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fluent-ui-integration-patterns

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更新时间2026年3月20日 17:01

Integrating Fluent UI with Azure AD B2C custom UI, Office Add-ins (Excel, Word, Outlook task panes), SharePoint/M365 web apps, and navigation patterns (Nav, Drawer components).

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Fluent UI Integration Patterns

Overview

Fluent UI extends far beyond standalone React applications. Microsoft's design system is engineered to provide a consistent experience across the entire M365 ecosystem: from Azure AD B2C authentication pages that users encounter before entering an app, through Office Add-in task panes embedded in Excel, Word, and Outlook, to SharePoint Framework web parts running inside SharePoint Online. This skill covers the patterns, constraints, and best practices for integrating Fluent UI into each of these contexts.

Key integration surfaces covered:

Azure AD B2C — Custom HTML templates with Fluent design tokens for branded sign-in, sign-up, and password reset flows
Office Add-ins — Fluent React components inside task panes, content panes, and dialog boxes within Excel, Word, Outlook, and PowerPoint
SharePoint / M365 — SPFx web parts using Fluent v9, theme token bridging from SharePoint themes, and embedded Fluent apps
Navigation patterns — Nav, Drawer, and NavDrawer patterns for building app shells with responsive sidebar navigation

Azure AD B2C UI Customization

Azure AD B2C user flows and custom policies render HTML pages for authentication steps: sign-in, sign-up, profile editing, and password reset. You can fully customize the HTML/CSS of these pages to match your Fluent-based application, providing users with a seamless visual transition from authentication into the app.

Custom HTML Templates

B2C pages load a custom HTML template from a CORS-enabled endpoint (Azure Blob Storage or a CDN). The template contains a <div id="api"> element where B2C injects its form controls.

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Sign In — Contoso</title>
  <link rel="stylesheet" href="https://your-cdn.com/b2c-fluent.css" />
</head>
<body>
  <div class="b2c-page-container">
    <div class="b2c-branding-panel">
      <img src="https://your-cdn.com/logo.svg" alt="Contoso" class="b2c-logo" />
      <h1 class="b2c-heading">Welcome to Contoso</h1>
      <p class="b2c-subheading">Sign in to continue</p>
    </div>
    <div class="b2c-form-panel">
      <!-- B2C injects its controls here -->
      <div id="api"></div>
    </div>
  </div>
</body>
</html>

Applying Fluent Design Tokens to B2C Pages

Since B2C pages run outside your React app, you cannot use FluentProvider. Instead, map Fluent design token values to CSS custom properties and apply them to B2C-injected elements.

:root {
  /* Fluent token values applied as CSS custom properties */
  --b2c-brand-primary: #0f6cbd;          /* colorBrandBackground */
  --b2c-brand-hover: #115ea3;            /* colorBrandBackgroundHover */
  --b2c-brand-pressed: #0c3b5e;          /* colorBrandBackgroundPressed */
  --b2c-text-primary: #242424;           /* colorNeutralForeground1 */
  --b2c-text-secondary: #616161;         /* colorNeutralForeground2 */
  --b2c-bg-page: #fafafa;               /* colorNeutralBackground2 */
  --b2c-bg-card: #ffffff;               /* colorNeutralBackground1 */
  --b2c-border-default: #d1d1d1;        /* colorNeutralStroke1 */
  --b2c-border-focus: #0f6cbd;          /* colorBrandStroke1 */
  --b2c-border-radius: 4px;             /* borderRadiusMedium */
  --b2c-font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --b2c-font-size-base: 14px;           /* fontSizeBase300 */
  --b2c-font-size-heading: 24px;        /* fontSizeBase600 */
  --b2c-font-weight-semibold: 600;      /* fontWeightSemibold */
  --b2c-shadow-card: 0 2px 4px rgba(0,0,0,0.14), 0 0 2px rgba(0,0,0,0.12);
}

Styling B2C-Injected Elements

B2C injects elements with specific class names. Target them to apply Fluent styling:

/* Text inputs */
#api .entry .entry-item input[type="email"],
#api .entry .entry-item input[type="password"],
#api .entry .entry-item input[type="text"] {
  font-family: var(--b2c-font-family);
  font-size: var(--b2c-font-size-base);
  color: var(--b2c-text-primary);
  border: 1px solid var(--b2c-border-default);
  border-radius: var(--b2c-border-radius);
  padding: 5px 12px;
  height: 32px;
  outline: none;
  transition: border-color 0.1s ease;
}

