new function, for the Cut verb. (copy_contacts_cb): new function, for the

2001-05-30  Chris Toshok  <toshok@ximian.com>

	* gui/component/addressbook.c (cut_contacts_cb): new function, for
	the Cut verb.
	(copy_contacts_cb): new function, for the Copy verb.
	(paste_contacts_cb): new function, for the Paste verb.
	(select_all_contacts_cb): new function, for the Select All verb.
	(update_command_state): add handling for sensitivity of
	Cut/Copy/Paste/Select All.

	* gui/widgets/e-addressbook-view.c (e_addressbook_view_init): init
	the invisible and set up selection/destroy signals.
	(get_selection_model): new function, so we can get the
	ETableSelectionModel from either view type.  makes lots of the
	other functions easier, since we can get the list of selected
	cards using the same code regardless of view type.
	(invisible_destroyed): new function.
	(selection_get): new function.  convert the clipboard list to
	string.
	(selection_clear_event): new function - free up the list of
	ECards.
	(selection_received): if the selection data is valid and
	well-formed, add the corresponding cards to the ebook.
	(add_to_list): new function.
	(get_selected_cards): new function.
	(e_addressbook_view_cut): new function, implement in terms of
	_copy and _delete_selection.
	(e_addressbook_view_copy): claim ownership of the CLIPBOARD
	selection after saving the list of selected ECards.
	(e_addressbook_view_paste): call gtk_selection_convert.
	(e_addressbook_view_select_all): new function, using
	e_selection_model_select_all.
	(e_addressbook_view_can_print): re-implement in terms of
	get_selection_model.
	(e_addressbook_view_can_delete): same.
	(e_addressbook_view_can_cut): new function.
	(e_addressbook_view_can_copy): new function.
	(e_addressbook_view_can_paste): new function.  hmm, always return
	TRUE here.
	(e_addressbook_view_can_select_all): new function.

	* gui/widgets/e-addressbook-view.h (struct _EAddressbookView): add
	selection stuff - the list of selected cards, and the GtkInvisible
	selection owner, and add prototypes for
	e_addressbook_view_[can]_{cut,copy,paste,select_all}.

	* gui/widgets/e-minicard-view-widget.h: add a prototype for
	e_minicard_view_widget_get_selection_model.

	* gui/widgets/e-minicard-view-widget.c
	(e_minicard_view_widget_get_selection_model): new function.

svn path=/trunk/; revision=10050

4 files changed, 242 insertions, 14 deletions

diff --git a/addressbook/gui/widgets/e-addressbook-view.c b/addressbook/gui/widgets/e-addressbook-view.c
index 55443000a0..3491b8e662 100644
--- a/addressbook/gui/widgets/e-addressbook-view.c
+++ b/addressbook/gui/widgets/e-addressbook-view.c
@@ -22,6 +22,8 @@
 
 #include <config.h>
 
+#include <gtk/gtkinvisible.h>
+
 #include <libgnome/gnome-paper.h>
 #include <libgnome/gnome-i18n.h>
 #include <libgnome/gnome-util.h>
@@ -66,6 +68,14 @@ static void stop_state_changed (GtkObject *object, EAddressbookView *eav);
 static void writable_status (GtkObject *object, gboolean writable, EAddressbookView *eav);
 static void command_state_change (EAddressbookView *eav);
 
+static void selection_clear_event (GtkWidget *invisible, GdkEventSelection *event,
+				   EAddressbookView *view);
+static void selection_received (GtkWidget *invisible, GtkSelectionData *selection_data,
+				guint time, EAddressbookView *view);
+static void selection_get (GtkWidget *invisible, GtkSelectionData *selection_data,
+			   guint info, guint time_stamp, EAddressbookView *view);
+static void invisible_destroyed (GtkWidget *invisible, EAddressbookView *view);
+
 static GtkTableClass *parent_class = NULL;
 
 /* The arguments we take */
@@ -93,6 +103,8 @@ static const int num_drag_types = sizeof (drag_types) / sizeof (drag_types[0]);
 
 static guint e_addressbook_view_signals [LAST_SIGNAL] = {0, };
 
