[gnome-builder] debugger: place controls above the editor

[Christian Hergert <chergert src gnome org>]

commit f50670b726df0b17ef23a4601016c73ee5676961
Author: Christian Hergert <chergert redhat com>
Date:   Sat Sep 2 16:08:39 2017 -0700

    debugger: place controls above the editor
    
    This moves the controls to sit above the editor, where they cannot be
    obscurred by switching panels and such. I think this is more contextual
    too, since we are stepping through code (so it should be near the code).

 libide/debugger/ide-debugger-editor-addin.c |   15 +++++++--------
 1 files changed, 7 insertions(+), 8 deletions(-)
---
diff --git a/libide/debugger/ide-debugger-editor-addin.c b/libide/debugger/ide-debugger-editor-addin.c
index 66f918d..5af8cb6 100644
--- a/libide/debugger/ide-debugger-editor-addin.c
+++ b/libide/debugger/ide-debugger-editor-addin.c
@@ -264,12 +264,12 @@ on_frame_activated (IdeDebuggerEditorAddin *self,
 static void
 ide_debugger_editor_addin_add_ui (IdeDebuggerEditorAddin *self)
 {
-  IdeWorkbenchHeaderBar *headerbar;
   IdeWorkbench *workbench;
   GtkWidget *scroller;
   GtkWidget *box;
   GtkWidget *hpaned;
   GtkWidget *utilities;
+  GtkWidget *overlay;
 
   g_assert (IDE_IS_DEBUGGER_EDITOR_ADDIN (self));
   g_assert (IDE_IS_EDITOR_PERSPECTIVE (self->editor));
@@ -278,19 +278,18 @@ ide_debugger_editor_addin_add_ui (IdeDebuggerEditorAddin *self)
   g_signal_connect ((ptr), "destroy", G_CALLBACK (gtk_widget_destroyed), &(ptr))
 
   workbench = ide_widget_get_workbench (GTK_WIDGET (self->editor));
-  headerbar = ide_workbench_get_headerbar (workbench);
+  overlay = ide_editor_perspective_get_overlay (self->editor);
 
   self->controls = g_object_new (IDE_TYPE_DEBUGGER_CONTROLS,
                                  "transition-duration", 500,
-                                 "transition-type", GTK_REVEALER_TRANSITION_TYPE_SLIDE_RIGHT,
+                                 "transition-type", GTK_REVEALER_TRANSITION_TYPE_SLIDE_UP,
                                  "reveal-child", FALSE,
-                                 "visible", FALSE,
+                                 "visible", TRUE,
+                                 "halign", GTK_ALIGN_CENTER,
+                                 "valign", GTK_ALIGN_END,
                                  NULL);
   OBSERVE_DESTROY (self->controls);
-  ide_workbench_header_bar_insert_left (headerbar,
-                                        GTK_WIDGET (self->controls),
-                                        GTK_PACK_START,
-                                        100);
+  gtk_overlay_add_overlay (GTK_OVERLAY (overlay), GTK_WIDGET (self->controls));
 
   self->panel = g_object_new (DZL_TYPE_DOCK_WIDGET,
                               "title", _("Debugger"),