Restore SEBPatch

SafeExamBrowser.Browser/Wrapper/Handlers/DialogHandlerSwitch.cs

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+/*
+ * Copyright (c) 2024 ETH Zürich, IT Services
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using System.Collections.Generic;
+using CefSharp;
+using CefSharp.WinForms;
+using CefSharp.WinForms.Host;
+
+namespace SafeExamBrowser.Browser.Wrapper.Handlers
+{
+	internal class DialogHandlerSwitch : IDialogHandler
+	{
+		public bool OnFileDialog(IWebBrowser webBrowser, IBrowser browser, CefFileDialogMode mode, string title, string defaultFilePath, List<string> acceptFilters, IFileDialogCallback callback)
+		{
+			if (browser.IsPopup)
+			{
+				var control = ChromiumHostControl.FromBrowser(browser) as CefSharpPopupControl;
+
+				control?.OnFileDialog(webBrowser, browser, mode, title, defaultFilePath, acceptFilters, callback);
+			}
+			else
+			{
+				var control = ChromiumWebBrowser.FromBrowser(browser) as CefSharpBrowserControl;
+
+				control?.OnFileDialog(webBrowser, browser, mode, title, defaultFilePath, acceptFilters, callback);
+			}
+
+			return true;
+		}
+	}
+}