+static GdkAtom clipboard_atom = GDK_NONE;
+
 GtkType
 e_addressbook_view_get_type (void)
 {
@@ -154,6 +166,9 @@ e_addressbook_view_class_init (EAddressbookViewClass *klass)
 				GTK_TYPE_NONE, 0);
 
 	gtk_object_class_add_signals (object_class, e_addressbook_view_signals, LAST_SIGNAL);
+
+	if (!clipboard_atom)
+		clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE);
 }
 
 static void
@@ -184,6 +199,26 @@ e_addressbook_view_init (EAddressbookView *eav)
 
 	eav->object = NULL;
 	eav->widget = NULL;
+
+	eav->invisible = gtk_invisible_new ();
+
+	gtk_selection_add_target (eav->invisible,
+				  clipboard_atom,
+				  GDK_SELECTION_TYPE_STRING,
+				  0);
+		
+	gtk_signal_connect (GTK_OBJECT(eav->invisible), "selection_get",
+			    GTK_SIGNAL_FUNC (selection_get), 
+			    eav);
+	gtk_signal_connect (GTK_OBJECT(eav->invisible), "selection_clear_event",
+			    GTK_SIGNAL_FUNC (selection_clear_event),
+			    eav);
+	gtk_signal_connect (GTK_OBJECT(eav->invisible), "selection_received",
+			    GTK_SIGNAL_FUNC (selection_received),
+			    eav);
+	gtk_signal_connect (GTK_OBJECT(eav->invisible), "destroyed",
+			    GTK_SIGNAL_FUNC (invisible_destroyed),
+			    eav);
 }
 
 static void
@@ -195,6 +230,15 @@ e_addressbook_view_destroy (GtkObject *object)
 		gtk_object_unref(GTK_OBJECT(eav->book));
 	g_free(eav->query);
 
+	if (eav->clipboard_cards) {
+		g_list_foreach (eav->clipboard_cards, (GFunc)gtk_object_unref, NULL);
+		g_list_free (eav->clipboard_cards);
+		eav->clipboard_cards = NULL;
+	}
+		
+	if (eav->invisible)
+		gtk_widget_destroy (eav->invisible);
+
 	if (GTK_OBJECT_CLASS(parent_class)->destroy)
 		GTK_OBJECT_CLASS(parent_class)->destroy(object);
 }
@@ -1004,6 +1048,16 @@ e_addressbook_view_setup_menus (EAddressbookView *view,
 	gtk_object_sink(GTK_OBJECT(collection));
 }
 
+static ESelectionModel*
+get_selection_model (EAddressbookView *view)
+{
+	if (view->view_type == E_ADDRESSBOOK_VIEW_MINICARD)
+		return e_minicard_view_widget_get_selection_model (E_MINICARD_VIEW_WIDGET(view->object));
+	else
+		return E_SELECTION_MODEL(E_TABLE_SCROLLED(view->widget)->table->selection);
+}
+
+
 void
 e_addressbook_view_print(EAddressbookView *view)
 {
@@ -1053,10 +1107,133 @@ card_deleted_cb (EBook* book, EBookStatus status, gpointer user_data)
 void
 e_addressbook_view_delete_selection(EAddressbookView *view)
 {
+	ESelectionModel *model = get_selection_model (view);
+
+	g_return_if_fail (model);
+
 	if (view->view_type == E_ADDRESSBOOK_VIEW_MINICARD)
 		e_minicard_view_widget_remove_selection (E_MINICARD_VIEW_WIDGET(view->object), card_deleted_cb, NULL);
 }
 
