[evolution] Use em_folder_tree_get_selected() in places to simplify code.

[Matthew Barnes <mbarnes src gnome org>]

commit a9dff2f33a06879403277a422fc579854aa99885
Author: Matthew Barnes <mbarnes redhat com>
Date:   Tue May 24 17:36:21 2011 -0400

    Use em_folder_tree_get_selected() in places to simplify code.
    
    There were a few places where we were accessing the folder tree model
    directly to get the selected store + folder name, or were asking for the
    selected URI only to parse back into its store + folder name components.

 mail/e-mail-sidebar.c                    |    5 +--
 mail/em-folder-properties.c              |   40 +++++++----------------
 mail/em-folder-properties.h              |    3 +-
 mail/em-folder-tree.c                    |   52 +++++++++++++++--------------
 modules/mail/e-mail-shell-backend.c      |   33 ++++--------------
 modules/mail/e-mail-shell-view-actions.c |   20 ++++-------
 modules/mail/e-mail-shell-view.c         |   21 ++++--------
 plugins/mark-all-read/mark-all-read.c    |   39 ++++------------------
 8 files changed, 73 insertions(+), 140 deletions(-)
---
diff --git a/mail/e-mail-sidebar.c b/mail/e-mail-sidebar.c
index 45d16a8..5f62851 100644
--- a/mail/e-mail-sidebar.c
+++ b/mail/e-mail-sidebar.c
@@ -300,7 +300,6 @@ mail_sidebar_check_state (EMailSidebar *sidebar)
 	GtkTreeIter iter;
 	CamelStore *store;
 	gchar *full_name;
-	gchar *uri;
 	gboolean allows_children = TRUE;
 	gboolean can_delete = TRUE;
 	gboolean is_junk = FALSE;
@@ -321,8 +320,7 @@ mail_sidebar_check_state (EMailSidebar *sidebar)
 		COL_POINTER_CAMEL_STORE, &store,
 		COL_STRING_FULL_NAME, &full_name,
 		COL_BOOL_IS_STORE, &is_store,
-		COL_UINT_FLAGS, &folder_flags,
-		COL_STRING_URI, &uri, -1);
+		COL_UINT_FLAGS, &folder_flags, -1);
 
 	if (!is_store && full_name != NULL) {
 		CamelStore *local_store;
@@ -372,7 +370,6 @@ mail_sidebar_check_state (EMailSidebar *sidebar)
 		state |= E_MAIL_SIDEBAR_STORE_SUPPORTS_SUBSCRIPTIONS;
 
 	g_free (full_name);
-	g_free (uri);
 
 	return state;
 }
diff --git a/mail/em-folder-properties.c b/mail/em-folder-properties.c
index 090dcd7..4f5b4f6 100644
--- a/mail/em-folder-properties.c
+++ b/mail/em-folder-properties.c
@@ -444,48 +444,32 @@ emfp_dialog_got_folder (CamelStore *store,
 /**
  * em_folder_properties_show:
  * @shell_view: an #EShellView
- * @folder_uri: a folder URI
+ * @store: a #CamelStore
+ * @folder_name: a folder name
  *
- * Show folder properties for @folder_uri.
+ * Show folder properties for @folder_name.
  **/
 void
 em_folder_properties_show (EShellView *shell_view,
-                           const gchar *folder_uri)
+                           CamelStore *store,
+                           const gchar *folder_name)
 {
 	EShellBackend *shell_backend;
 	EShellContent *shell_content;
 	EMailBackend *backend;
-	EMailSession *session;
 	EAlertSink *alert_sink;
 	GCancellable *cancellable;
 	AsyncContext *context;
-	CamelStore *store = NULL;
-	gchar *folder_name = NULL;
 	const gchar *uid;
-	GError *error = NULL;
 
 	g_return_if_fail (E_IS_SHELL_VIEW (shell_view));
-	g_return_if_fail (folder_uri != NULL);
+	g_return_if_fail (CAMEL_IS_STORE (store));
+	g_return_if_fail (folder_name != NULL);
 
 	shell_backend = e_shell_view_get_shell_backend (shell_view);
 	shell_content = e_shell_view_get_shell_content (shell_view);
 
 	backend = E_MAIL_BACKEND (shell_backend);
-	session = e_mail_backend_get_session (backend);
-
-	e_mail_folder_uri_parse (
-		CAMEL_SESSION (session), folder_uri,
-		&store, &folder_name, &error);
-
-	/* XXX This is unlikely to fail since the URI comes straight from
-	 *     EMFolderTreeModel, but leave a breadcrumb if it does fail. */
-	if (error != NULL) {
-		g_warn_if_fail (store == NULL);
-		g_warn_if_fail (folder_name == NULL);
-		g_warning ("%s", error->message);
-		g_error_free (error);
-		return;
-	}
 
 	uid = camel_service_get_uid (CAMEL_SERVICE (store));
 
@@ -493,9 +477,12 @@ em_folder_properties_show (EShellView *shell_view,
 	 * "Unmatched" is a special Search Folder which can't be modified. */
 	if (g_strcmp0 (uid, "vfolder") == 0) {
 		if (g_strcmp0 (folder_name, CAMEL_UNMATCHED_NAME) != 0) {
+			gchar *folder_uri;
+
+			folder_uri = e_mail_folder_uri_build (
+				store, folder_name);
 			vfolder_edit_rule (backend, folder_uri);
-			g_object_unref (store);
-			g_free (folder_name);
+			g_free (folder_uri);
 			return;
 		}
 	}
@@ -519,7 +506,4 @@ em_folder_properties_show (EShellView *shell_view,
 		(GAsyncReadyCallback) emfp_dialog_got_folder, context);
 
 	g_object_unref (cancellable);
-
-	g_object_unref (store);
-	g_free (folder_name);
 }
diff --git a/mail/em-folder-properties.h b/mail/em-folder-properties.h
index 8ceda89..fbb8dad 100644
--- a/mail/em-folder-properties.h
+++ b/mail/em-folder-properties.h
@@ -30,7 +30,8 @@
 G_BEGIN_DECLS
 
 void		em_folder_properties_show	(EShellView *shell_view,
-						 const gchar *folder_uri);
+						 CamelStore *store,
+						 const gchar *folder_name);
 
 G_END_DECLS
 
diff --git a/mail/em-folder-tree.c b/mail/em-folder-tree.c
index 3b16f62..9ad9d32 100644
--- a/mail/em-folder-tree.c
+++ b/mail/em-folder-tree.c
@@ -552,18 +552,16 @@ folder_tree_maybe_expand_row (EMFolderTreeModel *model,
 {
 	EMFolderTreePrivate *priv = folder_tree->priv;
 	struct _EMFolderTreeModelStoreInfo *si;
-	gboolean is_store;
 	CamelStore *store;
 	EAccount *account;
 	gchar *full_name;
 	gchar *key;
 	struct _selected_uri *u;
 
-	gtk_tree_model_get ((GtkTreeModel *) model, iter,
-			    COL_STRING_FULL_NAME, &full_name,
-			    COL_POINTER_CAMEL_STORE, &store,
-			    COL_BOOL_IS_STORE, &is_store,
-			    -1);
+	gtk_tree_model_get (
+		GTK_TREE_MODEL (model), iter,
+		COL_STRING_FULL_NAME, &full_name,
+		COL_POINTER_CAMEL_STORE, &store, -1);
 
 	si = em_folder_tree_model_lookup_store_info (model, store);
 	if ((account = e_get_account_by_name (si->display_name))) {
@@ -3174,6 +3172,18 @@ em_folder_tree_get_selected (EMFolderTree *folder_tree,
 		COL_POINTER_CAMEL_STORE, &store,
 		COL_STRING_FULL_NAME, &folder_name, -1);
 
