Allow usage of static loader with wxWebViewEdge

Add a new build option wxUSE_WEBVIEW_EDGE_STATIC.
If it is set to 1 the WebView2 loader is static linked into the binary
and removes the runtime dependency on WebView2Loader.dll.

build/bakefiles/multilib.bkl

@@ -184,6 +184,22 @@
         <if cond="TOOLKIT=='MSW' and IS_MSVC=='0'">$(TOP_SRCDIR)include/wx/msw/wrl</if>
     </set>
 
+    <set var="webview_additional_libdirs_arch">
+        <if cond="TARGET_CPU=='amd64'">x64</if>
+        <if cond="TARGET_CPU=='AMD64'">x64</if>
+        <if cond="TARGET_CPU=='arm64'">arm64</if>
+        <if cond="TARGET_CPU=='ARM64'">arm64</if>
+        <if cond="TARGET_CPU=='x64'">x64</if>
+        <if cond="TARGET_CPU=='X64'">x64</if>
+        <if cond="TARGET_CPU=='x86'">x86</if>
+        <if cond="TARGET_CPU=='X86'">x86</if>
+        <if cond="TARGET_CPU==''">x86</if>
+    </set>
+
+    <set var="webview_additional_libdirs">
+        <if cond="IS_MSVC=='1' and TOOLKIT=='MSW'">$(TOP_SRCDIR)3rdparty/webview2/build/native/$(webview_additional_libdirs_arch)</if>
+    </set>
+
     <set var="webview_edge_pragma_warning">
         <if cond="TOOLKIT=='MSW' and IS_MSVC=='0'">-Wno-unknown-pragmas</if>
     </set>
@@ -195,6 +211,7 @@
         <sources>$(WEBVIEW_SRC)</sources>
         <library>coredll</library>
         <library>basedll</library>
+        <lib-path>$(webview_additional_libdirs)</lib-path>
         <ldlibs>$(EXTRALIBS_WEBVIEW)</ldlibs>
         <msvc-headers>$(WEBVIEW_HDR)</msvc-headers>
         <include>$(webview_additional_include_wrl)</include>
@@ -208,6 +225,7 @@
         <msvc-headers>$(WEBVIEW_HDR)</msvc-headers>
         <include>$(webview_additional_include_wrl)</include>
         <include>$(webview_additional_include)</include>
+        <lib-path>$(webview_additional_libdirs)</lib-path>
         <cxxflags-mingw>$(webview_edge_pragma_warning)</cxxflags-mingw>
     </lib>
 

build/cmake/lib/webview/CMakeLists.txt

@@ -87,8 +87,13 @@ elseif(WXMSW)
             endif()
         endif()
 
+        if (wxUSE_WEBVIEW_EDGE_STATIC)
+            target_link_directories(wxwebview PUBLIC "${WEBVIEW2_PACKAGE_DIR}/build/native/$(LibrariesArchitecture)/")
+        else()
             wx_webview_copy_webview2_loader(wxwebview)
         endif()
+
+    endif()
 elseif(WXGTK)
     if(LIBSOUP_FOUND)
         wx_lib_include_directories(wxwebview PUBLIC ${LIBSOUP_INCLUDE_DIRS})

build/cmake/options.cmake

@@ -477,6 +477,7 @@ if(WIN32)
     wx_option(wxUSE_TASKBARICON_BALLOONS "enable wxTaskBarIcon::ShowBalloon() method (Win32 only)")
     wx_option(wxUSE_UXTHEME "enable support for Windows XP themed look (Win32 only)")
     wx_option(wxUSE_WEBVIEW_EDGE "use wxWebView Edge (Chromium) backend (Windows 7+ only)" ${wxUSE_WEBVIEW_EDGE_DEFAULT})
+    wx_option(wxUSE_WEBVIEW_EDGE_STATIC "use wxWebView Edge with static loader" OFF)
     wx_option(wxUSE_WEBVIEW_IE "use wxWebView IE backend (Win32 only)")
     wx_option(wxUSE_WINRT "enable WinRT support" ${wxUSE_WINRT_DEFAULT})
     wx_option(wxUSE_WXDIB "use wxDIB class (Win32 only)")

build/cmake/setup.h.in

@@ -332,6 +332,8 @@
 
 #cmakedefine01 wxUSE_WEBVIEW_EDGE
 
+#cmakedefine01 wxUSE_WEBVIEW_EDGE_STATIC
+
 #if (defined(__WXGTK__) && !defined(__WXGTK3__)) || defined(__WXOSX__)
 #cmakedefine01 wxUSE_WEBVIEW_WEBKIT
 #else