+static void
+invisible_destroyed (GtkWidget *invisible, EAddressbookView *view)
+{
+	view->invisible = NULL;
+}
+
+static void
+selection_get (GtkWidget *invisible,
+	       GtkSelectionData *selection_data,
+	       guint info,
+	       guint time_stamp,
+	       EAddressbookView *view)
+{
+	char *value;
+
+	value = e_card_list_get_vcard(view->clipboard_cards);
+
+	gtk_selection_data_set (selection_data, GDK_SELECTION_TYPE_STRING,
+				8, value, strlen (value));
+				
+}
+
+static void
+selection_clear_event (GtkWidget *invisible,
+		       GdkEventSelection *event,
+		       EAddressbookView *view)
+{
+	if (view->clipboard_cards) {
+		g_list_foreach (view->clipboard_cards, (GFunc)gtk_object_unref, NULL);
+		g_list_free (view->clipboard_cards);
+		view->clipboard_cards = NULL;
+	}
+}
+
+static void
+selection_received (GtkWidget *invisible,
+		    GtkSelectionData *selection_data,
+		    guint time,
+		    EAddressbookView *view)
+{
+	if (selection_data->length < 0 || selection_data->type != GDK_SELECTION_TYPE_STRING) {
+		return;
+	}
+	else {
+		/* XXX make sure selection_data->data = \0 terminated */
+		GList *card_list = e_card_load_cards_from_string (selection_data->data);
+		GList *l;
+		
+		if (!card_list /* it wasn't a vcard list */)
+			return;
+
+		for (l = card_list; l; l = l->next) {
+			ECard *card = l->data;
+
+			e_book_add_card (view->book, card, NULL /* XXX */, NULL);
+		}
+
+		g_list_foreach (card_list, (GFunc)gtk_object_unref, NULL);
+		g_list_free (card_list);
+	}
+}
+
+static void
+add_to_list (int model_row, gpointer closure)
+{
+	GList **list = closure;
+	*list = g_list_prepend (*list, GINT_TO_POINTER (model_row));
+}
+
+static GList *
+get_selected_cards (EAddressbookView *view)
+{
+	GList *list;
+	GList *iterator;
+	ESelectionModel *selection = get_selection_model (view);
+
+	list = NULL;
+	e_selection_model_foreach (selection, add_to_list, &list);
+
+	for (iterator = list; iterator; iterator = iterator->next) {
+		iterator->data = e_addressbook_model_card_at (view->model, GPOINTER_TO_INT (iterator->data));
+	}
+	list = g_list_reverse (list);
+	return list;
+}
+
+void
+e_addressbook_view_cut (EAddressbookView *view)
+{
+	e_addressbook_view_copy (view);
+	e_addressbook_view_delete_selection (view);
+}
+
+void
+e_addressbook_view_copy (EAddressbookView *view)
+{
+	view->clipboard_cards = get_selected_cards (view);
+
+	gtk_selection_owner_set (view->invisible, clipboard_atom, GDK_CURRENT_TIME);
+}
+
+void
+e_addressbook_view_paste (EAddressbookView *view)
+{
+	gtk_selection_convert (view->invisible, clipboard_atom,
+			       GDK_SELECTION_TYPE_STRING,
+			       GDK_CURRENT_TIME);
+}
+
+void
+e_addressbook_view_select_all (EAddressbookView *view)
+{
+	ESelectionModel *model = get_selection_model (view);
+
+	g_return_if_fail (model);
+
+	e_selection_model_select_all (model);
+}
+
 void
 e_addressbook_view_show_all(EAddressbookView *view)
 {
@@ -1080,30 +1257,61 @@ e_addressbook_view_can_create (EAddressbookView  *view)
 gboolean
 e_addressbook_view_can_print (EAddressbookView  *view)
 {
-	switch (view->view_type) {
-	case E_ADDRESSBOOK_VIEW_TABLE:
-		return e_table_selected_count (E_TABLE_SCROLLED(view->widget)->table) != 0;
-	case E_ADDRESSBOOK_VIEW_MINICARD:
-		return e_minicard_view_widget_selected_count (E_MINICARD_VIEW_WIDGET (view->object)) != 0;
-	default:
+	ESelectionModel *selection_model;
+
+	if (!e_addressbook_model_editable (view->model))
 		return FALSE;
-	}
+
+	selection_model = get_selection_model (view);
+	g_return_val_if_fail (selection_model != NULL, FALSE);
+
+	return e_selection_model_selected_count (selection_model) != 0;
 }
 
 gboolean
 e_addressbook_view_can_delete (EAddressbookView  *view)
 {
+	ESelectionModel *selection_model;
+
 	if (!e_addressbook_model_editable (view->model))
 		return FALSE;
 
