Drag & Dropの実装はApple公式ドキュメントのコードが古くなっていることもあり一筋縄ではいきません。一つ一つ解決していきます。
NSString *filePath1, *filePath2; // Assume these exist
- (void)mouseDown:(NSEvent *)theEvent
{
NSImage *dragImage;
NSPoint dragPosition;
// Write data to the pasteboard
NSArray *fileList = [NSArray arrayWithObjects:filePath1, filePath2, nil];
NSPasteboard *pboard = [NSPasteboard pasteboardWithName:NSDragPboard];
[pboard declareTypes:[NSArray arrayWithObject:NSFilenamesPboardType]
owner:nil];
[pboard setPropertyList:fileList forType:NSFilenamesPboardType];
// Start the drag operation
dragImage = [[NSWorkspace sharedWorkspace] iconForFile:filePath1];
dragPosition = [self convertPoint:[theEvent locationInWindow]
fromView:nil];
dragPosition.x -= 16;
dragPosition.y -= 16;
[self dragImage:dragImage
at:dragPosition
offset:NSZeroSize
event:theEvent
pasteboard:pboard
source:self
slideBack:YES];
}警告1
/XlsxConvertor.mm:292:61: warning:
'NSDragPboard' is deprecated: first deprecated in macOS 10.13
[-Wdeprecated-declarations]
NSPasteboard *pboard = [NSPasteboard pasteboardWithName:NSDragPboard];
^~~~~~~~~~~~
NSPasteboardNameDrag
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.1.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSPasteboard.h:338:32: note: 'NSDragPboard' has been explicitly marked deprecated here
APPKIT_EXTERN NSPasteboardName NSDragPboard API_DEPRECATED_WITH_REPLACEMENT("NSPasteboardNameDrag", macos(10.0,10.13));
^
警告2
/XlsxConvertor.mm:293:51: warning: 'NSFilenamesPboardType' is deprecated: first deprecated in macOS 10.14 - Create multiple pasteboard items with NSPasteboardTypeFileURL or kUTTypeFileURL instead [-Wdeprecated-declarations]
[pboard declareTypes:[NSArray arrayWithObject:NSFilenamesPboardType]
^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.1.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSPasteboard.h:312:32: note:
'NSFilenamesPboardType' has been explicitly marked deprecated here
APPKIT_EXTERN NSPasteboardType NSFilenamesPboardType API_DEPRECATED("Create multiple pasteboard items with NSPasteboardTypeFileURL or kUTTypeFileURL instead", macos(10.0,10.14));
^
警告3
/XlsxConvertor.mm:295:46: warning:
'NSFilenamesPboardType' is deprecated: first deprecated in macOS 10.14
- Create multiple pasteboard items with NSPasteboardTypeFileURL or kUTTypeFileURL instead [-Wdeprecated-declarations]
[pboard setPropertyList:fileList forType:NSFilenamesPboardType];
^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.1.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSPasteboard.h:312:32: note:
'NSFilenamesPboardType' has been explicitly marked deprecated here
APPKIT_EXTERN NSPasteboardType NSFilenamesPboardType API_DEPRECATED("Create multiple pasteboard items with NSPasteboardTypeFileURL or kUTTypeFileURL instead", macos(10.0,10.14));
^
警告4
/XlsxConvertor.mm:299:26: warning: instance method '-convertPoint:fromView:' not found (return type defaults to 'id') [-Wobjc-method-access]
dragPosition = [self convertPoint:[theEvent locationInWindow]
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
注意1
/XlsxConvertor.mm:7:12: note: receiver is instance of class declared here
@interface Window : NSWindow {
^
エラー1
/XlsxConvertor.mm:299:18: error: no viable overloaded '='
dragPosition = [self convertPoint:[theEvent locationInWindow]
~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.1.sdk/System/Library/Frameworks/CoreGraphics.framework/Headers/CGGeometry.h:20:1: note:
candidate function (the implicit copy assignment operator) not viable: no known conversion from 'id' to 'const CGPoint' for 1st argument
CGPoint {
^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.1.sdk/System/Library/Frameworks/CoreGraphics.framework/Headers/CGGeometry.h:20:1: note:
candidate function (the implicit move assignment operator) not viable: no known conversion from 'id' to 'CGPoint' for 1st argument
4 warnings and 1 error generated.