Just resetting the last window is of course not enough here. I think
Dolphin/Qt run into the same issue, because their drop seems to stick
when hovering over Emacs (or Emacs is to blame, which could very well be
the case here).
We cannot integrate this into our event loop like we planned, because
Wine a) grabs the mouse pointer so we cannot do that, and b) blocks the
GUI thread. So instead we will spawn our own thread and do polling based
XDND. When Wine's tracker window gets destroyed, we know that the left
mouse button has been released.
JUCE incorrectly calls `IComponentHandler::performEdit()` from the audio
thread instead of using the output parameter changes queue, so this
would also cause GUI resizes to be handled from the audio thread if they
come in at the same time as such a parameter change.
Apparently X11 connections are a scarce resource, so it seems like a
good idea to not hang on to them for too long. Now this is sort of a
hybrid between COM-style memory management and a singleton.
This doesn't do anything useful yet, but it will print the names of
files that are being dragged and dropped on the Wine server (using the
OLE API) while the plugin is open.
This is needed as a workaround to support Waves VST3 plugins.
Right now does does not actually fix the issue because the arguments are
not updated in the subclasses. The next commit will fix this.
Seems weird to need this specifically so we can use the map overload
that creates a new instance when the key doesn't exist in the map. This
seems safer.
Letting `std::unique_ptr<T>` do the thinking for us makes a lot more
sense. We only need manual memory management for the error because we
need to pass a pointer to that pointer to xcb, but at least we have the
macro there so it still stays nice and readable.
We sadly cannot call `shared_library()` and `executable()` in these
subdirectories while still maintaining the same `build/` directory
structure, but this is still much cleaner. All of the other build
artifacts are now also gone from the root of `build/` so it's cleaner
overall.
We should only have the global options in the main meson.build file. It
made sense to keep everything in one place at one point, but an 800 line
build script becomes a bit difficult to skim through.