[gnome-builder/wip/gtk4-port] libide/gui: add canBuild() keybinding helper

[Christian Hergert <chergert src gnome org>]

commit 8d94e4344a88d25d9be4d61cde3ac31106dce755
Author: Christian Hergert <chergert redhat com>
Date:   Tue May 10 17:28:56 2022 -0700

    libide/gui: add canBuild() keybinding helper

 src/libide/gui/gtk/keybindings.gsl | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/src/libide/gui/gtk/keybindings.gsl b/src/libide/gui/gtk/keybindings.gsl
index 608134968..5d41f2f96 100644
--- a/src/libide/gui/gtk/keybindings.gsl
+++ b/src/libide/gui/gtk/keybindings.gsl
@@ -29,6 +29,10 @@ def hasProject()
   (workbench != null) && workbench.has_project()
 end
 
+def canBuild()
+  hasProject() && Ide.BuildManager.from_context(workbench.context).get_can_build()
+end
+
 def canEdit()
   (workspace != null) && (typeof(workspace) != typeof(Ide.GreeterWorkspace))
 end