[evolution] Use e_source_selector_get_source_by_path().

[Matthew Barnes <mbarnes src gnome org>]

commit 2878a355805ec60f521ea8816a738a0ae0a75893
Author: Matthew Barnes <mbarnes redhat com>
Date:   Tue Jan 18 17:50:55 2011 -0500

    Use e_source_selector_get_source_by_path().
    
    Allows Evolution to not have to know the ESource column number in
    ESourceSelector tree models.  Backported from "account-mgmt" branch.

 modules/calendar/e-cal-shell-sidebar.c  |    9 +--------
 modules/calendar/e-memo-shell-sidebar.c |    9 +--------
 modules/calendar/e-task-shell-sidebar.c |    9 +--------
 3 files changed, 3 insertions(+), 24 deletions(-)
---
diff --git a/modules/calendar/e-cal-shell-sidebar.c b/modules/calendar/e-cal-shell-sidebar.c
index 45bb5a3..1af16b3 100644
--- a/modules/calendar/e-cal-shell-sidebar.c
+++ b/modules/calendar/e-cal-shell-sidebar.c
@@ -325,15 +325,8 @@ cal_shell_sidebar_row_changed_cb (ECalShellSidebar *cal_shell_sidebar,
 	ESourceSelector *selector;
 	ESource *source;
 
-	/* XXX ESourceSelector's underlying tree store has only one
-	 *     column: ESource objects.  While we're not supposed to
-	 *     know this, listening for "row-changed" signals from
-	 *     the model is easier to deal with than the selector's
-	 *     "selection-changed" signal, which doesn't tell you
-	 *     _which_ row changed. */
-
 	selector = e_cal_shell_sidebar_get_selector (cal_shell_sidebar);
-	gtk_tree_model_get (tree_model, tree_iter, 0, &source, -1);
+	source = e_source_selector_get_source_by_path (selector, tree_path);
 
 	/* XXX This signal gets emitted a lot while the model is being
 	 *     rebuilt, during which time we won't get a valid ESource.
diff --git a/modules/calendar/e-memo-shell-sidebar.c b/modules/calendar/e-memo-shell-sidebar.c
index c22cff3..3130494 100644
--- a/modules/calendar/e-memo-shell-sidebar.c
+++ b/modules/calendar/e-memo-shell-sidebar.c
@@ -333,15 +333,8 @@ memo_shell_sidebar_row_changed_cb (EMemoShellSidebar *memo_shell_sidebar,
 	ESourceSelector *selector;
 	ESource *source;
 
-	/* XXX ESourceSelector's underlying tree store has only one
-	 *     column: ESource objects.  While we're not supposed to
-	 *     know this, listening for "row-changed" signals from
-	 *     the model is easier to deal with than the selector's
-	 *     "selection-changed" signal, which doesn't tell you
-	 *     _which_ row changed. */
-
 	selector = e_memo_shell_sidebar_get_selector (memo_shell_sidebar);
-	gtk_tree_model_get (tree_model, tree_iter, 0, &source, -1);
+	source = e_source_selector_get_source_by_path (selector, tree_path);
 
 	/* XXX This signal gets emitted a lot while the model is being
 	 *     rebuilt, during which time we won't get a valid ESource.
diff --git a/modules/calendar/e-task-shell-sidebar.c b/modules/calendar/e-task-shell-sidebar.c
index a688da4..e001590 100644
--- a/modules/calendar/e-task-shell-sidebar.c
+++ b/modules/calendar/e-task-shell-sidebar.c
@@ -333,15 +333,8 @@ task_shell_sidebar_row_changed_cb (ETaskShellSidebar *task_shell_sidebar,
 	ESourceSelector *selector;
 	ESource *source;
 
-	/* XXX ESourceSelector's underlying tree store has only one
-	 *     column: ESource objects.  While we're not supposed to
-	 *     know this, listening for "row-changed" signals from
-	 *     the model is easier to deal with than the selector's
-	 *     "selection-changed" signal, which doesn't tell you
-	 *     _which_ row changed. */
-
 	selector = e_task_shell_sidebar_get_selector (task_shell_sidebar);
-	gtk_tree_model_get (tree_model, tree_iter, 0, &source, -1);
+	source = e_source_selector_get_source_by_path (selector, tree_path);
 
 	/* XXX This signal gets emitted a lot while the model is being
 	 *     rebuilt, during which time we won't get a valid ESource.