First implementation of the 'React Fluent UI Theme Variant' sample

samples/react-fluentui-theme-variant/.gitignore

@@ -0,0 +1,33 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Dependency directories
+node_modules
+
+# Build generated files
+dist
+lib
+release
+solution
+temp
+*.sppkg
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# OSX
+.DS_Store
+
+# Visual Studio files
+.ntvs_analysis.dat
+.vs
+bin
+obj
+
+# Resx Generated Code
+*.resx.ts
+
+# Styles Generated Code
+*.scss.ts

samples/react-fluentui-theme-variant/.yo-rc.json

@@ -0,0 +1,12 @@
+{
+  "@microsoft/generator-sharepoint": {
+    "isCreatingSolution": true,
+    "environment": "spo",
+    "version": "1.12.1",
+    "libraryName": "react-fluentui-theme-variant",
+    "libraryId": "241da19a-7c8a-4ab9-8b32-bfc5fb77d9d2",
+    "packageManager": "npm",
+    "isDomainIsolated": false,
+    "componentType": "webpart"
+  }
+}

samples/react-fluentui-theme-variant/README.md

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+# react-fluentui-theme-variant
+
+## Summary
+
+Short summary on functionality and used technologies.
+
+[picture of the solution in action, if possible]
+
+## Used SharePoint Framework Version
+
+![version](https://img.shields.io/npm/v/@microsoft/sp-component-base/latest?color=green)
+
+## Applies to
+
+- [SharePoint Framework](https://aka.ms/spfx)
+- [Microsoft 365 tenant](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/set-up-your-developer-tenant)
+
+> Get your own free development tenant by subscribing to [Microsoft 365 developer program](http://aka.ms/o365devprogram)
+
+## Prerequisites
+
+> Any special pre-requisites?
+
+## Solution
+
+Solution|Author(s)
+--------|---------
+folder name | Author details (name, company, twitter alias with link)
+
+## Version history
+
+Version|Date|Comments
+-------|----|--------
+1.1|March 10, 2021|Update comment
+1.0|January 29, 2021|Initial release
+
+## Disclaimer
+
+**THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.**
+
+---
+
+## Minimal Path to Awesome
+
+- Clone this repository
+- Ensure that you are at the solution folder
+- in the command-line run:
+  - **npm install**
+  - **gulp serve**
+
+> Include any additional steps as needed.
+
+## Features
+
+Description of the extension that expands upon high-level summary above.
+
+This extension illustrates the following concepts:
+
+- topic 1
+- topic 2
+- topic 3
+
+> Notice that better pictures and documentation will increase the sample usage and the value you are providing for others. Thanks for your submissions advance.
+
+> Share your web part with others through Microsoft 365 Patterns and Practices program to get visibility and exposure. More details on the community, open-source projects and other activities from http://aka.ms/m365pnp.
+
+## References
+
+- [Getting started with SharePoint Framework](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/set-up-your-developer-tenant)
+- [Building for Microsoft teams](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/build-for-teams-overview)
+- [Use Microsoft Graph in your solution](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/web-parts/get-started/using-microsoft-graph-apis)
+- [Publish SharePoint Framework applications to the Marketplace](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/publish-to-marketplace-overview)
+- [Microsoft 365 Patterns and Practices](https://aka.ms/m365pnp) - Guidance, tooling, samples and open-source controls for your Microsoft 365 development

samples/react-fluentui-theme-variant/config/config.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/config.2.0.schema.json",
+  "version": "2.0",
+  "bundles": {
+    "fluent-ui-theme-variant-web-part": {
+      "components": [
+        {
+          "entrypoint": "./lib/webparts/fluentUiThemeVariant/FluentUiThemeVariantWebPart.js",
+          "manifest": "./src/webparts/fluentUiThemeVariant/FluentUiThemeVariantWebPart.manifest.json"
+        }
+      ]
+    }
+  },
+  "externals": {},
+  "localizedResources": {
+    "FluentUiThemeVariantWebPartStrings": "lib/webparts/fluentUiThemeVariant/loc/{locale}.js",
+    "PropertyControlStrings": "node_modules/@pnp/spfx-property-controls/lib/loc/{locale}.js"
+  }
+}

samples/react-fluentui-theme-variant/config/copy-assets.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/copy-assets.schema.json",
+  "deployCdnPath": "./release/assets/"
+}

