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listbase: Make rubberbanding a threshold drag

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This commit is contained in:
Benjamin Otte 2020-06-26 04:07:35 +02:00
parent 30488e60e2
commit dc1dbe6158
1 changed files with 12 additions and 10 deletions
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22
gtk/gtklistbase.c
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@ -23,6 +23,7 @@
#include "gtkadjustment.h"
#include "gtkbitset.h"
#include "gtkdragsource.h"
#include "gtkdropcontrollermotion.h"
#include "gtkgesturedrag.h"
#include "gtkgizmoprivate.h"
@ -1696,23 +1697,25 @@ get_selection_modifiers (GtkGesture *gesture,
*extend = TRUE;
}
static void
gtk_list_base_drag_begin (GtkGestureDrag *gesture,
double start_x,
double start_y,
GtkListBase *self)
{
gtk_list_base_start_rubberband (self, start_x, start_y);
}
static void
gtk_list_base_drag_update (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkListBase *self)
{
GtkListBasePrivate *priv = gtk_list_base_get_instance_private (self);
double start_x, start_y;
gtk_gesture_drag_get_start_point (gesture, &start_x, &start_y);
if (!priv->rubberband)
{
if (!gtk_drag_check_threshold (GTK_WIDGET (self), 0, 0, offset_x, offset_y))
return;
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
gtk_list_base_start_rubberband (self, start_x, start_y);
}
gtk_list_base_update_rubberband (self, start_x + offset_x, start_y + offset_y);
}
@ -1743,7 +1746,6 @@ gtk_list_base_set_enable_rubberband (GtkListBase *self,
if (enable)
{
priv->drag_gesture = gtk_gesture_drag_new ();
g_signal_connect (priv->drag_gesture, "drag-begin", G_CALLBACK (gtk_list_base_drag_begin), self);
g_signal_connect (priv->drag_gesture, "drag-update", G_CALLBACK (gtk_list_base_drag_update), self);
g_signal_connect (priv->drag_gesture, "drag-end", G_CALLBACK (gtk_list_base_drag_end), self);
gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (priv->drag_gesture));