feat(h5): SGBridge 定位桥 getLocation()(首页 feed 取经纬度;无桥 mock 北京)

含 H2a 定位授权桥方法 isLocationGranted/requestLocationPermission(原 WIP 一并提交)。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

h5/shared/bridge.js

@@ -124,6 +124,29 @@
     else console.log('[SGBridge mock] closePage');
   }
 
+  /** H5「去授权」→ 触发系统定位权限窗(原生侧永久拒绝跳设置)。结果异步,H5 回前台 visibilitychange 自行重查。 */
+  function requestLocationPermission() {
+    if (hasNative && native.requestLocationPermission) native.requestLocationPermission();
+    else console.log('[SGBridge mock] requestLocationPermission');
+  }
+
+  /** 定位权限是否已授予(FINE/COARSE)。H5 据此切「未授权空态 / feed」。浏览器无原生 → mock 返 true(便于预览 feed)。 */
+  function isLocationGranted() {
+    if (hasNative && native.isLocationGranted) return !!native.isLocationGranted();
+    return true;
+  }
+
+  /** 取设备当前经纬度 → {longitude, latitude};原生拿不到(未授权/无缓存)返 null,浏览器无原生 mock 北京。
+   *  原生侧同步返宿主缓存的 lastLocation(见 SGBridge.kt getLocation);H5 拿到 null 自行落默认坐标。 */
+  function getLocation() {
+    if (hasNative && native.getLocation) {
+      var o = safeParse(native.getLocation(), null);
+      if (o && typeof o.longitude === 'number' && typeof o.latitude === 'number') return o;
+      return null;
+    }
+    return { longitude: 116.404, latitude: 39.928 };
+  }
+
   // ====== 原生 → H5 事件总线 ======
 
   var listeners = {}; // event → [fn]
@@ -153,6 +176,8 @@
     getAppVersion: getAppVersion,
     getInstalledApps: getInstalledApps,
     getCouponClaimedToday: getCouponClaimedToday,
+    isLocationGranted: isLocationGranted,
+    getLocation: getLocation,
     // 动作
     navigate: navigate,
     requestLogin: requestLogin,
@@ -162,6 +187,7 @@
     startCouponClaim: startCouponClaim,
     launchApp: launchApp,
     closePage: closePage,
+    requestLocationPermission: requestLocationPermission,
     // 事件
     on: on,
     _emit: _emit,

tests/test_h5_hosting.py

@@ -47,3 +47,12 @@ def test_h5_home_served(client) -> None:
 def test_h5_home_asset_served(client) -> None:
     resp = client.get("/h5/home/assets/shared/logos/sb-brand.png")
     assert resp.status_code == 200
+
+
+def test_h5_bridge_has_get_location(client) -> None:
+    # H2b: 首页 feed 需经纬度, bridge 暴露同步 getLocation()(无桥 mock 北京)
+    resp = client.get("/h5/shared/bridge.js")
+    assert resp.status_code == 200
+    body = resp.text
+    assert "getLocation" in body
+    assert "116.404" in body and "39.928" in body  # 浏览器 mock 北京兜底