We were already considering the plugins under /common but
not the plug-ins that have their own subdirectories. So,
plugin_executables did not match custom_plugin_targets and
the build started to fail on macOS where install_name_tool
neeeds to process the plugins setting the right LC_RPATH.
This commit enables GimpBrowser to emit the "stop-search" signal,
originally emitted only by the internal GtkSearchEntry.
It also connects this signal to all widgets embedding a GimpBrowser,
so they can intercept it and close themselves.
This restores the behaviour that existed before the GtkSearchEntry update
I incorrectly read the GMainLoop documentation and thought that calling
g_main_loop_new with NULL as the first parameter will return the
"default GMainLoop". This is wrong and it resulted in the original
GMainLoop to never stop and therefore for the plug-in to never stop.
This also adds a call to unref for the GMainLoop.
This note was relevant when the plug-in used GEGL code for collecting
available GEGL operations. This is no longer the case and thus the
copyright can be dropped.
A new browser for exploring the available and supported GEGL operations
for use with the filter API. These include also all operations loaded as
GEGL plug-ins and operations registered from GIMP.
Similarly to the Procedure browser it shows also the details of
individual parameters like the allowed values and default values. In the
case of a type that is not completely supported by the GimpProtocol, the
browser can show useful information about a parameter thanks to a PDB
procedure encoding the information in a placeholder GParamSpec.
