Fix bug #2829.

2001-05-18  Federico Mena Quintero  <federico@ximian.com>

	Fix bug #2829.

	* gui/dialogs/delete-comp.c (delete_component_dialog): Allow the
	caller to specify whether just one or many components are to be
	deleted.

	* gui/e-calendar-table.c (tasks_popup_one): Popup menu definition
	for when one and only one task is selected.
	(tasks_popup_many): Likewise, for more than one task.
	(e_calendar_table_on_right_click): Do not create a structure for
	the closure data; we can simply pass the cal_table.  Use a
	different menu depending on the number of selected tasks.
	(mark_as_complete_cb): Renamed; now iterates over the selected
	rows.
	(delete_selected_components): New function to delete all the
	selected components.
	(delete_cb): Adjusted for delete_component_dialog().
	(open_task): New function, simply open a CalComponent in the task
	editor.
	(open_task_by_row): Renamed; use open_task().

	* gui/e-week-view.c (e_week_view_on_delete_appointment): Updated
	for delete_component_dialog().

	* gui/e-day-view.c (e_day_view_on_delete_appointment): Likewise.

svn path=/trunk/; revision=9886

5 files changed, 275 insertions, 141 deletions

diff --git a/calendar/gui/dialogs/delete-comp.c b/calendar/gui/dialogs/delete-comp.c
index f24c3493fb..a5ba1162db 100644
--- a/calendar/gui/dialogs/delete-comp.c
+++ b/calendar/gui/dialogs/delete-comp.c
@@ -1,7 +1,6 @@
 /* Evolution calendar - Delete calendar component dialog
  *
- * Copyright (C) 2000 Helix Code, Inc.
- * Copyright (C) 2000 Ximian, Inc.
+ * Copyright (C) 2001 Ximian, Inc.
  *
  * Author: Federico Mena-Quintero <federico@ximian.com>
  *
@@ -37,68 +36,109 @@
 
 /**
  * delete_component_dialog:
- * @comp: A calendar component.
+ * @comp: A calendar component if a single component is to be deleted, or NULL
+ * if more that one component is to be deleted.
+ * @n_comps: Number of components that are to be deleted.
+ * @vtype: Type of the components that are to be deleted.  This is ignored
+ * if only one component is to be deleted, and the vtype is extracted from
+ * the component instead.
  * @widget: A widget to use as a basis for conversion from UTF8 into font
  * encoding.
  * 
- * Pops up a dialog box asking the user whether he wants to delete a particular
- * calendar component.
+ * Pops up a dialog box asking the user whether he wants to delete a number
+ * of calendar components.
  * 
  * Return value: TRUE if the user clicked Yes, FALSE otherwise.
  **/
 gboolean
-delete_component_dialog (CalComponent *comp, GtkWidget *widget)
+delete_component_dialog (CalComponent *comp,
+			 int n_comps, CalComponentVType vtype,
+			 GtkWidget *widget)
 {
-	CalComponentText summary;
-	CalComponentVType vtype;
-	char *str, *tmp;
+	char *str;
 	GtkWidget *dialog;
 
-	g_return_val_if_fail (comp != NULL, FALSE);
-	g_return_val_if_fail (IS_CAL_COMPONENT (comp), FALSE);
+	if (comp) {
+		g_return_val_if_fail (IS_CAL_COMPONENT (comp), FALSE);
+		g_return_val_if_fail (n_comps == 1, FALSE);
+	} else {
+		g_return_val_if_fail (n_comps > 1, FALSE);
+		g_return_val_if_fail (vtype != CAL_COMPONENT_NO_TYPE, FALSE);
+	}
+
 	g_return_val_if_fail (widget != NULL, FALSE);
 	g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
 