samples/react-fluentui-theme-variant/config/deploy-azure-storage.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/deploy-azure-storage.schema.json",
+  "workingDir": "./release/assets/",
+  "account": "<!-- STORAGE ACCOUNT NAME -->",
+  "container": "react-fluentui-theme-variant",
+  "accessKey": "<!-- ACCESS KEY -->"
+}

samples/react-fluentui-theme-variant/config/package-solution.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/package-solution.schema.json",
+  "solution": {
+    "name": "react-fluentui-theme-variant-client-side-solution",
+    "id": "241da19a-7c8a-4ab9-8b32-bfc5fb77d9d2",
+    "version": "1.0.0.0",
+    "includeClientSideAssets": true,
+    "isDomainIsolated": false,
+    "developer": {
+      "name": "",
+      "websiteUrl": "",
+      "privacyUrl": "",
+      "termsOfUseUrl": "",
+      "mpnId": ""
+    }
+  },
+  "paths": {
+    "zippedPackage": "solution/react-fluentui-theme-variant.sppkg"
+  }
+}

samples/react-fluentui-theme-variant/config/serve.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/core-build/serve.schema.json",
+  "port": 4321,
+  "https": true,
+  "initialPage": "https://localhost:5432/workbench",
+  "api": {
+    "port": 5432,
+    "entryPath": "node_modules/@microsoft/sp-webpart-workbench/lib/api/"
+  }
+}

samples/react-fluentui-theme-variant/config/write-manifests.json

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+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/write-manifests.schema.json",
+  "cdnBasePath": "<!-- PATH TO CDN -->"
+}

samples/react-fluentui-theme-variant/gulpfile.js

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+'use strict';
+
+const build = require('@microsoft/sp-build-web');
+
+build.addSuppression(`Warning - [sass] The local CSS class 'ms-Grid' is not camelCase and will not be type-safe.`);
+
+var getTasks = build.rig.getTasks;
+build.rig.getTasks = function () {
+  var result = getTasks.call(build.rig);
+
+  result.set('serve', result.get('serve-deprecated'));
+
+  return result;
+};
+
+build.initialize(require('gulp'));

samples/react-fluentui-theme-variant/package.json

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+{
+  "name": "react-fluentui-theme-variant",
+  "version": "0.0.1",
+  "private": true,
+  "main": "lib/index.js",
+  "scripts": {
+    "build": "gulp bundle",
+    "clean": "gulp clean",
+    "test": "gulp test"
+  },
+  "dependencies": {
+    "@fluentui/react-theme-provider": "^0.18.5",
+    "@fluentui/scheme-utilities": "^8.1.6",
+    "@microsoft/sp-core-library": "1.12.1",
+    "@microsoft/sp-lodash-subset": "1.12.1",
+    "@microsoft/sp-office-ui-fabric-core": "1.12.1",
+    "@microsoft/sp-property-pane": "1.12.1",
+    "@microsoft/sp-webpart-base": "1.12.1",
+    "@pnp/spfx-property-controls": "^3.2.0",
+    "office-ui-fabric-react": "7.156.0",
+    "react": "16.9.0",
+    "react-dom": "16.9.0"
+  },
+  "devDependencies": {
+    "@types/react": "16.9.36",
+    "@types/react-dom": "16.9.8",
+    "@microsoft/sp-build-web": "1.12.1",
+    "@microsoft/sp-tslint-rules": "1.12.1",
+    "@microsoft/sp-module-interfaces": "1.12.1",
+    "@microsoft/sp-webpart-workbench": "1.12.1",
+    "@microsoft/rush-stack-compiler-3.7": "0.2.3",
+    "gulp": "~4.0.2",
+    "ajv": "~5.2.2",
+    "@types/webpack-env": "1.13.1"
+  }
+}

samples/react-fluentui-theme-variant/src/index.ts

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+// A file is required to be in the root of the /src directory by the TypeScript compiler

