diff -r 000000000000 -r 99d80cbe2eb4 plover-gtk/transactionhelper.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plover-gtk/transactionhelper.h	Mon Apr 18 15:04:47 2016 +0100
@@ -0,0 +1,102 @@
+#ifndef __PLOVER_TRANSACTION_HELPER_H__
+#define __PLOVER_TRANSACTION_HELPER_H__
+
+#include <gtk/gtk.h>
+#include <plover/packageset.h>
+#include <plover/repository.h>
+#include <plover/transaction.h>
+
+#define PLOVER_TYPE_TRANSACTION_HELPER	plover_transaction_helper_get_type()
+#define PLOVER_TRANSACTION_HELPER(obj)	G_TYPE_CHECK_INSTANCE_CAST(obj,\
+					  PLOVER_TYPE_TRANSACTION_HELPER,\
+					  PloverTransactionHelper)
+#define PLOVER_TRANSACTION_HELPER_CLASS(klass) \
+					G_TYPE_CHECK_CLASS_CAST(klass,\
+					  PLOVER_TYPE_TRANSACTION_HELPER,\
+					  PloverTransactionHelperClass)
+#define PLOVER_IS_TRANSACTION_HELPER(obj) \
+					G_TYPE_CHECK_INSTANCE_TYPE(obj,\
+					  PLOVER_TYPE_TRANSACTION_HELPER)
+#define PLOVER_IS_TRANSACTION_HELPER_CLASS(klass) \
+					G_TYPE_CHECK_CLASS_TYPE(obj,\
+					  PLOVER_TYPE_TRANSACTION_HELPER)
+#define PLOVER_TRANSACTION_HELPER_GET_CLASS(obj) \
+					G_TYPE_INSTANCE_GET_CLASS(obj,\
+					  PLOVER_TYPE_TRANSACTION_HELPER,\
+					  PloverTransactionHelperClass)
+
+typedef struct _PloverTransactionHelper {
+    GObject parent_instance;
+    PloverPackageSet *installed;
+    PloverRepository *upstream;
+    PloverPackageSet *relocated_upstream;
+    gchar *base;
+    gchar *unsatisfied;
+    struct comps *comps;
+    gboolean check_vendor;
+    gboolean report_adding_dependencies;
+    gboolean report_removing_dependants;
+    struct plover_vector *report_adding,*report_removing;
+    GSList *transactions;
+    GtkBuilder *ui;
+    GtkAssistant *assistant;
+    guint pulse_handler;
+    GError *error;
+    gchar *error_primary_text;
+    GtkWidget *error_dialog;
+} PloverTransactionHelper;
+
+typedef struct _PloverTransactionHelperClass {
+    GObjectClass parent_class;
+} PloverTransactionHelperClass;
+
+GType plover_transaction_helper_get_type(void);
+PloverTransactionHelper *plover_transaction_helper_new(GtkBuilder *ui);
+PloverPackageSet *
+  plover_transaction_helper_get_installed(PloverTransactionHelper *helper);
+void plover_transaction_helper_set_installed(PloverTransactionHelper *helper,
+  PloverPackageSet *installed);
+PloverRepository *
+  plover_transaction_helper_get_upstream(PloverTransactionHelper *helper,
+  GError **error);
+void plover_transaction_helper_set_upstream(PloverTransactionHelper *helper,
+  PloverRepository *upstream);
+const char *plover_transaction_helper_get_base(PloverTransactionHelper *helper);
+void plover_transaction_helper_set_base(PloverTransactionHelper *helper,
+  const char *base);
+struct comps *
+  plover_transaction_helper_get_comps(PloverTransactionHelper *helper,
+  GError **error);
+const char *
+  plover_transaction_helper_get_prefix(PloverTransactionHelper *helper,
+  GError **error);
+void plover_transaction_helper_set_check_vendor(PloverTransactionHelper *helper,
+  gboolean check_vendor);
+const char *
+  plover_transaction_helper_get_unsatisfied(PloverTransactionHelper *helper);
+gboolean
+  plover_transaction_helper_add_transaction(PloverTransactionHelper *helper,
+  PloverTransaction *transaction,struct plover_vector *report_packages,
+  enum razor_install_action report_action,GError **error);
+struct plover_vector *plover_transaction_helper_group_get_default_packages(
+  PloverTransactionHelper *helper,const char *group,GError **error);
+gboolean
+  plover_transaction_helper_install_packages(PloverTransactionHelper *helper,
+  struct plover_vector *packages,GError **error);
+gboolean
+  plover_transaction_helper_install_group(PloverTransactionHelper *helper,
+  const char *group,GError **error);
+gboolean
+  plover_transaction_helper_remove_group(PloverTransactionHelper *helper,
+  const char *group,GError **error);
+gboolean
+  plover_transaction_helper_update(PloverTransactionHelper *helper,
+  GError **error);
+gboolean plover_transaction_helper_get_visible(PloverTransactionHelper *helper);
+void plover_transaction_helper_present(PloverTransactionHelper *helper);
+const char *plover_transaction_helper_get_error(PloverTransactionHelper *helper,
+  const GError **error);
+void plover_transaction_helper_set_error(PloverTransactionHelper *helper,
+  const GError *error,const char *primary_text);
+
+#endif /* __PLOVER_TRANSACTION_HELPER_H__ */