-	vtype = cal_component_get_vtype (comp);
-	cal_component_get_summary (comp, &summary);
-
-	tmp = e_utf8_to_gtk_string (widget, summary.value);
-
-	switch (vtype) {
-	case CAL_COMPONENT_EVENT:
-		if (tmp)
-			str = g_strdup_printf (_("Are you sure you want to delete the appointment "
-						 "`%s'?"), tmp);
-		else
-			str = g_strdup (_("Are you sure you want to delete this "
-					  "untitled appointment?"));
-		break;
-
-	case CAL_COMPONENT_TODO:
-		if (tmp)
-			str = g_strdup_printf (_("Are you sure you want to delete the task "
-						 "`%s'?"), tmp);
-		else
-			str = g_strdup (_("Are you sure you want to delete this "
-					  "untitled task?"));
-		break;
-
-	case CAL_COMPONENT_JOURNAL:
-		if (tmp)
-			str = g_strdup_printf (_("Are you sure you want to delete the journal entry "
-						 "`%s'?"), tmp);
-		else
-			str = g_strdup (_("Are you sure want to delete this "
-					  "untitled journal entry?"));
-		break;
-
-	default:
-		g_message ("delete_component_dialog(): Cannot handle object of type %d", vtype);
-		return FALSE;
+	if (comp) {
+		CalComponentText summary;
+		char *tmp;
+
+		vtype = cal_component_get_vtype (comp);
+		cal_component_get_summary (comp, &summary);
+
+		tmp = e_utf8_to_gtk_string (widget, summary.value);
+
+		switch (vtype) {
+		case CAL_COMPONENT_EVENT:
+			if (tmp)
+				str = g_strdup_printf (_("Are you sure you want to delete "
+							 "the appointment `%s'?"), tmp);
+			else
+				str = g_strdup (_("Are you sure you want to delete this "
+						  "untitled appointment?"));
+			break;
+
+		case CAL_COMPONENT_TODO:
+			if (tmp)
+				str = g_strdup_printf (_("Are you sure you want to delete "
+							 "the task `%s'?"), tmp);
+			else
+				str = g_strdup (_("Are you sure you want to delete this "
+						  "untitled task?"));
+			break;
+
+		case CAL_COMPONENT_JOURNAL:
+			if (tmp)
+				str = g_strdup_printf (_("Are you sure you want to delete "
+							 "the journal entry `%s'?"), tmp);
+			else
+				str = g_strdup (_("Are you sure want to delete this "
+						  "untitled journal entry?"));
+			break;
+
+		default:
+			g_message ("delete_component_dialog(): Cannot handle object of type %d",
+				   vtype);
+			g_free (tmp);
+			return FALSE;
+		}
+
+		g_free (tmp);
+	} else {
+		switch (vtype) {
+		case CAL_COMPONENT_EVENT:
+			str = g_strdup_printf (_("Are you sure you want to delete "
+						 "%d appointments?"), n_comps);
+			break;
+
+		case CAL_COMPONENT_TODO:
+			str = g_strdup_printf (_("Are you sure you want to delete "
+						 "%d tasks?"), n_comps);
+			break;
+
+		case CAL_COMPONENT_JOURNAL:
+			str = g_strdup_printf (_("Are you sure you want to delete "
+						 "%d journal entries?"), n_comps);
+			break;
+
+		default:
+			g_message ("delete_component_dialog(): Cannot handle objects of type %d",
+				   vtype);
+			return FALSE;
+		}
 	}
 
 	dialog = gnome_question_dialog_modal (str, NULL, NULL);
-	g_free (tmp);
 	g_free (str);
 
 	if (gnome_dialog_run (GNOME_DIALOG (dialog)) == GNOME_YES)
diff --git a/calendar/gui/dialogs/delete-comp.h b/calendar/gui/dialogs/delete-comp.h
index d7243e75c4..3b728a3f7e 100644
--- a/calendar/gui/dialogs/delete-comp.h
+++ b/calendar/gui/dialogs/delete-comp.h
@@ -1,7 +1,6 @@
 /* Evolution calendar - Delete calendar component dialog
  *
- * Copyright (C) 2000 Helix Code, Inc.
- * Copyright (C) 2000 Ximian, Inc.
+ * Copyright (C) 2001 Ximian, Inc.
  *
  * Author: Federico Mena-Quintero <federico@ximian.com>
  *
@@ -26,6 +25,8 @@
 #include <gtk/gtkwidget.h>
 #include <cal-util/cal-component.h>
 
