Follow system dark theme preferences

web/src/components/core/Header.tsx

@@ -1,8 +1,8 @@
 import React from 'react';
-import { getTheme } from '@fluentui/react';
 import { CommandBar, ICommandBarItemProps } from '@fluentui/react/lib/CommandBar';
 
 import SettingsModal, { SettingsChanges } from '~/components/settings/SettingsModal';
+import ThemeableComponent from '@components/utils/ThemeableComponent';
 import AboutModal from '~/components/modals/AboutModal';
 import config from '~/services/config';
 import { getSnippetsMenuItems, SnippetMenuItem } from '~/utils/headerutils';
@@ -13,9 +13,12 @@ import {
   Dispatcher,
   dispatchToggleTheme,
   formatFileDispatcher,
-  newBuildParamsChangeDispatcher, newCodeImportDispatcher,
+  newBuildParamsChangeDispatcher,
+  newCodeImportDispatcher,
   newImportFileDispatcher,
-  newMonacoParamsChangeDispatcher, newSnippetLoadDispatcher,
+  newMonacoParamsChangeDispatcher,
+  newSnippetLoadDispatcher,
+  newSettingsChangeDispatcher,
   runFileDispatcher,
   saveFileDispatcher,
   shareSnippetDispatcher
@@ -39,15 +42,17 @@ interface Props {
   darkMode: boolean
   loading: boolean
   snippetName?: string
+  hideThemeToggle?: boolean,
   dispatch: (d: Dispatcher) => void
 }
 
 @Connect(({ settings, status, ui }) => ({
   darkMode: settings.darkMode,
   loading: status?.loading,
+  hideThemeToggle: settings.useSystemTheme,
   snippetName: ui?.shareCreated && ui?.snippetId
 }))
-export class Header extends React.Component<any, HeaderState> {
+export class Header extends ThemeableComponent<any, HeaderState> {
   private fileInput?: HTMLInputElement;
   private snippetMenuItems = getSnippetsMenuItems(i => this.onSnippetMenuItemClick(i));
 
@@ -80,10 +85,9 @@ export class Header extends React.Component<any, HeaderState> {
   }
 
   onSnippetMenuItemClick(item: SnippetMenuItem) {
-    // if (item.snippet) {
-    //   this.setState({ showShareMessage: true });
-    // }
-    const dispatcher = item.snippet ? newSnippetLoadDispatcher(item.snippet) : newCodeImportDispatcher(item.label, item.text as string);
+    const dispatcher = item.snippet ?
+      newSnippetLoadDispatcher(item.snippet) :
+      newCodeImportDispatcher(item.label, item.text as string);
     this.props.dispatch(dispatcher);
   }
 
@@ -173,6 +177,7 @@ export class Header extends React.Component<any, HeaderState> {
         text: 'Toggle Dark Mode',
         ariaLabel: 'Toggle Dark Mode',
         iconOnly: true,
+        hidden: this.props.hideThemeToggle,
         iconProps: { iconName: this.props.darkMode ? 'Brightness' : 'ClearNight' },
         onClick: () => {
           this.props.dispatch(dispatchToggleTheme)
@@ -209,14 +214,6 @@ export class Header extends React.Component<any, HeaderState> {
     ]
   }
 
-  get styles() {
-    // Apply the same colors as rest of Fabric components
-    const theme = getTheme();
-    return {
-      backgroundColor: theme.palette.white
-    }
-  }
-
   private onSettingsClose(changes: SettingsChanges) {
     if (changes.monaco) {
       // Update monaco state if some of it's settings were changed
@@ -229,36 +226,53 @@ export class Header extends React.Component<any, HeaderState> {
       this.props.dispatch(newBuildParamsChangeDispatcher(runtime, autoFormat));
     }
 
+    if (changes.settings) {
+      this.props.dispatch(newSettingsChangeDispatcher(changes.settings));
+    }
+
     this.setState({ showSettings: false });
   }
 