samples/react-fluentui-theme-variant/src/services/ThemeService.ts

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+import { Theme } from "@fluentui/react-theme-provider";
+import { getNeutralVariant, getSoftVariant, getStrongVariant } from "@fluentui/scheme-utilities/lib/variants";
+import { IReadonlyTheme } from '@microsoft/sp-component-base';
+import { ServiceKey, ServiceScope } from "@microsoft/sp-core-library";
+import { BaseSlots, createTheme, FabricSlots, getColorFromString, getContrastRatio, getTheme, IColor, isDark, ThemeGenerator, themeRulesStandardCreator } from "office-ui-fabric-react";
+
+export interface IContrastRatioPair {
+    contrastRatioValue: string;
+    contrastRatioPair: string;
+    colorPair: string;
+}
+
+export enum ThemeType {
+    current = "current",
+    section = "section",
+    custom = "custom"
+}
+
+export enum BackgroundShadingType {
+    none = "none",
+    neutral = "neutral",
+    soft = "soft",
+    strong = "strong"
+}
+
+export interface IThemeService {
+    setCustomColors(primaryColor: string, textColor: string, backgroundColor: string): void;
+    setThemeVariant(themeVariant: IReadonlyTheme | Theme): void;
+    generateTheme(themeType: ThemeType, backgroundShadingType: BackgroundShadingType): IReadonlyTheme | Theme;
+}
+
+const ThemeService_ServiceKey = 'ReactFluentUIThemeVariant:ThemeService';
+
+export class ThemeService implements IThemeService {
+    public static ServiceKey: ServiceKey<IThemeService> = ServiceKey.create(ThemeService_ServiceKey, ThemeService);
+    private serviceScope: ServiceScope;
+    private themeRules = themeRulesStandardCreator();
+
+    private themeVariant: IReadonlyTheme | Theme;
+    private primaryColor: string;
+    private textColor: string;
+    private backgroundColor: string;
+
+    public constructor(serviceScope: ServiceScope) {
+        this.serviceScope = serviceScope;
+    }
+
+    public setCustomColors(primaryColor: string, textColor: string, backgroundColor: string): void {
+        if (!primaryColor)
+            throw 'primaryColor == null or undefined';
+        else
+            this.primaryColor = primaryColor;
+
+        if (!textColor)
+            throw 'textColor == null or undefined';
+        else
+            this.textColor = textColor;
+
+        if (!backgroundColor)
+            throw 'backgroundColor == null or undefined';
+        this.backgroundColor = backgroundColor;
+    }
+
+    public setThemeVariant(themeVariant: IReadonlyTheme | Theme): void {
+        this.themeVariant = themeVariant;
+    }
+
+    public generateTheme(themeType: ThemeType, backgroundShadingType: BackgroundShadingType): IReadonlyTheme | Theme {
+        let currentTheme: IReadonlyTheme | Theme;
+
+        switch (themeType) {
+            case ThemeType.current: currentTheme = this.getDefaultTheme();
+                break;
+            case ThemeType.section: currentTheme = this.themeVariant;
+                break;
+            case ThemeType.custom: currentTheme = this.generateThemeFromColors();
+                break;
+        }
+
+        switch (backgroundShadingType) {
+            case BackgroundShadingType.none: currentTheme = currentTheme;
+                break;
+            case BackgroundShadingType.neutral: currentTheme = getNeutralVariant(currentTheme);
+                break;
+            case BackgroundShadingType.soft: currentTheme = getSoftVariant(currentTheme);
+                break;
+            case BackgroundShadingType.strong: currentTheme = getStrongVariant(currentTheme);
+                break;
+        }
+
+        return currentTheme;
+    }
+
+    private getDefaultTheme(): Theme {
+        let currentTheme;
+        const themeColorsFromWindow: any = (window as any).__themeState__.theme;
+        if (themeColorsFromWindow) {
+            currentTheme = createTheme({
+                palette: themeColorsFromWindow
+            });
+        }
+        else
+            currentTheme = getTheme();
+
+        return currentTheme;
+    }
+
+    private generateThemeFromColors(): Theme {
+        ThemeGenerator.setSlot(this.themeRules[BaseSlots[BaseSlots.primaryColor]], getColorFromString(this.primaryColor), false, true, true);
+        ThemeGenerator.setSlot(this.themeRules[BaseSlots[BaseSlots.foregroundColor]], getColorFromString(this.textColor), false, true, true);
+        ThemeGenerator.setSlot(this.themeRules[BaseSlots[BaseSlots.backgroundColor]], getColorFromString(this.backgroundColor), false, true, true);
+        ThemeGenerator.insureSlots(this.themeRules, false);
+
+        let generatedTheme = createTheme({
+            ...{ palette: ThemeGenerator.getThemeAsJson(this.themeRules) },
+            isInverted: isDark(this.themeRules[BaseSlots[BaseSlots.backgroundColor]].color!),
+        });
+
+        return generatedTheme;
+    }
+}

samples/react-fluentui-theme-variant/src/webparts/fluentUiThemeVariant/FluentUiThemeVariantWebPart.manifest.json