#api .entry .entry-item input:focus {
  border-color: var(--b2c-border-focus);
  border-width: 2px;
  padding: 4px 11px; /* compensate for thicker border */
}

/* Primary button (Sign in) */
#api .buttons button#next {
  background-color: var(--b2c-brand-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--b2c-border-radius);
  padding: 5px 20px;
  min-height: 32px;
  font-family: var(--b2c-font-family);
  font-size: var(--b2c-font-size-base);
  font-weight: var(--b2c-font-weight-semibold);
  cursor: pointer;
  transition: background-color 0.1s ease;
}

#api .buttons button#next:hover {
  background-color: var(--b2c-brand-hover);
}

#api .buttons button#next:active {
  background-color: var(--b2c-brand-pressed);
}

Page Layout Templates

B2C supports several page layout templates. The most commonly customized:

Page type	Template ID	Use case
Unified sign-in/sign-up	`selfAsserted`	Combined sign-in and sign-up
Sign-in only	`signIn`	Traditional sign-in page
Sign-up only	`localAccountSignUp`	Registration page
Password reset	`selfAsserted`	Forgot password flow
MFA	`multiFactor`	Second-factor verification
Error	`exception`	Error display page

Custom Policy Integration

For advanced scenarios, custom policies (Identity Experience Framework) allow full control:

<ContentDefinition Id="api.signuporsignin">
  <LoadUri>https://your-cdn.com/b2c-templates/unified.html</LoadUri>
  <RecoveryUri>~/common/default_page_error.html</RecoveryUri>
  <DataUri>urn:com:microsoft:aad:b2c:elements:contract:unifiedssp:2.1.7</DataUri>
</ContentDefinition>

References

Customize the user interface: https://learn.microsoft.com/en-us/azure/active-directory-b2c/customize-ui
Customize with HTML: https://learn.microsoft.com/en-us/azure/active-directory-b2c/customize-ui-with-html
Custom policy overview: https://learn.microsoft.com/en-us/azure/active-directory-b2c/custom-policy-overview

Office Add-ins with Fluent UI

Office Add-ins run inside a web container (task pane, content area, or dialog) within Excel, Word, Outlook, and PowerPoint. Fluent UI React v9 is the recommended component library for building add-in UIs that feel native to Office.

Yo Office Generator Setup

The Yo Office generator scaffolds an Office Add-in project with Fluent UI pre-configured:

# Install the generator
npm install -g yo generator-office

# Scaffold a new add-in with React + Fluent UI
yo office --projectType taskpane --framework react --host excel --name my-excel-addin

Available --host values: excel, word, outlook, powerpoint, onenote.

Task Pane Constraints

Task panes have strict dimension constraints that vary by host application:

Host	Min width	Default width	Max width	Min height
Excel	320px	350px	~50% of window	150px
Word	320px	350px	~50% of window	150px
Outlook (read)	320px	350px	~50% of window	150px
Outlook (compose)	320px	396px	~50% of window	150px
PowerPoint	320px	350px	~50% of window	150px

Design implications:

Use single-column layouts at 320px
Use compact component sizes (size="small")
Avoid horizontal scrolling
Stack form fields vertically
Use Drawer or Dialog for secondary content rather than side-by-side panels

FluentProvider in Add-in Context

Set up FluentProvider as the root wrapper in the task pane entry point:

// src/taskpane/index.tsx
import React from "react";
import { createRoot } from "react-dom/client";
import { FluentProvider, webLightTheme, webDarkTheme } from "@fluentui/react-components";
import { App } from "./App";

// Detect Office theme
function getOfficeTheme(): "light" | "dark" {
  if (Office.context?.officeTheme) {
    const bg = Office.context.officeTheme.bodyBackgroundColor;
    // Dark theme backgrounds have low luminance
    const r = parseInt(bg.slice(1, 3), 16);
    const g = parseInt(bg.slice(3, 5), 16);
    const b = parseInt(bg.slice(5, 7), 16);
    const luminance = (0.299 * r + 0.587 * g + 0.114 * b) / 255;
    return luminance < 0.5 ? "dark" : "light";
  }
  return "light";
}

Office.onReady(() => {
  const root = createRoot(document.getElementById("container")!);
  const theme = getOfficeTheme() === "dark" ? webDarkTheme : webLightTheme;

  root.render(
    <FluentProvider theme={theme} style={{ height: "100vh" }}>
      <App />
    </FluentProvider>
  );
});

