source/blender/blendthumb/CMakeLists.txt

@@ -68,7 +68,7 @@ if(APPLE)
 
   set(SRC_CMD
     src/ThumbnailProvider.mm
-    src/ThumbnailProvider.h
+    src/ThumbnailProvider.hh
     src/Info.plist
   )
 

source/blender/blendthumb/src/README.md

@@ -0,0 +1,20 @@
+lsregister and its listing and detection
+
+more logs in lldb
+
+more logs in console: look for anything qlmanage
+
+must sign the appex bundle with sandbox
+
+must launch the app
+
+appex cannot write at all : inferred from
+
+error	17:53:57.863578+0530	kernel	Sandbox: qlmanage(37213) deny(1) file-write-data /dev/dtracehelper
+error	17:53:58.033957+0530	kernel	Sandbox: qlmanage(37213) deny(1) mach-register com.apple.axserver (per-pid)
+error	17:53:58.071424+0530	kernel	Sandbox: qlmanage(37213) deny(1) mach-register com.apple.tsm.portname (per-pid)
+error	17:53:58.164827+0530	kernel	Sandbox: qlmanage(37213) deny(1) user-preference-read com.apple.HIToolbox
+error	17:54:00.837220+0530	kernel	Sandbox: qlmanage(37213) deny(1) file-write-data /dev/dtracehelper
+error	17:54:00.904484+0530	kernel	Sandbox: qlmanage(37213) deny(1) file-write-create /Users/ankitkumar/Library/Saved Application State/com.apple.quicklook.qlmanage.savedState
+
+https://eclecticlight.co/2018/04/05/inside-quicklook-previews-with-qlmanage/

source/blender/blendthumb/src/ThumbnailProvider.hh

@@ -1,4 +1,4 @@
-#include <AppKit/AppKit.h>
+#pragma once
 
 #import <Quartz/Quartz.h>
 #import <QuickLookThumbnailing/QuickLookThumbnailing.h>
@@ -9,8 +9,4 @@ NS_ASSUME_NONNULL_BEGIN
 
 @end
 
-@interface PreviewViewController : NSViewController <QLPreviewingController>
-
-@end
-
 NS_ASSUME_NONNULL_END

source/blender/blendthumb/src/ThumbnailProvider.mm

@@ -6,7 +6,7 @@
 #import <QuickLook/QLBase.h>
 #import <QuickLook/QuickLook.h>
 
-#import "ThumbnailProvider.h"
+#import "ThumbnailProvider.hh"
 
 #include "BLI_fileops.h"
 #include "BLI_filereader.h"
@@ -71,7 +71,6 @@ static eThumbStatus creator_impl(const char *src_blend_path)
                       // the Info.plist of the
     // extension.
 
-    std::cout << "Hello World from blender Blender thumbnailer" << std::endl;
     NSLog(@"hello world from blender");
     NSURL *foo = [[NSURL alloc]
         initFileURLWithFileSystemRepresentation:"/Users/ankitkumar/Pictures/IMG_3158.JPG"
@@ -84,60 +83,3 @@ static eThumbStatus creator_impl(const char *src_blend_path)
 }
 
 @end
-
-@implementation PreviewViewController
-
-- (NSString *)nibName
-{
-  return @"PreviewViewController";
-}
-
-- (void)loadView
-{
-  [super loadView];
-  // Do any additional setup after loading the view.
-}
-
-/*
- * Implement this method and set QLSupportsSearchableItems to YES in the Info.plist of the
-extension if you support CoreSpotlight.
- *
-- (void)preparePreviewOfSearchableItemWithIdentifier:(NSString *)identifier queryString:(NSString
-*)queryString completionHandler:(void (^)(NSError * _Nullable))handler {
-
-    // Perform any setup necessary in order to prepare the view.
-
-    // Call the completion handler so Quick Look knows that the preview is fully loaded.
-    // Quick Look will display a loading spinner while the completion handler is not called.
-
-    handler(nil);
-}
-*/
-
-- (void)preparePreviewOfFileAtURL:(NSURL *)url
-                completionHandler:(void (^)(NSError *_Nullable))handler
-{
-
-  // Add the supported content types to the QLSupportedContentTypes array in the Info.plist of the
-  // extension.
-
-  // Perform any setup necessary in order to prepare the view.
-
-  // Call the completion handler so Quick Look knows that the preview is fully loaded.
-  // Quick Look will display a loading spinner while the completion handler is not called.
-
-  NSLog(@"blender preparePreviewOfFileAtURL: %@", url);
-  std::ofstream file("/Users/ankitkumar/blender-build/build_darwin_debug_lite/foobar.txt",
-                     std::ios::out | std::ios::trunc | std::ios::binary);
-  file << "Hello World";
-  file.close();
-  std::cout << "Hello World" << std::endl;
-  // set image to file path /Users/ankit.kumar/Desktop/Screenshot 2021-09-02 at 1.59.47 PM.png
-  [[[self view] imageRepresentation]
-      setFileURL:[NSURL fileURLWithPath:@"/Users/ankitkumar/Pictures/IMG_3158.JPG"
-                            isDirectory:NO]];
-  [[self view] display];
-  handler(nil);
-}
-
-@end

source/creator/CMakeLists.txt

@@ -1356,10 +1356,11 @@ elseif(APPLE)
     )
     get_target_property(BL_CODESIGN_ENTITLEMENTS blender-thumbnailer BL_CODESIGN_ENTITLEMENTS)
     install(CODE
-    "message(STATUS \"Codesigning thumbnailer with entitlements: ${BL_CODESIGN_ENTITLEMENTS}\")")
-    install(CODE
     "execute_process(
-      COMMAND codesign --entitlements \"${BL_CODESIGN_ENTITLEMENTS}\" --force --deep --sign -  \"${EXECUTABLE_OUTPUT_PATH}/Blender.app/Contents/Plugins/blender-thumbnailer.appex\"
+      COMMAND codesign
+      --entitlements \"${BL_CODESIGN_ENTITLEMENTS}\"
+      --force --deep --sign -
+      \"${EXECUTABLE_OUTPUT_PATH}/Blender.app/Contents/Plugins/blender-thumbnailer.appex\"
     )")
   endif()