[gtk+] revealer: Request child size for NONE transition type

[Matthias Clasen <matthiasc src gnome org>]

commit ec1984bd9314fd3871f7550d8a3b0667a6f9d204
Author: Timm Bäder <mail baedert org>
Date:   Sun Jun 4 18:33:08 2017 +0200

    revealer: Request child size for NONE transition type
    
    Previously, we would request a size of 0×0 when the transition type was
    NONE and the child un-revealed, making the revealer in this case a
    gtk_widget_set_visible replacement. Instead, to the exact same thing we
    do in the CROSSFADE case and request the child size instead. This also
    keeps the revealer from under allocating the child when the transition
    type is set to NONE.

 gtk/gtkrevealer.c             |   17 +++++++++++------
 testsuite/gtk/revealer-size.c |    4 ++--
 2 files changed, 13 insertions(+), 8 deletions(-)
---
diff --git a/gtk/gtkrevealer.c b/gtk/gtkrevealer.c
index 32b87cd..2dbe9c4 100644
--- a/gtk/gtkrevealer.c
+++ b/gtk/gtkrevealer.c
@@ -385,10 +385,17 @@ gtk_revealer_set_position (GtkRevealer *revealer,
   child = gtk_bin_get_child (GTK_BIN (revealer));
   if (child != NULL &&
       new_visible != gtk_widget_get_child_visible (child))
-    gtk_widget_set_child_visible (child, new_visible);
+    {
+      gtk_widget_set_child_visible (child, new_visible);
+      gtk_widget_queue_resize (GTK_WIDGET (revealer));
+    }
 
   transition = effective_transition (revealer);
-  if (transition == GTK_REVEALER_TRANSITION_TYPE_CROSSFADE)
+  if (transition == GTK_REVEALER_TRANSITION_TYPE_NONE)
+    {
+      gtk_widget_queue_draw (GTK_WIDGET (revealer));
+    }
+  else if (transition == GTK_REVEALER_TRANSITION_TYPE_CROSSFADE)
     {
       gtk_widget_set_opacity (GTK_WIDGET (revealer), priv->current_pos);
       gtk_widget_queue_draw (GTK_WIDGET (revealer));
@@ -550,8 +557,7 @@ set_height (GtkRevealer *revealer,
   GtkRevealerTransitionType transition;
 
   transition = effective_transition (revealer);
-  if (transition == GTK_REVEALER_TRANSITION_TYPE_NONE ||
-      transition == GTK_REVEALER_TRANSITION_TYPE_SLIDE_UP ||
+  if (transition == GTK_REVEALER_TRANSITION_TYPE_SLIDE_UP ||
       transition == GTK_REVEALER_TRANSITION_TYPE_SLIDE_DOWN)
     {
       *minimum_height = round (*minimum_height * priv->current_pos);
@@ -568,8 +574,7 @@ set_width (GtkRevealer *revealer,
   GtkRevealerTransitionType transition;
 
   transition = effective_transition (revealer);
-  if (transition == GTK_REVEALER_TRANSITION_TYPE_NONE ||
-      transition == GTK_REVEALER_TRANSITION_TYPE_SLIDE_LEFT ||
+  if (transition == GTK_REVEALER_TRANSITION_TYPE_SLIDE_LEFT ||
       transition == GTK_REVEALER_TRANSITION_TYPE_SLIDE_RIGHT)
     {
       *minimum_width = round (*minimum_width * priv->current_pos);
diff --git a/testsuite/gtk/revealer-size.c b/testsuite/gtk/revealer-size.c
index fefae48..4fbea9c 100644
--- a/testsuite/gtk/revealer-size.c
+++ b/testsuite/gtk/revealer-size.c
@@ -85,13 +85,13 @@ slide_left_no_animations ()
 static void
 none_animations ()
 {
-  keep_size (0, GTK_REVEALER_TRANSITION_TYPE_NONE, TRUE);
+  keep_size (KEEP_WIDTH | KEEP_HEIGHT, GTK_REVEALER_TRANSITION_TYPE_NONE, TRUE);
 }
 
 static void
 none_no_animations ()
 {
-  keep_size (0, GTK_REVEALER_TRANSITION_TYPE_NONE, FALSE);
+  keep_size (KEEP_WIDTH | KEEP_HEIGHT, GTK_REVEALER_TRANSITION_TYPE_NONE, FALSE);
 }
 
 static void