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, 14 insertions, 9 deletions

diff --git a/mail/em-folder-properties.c b/mail/em-folder-properties.c
index 310aa76740..9dbffba2e2 100644
--- a/mail/em-folder-properties.c
+++ b/mail/em-folder-properties.c
@@ -34,7 +34,6 @@
 
 #include "e-mail-backend.h"
 #include "e-mail-folder-utils.h"
-#include "e-mail-local.h"
 #include "mail-ops.h"
 #include "mail-mt.h"
 #include "mail-vfolder.h"
@@ -249,25 +248,26 @@ emfp_dialog_run (AsyncContext *context)
 	EMConfigTargetFolder *target;
 	EShellWindow *shell_window;
 	EShellView *shell_view;
-	CamelStore *local_store;
 	CamelStore *parent_store;
+	CamelFolderSummary *summary;
+	gboolean store_is_local;
 	gboolean hide_deleted;
 	GSettings *settings;
 	const gchar *name;
+	const gchar *uid;
 
 	shell_view = context->shell_view;
 	shell_window = e_shell_view_get_shell_window (shell_view);
 
-	local_store = e_mail_local_get_store ();
 	parent_store = camel_folder_get_parent_store (context->folder);
 
 	/* Get number of VISIBLE and DELETED messages, instead of TOTAL
 	 * messages.  VISIBLE+DELETED gives the correct count that matches
 	 * the label below the Send & Receive button. */
-	name = camel_folder_get_display_name (context->folder);
-	context->total = camel_folder_summary_get_visible_count (context->folder->summary);
-	context->unread = camel_folder_summary_get_unread_count (context->folder->summary);
-	deleted = camel_folder_summary_get_deleted_count (context->folder->summary);
+	summary = context->folder->summary;
+	context->total = camel_folder_summary_get_visible_count (summary);
+	context->unread = camel_folder_summary_get_unread_count (summary);
+	deleted = camel_folder_summary_get_deleted_count (summary);
 
 	settings = g_settings_new ("org.gnome.evolution.mail");
 	hide_deleted = !g_settings_get_boolean (settings, "show-deleted");
@@ -290,7 +290,12 @@ emfp_dialog_run (AsyncContext *context)
 		context->total = camel_folder_summary_count (
 			context->folder->summary);
 
-	if (parent_store == local_store
+	name = camel_folder_get_display_name (context->folder);
+
+	uid = camel_service_get_uid (CAMEL_SERVICE (parent_store));
+	store_is_local = (g_strcmp0 (uid, E_MAIL_SESSION_LOCAL_UID) == 0);
+
+	if (store_is_local
 	    && (!strcmp (name, "Drafts")
 		|| !strcmp (name, "Templates")
 		|| !strcmp (name, "Inbox")
@@ -474,7 +479,7 @@ em_folder_properties_show (EShellView *shell_view,
 
 	/* Show the Edit Rule dialog for Search Folders, but not "Unmatched".
 	 * "Unmatched" is a special Search Folder which can't be modified. */
-	if (g_strcmp0 (uid, "vfolder") == 0) {
+	if (g_strcmp0 (uid, E_MAIL_SESSION_VFOLDER_UID) == 0) {
 		if (g_strcmp0 (folder_name, CAMEL_UNMATCHED_NAME) != 0) {
 			gchar *folder_uri;