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, 75 insertions, 0 deletions

diff --git a/mail/e-mail-account-tree-view.h b/mail/e-mail-account-tree-view.h
new file mode 100644
index 0000000000..e1fff8385a
--- /dev/null
+++ b/mail/e-mail-account-tree-view.h
@@ -0,0 +1,75 @@
+/*
+ * e-mail-account-tree-view.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_TREE_VIEW_H
+#define E_MAIL_ACCOUNT_TREE_VIEW_H
+
+#include <gtk/gtk.h>
+#include <mail/e-mail-account-store.h>
+
+/* Standard GObject macros */
+#define E_TYPE_MAIL_ACCOUNT_TREE_VIEW \
+	(e_mail_account_tree_view_get_type ())
+#define E_MAIL_ACCOUNT_TREE_VIEW(obj) \
+	(G_TYPE_CHECK_INSTANCE_CAST \
+	((obj), E_TYPE_MAIL_ACCOUNT_TREE_VIEW, EMailAccountTreeView))
+#define E_MAIL_ACCOUNT_TREE_VIEW_CLASS(cls) \
+	(G_TYPE_CHECK_CLASS_CAST \
+	((cls), E_TYPE_MAIL_ACCOUNT_TREE_VIEW, EMailAccountTreeViewClass))
+#define E_IS_MAIL_ACCOUNT_TREE_VIEW(obj) \
+	(G_TYPE_CHECK_INSTANCE_TYPE \
+	((obj), E_TYPE_MAIL_ACCOUNT_TREE_VIEW))
+#define E_IS_MAIL_ACCOUNT_TREE_VIEW_CLASS(cls) \
+	(G_TYPE_CHECK_CLASS_TYPE \
+	((cls), E_TYPE_MAIL_ACCOUNT_TREE_VIEW))
+#define E_MAIL_ACCOUNT_TREE_VIEW_GET_CLASS(obj) \
+	(G_TYPE_INSTANCE_GET_CLASS \
+	((obj), E_TYPE_MAIL_ACCOUNT_TREE_VIEW, EMailAccountTreeViewClass))
+
+G_BEGIN_DECLS
+
+typedef struct _EMailAccountTreeView EMailAccountTreeView;
+typedef struct _EMailAccountTreeViewClass EMailAccountTreeViewClass;
+typedef struct _EMailAccountTreeViewPrivate EMailAccountTreeViewPrivate;
+
+struct _EMailAccountTreeView {
+	GtkTreeView parent;
+	EMailAccountTreeViewPrivate *priv;
+};
+
+struct _EMailAccountTreeViewClass {
+	GtkTreeViewClass parent_class;
+
+	/* Signals */
+	void		(*enable)	(EMailAccountTreeView *tree_view);
+	void		(*disable)	(EMailAccountTreeView *tree_view);
+};
+
+GType		e_mail_account_tree_view_get_type
+					(void) G_GNUC_CONST;
+GtkWidget *	e_mail_account_tree_view_new
+					(EMailAccountStore *store);
+CamelService *	e_mail_account_tree_view_get_selected_service
+					(EMailAccountTreeView *tree_view);
+void		e_mail_account_tree_view_set_selected_service
+					(EMailAccountTreeView *tree_view,
+					 CamelService *service);
+
+G_END_DECLS
+
+#endif /* E_MAIL_ACCOUNT_TREE_VIEW_H */