2005-09-01 Matthias Clasen <mclasen@redhat.com>
* gdk/*.c: Intern some more strings.
* gtk/gtkintl.h:
* gtk/*.c: Define an I_() macro and use it instead of the
bulky g_intern_static_string().
2005-08-31 Matthias Clasen <mclasen@redhat.com>
* gdk/Makefile.am:
* gtk/Makefile.am: Intern type names in code generated by
glib-mkenums, too.
* gtk/*.c:
* gdk/x11/*.c:
* gdk/*.c: Intern type names before registering the type to avoid
unnecessary copies.
2005-06-27 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkmenushell.c (gtk_menu_shell_grab_broken): Ignore
GrabBroken events which are caused by overgrabbing inside
the application; menus rely on these for their operation.
* gdk/gdkevents.h (struct _GdkEventGrabBroken): Add a
grab_window field.
* gdk/win32/gdkevents-win32.c (gdk_event_translate): Set
grab_window to NULL when generating GrabBroken events for
WM_KILLFOCUS messages.
* gdk/x11/gdkmain-x11.c (_gdk_xgrab_check_unmap)
(_gdk_xgrab_check_destroy): Set grab_window to NULL when
generating GrabBroken events when the grab window becomes
unviewable or is destroyed.
* gdk/x11/gdkmain-x11.c (gdk_pointer_grab, gdk_keyboard_grab):
Generate GrabBroken events when overriding a grab inside
the application. In this case, set grab_window to the new
grab_window.
2005-06-25 Matthias Clasen <mclasen@redhat.com>
Add a GrabBroken event to GDK, and a grab-broken-event
signal to GtkWidget. (#107320, Simon Cooke, initial patch
by John Ehresman)
* gdk/gdkevents.h: Add a GDK_GRAB_BROKEN event type,
define a GdkEventGrabBroken event struct.
* gdk/win32/gdkevents-win32.c (gdk_event_translate):
Generate GrabBroken events in response to WM_KILLFOCUS.
* gdk/x11/gdkmain-x11.c: Generate GrabBroken events
when a grab is broken by the window becoming unviewable,
or by another grab from the same client.
* gtk/gtkwidget.h (GtkWidgetClass): Add grab_broken_event.
* gtk/gtkwidget.c (gtk_widget_event_internal): Translate
GrabBroken events into grab_broken_event signals.
* gtk/gtkmain.c (gtk_main_do_event): Propagate GrabBroken
events.
* gtk/gtkmenushell.c (gtk_menu_shell_grab_broken): Deactivate
the menu when the grab is broken.
* gtk/gtkcolorsel.c (gtk_color_selection_grab_broken): Stop
the color picker if the grab is broken.
* gtk/gtkpaned.c (gtk_paned_grab_broken): Stop the drag if
the grab is broken.
2005-05-02 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkmenushell.c (gtk_menu_shell_set_take_focus):
(gtk_menu_shell_get_take_focus): Fix up the docs a bit.
2005-03-31 Michael Natterer <mitch@gimp.org>
Allow to pop up menus without grabbing the keyboard. Useful for
stuff like virtual keyboards. Fixes bug #159890
* gtk/gtk.symbols
* gtk/gtkmenushell.[ch]: added boolean property "take-focus"
and public API gtk_menu_shell_set/get_take_focus().
* gtk/gtkmenu.c (gtk_menu_popup)
(popup_grab_on_window): don't grab the keyboard if take_focus
is FALSE.
* gtk/gtkmenuitem.c (_gtk_menu_item_popup_submen): propagate the
parent menu_shell's take_focus property to the submenu which is
about to be popped up.
2005-03-20 Matthias Clasen <mclasen@redhat.com>
Make PLT-reduction work with gcc4, and don't include
everything in gdkalias.h:
* gtk/grk.symbols: Group symbols by header and source file.
* gtk/makegtkalias.pl: Protect definitions by the same
preprocessor symbols used to guard the headers. Move
the alias declarations to a separate file which is
produced when calling makegtkalias.pl -def
* gdk/Makefile.am (gtkaliasdef.c): Add a rule to generate
this file.
* gtk/*.c: Include gtkalias.h after the other headers,
include gtkaliasdef.c at the bottom.