   render() {
     const { showShareMessage } = this.state;
     const { snippetName } = this.props;
-
-    return <header className='header' style={this.styles}>
-      <img
-        src='/go-logo-blue.svg'
-        className='header__logo'
-        alt='Golang Logo'
-      />
-      <CommandBar
-        className='header__commandBar'
-        items={this.menuItems}
-        farItems={this.asideItems}
-        overflowItems={this.overflowItems}
-        ariaLabel='CodeEditor menu'
-      />
-      <SharePopup
-        visible={!!(showShareMessage && snippetName)}
-        target={`.${BTN_SHARE_CLASSNAME}`}
-        snippetId={snippetName}
-        onDismiss={() => this.setState({ showShareMessage: false })}
-      />
-      <SettingsModal onClose={(args) => this.onSettingsClose(args)} isOpen={this.state.showSettings} />
-      <AboutModal onClose={() => this.setState({ showAbout: false })} isOpen={this.state.showAbout} />
-      <ChangeLogModal onClose={() => this.setState({ showChangelog: false })} isOpen={this.state.showChangelog} />
-    </header>;
+    return (
+      <header
+        className='header'
+        style={{backgroundColor: this.theme.palette.white}}
+      >
+        <img
+          src='/go-logo-blue.svg'
+          className='header__logo'
+          alt='Golang Logo'
+        />
+        <CommandBar
+          className='header__commandBar'
+          items={this.menuItems}
+          farItems={this.asideItems.filter(({hidden}) => !hidden)}
+          overflowItems={this.overflowItems}
+          ariaLabel='CodeEditor menu'
+        />
+        <SharePopup
+          visible={!!(showShareMessage && snippetName)}
+          target={`.${BTN_SHARE_CLASSNAME}`}
+          snippetId={snippetName}
+          onDismiss={() => this.setState({ showShareMessage: false })}
+        />
+        <SettingsModal
+          onClose={(args) => this.onSettingsClose(args)}
+          isOpen={this.state.showSettings}
+        />
+        <AboutModal
+          onClose={() => this.setState({ showAbout: false })}
+          isOpen={this.state.showAbout}
+        />
+        <ChangeLogModal
+          onClose={() => this.setState({ showChangelog: false })}
+          isOpen={this.state.showChangelog}
+        />
+      </header>
+    );
   }
 }
 

web/src/components/modals/AboutModal.tsx

@@ -1,5 +1,11 @@
 import React from 'react';
-import { getTheme, IconButton, FontWeights, FontSizes, mergeStyleSets } from '@fluentui/react';
+import {
+  IconButton,
+  FontWeights,
+  FontSizes,
+  mergeStyleSets,
+  useTheme
+} from '@fluentui/react';
 import { Modal } from '@fluentui/react/lib/Modal';
 import { Link } from '@fluentui/react/lib/Link';
 
@@ -29,7 +35,7 @@ const modalStyles = mergeStyleSets({
 });
 
 export default function AboutModal(props: AboutModalProps) {
-  const theme = getTheme();
+  const theme = useTheme();
   const contentStyles = getContentStyles(theme);
   const iconButtonStyles = getIconButtonStyles(theme);
 

web/src/components/modals/ChangeLogModal.tsx

@@ -1,5 +1,5 @@
 import React from 'react';
-import { getTheme, IconButton } from '@fluentui/react';
+import { useTheme, IconButton } from '@fluentui/react';
 import { Modal } from '@fluentui/react/lib/Modal';
 import { Link } from '@fluentui/react/lib/Link';
 
@@ -18,7 +18,7 @@ interface ChangeLogModalProps {
 }
 
 export default function ChangeLogModal(props: ChangeLogModalProps) {
-  const theme = getTheme();
+  const theme = useTheme();
   const contentStyles = getContentStyles(theme);
   const iconButtonStyles = getIconButtonStyles(theme);
 

web/src/components/preview/Preview.tsx

@@ -1,6 +1,7 @@
 import React from 'react';
-import { MessageBar, MessageBarType, getTheme } from '@fluentui/react';
+import { MessageBar, MessageBarType } from '@fluentui/react';
 
+import ThemeableComponent from '@components/utils/ThemeableComponent';
 import { getDefaultFontFamily } from '~/services/fonts';
 import { Connect } from '~/store';
 import { RuntimeType } from '~/services/config';
@@ -16,9 +17,9 @@ export interface PreviewProps {
 }
 
 @Connect(s => ({ darkMode: s.settings.darkMode, runtime: s.settings.runtime, ...s.status }))
-export default class Preview extends React.Component<PreviewProps> {
+export default class Preview extends ThemeableComponent<PreviewProps> {
   get styles() {
-    const { palette } = getTheme();
+    const { palette } = this.theme;
     return {
       backgroundColor: palette.neutralLight,
       color: palette.neutralDark,
@@ -35,12 +36,14 @@ export default class Preview extends React.Component<PreviewProps> {
     const isWasm = this.props.runtime === RuntimeType.WebAssembly;
     let content;
     if (this.props.lastError) {
-      content = <MessageBar messageBarType={MessageBarType.error} isMultiline={true}>
-        <b className='app-preview__label'>Error</b>
-        <pre className='app-preview__errors'>
-          {this.props.lastError}
-        </pre>
-      </MessageBar>
+      content = (
+        <MessageBar messageBarType={MessageBarType.error} isMultiline={true}>
+          <b className='app-preview__label'>Error</b>
+          <pre className='app-preview__errors'>
+            {this.props.lastError}
+          </pre>
+        </MessageBar>
+      )
     } else if (this.props.events) {
       content = this.props.events.map(({Message, Delay, Kind}, k) => (
         <EvalEventView

