实现iOS平台 uts-get-native-view插件逻辑

pages/component/web-view/web-view.uvue

@@ -119,6 +119,8 @@
       },
       load(event : UniWebViewLoadEvent) {
         console.log(JSON.stringify(event.detail));
+        this.canGoBack = canWebViewGoBack('web-view');
+        this.canGoForward = canWebViewGoForward('web-view');
         if (this.autoTest) {
           this.eventLoad = {
             "tagName": event.target?.tagName,

uni_modules/uts-get-native-view/utssdk/app-ios/DCGetElementByID.swift

+//
+//  DCUni.swift
+//  DCGetElementByID
+//
+//  Created by DCloud-iOS-XHY on 2024/7/8.
+//
+
+import DCloudUniappRuntime
+
+public class DCGetElementByID {
+    /// 返回一个匹配特定 ID 的元素， 如果不存在，返回 null 规则同 https://doc.dcloud.net.cn/uni-app-x/api/get-element.html#getelementbyid
+    public static func dcGetElementById(_ id: String) -> UniElement? {
+        let appManager = UniSDKEngine.self.getAppManager()
+        if let app = appManager.getCurretApp(),
+           let pageManager = app.pageManager as? UniPageManagerImpl,
+           let page = pageManager.getTopPage(),
+           let domManager = page.document as? UniDomManager {
+            return domManager.getElementById(id)
+        }
+        return nil
+    }
+}

uni_modules/uts-get-native-view/utssdk/app-ios/index.uts

+import { CanWebViewGoBack, CanWebViewGoForward } from "../interface";
+import { WKWebView } from 'WebKit';
+
+export const canWebViewGoBack : CanWebViewGoBack = function (elementId : string) : boolean {
+  // const element = uni.getElementById(elementId)
+  const element = DCGetElementByID.dcGetElementById(elementId)
+  const view = element?.getIOSView();
+  if (view != null && view instanceof WKWebView) {
+    return (view! as WKWebView).canGoBack;
+  }
+  return false;
+}
+
+export const canWebViewGoForward : CanWebViewGoForward = function (elementId : string) : boolean {
+  // const element = uni.getElementById(elementId)
+  const element = DCGetElementByID.dcGetElementById(elementId)
+  const view = element?.getIOSView();
+  if (view != null && view instanceof WKWebView) {
+    return (view! as WKWebView).canGoForward;
+  }
+  return false;
+}