-gboolean delete_component_dialog (CalComponent *comp, GtkWidget *widget);
+gboolean delete_component_dialog (CalComponent *comp,
+				  int n_comps, CalComponentVType vtype,
+				  GtkWidget *widget);
 
 #endif
diff --git a/calendar/gui/e-calendar-table.c b/calendar/gui/e-calendar-table.c
index 83f54160c6..23104866ca 100644
--- a/calendar/gui/e-calendar-table.c
+++ b/calendar/gui/e-calendar-table.c
@@ -67,19 +67,12 @@ static gint e_calendar_table_on_right_click	(ETable		*table,
 						 ECalendarTable *cal_table);
 static void e_calendar_table_on_open_task	(GtkWidget	*menuitem,
 						 gpointer	 data);
-static void e_calendar_table_on_mark_task_complete (GtkWidget	*menuitem,
-						    gpointer	 data);
-static void e_calendar_table_on_delete_task	(GtkWidget	*menuitem,
-						 gpointer	 data);
 static gint e_calendar_table_on_key_press	(ETable		*table,
 						 gint		 row,
 						 gint		 col,
 						 GdkEventKey	*event,
 						 ECalendarTable *cal_table);
 
-static void e_calendar_table_open_task		(ECalendarTable *cal_table,
-						 gint		 row);
-
 static void e_calendar_table_apply_filter	(ECalendarTable	*cal_table);
 static void e_calendar_table_on_model_changed	(ETableModel	*model,
 						 ECalendarTable	*cal_table);
@@ -534,6 +527,28 @@ e_calendar_table_set_cal_client (ECalendarTable *cal_table,
 }
 
 
+/* Opens a task in the task editor */
+static void
+open_task (ECalendarTable *cal_table, CalComponent *comp)
+{
+	TaskEditor *tedit;
+
+	tedit = task_editor_new ();
+	task_editor_set_cal_client (tedit, calendar_model_get_cal_client (cal_table->model));
+	task_editor_set_todo_object (tedit, comp);
+	task_editor_focus (tedit);
+}
+
+/* Opens the task in the specified row */
+static void
+open_task_by_row (ECalendarTable *cal_table, int row)
+{
+	CalComponent *comp;
+
+	comp = calendar_model_get_component (cal_table->model, row);
+	open_task (cal_table, comp);
+}
+
 static void
 e_calendar_table_on_double_click (ETable *table,
 				  gint row, 
@@ -541,147 +556,219 @@ e_calendar_table_on_double_click (ETable *table,
 				  GdkEvent *event,
 				  ECalendarTable *cal_table)
 {
-	g_print ("In e_calendar_table_on_double_click\n");
-
-	e_calendar_table_open_task (cal_table, row);
+	open_task_by_row (cal_table, row);
 }
 
+/* Used from e_table_selected_row_foreach() */
+static void
+mark_row_complete_cb (int model_row, gpointer data)
+{
+	ECalendarTable *cal_table;
 
-static GnomeUIInfo e_calendar_table_popup_uiinfo[] = {
-	{ GNOME_APP_UI_ITEM, N_("Mark Complete"),
-	  N_("Mark the task complete"), e_calendar_table_on_mark_task_complete,
-	  NULL, NULL, 0, 0, 0, 0 },
+	cal_table = E_CALENDAR_TABLE (data);
+	calendar_model_mark_task_complete (cal_table->model, model_row);
+}
 
-	GNOMEUIINFO_SEPARATOR,
+/* Callback used for the "mark tasks as complete" menu item */
+static void
+mark_as_complete_cb (GtkWidget *menuitem, gpointer data)
+{
+	ECalendarTable *cal_table;
+	ETable *etable;
 