Office.js + Fluent Component Interaction

Fluent components trigger Office.js API calls through event handlers:

import { Button, Input, Field, Spinner } from "@fluentui/react-components";
import { useCallback, useState } from "react";

export function ExcelWriter() {
  const [value, setValue] = useState("");
  const [loading, setLoading] = useState(false);

  const writeToCell = useCallback(async () => {
    setLoading(true);
    try {
      await Excel.run(async (context) => {
        const range = context.workbook.getSelectedRange();
        range.values = [[value]];
        await context.sync();
      });
    } finally {
      setLoading(false);
    }
  }, [value]);

  return (
    <div style={{ padding: "16px" }}>
      <Field label="Value to write">
        <Input value={value} onChange={(_, d) => setValue(d.value)} size="small" />
      </Field>
      <Button
        appearance="primary"
        size="small"
        onClick={writeToCell}
        disabled={loading}
        icon={loading ? <Spinner size="tiny" /> : undefined}
        style={{ marginTop: "8px" }}
      >
        Write to Selected Cell
      </Button>
    </div>
  );
}

References

Fluent React quickstart for Office Add-ins: https://learn.microsoft.com/en-us/office/dev/add-ins/quickstarts/fluent-react-quickstart
Office Add-in task pane: https://learn.microsoft.com/en-us/office/dev/add-ins/design/task-pane-add-ins
Office.js API reference: https://learn.microsoft.com/en-us/javascript/api/overview

SharePoint / M365 Integration

SPFx Web Parts with Fluent v9

SharePoint Framework (SPFx) web parts can use Fluent UI React v9. SPFx 1.18+ ships with React 17 and supports Fluent v9 components.

# Install Fluent v9 in an SPFx project
npm install @fluentui/react-components @fluentui/react-icons

FluentProvider in SPFx

SPFx web parts render inside a shadow-free DOM container. Wrap the web part root in FluentProvider and map the SharePoint theme:

// src/webparts/myWebPart/components/MyWebPart.tsx
import { FluentProvider, createLightTheme, createDarkTheme } from "@fluentui/react-components";
import type { BrandVariants } from "@fluentui/react-components";
import type { IReadonlyTheme } from "@microsoft/sp-component-base";

interface IMyWebPartProps {
  spTheme: IReadonlyTheme | undefined;
}

function mapSharePointTheme(spTheme: IReadonlyTheme | undefined) {
  if (!spTheme) return undefined;

  const primaryColor = spTheme.palette?.themePrimary || "#0078d4";

  // Build brand ramp from SharePoint primary color
  const brand: BrandVariants = {
    10: "#020305", 20: "#111723", 30: "#16263d", 40: "#193253",
    50: "#1b3f6a", 60: "#1b4c82", 70: "#18599b", 80: primaryColor,
    90: "#3a96dd", 100: "#5ca5e4", 110: "#7ab3ea", 120: "#96c2f0",
    130: "#b0d1f5", 140: "#c9e0f9", 150: "#e0effc", 160: "#f5f9fe",
  };

  const isDark = spTheme.isInverted;
  return isDark ? createDarkTheme(brand) : createLightTheme(brand);
}

export function MyWebPart({ spTheme }: IMyWebPartProps) {
  const fluentTheme = mapSharePointTheme(spTheme);

  return (
    <FluentProvider theme={fluentTheme}>
      {/* Web part content */}
    </FluentProvider>
  );
}

SharePoint Theme Token Mapping

SharePoint exposes theme colors through IReadonlyTheme. Key mappings to Fluent tokens:

SharePoint token	Fluent token	Usage
`palette.themePrimary`	`colorBrandBackground`	Primary actions
`palette.neutralPrimary`	`colorNeutralForeground1`	Body text
`palette.neutralLight`	`colorNeutralBackground3`	Subtle backgrounds
`palette.white`	`colorNeutralBackground1`	Page background
`palette.neutralDark`	`colorNeutralForeground1`	Headings
`semanticColors.bodyText`	`colorNeutralForeground1`	Default text
`semanticColors.link`	`colorBrandForegroundLink`	Hyperlinks
`semanticColors.errorText`	`colorPaletteRedForeground1`	Error messages

Embedded Fluent Apps in SharePoint

For full-page Fluent applications embedded in SharePoint, use the single-part app page layout:

// In the web part manifest
{
  "supportsFullBleed": true  // Enables full-width rendering
}

This removes the SharePoint chrome around the web part, allowing a full Fluent app shell experience with its own navigation.

Navigation Patterns

Fluent UI provides Nav, Drawer, and combined NavDrawer patterns for building application navigation.

