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scrolledwindow: Create a synthetic motion during scrolling

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We are not doing any layout here, so this is needed to fix
the listbox demo in gtk4-demo.
This commit is contained in:
Matthias Clasen
2020-02-21 16:40:10 -05:00
parent af8e8d9a9c
commit 8df53a48cd
1 changed files with 14 additions and 0 deletions
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14
gtk/gtkscrolledwindow.c
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@@ -51,6 +51,7 @@
#include "gtktypebuiltins.h" #include "gtktypebuiltins.h"
#include "gtkviewport.h" #include "gtkviewport.h"
#include "gtkwidgetprivate.h" #include "gtkwidgetprivate.h"
#include "gtknative.h"
#include "a11y/gtkscrolledwindowaccessible.h" #include "a11y/gtkscrolledwindowaccessible.h"
@@ -3470,9 +3471,22 @@ gtk_scrolled_window_adjustment_value_changed (GtkAdjustment *adjustment,
{ {
GtkScrolledWindow *scrolled_window = user_data; GtkScrolledWindow *scrolled_window = user_data;
GtkScrolledWindowPrivate *priv = gtk_scrolled_window_get_instance_private (scrolled_window); GtkScrolledWindowPrivate *priv = gtk_scrolled_window_get_instance_private (scrolled_window);
GtkNative *native;
GdkSurface *surface;
maybe_emit_edge_reached (scrolled_window, adjustment); maybe_emit_edge_reached (scrolled_window, adjustment);
native = gtk_widget_get_native (GTK_WIDGET (scrolled_window));
if (native)
{
surface = gtk_native_get_surface (native);
if (surface)
{
g_print ("adjustment value changed\n");
//gdk_surface_ensure_motion (surface);
}
}
/* Allow overshooting for kinetic scrolling operations */ /* Allow overshooting for kinetic scrolling operations */
if (priv->deceleration_id) if (priv->deceleration_id)
return; return;