-	switch (view->view_type) {
-	case E_ADDRESSBOOK_VIEW_TABLE:
-		return e_table_selected_count (E_TABLE_SCROLLED(view->widget)->table) != 0;
-	case E_ADDRESSBOOK_VIEW_MINICARD:
-		return e_minicard_view_widget_selected_count (E_MINICARD_VIEW_WIDGET (view->object)) != 0;
-	default:
+	selection_model = get_selection_model (view);
+	g_return_val_if_fail (selection_model != NULL, FALSE);
+
+	return e_selection_model_selected_count (selection_model) != 0;
+}
+
+gboolean
+e_addressbook_view_can_cut (EAddressbookView *view)
+{
+	return (e_addressbook_view_can_copy (view) && e_addressbook_model_editable (view->model));
+}
+
+gboolean
+e_addressbook_view_can_copy (EAddressbookView *view)
+{
+	ESelectionModel *selection_model;
+
+	if (!e_addressbook_model_editable (view->model))
 		return FALSE;
-	}
+
+	selection_model = get_selection_model (view);
+	g_return_val_if_fail (selection_model != NULL, FALSE);
+
+	return e_selection_model_selected_count (selection_model) != 0;
+}
+
+gboolean
+e_addressbook_view_can_paste (EAddressbookView *view)
+{
+	return TRUE;
+}
+
+gboolean
+e_addressbook_view_can_select_all (EAddressbookView *view)
+{
+	return e_addressbook_model_card_count (view->model) != 0;
 }
 
 gboolean
diff --git a/addressbook/gui/widgets/e-addressbook-view.h b/addressbook/gui/widgets/e-addressbook-view.h
index 19c83474fe..049376c96f 100644
--- a/addressbook/gui/widgets/e-addressbook-view.h
+++ b/addressbook/gui/widgets/e-addressbook-view.h
@@ -64,6 +64,9 @@ struct _EAddressbookView
 
 	EAddressbookModel   *model;
 
+	GtkWidget *invisible;
+	GList *clipboard_cards;
+
 	EBook *book;
 	char  *query;
 	guint editable : 1;
@@ -93,12 +96,20 @@ void       e_addressbook_view_setup_menus       (EAddressbookView  *view,
 
 void       e_addressbook_view_print             (EAddressbookView  *view);
 void       e_addressbook_view_delete_selection  (EAddressbookView  *view);
+void       e_addressbook_view_cut               (EAddressbookView  *view);
+void       e_addressbook_view_copy              (EAddressbookView  *view);
+void       e_addressbook_view_paste             (EAddressbookView  *view);
+void       e_addressbook_view_select_all        (EAddressbookView  *view);
 void       e_addressbook_view_show_all          (EAddressbookView  *view);
 void       e_addressbook_view_stop              (EAddressbookView  *view);
 
 gboolean   e_addressbook_view_can_create        (EAddressbookView  *view);
 gboolean   e_addressbook_view_can_print         (EAddressbookView  *view);
 gboolean   e_addressbook_view_can_delete        (EAddressbookView  *view);
+gboolean   e_addressbook_view_can_cut           (EAddressbookView  *view);
+gboolean   e_addressbook_view_can_copy          (EAddressbookView  *view);
+gboolean   e_addressbook_view_can_paste         (EAddressbookView  *view);
+gboolean   e_addressbook_view_can_select_all    (EAddressbookView  *view);
 gboolean   e_addressbook_view_can_stop          (EAddressbookView  *view);
 
 #ifdef __cplusplus
diff --git a/addressbook/gui/widgets/e-minicard-view-widget.c b/addressbook/gui/widgets/e-minicard-view-widget.c
index 576f8b3aab..8e9f3c2761 100644
--- a/addressbook/gui/widgets/e-minicard-view-widget.c
+++ b/addressbook/gui/widgets/e-minicard-view-widget.c
@@ -329,3 +329,10 @@ void       e_minicard_view_widget_jump_to_letter   (EMinicardViewWidget *view,
 	if (view->emv)
 		e_minicard_view_jump_to_letter(E_MINICARD_VIEW(view->emv), letter);
 }
+
+ESelectionModel *
+e_minicard_view_widget_get_selection_model (EMinicardViewWidget *view)
+{
+	if (view->emv)
+		return E_SELECTION_MODEL (E_REFLOW (view->emv)->selection);
+}
diff --git a/addressbook/gui/widgets/e-minicard-view-widget.h b/addressbook/gui/widgets/e-minicard-view-widget.h
index 22156e2588..edfe5135a4 100644
--- a/addressbook/gui/widgets/e-minicard-view-widget.h
+++ b/addressbook/gui/widgets/e-minicard-view-widget.h
@@ -69,6 +69,8 @@ void       e_minicard_view_widget_jump_to_letter   (EMinicardViewWidget *view,
 						    char           letter);
 GtkWidget *e_minicard_view_widget_new              (EAddressbookReflowAdapter *adapter);
 
+ESelectionModel *e_minicard_view_widget_get_selection_model (EMinicardViewWidget *view);
+
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */