only enable the remove button when there is a selection.

2002-07-17  Jody Goldberg <jody@gnome.org>

	* mime-edit-dialog.c (mime_edit_dialog_init) : only enable the remove
	  button when there is a selection.

3 files changed, 64 insertions, 11 deletions

diff --git a/capplets/file-types/ChangeLog b/capplets/file-types/ChangeLog
index 78c793664..e44d5e327 100644
--- a/capplets/file-types/ChangeLog
+++ b/capplets/file-types/ChangeLog
@@ -1,3 +1,8 @@
+2002-07-17  Jody Goldberg <jody@gnome.org>
+
+	* mime-edit-dialog.c (mime_edit_dialog_init) : only enable the remove
+	  button when there is a selection.
+
 2002-07-16  Jody Goldberg <jody@gnome.org>
 
 	* file-types-properties.glade (</) : rearrange the extensions area.
diff --git a/capplets/file-types/file-types-properties.glade b/capplets/file-types/file-types-properties.glade
index 26d940e5b..39e079a36 100644
--- a/capplets/file-types/file-types-properties.glade
+++ b/capplets/file-types/file-types-properties.glade
@@ -456,10 +456,31 @@
 		<widget class="GtkTable" id="table1">
 		  <property name="visible">True</property>
 		  <property name="n_rows">2</property>
-		  <property name="n_columns">2</property>
+		  <property name="n_columns">3</property>
 		  <property name="homogeneous">False</property>
 		  <property name="row_spacing">0</property>
-		  <property name="column_spacing">0</property>
+		  <property name="column_spacing">4</property>
+
+		  <child>
+		    <widget class="GtkLabel" id="add_ext_label">
+		      <property name="label" translatable="yes">Add:</property>
+		      <property name="justify">GTK_JUSTIFY_CENTER</property>
+		      <property name="wrap">no</property>
+		      <property name="xalign">0.5</property>
+		      <property name="yalign">0.5</property>
+		      <property name="xpad">4</property>
+		      <property name="ypad">0</property>
+		      <property name="visible">yes</property>
+		     </widget>
+		    <packing>
+		      <property name="left_attach">0</property>
+		      <property name="right_attach">1</property>
+		      <property name="top_attach">0</property>
+		      <property name="bottom_attach">1</property>
+		      <property name="x_options">fill</property>
+		      <property name="y_options"></property>
+		    </packing>
+		  </child>
 
 		  <child>
 		    <widget class="GtkEntry" id="new_ext_entry">
@@ -486,7 +507,7 @@
 		  <child>
 		    <widget class="GtkAlignment" id="alignment1">
 		      <property name="visible">True</property>
-		      <property name="xalign">0</property>
+		      <property name="xalign">1</property>
 		      <property name="yalign">0.5</property>
 		      <property name="xscale">0</property>
 		      <property name="yscale">1</property>
@@ -544,8 +565,8 @@
 		      </child>
 		    </widget>
 		    <packing>
-		      <property name="left_attach">0</property>
-		      <property name="right_attach">1</property>
+		      <property name="left_attach">2</property>
+		      <property name="right_attach">3</property>
 		      <property name="top_attach">0</property>
 		      <property name="bottom_attach">2</property>
 		    </packing>
diff --git a/capplets/file-types/mime-edit-dialog.c b/capplets/file-types/mime-edit-dialog.c
index b2e2bbcf2..1f48b7b63 100644
--- a/capplets/file-types/mime-edit-dialog.c
+++ b/capplets/file-types/mime-edit-dialog.c
@@ -160,11 +160,28 @@ mime_edit_editable_enters (MimeEditDialog *dialog, GtkEditable *editable)
 }
 
 static void
+check_for_content (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter,
+		   gpointer data) 
+{
+	*((gboolean *)data) = TRUE;
+}
+
+static void
+remove_ext_sensitivity_cb (GtkTreeSelection *selection, GtkWidget *button)
+{
+	gboolean flag = FALSE;
+	gtk_tree_selection_selected_foreach (selection, check_for_content, &flag);
+	gtk_widget_set_sensitive (GTK_WIDGET (button), flag);
+}
+
+static void
 mime_edit_dialog_init (MimeEditDialog *dialog, MimeEditDialogClass *class)
 {
 	GtkSizeGroup *size_group;
 	GtkTreeView *view;
 	GtkCellRenderer *renderer;
+	GtkWidget *remove_ext;
+	GtkTreeSelection *selection;
 
 	dialog->p = g_new0 (MimeEditDialogPrivate, 1);
 	dialog->p->dialog_xml = glade_xml_new
@@ -199,12 +216,22 @@ mime_edit_dialog_init (MimeEditDialog *dialog, MimeEditDialogClass *class)
 
 	gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog->p->dialog_win)->vbox), WID ("edit_widget"), TRUE, TRUE, 0);
 
-	g_signal_connect_swapped (G_OBJECT (WID ("new_ext_entry")), "activate", (GCallback) add_ext_cb, dialog);
-	g_signal_connect_swapped (G_OBJECT (WID ("remove_ext_button")), "clicked", (GCallback) remove_ext_cb, dialog);
-	g_signal_connect_swapped (G_OBJECT (WID ("choose_button")), "clicked", (GCallback) choose_cat_cb, dialog);
-	g_signal_connect_swapped (G_OBJECT (WID ("default_action_select")), "changed", (GCallback) default_action_changed_cb, dialog);
-
-	g_signal_connect_swapped (G_OBJECT (dialog->p->dialog_win), "response", (GCallback) response_cb, dialog);
+	remove_ext = WID ("remove_ext_button");
+	selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (WID ("ext_list")));
+	g_signal_connect (G_OBJECT (selection), "changed",
+		(GCallback) remove_ext_sensitivity_cb, remove_ext);
+	g_signal_connect_swapped (G_OBJECT (remove_ext), "clicked",
+		(GCallback) remove_ext_cb, dialog);
+	g_signal_connect_swapped (G_OBJECT (WID ("new_ext_entry")), "activate",
+		(GCallback) add_ext_cb, dialog);
+	g_signal_connect_swapped (G_OBJECT (WID ("choose_button")), "clicked",
+		(GCallback) choose_cat_cb, dialog);
+	g_signal_connect_swapped (G_OBJECT (WID ("default_action_select")), "changed",
+		(GCallback) default_action_changed_cb, dialog);
+	g_signal_connect_swapped (G_OBJECT (dialog->p->dialog_win), "response",
+		(GCallback) response_cb, dialog);
+
+	remove_ext_sensitivity_cb (selection, (gpointer)remove_ext);
 
 	mime_edit_editable_enters (dialog, GTK_EDITABLE (WID ("description_entry")));
 	mime_edit_editable_enters (dialog, GTK_EDITABLE (WID ("mime_type_entry")));