* gtk/*.h: Small cleanups.
2005-02-11 Matthias Clasen <mclasen@redhat.com>
Support vertical menubars (#166632):
* gtk/gtkenums.h (GtkPackDirection): New enumeration for pack
directions, with values for left-to-right, right-to-left,
top-to-bottom and bottom-to-top.
* gtk/gtk.symbols:
* gtk/gtkmenubar.h:
* gtk/gtkmenubar.c: Add two properties, pack-direction and
child-pack-direction, which specify how children and
grandchildren of a menubar are packed, with getters and setters.
* gtk/gtkmenubar.c (gtk_menu_bar_set_property):
(gtk_menu_bar_get_property): Implement set_property and get_property.
* gtk/gtkmenubar.c (gtk_menu_bar_size_request):
(gtk_menu_bar_size_allocate): Take pack direction into account.
* gtk/gtkmenubar.c (gtk_menu_bar_move_current): Implement
move_current here move all the menubar-specific direction
tweaking from the generic menushell implementation here.
* gtk/gtkmenu.c (gtk_menu_move_current): Move menu-specific
direction tweaking from the generic menushell implementation here.
* gtk/gtkmenuitem.c (gtk_menu_item_size_request):
(gtk_menu_bar_size_allocate): Take pack direction into account.
* gtk/gtkimagemenuitem.c (gtk_image_menu_item_size_request)
(gtk_image_menu_item_size_allocate):
(gtk_image_menu_item_toggle_size_request): Take child pack
direction into account and pack the image vertically if
necessary.
* gtk/gtkmenushell.c (gtk_menu_shell_real_select_item):
Set the submenu direction to left-right for menuitems in
vertical menubars.
(gtk_real_menu_shell_move_current): Simplify by moving
direction tweaking to menu- and menubar-specific
implementations. Take pack direction into account when
doing fallbacks.
* tests/testmenubars.c: Test menubars in various packing
direction combinations.
* tests/Makefile.am (noinst_PROGRAMS): Add testmenubars.
2004-12-28 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkmenushell.c (gtk_menu_shell_select_submenu_first):
Return a boolean indicating whether an item in the submenu
was selected.
(gtk_real_menu_shell_move_current): When going in child
direction, don't get stuck at completely insensitive
submenus. (#162055, Billy Biggs)
2004-12-15 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkmenushell.c (gtk_menu_shell_select_submenu_first)
(gtk_real_menu_shell_activate_current): Use
_gtk_menu_item_popup_submenu() to make keynav into submenus work
instantaneously, independent of the popup delay. (#161140)
* gtk/gtkmenuitem.[hc]: _-prefix gtk_menu_item_popup_submenu() and
make it non-static.
* gtk/gtkmenuitem.c (gtk_menu_item_paint): Remove unused variables.
2004-12-10 Matthias Clasen <mclasen@redhat.com>
Support no-Alt mnemnonics in menu bars (#101309, Owen Taylor)
* gtk/gtkwindow.c: Factor out mnemonic hash code into
a separate file.
* gtk/gtkmnemonichash.[hc]: Factored out mnemonic hash
code from gtkwindow.c.
* gtk/Makefile.am (gtk_c_sources): Add gtkmnemonichash.[hc].
* gtk/gtkmenushell.c (struct _GtkMenuShellPrivate): Give
menu shells their own mnemonic hash.
* gtk/gtkmenushell.h: Add private api to support mnemonics.
* gtk/gtklabel.c (gtk_label_setup_mnemonic): Add mnemonic to
the menushell mnemonic hash when inside a menu.
2004-11-29 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkmenushell.c (gtk_menu_shell_button_release): Don't
do the popup-on-click handling for menubars. (#159931,
Søren Sandmann)
* gtk/gtkmenuitem.c (gtk_real_menu_item_select): Don't
handle popup delay if the submenu is already mapped.
2004-11-24 Matthias Clasen <mclasen@redhat.com>
Open submenus on click. (#128968, Martin Jeppesen)
* gtk/gtkmenushell.c (gtk_menu_shell_button_release): Don't
activate items with submenus after the timeout, just select
them.