Nav Component

The Nav component renders a vertical navigation list with hierarchical items, selection tracking, and category grouping.

import { Nav, NavItem, NavCategory, NavCategoryItem, NavSubItemGroup, NavSubItem } from "@fluentui/react-nav-preview";
import { Home24Regular, Settings24Regular, Document24Regular } from "@fluentui/react-icons";

export function AppNav() {
  return (
    <Nav defaultSelectedValue="home">
      <NavItem value="home" icon={<Home24Regular />}>
        Home
      </NavItem>
      <NavCategory value="documents">
        <NavCategoryItem icon={<Document24Regular />}>Documents</NavCategoryItem>
        <NavSubItemGroup>
          <NavSubItem value="recent">Recent</NavSubItem>
          <NavSubItem value="shared">Shared with me</NavSubItem>
        </NavSubItemGroup>
      </NavCategory>
      <NavItem value="settings" icon={<Settings24Regular />}>
        Settings
      </NavItem>
    </Nav>
  );
}

Reference: https://fluent2.microsoft.design/components/web/react/core/nav/usage

Drawer Component

The Drawer provides a panel that slides in from the edge of the screen. It supports inline (pushes content) and overlay (covers content) modes.

import { Drawer, DrawerBody, DrawerHeader, DrawerHeaderTitle } from "@fluentui/react-drawer";
import { Button } from "@fluentui/react-components";
import { Dismiss24Regular } from "@fluentui/react-icons";

export function SidePanel({ open, onClose }: { open: boolean; onClose: () => void }) {
  return (
    <Drawer open={open} type="overlay" position="start" onOpenChange={(_, { open }) => !open && onClose()}>
      <DrawerHeader>
        <DrawerHeaderTitle
          action={<Button appearance="subtle" icon={<Dismiss24Regular />} onClick={onClose} />}
        >
          Navigation
        </DrawerHeaderTitle>
      </DrawerHeader>
      <DrawerBody>
        {/* Navigation content */}
      </DrawerBody>
    </Drawer>
  );
}

Reference: https://fluent2.microsoft.design/components/web/react/core/drawer/usage

NavDrawer Pattern

The NavDrawer combines Nav inside a Drawer for a complete sidebar navigation experience. This is the recommended pattern for M365-style app shells.

import { NavDrawer, NavDrawerBody, NavDrawerHeader, NavItem, NavCategory, NavCategoryItem, NavSubItemGroup, NavSubItem } from "@fluentui/react-nav-preview";
import { Hamburger24Regular } from "@fluentui/react-icons";

export function AppShell() {
  const [open, setOpen] = useState(true);

  return (
    <div style={{ display: "flex", height: "100vh" }}>
      <NavDrawer open={open} type="inline" size="medium">
        <NavDrawerHeader>
          <Button
            appearance="subtle"
            icon={<Hamburger24Regular />}
            onClick={() => setOpen(!open)}
          />
        </NavDrawerHeader>
        <NavDrawerBody>
          <Nav defaultSelectedValue="home">
            <NavItem value="home">Home</NavItem>
            <NavItem value="tasks">Tasks</NavItem>
            <NavCategory value="reports">
              <NavCategoryItem>Reports</NavCategoryItem>
              <NavSubItemGroup>
                <NavSubItem value="weekly">Weekly</NavSubItem>
                <NavSubItem value="monthly">Monthly</NavSubItem>
              </NavSubItemGroup>
            </NavCategory>
          </Nav>
        </NavDrawerBody>
      </NavDrawer>
      <main style={{ flex: 1, overflow: "auto" }}>
        {/* Page content */}
      </main>
    </div>
  );
}

Responsive Navigation

A common pattern is to switch between inline Nav (desktop) and overlay Drawer (mobile):

import { useMediaQuery } from "./hooks/useMediaQuery";

export function ResponsiveNav() {
  const isMobile = useMediaQuery("(max-width: 768px)");
  const [drawerOpen, setDrawerOpen] = useState(!isMobile);

  return (
    <div style={{ display: "flex", height: "100vh" }}>
      {isMobile && (
        <Button
          appearance="subtle"
          icon={<Navigation24Regular />}
          onClick={() => setDrawerOpen(true)}
          style={{ position: "fixed", top: 8, left: 8, zIndex: 1000 }}
        />
      )}
      <NavDrawer
        open={drawerOpen}
        type={isMobile ? "overlay" : "inline"}
        size="medium"
        onOpenChange={(_, { open }) => {
          if (isMobile) setDrawerOpen(open);
        }}
      >
        <NavDrawerBody>
          <Nav>
            <NavItem value="home">Home</NavItem>
            <NavItem value="dashboard">Dashboard</NavItem>
            <NavItem value="settings">Settings</NavItem>
          </Nav>
        </NavDrawerBody>
      </NavDrawer>
      <main style={{ flex: 1, overflow: "auto", padding: isMobile ? "48px 16px 16px" : "16px 24px" }}>
        {/* Content */}
      </main>
    </div>
  );
}

