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Diffstat (limited to 'src/remmina_widget_pool.c')
| -rw-r--r-- | src/remmina_widget_pool.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/src/remmina_widget_pool.c b/src/remmina_widget_pool.c new file mode 100644 index 0000000..53c32a0 --- /dev/null +++ b/src/remmina_widget_pool.c @@ -0,0 +1,144 @@ +/* + * Remmina - The GTK+ Remote Desktop Client + * Copyright (C) 2009 - Vic Lee + * Copyright (C) 2014-2015 Antenore Gatta, Fabio Castelli, Giovanni Panozzo + * Copyright (C) 2016-2023 Antenore Gatta, Giovanni Panozzo + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + * In addition, as a special exception, the copyright holders give + * permission to link the code of portions of this program with the + * OpenSSL library under certain conditions as described in each + * individual source file, and distribute linked combinations + * including the two. + * You must obey the GNU General Public License in all respects + * for all of the code used other than OpenSSL. * If you modify + * file(s) with this exception, you may extend this exception to your + * version of the file(s), but you are not obligated to do so. * If you + * do not wish to do so, delete this exception statement from your + * version. * If you delete this exception statement from all source + * files in the program, then also delete it here. + * + */ + +#include <gmodule.h> +#include "remmina_public.h" +#include "remmina_widget_pool.h" +#include "remmina/remmina_trace_calls.h" + +static GPtrArray *remmina_widget_pool = NULL; + +void remmina_widget_pool_init(void) +{ + TRACE_CALL(__func__); + remmina_widget_pool = g_ptr_array_new(); +} + +static void remmina_widget_pool_on_widget_destroy(GtkWidget *widget, gpointer data) +{ + TRACE_CALL(__func__); + g_ptr_array_remove(remmina_widget_pool, widget); +} + +void remmina_widget_pool_register(GtkWidget *widget) +{ + TRACE_CALL(__func__); + g_ptr_array_add(remmina_widget_pool, widget); + g_signal_connect(G_OBJECT(widget), "destroy", G_CALLBACK(remmina_widget_pool_on_widget_destroy), NULL); +} + +GtkWidget* +remmina_widget_pool_find(GType type, const gchar *tag) +{ + TRACE_CALL(__func__); + GtkWidget *widget; + gint i; + + if (remmina_widget_pool == NULL) + return NULL; + + for (i = 0; i < remmina_widget_pool->len; i++) { + widget = GTK_WIDGET(g_ptr_array_index(remmina_widget_pool, i)); + if (!G_TYPE_CHECK_INSTANCE_TYPE(widget, type)) + continue; + if (tag && g_strcmp0((const gchar*)g_object_get_data(G_OBJECT(widget), "tag"), tag) != 0) + continue; + return widget; + } + return NULL; +} + +GtkWidget* +remmina_widget_pool_find_by_window(GType type, GdkWindow *window) +{ + TRACE_CALL(__func__); + GtkWidget *widget; + gint i; + GdkWindow *parent; + + if (window == NULL || remmina_widget_pool == NULL) + return NULL; + + for (i = 0; i < remmina_widget_pool->len; i++) { + widget = GTK_WIDGET(g_ptr_array_index(remmina_widget_pool, i)); + if (!G_TYPE_CHECK_INSTANCE_TYPE(widget, type)) + continue; + /* gdk_window_get_toplevel won’t work here, if the window is an embedded client. So we iterate the window tree */ + for (parent = window; parent && parent != GDK_WINDOW_ROOT; parent = gdk_window_get_parent(parent)) { + if (gtk_widget_get_window(widget) == parent) + return widget; + } + } + return NULL; +} + +gint remmina_widget_pool_foreach(RemminaWidgetPoolForEachFunc callback, gpointer data) +{ + TRACE_CALL(__func__); + GtkWidget *widget; + gint i; + gint n = 0; + GPtrArray *wpcpy = NULL; + + if (remmina_widget_pool == NULL) + return 0; + + /* Make a copy of remmina_widget_pool, so we can survive when callback() + * remove an element from remmina_widget_pool */ + + wpcpy = g_ptr_array_sized_new(remmina_widget_pool->len); + + for (i = 0; i < remmina_widget_pool->len; i++) + g_ptr_array_add(wpcpy, g_ptr_array_index(remmina_widget_pool, i)); + + /* Scan the remmina_widget_pool and call callbac() on every element */ + for (i = 0; i < wpcpy->len; i++) { + widget = GTK_WIDGET(g_ptr_array_index(wpcpy, i)); + if (callback(widget, data)) + n++; + } + + /* Free the copy */ + g_ptr_array_unref(wpcpy); + return n; +} + +gint remmina_widget_pool_count() +{ + TRACE_CALL(__func__); + return remmina_widget_pool->len; +} + |