build/msw/wx_webview.vcxproj

@@ -350,7 +350,7 @@
       <AdditionalDependencies>wxtiff$(wxSuffixDebug).lib;wxjpeg$(wxSuffixDebug).lib;wxpng$(wxSuffixDebug).lib;wxzlib$(wxSuffixDebug).lib;wxregex$(wxSuffix).lib;wxexpat$(wxSuffixDebug).lib;$(wxToolkitLibNamePrefix)core.lib;$(wxBaseLibNamePrefix).lib;%(AdditionalDependencies)</AdditionalDependencies>
       <ImportLibrary>$(OutDir)$(wxToolkitLibNamePrefix)$(ProjectName).lib</ImportLibrary>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <AdditionalLibraryDirectories>$(OutDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(OutDir);..\..\3rdparty\webview2\build\native\$(LibrariesArchitecture);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
     <Bscmake>
@@ -435,7 +435,7 @@
       <AdditionalDependencies>wxtiff$(wxSuffixDebug).lib;wxjpeg$(wxSuffixDebug).lib;wxpng$(wxSuffixDebug).lib;wxzlib$(wxSuffixDebug).lib;wxregex$(wxSuffix).lib;wxexpat$(wxSuffixDebug).lib;$(wxToolkitLibNamePrefix)core.lib;$(wxBaseLibNamePrefix).lib;%(AdditionalDependencies)</AdditionalDependencies>
       <ImportLibrary>$(OutDir)$(wxToolkitLibNamePrefix)$(ProjectName).lib</ImportLibrary>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <AdditionalLibraryDirectories>$(OutDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(OutDir);..\..\3rdparty\webview2\build\native\$(LibrariesArchitecture);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <GenerateDebugInformation>false</GenerateDebugInformation>
       <OptimizeReferences>true</OptimizeReferences>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>

include/wx/android/setup.h

@@ -802,6 +802,13 @@
 // Recommended setting: 1 when building for Windows with WebView2 SDK
 #define wxUSE_WEBVIEW_EDGE 0
 
+// Use the Edge (Chromium) wxWebView backend without loader DLL
+//
+// Default is 0, set it to 1 if you don't want to depend on WebView2Loader.dll.
+//
+// Recommended setting: 0
+#define wxUSE_WEBVIEW_EDGE_STATIC 0
+
 // Use the WebKit wxWebView backend
 //
 // Default is 1 on GTK and OSX

include/wx/gtk/setup.h

@@ -803,6 +803,13 @@
 // Recommended setting: 1 when building for Windows with WebView2 SDK
 #define wxUSE_WEBVIEW_EDGE 0
 
+// Use the Edge (Chromium) wxWebView backend without loader DLL
+//
+// Default is 0, set it to 1 if you don't want to depend on WebView2Loader.dll.
+//
+// Recommended setting: 0
+#define wxUSE_WEBVIEW_EDGE_STATIC 0
+
 // Use the WebKit wxWebView backend
 //
 // Default is 1 on GTK and OSX

include/wx/motif/setup.h

@@ -803,6 +803,13 @@
 // Recommended setting: 1 when building for Windows with WebView2 SDK
 #define wxUSE_WEBVIEW_EDGE 0
 
+// Use the Edge (Chromium) wxWebView backend without loader DLL
+//
+// Default is 0, set it to 1 if you don't want to depend on WebView2Loader.dll.
+//
+// Recommended setting: 0
+#define wxUSE_WEBVIEW_EDGE_STATIC 0
+
 // Use the WebKit wxWebView backend
 //
 // Default is 1 on GTK and OSX

include/wx/msw/private/webview_edge.h

@@ -10,7 +10,9 @@
 #ifndef wxWebViewEdge_PRIVATE_H
 #define wxWebViewEdge_PRIVATE_H
 
+#if !wxUSE_WEBVIEW_EDGE_STATIC
 #include "wx/dynlib.h"
+#endif
 #include "wx/msw/private/comptr.h"
 
 #include <WebView2.h>
@@ -98,7 +100,9 @@ public:
 
     void UpdateWebMessageHandler();
 
+#if !wxUSE_WEBVIEW_EDGE_STATIC
     static wxDynamicLibrary ms_loaderDll;
+#endif
     static wxString ms_browserExecutableDir;
 
     static bool Initialize();

include/wx/osx/setup.h

@@ -809,6 +809,13 @@
 // Recommended setting: 1 when building for Windows with WebView2 SDK
 #define wxUSE_WEBVIEW_EDGE 0
 
+// Use the Edge (Chromium) wxWebView backend without loader DLL
+//
+// Default is 0, set it to 1 if you don't want to depend on WebView2Loader.dll.
+//
+// Recommended setting: 0
+#define wxUSE_WEBVIEW_EDGE_STATIC 0
+
 // Use the WebKit wxWebView backend
 //
 // Default is 1 on GTK and OSX

include/wx/setup_inc.h

@@ -799,6 +799,13 @@
 // Recommended setting: 1 when building for Windows with WebView2 SDK
 #define wxUSE_WEBVIEW_EDGE 0
 
