Reorder accounts by drag-and-drop.

This implements https://bugzilla.gnome.org/show_bug.cgi?id=663527#c3.

Account reordering is now done by drag-and-drop instead of up/down
buttons.

Turned out to be a wee bit more complicated than I initially thought.

This scraps EAccountManager and EAccountTreeView and replaces them with
new classes centered around EMailAccountStore, which EMailSession owns.

EMailAccountStore is the model behind the account list in Preferences.
The folder tree model now uses it to sort its own top-level rows using
gtk_tree_path_compare().  It also broadcasts account operations through
signals so we don't have to rely so heavily on EAccountList signals,
since EAccountList is going away soon.

Also as part of this work, the e-mail-local.h and e-mail-store.h APIs
have been merged into EMailSession and MailFolderCache.

1 files changed, 144 insertions, 0 deletions

diff --git a/mail/e-mail-account-store.h b/mail/e-mail-account-store.h
new file mode 100644
index 0000000000..e4355da3a8
--- /dev/null
+++ b/mail/e-mail-account-store.h
@@ -0,0 +1,144 @@
+/*
+ * e-mail-account-store.h
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+#ifndef E_MAIL_ACCOUNT_STORE_H
+#define E_MAIL_ACCOUNT_STORE_H
+
+#include <gtk/gtk.h>
+#include <camel/camel.h>
+
+/* Standard GObject macros */
+#define E_TYPE_MAIL_ACCOUNT_STORE \
+	(e_mail_account_store_get_type ())
+#define E_MAIL_ACCOUNT_STORE(obj) \
+	(G_TYPE_CHECK_INSTANCE_CAST \
+	((obj), E_TYPE_MAIL_ACCOUNT_STORE, EMailAccountStore))
+#define E_MAIL_ACCOUNT_STORE_CLASS(cls) \
+	(G_TYPE_CHECK_CLASS_CAST \
+	((cls), E_TYPE_MAIL_ACCOUNT_STORE, EMailAccountStoreClass))
+#define E_IS_MAIL_ACCOUNT_STORE(obj) \
+	(G_TYPE_CHECK_INSTANCE_TYPE \
+	((obj), E_TYPE_MAIL_ACCOUNT_STORE))
+#define E_IS_MAIL_ACOCUNT_STORE_CLASS(cls) \
+	(G_TYPE_CHECK_CLASS_TYPE \
+	((cls), E_TYPE_MAIL_ACCOUNT_STORE))
+#define E_MAIL_ACCOUNT_STORE_GET_CLASS(obj) \
+	(G_TYPE_INSTANCE_GET_CLASS \
+	((obj), E_TYPE_MAIL_ACCOUNT_STORE, EMailAccountStoreClass))
+
+G_BEGIN_DECLS
+
+/* Avoid a circular dependency. */
+typedef struct _EMailSession EMailSession;
+
+typedef enum {
+	E_MAIL_ACCOUNT_STORE_COLUMN_SERVICE,
+	E_MAIL_ACCOUNT_STORE_COLUMN_BUILTIN,
+	E_MAIL_ACCOUNT_STORE_COLUMN_ENABLED,
+	E_MAIL_ACCOUNT_STORE_COLUMN_DEFAULT,
+	E_MAIL_ACCOUNT_STORE_COLUMN_BACKEND_NAME,
+	E_MAIL_ACCOUNT_STORE_COLUMN_DISPLAY_NAME,
+	E_MAIL_ACCOUNT_STORE_NUM_COLUMNS
+} EMailAccountStoreColumn;
+
+typedef struct _EMailAccountStore EMailAccountStore;
+typedef struct _EMailAccountStoreClass EMailAccountStoreClass;
+typedef struct _EMailAccountStorePrivate EMailAccountStorePrivate;
+
+struct _EMailAccountStore {
+	GtkListStore parent;
+	EMailAccountStorePrivate *priv;
+};
+
+struct _EMailAccountStoreClass {
+	GtkListStoreClass parent_class;
+
+	/* Signals */
+	void		(*service_added)	(EMailAccountStore *store,
+						 CamelService *service);
+	void		(*service_removed)	(EMailAccountStore *store,
+						 CamelService *service);
+	void		(*service_enabled)	(EMailAccountStore *store,
+						 CamelService *service);
+	void		(*service_disabled)	(EMailAccountStore *store,
+						 CamelService *service);
+	void		(*services_reordered)	(EMailAccountStore *store,
+						 gboolean default_restored);
+
+	/* These signals are for confirmation dialogs.
+	 * Signal handler should return FALSE to abort. */
+	gboolean	(*remove_requested)	(EMailAccountStore *store,
+						 GtkWindow *parent_window,
+						 CamelService *service);
+	gboolean	(*enable_requested)	(EMailAccountStore *store,
+						 GtkWindow *parent_window,
+						 CamelService *service);
+	gboolean	(*disable_requested)	(EMailAccountStore *store,
+						 GtkWindow *parent_window,
+						 CamelService *service);
+};
+
+GType		e_mail_account_store_get_type	(void) G_GNUC_CONST;
+EMailAccountStore *
+		e_mail_account_store_new	(EMailSession *session);
+void		e_mail_account_store_clear	(EMailAccountStore *store);
+gboolean	e_mail_account_store_get_busy	(EMailAccountStore *store);
+EMailSession *	e_mail_account_store_get_session
+						(EMailAccountStore *store);
+CamelService *	e_mail_account_store_get_default_service
+						(EMailAccountStore *store);
+void		e_mail_account_store_set_default_service
+						(EMailAccountStore *store,
+						 CamelService *service);
+gboolean	e_mail_account_store_get_express_mode
+						(EMailAccountStore *store);
+void		e_mail_account_store_set_express_mode
+						(EMailAccountStore *store,
+						 gboolean express_mode);
+void		e_mail_account_store_add_service
+						(EMailAccountStore *store,
+						 CamelService *service);
+void		e_mail_account_store_remove_service
+						(EMailAccountStore *store,
+						 GtkWindow *parent_window,
+						 CamelService *service);
+void		e_mail_account_store_enable_service
+						(EMailAccountStore *store,
+						 GtkWindow *parent_window,
+						 CamelService *service);
+void		e_mail_account_store_disable_service
+						(EMailAccountStore *store,
+						 GtkWindow *parent_window,
+						 CamelService *service);
+void		e_mail_account_store_reorder_services
+						(EMailAccountStore *store,
+						 GQueue *ordered_services);
+gint		e_mail_account_store_compare_services
+						(EMailAccountStore *store,
+						 CamelService *service_a,
+						 CamelService *service_b);
+gboolean	e_mail_account_store_load_sort_order
+						(EMailAccountStore *store,
+						 GError **error);
+gboolean	e_mail_account_store_save_sort_order
+						(EMailAccountStore *store,
+						 GError **error);
+
+G_END_DECLS
+
+#endif /* E_MAIL_ACCOUNT_STORE_H */