-	{ GNOME_APP_UI_ITEM, N_("Edit this task..."),
-	  N_("Edit the task"), e_calendar_table_on_open_task,
-	  NULL, NULL, 0, 0, 0, 0 },
-	{ GNOME_APP_UI_ITEM, N_("Delete this task"),
-	  N_("Delete the task"), e_calendar_table_on_delete_task,
-	  NULL, NULL, 0, 0, 0, 0 },
+	cal_table = E_CALENDAR_TABLE (data);
 
-	GNOMEUIINFO_END
-};
+	etable = e_table_scrolled_get_table (E_TABLE_SCROLLED (cal_table->etable));
+	e_table_selected_row_foreach (etable, mark_row_complete_cb, cal_table);
+}
 
+/* Used from e_table_selected_row_foreach(); puts the selected row number in an
+ * int pointed to by the closure data.
+ */
+static void
+get_selected_row_cb (int model_row, gpointer data)
+{
+	int *row;
 
-typedef struct _ECalendarMenuData ECalendarMenuData;
-struct _ECalendarMenuData {
-	ECalendarTable *cal_table;
-	gint row;
-};
+	row = data;
+	*row = model_row;
+}
 
-static gint
-e_calendar_table_on_right_click (ETable *table,
-				 gint row,
-				 gint col,
-				 GdkEventButton *event,
-				 ECalendarTable *cal_table)
+/* Returns the component that is selected in the table; only works if there is
+ * one and only one selected row.
+ */
+static CalComponent *
+get_selected_comp (ECalendarTable *cal_table)
 {
-	ECalendarMenuData menu_data;
-	GtkWidget *popup_menu;
+	ETable *etable;
+	int row;
 
-	menu_data.cal_table = cal_table;
-	menu_data.row = row;
+	etable = e_table_scrolled_get_table (E_TABLE_SCROLLED (cal_table->etable));
+	g_assert (e_table_selected_count (etable) == 1);
 
-	popup_menu = gnome_popup_menu_new (e_calendar_table_popup_uiinfo);
-	gnome_popup_menu_do_popup_modal (popup_menu, NULL, NULL, event,
-					 &menu_data);
+	row = -1;
+	e_table_selected_row_foreach (etable,
+				      get_selected_row_cb,
+				      &row);
+	g_assert (row != -1);
 
-	gtk_widget_destroy (popup_menu);
-
-	return TRUE;
+	return calendar_model_get_component (cal_table->model, row);
 }
 
+struct get_selected_uids_closure {
+	ECalendarTable *cal_table;
+	GSList *uids;
+};
 
+/* Used from e_table_selected_row_foreach(), builds a list of the selected UIDs */
 static void
-e_calendar_table_on_open_task (GtkWidget *menuitem,
-			       gpointer	  data)
+add_uid_cb (int model_row, gpointer data)
 {
-	ECalendarMenuData *menu_data = (ECalendarMenuData*) data;
+	struct get_selected_uids_closure *closure;
+	CalComponent *comp;
+	const char *uid;
 
-	e_calendar_table_open_task (menu_data->cal_table,
-				    menu_data->row);
-}
+	closure = data;
 
+	comp = calendar_model_get_component (closure->cal_table->model, model_row);
+	cal_component_get_uid (comp, &uid);
 
-static void
-e_calendar_table_on_mark_task_complete (GtkWidget *menuitem,
-					gpointer   data)
+	closure->uids = g_slist_prepend (closure->uids, (char *) uid);
+}
+
+static GSList *
+get_selected_uids (ECalendarTable *cal_table)
 {
-	ECalendarMenuData *menu_data = (ECalendarMenuData*) data;
+	struct get_selected_uids_closure closure;
+	ETable *etable;
 
