[gnome-builder/wip/chergert/glade3: 1/2] layout: add hold concept to transient sidebar for longer operations

[Christian Hergert <chergert src gnome org>]

commit dacfd13e2d70f0f5672d7b1b782dd8e29279ee9e
Author: Christian Hergert <chergert redhat com>
Date:   Wed Oct 17 20:44:32 2018 -0700

    layout: add hold concept to transient sidebar for longer operations
    
    This allows us to keep the sidebar open for longer when we know we don't
    want it to disappear.

 src/libide/layout/ide-layout-transient-sidebar.c | 36 ++++++++++++++++++++++++
 src/libide/layout/ide-layout-transient-sidebar.h |  4 +++
 2 files changed, 40 insertions(+)
---
diff --git a/src/libide/layout/ide-layout-transient-sidebar.c 
b/src/libide/layout/ide-layout-transient-sidebar.c
index 717861c6c..cfb687c4b 100644
--- a/src/libide/layout/ide-layout-transient-sidebar.c
+++ b/src/libide/layout/ide-layout-transient-sidebar.c
@@ -28,6 +28,7 @@ typedef struct
 {
   DzlSignalGroup *toplevel_signals;
   GWeakRef        view_ref;
+  gint            hold_count;
 } IdeLayoutTransientSidebarPrivate;
 
 static void ide_layout_transient_sidebar_view_destroyed (IdeLayoutTransientSidebar *self,
@@ -104,6 +105,10 @@ ide_layout_transient_sidebar_after_set_focus (IdeLayoutTransientSidebar *self,
 
   g_assert (IDE_IS_LAYOUT_TRANSIENT_SIDEBAR (self));
   g_assert (!toplevel || GTK_IS_WINDOW (toplevel));
+  g_assert (priv->hold_count >= 0);
+
+  if (priv->hold_count > 0)
+    return;
 
   /*
    * If we are currently visible, then check to see if the focus has gone
@@ -272,3 +277,34 @@ ide_layout_transient_sidebar_set_panel (IdeLayoutTransientSidebar *self,
   else
     g_warning ("Failed to locate stack containing panel");
 }
+
+void
+ide_layout_transient_sidebar_lock (IdeLayoutTransientSidebar *self)
+{
+  IdeLayoutTransientSidebarPrivate *priv = ide_layout_transient_sidebar_get_instance_private (self);
+
+  g_return_if_fail (IDE_IS_LAYOUT_TRANSIENT_SIDEBAR (self));
+  g_return_if_fail (priv->hold_count >= 0);
+
+  priv->hold_count++;
+
+  if (!dzl_dock_revealer_get_reveal_child (DZL_DOCK_REVEALER (self)))
+    dzl_dock_revealer_set_reveal_child (DZL_DOCK_REVEALER (self), TRUE);
+}
+
+void
+ide_layout_transient_sidebar_unlock (IdeLayoutTransientSidebar *self)
+{
+  IdeLayoutTransientSidebarPrivate *priv = ide_layout_transient_sidebar_get_instance_private (self);
+
+  g_return_if_fail (IDE_IS_LAYOUT_TRANSIENT_SIDEBAR (self));
+  g_return_if_fail (priv->hold_count > 0);
+
+  priv->hold_count--;
+
+  if (priv->hold_count == 0)
+    {
+      if (dzl_dock_revealer_get_reveal_child (DZL_DOCK_REVEALER (self)))
+        dzl_dock_revealer_set_reveal_child (DZL_DOCK_REVEALER (self), FALSE);
+    }
+}
diff --git a/src/libide/layout/ide-layout-transient-sidebar.h 
b/src/libide/layout/ide-layout-transient-sidebar.h
index 5b61a0c1e..ffc1b7bad 100644
--- a/src/libide/layout/ide-layout-transient-sidebar.h
+++ b/src/libide/layout/ide-layout-transient-sidebar.h
@@ -51,5 +51,9 @@ void ide_layout_transient_sidebar_set_panel (IdeLayoutTransientSidebar *self,
 IDE_AVAILABLE_IN_ALL
 void ide_layout_transient_sidebar_set_view  (IdeLayoutTransientSidebar *self,
                                              IdeLayoutView             *view);
+IDE_AVAILABLE_IN_3_32
+void ide_layout_transient_sidebar_lock      (IdeLayoutTransientSidebar *self);
+IDE_AVAILABLE_IN_3_32
+void ide_layout_transient_sidebar_unlock    (IdeLayoutTransientSidebar *self);
 
 G_END_DECLS