Show hovered prop from sequence editor in details panel

* Remove an un-needed prism

Co-authored-by: Cole Lawrence <cole@colelawrence.com>
Co-authored-by: Aria Minaei <aria.minaei@gmail.com>

theatre/studio/src/panels/DetailPanel/DeterminePropEditorForDetail/DetailCompoundPropEditor.tsx

@@ -5,9 +5,9 @@ import {getPointerParts} from '@theatre/dataverse'
 import type {Pointer} from '@theatre/dataverse'
 import last from 'lodash-es/last'
 import {darken, transparentize} from 'polished'
-import React from 'react'
+import React, {useMemo} from 'react'
 import styled from 'styled-components'
-import {indentationFormula} from '@theatre/studio/panels/DetailPanel/DeterminePropEditorForDetail/SingleRowPropEditor'
+import {rowIndentationFormulaCSS} from '@theatre/studio/panels/DetailPanel/DeterminePropEditorForDetail/rowIndentationFormulaCSS'
 import {propNameTextCSS} from '@theatre/studio/propEditors/utils/propNameTextCSS'
 import {pointerEventsAutoInNormalMode} from '@theatre/studio/css'
 import useRefAndState from '@theatre/studio/utils/useRefAndState'
@@ -16,6 +16,10 @@ import type SheetObject from '@theatre/core/sheetObjects/SheetObject'
 
 import useContextMenu from '@theatre/studio/uiComponents/simpleContextMenu/useContextMenu'
 import {useEditingToolsForCompoundProp} from '@theatre/studio/propEditors/useEditingToolsForCompoundProp'
+import type {PropHighlighted} from '@theatre/studio/panels/SequenceEditorPanel/whatPropIsHighlighted'
+import {whatPropIsHighlighted} from '@theatre/studio/panels/SequenceEditorPanel/whatPropIsHighlighted'
+import {deriver} from '@theatre/studio/utils/derive-utils'
+import {getDetailRowHighlightBackground} from './getDetailRowHighlightBackground'
 
 const Container = styled.div`
   --step: 15px;
@@ -23,15 +27,17 @@ const Container = styled.div`
   ${pointerEventsAutoInNormalMode};
 `
 
-const Header = styled.div`
+const Header = deriver(styled.div<{isHighlighted: PropHighlighted}>`
   height: 30px;
   display: flex;
   align-items: stretch;
   position: relative;
-`
+
+  background-color: ${getDetailRowHighlightBackground};
+`)
 
 const Padding = styled.div`
-  padding-left: ${indentationFormula};
+  padding-left: ${rowIndentationFormulaCSS};
   display: flex;
   align-items: center;
 `
@@ -99,12 +105,22 @@ function DetailCompoundPropEditor<
 
   const lastSubPropIsComposite = compositeSubs.length > 0
 
+  const isPropHighlightedD = useMemo(
+    () =>
+      whatPropIsHighlighted.getIsPropHighlightedD({
+        ...obj.address,
+        pathToProp: getPointerParts(pointerToProp).path,
+      }),
+    [pointerToProp],
+  )
+
   // previous versions of the DetailCompoundPropEditor had a context menu item for "Reset values".
 
   return (
     <Container>
       {contextMenu}
       <Header
+        isHighlighted={isPropHighlightedD}
         // @ts-ignore
         style={{'--depth': visualIndentation - 1}}
       >
@@ -138,4 +154,4 @@ function DetailCompoundPropEditor<
   )
 }
 
-export default DetailCompoundPropEditor
+export default React.memo(DetailCompoundPropEditor)

theatre/studio/src/panels/DetailPanel/DeterminePropEditorForDetail/DetailSimplePropEditor.tsx

