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views/dazzling-month-view: Tentatively support wheel scroll

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Add a dedicated discrete scroll event controller, and ensure
each event controller handles the right types of events.
This commit is contained in:
Georges Basile Stavracas Neto
2023-08-11 15:13:44 -03:00
parent 3f0b1e57de
commit 3a36f75877
2 changed files with 57 additions and 2 deletions
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src/gui/views/gcal-dazzling-month-view.c
+50 -1
View File
@@ -388,12 +388,60 @@ on_scroll_controller_scroll_cb (GtkEventControllerScroll *scroll_controller,
gdouble dy,
GcalDazzlingMonthView *self)
{
GdkEvent *current_event;
GCAL_ENTRY;
current_event = gtk_event_controller_get_current_event (GTK_EVENT_CONTROLLER (scroll_controller));
switch (gdk_scroll_event_get_direction (current_event))
{
case GDK_SCROLL_SMOOTH:
cancel_row_offset_animation (self);
cancel_deceleration (self);
offset_and_shuffle_rows (self, dy);
GCAL_RETURN (GDK_EVENT_STOP);
default:
GCAL_RETURN (GDK_EVENT_PROPAGATE);
}
}
static gboolean
on_discrete_scroll_controller_scroll_cb (GtkEventControllerScroll *scroll_controller,
gdouble dx,
gdouble dy,
GcalDazzlingMonthView *self)
{
GdkEvent *current_event;
GCAL_ENTRY;
current_event = gtk_event_controller_get_current_event (GTK_EVENT_CONTROLLER (scroll_controller));
switch (gdk_scroll_event_get_direction (current_event))
{
case GDK_SCROLL_UP:
move_bottom_row_to_top (self);
break;
case GDK_SCROLL_DOWN:
move_top_row_to_bottom (self);
break;
default:
GCAL_RETURN (GDK_EVENT_PROPAGATE);
}
gtk_widget_remove_css_class (GTK_WIDGET (self), "scrolling");
cancel_row_offset_animation (self);
cancel_deceleration (self);
update_active_date (self);
dump_row_ranges (self);
offset_and_shuffle_rows (self, dy);
self->row_offset = 0.0;
gtk_widget_queue_allocate (GTK_WIDGET (self));
GCAL_RETURN (GDK_EVENT_STOP);
}
@@ -1005,6 +1053,7 @@ gcal_dazzling_month_view_class_init (GcalDazzlingMonthViewClass *klass)
gtk_widget_class_bind_template_child_full (widget_class, "label_5", FALSE, G_STRUCT_OFFSET (GcalDazzlingMonthView, weekday_label[5]));
gtk_widget_class_bind_template_child_full (widget_class, "label_6", FALSE, G_STRUCT_OFFSET (GcalDazzlingMonthView, weekday_label[6]));
gtk_widget_class_bind_template_callback (widget_class, on_discrete_scroll_controller_scroll_cb);
gtk_widget_class_bind_template_callback (widget_class, on_scroll_controller_scroll_begin_cb);
gtk_widget_class_bind_template_callback (widget_class, on_scroll_controller_scroll_cb);
gtk_widget_class_bind_template_callback (widget_class, on_scroll_controller_scroll_end_cb);
src/gui/views/gcal-dazzling-month-view.ui
+7 -1
View File
@@ -5,7 +5,6 @@
<child>
<object class="GtkEventControllerScroll">
<!-- TODO: Kinetic -->
<property name="flags">vertical|kinetic</property>
<signal name="scroll-begin" handler="on_scroll_controller_scroll_begin_cb" object="GcalDazzlingMonthView" swapped="no" />
<signal name="scroll" handler="on_scroll_controller_scroll_cb" object="GcalDazzlingMonthView" swapped="no" />
@@ -14,6 +13,13 @@
</object>
</child>
<child>
<object class="GtkEventControllerScroll">
<property name="flags">vertical|discrete</property>
<signal name="scroll" handler="on_discrete_scroll_controller_scroll_cb" object="GcalDazzlingMonthView" swapped="no" />
</object>
</child>
<!-- Header -->
<child type="header">
<object class="GtkBox">