Drag and Drop Text Copies Instead of Cuts

[codebrainz]

I'm not sure if it's just my configuration, but when I select text and then drag it to a new place, it makes a copy in the destination and leaves the original text. I tried it in "TextEdit" and it behaves same as Linux, so it seems like something might be wrong.

[elextr]

Maybe it should be using Scintilla for OSX?

On 7 April 2015 at 07:10, Matthew Brush [email protected] wrote:

I'm not sure if it's just my configuration, but when I select text and
then drag it to a new place, it makes a copy in the destination and leaves
the original text. I tried it in "TextEdit" and it behaves same as Linux,
so it seems like something might be wrong.

—
Reply to this email directly or view it on GitHub
#4.

[codebrainz]

On 2015-04-06 5:58 PM, elextr wrote:

Maybe it should be using Scintilla for OSX?

Patches welcome on porting Geany to Cocoa and maintaining it.

When you're done you can start working on the Win32 port :)

[elextr]

heh, sure put it "somebody"s list :)

What I was saying is that I wouldn't be surprised if there are Scintilla glitches using GTK scintilla on OSX, I doubt Neil tests that combination since Scintilla has a native OSX backend. Not sure we can mix OSX Scintilla with GTK everything else though.

[techee]

This one actually looks like a GTK bug - I put some traces to Scintilla and Gtk seems to behave strange regarding dnd. I think there are some dnd patches in gtk-osx which are applied on top of gtk but I guess not everything works.

@elextr Using the Cocoa Scintilla backend would be nice (I have bought SciTE OS X version mostly as a means of donation/thanks to Neil and it looks really nice with smooth scrolling and native behavior) but for Geany it requires bridging the GTK API to the native OS X API which means translating events from one to the other and this is just too much work. But as Matthew said, patches are welcome :-).

[elextr]

@techee what I was actually saying is that Neil is unlikely to extensively (if at all) test GTK scintilla on OSX since he has a proper backend for that :)

[techee]

I just tried gtk3-demo and dnd seems to copy text there too so this bug isn't related to Scintilla.

[elextr]

What does gtk3-demo on linux do?

[techee]

I just tried drag and drop selected test in GtkEntry in the demo on macOS and it copies text. I haven't tried gtk3-demo on linux but drag and drop selected text in GtkEntry moves the text. It seems it's some problem with mouse input handling on macOS.

[elextr]

I haven't tried gtk3-demo on linux but drag and drop selected text in GtkEntry moves the text.

Here (on Linux) DND in the same entry moves text, but DND between two entries [Edit: or to an external program] copies text.

DND within Scintilla moves text, but DND to another widget (eg scribble) or external program (this browser) copies text.

That all seems consistent.

[techee]

Here (on Linux) DND in the same entry moves text

Yeah, but on the Mac it copies text within the same entry too (same with Scintilla).

[elextr]

What is the normal behaviour on Mac for other apps, is it the same as on Linux? If it is then yeah, seems GTK for OSX has a bug.

[techee]

What is the normal behaviour on Mac for other apps, is it the same as on Linux?

Yes.

If it is then yeah, seems GTK for OSX has a bug.

Exactly.

[techee]

The reason for this bug are the /* FIXME: Implement */ stubs of the functions here:

https://gitlab.gnome.org/GNOME/gtk/-/blob/gtk-3-24/gdk/quartz/gdkdnd-quartz.c#L71

The DND GTK API that Scintilla uses just returns incorrect values because of this.

[elextr]

char* talk(){
/* FIXME Implement */
 return NULL;
}

Look I wrote chatGPT 😁