Add **Web platform with Emscripten**

2026-02-14 00:07:21 +01:00
parent fd0584b406
commit f12ad5c874
80 changed files with 1529 additions and 61 deletions
--- a/Source/Engine/Platform/SDL/SDLPlatform.Web.cpp
+++ b/Source/Engine/Platform/SDL/SDLPlatform.Web.cpp
@@ -0,0 +1,207 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#if PLATFORM_SDL && PLATFORM_WEB
+
+#include "SDLWindow.h"
+#include "Engine/Platform/MessageBox.h"
+#include "Engine/Core/Log.h"
+#include <SDL3/SDL_messagebox.h>
+#include <SDL3/SDL_error.h>
+
+bool SDLPlatform::InitInternal()
+{
+    return false;
+}
+
+bool SDLPlatform::UsesWindows()
+{
+    return false;
+}
+
+bool SDLPlatform::UsesWayland()
+{
+    return false;
+}
+
+bool SDLPlatform::UsesX11()
+{
+    return false;
+}
+
+void SDLPlatform::PreHandleEvents()
+{
+}
+
+void SDLPlatform::PostHandleEvents()
+{
+}
+
+bool SDLWindow::HandleEventInternal(SDL_Event& event)
+{
+    return false;
+}
+
+void SDLPlatform::SetHighDpiAwarenessEnabled(bool enable)
+{
+}
+
+DragDropEffect SDLWindow::DoDragDrop(const StringView& data)
+{
+    return DragDropEffect::None;
+}
+
+DragDropEffect SDLWindow::DoDragDrop(const StringView& data, const Float2& offset, Window* dragSourceWindow)
+{
+    Show();
+    return DragDropEffect::None;
+}
+
+DialogResult MessageBox::Show(Window* parent, const StringView& text, const StringView& caption, MessageBoxButtons buttons, MessageBoxIcon icon)
+{
+    StringAnsi textAnsi(text);
+    StringAnsi captionAnsi(caption);
+
+    SDL_MessageBoxData data;
+    SDL_MessageBoxButtonData dataButtons[3];
+    data.window = nullptr;
+    data.title = captionAnsi.GetText();
+    data.message = textAnsi.GetText();
+    data.colorScheme = nullptr;
+
+    switch (icon)
+    {
+    case MessageBoxIcon::Error:
+    case MessageBoxIcon::Hand:
+    case MessageBoxIcon::Stop:
+        data.flags |= SDL_MESSAGEBOX_ERROR;
+        break;
+    case MessageBoxIcon::Asterisk:
+    case MessageBoxIcon::Information:
+    case MessageBoxIcon::Question:
+        data.flags |= SDL_MESSAGEBOX_INFORMATION;
+        break;
+    case MessageBoxIcon::Exclamation:
+    case MessageBoxIcon::Warning:
+        data.flags |= SDL_MESSAGEBOX_WARNING;
+        break;
+    default:
+        break;
+    }
+
+    switch (buttons)
+    {
+    case MessageBoxButtons::AbortRetryIgnore:
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::Abort,
+            "Abort"
+        };
+        dataButtons[1] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT,
+            (int)DialogResult::Retry,
+            "Retry"
+        };
+        dataButtons[2] =
+        {
+            0,
+            (int)DialogResult::Ignore,
+            "Ignore"
+        };
+        data.numbuttons = 3;
+        break;
+    case MessageBoxButtons::OK:
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT | SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::OK,
+            "OK"
+        };
+        data.numbuttons = 1;
+        break;
+    case MessageBoxButtons::OKCancel:
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT,
+            (int)DialogResult::OK,
+            "OK"
+        };
+        dataButtons[1] =
+        {
+            SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::Cancel,
+            "Cancel"
+        };
+        data.numbuttons = 2;
+        break;
+    case MessageBoxButtons::RetryCancel:
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT,
+            (int)DialogResult::Retry,
+            "Retry"
+        };
+        dataButtons[1] =
+        {
+            SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::Cancel,
+            "Cancel"
+        };
+        data.numbuttons = 2;
+        break;
+    case MessageBoxButtons::YesNo:
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT,
+            (int)DialogResult::Yes,
+            "Yes"
+        };
+        dataButtons[1] =
+        {
+            SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::No,
+            "No"
+        };
+        data.numbuttons = 2;
+        break;
+    case MessageBoxButtons::YesNoCancel:
+    {
+        dataButtons[0] =
+        {
+            SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT,
+            (int)DialogResult::Yes,
+            "Yes"
+        };
+        dataButtons[1] =
+        {
+            0,
+            (int)DialogResult::No,
+            "No"
+        };
+        dataButtons[2] =
+        {
+            SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT,
+            (int)DialogResult::Cancel,
+            "Cancel"
+        };
+        data.numbuttons = 3;
+        break;
+    }
+    default:
+        break;
+    }
+    data.buttons = dataButtons;
+
+    int result = -1;
+    if (!SDL_ShowMessageBox(&data, &result))
+    {
+        LOG(Error, "Failed to show SDL message box: {0}", String(SDL_GetError()));
+        return DialogResult::Abort;
+    }
+    if (result < 0)
+        return DialogResult::None;
+    return (DialogResult)result;
+}
+
+#endif