G-I has been updated to not require a Windows GCC installation
anymore to generate the .gir files, so update the NMake Makefiles
that are used for this purpose.
As a result, it is no longer necessary to define time_t for the .gir
generation as we are on the same compiler throughout the process.
GTK+ now uses pango_attr_foreground_alpha_new, pango_attr_background_alpha_new,
PANGO_ATTR_FOREGROUND_ALPHA, PANGO_ATTR_BACKGROUND_ALPHA,
pango_renderer_set_alpha, pango_renderer_get_alpha, which were all added
after 1.37.2.
wl_log() currently logs using G_LOG_LEVEL_ERROR
(which is fatal). The wayland client library doesn't
expect this behavior. It uses wl_log to log recoverable
errors.
This commit changes the log level to G_LOG_LEVEL_DEBUG
instead.
https://bugzilla.gnome.org/show_bug.cgi?id=753635
On wayland, the gestures protocol defines a wl_pointer_gestures global
object, that will match in number with wl_seats, swipe and pinch
interfaces can be obtained from it, which events are translated into
GdkEventTouchpadSwipe/Pinch events.
These will be mutually exclusive with touch events, so it won't
be possible to trigger gestures through mixed input and whatnot.
The accounting of touchpad events is slightly different, there
will be a single internal PointData struct, stored in the hashtable
with the NULL event sequence/key (same than pointer events in
this regard), just that the events stored will be GdkEventTouchpad*,
so will hold information about all fingers at once.
But this difference is just internal, the GtkGesture API doesn't
make explicit assumptions about the number of points (the closest
to a per-point query API is gtk_gesture_get_sequences()). All
signals emitted just contain the last changed GdkEventSequence,
and API takes GdkEventSequences, so everything is consistent with
sequence=NULL for touchpad events.
Along the code, we're basically asking for 1) the total count of
touchpoints, and 2) the number of active touchpoints (not denied
nor ended).
Wrap both usecases into a _gtk_gesture_get_n_physical_touchpoints(),
and replace all occurrences.
The gestures that don't want touchpad gesture events are majority,
even those that want such events will only listen to subsets (eg.
pinch, swipe,...).
So it makes sense to ignore touchpad events by default, and let
subclasses opt those in.
This will be used right before handle_event() in order to filter
out events, useful to make the previous "no touchpad events" behavior
the default, and have gesture subclasses include manually the touchpad
events they handle.
For all other events, we run the bubble phase deep in the specific
::motion/button-press/release/touch handlers.
For touchpad events, it doesn't make sense to use GtkWidgetClass
slots if the intended way to deal with these are gestures, so we
run the bubble phase directly from gtk_widget_event_internal().