-	calendar_model_mark_task_complete (menu_data->cal_table->model,
-					   menu_data->row);
-}
+	closure.cal_table = cal_table;
+	closure.uids = NULL;
+
+	etable = e_table_scrolled_get_table (E_TABLE_SCROLLED (cal_table->etable));
+	e_table_selected_row_foreach (etable, add_uid_cb, &closure);
 
+	return closure.uids;
+}
 
-/* Deletes a component from the table */
+/* Deletes all of the selected components in the table */
 static void
-delete_component (CalendarModel *model, int row, GtkWidget *widget)
+delete_selected_components (ECalendarTable *cal_table)
 {
-	CalComponent *comp;
+	CalClient *client;
+	GSList *uids, *l;
 
-	comp = calendar_model_get_component (model, row);
+	uids = get_selected_uids (cal_table);
 
-	if (delete_component_dialog (comp, widget)) {
-		CalClient *client;
+	client = calendar_model_get_cal_client (cal_table->model);
+
+	for (l = uids; l; l = l->next) {
 		const char *uid;
 
-		client = calendar_model_get_cal_client (model);
-		cal_component_get_uid (comp, &uid);
+		uid = l->data;
 
 		/* We don't check the return value; FALSE can mean the object
 		 * was not in the server anyways.
 		 */
 		cal_client_remove_object (client, uid);
 	}
+
+	g_slist_free (uids);
 }
 
+/* Callback for the "delete tasks" menu item */
 static void
-e_calendar_table_on_delete_task (GtkWidget *menuitem,
-				 gpointer   data)
+delete_cb (GtkWidget *menuitem, gpointer data)
 {
-	ECalendarMenuData *menu_data = (ECalendarMenuData*) data;
+	ECalendarTable *cal_table;
+	ETable *etable;
+	int n_selected;
+	CalComponent *comp;
+
+	cal_table = E_CALENDAR_TABLE (data);
+
+	etable = e_table_scrolled_get_table (E_TABLE_SCROLLED (cal_table->etable));
 
-	delete_component (menu_data->cal_table->model, menu_data->row, menuitem);
+	n_selected = e_table_selected_count (etable);
+	g_assert (n_selected > 0);
+
+	if (n_selected == 1)
+		comp = get_selected_comp (cal_table);
+	else
+		comp = NULL;
+
+	if (delete_component_dialog (comp, n_selected, CAL_COMPONENT_TODO, GTK_WIDGET (cal_table)))
+		delete_selected_components (cal_table);
 }
 
+static GnomeUIInfo tasks_popup_one[] = {
+	GNOMEUIINFO_ITEM_NONE (N_("Edit this task"), NULL, e_calendar_table_on_open_task),
+	GNOMEUIINFO_SEPARATOR,
+	GNOMEUIINFO_ITEM_NONE (N_("Mark as complete"), NULL, mark_as_complete_cb),
+	GNOMEUIINFO_ITEM_NONE (N_("Delete this task"), NULL, delete_cb),
+	GNOMEUIINFO_END
+};
 
+static GnomeUIInfo tasks_popup_many[] = {
+	GNOMEUIINFO_ITEM_NONE (N_("Mark tasks as complete"), NULL, mark_as_complete_cb),
+	GNOMEUIINFO_ITEM_NONE (N_("Delete selected tasks"), NULL, delete_cb),
+	GNOMEUIINFO_END
+};
 
 static gint
-e_calendar_table_on_key_press (ETable *table,
-			       gint row,
-			       gint col,
-			       GdkEventKey *event,
-			       ECalendarTable *cal_table)
+e_calendar_table_on_right_click (ETable *table,
+				 gint row,
+				 gint col,
+				 GdkEventButton *event,
+				 ECalendarTable *cal_table)
 {
-	if (event->keyval == GDK_Delete) {
-		delete_component (cal_table->model, row, GTK_WIDGET (table));
-		return TRUE;
-	}
+	GtkWidget *popup_menu;
+	int n_selected;
 