web/src/components/preview/ResizablePreview.tsx

@@ -1,6 +1,6 @@
-import React, {useCallback} from 'react';
-import {getTheme} from '@fluentui/react';
-import {Resizable} from 're-resizable';
+import React, { useCallback } from 'react';
+import { useTheme } from '@fluentui/react';
+import { Resizable } from 're-resizable';
 import clsx from 'clsx';
 import {
   VscChevronDown,
@@ -15,6 +15,7 @@ import {LayoutType, DEFAULT_PANEL_HEIGHT, DEFAULT_PANEL_WIDTH} from '~/styles/la
 import './ResizablePreview.css';
 
 const MIN_HEIGHT = 36;
+const MIN_WIDTH = 120;
 const handleClasses = {
   top: 'ResizablePreview__handle--top',
   left: 'ResizablePreview__handle--left',
@@ -38,7 +39,7 @@ const ResizablePreview: React.FC<Props> = ({
   collapsed,
   onViewChange
 }) => {
-  const {palette: { accent }, semanticColors: { buttonBorder }} = getTheme();
+  const {palette: { accent }, semanticColors: { buttonBorder }} = useTheme();
   const onResize = useCallback((e, direction, ref, size) => {
     switch (layout) {
       case LayoutType.Vertical:
@@ -83,6 +84,7 @@ const ResizablePreview: React.FC<Props> = ({
       enable={enabledCorners}
       onResizeStop={onResize}
       minHeight={MIN_HEIGHT}
+      minWidth={MIN_WIDTH}
       style={{
         '--pg-handle-active-color': accent,
         '--pg-handle-default-color': buttonBorder,

web/src/components/settings/SettingsModal.tsx

@@ -2,7 +2,6 @@ import React from 'react';
 import {
   Checkbox,
   Dropdown,
-  getTheme,
   IconButton,
   IDropdownOption,
   Modal
@@ -11,6 +10,7 @@ import {Pivot, PivotItem} from '@fluentui/react/lib/Pivot';
 import {MessageBar, MessageBarType} from '@fluentui/react/lib/MessageBar';
 import {Link} from '@fluentui/react/lib/Link';
 
+import ThemeableComponent from '@components/utils/ThemeableComponent';
 import {getContentStyles, getIconButtonStyles} from '~/styles/modal';
 import SettingsProperty from './SettingsProperty';
 import {MonacoSettings, RuntimeType} from '~/services/config';
@@ -63,6 +63,7 @@ const FONT_OPTS: IDropdownOption[] = [
 export interface SettingsChanges {
   monaco?: MonacoParamsChanges
   args?: BuildParamsArgs,
+  settings?: Partial<SettingsState>
 }
 
 export interface SettingsProps {
@@ -83,7 +84,7 @@ interface SettingsModalState {
   settings: state.settings,
   monaco: state.monaco,
 }))
-export default class SettingsModal extends React.Component<SettingsProps, SettingsModalState> {
+export default class SettingsModal extends ThemeableComponent<SettingsProps, SettingsModalState> {
   private titleID = 'Settings';
   private subtitleID = 'SettingsSubText';
   private changes: SettingsChanges = {};
@@ -110,10 +111,21 @@ export default class SettingsModal extends React.Component<SettingsProps, Settin
     this.changes.monaco[key] = val;
   }
 
+  private touchSettingsProperty(changes: Partial<SettingsState>) {
+    if (!this.changes.settings) {
+      this.changes.settings = changes;
+      return;
+    }
+
+    this.changes.settings = {
+      ...this.changes.settings,
+      ...changes,
+    };
+  }
+
   render() {
-    const theme = getTheme();
-    const contentStyles = getContentStyles(theme);
-    const iconButtonStyles = getIconButtonStyles(theme);
+    const contentStyles = getContentStyles(this.theme);
+    const iconButtonStyles = getIconButtonStyles(this.theme);
     const { showGoTipMessage, showWarning } = this.state;
     return (
       <Modal
@@ -147,6 +159,19 @@ export default class SettingsModal extends React.Component<SettingsProps, Settin
                   }}
                 />}
               />
+              <SettingsProperty
+                key='autoDetectTheme'
+                title='Use System Theme'
+                control={<Checkbox
+                  label='Follow system dark mode preference instead of manual toggle.'
+                  defaultChecked={this.props.settings?.useSystemTheme}
+                  onChange={(_, val) => {
+                    this.touchSettingsProperty({
+                      useSystemTheme: val
+                    });
+                  }}
+                />}
+              />
               <SettingsProperty
                 key='fontLigatures'
                 title='Font Ligatures'