@@ -0,0 +1,22 @@
+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx/client-side-web-part-manifest.schema.json",
+  "id": "91003ade-424e-44d5-8c1e-af1273519a18",
+  "alias": "FluentUiThemeVariantWebPart",
+  "componentType": "WebPart",
+  "version": "*",
+  "manifestVersion": 2,
+  "requiresCustomScript": false,
+  "supportedHosts": ["SharePointWebPart"],
+  "supportsThemeVariants": true,
+  "preconfiguredEntries": [{
+    "groupId": "5c03119e-3074-46fd-976b-c60198311f70",
+    "group": { "default": "Other" },
+    "title": { "default": "Fluent UI Theme Variant" },
+    "description": { "default": "Example on how to apply Fluent UI theme variant not only at Section level but at Web Part level" },
+    "officeFabricIconFontName": "BackgroundColor",
+    "properties": {
+      "themeType": "current",
+      "backgroundShadingType": "none"
+    }
+  }]
+}

samples/react-fluentui-theme-variant/src/webparts/fluentUiThemeVariant/FluentUiThemeVariantWebPart.ts

@@ -0,0 +1,234 @@
+import { IReadonlyTheme, ThemeChangedEventArgs, ThemeProvider } from '@microsoft/sp-component-base';
+import { Version } from '@microsoft/sp-core-library';
+import { isEqual } from '@microsoft/sp-lodash-subset';
+import {
+  IPropertyPaneConfiguration,
+  PropertyPaneChoiceGroup,
+  PropertyPaneDropdown
+} from '@microsoft/sp-property-pane';
+import { BaseClientSideWebPart } from '@microsoft/sp-webpart-base';
+import { PropertyFieldColorPicker, PropertyFieldColorPickerStyle } from '@pnp/spfx-property-controls/lib/PropertyFieldColorPicker';
+import { PropertyFieldMessage } from '@pnp/spfx-property-controls/lib/PropertyFieldMessage';
+import * as strings from 'FluentUiThemeVariantWebPartStrings';
+import { MessageBarType } from 'office-ui-fabric-react/lib/MessageBar';
+import * as React from 'react';
+import * as ReactDom from 'react-dom';
+import { BackgroundShadingType, IContrastRatioPair, IThemeService, ThemeService, ThemeType } from '../../services/ThemeService';
+import FluentUiThemeVariant, { IFluentUiThemeVariantProps } from './components/FluentUiThemeVariant';
+
+export interface IFluentUiThemeVariantWebPartProps {
+  themeType: ThemeType;
+  backgroundShadingType: BackgroundShadingType;
+  primaryColor: string;
+  textColor: string;
+  backgroundColor: string;
+}
+
+export default class FluentUiThemeVariantWebPart extends BaseClientSideWebPart<IFluentUiThemeVariantWebPartProps> {
+  private themeService: IThemeService;
+  protected themeProvider: ThemeProvider;
+  protected themeVariant: IReadonlyTheme;
+
+  protected onInit(): Promise<void> {
+    this.themeService = this.context.serviceScope.consume<IThemeService>(ThemeService.ServiceKey);
+
+    this.themeProvider = this.context.serviceScope.consume(ThemeProvider.serviceKey);
+    this.themeVariant = this.themeProvider.tryGetTheme();
+    this.themeProvider.themeChangedEvent.add(this, (args: ThemeChangedEventArgs): void => {
+      if (!isEqual(this.themeVariant, args.theme)) {
+        this.themeVariant = args.theme;
+        this.themeService.setThemeVariant(this.themeVariant);
+        this.render();
+      }
+    });
+
+    if (!this.properties.primaryColor)
+      this.properties.primaryColor = "#0078d4";
+
+    if (!this.properties.textColor)
+      this.properties.textColor = "#323130";
+
+    if (!this.properties.backgroundColor)
+      this.properties.backgroundColor = "#ffffff";
+
+
+    this.themeService.setThemeVariant(this.themeVariant);
+    this.themeService.setCustomColors(this.properties.primaryColor, this.properties.textColor, this.properties.backgroundColor);
+
+    return super.onInit();
+  }
+
+  public render(): void {
+
+    const element: React.ReactElement<IFluentUiThemeVariantProps> = React.createElement(
+      FluentUiThemeVariant,
+      {
+        themeVariant: this.themeService.generateTheme(
+          this.properties.themeType,
+          this.properties.backgroundShadingType)
+      }
+    );
+
+    ReactDom.render(element, this.domElement);
+  }
+
+
+
+  protected onDispose(): void {
+    ReactDom.unmountComponentAtNode(this.domElement);
+  }
+
+  protected get dataVersion(): Version {
+    return Version.parse('1.0');
+  }
+
+  protected getPropertyPaneConfiguration(): IPropertyPaneConfiguration {
+
+    let inlineSvgNone = this.generateInlineSvgForBackgroundShadingType(BackgroundShadingType.none);
+    let inlineSvgNeutral = this.generateInlineSvgForBackgroundShadingType(BackgroundShadingType.neutral);
+    let inlineSvgSoft = this.generateInlineSvgForBackgroundShadingType(BackgroundShadingType.soft);
+    let inlineSvgStrong = this.generateInlineSvgForBackgroundShadingType(BackgroundShadingType.strong);
+
+    console.log(inlineSvgNone);
+    console.log(inlineSvgStrong);
+
+    return {
+      pages: [
+        {
+          header: {
+            description: strings.PropertyPaneDescription
+          },
+          groups: [
+            {
+              groupName: strings.BasicGroupName,
+              groupFields: [
+                PropertyPaneDropdown('themeType', {
+                  label: strings.ThemeTypeField,
+                  options: [
+                    { key: ThemeType.current, text: strings.Texts.Current },
+                    { key: ThemeType.section, text: strings.Texts.Section },
+                    { key: ThemeType.custom, text: strings.Texts.Custom }
+                  ]
+                }),
+                // PropertyFieldMessage("", {
+                //   key: "colorPaletteAccessibilityErrors",
