            title={'Duplicate'}
+            className={styles.actionIcon}
+            onClick={() => onDuplicate(element)}
+          />
+          <IconButton
+            name="trash-alt"
+            title={'remove'}
+            className={styles.actionIcon}
+            onClick={() => onDelete(element)}
+          />
+        </div>
+      )}
+    </>
+  );
+};
+
+const getStyles = (theme: GrafanaTheme2) => ({
+  actionButtonsWrapper: css`
+    display: flex;
+    align-items: flex-end;
+  `,
+  actionIcon: css`
+    color: ${theme.colors.text.secondary};
+    cursor: pointer;
+    &:hover {
+      color: ${theme.colors.text.primary};
+    }
+  `,
+  textWrapper: css`
+    display: flex;
+    align-items: center;
+    flex-grow: 1;
+    overflow: hidden;
+    margin-right: ${theme.v1.spacing.sm};
+  `,
+  layerName: css`
+    font-weight: ${theme.v1.typography.weight.semibold};
+    color: ${theme.v1.colors.textBlue};
+    cursor: pointer;
+    overflow: hidden;
+    margin-left: ${theme.v1.spacing.xs};
+  `,
+});

public/app/plugins/panel/canvas/editor/elementEditor.tsx

@@ -6,6 +6,8 @@ import { ElementState } from 'app/features/canvas/runtime/element';
 import { Scene } from 'app/features/canvas/runtime/scene';
 import { setOptionImmutably } from 'app/features/dashboard/components/PanelEditor/utils';
 
+import { FrameState } from '../../../../features/canvas/runtime/frame';
+
 import { PlacementEditor } from './PlacementEditor';
 import { optionBuilder } from './options';
 
@@ -15,6 +17,12 @@ export interface CanvasEditorOptions {
   category?: string[];
 }
 
+export interface TreeViewEditorProps {
+  scene: Scene;
+  layer: FrameState;
+  selected: ElementState[];
+}
+
 export function getElementEditor(opts: CanvasEditorOptions): NestedPanelOptions<CanvasElementOptions> {
   return {
     category: opts.category,

public/app/plugins/panel/canvas/editor/layerEditor.tsx

@@ -8,8 +8,8 @@ import { setOptionImmutably } from 'app/features/dashboard/components/PanelEdito
 
 import { InstanceState } from '../CanvasPanel';
 
-import { LayerElementListEditor } from './LayerElementListEditor';
 import { PlacementEditor } from './PlacementEditor';
+import { TreeNavigationEditor } from './TreeNavigationEditor';
 import { optionBuilder } from './options';
 
 export interface LayerEditorProps {
@@ -72,7 +72,7 @@ export function getLayerEditor(opts: InstanceState): NestedPanelOptions<LayerEdi
         id: 'content',
         path: 'root',
         name: 'Elements',
-        editor: LayerElementListEditor,
+        editor: TreeNavigationEditor,
         settings: { scene, layer: scene.currentLayer, selected },
       });
 

public/app/plugins/panel/canvas/editor/treeViewEditor.tsx

@@ -1,47 +0,0 @@
-import { NestedPanelOptions } from '@grafana/data/src/utils/OptionsUIBuilders';
-import { ElementState } from 'app/features/canvas/runtime/element';
-import { FrameState } from 'app/features/canvas/runtime/frame';
-import { Scene } from 'app/features/canvas/runtime/scene';
-
-import { InstanceState } from '../CanvasPanel';
-
-import { TreeNavigationEditor } from './TreeNavigationEditor';
-
-export interface TreeViewEditorProps {
-  scene: Scene;
-  layer: FrameState;
-  selected: ElementState[];
-}
-
-export function getTreeViewEditor(opts: InstanceState): NestedPanelOptions<TreeViewEditorProps> {
-  const { selected, scene } = opts;
-
-  if (selected) {
-    for (const element of selected) {
-      if (element instanceof FrameState) {
-        scene.currentLayer = element;
-        break;
-      }
-
-      if (element.parent) {
-        scene.currentLayer = element.parent;
-        break;
-      }
-    }
-  }
-
-  return {
-    category: ['Tree View'],
-    path: '--',
-    build: (builder, context) => {
-      builder.addCustomEditor({
-        category: [],
-        id: 'treeView',
-        path: '__', // not used
-        name: '',
-        editor: TreeNavigationEditor,
-        settings: { scene, layer: scene.currentLayer, selected },
-      });
-    },
-  };
-}

public/app/plugins/panel/canvas/globalStyles.ts

@@ -10,19 +10,32 @@ export function getGlobalStyles(theme: GrafanaTheme2) {
     ,
     .rc-tree {
       margin: 0;
+      margin-bottom: 15px;
       border: 1px solid transparent;
 
