[goobox] avoid window title resizes

[Paolo Bacchilega <paobac src gnome org>]

commit 7481acb47b2a4530ca2826d0966e98033f193108
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sat Dec 29 12:53:28 2018 +0100

    avoid window title resizes

 src/goo-player-progress.c | 69 ++++++++++++++++++++++++-----------------------
 1 file changed, 35 insertions(+), 34 deletions(-)
---
diff --git a/src/goo-player-progress.c b/src/goo-player-progress.c
index 0772123..8b83226 100644
--- a/src/goo-player-progress.c
+++ b/src/goo-player-progress.c
@@ -33,6 +33,8 @@
 #define PLAY_BUTTON_SIZE GTK_ICON_SIZE_SMALL_TOOLPROGRESS
 #define MIN_WIDTH 500
 #define UPDATE_TIMEOUT 50
+#define CHILD_NAME_TIME_SCALE "child-name"
+#define CHILD_NAME_TITLE "title"
 
 
 struct _GooPlayerProgressPrivate {
@@ -42,6 +44,7 @@ struct _GooPlayerProgressPrivate {
        GtkWidget *time_scale;
        GtkWidget *time_box;
        GtkWidget *title;
+       GtkWidget *stack;
        gint64     track_length;
        gint64     current_time;
        gboolean   dragging;
@@ -197,26 +200,44 @@ goo_player_progress_init (GooPlayerProgress *self)
 }
 
 
+static void
+goo_player_progress_update_state (GooPlayerProgress *self)
+{
+       GooPlayerState state;
+
+       if (self->priv->player == NULL)
+               return;
+
+       state = goo_player_get_state (self->priv->player);
+
+       if ((state == GOO_PLAYER_STATE_PLAYING)
+           || (state == GOO_PLAYER_STATE_PAUSED))
+       {
+               gtk_stack_set_visible_child_name (GTK_STACK (self->priv->stack), CHILD_NAME_TIME_SCALE);
+       }
+       else {
+               gtk_stack_set_visible_child_name (GTK_STACK (self->priv->stack), CHILD_NAME_TITLE);
+       }
+}
+
+
 static void
 goo_player_progress_construct (GooPlayerProgress *self)
 {
-       GtkWidget *frame;
        GtkWidget *main_box;
 
-       frame = gtk_event_box_new ();
-       gtk_widget_show (frame);
-       gtk_box_pack_start (GTK_BOX (self), frame, TRUE, TRUE, 0);
-
-       main_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+       self->priv->stack = main_box = gtk_stack_new ();
+       gtk_stack_set_vhomogeneous (GTK_STACK (main_box), TRUE);
+       gtk_stack_set_transition_type (GTK_STACK (main_box), GTK_STACK_TRANSITION_TYPE_SLIDE_UP_DOWN);
        gtk_container_set_border_width (GTK_CONTAINER (main_box), 10);
        gtk_box_set_spacing (GTK_BOX (main_box), 6);
-       gtk_box_set_homogeneous (GTK_BOX (main_box), FALSE);
        gtk_widget_show (main_box);
-       gtk_container_add (GTK_CONTAINER (frame), main_box);
+       gtk_box_pack_start (GTK_BOX (self), main_box, TRUE, TRUE, 0);
 
        self->priv->time_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
-       gtk_widget_set_no_show_all (self->priv->time_box, TRUE);
-       gtk_box_pack_start (GTK_BOX (main_box), self->priv->time_box, TRUE, FALSE, 0);
+       gtk_widget_set_halign (self->priv->time_box, GTK_ALIGN_CENTER);
+       gtk_widget_show (self->priv->time_box);
+       gtk_stack_add_named (GTK_STACK (main_box), self->priv->time_box, CHILD_NAME_TIME_SCALE);
 
        self->priv->current_time_label = gtk_label_new (NULL);
        gtk_label_set_xalign (GTK_LABEL (self->priv->current_time_label), 1.0);
@@ -243,7 +264,8 @@ goo_player_progress_construct (GooPlayerProgress *self)
        gtk_label_set_single_line_mode (GTK_LABEL (self->priv->title), TRUE);
        gtk_label_set_ellipsize (GTK_LABEL (self->priv->title), PANGO_ELLIPSIZE_END);
        gtk_style_context_add_class (gtk_widget_get_style_context (self->priv->title), "title");
-       gtk_box_pack_start (GTK_BOX (main_box), self->priv->title, TRUE, FALSE, 0);
+       gtk_widget_show (self->priv->title);
+       gtk_stack_add_named (GTK_STACK (main_box), self->priv->title, CHILD_NAME_TITLE);
 
        /* signals */
 
@@ -259,6 +281,8 @@ goo_player_progress_construct (GooPlayerProgress *self)
                          "button_release_event",
                          G_CALLBACK (time_scale_button_release_cb),
                          self);
+
+       goo_player_progress_update_state (self);
 }
 
 
@@ -360,29 +384,6 @@ goo_player_progress_set_sensitive (GooPlayerProgress *self,
 }
 
 
-static void
-goo_player_progress_update_state (GooPlayerProgress *self)
-{
-       GooPlayerState state;
-
-       if (self->priv->player == NULL)
-               return;
-
-       state = goo_player_get_state (self->priv->player);
-
-       if ((state == GOO_PLAYER_STATE_PLAYING)
-           || (state == GOO_PLAYER_STATE_PAUSED))
-       {
-               gtk_widget_show (self->priv->time_box);
-               gtk_widget_hide (self->priv->title);
-       }
-       else {
-               gtk_widget_hide (self->priv->time_box);
-               gtk_widget_show (self->priv->title);
-       }
-}
-
-
 static void
 player_state_changed_cb (GooPlayer     *player,
                         GooPlayerProgress *self)