+// Use the Edge (Chromium) wxWebView backend without loader DLL
+//
+// Default is 0, set it to 1 if you don't want to depend on WebView2Loader.dll.
+//
+// Recommended setting: 0
+#define wxUSE_WEBVIEW_EDGE_STATIC 0
+
 // Use the WebKit wxWebView backend
 //
 // Default is 1 on GTK and OSX

include/wx/univ/setup.h

@@ -802,6 +802,13 @@
 // Recommended setting: 1 when building for Windows with WebView2 SDK
 #define wxUSE_WEBVIEW_EDGE 0
 
+// Use the Edge (Chromium) wxWebView backend without loader DLL
+//
+// Default is 0, set it to 1 if you don't want to depend on WebView2Loader.dll.
+//
+// Recommended setting: 0
+#define wxUSE_WEBVIEW_EDGE_STATIC 0
+
 // Use the WebKit wxWebView backend
 //
 // Default is 1 on GTK and OSX

interface/wx/webview.h

@@ -362,6 +362,9 @@ public:
       loaded and Edge (Chromium) is installed)
     - Make sure to add a note about using the WebView2 SDK to your application
       documentation, as required by its licence
+    - With Visual Studio 2019 or newer @c wxUSE_WEBVIEW_EDGE_STATIC can be used
+      to static link the loader and remove the dependency on @c WebView2Loader.dll
+      at runtime.
 
     If enabled and available at runtime Edge will be selected as the default
     backend. If you require the IE backend use @c wxWebViewBackendIE when

setup.h.in

@@ -332,6 +332,8 @@
 
 #define wxUSE_WEBVIEW_EDGE 0
 
+#define wxUSE_WEBVIEW_EDGE_STATIC 0
+
 #if (defined(__WXGTK__) && !defined(__WXGTK3__)) || defined(__WXOSX__)
 #define wxUSE_WEBVIEW_WEBKIT 0
 #else

src/msw/webview_edge.cpp

@@ -42,6 +42,13 @@ wxIMPLEMENT_DYNAMIC_CLASS(wxWebViewEdge, wxWebView);
             event.SetInt(wxerror); \
             break;
 
+#if wxUSE_WEBVIEW_EDGE_STATIC
+    #define wxCreateCoreWebView2EnvironmentWithOptions ::CreateCoreWebView2EnvironmentWithOptions
+    #define wxGetAvailableCoreWebView2BrowserVersionString ::GetAvailableCoreWebView2BrowserVersionString
+
+    // Automatically link the static loader lib with MSVC
+    #pragma comment(lib, "WebView2LoaderStatic")
+#else
 // WebView2Loader typedefs
 typedef HRESULT (__stdcall *CreateCoreWebView2EnvironmentWithOptions_t)(
     PCWSTR browserExecutableFolder,
@@ -54,8 +61,9 @@ typedef HRESULT(__stdcall *GetAvailableCoreWebView2BrowserVersionString_t)(
 
 CreateCoreWebView2EnvironmentWithOptions_t wxCreateCoreWebView2EnvironmentWithOptions = NULL;
 GetAvailableCoreWebView2BrowserVersionString_t wxGetAvailableCoreWebView2BrowserVersionString = NULL;
-
 wxDynamicLibrary wxWebViewEdgeImpl::ms_loaderDll;
+#endif // wxUSE_WEBVIEW_EDGE_STATIC
+
 wxString wxWebViewEdgeImpl::ms_browserExecutableDir;
 
 wxWebViewEdgeImpl::wxWebViewEdgeImpl(wxWebViewEdge* webview):
@@ -132,6 +140,7 @@ HRESULT wxWebViewEdgeImpl::OnEnvironmentCreated(
 
 bool wxWebViewEdgeImpl::Initialize()
 {
+#if !wxUSE_WEBVIEW_EDGE_STATIC
     if (ms_loaderDll.IsLoaded())
         return true;
 
@@ -144,7 +153,7 @@ bool wxWebViewEdgeImpl::Initialize()
     wxDL_INIT_FUNC(wx, GetAvailableCoreWebView2BrowserVersionString, loaderDll);
     if (!wxGetAvailableCoreWebView2BrowserVersionString || !wxCreateCoreWebView2EnvironmentWithOptions)
         return false;
-
+#endif
     // Check if a Edge browser can be found by the loader DLL
     wxCoTaskMemPtr<wchar_t> versionStr;
     HRESULT hr = wxGetAvailableCoreWebView2BrowserVersionString(
@@ -155,14 +164,18 @@ bool wxWebViewEdgeImpl::Initialize()
         return false;
     }
 
+#if !wxUSE_WEBVIEW_EDGE_STATIC
     ms_loaderDll.Attach(loaderDll.Detach());
+#endif
 
     return true;
 }
 
 void wxWebViewEdgeImpl::Uninitialize()
 {
+#if !wxUSE_WEBVIEW_EDGE_STATIC
     ms_loaderDll.Unload();
+#endif
 }
 
 void wxWebViewEdgeImpl::UpdateBounds()