+                //   text: this.getNonAccessiblePairsMessage(this.themeService.getNonAccessiblePairs()),
+                //   multiline: true,
+                //   messageType: MessageBarType.warning,
+                //   isVisible: this.properties.themeType == ThemeType.custom && this.themeService.getNonAccessiblePairs().length > 0,
+                // }),
+                PropertyFieldColorPicker('primaryColor', {
+                  label: strings.PrimaryColorField,
+                  selectedColor: this.properties.primaryColor,
+                  onPropertyChange: this.onCustomPropertyPaneFieldChanged,
+                  properties: this.properties,
+                  disabled: false,
+                  isHidden: this.properties.themeType != ThemeType.custom,
+                  alphaSliderHidden: false,
+                  style: PropertyFieldColorPickerStyle.Inline,
+                  iconName: 'Color',
+                  key: 'primaryColorFieldId'
+                }),
+                PropertyFieldColorPicker('textColor', {
+                  label: strings.TextColorField,
+                  selectedColor: this.properties.textColor,
+                  onPropertyChange: this.onCustomPropertyPaneFieldChanged,
+                  properties: this.properties,
+                  disabled: false,
+                  isHidden: this.properties.themeType != ThemeType.custom,
+                  alphaSliderHidden: false,
+                  style: PropertyFieldColorPickerStyle.Inline,
+                  iconName: 'Color',
+                  key: 'textColorFieldId'
+                }),
+                PropertyFieldColorPicker('backgroundColor', {
+                  label: strings.BackgroundColorField,
+                  selectedColor: this.properties.backgroundColor,
+                  onPropertyChange: this.onCustomPropertyPaneFieldChanged,
+                  properties: this.properties,
+                  disabled: false,
+                  isHidden: this.properties.themeType != ThemeType.custom,
+                  alphaSliderHidden: false,
+                  style: PropertyFieldColorPickerStyle.Inline,
+                  iconName: 'Color',
+                  key: 'backgroundColorFieldId'
+                }),
+                PropertyPaneChoiceGroup('backgroundShadingType', {
+                  label: strings.BackgroundShadingTypeField,
+                  options: [{
+                    key: BackgroundShadingType.none,
+                    text: strings.Texts.None,
+                    imageSize: {
+                      width: 40,
+                      height: 40
+                    },
+                    imageSrc: inlineSvgNone,
+                    selectedImageSrc: inlineSvgNone
+                  },
+                  {
+                    key: BackgroundShadingType.neutral,
+                    text: strings.Texts.Neutral,
+                    imageSize: {
+                      width: 40,
+                      height: 40
+                    },
+                    imageSrc: inlineSvgNeutral,
+                    selectedImageSrc: inlineSvgNeutral
+                  },
+                  {
+                    key: BackgroundShadingType.soft,
+                    text: strings.Texts.Soft,
+                    imageSize: {
+                      width: 40,
+                      height: 40
+                    },
+                    imageSrc: inlineSvgSoft,
+                    selectedImageSrc: inlineSvgSoft
+                  },
+                  {
+                    key: BackgroundShadingType.strong,
+                    text: strings.Texts.Strong,
+                    imageSize: {
+                      width: 40,
+                      height: 40
+                    },
+                    imageSrc: inlineSvgStrong,
+                    selectedImageSrc: inlineSvgStrong
+                  }]
+                })
+              ]
+            }
+          ]
+        }
+      ]
+    };
+  }
+
+  private generateInlineSvgForBackgroundShadingType(type: BackgroundShadingType): string {
+    let currentTheme = this.themeService.generateTheme(this.properties.themeType, type);
+    let backgroundColor = currentTheme.semanticColors.bodyBackground.replace("#", "%23");
+    let textColor = currentTheme.semanticColors.bodyText.replace("#", "%23");
+
+    return `data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='45' height='45'%3E%3Crect x='0' y='0' width='45' height='45' stroke='black' stroke-width='2px' fill='${backgroundColor}'/%3E%3Ctext fill='${textColor}' font-family='Segoe UI, sans-serif' x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle'%3EAa%3C/text%3E%3C/svg%3E`;
+  }
+
+  private onCustomPropertyPaneFieldChanged = (targetProperty: string, oldValue: string, newValue: string) => {
+    if (targetProperty == "primaryColor" || targetProperty == "textColor" || targetProperty == "backgroundColor") {
+      this.themeService.setCustomColors(this.properties.primaryColor, this.properties.textColor, this.properties.backgroundColor);
+      //this.themeService.calculateContrastRatioPairs();
+    }
+
+    this.onPropertyPaneFieldChanged(targetProperty, oldValue, newValue);
+  }
+
+  // private getNonAccessiblePairsMessage(contrastRatios: IContrastRatioPair[]): string {
+  //   let message = `Your color palette has ${this.themeService.getNonAccessiblePairs().length} accessibility errors:`;
+
+  //   contrastRatios.forEach((element, index) => {
+  //     message += (index > 0) ? `, ${element.colorPair}` : ` ${element.colorPair}`;
+  //   });
+
+  //   return message;
+  // }
+}
+

