This way, we can support external libraries providing implementations of
GtkMediaFile.
We also add a media backend called 'nomedia' that can be enabled to not
compile any support for GtkMediaFile. This is useful when people want to
statically compile GTK into an application that does not use media.
For now, this option is the default.
We also support a new environment variable GTK_MEDIA that allows
selecting the implementation to use.
GTK_MEDIA=help can be used to get info about the available
implementations.
Add an extension point called gtk-im-module, which requires
the type GtkIMContext. Simplify the loading by using GIO
infrastructure. Drop the locale filtering for now, I don't
think it is really necessary nowadays.
Convert existing platform modules to gio modules.
Sill to do: Drop the conditional build machinery.
Either always include them, or never.
The code assigning the display to the debug_flags struct gets only
called when the default display changes, which never happens
when there already is one.
This makes it call the change callback in case a display is already
there.
The same fix was applied to gtk3 in !26 where calling gdk_init()
before gtk_init() would trigger this case. With gdk_init() gone
in master this is less likely to happen, but still possible
if gdk_display_open() is called before gtk_init().
See https://gitlab.gnome.org/GNOME/pygobject/issues/166
Remove all the old 2.x and 3.x version annotations.
GTK+ 4 is a new start, and from the perspective of a
GTK+ 4 developer all these APIs have been around since
the beginning.
GDK has a lock to mark critical sections inside the backends.
Additionally, code that would re-enter into the GTK main loop was
supposed to hold the lock.
Back in the Good Old Days™ this was guaranteed to kind of work only on
the X11 backend, and would cause a neat explosion on any other GDK
backend.
During GTK+ 3.x we deprecated the API to enter and leave the critical
sections, and now we can remove all the internal uses of the lock, since
external API that uses GTK+ 4.x won't be able to hold the GDK lock.
https://bugzilla.gnome.org/show_bug.cgi?id=793124
These functions are entirely trivial, their documentation
is much longer than their implementation, and it contains
an example that is annotated as "don't do this"...
event_widget is not modified anymore after the assignment from
handle_pointing event and we need the event's user data set for the
_gtk_window_check_handle_wm_event call.
It won't stand true anymore that the GdkEventType argument is the
first field of the GdkEvent* structs. All callers have been updated
to use event->any.type instead.
For a start, this makes gtk_main() work different from g_main_loop_run()
calls.
But most importantly, modern GDK does proper syncing itself and doesn't
need to rely on a catch-all to get it right.
This patch makes that work using 1 of 2 options:
1. Add all missing enums to the switch statement
or
2. Cast the switch argument to a uint to avoid having to do that (mostly
for GdkEventType).
I even found a bug while doing that: clearing a GtkImage with a surface
did not notify thae surface property.
The reason for enabling this flag even though it is tedious at times is
that it is very useful when adding values to an enum, because it makes
GTK immediately warn about all the switch statements where this enum is
relevant.
And I expect changes to enums to be frequent during the GTK4 development
cycle.
Those should be interpreted by widget-local gestures, not guessed at a
high level with no notions of the specific context. Users will want
GtkGestureMultiPress to replace these events.
This change is made for consistency, it doesn't make sense to expose
one-way propagation, as it can only break expectations from GTK+. This
function might be made entirely private in the future, but it still
makes sense to do this in one go for our internal usecases.
As we now refrain from sending the crossing events if there's an
implicit grab, those events must be sent on button release when
the implicit grab is broken.
Check the grab widget (both explicit and implicit) and check for a cursor
from the target widget up to this grab widget. If the target widget is
outside the grab widget, only the grab wigdet's cursor will be checked.
This also means that we have to ensure the cursor is updated on button
releases, as an implicit grab being deactivated must trigger a cursor
lookup from the target widget.
Unlike GTK+ grabs which are global to all/one device, the implicit grab
is per focus, which means each may have implicit grabs on different or
the same widget.
Implement target finding per-pointer/touchpoint through GtkPointerFocus and
_gtk_toplevel_pick(). Focus changes are handled through the emission of
crossing events between the old target and the new one.
gtk_init() removed its support for supporting arguments, so we ought to do
likewise for Windows, which actually defines items that call gtk_init()
the old way (and also get rid of argument support in those functions,
since the direction is to not support them).
https://bugzilla.gnome.org/show_bug.cgi?id=773299
We want to simplify our initialization code and remove all commandline
argument handling from it. The first stop for this is to reduce the
number of gtk_init variants we have.
This causes the snapshotting algorithm to dump all widget nodes into
their own container node. We then name that group accordingly (ie
"GtkSwitch<0xdeadbeef>") so you can easily see which node belongs where.
The feature is toggleable in the inspector's visual tab.