* gtk/gtkmenuitem.c (gtk_real_menu_item_select): Make
submenus popup immediately on click, regardless of popup
delay.
Mon Aug 9 12:48:04 2004 Matthias Clasen <maclas@gmx.de>
Add hidden aliases for exported symbols which are
used internally in order to get rid of many PLT
entries. (#145519, Arjan van de Ven)
* gtk/Makefile.am: Add rules to generate gtk.def and
from gtk.symbols, and make make check check the abi
with abicheck.sh.
(gtk_private_h_sources): Add gtkinternals.h
(gtk_built_private_headers): Add gtkalias.h
(gtk_extra_sources): Add gtk.symbols
(EXTRA_DIST): Add makegtkalias.pl and abicheck.sh
* gtk/gtk.symbols: New file. Definition of the GTK+ ABI.
The file can be processed by cpp to filter out certain
subsets of symbols.
* gtk/abicheck.sh: New file. Script to check the actually
symbols exported from libgtk-x11.2.0.so against the symbols
found in gtk.symbols.
* gtk/makegtkalias.pl: New file. Perl script to generate the
header containing the alias definitions for internally used
exported symbols from a list of symbols.
* gtk/gtkinternals.h: New file. An uninstalled header listing
symbols which must be exported for some reason and do not appear
in any other header.
* gtk/*.c: Include gtkalias.h
Wed Jun 2 00:39:58 2004 Soeren Sandmann <sandmann@daimi.au.dk>
* gtk/gtkmenushell.c (gtk_menu_shell_button_release): Make menus
only stay up if you release within 500 milliseconds.
(gtk_menu_shell_button_press): Set the activate_time to the event
time when a button is pressed.
* gtk/gtkmenu.c (gtk_menu_motion_notify, gtk_menu_enter_notify):
Interprete button releases as activate when we have seen both an
enter an a motion event.
Sun Mar 14 19:26:48 2004 Owen Taylor <otaylor@redhat.com>
#136672, reported by Christian Persch; fixes based
on a patch by Soeren Sandmann.
* gtk/gtkmenu.c: Change the handling of mixed gridded
and non-gridded menu items; the old method was causing
major performance problems even with the "avoid relayout
on destruction" hack put in recently.
Now we first lay out the gridded items and then put the
non-gridded items into empty rows / after the gridded items.
Layout is done in a central menu_shell_ensure_layout(). Also
avoid emitting property notifications when we initially
insert or attach items.
* gtk/gtkmenushell.[ch] gtk/gtkmenu.c: Stop setting the
unused menu_shell->menu_flag, and document it as unused
in the header.
* tests/testactions.c: Add a test of creating/removing
lots of items.
* test/testgtk.c: Add some more cruft to the menu test.
2004-03-05 Federico Mena Quintero <federico@ximian.com>
Fixes#136082 and #135265, patch by Morten Welinder.
* configure.in: Use AC_SYS_LARGEFILE.
* */*.c: #include <config.h>
Mon Mar 1 23:52:15 2004 Tim Janik <timj@gtk.org>
* gtk/gtkbindings.[hc]: expose gtk_bindings_activate_event(), changed
callers.
* gtk/gtkwindow.[hc]: added gtk_window_propagate_key_event() to expose
the key event propagation mechanism used for focus widgets.
(gtk_window_key_release_event): use the same key event propagation logic
as gtk_window_key_press_event().
Sun Feb 29 20:34:06 2004 Owen Taylor <otaylor@redhat.com>
* gtk/gtkwindow.[ch] gtk/gtkmenushell.c: export
gtk_window_activate_key() (Request from Tim Janik)
Sun Dec 21 01:54:40 2003 Matthias Clasen <maclas@gmx.de>
* gtk/gtkmenushell.h:
* gtk/gtkmenushell.c (gtk_menu_shell_cancel): New function
to emit the "cancel" signal on a menu shell.