       &-focused:not(&-active-focused) {
         border-color: cyan;
       }
 
+      .rc-tree-title {
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+        width: 100%;
+      }
+
       .rc-tree-treenode {
         margin: 0;
-        padding: 5px;
+        padding: 1px;
         line-height: 24px;
         white-space: nowrap;
         list-style: none;
         outline: 0;
+
+        display: flex;
+        margin-bottom: 3px;
+        cursor: pointer;
+
         .draggable {
           color: #333;
           -moz-user-select: none;
@@ -34,14 +47,6 @@ export function getGlobalStyles(theme: GrafanaTheme2) {
           // -webkit-user-drag: element;
         }
 
-        &:hover {
-          background-color: ${theme.colors.background.secondary};
-        }
-
-        &.dragging {
-          background: rgba(100, 100, 255, 0.1);
-        }
-
         &.drop-container {
           > .draggable::after {
             position: absolute;
@@ -49,15 +54,14 @@ export function getGlobalStyles(theme: GrafanaTheme2) {
             right: 0;
             bottom: 0;
             left: 0;
-            box-shadow: inset 0 0 0 2px red;
+            box-shadow: inset 0 0 0 2px blue;
             content: '';
           }
           & ~ .rc-tree-treenode {
-            border-left: 2px solid chocolate;
+            border-left: 2px solid ${theme.v1.colors.formInputBorder};
           }
         }
         &.drop-target {
-          border: 1px solid ${theme.colors.border.strong};
           & ~ .rc-tree-treenode {
             border-left: none;
           }
@@ -80,10 +84,26 @@ export function getGlobalStyles(theme: GrafanaTheme2) {
           padding: 0;
           text-decoration: none;
           vertical-align: top;
-          cursor: pointer;
+          cursor: grab;
+          flex-grow: 1;
+          display: flex;
+
+          border: 1px solid ${theme.v1.colors.formInputBorder};
+          border-radius: ${theme.v1.border.radius.sm};
+          background: ${theme.v1.colors.bg2};
+          min-height: ${theme.v1.spacing.formInputHeight}px;
+
+          &:hover {
+            border: 1px solid ${theme.v1.colors.formInputBorderHover};
+          }
+
+          &.rc-tree-node-selected {
+            border: 1px solid ${theme.v1.colors.formInputBorderActive};
+            opacity: 1;
+          }
         }
+
         span {
-          &.rc-tree-switcher,
           &.rc-tree-checkbox,
           &.rc-tree-iconEle {
             display: inline-block;
@@ -103,6 +123,21 @@ export function getGlobalStyles(theme: GrafanaTheme2) {
               background-image: none;
             }
           }
+          &.rc-tree-switcher {
+            display: flex;
+            align-items: center;
+            width: 16px;
+            background-color: transparent;
+            background-repeat: no-repeat;
+            background-attachment: scroll;
+            border: 0 none;
+            outline: none;
+            cursor: pointer;
+
+            &.rc-tree-icon__customize {
+              background-image: none;
+            }
+          }
           &.rc-tree-icon_loading {
             margin-right: 2px;
             vertical-align: top;

public/app/plugins/panel/canvas/module.tsx

@@ -4,7 +4,6 @@ import { FrameState } from 'app/features/canvas/runtime/frame';
 import { CanvasPanel, InstanceState } from './CanvasPanel';
 import { getElementEditor } from './editor/elementEditor';
 import { getLayerEditor } from './editor/layerEditor';
-import { getTreeViewEditor } from './editor/treeViewEditor';
 import { PanelOptions } from './models.gen';
 
 export const plugin = new PanelPlugin<PanelOptions>(CanvasPanel)
@@ -21,7 +20,6 @@ export const plugin = new PanelPlugin<PanelOptions>(CanvasPanel)
     });
 
     if (state) {
-      builder.addNestedOptions(getTreeViewEditor(state));
       builder.addNestedOptions(getLayerEditor(state));
 
       const selection = state.selected;

public/app/plugins/panel/canvas/tree.ts

@@ -27,18 +27,8 @@ export function getTreeData(root?: RootElement | FrameState, selection?: string[
         dataRef: item,
       };
 
-      const isSelected = isItemSelected(item, selection);
-      if (isSelected) {
-        element.style = { backgroundColor: selectedColor };
-      }
-
       if (item instanceof FrameState) {
         element.children = getTreeData(item, selection, selectedColor);
-        if (isSelected) {
-          element.children.map((child) => {
-            child.style = { backgroundColor: selectedColor };
-          });
-        }
       }
       elements.push(element);
     }
@@ -47,10 +37,6 @@ export function getTreeData(root?: RootElement | FrameState, selection?: string[
   return elements;
 }
 
-function isItemSelected(item: ElementState, selection: string[] | undefined) {
-  return Boolean(selection?.includes(item.getName()));
-}
-
 export function onNodeDrop(
   info: { node: DropNode; dragNode: DragNode; dropPosition: number; dropToGap: boolean },
   treeData: TreeElement[]