@@ -2,12 +2,14 @@ import type {
   IBasePropType,
   PropTypeConfig_AllSimples,
 } from '@theatre/core/propTypes'
-import React from 'react'
+import React, {useMemo} from 'react'
 import {useEditingToolsForSimplePropInDetailsPanel} from '@theatre/studio/propEditors/useEditingToolsForSimpleProp'
 import {SingleRowPropEditor} from '@theatre/studio/panels/DetailPanel/DeterminePropEditorForDetail/SingleRowPropEditor'
 import type {Pointer} from '@theatre/dataverse'
+import {getPointerParts} from '@theatre/dataverse'
 import type SheetObject from '@theatre/core/sheetObjects/SheetObject'
 import type {ISimplePropEditorReactProps} from '@theatre/studio/propEditors/simpleEditors/ISimplePropEditorReactProps'
+import {whatPropIsHighlighted} from '@theatre/studio/panels/SequenceEditorPanel/whatPropIsHighlighted'
 
 export type IDetailSimplePropEditorProps<
   TPropTypeConfig extends IBasePropType<string, any>,
@@ -37,9 +39,23 @@ function DetailSimplePropEditor<
     propConfig,
   )
 
+  const isPropHighlightedD = useMemo(
+    () =>
+      whatPropIsHighlighted.getIsPropHighlightedD({
+        ...obj.address,
+        pathToProp: getPointerParts(pointerToProp).path,
+      }),
+    [pointerToProp],
+  )
+
   return (
     <SingleRowPropEditor
-      {...{editingTools: editingTools, propConfig, pointerToProp}}
+      {...{
+        editingTools: editingTools,
+        propConfig,
+        pointerToProp,
+        isPropHighlightedD,
+      }}
     >
       <EditorComponent
         editingTools={editingTools}
@@ -50,4 +66,4 @@ function DetailSimplePropEditor<
   )
 }
 
-export default DetailSimplePropEditor
+export default React.memo(DetailSimplePropEditor)

theatre/studio/src/panels/DetailPanel/DeterminePropEditorForDetail/SingleRowPropEditor.tsx

@@ -1,6 +1,6 @@
 import type * as propTypes from '@theatre/core/propTypes'
 import {getPointerParts} from '@theatre/dataverse'
-import type {Pointer} from '@theatre/dataverse'
+import type {Pointer, IDerivation} from '@theatre/dataverse'
 import useContextMenu from '@theatre/studio/uiComponents/simpleContextMenu/useContextMenu'
 import useRefAndState from '@theatre/studio/utils/useRefAndState'
 import {last} from 'lodash-es'
@@ -9,10 +9,14 @@ import type {useEditingToolsForSimplePropInDetailsPanel} from '@theatre/studio/p
 import styled from 'styled-components'
 import {pointerEventsAutoInNormalMode} from '@theatre/studio/css'
 import {propNameTextCSS} from '@theatre/studio/propEditors/utils/propNameTextCSS'
+import type {PropHighlighted} from '@theatre/studio/panels/SequenceEditorPanel/whatPropIsHighlighted'
+import {deriver} from '@theatre/studio/utils/derive-utils'
+import {rowIndentationFormulaCSS} from './rowIndentationFormulaCSS'
+import {getDetailRowHighlightBackground} from './getDetailRowHighlightBackground'
 
-export const indentationFormula = `calc(var(--left-pad) + var(--depth) * var(--step))`
-
-const Container = styled.div`
+const Container = deriver(styled.div<{
+  isHighlighted: PropHighlighted
+}>`
   display: flex;
   height: 30px;
   justify-content: flex-start;
@@ -28,11 +32,13 @@ const Container = styled.div`
   --right-width: 60%;
   position: relative;
   ${pointerEventsAutoInNormalMode};
-`
+
+  background-color: ${getDetailRowHighlightBackground};
+`)
 
 const Left = styled.div`
   box-sizing: border-box;
-  padding-left: ${indentationFormula};
+  padding-left: ${rowIndentationFormulaCSS};
   padding-right: 4px;
   display: flex;
   flex-direction: row;
@@ -84,6 +90,7 @@ type ISingleRowPropEditorProps<T> = {
   propConfig: propTypes.PropTypeConfig
   pointerToProp: Pointer<T>
   editingTools: ReturnType<typeof useEditingToolsForSimplePropInDetailsPanel>
+  isPropHighlightedD: IDerivation<PropHighlighted>
 }
 
