mirror of
https://github.com/bitwarden/mobile.git
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55 lines
1.9 KiB
C#
55 lines
1.9 KiB
C#
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using System.IO;
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using Foundation;
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using WebKit;
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using Xamarin.Forms;
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using Xamarin.Forms.Platform.iOS;
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using Bit.App.Controls;
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using Bit.iOS.Controls;
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[assembly: ExportRenderer(typeof(HybridWebView), typeof(HybridWebViewRenderer))]
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namespace Bit.iOS.Controls
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{
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public class HybridWebViewRenderer : ViewRenderer<HybridWebView, WKWebView>, IWKScriptMessageHandler
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{
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private const string JSFunction =
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"function invokeCSharpAction(data){window.webkit.messageHandlers.invokeAction.postMessage(data);}";
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private WKUserContentController _userController;
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protected override void OnElementChanged(ElementChangedEventArgs<HybridWebView> e)
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{
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base.OnElementChanged(e);
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if(Control == null)
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{
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_userController = new WKUserContentController();
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var script = new WKUserScript(new NSString(JSFunction), WKUserScriptInjectionTime.AtDocumentEnd, false);
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_userController.AddUserScript(script);
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_userController.AddScriptMessageHandler(this, "invokeAction");
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var config = new WKWebViewConfiguration { UserContentController = _userController };
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var webView = new WKWebView(Frame, config);
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SetNativeControl(webView);
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}
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if(e.OldElement != null)
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{
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_userController.RemoveAllUserScripts();
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_userController.RemoveScriptMessageHandler("invokeAction");
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var hybridWebView = e.OldElement as HybridWebView;
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hybridWebView.Cleanup();
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}
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if(e.NewElement != null)
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{
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Control.LoadRequest(new NSUrlRequest(new NSUrl(Element.Uri, false)));
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}
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}
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public void DidReceiveScriptMessage(WKUserContentController userContentController, WKScriptMessage message)
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{
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Element.InvokeAction(message.Body.ToString());
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}
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}
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}
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