samples/react-fluentui-theme-variant/src/webparts/fluentUiThemeVariant/components/FluentUiThemeVariant.tsx

@@ -0,0 +1,54 @@
+
+import { ThemeProvider } from '@fluentui/react-theme-provider';
+import { DefaultButton, DetailsList, DetailsListLayoutMode, Label, Link, PrimaryButton, Stack } from 'office-ui-fabric-react';
+import * as React from 'react';
+import { useEffect } from 'react';
+import { PartialTheme, Theme } from '@fluentui/react-theme-provider';
+
+export interface IFluentUiThemeVariantProps {
+  themeVariant: PartialTheme | Theme;
+}
+
+export default function FluentUiThemeVariant(props: IFluentUiThemeVariantProps) {
+  const [items, setItems] = React.useState(new Array());
+  useEffect(() => {
+    // Populate with items for demos.
+    let allItems = [];
+    for (let i = 0; i < 5; i++) {
+      allItems.push({
+        key: i,
+        name: 'Item ' + i,
+        value: i,
+      });
+    }
+
+    setItems(allItems);
+  }, [props.themeVariant]);
+
+  return (
+    <ThemeProvider theme={props.themeVariant}>
+      <Stack tokens={{ childrenGap: 5, padding: 5 }}>
+        <Label>This Web Part implements an example on how to use the 'Fluent UI' theme library and how to apply/generate theme variation for the Web Part itself.</Label>
+        <PrimaryButton>Primary Button</PrimaryButton>
+        <DefaultButton>Default Button</DefaultButton>
+        <Link>Link</Link>
+        <DetailsList
+          items={items}
+          columns={
+            [
+              { key: 'column1', name: 'Name', fieldName: 'name', minWidth: 100, maxWidth: 200, isResizable: true },
+              { key: 'column2', name: 'Value', fieldName: 'value', minWidth: 100, maxWidth: 200, isResizable: true },
+            ]
+          }
+          setKey="set"
+          layoutMode={DetailsListLayoutMode.justified}
+          selectionPreservedOnEmptyClick={true}
+          ariaLabelForSelectionColumn="Toggle selection"
+          ariaLabelForSelectAllCheckbox="Toggle selection for all items"
+          checkButtonAriaLabel="Row checkbox"
+        />
+      </Stack>
+    </ThemeProvider>
+  );
+}
+

