[gtk+/gestures] spinbutton: Avoid touch text handles to pop up

[Carlos Garnacho <carlosg src gnome org>]

commit 50a32784a47e678e70680b5b272bb4fb5576aaf4
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu May 22 16:04:03 2014 +0200

    spinbutton: Avoid touch text handles to pop up
    
    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.

 gtk/gtkspinbutton.c |   45 ++++++++++++++++-----------------------------
 1 files changed, 16 insertions(+), 29 deletions(-)
---
diff --git a/gtk/gtkspinbutton.c b/gtk/gtkspinbutton.c
index 590e4a6..90857af 100644
--- a/gtk/gtkspinbutton.c
+++ b/gtk/gtkspinbutton.c
@@ -166,7 +166,6 @@ struct _GtkSpinButtonPrivate
 
   GtkOrientation orientation;
 
-  GtkGesture *long_press_gesture;
   GtkGesture *swipe_gesture;
 
   guint          button        : 2;
@@ -645,23 +644,22 @@ gtk_spin_button_get_property (GObject      *object,
 }
 
 static void
-long_press_action (GtkGestureLongPress *gesture,
-                   gdouble              x,
-                   gdouble              y,
-                   GtkSpinButton       *spin_button)
+swipe_gesture_begin (GtkGesture       *gesture,
+                     GdkEventSequence *sequence,
+                     GtkSpinButton    *spin_button)
 {
-  gtk_gesture_set_state (spin_button->priv->swipe_gesture,
-                         GTK_EVENT_SEQUENCE_DENIED);
-}
+  GdkEventSequence *current;
+  const GdkEvent *event;
 
-static void
-long_press_cancel_action (GtkGestureLongPress *gesture,
-                          gdouble              x,
-                          gdouble              y,
-                          GtkSpinButton       *spin_button)
-{
-  gtk_gesture_set_state (spin_button->priv->swipe_gesture,
-                         GTK_EVENT_SEQUENCE_CLAIMED);
+  current = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
+  event = gtk_gesture_get_last_event (gesture, current);
+
+  if (event->any.window == spin_button->priv->up_panel ||
+      event->any.window == spin_button->priv->down_panel)
+    gtk_gesture_set_state (gesture, GTK_EVENT_SEQUENCE_DENIED);
+
+  gtk_gesture_set_state (gesture, GTK_EVENT_SEQUENCE_CLAIMED);
+  gtk_widget_grab_focus (GTK_WIDGET (spin_button));
 }
 
 static void
@@ -671,9 +669,6 @@ swipe_gesture_update (GtkGesture       *gesture,
 {
   gdouble vel_y;
 
-  if (gtk_gesture_get_sequence_state (gesture, sequence) != GTK_EVENT_SEQUENCE_CLAIMED)
-    return;
-
   gtk_gesture_swipe_get_velocity (GTK_GESTURE_SWIPE (gesture), NULL, &vel_y);
   gtk_spin_button_real_spin (spin_button, -vel_y / 20);
 }
@@ -714,15 +709,10 @@ gtk_spin_button_init (GtkSpinButton *spin_button)
 
   gtk_widget_add_events (GTK_WIDGET (spin_button), GDK_SCROLL_MASK);
 
-  priv->long_press_gesture = gtk_gesture_long_press_new (GTK_WIDGET (spin_button));
-  gtk_gesture_attach (priv->long_press_gesture, GTK_PHASE_CAPTURE);
-  g_signal_connect (priv->long_press_gesture, "pressed",
-                    G_CALLBACK (long_press_action), spin_button);
-  g_signal_connect (priv->long_press_gesture, "cancelled",
-                    G_CALLBACK (long_press_cancel_action), spin_button);
-
   priv->swipe_gesture = gtk_gesture_swipe_new (GTK_WIDGET (spin_button));
   gtk_gesture_attach (priv->swipe_gesture, GTK_PHASE_CAPTURE);
+  g_signal_connect (priv->swipe_gesture, "begin",
+                    G_CALLBACK (swipe_gesture_begin), spin_button);
   g_signal_connect (priv->swipe_gesture, "update",
                     G_CALLBACK (swipe_gesture_update), spin_button);
 }
@@ -741,9 +731,6 @@ gtk_spin_button_finalize (GObject *object)
   if (priv->up_panel_context)
     g_object_unref (priv->up_panel_context);
 
-  gtk_gesture_detach (priv->long_press_gesture);
-  g_object_unref (priv->long_press_gesture);
-
   gtk_gesture_detach (priv->swipe_gesture);
   g_object_unref (priv->swipe_gesture);