From a1fcd05baa1a6a5cae0bd8740a3f5ee7bb44b203 Mon Sep 17 00:00:00 2001
From: "chunmao.guo" <chunmao.guo@bambulab.com>
Date: Wed, 7 Dec 2022 10:05:37 +0800
Subject: [PATCH] FIX: [STUDIO-1570] wkwebview background color

Change-Id: I6b18a2dbf654b71bff88e0c14317d4479358218a
---
 src/slic3r/GUI/WebViewDialog.cpp   | 2 ++
 src/slic3r/GUI/Widgets/WebView.cpp | 4 ++++
 src/slic3r/Utils/MacDarkMode.hpp   | 1 +
 src/slic3r/Utils/MacDarkMode.mm    | 7 +++++++
 4 files changed, 14 insertions(+)

diff --git a/src/slic3r/GUI/WebViewDialog.cpp b/src/slic3r/GUI/WebViewDialog.cpp
index 640ee10b6..a7f52b584 100644
--- a/src/slic3r/GUI/WebViewDialog.cpp
+++ b/src/slic3r/GUI/WebViewDialog.cpp
@@ -95,6 +95,8 @@ WebViewPanel::WebViewPanel(wxWindow *parent)
         }
         GetSizer()->Add(m_browser, wxSizerFlags().Expand().Proportion(1));
         GetSizer()->Layout();
+#else
+        (void) this;
 #endif
     });
 
diff --git a/src/slic3r/GUI/Widgets/WebView.cpp b/src/slic3r/GUI/Widgets/WebView.cpp
index 78a294221..f60f7bdb8 100644
--- a/src/slic3r/GUI/Widgets/WebView.cpp
+++ b/src/slic3r/GUI/Widgets/WebView.cpp
@@ -125,6 +125,10 @@ wxWebView* WebView::CreateWebView(wxWindow * parent, wxString const & url)
         webView->SetUserAgent(wxString::Format("BBL-Slicer/v%s (%s) Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko)", SLIC3R_VERSION,
                                                Slic3r::GUI::wxGetApp().dark_mode() ? "dark" : "light"));
 #endif
+#ifdef __WXMAC__
+        WKWebView * wkWebView = (WKWebView *) webView->GetNativeBackend();
+        Slic3r::GUI::WKWebView_setTransparentBackground(wkWebView);
+#endif
 #ifndef __WIN32__
         Slic3r::GUI::wxGetApp().CallAfter([webView] {
 #endif
diff --git a/src/slic3r/Utils/MacDarkMode.hpp b/src/slic3r/Utils/MacDarkMode.hpp
index 6696bf45e..9a450c1f3 100644
--- a/src/slic3r/Utils/MacDarkMode.hpp
+++ b/src/slic3r/Utils/MacDarkMode.hpp
@@ -11,6 +11,7 @@ extern bool mac_dark_mode();
 extern double mac_max_scaling_factor();
 extern void set_miniaturizable(void * window);
 void WKWebView_evaluateJavaScript(void * web, wxString const & script, void (*callback)(wxString const &));
+void WKWebView_setTransparentBackground(void * web);
 void set_tag_when_enter_full_screen(bool isfullscreen);
 void set_title_colour_after_set_title(void * window);
 void initGestures(void * view,  wxEvtHandler * handler);
diff --git a/src/slic3r/Utils/MacDarkMode.mm b/src/slic3r/Utils/MacDarkMode.mm
index a7662e9dc..f005987f5 100644
--- a/src/slic3r/Utils/MacDarkMode.mm
+++ b/src/slic3r/Utils/MacDarkMode.mm
@@ -8,6 +8,7 @@
 #import <Cocoa/Cocoa.h>
 #import <Foundation/Foundation.h>
 #import <AppKit/NSScreen.h>
+#import <WebKit/WebKit.h>
 
 #include <objc/runtime.h>
 
@@ -91,6 +92,12 @@ void WKWebView_evaluateJavaScript(void * web, wxString const & script, void (*ca
         }
     }];
 }
+    
+void WKWebView_setTransparentBackground(void * web)
+{
+    WKWebView * webView = (WKWebView*)web;
+    [webView layer].backgroundColor = [NSColor clearColor].CGColor;
+}
 
 void openFolderForFile(wxString const & file)
 {