 export function SingleRowPropEditor<T>({
@@ -91,6 +98,7 @@ export function SingleRowPropEditor<T>({
   pointerToProp,
   editingTools,
   children,
+  isPropHighlightedD,
 }: React.PropsWithChildren<ISingleRowPropEditorProps<T>>): React.ReactElement<
   any,
   any
@@ -105,11 +113,10 @@ export function SingleRowPropEditor<T>({
   })
 
   return (
-    <Container>
+    <Container isHighlighted={isPropHighlightedD}>
       {contextMenu}
       <Left>
         <ControlsContainer>{editingTools.controlIndicators}</ControlsContainer>
-
         <PropNameContainer
           ref={propNameContainerRef}
           title={['obj', 'props', ...getPointerParts(pointerToProp).path].join(

theatre/studio/src/panels/DetailPanel/DeterminePropEditorForDetail/getDetailRowHighlightBackground.tsx

@@ -0,0 +1,13 @@
+import type {PropHighlighted} from '@theatre/studio/panels/SequenceEditorPanel/whatPropIsHighlighted'
+
+export function getDetailRowHighlightBackground({
+  isHighlighted,
+}: {
+  isHighlighted: PropHighlighted
+}): string {
+  return isHighlighted === 'self'
+    ? '#1857a4'
+    : isHighlighted === 'descendent'
+    ? '#0a2f5c'
+    : 'initial'
+}

theatre/studio/src/panels/DetailPanel/DeterminePropEditorForDetail/rowIndentationFormulaCSS.tsx

@@ -0,0 +1 @@
+export const rowIndentationFormulaCSS = `calc(var(--left-pad) + var(--depth) * var(--step))`

theatre/studio/src/panels/SequenceEditorPanel/DopeSheet/Left/AnyCompositeRow.tsx

@@ -1,10 +1,15 @@
 import {theme} from '@theatre/studio/css'
-import type {SequenceEditorTree_Row} from '@theatre/studio/panels/SequenceEditorPanel/layout/tree'
+import type {
+  SequenceEditorTree_PrimitiveProp,
+  SequenceEditorTree_PropWithChildren,
+  SequenceEditorTree_SheetObject,
+} from '@theatre/studio/panels/SequenceEditorPanel/layout/tree'
 import type {VoidFn} from '@theatre/shared/utils/types'
-import React from 'react'
+import React, {useRef} from 'react'
 import {HiOutlineChevronRight} from 'react-icons/all'
 import styled from 'styled-components'
 import {propNameTextCSS} from '@theatre/studio/propEditors/utils/propNameTextCSS'
+import {usePropHighlightMouseEnter} from './usePropHighlightMouseEnter'
 
 export const LeftRowContainer = styled.li<{depth: number}>`
   --depth: ${(props) => props.depth};
@@ -66,7 +71,10 @@ const LeftRowChildren = styled.ul`
 `
 
 const AnyCompositeRow: React.FC<{
-  leaf: SequenceEditorTree_Row<string>
+  leaf:
+    | SequenceEditorTree_PrimitiveProp
+    | SequenceEditorTree_PropWithChildren
+    | SequenceEditorTree_SheetObject
   label: React.ReactNode
   toggleSelect?: VoidFn
   toggleCollapsed: VoidFn
@@ -85,8 +93,12 @@ const AnyCompositeRow: React.FC<{
 }) => {
   const hasChildren = Array.isArray(children) && children.length > 0
 
+  const containerRef = useRef<HTMLLIElement | null>(null)
+
+  usePropHighlightMouseEnter(containerRef.current, leaf)
+
   return leaf.shouldRender ? (
-    <LeftRowContainer depth={leaf.depth}>
+    <LeftRowContainer depth={leaf.depth} ref={containerRef}>
       <LeftRowHeader
         style={{
           height: leaf.nodeHeight + 'px',

theatre/studio/src/panels/SequenceEditorPanel/DopeSheet/Left/PrimitivePropRow.tsx

