RackV2 breaks drag and drop file functionality

Development
1

When attempting to drag and drop a file from the OS filesystem (Finder on MacOS) into VCV Rack v2, I get the following error:

2021-10-10 18:11:10.787 Rack[84932:762275] -[__NSCFString count]: unrecognized selector sent to instance 0x7fdec1e9dbf0
2021-10-10 18:11:10.787 Rack[84932:762275] *** Canceling drag because exception 'NSInvalidArgumentException' (reason '-[__NSCFString count]: unrecognized selector sent to instance 0x7fdec1e9dbf0') was raised during a dragging session

This is module independent and is reproducible on MacOS.

1 Like
2

I came across this problem just this evening when trying to drag a wav file into a Nysthi sampler in v2 (on Mac Catalina)

3

Just some added info: Issue does NOT occur on Windows, there drag and drop of external files still works fine in v2.

4

on my MAC (an M1) the

dropCallback

is never called
(the one set with glfwSetDropCallback )

because it’s failing before in the
performDragOperation

in cocoa_window.m for GLFW

5

if I use performDragOperation from GLFW 3.3.4, it works…

{
    const NSRect contentRect = [window->ns.view frame];
    // NOTE: The returned location uses base 0,1 not 0,0
    const NSPoint pos = [sender draggingLocation];
    _glfwInputCursorPos(window, pos.x, contentRect.size.height - pos.y);

    NSPasteboard* pasteboard = [sender draggingPasteboard];
    NSDictionary* options = @{NSPasteboardURLReadingFileURLsOnlyKey:@YES};
    NSArray* urls = [pasteboard readObjectsForClasses:@[[NSURL class]]
                                              options:options];
    const NSUInteger count = [urls count];
    if (count)
    {
        char** paths = calloc(count, sizeof(char*));

        for (NSUInteger i = 0;  i < count;  i++)
            paths[i] = _glfw_strdup([urls[i] fileSystemRepresentation]);

        _glfwInputDrop(window, (int) count, (const char**) paths);

        for (NSUInteger i = 0;  i < count;  i++)
            free(paths[i]);
        free(paths);
    }

    return YES;
}
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6

seems solved currently glfw is at 3.4 version

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