feat: windows support

.github/workflows/build-windows-plugin.yml

@@ -0,0 +1,46 @@
+name: Build Windows Plugin
+
+on:
+  pull_request:
+    paths:
+      - "SDK/Plugins/Windows/**/*.cpp"
+      - "SDK/Plugins/Windows/**/*.h"
+      - "SDK/Plugins/Windows/CMakeLists.txt"
+      - "SDK/Plugins/CMakeLists.txt"
+      - ".github/workflows/build-windows-plugin.yml"
+  push:
+    branches: [main]
+    paths:
+      - "SDK/Plugins/Windows/**/*.cpp"
+      - "SDK/Plugins/Windows/**/*.h"
+      - "SDK/Plugins/Windows/CMakeLists.txt"
+      - "SDK/Plugins/CMakeLists.txt"
+      - ".github/workflows/build-windows-plugin.yml"
+
+jobs:
+  build:
+    name: Build PrivyWebView.dll
+    runs-on: windows-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install WebView2 SDK
+        run: |
+          nuget install Microsoft.Web.WebView2 -OutputDirectory ${{ runner.temp }}/webview2
+
+      - name: Configure CMake
+        run: |
+          $wv2 = Get-ChildItem "${{ runner.temp }}/webview2/Microsoft.Web.WebView2.*" | Select-Object -First 1
+          $wv2Root = "$($wv2.FullName)/build/native"
+          cmake -S SDK/Plugins -B SDK/Plugins/build -G "Visual Studio 17 2022" -A x64 -D WEBVIEW2_ROOT="$wv2Root"
+
+      - name: Build
+        run: cmake --build SDK/Plugins/build --config Release
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: PrivyWebView-windows-x64
+          path: SDK/Plugins/Windows/x86_64/Release/PrivyWebView.dll
+          if-no-files-found: error

.gitignore

@@ -93,5 +93,16 @@ npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
 
+# Build artifact folders for C Windows plugin
+/SDK/Plugins/Windows/**/bin/
+/SDK/Plugins/Windows/**/obj/
+/SDK/Plugins/Windows/**/Debug/
+/SDK/Plugins/Windows/**/Release/*.lib*
+/SDK/Plugins/Windows/**/Release/*.exp*
+/SDK/Plugins/Build*
+
+# Temporary build/test folders
+SampleApp/Test*/
+
 # Environment secrets
 .env

SDK/Plugins/CMakeLists.txt

@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.16)
+project(PrivyWebViewPlugins LANGUAGES C CXX)
+
+if(WIN32 OR CMAKE_SYSTEM_NAME STREQUAL "Windows")
+    add_subdirectory(Windows)
+endif()

SDK/Plugins/Windows/CMakeLists.txt

@@ -0,0 +1,77 @@
+cmake_minimum_required(VERSION 3.16)
+project(PrivyWebViewWindows LANGUAGES CXX)
+
+set(PLUGIN_OUTPUT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/x86_64")
+
+add_library(PrivyWebView SHARED PrivyWebView.cpp)
+
+# Ensure output is placed in the Unity plugin folder
+set_target_properties(PrivyWebView PROPERTIES
+    RUNTIME_OUTPUT_DIRECTORY "${PLUGIN_OUTPUT_DIR}"
+    LIBRARY_OUTPUT_DIRECTORY "${PLUGIN_OUTPUT_DIR}"
+    ARCHIVE_OUTPUT_DIRECTORY "${PLUGIN_OUTPUT_DIR}"
+)
+
+# WebView2 SDK support
+# User can specify WEBVIEW2_ROOT to point to the WebView2 SDK root (contains include/ and lib/)
+if(NOT WEBVIEW2_ROOT)
+    # ProgramFiles(x86) contains parentheses and cannot be referenced directly in CMake variables.
+    # Use cmd to expand it instead.
+    execute_process(COMMAND cmd /c "echo %ProgramFiles(x86)%" OUTPUT_VARIABLE _progfiles_x86 OUTPUT_STRIP_TRAILING_WHITESPACE)
+    execute_process(COMMAND cmd /c "echo %ProgramFiles%" OUTPUT_VARIABLE _progfiles OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+    if(_progfiles_x86)
+        set(_webview2_candidate "${_progfiles_x86}/Microsoft WebView2 SDK")
+    elseif(_progfiles)
+        set(_webview2_candidate "${_progfiles}/Microsoft WebView2 SDK")
+    endif()
+
+    if(_webview2_candidate)
+        set(WEBVIEW2_ROOT "${_webview2_candidate}")
+    endif()
+endif()
+
+# Primary (recommended) include path
+find_path(WEBVIEW2_INCLUDE_DIR WebView2.h
+    PATHS
+        "${WEBVIEW2_ROOT}/include"
+        "${WEBVIEW2_ROOT}/*/include"
+    NO_DEFAULT_PATH
+)
+
+# Primary lib path
+find_library(WEBVIEW2_LIB WebView2LoaderStatic
+    PATHS
+        "${WEBVIEW2_ROOT}/x64"
+        "${WEBVIEW2_ROOT}/x86"
+        "${WEBVIEW2_ROOT}/*/x64"
+        "${WEBVIEW2_ROOT}/*/x86"
+    NO_DEFAULT_PATH
+)
+
+# Fallback: if we still don't find it, check the expected folder layout directly.
+if(NOT WEBVIEW2_INCLUDE_DIR)
+    if(EXISTS "${WEBVIEW2_ROOT}/include/WebView2.h")
+        set(WEBVIEW2_INCLUDE_DIR "${WEBVIEW2_ROOT}/include")
+    endif()
+endif()
+
+if(NOT WEBVIEW2_LIB)
+    if(EXISTS "${WEBVIEW2_ROOT}/x64/WebView2LoaderStatic.lib")
+        set(WEBVIEW2_LIB "${WEBVIEW2_ROOT}/x64/WebView2LoaderStatic.lib")
+    elseif(EXISTS "${WEBVIEW2_ROOT}/x86/WebView2LoaderStatic.lib")
+        set(WEBVIEW2_LIB "${WEBVIEW2_ROOT}/x86/WebView2LoaderStatic.lib")
+    endif()
+endif()
+
+message(STATUS "WebView2 SDK root candidate: ${WEBVIEW2_ROOT}")
+message(STATUS "Searching for WebView2.h under: ${WEBVIEW2_ROOT}/include")
+
+if(WEBVIEW2_INCLUDE_DIR AND WEBVIEW2_LIB)
+    message(STATUS "Found WebView2 include: ${WEBVIEW2_INCLUDE_DIR}")
+    message(STATUS "Found WebView2 lib: ${WEBVIEW2_LIB}")
+    target_include_directories(PrivyWebView PRIVATE "${WEBVIEW2_INCLUDE_DIR}")
+    target_link_libraries(PrivyWebView PRIVATE "${WEBVIEW2_LIB}")
+else()
+    message(FATAL_ERROR "WebView2 SDK not found. Please install WebView2 SDK (https://developer.microsoft.com/microsoft-edge/webview2/) and ensure WebView2.h and WebView2.lib are available. You can also set WEBVIEW2_ROOT to the SDK root folder.")
+endif()