124 lines
3.6 KiB
C#
124 lines
3.6 KiB
C#
using System;
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using System.Diagnostics;
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using System.Linq;
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using System.Reflection;
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namespace Ooui
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{
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static class Platform
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{
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static readonly Assembly iosAssembly;
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static readonly Type iosUIViewControllerType;
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static readonly Type iosUIApplicationType;
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static readonly Type iosUIWebViewType;
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static readonly Type iosNSUrl;
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static readonly Type iosNSUrlRequest;
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static Platform ()
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{
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var asms = AppDomain.CurrentDomain.GetAssemblies ().ToDictionary (
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x => x.GetName().Name);
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asms.TryGetValue ("Xamarin.iOS", out iosAssembly);
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if (iosAssembly != null) {
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iosUIViewControllerType = iosAssembly.GetType ("UIKit.UIViewController");
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iosUIApplicationType = iosAssembly.GetType ("UIKit.UIApplication");
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iosUIWebViewType = iosAssembly.GetType ("UIKit.UIWebView");
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iosNSUrl = iosAssembly.GetType ("Foundation.NSUrl");
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iosNSUrlRequest = iosAssembly.GetType ("Foundation.NSUrlRequest");
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}
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}
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public static void OpenBrowser (string url, object presenter)
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{
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if (iosAssembly != null) {
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OpenBrowserOniOS (url, presenter);
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}
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else {
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StartBrowserProcess (url);
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}
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}
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static void OpenBrowserOniOS (string url, object presenter)
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{
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var presenterType = GetObjectType (presenter);
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//
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// Find a presenter view controller
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// 1. Try the given presenter
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// 2. Find the key window vc
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// 3. Create a window?
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//
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object presenterViewController = null;
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if (presenter != null && iosUIViewControllerType.IsAssignableFrom (presenterType)) {
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presenterViewController = presenter;
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}
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if (presenterViewController == null) {
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var app = iosUIApplicationType.GetProperty ("SharedApplication").GetValue (null, null);
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var window = iosUIApplicationType.GetProperty ("KeyWindow").GetValue (app, null);
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if (window != null) {
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var rvc = window.GetType ().GetProperty ("RootViewController").GetValue (window, null);
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if (rvc != null) {
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var pvc = rvc.GetType ().GetProperty ("PresentedViewController").GetValue (rvc, null);
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presenterViewController = pvc ?? rvc;
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}
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}
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}
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if (presenterViewController == null) {
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throw new InvalidOperationException ("Cannot find a view controller from which to present");
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}
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//
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// Create the browser
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//
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var browserVC = Activator.CreateInstance (iosUIViewControllerType);
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var browserV = Activator.CreateInstance (iosUIWebViewType);
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var nsUrl = iosNSUrl.GetMethod ("FromString").Invoke (null, new object[] { url });
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var nsUrlRequest = iosNSUrlRequest.GetMethod ("FromUrl").Invoke (null, new object[] { nsUrl });
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iosUIWebViewType.GetMethod ("LoadRequest").Invoke (browserV, new object[] { nsUrlRequest });
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iosUIViewControllerType.GetProperty ("View").SetValue (browserVC, browserV, null);
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var m = iosUIViewControllerType.GetMethod ("PresentViewController");
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Console.WriteLine (presenterViewController);
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Console.WriteLine (browserVC);
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m.Invoke (presenterViewController, new object[] { browserVC, false, null });
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}
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static Type GetObjectType (object o)
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{
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var t = typeof (object);
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if (o is IReflectableType rt) {
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t = rt.GetTypeInfo ().AsType ();
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}
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else if (o != null) {
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t = o.GetType ();
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}
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return t;
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}
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static Process StartBrowserProcess (string url)
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{
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var cmd = url;
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var args = "";
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var osv = Environment.OSVersion;
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if (osv.Platform == PlatformID.Unix) {
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cmd = "open";
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args = url;
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}
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// var vs = Environment.GetEnvironmentVariables ();
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// foreach (System.Collections.DictionaryEntry kv in vs) {
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// System.Console.WriteLine($"K={kv.Key}, V={kv.Value}");
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// }
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Console.WriteLine ($"Process.Start {cmd} {args}");
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return Process.Start (cmd, args);
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}
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}
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}
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