+	/* We should always get a valid store. */
+	g_return_val_if_fail (CAMEL_IS_STORE (store), FALSE);
+
+	/* If a store is selected, the folder name will be NULL.
+	 * Treat this as though nothing is selected, so that callers
+	 * can assume a TRUE return value means a folder is selected. */
+	if (folder_name == NULL)
+		return FALSE;
+
+	/* FIXME We really should be storing the CamelStore as a GObject
+	 *       so it gets referenced.  The pointer type is a relic of
+	 *       days before Camel used GObject. */
 	if (out_store != NULL)
 		*out_store = g_object_ref (store);
 
@@ -3210,31 +3220,20 @@ em_folder_tree_get_selected_uri (EMFolderTree *folder_tree)
 CamelFolder *
 em_folder_tree_get_selected_folder (EMFolderTree *folder_tree)
 {
-	GtkTreeView *tree_view;
-	GtkTreeSelection *selection;
-	GtkTreeModel *model;
-	GtkTreeIter iter;
-	gchar *full_name = NULL;
-	CamelStore *store = NULL;
-	CamelFolder *folder = NULL;
+	CamelFolder *folder;
+	CamelStore *store;
+	gchar *full_name;
 
 	g_return_val_if_fail (EM_IS_FOLDER_TREE (folder_tree), NULL);
 
-	tree_view = GTK_TREE_VIEW (folder_tree);
-	selection = gtk_tree_view_get_selection (tree_view);
-
-	if (gtk_tree_selection_get_selected (selection, &model, &iter))
-		gtk_tree_model_get (
-			model, &iter,
-			COL_POINTER_CAMEL_STORE, &store,
-			COL_STRING_FULL_NAME, &full_name, -1);
+	if (!em_folder_tree_get_selected (folder_tree, &store, &full_name))
+		return NULL;
 
 	/* FIXME camel_store_get_folder_sync() may block. */
-	if (store && full_name)
-		folder = camel_store_get_folder_sync (
-			store, full_name,
-			CAMEL_STORE_FOLDER_INFO_FAST, NULL, NULL);
+	folder = camel_store_get_folder_sync (
+		store, full_name, CAMEL_STORE_FOLDER_INFO_FAST, NULL, NULL);
 
+	g_object_unref (store);
 	g_free (full_name);
 
 	return folder;
@@ -3252,6 +3251,9 @@ em_folder_tree_get_selected_account (EMFolderTree *folder_tree)
 
 	g_return_val_if_fail (EM_IS_FOLDER_TREE (folder_tree), NULL);
 
+	/* Don't use em_folder_tree_get_selected() here because we
+	 * want this to work whether a folder or store is selected. */
+
 	tree_view = GTK_TREE_VIEW (folder_tree);
 	selection = gtk_tree_view_get_selection (tree_view);
 
diff --git a/modules/mail/e-mail-shell-backend.c b/modules/mail/e-mail-shell-backend.c
index f7e9b81..b95ce9d 100644
--- a/modules/mail/e-mail-shell-backend.c
+++ b/modules/mail/e-mail-shell-backend.c
@@ -145,14 +145,14 @@ action_mail_message_new_cb (GtkAction *action,
                             EShellWindow *shell_window)
 {
 	EMailShellSidebar *mail_shell_sidebar;
-	EShellBackend *shell_backend;
 	EShellSidebar *shell_sidebar;
 	EShellView *shell_view;
 	EShell *shell;
 	EMFolderTree *folder_tree;
 	CamelFolder *folder = NULL;
+	CamelStore *store;
 	const gchar *view_name;
-	gchar *folder_uri = NULL;
+	gchar *folder_name;
 
 	shell = e_shell_window_get_shell (shell_window);
 