samples/react-fluentui-theme-variant/src/webparts/fluentUiThemeVariant/loc/en-us.js

@@ -0,0 +1,20 @@
+define([], function() {
+  return {
+    "PropertyPaneDescription": "Web Part Configuration",
+    "BasicGroupName": "Core Settings",
+    "ThemeTypeField": "Theme Type",
+    "PrimaryColorField": "Primary Color",
+    "TextColorField": "Text Color",
+    "BackgroundColorField": "Background Color",
+    "BackgroundShadingTypeField": "Background Shading",
+    "Texts": {
+      "Current": "Current SharePoint Theme",
+      "Section": "Current Section Variation",
+      "Custom": "Custom",
+      "None": "None",
+      "Neutral": "Neutral",
+      "Soft": "Soft",
+      "Strong": "Strong",
+    }
+  }
+});

samples/react-fluentui-theme-variant/src/webparts/fluentUiThemeVariant/loc/mystrings.d.ts

@@ -0,0 +1,23 @@
+declare interface IFluentUiThemeVariantWebPartStrings {
+  PropertyPaneDescription: string;
+  BasicGroupName: string;
+  ThemeTypeField: string;
+  PrimaryColorField: string;
+  TextColorField: string;
+  BackgroundColorField: string;
+  BackgroundShadingTypeField: string;
+  Texts: {
+    Current: string;
+    Section: string;
+    Custom: string;
+    None: string;
+    Neutral: string;
+    Soft: string;
+    Strong: string;
+  }
+}
+
+declare module 'FluentUiThemeVariantWebPartStrings' {
+  const strings: IFluentUiThemeVariantWebPartStrings;
+  export = strings;
+}

samples/react-fluentui-theme-variant/tsconfig.json

@@ -0,0 +1,35 @@
+{
+  "extends": "./node_modules/@microsoft/rush-stack-compiler-3.7/includes/tsconfig-web.json",
+  "compilerOptions": {
+    "target": "es5",
+    "forceConsistentCasingInFileNames": true,
+    "module": "esnext",
+    "moduleResolution": "node",
+    "jsx": "react",
+    "declaration": true,
+    "sourceMap": true,
+    "experimentalDecorators": true,
+    "skipLibCheck": true,
+    "outDir": "lib",
+    "inlineSources": false,
+    "strictNullChecks": false,
+    "noUnusedLocals": false,
+    "typeRoots": [
+      "./node_modules/@types",
+      "./node_modules/@microsoft"
+    ],
+    "types": [
+      "webpack-env"
+    ],
+    "lib": [
+      "es5",
+      "dom",
+      "es2015.collection",
+      "es2015.promise"
+    ]
+  },
+  "include": [
+    "src/**/*.ts",
+    "src/**/*.tsx"
+  ]
+}

samples/react-fluentui-theme-variant/tslint.json

@@ -0,0 +1,30 @@
+{
+  "extends": "./node_modules/@microsoft/sp-tslint-rules/base-tslint.json",
+  "rules": {
+    "class-name": false,
+    "export-name": false,
+    "forin": false,
+    "label-position": false,
+    "member-access": true,
+    "no-arg": false,
+    "no-console": false,
+    "no-construct": false,
+    "no-duplicate-variable": true,
+    "no-eval": false,
+    "no-function-expression": true,
+    "no-internal-module": true,
+    "no-shadowed-variable": true,
+    "no-switch-case-fall-through": true,
+    "no-unnecessary-semicolons": true,
+    "no-unused-expression": true,
+    "no-use-before-declare": true,
+    "no-with-statement": true,
+    "semicolon": true,
+    "trailing-comma": false,
+    "typedef": false,
+    "typedef-whitespace": false,
+    "use-named-parameter": true,
+    "variable-name": false,
+    "whitespace": false
+  }
+}