Fix Height for Main Layout Inspector

Summary:
in Layout plugin, scrollbars where often not visible, for example to see the vertical scrollbar, one had to scroll to the horizontal end first.

Also introduced the `Scrollable` component to simplify this in the feature and separate the concepts of rendering something large and making it scrollable.

This diff cleans up the layout structure and fixes the problem

changelog: Fixed several minor layout issues in the Layout plugin

Reviewed By: cekkaewnumchai

Differential Revision: D21283157

fbshipit-source-id: 81849151475165796c65001616f038a9d6cbdfb2

desktop/app/src/ui/components/Scrollable.tsx

@@ -0,0 +1,20 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import React from 'react';
+import styled from '@emotion/styled';
+
+const Scrollable: React.FC<{children: React.ReactNode}> = styled('div')({
+  width: '100%',
+  height: '100%',
+  overflow: 'auto',
+});
+Scrollable.displayName = 'Scrollable';
+
+export default Scrollable;

desktop/app/src/ui/components/VerticalRule.tsx

@@ -13,6 +13,7 @@ const VerticalRule = styled.div({
   backgroundColor: '#c9ced4',
   width: 3,
   margin: '0',
+  flexShrink: 0,
 });
 VerticalRule.displayName = 'VerticalRule';
 

desktop/app/src/ui/components/elements-inspector/elements.tsx

@@ -19,6 +19,7 @@ import Text from '../Text';
 import styled from '@emotion/styled';
 import {clipboard, MenuItemConstructorOptions} from 'electron';
 import React, {MouseEvent, KeyboardEvent} from 'react';
+import {Scrollable} from '../..';
 
 export const ROW_HEIGHT = 23;
 
@@ -424,17 +425,9 @@ const ElementsContainer = styled(FlexColumn)({
   backgroundColor: colors.white,
   minHeight: '100%',
   minWidth: '100%',
-  overflow: 'auto',
 });
 ElementsContainer.displayName = 'Elements:ElementsContainer';
 
-const ElementsBox = styled(FlexColumn)({
-  alignItems: 'flex-start',
-  flex: 1,
-  overflow: 'auto',
-});
-ElementsBox.displayName = 'Elements:ElementsBox';
-
 export type DecorateRow = (e: Element) => ReactElement<any> | undefined | null;
 
 type ElementsProps = {
@@ -710,14 +703,14 @@ export class Elements extends PureComponent<ElementsProps, ElementsState> {
 
   render() {
     return (
-      <ElementsBox>
+      <Scrollable>
         <ElementsContainer
           onKeyDown={this.onKeyDown}
           tabIndex={0}
           ref={this._outerRef}>
           {this.state.flatElements.map(this.buildRow)}
         </ElementsContainer>
-      </ElementsBox>
+      </Scrollable>
     );
   }
 }

desktop/app/src/ui/index.tsx

@@ -176,4 +176,5 @@ export {default as Info} from './components/Info';
 export {default as Bordered} from './components/Bordered';
 export {default as AlternatingRows} from './components/AlternatingRows';
 export {default as Layout} from './components/Layout';
+export {default as Scrollable} from './components/Scrollable';
 export * from './components/Highlight';

desktop/plugins/layout/index.tsx

@@ -12,7 +12,6 @@ import {
   Element,
   ElementSearchResultSet,
   PluginClient,
-  FlexColumn,
   FlexRow,
   FlipperPlugin,
   Toolbar,
@@ -29,6 +28,7 @@ import {
   ReduxState,
   ArchivedDevice,
   ToolbarIcon,
+  Layout,
 } from 'flipper';
 import Inspector from './Inspector';
 import InspectorSidebar from './InspectorSidebar';
@@ -80,7 +80,11 @@ const FlipperADButton = styled(Button)({
 type ClientGetNodesCalls = 'getNodes' | 'getAXNodes';
 type ClientMethodCalls = 'getRoot' | 'getAXRoot' | ClientGetNodesCalls;
 