* gtk/gtkmenu.c (gtk_menu_key_press):
* gtk/gtkoptionmenu.c (gtk_option_menu_remove_menu):
* gtk/gtkmenubar.c (_gtk_menu_bar_cycle_focus): Use the
new function instead of directly emitting the
signal. (#81803, Owen Taylor)
Wed Aug 13 17:01:49 2003 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenushell.[ch] (gtk_menu_shell_enter_notify):
Remove usage of menu_shell->ignore leave which was
to deal with stray events we no longer get because
we do grabbing differently. Comment it as unused in
the header. (#115837, Keith Bissett)
Wed Jan 29 15:43:56 2003 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenushell.c (gtk_real_menu_shell_move_current):
Make up from the menu bar go to the end of the submenu.
(#96114, Ian Peters.)
* gtk/gtkmenuitem.c (gtk_menu_item_mnemonic_activate):
Only do the select-but-not-activate stuff if the
menu is already active. Otherwise, just activate.
(#101690, Arvind Samptur)
Sat Dec 14 14:19:16 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenu.c: Add a new binding signal, "move_scroll",
and use it to hook up Home/End/Page_Up/Page_Down keybindings.
(#80484, Narayana Pattipati, Marius Andreiana)
* gtk/gtkmenu.c (gtk_menu_scroll_item_visible): Fix some
bugs in the computation of when an item is visible. (#99545)
* gtk/gtkbindings.[ch] (_gtk_binding_signal_new) gtk/gtkmenushell.c:
Move here, export privately.
* gtk/gtkmenushell.c (_gtk_menu_shell_select_last): Export
privately.
* gtk/gtkmenushell.c (gtk_menu_shell_select_item): Don't
select the item if it is already selected.
Sun Oct 20 23:58:03 2002 Soeren Sandmann <sandmann@daimi.au.dk>
* gtkmenu.c, gtkmenubar.c, gtkmenuitem.c, gtkmenushell.c,
gtkmenushell.h, gtkmenushell.h
- make the delay before submenus appear below menu bars a
GtkSetting
- make the delay before submenus pops up a GtkSetting
- make the stay up triangle slightly larger
- don't pop up the first submenu immediately.
- make the default delay for submenus 225 ms, and 0 for menubars.
- make the default delay before popping down inside the stay-up
triangle 1000 ms
Fixes#74950
Thu Jul 25 14:14:46 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenushell.c: When a menubar is up, use F10 to cycle
menubars, not Control-Tab (#87159, Calum Benson. Patch from
Padraig O'Briain.)
* gtk/gtkmenubar.c: When cycling menu bars, cancel
after the last instead of wrapping around.
Fri Jul 5 20:18:23 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenushell.[ch] gtk/gtkmenubar.c gtk/gtkmenuitem.c
gtk/gtkentry.c gtk/gtktextview.c: Add an extra parameter
to _gtk_menu_item_select_first() to allow us to choose
whether we want to select the first item predictably
or to select the first sensitive item. Fixes problem
with insensitive menu items and keynav. (#85796,
reported by Bill Haneman and others.)
Wed Jun 12 17:31:15 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenushell.c (gtk_menu_shell_real_select_item):
Check to see if the menu item is selectable before
setting menu_shell->active_menu_item. This hopefully
will keep gail from getting confused.
(#84115, Remus Draica)
Mon Apr 29 18:28:00 2002 Owen Taylor <otaylor@redhat.com>
Integrate Erwann Chenede's multihead changes for the gtk/ directory.
* gtk/gtkclipboard.[ch]: Add gtk_clipboard_get_for_display(),
make internals multihead aware.
* gtk/gtkcolorsel.[ch]: Add
gtk_color_selection_set_change_palette_with_screen_hook () [ugh!]
make up for non-multihead safety of
gtk_color_selection_set_change_palette_hook()
* gtk/gtkinvisible.[ch] gtk/gtkmenu.[ch] gtkwindow.[ch]: Add
gtk_{invisible,menu,window}_set_screen(); add "screen" properties
for GtkWindow and GtkMenu.
* gtk/gtkplug.[ch]: Add gtk_plug_construct_for_display(),
gtk_plug_new_for_display(). Multihead fixes.
* gtk/gtkselection.[ch]: Add gtk_selection_owner_set_for_display(),
make internals multihead aware.
* gtk/gtksettings.[ch]: Add gtk_settings_get_for_screen(), get
rid of now-useless gtk_settings_constructor().
* gtk/gtkstyle.[ch]: Add gtk_style_get_font_for_display(), fix
check/radio button indicators bitmap handling to be multihead
safe.