There's a few problems with it, becuse GtkSnapshot optimized container
nodes away if they are not needed, so we are losing some widgets...
Includes the ability to turn on updates in the inspector. Animations are
now run via a tick function which allows us to neatly overlay a
semi-transparent red rectangle and fade it out over time.
It also probably enables way more, but somebody with more UI neatness
than me needs to figure out what it eanbles first...
The update tracking code was ugly and using deprecated drawing APIs. It
was also in the wrong place.
So instead of trying to keep it working, I'll remove it. We need to find
a better way to put it and make it work there.
_gtk_accessibility_init() only gets called if the default
display changes, but in case gdk_init() is called before gtk_init()
the default display is already set and no property notification occurs.
This can happen quite easily in pygobject where
"from gi.repository import Gdk, Gtk"
will call gdk_init() followed by gtk_init() in the Python overrides.
This fixes it by checking for a default display in all cases.
Defer a11y initialization until we have a display. A11y initialization
causes widget classes to be initalized, which in turn needs some
backend-specific information about modifier masks that can't be
obtained before we have a display.
https://bugzilla.gnome.org/show_bug.cgi?id=736125
This is implicitly done for us in the case of grabs on windows from other
groups, but we must perform this check explicitly for grabs with
owner_events=True on windows from the same group, in that case the window
would handle the events as if there was no grab.
https://bugzilla.gnome.org/show_bug.cgi?id=752327
Popovers may be spawn when there's GTK+ grabs somewhere else (eg.
text selection popover/handles in an entry in a modal popover). When
this happens, events go to the grab widget (in this case the modal
popover) and are effectively ignored by the event widget, even though
it's can be conceptually a child of the grab widget.
To get away with this, tweak a bit gtk_main_do_event(), so events going
to popovers that are related to grab_widget or a child of it are received,
as it would happen with regular children of grab_widget.
https://bugzilla.gnome.org/show_bug.cgi?id=750993
The changes in commit 13e22e2030 made
_gtk_window_check_handle_wm_event() indirectly depend on
gtk_get_current_event_time() which relies on the current event being
available on the current_events stack.
Since the current event is only pushed on the stack afterwards we get
an invalid timestamp which breaks ewmh window moving.
This fixes the issue by pushing the current event before we start
relying on it being there in gtk_main_do_event() and, as a byproduct,
also fixes a potential memory leak when we have a rewritten event and
return early due to _gtk_window_check_handle_wm_event() being TRUE.
https://bugzilla.gnome.org/show_bug.cgi?id=750384
The gesture is hooked to the capture phase, so it works for buttons in
header bars and whatnot. In order to be friendly to the widget it is
capturing events from, an ugly hack is in place to avoid capturing
events when the target widget has a gesture that would consume motion
events.
The current way of exposing GDK API that should be considered internal
to GTK+ is to append a 'libgtk_only' suffix to the function name; this
is not really safe.
GLib has been using a slightly different approach: a private table of
function pointers, and a macro that allows accessing the desired symbol
inside that vtable.
We can copy the approach, and deprecate the 'libgtk_only' symbols in
lieu of outright removal.
https://bugzilla.gnome.org/show_bug.cgi?id=739781
Introduce a new debug category "actions" and write some messages from
GtkActionHelper about if we can find the actions or not.
We will probably soon want to add some similar messages to
GtkMenuTrackerItem.
https://bugzilla.gnome.org/show_bug.cgi?id=733965
Prevent a segfault in unknown circumstances, and break the ignore
deprecations wrapper out from the if statement so that we don't
cover too much ground by accident.
This reverts commit b875572f2a.
Apps like Abiword, gnumeric and gnome-chess, and toolkits like
ClutterGTK were all using this for various purposes, and this made them
break. Bring back this feature for now.
It still won't work under Wayland.
gtk_widget_set_double_buffered is now deprecated, and we don't support
non-double-buffered widgets. This means that under normal circumstances,
paints are never outside of a begin_paint / end_paint sequence, which
natively-double-buffered backends like Wayland can't possibly support.
Without this information introspection-based consumers don't realize
they can include context information, but instead think that they
receive an extra gpointer argument (which they don't know how to
handle).
https://bugzilla.gnome.org/show_bug.cgi?id=730745
Add gdk_device_get_last_event_window(), and use to implement the window
tracking we need for synthesizing crossing events for sensitivity changes
and gtk grabs, rather than keeping the information in qdata and updating
it based when GTK+ gets events.
https://bugzilla.gnome.org/show_bug.cgi?id=726187
Try to do a better job of keeping example content
from being too wide. It is often rendered as <pre>
text so the only time we can wrap it is in the source.
It is best to full break lines at all punctuation and
to try to keep the width under 70 chars or so.
