add our selection_change signal. (e_minicard_view_widget_realize): connect

2001-05-17  Chris Toshok  <toshok@ximian.com>

	* gui/widgets/e-minicard-view-widget.c
	(e_minicard_view_widget_class_init): add our selection_change
	signal.
	(e_minicard_view_widget_realize): connect to the ESelectionModel's
	selection_changed signal.
	(e_minicard_view_widget_selected_count): new function.
	(selection_change): new function - emit our "selection_change"
	signal.

	* gui/widgets/e-minicard-view-widget.h (struct
	_EMinicardViewWidgetClass): add selection_change signal.  also,
	add prototype for e_minicard_view_widget_selected_count.  *
	gui/widgets/e-addressbook-view.c

	(e_addressbook_view_class_init): add our command_state_change
	signal.
	(e_addressbook_view_init): connect to the writable_status signal
	on the EAddressbookModel.
	(minicard_selection_change): new function - calls
	command_state_change.
	(create_minicard_view): connect to selection_change on the
	minicard_view so we know when to update command state.
	(table_selection_change): new function - calls
	command_state_change.
	(writable_status): new function - calls command_state_change.
	(command_state_change): new function - emits our
	"command_state_change" signal.
	(create_table_view): connect to the selection_change signal so we
	know to update the command state.
	(change_view_type): update the command state every time we change
	view types.
	(e_addressbook_view_can_create): new function.
	(e_addressbook_view_can_print): new function.
	(e_addressbook_view_can_delete): new function.
	(e_addressbook_view_can_stop): new function.

	* gui/widgets/e-addressbook-view.h (struct
	_EAddressbookViewClass): add command_state_change signal, and
	prototypes of functions the component can use to test the state of
	commands.

	* gui/widgets/e-addressbook-model.c (addressbook_destroy): unlink
	the writable_status signal on the EBook.
	(writable_status): new function.
	(e_addressbook_model_class_init): add our writable_status signal.
	(e_addressbook_model_init): init writable_status_id.
	(e_addressbook_model_set_arg): unlink the writable_status signal
	on the old EBook, and connect it on the new one.

	* gui/widgets/e-addressbook-model.h: add writable_status signal.

	* gui/component/addressbook.c (update_command_state): new
	function, set the sensitivity of the bonobo commands.
	(control_activate): update our command state immediately upon
	activating the control.
	(addressbook_factory_new_control): register command_state_change
	to update the commands.

svn path=/trunk/; revision=9874

1 files changed, 39 insertions, 0 deletions

diff --git a/addressbook/gui/widgets/e-minicard-view-widget.c b/addressbook/gui/widgets/e-minicard-view-widget.c
index 8944f2118c..576f8b3aab 100644
--- a/addressbook/gui/widgets/e-minicard-view-widget.c
+++ b/addressbook/gui/widgets/e-minicard-view-widget.c
@@ -37,6 +37,8 @@ static void e_minicard_view_widget_reflow        (ECanvas *canvas);
 static void e_minicard_view_widget_size_allocate (GtkWidget *widget, GtkAllocation *allocation);
 static void e_minicard_view_widget_realize       (GtkWidget *widget);
 
+static void selection_change                     (ESelectionModel *esm, EMinicardViewWidget *widget);
+
 static ECanvasClass *parent_class = NULL;
 
 /* The arguments we take */
@@ -47,6 +49,13 @@ enum {
 	ARG_EDITABLE
 };
 
+enum {
+	SELECTION_CHANGE,
+	LAST_SIGNAL
+};
+
+static guint e_minicard_view_widget_signals [LAST_SIGNAL] = {0, };
+
 GtkType
 e_minicard_view_widget_get_type (void)
 {
@@ -92,6 +101,16 @@ e_minicard_view_widget_class_init (EMinicardViewWidgetClass *klass)
 	gtk_object_add_arg_type ("EMinicardViewWidget::editable", GTK_TYPE_BOOL,
 				 GTK_ARG_READWRITE, ARG_EDITABLE);
 
+	e_minicard_view_widget_signals [SELECTION_CHANGE] =
+		gtk_signal_new ("selection_change",
+				GTK_RUN_LAST,
+				object_class->type,
+				GTK_SIGNAL_OFFSET (EMinicardViewWidgetClass, selection_change),
+				gtk_marshal_NONE__NONE,
+				GTK_TYPE_NONE, 0);
+
+	gtk_object_class_add_signals (object_class, e_minicard_view_widget_signals, LAST_SIGNAL);
+
 	object_class->set_arg       = e_minicard_view_widget_set_arg;
 	object_class->get_arg       = e_minicard_view_widget_get_arg;
 	object_class->destroy       = e_minicard_view_widget_destroy;
@@ -223,6 +242,10 @@ e_minicard_view_widget_realize (GtkWidget *widget)
 		       "adapter", view->adapter,
 		       NULL);
 
+	gtk_signal_connect (GTK_OBJECT (E_REFLOW(view->emv)->selection),
+			    "selection_changed",
+			    selection_change, view);
+
 	if (GTK_WIDGET_CLASS(parent_class)->realize)
 		GTK_WIDGET_CLASS(parent_class)->realize (widget);
 }
@@ -275,6 +298,22 @@ e_minicard_view_widget_reflow(ECanvas *canvas)
 			       NULL );	
 }
 
+static void
+selection_change (ESelectionModel *esm, EMinicardViewWidget *widget)
+{
+	gtk_signal_emit (GTK_OBJECT(widget),
+			 e_minicard_view_widget_signals [SELECTION_CHANGE], widget);
+}
+
+gint
+e_minicard_view_widget_selected_count   (EMinicardViewWidget *view)
+{
+	if (!view->emv)
+		return 0;
+	else
+		return e_selection_model_selected_count (E_REFLOW (view->emv)->selection);
+}
+
 void
 e_minicard_view_widget_remove_selection(EMinicardViewWidget *view,
 					EBookCallback  cb,