* gtk/gtkwidget.[ch]: Add gtk_widget_get_screen(), gtk_widget_has_screen(),
gtk_widget_get_display(), gtk_widget_get_clipboard(),
gtk_widget_get_root_window().
* gtk/gtkbindings.c gtk/gtkbutton.c gtk/gtkclist.c gtk/gtkcombo.c
gtk/gtkctree.c gtk/gtkdnd.c gtk/gtkfilesel.c gtk/gtkgamma.c
gtk/gtkhandlebox.c gtk/gtkhsv.c gtk/gtkimcontext.c gtk/gtklabel.c
gtk/gtklist.c gtk/gtkmain.c gtk/gtkmenuitem.c gtk/gtkmenushell.c
gtk/gtknotebook.c gtk/gtkoldeditable.c gtk/gtkoptionmenu.c
gtk/gtkpaned.c gtk/gtkpreview.c gtk/gtksocket.c gtk/gtktext.c
gtk/gtktextbuffer.c gtk/gtktextview.c gtk/gtktipsquery.c
gtk/gtktooltips.c gtk/gtktreeview.c gtk/gtktreeviewcolumn.c:
misc mechanical multihead-safety fixes.
* gtk/gtkclipboard.c: Use a GtkImage rather than a pixmap for
the dropper, look up the color palette only at realization time,
other multihead fixes.
* gtk/gtkcombo.c (gtk_combo_unrealize): Popdown the list when
unrealizing.
* gtk/gtkentry.c: Only claim ownership of the primary selection
when realized, misc multihead fixes.
* gtk/gtkfontsel.c: Only fill in fonts when attached to a screen,
fix gtk_font_selection_get_font() for multihead.
* gtk/gtkgc.c: make the depth => drawable hash per-screen.
* gtk/gtkinvisible.c: Add a constructor that realizes the
widget, so we get a realized widget with g_object_new() as
well gtk_invisible_new() as before.
* gtk/gtkmain.c: Get rid of unused gtk_visual/gtk_colormap
variables.
* gtk/gtktextdisplay.c: Add warnings if stipple bitmaps
are used on the wrong screen.
* gtk/gtktoolbar.c: Make handling of GtkSettings-based layout
read properties and connect to settings when the screen is changed,
rather than on init/finalize.
* gtk/gtkwindow.c: Fix icon handing to be multihead safe ...
default icon pixmaps/mask are only shared between windows on the
same screen. Misc multihead fixes.
Sat Apr 27 13:49:53 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkclipboard.c (gtk_clipboard_get_for_display):
Update docs to reference GDK_SELECTION_CLIPBOARD rather GDK_NONE.
2002-04-29 Alex Larsson <alexl@redhat.com>
* gdk/linux-fb/gdkproperty-fb.c (gdk_property_get):
Fix silly bug, noticed by Sven Neumann.
Sun Apr 28 22:43:55 2002 Jonathan Blandford <jrb@gnome.org>
* gtk/gtktreemodelsort.c (gtk_tree_model_sort_set_sort_func): Fix
so that you can set a new sort func.
Sat Apr 6 06:57:00 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenushell.[ch] gtk/gtkmenuitem.c: Export
private _gtk_menu_shell_activate() to encapsulate
cut-and-paste code.
* gtk/gtkmenubar.c: Select the first item on the menu bar
for F10 rather than acting as if the user pressed <Alt>F
to select the file manager.
Wed Mar 20 11:32:07 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkentry.c: Improve test to prevent infinite
loop. (#74952, Thomas Leonard)
* gtk/gtkmenushell.c (gtk_real_menu_shell_cycle_focus):
Fix warning when toplevel menu shell isn't a menu
bar. (Thomas Leonard, #75602)
Sun Mar 3 17:03:30 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenushell.c gtk/gtkmenubar.[ch]: Back out
changes to propagate keys to parent menu shells, since
that broke stuff; rather implement ::cycle-focus as
a key binding on GtkMenuShell rather than on GtkMenuBar.
* gtk/gtkmenushell.c (gtk_menu_shell_class_init): Add
add bindings for ::cycle-focus. (In gtkmenubar.c, were
mistakently bound to ::move-focus.)