@@ -165,36 +165,19 @@ action_mail_message_new_cb (GtkAction *action,
 		goto exit;
 
 	shell_view = e_shell_window_get_shell_view (shell_window, view_name);
-	shell_backend = e_shell_view_get_shell_backend (shell_view);
 	shell_sidebar = e_shell_view_get_shell_sidebar (shell_view);
 
 	mail_shell_sidebar = E_MAIL_SHELL_SIDEBAR (shell_sidebar);
 	folder_tree = e_mail_shell_sidebar_get_folder_tree (mail_shell_sidebar);
-	folder_uri = em_folder_tree_get_selected_uri (folder_tree);
-
-	if (folder_uri != NULL) {
-		EMailBackend *backend;
-		EMailSession *session;
-		CamelStore *store;
-		gchar *folder_name;
-		gboolean success;
 
-		backend = E_MAIL_BACKEND (shell_backend);
-		session = e_mail_backend_get_session (backend);
-
-		success = e_mail_folder_uri_parse (
-			CAMEL_SESSION (session), folder_uri,
-			&store, &folder_name, NULL);
+	if (em_folder_tree_get_selected (folder_tree, &store, &folder_name)) {
 
 		/* FIXME This blocks and is not cancellable. */
-		if (success) {
-			folder = camel_store_get_folder_sync (
-				store, folder_name, 0, NULL, NULL);
-			g_object_unref (store);
-			g_free (folder_name);
-		}
+		folder = camel_store_get_folder_sync (
+			store, folder_name, 0, NULL, NULL);
 
-		g_free (folder_uri);
+		g_object_unref (store);
+		g_free (folder_name);
 	}
 
 exit:
diff --git a/modules/mail/e-mail-shell-view-actions.c b/modules/mail/e-mail-shell-view-actions.c
index 7c55908..c5f155d 100644
--- a/modules/mail/e-mail-shell-view-actions.c
+++ b/modules/mail/e-mail-shell-view-actions.c
@@ -451,24 +451,20 @@ action_mail_folder_properties_cb (GtkAction *action,
 	EMailShellSidebar *mail_shell_sidebar;
 	EMFolderTree *folder_tree;
 	EShellView *shell_view;
-	GtkTreeSelection *selection;
-	GtkTreeView *tree_view;
-	GtkTreeModel *model;
-	GtkTreeIter iter;
-	gchar *uri;
+	CamelStore *store;
+	gchar *folder_name;
 
 	shell_view = E_SHELL_VIEW (mail_shell_view);
 	mail_shell_sidebar = mail_shell_view->priv->mail_shell_sidebar;
 	folder_tree = e_mail_shell_sidebar_get_folder_tree (mail_shell_sidebar);
 
-	tree_view = GTK_TREE_VIEW (folder_tree);
-	selection = gtk_tree_view_get_selection (tree_view);
-	if (!gtk_tree_selection_get_selected (selection, &model, &iter))
-		return;
+	if (!em_folder_tree_get_selected (folder_tree, &store, &folder_name))
+		g_return_if_reached ();
 
-	gtk_tree_model_get (model, &iter, COL_STRING_URI, &uri, -1);
-	em_folder_properties_show (shell_view, uri);
-	g_free (uri);
+	em_folder_properties_show (shell_view, store, folder_name);
+
+	g_object_unref (store);
+	g_free (folder_name);
 }
 
 static void
diff --git a/modules/mail/e-mail-shell-view.c b/modules/mail/e-mail-shell-view.c
index f0a89e3..04c9d4d 100644
--- a/modules/mail/e-mail-shell-view.c
+++ b/modules/mail/e-mail-shell-view.c
@@ -660,27 +660,18 @@ current_account:
 
