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96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
/* Application Class
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*
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* Demonstrates a simple application.
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*
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* This example uses GtkApplication, GtkApplicationWindow, GtkBuilder
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* as well as GMenu and GResource. Due to the way GtkApplication is structured,
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* it is run as a separate process.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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static gboolean name_seen;
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static GtkWidget *placeholder;
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static void
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on_name_appeared (GDBusConnection *connection,
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const gchar *name,
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const gchar *name_owner,
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gpointer user_data)
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{
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name_seen = TRUE;
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}
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static void
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on_name_vanished (GDBusConnection *connection,
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const gchar *name,
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gpointer user_data)
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{
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if (!name_seen)
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return;
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if (placeholder)
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{
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gtk_widget_destroy (placeholder);
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g_object_unref (placeholder);
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placeholder = NULL;
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}
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}
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#ifdef G_OS_WIN32
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#define APP_EXTENSION ".exe"
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#else
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#define APP_EXTENSION
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#endif
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GtkWidget *
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do_application_demo (GtkWidget *toplevel)
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{
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static guint watch = 0;
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if (watch == 0)
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watch = g_bus_watch_name (G_BUS_TYPE_SESSION,
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"org.gtk.Demo2",
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0,
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on_name_appeared,
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on_name_vanished,
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NULL, NULL);
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if (placeholder == NULL)
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{
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const gchar *command;
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GError *error = NULL;
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if (g_file_test ("./gtk3-demo-application" APP_EXTENSION, G_FILE_TEST_IS_EXECUTABLE))
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command = "./gtk3-demo-application" APP_EXTENSION;
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else
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command = "gtk3-demo-application";
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if (!g_spawn_command_line_async (command, &error))
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{
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g_warning ("%s", error->message);
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g_error_free (error);
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}
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placeholder = gtk_label_new ("");
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g_object_ref_sink (placeholder);
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}
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else
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{
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g_dbus_connection_call_sync (g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL),
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"org.gtk.Demo2",
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"/org/gtk/Demo2",
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"org.gtk.Actions",
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"Activate",
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g_variant_new ("(sava{sv})", "quit", NULL, NULL),
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NULL,
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0,
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G_MAXINT,
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NULL, NULL);
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}
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return placeholder;
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}
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