| 1 | using System.Runtime.InteropServices; |
| 2 | using System.Runtime.Versioning; |
| 3 | using Avalonia.Controls; |
| 4 | using Avalonia.Platform; |
| 5 | using CascadeIDE.Features.Editor.Application.Monaco; |
| 6 | using Microsoft.Web.WebView2.Core; |
| 7 | |
| 8 | namespace CascadeIDE.Features.Editor.Presentation; |
| 9 | |
| 10 | /// <summary>Maps vendored cide-editor assets to a https virtual host (WebView2 file:// breaks Monaco AMD).</summary> |
| 11 | internal static class MonacoEditorWebViewBootstrap |
| 12 | { |
| 13 | private const int VkP = 0x50; |
| 14 | private const int VkControl = 0x11; |
| 15 | |
| 16 | public static bool TryMapVirtualHost(NativeWebView webView) => |
| 17 | TryConfigure(webView, onHostShortcut: null); |
| 18 | |
| 19 | public static bool TryConfigure(NativeWebView webView, Action<string>? onHostShortcut) |
| 20 | { |
| 21 | if (!OperatingSystem.IsWindows()) |
| 22 | return false; |
| 23 | |
| 24 | return TryConfigureWindows(webView, onHostShortcut); |
| 25 | } |
| 26 | |
| 27 | [SupportedOSPlatform("windows")] |
| 28 | private static bool TryConfigureWindows(NativeWebView webView, Action<string>? onHostShortcut) |
| 29 | { |
| 30 | if (webView.TryGetPlatformHandle() is not IWindowsWebView2PlatformHandle win) |
| 31 | return false; |
| 32 | |
| 33 | var core = TryGetCoreWebView2(win); |
| 34 | if (core is null) |
| 35 | return false; |
| 36 | |
| 37 | var root = MonacoEditorAssetLocator.GetCideEditorRoot(); |
| 38 | if (!Directory.Exists(root)) |
| 39 | return false; |
| 40 | |
| 41 | core.SetVirtualHostNameToFolderMapping( |
| 42 | MonacoEditorAssetLocator.VirtualHostName, |
| 43 | root, |
| 44 | CoreWebView2HostResourceAccessKind.Allow); |
| 45 | |
| 46 | if (onHostShortcut is not null |
| 47 | && TryGetCoreWebView2Controller(win) is { } controller) |
| 48 | { |
| 49 | core.Settings.AreBrowserAcceleratorKeysEnabled = false; |
| 50 | controller.AcceleratorKeyPressed += (_, e) => |
| 51 | { |
| 52 | if (!IsCtrlPKeyDown(e)) |
| 53 | return; |
| 54 | |
| 55 | e.Handled = true; |
| 56 | onHostShortcut("workspace_go_to_file"); |
| 57 | }; |
| 58 | } |
| 59 | |
| 60 | return true; |
| 61 | } |
| 62 | |
| 63 | [SupportedOSPlatform("windows")] |
| 64 | private static bool IsCtrlPKeyDown(CoreWebView2AcceleratorKeyPressedEventArgs e) |
| 65 | { |
| 66 | if (e.VirtualKey != VkP) |
| 67 | return false; |
| 68 | |
| 69 | if (e.PhysicalKeyStatus.IsKeyReleased != 0) |
| 70 | return false; |
| 71 | |
| 72 | var lParam = e.KeyEventLParam; |
| 73 | if ((lParam & (1 << 31)) != 0) |
| 74 | return false; |
| 75 | |
| 76 | if ((lParam & (1 << 30)) != 0) |
| 77 | return false; |
| 78 | |
| 79 | return (GetKeyState(VkControl) & 0x8000) != 0; |
| 80 | } |
| 81 | |
| 82 | [DllImport("user32.dll")] |
| 83 | private static extern short GetKeyState(int nVirtKey); |
| 84 | |
| 85 | [SupportedOSPlatform("windows")] |
| 86 | private static CoreWebView2? TryGetCoreWebView2(IWindowsWebView2PlatformHandle handle) |
| 87 | { |
| 88 | if (handle.CoreWebView2 == IntPtr.Zero) |
| 89 | return null; |
| 90 | |
| 91 | try |
| 92 | { |
| 93 | return (CoreWebView2)Marshal.GetObjectForIUnknown(handle.CoreWebView2); |
| 94 | } |
| 95 | catch (Exception ex) |
| 96 | { |
| 97 | System.Diagnostics.Debug.WriteLine("Monaco CoreWebView2: " + ex.Message); |
| 98 | return null; |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | [SupportedOSPlatform("windows")] |
| 103 | private static CoreWebView2Controller? TryGetCoreWebView2Controller(IWindowsWebView2PlatformHandle handle) |
| 104 | { |
| 105 | if (handle.CoreWebView2Controller == IntPtr.Zero) |
| 106 | return null; |
| 107 | |
| 108 | try |
| 109 | { |
| 110 | return (CoreWebView2Controller)Marshal.GetObjectForIUnknown(handle.CoreWebView2Controller); |
| 111 | } |
| 112 | catch (Exception ex) |
| 113 | { |
| 114 | System.Diagnostics.Debug.WriteLine("Monaco CoreWebView2Controller: " + ex.Message); |
| 115 | return null; |
| 116 | } |
| 117 | } |
| 118 | } |
| 119 | |