@@ -13,6 +13,7 @@ import {nextPrevCursorsTheme} from '@theatre/studio/propEditors/NextPrevKeyframe
 import {graphEditorColors} from '@theatre/studio/panels/SequenceEditorPanel/GraphEditor/GraphEditor'
 import {BaseHeader, LeftRowContainer as BaseContainer} from './AnyCompositeRow'
 import {propNameTextCSS} from '@theatre/studio/propEditors/utils/propNameTextCSS'
+import {usePropHighlightMouseEnter} from './usePropHighlightMouseEnter'
 
 const theme = {
   label: {
@@ -131,8 +132,12 @@ const PrimitivePropRow: React.FC<{
   const label = leaf.pathToProp[leaf.pathToProp.length - 1]
   const isSelectable = true
 
+  const containerRef = useRef<HTMLLIElement | null>(null)
+
+  usePropHighlightMouseEnter(containerRef.current, leaf)
+
   return (
-    <PrimitivePropRowContainer depth={leaf.depth}>
+    <PrimitivePropRowContainer depth={leaf.depth} ref={containerRef}>
       <PrimitivePropRowHead
         isEven={leaf.n % 2 === 0}
         style={{

theatre/studio/src/panels/SequenceEditorPanel/DopeSheet/Left/PropWithChildrenRow.tsx

@@ -2,7 +2,6 @@ import type {
   SequenceEditorTree_PrimitiveProp,
   SequenceEditorTree_PropWithChildren,
 } from '@theatre/studio/panels/SequenceEditorPanel/layout/tree'
-import {usePrism} from '@theatre/react'
 import React from 'react'
 import AnyCompositeRow from './AnyCompositeRow'
 import PrimitivePropRow from './PrimitivePropRow'
@@ -26,20 +25,18 @@ export const decideRowByPropType = (
 const PropWithChildrenRow: React.VFC<{
   leaf: SequenceEditorTree_PropWithChildren
 }> = ({leaf}) => {
-  return usePrism(() => {
-    return (
-      <AnyCompositeRow
-        leaf={leaf}
-        label={leaf.pathToProp[leaf.pathToProp.length - 1]}
-        isCollapsed={leaf.isCollapsed}
-        toggleCollapsed={() =>
-          setCollapsedSheetObjectOrCompoundProp(!leaf.isCollapsed, leaf)
-        }
-      >
-        {leaf.children.map((propLeaf) => decideRowByPropType(propLeaf))}
-      </AnyCompositeRow>
-    )
-  }, [leaf])
+  return (
+    <AnyCompositeRow
+      leaf={leaf}
+      label={leaf.pathToProp[leaf.pathToProp.length - 1]}
+      isCollapsed={leaf.isCollapsed}
+      toggleCollapsed={() =>
+        setCollapsedSheetObjectOrCompoundProp(!leaf.isCollapsed, leaf)
+      }
+    >
+      {leaf.children.map((propLeaf) => decideRowByPropType(propLeaf))}
+    </AnyCompositeRow>
+  )
 }
 
 export default PropWithChildrenRow

theatre/studio/src/panels/SequenceEditorPanel/DopeSheet/Left/usePropHighlightMouseEnter.tsx