-	return FALSE;
+	n_selected = e_table_selected_count (table);
+	g_assert (n_selected > 0);
+
+	if (n_selected == 1)
+		popup_menu = gnome_popup_menu_new (tasks_popup_one);
+	else
+		popup_menu = gnome_popup_menu_new (tasks_popup_many);
+
+	gnome_popup_menu_do_popup_modal (popup_menu, NULL, NULL, event, cal_table);
+	gtk_widget_destroy (popup_menu);
+
+	return TRUE;
 }
 
 
 static void
-e_calendar_table_open_task (ECalendarTable *cal_table,
-			    gint row)
+e_calendar_table_on_open_task (GtkWidget *menuitem,
+			       gpointer	  data)
 {
-	TaskEditor *tedit;
+	ECalendarTable *cal_table;
 	CalComponent *comp;
 
-	tedit = task_editor_new ();
-	task_editor_set_cal_client (tedit, calendar_model_get_cal_client (cal_table->model));
+	cal_table = E_CALENDAR_TABLE (data);
 
-	comp = calendar_model_get_component (cal_table->model, row);
-	task_editor_set_todo_object (tedit, comp);
-
-	task_editor_focus (tedit);
+	comp = get_selected_comp (cal_table);
+	open_task (cal_table, comp);
 }
 
 
+static gint
+e_calendar_table_on_key_press (ETable *table,
+			       gint row,
+			       gint col,
+			       GdkEventKey *event,
+			       ECalendarTable *cal_table)
+{
+	if (event->keyval == GDK_Delete) {
+		delete_cb (NULL, cal_table);
+		return TRUE;
+	}
+
+	return FALSE;
+}
+
 /* Loads the state of the table (headers shown etc.) from the given file. */
 void
 e_calendar_table_load_state	(ECalendarTable *cal_table,
diff --git a/calendar/gui/e-day-view.c b/calendar/gui/e-day-view.c
index b19c7ff310..eac99a18aa 100644
--- a/calendar/gui/e-day-view.c
+++ b/calendar/gui/e-day-view.c
@@ -3321,6 +3321,7 @@ e_day_view_on_delete_appointment (GtkWidget *widget, gpointer data)
 {
 	EDayView *day_view;
 	EDayViewEvent *event;
+	CalComponentVType vtype;
 
 	day_view = E_DAY_VIEW (data);
 
@@ -3331,7 +3332,9 @@ e_day_view_on_delete_appointment (GtkWidget *widget, gpointer data)
 	if (day_view->editing_event_day >= 0)
 		e_day_view_stop_editing_event (day_view);
 
-	if (delete_component_dialog (event->comp, widget)) {
+	vtype = cal_component_get_vtype (event->comp);
+
+	if (delete_component_dialog (event->comp, 1, vtype, widget)) {
 		const char *uid;
 
 		cal_component_get_uid (event->comp, &uid);
diff --git a/calendar/gui/e-week-view.c b/calendar/gui/e-week-view.c
index 96270c04aa..447fce8b77 100644
--- a/calendar/gui/e-week-view.c
+++ b/calendar/gui/e-week-view.c
@@ -3450,6 +3450,7 @@ e_week_view_on_delete_appointment (GtkWidget *widget, gpointer data)
 {
 	EWeekView *week_view;
 	EWeekViewEvent *event;
+	CalComponentVType vtype;
 
 	week_view = E_WEEK_VIEW (data);
 
@@ -3459,7 +3460,9 @@ e_week_view_on_delete_appointment (GtkWidget *widget, gpointer data)
 	event = &g_array_index (week_view->events, EWeekViewEvent,
 				week_view->popup_event_num);
 
-	if (delete_component_dialog (event->comp, widget)) {
+	vtype = cal_component_get_vtype (event->comp);
+
+	if (delete_component_dialog (event->comp, 1, vtype, widget)) {
 		const char *uid;
 
 		cal_component_get_uid (event->comp, &uid);