check if the collapsing node has its child selected, if so take a row

2004-01-20  JP Rosevear <jpr@ximian.com>

	* e-source-selector.c (test_collapse_row_callback): check if the
	collapsing node has its child selected, if so take a row reference
	to remember the selection
	(row_expanded_callback): check if the expanding node has the saved
	primary selection under it and re-select if so
	(init): listen for signals
	(impl_dispose): free the primary selection

svn path=/trunk/; revision=24329

2 files changed, 75 insertions, 1 deletions

diff --git a/widgets/misc/ChangeLog b/widgets/misc/ChangeLog
index a98b1975d6..073f5dd902 100644
--- a/widgets/misc/ChangeLog
+++ b/widgets/misc/ChangeLog
@@ -1,3 +1,13 @@
+2004-01-20  JP Rosevear <jpr@ximian.com>
+
+	* e-source-selector.c (test_collapse_row_callback): check if the
+	collapsing node has its child selected, if so take a row reference
+	to remember the selection
+	(row_expanded_callback): check if the expanding node has the saved
+	primary selection under it and re-select if so
+	(init): listen for signals
+	(impl_dispose): free the primary selection
+
 2004-01-19  JP Rosevear <jpr@ximian.com>
 
 	* e-source-selector.c (create_rebuild_data): create the data
diff --git a/widgets/misc/e-source-selector.c b/widgets/misc/e-source-selector.c
index 68ae062682..3a46d5d217 100644
--- a/widgets/misc/e-source-selector.c
+++ b/widgets/misc/e-source-selector.c
@@ -45,7 +45,8 @@ struct _ESourceSelectorPrivate {
 	GtkTreeStore *tree_store;
 
 	GHashTable *selected_sources;
-
+	GtkTreeRowReference *saved_primary_selection;
+	
 	int rebuild_model_idle_id;
 
 	gboolean toggled_last;
@@ -467,6 +468,61 @@ selection_changed_callback (GtkTreeSelection *selection,
 }
 
 static gboolean
+test_collapse_row_callback (GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *path, gpointer data)
+{
+	ESourceSelector *selector = data;
+	ESourceSelectorPrivate *priv;	
+	GtkTreeIter child_iter;
+	
+	priv = selector->priv;
+
+	if (priv->saved_primary_selection)
+		return FALSE;
+	
+	if (!gtk_tree_selection_get_selected (gtk_tree_view_get_selection (GTK_TREE_VIEW (selector)), NULL, &child_iter))
+		return FALSE;
+	
+	if (gtk_tree_store_is_ancestor (priv->tree_store, iter, &child_iter)) {
+		GtkTreePath *child_path;
+		
+		child_path = gtk_tree_model_get_path (GTK_TREE_MODEL (priv->tree_store), &child_iter);
+		selector->priv->saved_primary_selection = gtk_tree_row_reference_new (GTK_TREE_MODEL (priv->tree_store), child_path);
+		gtk_tree_path_free (child_path);
+	}
+	
+	return FALSE;
+}
+
+static gboolean
+row_expanded_callback (GtkTreeView *treeview, GtkTreeIter *iter, GtkTreePath *path, gpointer data)
+{
+	ESourceSelector *selector = data;
+	ESourceSelectorPrivate *priv;	
+	GtkTreePath *child_path;
+	GtkTreeIter child_iter;
+	
+	priv = selector->priv;
+
+	if (!priv->saved_primary_selection)
+		return FALSE;
+	
+	child_path = gtk_tree_row_reference_get_path (priv->saved_primary_selection);
+	gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->tree_store), &child_iter, child_path);	
+
+	if (gtk_tree_store_is_ancestor (priv->tree_store, iter, &child_iter)) {
+		GtkTreeSelection *selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (selector));
+		gtk_tree_selection_select_iter (selection, &child_iter);
+
+		gtk_tree_row_reference_free (priv->saved_primary_selection);
+		priv->saved_primary_selection = NULL;
+	}
+
+	gtk_tree_path_free (child_path);
+	
+	return FALSE;	
+}
+
+static gboolean
 selector_button_press_event (GtkWidget *widget, GdkEventButton *event, ESourceSelector *selector)
 {
 	ESourceSelectorPrivate *priv = selector->priv;
@@ -518,6 +574,11 @@ impl_dispose (GObject *object)
 		priv->selected_sources = NULL;
 	}
 
+	if (priv->saved_primary_selection != NULL) {
+		gtk_tree_row_reference_free (priv->saved_primary_selection);
+		priv->saved_primary_selection = NULL;
+	}
+
 	if (priv->rebuild_model_idle_id != 0) {
 		g_source_remove (priv->rebuild_model_idle_id);
 		priv->rebuild_model_idle_id = 0;
@@ -626,6 +687,9 @@ init (ESourceSelector *selector)
 	g_signal_connect_object (selection, "changed", G_CALLBACK (selection_changed_callback), G_OBJECT (selector), 0);
 
 	gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (selector), FALSE);
+
+	g_signal_connect (G_OBJECT (selector), "test-collapse-row", G_CALLBACK (test_collapse_row_callback), selector);
+	g_signal_connect (G_OBJECT (selector), "row-expanded", G_CALLBACK (row_expanded_callback), selector);
 }