Thu Feb 28 19:55:01 2002 Owen Taylor <otaylor@redhat.com>
* gdk/gdkkeys.c: include gdkkeysysms.h if
compiling gdk_keyval_convert_case.
* gtk/gtkmenubar.c (gtk_menu_bar_cycle_focus): Implement
<Control>Tab <Control><Shift>Tab to cycle between
all menu bars in a toplevel once one is up.
* tests/testgtk.c: Add a second menubar, this
example is already full of crack anyways.
* gtk/gtkmenushell.c (gtk_menu_shell_key_press): Padd
unhandled events up to the parent menu shell.
* gtk/gtkmenuitem.c (gtk_menu_item_select_timeout): Only
pop up the menu if the parent menu shell is still active.
* gtk/gtkcontainer.[ch] (_gtk_container_focus_sort): Add a
old_focus argument, export privately.
Thu Feb 21 16:51:17 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkaccelgroup.c (gtk_accelerator_valid): Add
GDK_ISO_Next_Group/Prev_Group/Level3_Shift/
First_Group/Last_Group to list of invalid accelerators.
(A lot more that should be added, but probably would
want a range mechanism. These are the ones found in
the standard XFree86 config files.)
* gtk/gtkbindings.c (gtk_bindings_activate): Fix problem
that broke bindings for menus.
* gtk/gtkwindow.[ch]: Export _gtk_window_activate_key()
privately.
* gtk/gtkmenushell.c (gtk_menu_shell_key_press): Use
_gtk_window_activate_key(), gtk_bindings_activate_event().
Sat Feb 2 20:16:04 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenushell.c (_gtk_menu_shell_select_first):
Non-exported _gtk_menu_select_first() function that
selects the first item of the menu in a standard
way. (Skipping tearoffs.)
* gtk/gtkmenushell.c gtk/gtkentry.c gtk/gtktextview.c
gtkmenuitem.c: Use _gtk_menu_shell_select_first().
* gtk/gtkmenuitem.c (gtk_real_menu_item_select): Remember
if we are starting the timeout from a keypress so
we can set menushell->ignore_enter properly.
* gtk/gtknotebook.c (focus_child_in): Return something
meaningful if there are no children.
* gtk/gtkmenu.c (gtk_menu_key_press): Fix precendence
problem.
Tue Jan 29 20:56:13 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtk[vh]scale.c (gtk_[vh]scale_new_with_range): Document
that the end points are included in the range. (#69783,
Jeffrey Baker)
* gtk/gtkenums.h: Deprecate GtkPreviewType,
GtkSignalRunType, GtkSideType, GtkSubmenuPlacement, GtkSubmenuDirection
(#68183, Matthias Clasen)
* gtk/gtkmenuitem.h: Remove _gtk_menu_item_set_placement() from
the public header to avoid having to use GtkSubmenuPlacement.
* gtk/{gtkmenuitem.c,gtkmenubar.c,gtkmenushell.c}: #define
GTK_MENU_INTERNALS to preserve access to GtkSubmenu*.
* gdk/gdki18n.h: Deprecate contents. (Darin Adler.)
Thu Nov 29 21:35:56 2001 Kristian Rietveld <kristian@planet.nl>
* gtk/gtkmenu.c (gtk_menu_motion_notify): add checks for
empty menu items to behave like insensitive items (#59456)
* gtk/gtkmenuitem.c (gtk_real_menu_item_activate_item): select
next item if the first item in the menu is a tear off item
(#59456-2, suggestion by Matthias Clasen)
* gtk/gtkmenushell.c (gtk_menu_shell_button_press),
(gtk_menu_shell_button_release), (gtk_menu_shell_entry_notify),
(gtk_menu_shell_leave_notify), (gtk_real_menu_shell_move_current),
(gtk_real_menu_shell_activate_current): add check, so empty
menu items behave like insensitive items (#59456)
* gtk/gtkmenuitem.[ch]: add _gtk_menu_item_is_selectable to make
the checks more readable ...
* gtk/gtkmenushell.c (gtk_menu_shell_button_press),
(gtk_menu_shell_button_release): causes the menu to dropdown if the
caption is clicked again (#64977)