@@ -0,0 +1,40 @@
+import type {SequenceEditorTree_AllRowTypes} from '@theatre/studio/panels/SequenceEditorPanel/layout/tree'
+import type {PropAddress} from '@theatre/shared/utils/addresses'
+import {useLayoutEffect} from 'react'
+import {whatPropIsHighlighted} from '@theatre/studio/panels/SequenceEditorPanel/whatPropIsHighlighted'
+
+/** This should ignore if  */
+export function usePropHighlightMouseEnter(
+  node: HTMLElement | null,
+  leaf: SequenceEditorTree_AllRowTypes,
+) {
+  useLayoutEffect(() => {
+    if (!node) return
+    if (leaf.type !== 'propWithChildren' && leaf.type !== 'primitiveProp')
+      return
+
+    let unlock: null | (() => void) = null
+    const propAddress: PropAddress = {
+      ...leaf.sheetObject.address,
+      pathToProp: leaf.pathToProp,
+    }
+
+    function onMouseEnter() {
+      unlock = whatPropIsHighlighted.replaceLock(propAddress, () => {
+        // cleanup on forced unlock
+      })
+    }
+    function onMouseLeave() {
+      unlock?.()
+    }
+
+    node.addEventListener('mouseenter', onMouseEnter)
+    node.addEventListener('mouseleave', onMouseLeave)
+
+    return () => {
+      unlock?.()
+      node.removeEventListener('mouseenter', onMouseEnter)
+      node.removeEventListener('mouseleave', onMouseLeave)
+    }
+  }, [node])
+}

theatre/studio/src/panels/SequenceEditorPanel/whatPropIsHighlighted.ts

@@ -0,0 +1,96 @@
+import type {IDerivation} from '@theatre/dataverse'
+import {val} from '@theatre/dataverse'
+import {Atom} from '@theatre/dataverse'
+import {prism} from '@theatre/dataverse'
+import type {
+  PropAddress,
+  WithoutSheetInstance,
+} from '@theatre/shared/utils/addresses'
+
+import pointerDeep from '@theatre/shared/utils/pointerDeep'
+import type {$IntentionalAny, VoidFn} from '@theatre/shared/utils/types'
+import lodashSet from 'lodash-es/set'
+
+/** constant global manager */
+export const whatPropIsHighlighted = createWhatPropIsHighlightedState()
+
+export type PropHighlighted = 'self' | 'descendent' | null
+
+/** Only used in prop highlighting with boolean. */
+type PathToPropAsDeepObject<T extends boolean | number | string> = {
+  [key in string]: T | PathToPropAsDeepObject<T>
+}
+
+function createWhatPropIsHighlightedState() {
+  let lastLockId = 0
+  const whatIsHighlighted = new Atom<
+    | {hasLock: false; deepPath?: undefined}
+    | {
+        hasLock: true
+        lockId: number
+        cleanup: () => void
+        deepPath: PathToPropAsDeepObject<boolean>
+      }
+  >({hasLock: false})
+
+  return {
+    replaceLock(address: WithoutSheetInstance<PropAddress>, cleanup: VoidFn) {
+      const lockId = lastLockId++
+
+      const existingState = whatIsHighlighted.getState()
+      if (existingState.hasLock) existingState.cleanup()
+
+      whatIsHighlighted.setState({
+        hasLock: true,
+        lockId,
+        cleanup,
+        deepPath: arrayToDeepObject(addressToArray(address)),
+      })
+
+      return function unlock() {
+        const curr = whatIsHighlighted.getState()
+        if (curr.hasLock && curr.lockId === lockId) {
+          curr.cleanup()
+          whatIsHighlighted.setState({hasLock: false})
+        }
+      }
+    },
+    getIsPropHighlightedD(
+      address: WithoutSheetInstance<PropAddress>,
+    ): IDerivation<PropHighlighted> {
+      const highlightedP = pointerDeep(
+        whatIsHighlighted.pointer.deepPath,
+        addressToArray(address),
+      )
+      return prism(() => {
+        const value = val(highlightedP)
+        return value === true
+          ? 'self'
+          : // obj continues deep path prop from here
+          value
+          ? 'descendent'
+          : // some other prop or no lock
+            null
+      })
+    },
+  }
+}
+
+function addressToArray(
+  address: WithoutSheetInstance<PropAddress>,
+): Array<string | number> {
+  return [
+    address.projectId,
+    address.sheetId,
+    address.objectKey,
+    ...address.pathToProp,
+  ]
+}
+
+function arrayToDeepObject(
+  arr: Array<string | number>,
+): PathToPropAsDeepObject<boolean> {
+  const obj = {}
+  lodashSet(obj, arr, true)
+  return obj as $IntentionalAny
+}