2D wire frame highlight from tree, select from wireframe

Summary:
Introduced some basic bidirectional link between tree and wireframe, the specific interaction will need some tweaking but this should get us started.

When hovering over the tree we halt the rendering of the wireframe up to that point, this allows us to explore parent views that layout child views.

When clicking a view in the wireframe it is 'seleceted' as if it was clicked in the tree. This set the tree selection so you can identify it in the tree as well as opens the side bar

Reviewed By: lblasa

Differential Revision: D39539277

fbshipit-source-id: 3beb1ad4cb56b398c640ac3e7fac2cc97f3f1a18

desktop/plugins/public/ui-debugger/components/Visualization2D.tsx

@@ -9,48 +9,52 @@
 
 import React from 'react';
 import {Bounds, Id, Tag, UINode} from '../types';
-import {styled, Layout} from 'flipper-plugin';
+import {styled, Layout, theme} from 'flipper-plugin';
 import {Typography} from 'antd';
 
 export const Visualization2D: React.FC<
-  {root: Id; nodes: Map<Id, UINode>} & React.HTMLAttributes<HTMLDivElement>
-> = ({root, nodes}) => {
-  //
-  const bounds = nodes.get(root)?.bounds;
-  const rootBorderStyle = bounds
-    ? {
-        borderWidth: '3px',
-        margin: '-3px',
-        borderStyle: 'solid',
-        borderColor: 'black',
-        width: bounds.width / 2,
-        height: bounds.height / 2,
-      }
-    : {};
+  {
+    root: Id;
+    nodes: Map<Id, UINode>;
+    hoveredNode?: Id;
+    onSelectNode: (id: Id) => void;
+  } & React.HTMLAttributes<HTMLDivElement>
+> = ({root, nodes, hoveredNode, onSelectNode}) => {
   return (
     <Layout.Container gap="large">
       <Typography.Title>Visualizer</Typography.Title>
+
       <div
         style={{
           //this sets the reference frame for the absolute positioning
-          //of the nodes
+          //of the individual absolutely positioned nodes
           position: 'relative',
-          // ...rootBorderStyle,
         }}>
-        <VisualizationNode isRoot nodeId={root} nodes={nodes} />;
+        <Visualization2DNode
+          isRoot
+          nodeId={root}
+          nodes={nodes}
+          hoveredNode={hoveredNode}
+          onSelectNode={onSelectNode}
+        />
+        ;
       </div>
     </Layout.Container>
   );
 };
 
-function VisualizationNode({
+function Visualization2DNode({
   nodeId,
   nodes,
   isRoot,
+  hoveredNode,
+  onSelectNode,
 }: {
   isRoot: boolean;
   nodeId: Id;
   nodes: Map<Id, UINode>;
+  hoveredNode?: Id;
+  onSelectNode: (id: Id) => void;
 }) {
   const node = nodes.get(nodeId);
 
@@ -58,19 +62,28 @@ function VisualizationNode({
     return null;
   }
 
-  let childrenIds = node.children;
+  const isHovered = hoveredNode === nodeId;
 
-  //if there is an active child dont draw the other children
-  //this means we don't draw overlapping activities / tabs
-  if (node.activeChild) {
-    childrenIds = [node.activeChild];
+  let childrenIds: Id[] = [];
+
+  if (!isHovered) {
+    //if there is an active child don't draw the other children
+    //this means we don't draw overlapping activities / tabs etc
+    if (node.activeChild) {
+      childrenIds = [node.activeChild];
+    } else {
+      childrenIds = node.children;
+    }
   }
+
   const children = childrenIds.map((childId) => (
-    <VisualizationNode
+    <Visualization2DNode
       isRoot={false}
       key={childId}
       nodeId={childId}
       nodes={nodes}
+      hoveredNode={hoveredNode}
+      onSelectNode={onSelectNode}
     />
   ));
 
@@ -81,7 +94,15 @@ function VisualizationNode({
   const isZeroWidthOrHeight =
     node.bounds?.height === 0 || node.bounds?.width === 0;
   return (
-    <BoundsBox bounds={node.bounds} isRoot={isRoot} tags={node.tags}>
+    <BoundsBox
+      onClick={(e) => {
+        e.stopPropagation();
+        onSelectNode(nodeId);
+      }}
+      bounds={node.bounds}
+      isRoot={isRoot}
+      tags={node.tags}
+      isHovered={isHovered}>
       {/* Dirty hack to avoid showing highly overlapping text */}
       {!hasOverlappingChild && !isZeroWidthOrHeight && node.bounds
         ? node.name
@@ -94,11 +115,13 @@ function VisualizationNode({
 const BoundsBox = styled.div<{
   bounds?: Bounds;
   isRoot: boolean;
+  isHovered: boolean;
   tags: Tag[];
 }>((props) => {
   const bounds = props.bounds ?? {x: 0, y: 0, width: 0, height: 0};
   return {
     // borderWidth: props.isRoot ? '5px' : '1px',
+    cursor: 'pointer',
     borderWidth: '1px',
     //to offset the border
     margin: '-1px',
@@ -109,6 +132,7 @@ const BoundsBox = styled.div<{
       : 'black',
     borderStyle: 'solid',
     position: 'absolute',
+    backgroundColor: props.isHovered ? theme.selectionBackgroundColor : 'white',
     //todo need to understand why its so big and needs halving
     left: bounds.x / 2,
     top: bounds.y / 2,