[gtk/fix-cursor-hiding: 7/7] text: Ignore synthetic motion events

[Matthias Clasen <matthiasc src gnome org>]

commit 7cd7e781e21d40ea0ae8e0891faabf6ead7bbbf1
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Mar 25 15:25:35 2021 -0400

    text: Ignore synthetic motion events
    
    We want to re-show the obscured mouse cursor when the
    user interacts with the mouse, not when the pointer position
    relative to the widget changed. So, ignore synthetic
    motion events.
    
    Fixes: #3792

 gtk/gtktext.c     | 5 +++++
 gtk/gtktextview.c | 6 ++++++
 2 files changed, 11 insertions(+)
---
diff --git a/gtk/gtktext.c b/gtk/gtktext.c
index d0711ed3f8..f17650ef9d 100644
--- a/gtk/gtktext.c
+++ b/gtk/gtktext.c
@@ -2940,6 +2940,11 @@ gtk_text_motion_controller_motion (GtkEventControllerMotion *controller,
                                    GtkText                  *self)
 {
   GtkTextPrivate *priv = gtk_text_get_instance_private (self);
+  GdkEvent *event;
+
+  event = gtk_event_controller_get_current_event (GTK_EVENT_CONTROLLER (controller));
+  if (gdk_motion_event_is_synthetic (event))
+    return;
 
   if (priv->mouse_cursor_obscured)
     {
diff --git a/gtk/gtktextview.c b/gtk/gtktextview.c
index 13b0e67752..7580f20493 100644
--- a/gtk/gtktextview.c
+++ b/gtk/gtktextview.c
@@ -5712,6 +5712,12 @@ gtk_text_view_motion (GtkEventController *controller,
                       double              y,
                       gpointer            user_data)
 {
+  GdkEvent *event;
+
+  event = gtk_event_controller_get_current_event (GTK_EVENT_CONTROLLER (controller));
+  if (gdk_motion_event_is_synthetic (event))
+    return;
+
   gtk_text_view_unobscure_mouse_cursor (GTK_TEXT_VIEW (user_data));
 }