Now that labels and images no longer use x/yalign in their code,
we need to make gtk_misc_set_alignment set the h/valign for these
widgets, to keep it stumbling along until its final demise.
https://bugzilla.gnome.org/show_bug.cgi?id=730613
Those get in the middle more than help on these widgets, the widget
is already packed with clickable areas and having handles (and their
invisible clickable area around) hovering above don't help, plus the
purpose in most likely numeric values is a bit doubtful.
All touch events are either consumed by the up/down panels, or
the swipe gesture, all GtkEntry handling of touch events on the text
window is avoided, so handles to not appear anymore.
the "bubble" phase used to run before event handlers before GTK_PHASE_TARGET
was added, in order to keep phases in the expected order, move GTK_PHASE_BUBBLE
to be run (still invariably) after event handlers.
The only behavioral change should be wrt widgets wanting mixed event handler/
gesture handling, they could previously attach the gesture to the bubble phase
and check for gtk_gesture_is_active() in the event handler to bail out, they'll
have to use GTK_PHASE_CAPTURE for that purpose from now on.
The handle is still centered horizontally, but the extra vertical
space wasn't taken into account, leading to misplacing the dragging
point (and the handle) during motion events.
GtkPaned may just capture pointer events because the child widget
doesn't happen to have GDK_TOUCH_MASK set, resort to checking the
device in that case.
Dragging is all handled by a GtkGesturePan now, matching the
paned orientation.
On touch events, a wider area is listened for, so touch events
don't need to be as accurate to initiate dragging, if no dragging
is truly initiated in this case, events are just forwarded for
child widgets to handle.
A pan gesture is used to handle switch dragging, which is only triggered
by horizontal panning movements. A multipress gesture handles the cases
where clicking without dragging happens, just toggling the switch.
A pan gesture is optionally attached if there is only one scrolling direction, the pan
gesture orientation is changed so movements tangential to the scroll direction get
scrolling cancelled (The pan gesture is automatically denied when that happens, and
that state change spreads to the others gestures in the group). If the pan direction
happens in the expected directions, no cancellation happens, and scrolling eventually
takes place.
Multiple calls are supposedly allowed to change the phase (although
unlikely to happen), so remove the g_return_if_fail() checking whether
the controller was already added.
Presses alternatively show and dismiss the popover, the popover is still
always shown invariably after any dragging happens (either text selection,
or dragging a text handle)
Presses alternatively show and dismiss the popover, the popover is still
always shown invariably after any dragging happens (either text selection,
or dragging a text handle)
Similarly to GtkTextView, a GtkGestureMultiPress gesture handles
button/touch presses to initiate one selection mode or other, and
a GtkGestureDrag is used to handle text selection and DnD checks.
The code from button press/release, motion, and grab_notify handlers
has been shuffled into the actions triggered by those gestures.