-export default class Layout extends FlipperPlugin<State, any, PersistedState> {
+export default class LayoutPlugin extends FlipperPlugin<
+  State,
+  any,
+  PersistedState
+> {
   FlipperADBar() {
     return (
       <FlipperADBarContainer>
@@ -122,7 +126,7 @@ export default class Layout extends FlipperPlugin<State, any, PersistedState> {
 
     if (rootElement) {
       statusUpdate && statusUpdate('Fetching Child Nodes...');
-      await Layout.getAllNodes(
+      await LayoutPlugin.getAllNodes(
         rootElement,
         elements,
         callClient,
@@ -133,7 +137,7 @@ export default class Layout extends FlipperPlugin<State, any, PersistedState> {
     const AXelements: ElementMap = {};
     if (rootAXElement) {
       statusUpdate && statusUpdate('Fetching Child AX Nodes...');
-      await Layout.getAllNodes(
+      await LayoutPlugin.getAllNodes(
         rootAXElement,
         AXelements,
         callClient,
@@ -167,7 +171,7 @@ export default class Layout extends FlipperPlugin<State, any, PersistedState> {
         async ({elements}: {elements: Array<Element>}) => {
           await Promise.all(
             elements.map(async (elem) => {
-              await Layout.getAllNodes(
+              await LayoutPlugin.getAllNodes(
                 elem,
                 nodeMap,
                 callClient,
@@ -333,7 +337,7 @@ export default class Layout extends FlipperPlugin<State, any, PersistedState> {
       ax: this.state.inAXMode,
     });
   };
-  showFlipperADBar: boolean = false;
+  showFlipperADBar: boolean = true;
 
   getScreenDimensions(): {width: number; height: number} | null {
     if (this.state.screenDimensions) {
@@ -405,25 +409,28 @@ export default class Layout extends FlipperPlugin<State, any, PersistedState> {
       />
     );
 
-    const axInspector = this.state.inAXMode && (
+    const axInspector = this.state.inAXMode ? (
+      <FlexRow>
+        <VerticalRule />
         <Inspector
           {...inspectorProps}
           onSelect={(selectedAXElement) => this.setState({selectedAXElement})}
           showsSidebar={true}
           ax
         />
-    );
+      </FlexRow>
-
+    ) : null;
-    const divider = this.state.inAXMode && <VerticalRule />;
 
     const showAnalyzeYogaPerformanceButton = GK.get('flipper_yogaperformance');
 
     const screenDimensions = this.getScreenDimensions();
 
+    if (!this.state.init) {
+      return null;
+    }
     return (
-      <FlexColumn grow={true}>
-        {this.state.init && (
       <>
+        <Layout.Top>
           <Toolbar>
             {!this.props.isArchivedDevice && (
               <ToolbarIcon
@@ -449,8 +456,7 @@ export default class Layout extends FlipperPlugin<State, any, PersistedState> {
                 active={this.state.inAlignmentMode}
               />
             )}
-              {this.props.isArchivedDevice &&
+            {this.props.isArchivedDevice && this.state.visualizerScreenshot && (
-                this.state.visualizerScreenshot && (
               <ToolbarIcon
                 onClick={this.onToggleVisualizer}
                 title="Toggle visual recreation of layout"
@@ -470,12 +476,15 @@ export default class Layout extends FlipperPlugin<State, any, PersistedState> {
               initialQuery={this.props.deepLinkPayload}
             />
           </Toolbar>
-            <FlexRow grow={true}>
+          <Layout.Bottom>
+            <Layout.Right>
               {inspector}
-              {divider}
               {axInspector}
-            </FlexRow>
+            </Layout.Right>
-            {this.showFlipperADBar && this.FlipperADBar()}
+            {this.showFlipperADBar ? this.FlipperADBar() : null}
+          </Layout.Bottom>
+        </Layout.Top>
+
         <DetailSidebar>
           <InspectorSidebar
             client={this.getClient()}
@@ -512,8 +521,6 @@ export default class Layout extends FlipperPlugin<State, any, PersistedState> {
             'Loading...'
           ))}
       </>
-        )}
-      </FlexColumn>
     );
   }
 }