 	/* Create a new search folder. */
 
-	if (folder) {
+	if (folder != NULL) {
 		store = camel_folder_get_parent_store (folder);
+		if (store != NULL)
+			g_object_ref (store);
 	} else {
-		GtkTreeView *tree_view;
-		GtkTreeSelection *selection;
-		GtkTreeModel *model;
-		GtkTreeIter iter;
-
 		store = NULL;
-		tree_view = GTK_TREE_VIEW (folder_tree);
-		selection = gtk_tree_view_get_selection (tree_view);
-
-		if (gtk_tree_selection_get_selected (selection, &model, &iter))
-			gtk_tree_model_get (
-				model, &iter,
-				COL_POINTER_CAMEL_STORE, &store, -1);
+		em_folder_tree_get_selected (folder_tree, &store, NULL);
 	}
 
 	list = NULL;  /* list of CamelFolders */
 
-	if (store) {
+	if (store != NULL) {
 		CamelFolderInfo *root, *fi;
 
 		/* FIXME This call blocks the main loop. */
@@ -722,6 +713,8 @@ current_account:
 
 		if (root)
 			camel_store_free_folder_info_full (store, root);
+
+		g_object_unref (store);
 	}
 
 	list = g_list_reverse (list);
diff --git a/plugins/mark-all-read/mark-all-read.c b/plugins/mark-all-read/mark-all-read.c
index 7a5c79e..10ea043 100644
--- a/plugins/mark-all-read/mark-all-read.c
+++ b/plugins/mark-all-read/mark-all-read.c
@@ -515,14 +515,9 @@ action_mail_mark_read_recursive_cb (GtkAction *action,
 	EShellContent *shell_content;
 	EShellSidebar *shell_sidebar;
 	EMFolderTree *folder_tree;
-	EMailBackend *backend;
-	EMailSession *session;
 	AsyncContext *context;
-	CamelStore *store = NULL;
-	CamelStoreGetFolderInfoFlags flags;
-	gchar *folder_name = NULL;
-	gchar *folder_uri;
-	GError *error = NULL;
+	CamelStore *store;
+	gchar *folder_name;
 
 	shell_backend = e_shell_view_get_shell_backend (shell_view);
 	shell_content = e_shell_view_get_shell_content (shell_view);
@@ -530,28 +525,11 @@ action_mail_mark_read_recursive_cb (GtkAction *action,
 
 	g_object_get (shell_sidebar, "folder-tree", &folder_tree, NULL);
 
-	backend = em_folder_tree_get_backend (folder_tree);
-	session = e_mail_backend_get_session (backend);
-
-	folder_uri = em_folder_tree_get_selected_uri (folder_tree);
-	g_return_if_fail (folder_uri != NULL);
-
-	e_mail_folder_uri_parse (
-		CAMEL_SESSION (session), folder_uri,
-		&store, &folder_name, &error);
+	/* This action should only be activatable if a folder is selected. */
+	if (!em_folder_tree_get_selected (folder_tree, &store, &folder_name))
+		g_return_if_reached ();
 
 	g_object_unref (folder_tree);
-	g_free (folder_uri);
-
-	/* Failure here is unlikely enough that we don't need an
-	 * EAlert for it, but we should still leave a breadcrumb. */
-	if (error != NULL) {
-		g_warning ("%s", error->message);
-		return;
-	}
-
-	g_return_if_fail (CAMEL_IS_STORE (store));
-	g_return_if_fail (folder_name != NULL);
 
 	/* Open the selected folder asynchronously. */
 
@@ -567,11 +545,10 @@ action_mail_mark_read_recursive_cb (GtkAction *action,
 
 	e_shell_backend_add_activity (shell_backend, context->activity);
 
-	flags = CAMEL_STORE_FOLDER_INFO_RECURSIVE |
-		CAMEL_STORE_FOLDER_INFO_FAST;
-
 	camel_store_get_folder_info (
-		store, folder_name, flags,
+		store, folder_name,
+		CAMEL_STORE_FOLDER_INFO_FAST |
+		CAMEL_STORE_FOLDER_INFO_RECURSIVE,
 		G_PRIORITY_DEFAULT, cancellable,
 		(GAsyncReadyCallback) mar_got_folder_info, context);