The useMediaQuery hook:

function useMediaQuery(query: string): boolean {
  const [matches, setMatches] = useState(() => window.matchMedia(query).matches);

  useEffect(() => {
    const mql = window.matchMedia(query);
    const handler = (e: MediaQueryListEvent) => setMatches(e.matches);
    mql.addEventListener("change", handler);
    return () => mql.removeEventListener("change", handler);
  }, [query]);

  return matches;
}

Cross-References

Topic	Skill
Core design tokens, color, typography, components	`fluent-design-system`
Next.js integration (SSR, App Router)	`fluent-nextjs`
Custom components and theme extensibility	`fluent-extensibility`
Griffel styling engine (makeStyles, mergeClasses)	`fluent-griffel`
Form components and validation	`fluent-forms`
Web Components (non-React)	`fluent-web-components`
Charting and data visualization	`fluent-charting`
Cross-platform (React Native, MAUI)	`fluent-cross-platform`

Quick Decision Guide

Scenario	Approach
B2C sign-in pages	Custom HTML + CSS with Fluent token values; no React
Office Add-in task pane	Full Fluent React v9 with FluentProvider; small/compact sizes
SPFx web part	Fluent React v9 with SharePoint theme mapping
Full-page SharePoint app	SPFx full-bleed web part with NavDrawer app shell
Embedded iframe in M365	Fluent React v9 with postMessage theme sync
Teams tab (personal/channel)	See `fluent-design-system` Teams theming section

name	Fluent UI Integration Patterns
description	Integrating Fluent UI with Azure AD B2C custom UI, Office Add-ins (Excel, Word, Outlook task panes), SharePoint/M365 web apps, and navigation patterns (Nav, Drawer components).
allowed-tools	["Read","Write","Edit","Glob","Grep","Bash"]
triggers	["b2c fluent","b2c ui customization","office addin fluent","word addin","excel addin","outlook addin","sharepoint fluent","fluent office","fluent b2c","azure ad b2c ui","office add-in fluent","fluent task pane","fluent addin"]

name	Fluent UI Integration Patterns
description	Integrating Fluent UI with Azure AD B2C custom UI, Office Add-ins (Excel, Word, Outlook task panes), SharePoint/M365 web apps, and navigation patterns (Nav, Drawer components).
allowed-tools	["Read","Write","Edit","Glob","Grep","Bash"]
triggers	["b2c fluent","b2c ui customization","office addin fluent","word addin","excel addin","outlook addin","sharepoint fluent","fluent office","fluent b2c","azure ad b2c ui","office add-in fluent","fluent task pane","fluent addin"]

fluent-ui-integration-patterns

同仓库更多 Skills

同仓库更多 Skills

Fluent UI Integration Patterns

Overview

Azure AD B2C UI Customization

Custom HTML Templates

Applying Fluent Design Tokens to B2C Pages

Styling B2C-Injected Elements

Page Layout Templates

Custom Policy Integration

References

Office Add-ins with Fluent UI

Yo Office Generator Setup

Task Pane Constraints

FluentProvider in Add-in Context

Office.js + Fluent Component Interaction

References

SharePoint / M365 Integration

SPFx Web Parts with Fluent v9

FluentProvider in SPFx

SharePoint Theme Token Mapping

Embedded Fluent Apps in SharePoint

Navigation Patterns

Nav Component

Drawer Component

NavDrawer Pattern

Responsive Navigation

Cross-References

Quick Decision Guide

Fluent UI Integration Patterns

Overview

Azure AD B2C UI Customization

Custom HTML Templates

Applying Fluent Design Tokens to B2C Pages

Styling B2C-Injected Elements

Page Layout Templates

Custom Policy Integration

References

Office Add-ins with Fluent UI

Yo Office Generator Setup

Task Pane Constraints

FluentProvider in Add-in Context

Office.js + Fluent Component Interaction

References

SharePoint / M365 Integration

SPFx Web Parts with Fluent v9

FluentProvider in SPFx

SharePoint Theme Token Mapping

Embedded Fluent Apps in SharePoint

Navigation Patterns

Nav Component

Drawer Component

NavDrawer Pattern

Responsive Navigation

Cross-References

Quick Decision Guide