feat: 登录扫一扫

package.json

@@ -19,6 +19,7 @@
     "vue": "^3.4.0",
     "clipboard": "^2.0.11",
     "dayjs": "^1.11.19",
+    "html5-qrcode": "^2.3.8",
     "uview-plus": "^3.6.29"
   }
 }

pages/login/login.vue

@@ -50,6 +50,22 @@
 						<text>扫一扫登录</text>
 					</button>
 				</view>
+			</view>
+		</view>
+
+		<view v-if="showScanner" class="scanner-overlay">
+			<view class="scanner-container">
+				<view class="scanner-header">
+					<text>扫一扫</text>
+					<text class="close-btn" @tap="closeScanner">×</text>
+				</view>
+				<view id="scanner-region" class="scanner-region"></view>
+				<view class="scanner-tip">将二维码放入框内即可自动扫描</view>
+			</view>
+		</view>
+	</view>
+					</button>
+				</view>
 
 				<view class="agreement">
 					<view class="agreement-text">
@@ -65,10 +81,11 @@
 </template>
 
 <script setup>
-	import { ref, onMounted } from 'vue';
+	import { ref, onMounted, onUnmounted } from 'vue';
 	import { authApi } from '@/api/index.js';
 	import { useUserStore } from '@/store/index.js';
 	import { APP_ID, USE_WECHAT_AUTH } from '@/utils/env.js';
+	import { Html5Qrcode } from 'html5-qrcode';
 
 	const userStore = useUserStore();
 
@@ -81,11 +98,19 @@
 		getPathDeviceId();
 	});
 
+	onUnmounted(() => {
+		if (html5QrCode) {
+			html5QrCode.stop().catch(() => {});
+		}
+	});
+
 	const identifier = ref('');
 	const loading = ref(false);
 	const agreed = ref(true);
 	const inputFocus = ref(false);
 	const showError = ref(false);
+	const showScanner = ref(false);
+	let html5QrCode = null;
 
 	const getCode = () => {
 		const params = new URLSearchParams(window.location.search);
@@ -125,35 +150,44 @@
 		doLogin();
 	};
 
-	const handleScanLogin = () => {
-		// #ifdef H5
-		if (typeof wx !== 'undefined' && wx.scanQRCode) {
-			wx.scanQRCode({
-				needResult: 1,
-				scanType: ['qrCode', 'barCode'],
-				success: (res) => {
-					const result = res.resultStr;
-					if (result && result.includes('device_id')) {
-						const match = result.match(/device_id[=]([^&]*)/);
-						if (match && match[1]) {
-							identifier.value = match[1];
-							handleLogin();
-						}
+	const handleScanLogin = async () => {
+		showScanner.value = true;
+
+		try {
+			html5QrCode = new Html5Qrcode('scanner-region');
+			await html5QrCode.start(
+				{ facingMode: 'environment' },
+				{
+					fps: 10,
+					qrbox: { width: 250, height: 250 }
+				},
+				(decodedText) => {
+					const match = decodedText.match(/=([^=]+)$/);
+					if (match && match[1]) {
+						identifier.value = match[1];
+						closeScanner();
+						handleLogin();
 					} else {
 						uni.showToast({ title: '无效的二维码', icon: 'none' });
 					}
 				},
-				fail: () => {
-					uni.showToast({ title: '扫码失败，请重试', icon: 'none' });
-				}
-			});
-		} else {
-			uni.showToast({ title: '扫一扫功能暂不可用', icon: 'none' });
+				() => {}
+			);
+		} catch (err) {
+			console.error('扫码失败', err);
+			uni.showToast({ title: '无法访问摄像头', icon: 'none' });
+			closeScanner();
+		}
+	};
+
+	const closeScanner = async () => {
+		showScanner.value = false;
+		if (html5QrCode) {
+			try {
+				await html5QrCode.stop();
+			} catch (e) {}
+			html5QrCode = null;
 		}
-		// #endif
-		// #ifndef H5
-		uni.showToast({ title: '请在微信中打开', icon: 'none' });
-		// #endif
 	};
 
 	const getPathDeviceId = () => {
@@ -469,4 +503,52 @@
 		font-weight: 500;
 		white-space: nowrap;
 	}
+
+	.scanner-overlay {
+		position: fixed;
+		top: 0;
+		left: 0;
+		right: 0;
+		bottom: 0;
+		background: rgba(0, 0, 0, 0.8);
+		z-index: 999;
+		display: flex;
+		align-items: center;
+		justify-content: center;
+	}
+
+	.scanner-container {
+		width: 600rpx;
+		background: var(--bg-primary);
+		border-radius: var(--radius-large);
+		overflow: hidden;
+	}
+
+	.scanner-header {
+		display: flex;
+		align-items: center;
+		justify-content: space-between;
+		padding: 32rpx;
+		font-size: 32rpx;
+		font-weight: 600;
+		border-bottom: 1rpx solid var(--border-light);
+	}
+
+	.close-btn {
+		font-size: 48rpx;
+		color: var(--text-tertiary);
+		line-height: 1;
+	}
+
+	.scanner-region {
+		width: 100%;
+		height: 600rpx;
+	}
+
+	.scanner-tip {
+		padding: 24rpx;
+		text-align: center;
+		font-size: 26rpx;
+		color: var(--text-tertiary);
+	}
 </style>

utils/wxsdk.js

@@ -0,0 +1,29 @@
+import { BASE_URL, APP_ID } from './env.js';
+
+export const initWxSdk = async () => {
+	if (typeof wx === 'undefined') return false;
+
+	try {
+		const res = await fetch(`${BASE_URL}/api/c/v1/wx/signature?url=${encodeURIComponent(window.location.href)}`);
+		const data = await res.json();
+
+		if (data.code === 200 || data.code === 0) {
+			wx.config({
+				debug: false,
+				appId: APP_ID,
+				timestamp: data.data.timestamp,
+				nonceStr: data.data.nonceStr,
+				signature: data.data.signature,
+				jsApiList: ['scanQRCode']
+			});
+
+			return new Promise((resolve) => {
+				wx.ready(() => resolve(true));
+				wx.error(() => resolve(false));
+			});
+		}
+	} catch (e) {
+		console.error('WX SDK init failed', e);
+	}
+	return false;
+};