1 files changed, 494 insertions, 0 deletions
diff --git a/command/src/command.c b/command/src/command.c
new file mode 100644
index 00000000..f53bef43
--- /dev/null
+++ b/command/src/command.c
@@ -0,0 +1,494 @@
+/* command.c:
+ *
+ * Copyright (C) 2013-2014 Stefano Karapetsas
+ *
+ * This file is part of MATE Applets.
+ *
+ * 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Authors:
+ * Stefano Karapetsas <[email protected]>
+ */
+
+#include <config.h>
+
+#include <glib.h>
+#include <gmodule.h>
+#include <glib/gi18n.h>
+#include <gio/gio.h>
+#include <gtk/gtk.h>
+
+#include <mate-panel-applet.h>
+#include <mate-panel-applet-gsettings.h>
+#include "ma-command.h"
+
+/* Applet constants */
+#define APPLET_ICON "utilities-terminal"
+#define ERROR_OUTPUT "#"
+
+/* GSettings constants */
+#define COMMAND_SCHEMA "org.mate.panel.applet.command"
+#define COMMAND_KEY "command"
+#define INTERVAL_KEY "interval"
+#define SHOW_ICON_KEY "show-icon"
+#define WIDTH_KEY "width"
+
+/* GKeyFile constants */
+#define GK_COMMAND_GROUP "Command"
+#define GK_COMMAND_OUTPUT "Output"
+#define GK_COMMAND_ICON "Icon"
+
+#define GET_WIDGET(x) (GTK_WIDGET (gtk_builder_get_object (builder, (x))))
+#define GET_DIALOG(x) (GTK_DIALOG (gtk_builder_get_object (builder, (x))))
+
+typedef struct
+{
+ MatePanelApplet *applet;
+
+ GSettings *settings;
+
+ GtkLabel *label;
+ GtkImage *image;
+ GtkBox *box;
+ MaCommand *command;
+ GCancellable *cancellable;
+ gboolean running;
+
+ gchar *cmdline;
+ gint interval;
+ gint width;
+
+ guint timeout_id;
+} CommandApplet;
+
+static void command_about_callback (GtkAction *action, CommandApplet *command_applet);
+static void command_settings_callback (GtkAction *action, CommandApplet *command_applet);
+static gboolean command_execute (CommandApplet *command_applet);
+static gboolean command_text_changed (GtkWidget *widget, GdkEvent *event, gpointer user_data);
+static void interval_value_changed (GtkSpinButton *spin_button, gpointer user_data);
+static void width_value_changed (GtkSpinButton *spin_button, gpointer user_data);
+static void command_async_ready_callback (GObject *source_object, GAsyncResult *res, gpointer user_data);
+static gboolean timeout_callback (CommandApplet *command_applet);
+
+static const GtkActionEntry applet_menu_actions [] = {
+ { "Preferences", "document-properties", N_("_Preferences"), NULL, NULL, G_CALLBACK (command_settings_callback) },
+ { "About", "help-about", N_("_About"), NULL, NULL, G_CALLBACK (command_about_callback) }
+};
+
+static char *ui = "<menuitem name='Item 1' action='Preferences' />"
+ "<menuitem name='Item 2' action='About' />";
+
+static void
+command_applet_destroy (MatePanelApplet *applet_widget, CommandApplet *command_applet)
+{
+ g_assert (command_applet);
+
+ if (command_applet->timeout_id != 0)
+ {
+ g_source_remove (command_applet->timeout_id);
+ command_applet->timeout_id = 0;
+ }
+
+ if (command_applet->cmdline != NULL)
+ {
+ g_free (command_applet->cmdline);
+ command_applet->cmdline = NULL;
+ }
+
+ if (command_applet->command != NULL)
+ {
+ g_object_unref (command_applet->command);
+ }
+
+ g_object_unref (command_applet->settings);
+}
+
+/* Show the about dialog */
+static void
+command_about_callback (GtkAction *action, CommandApplet *command_applet)
+{
+ const char* authors[] = { "Stefano Karapetsas <[email protected]>", NULL };
+
+ gtk_show_about_dialog(NULL,
+ "title", _("About Command Applet"),
+ "version", VERSION,
+ "copyright", _("Copyright \xc2\xa9 2013-2014 Stefano Karapetsas\n"
+ "Copyright \xc2\xa9 2015-2020 MATE developers"),
+ "authors", authors,
+ "comments", _("Shows the output of a command"),
+ "translator-credits", _("translator-credits"),
+ "logo-icon-name", APPLET_ICON,
+ NULL );
+}
+
+static gboolean
+command_text_changed (GtkWidget *widget, GdkEvent *event, gpointer user_data)
+{
+ const gchar *text;
+ CommandApplet *command_applet;
+
+ command_applet = (CommandApplet*) user_data;
+ text = gtk_entry_get_text (GTK_ENTRY(widget));
+ if (g_strcmp0(command_applet->cmdline, text) == 0) {
+ return TRUE;
+ }
+
+ if (strlen (text) == 0) {
+ gtk_label_set_text (command_applet->label, ERROR_OUTPUT);
+ return TRUE;
+ }
+
+ g_settings_set_string (command_applet->settings, COMMAND_KEY, text);
+ return TRUE;
+}
+
+static void interval_value_changed (GtkSpinButton *spin_button, gpointer user_data)
+{
+ gint value;
+ CommandApplet *command_applet;
+
+ command_applet = (CommandApplet*) user_data;
+ value = gtk_spin_button_get_value_as_int (spin_button);
+ if (command_applet->interval == value) {
+ return;
+ }
+
+ g_settings_set_int (command_applet->settings, INTERVAL_KEY, value);
+}
+
+static void width_value_changed (GtkSpinButton *spin_button, gpointer user_data)
+{
+ gint value;
+ CommandApplet *command_applet;
+
+ command_applet = (CommandApplet*) user_data;
+ value = gtk_spin_button_get_value_as_int (spin_button);
+ if (command_applet->width == value) {
+ return;
+ }
+
+ g_settings_set_int (command_applet->settings, WIDTH_KEY, value);
+}
+
+/* Show the preferences dialog */
+static void
+command_settings_callback (GtkAction *action, CommandApplet *command_applet)
+{
+ GtkDialog *dialog;
+ GtkBuilder *builder;
+
+ builder = gtk_builder_new_from_resource ("/org/mate/mate-applets/command/command-preferences.ui");
+
+ dialog = GET_DIALOG ("preferences_dialog");
+
+ g_settings_bind (command_applet->settings, COMMAND_KEY, GET_WIDGET ("command_entry"), "text", G_SETTINGS_BIND_GET_NO_CHANGES);
+ g_settings_bind (command_applet->settings, INTERVAL_KEY, GET_WIDGET ("interval_spinbutton"), "value", G_SETTINGS_BIND_GET_NO_CHANGES);
+ g_settings_bind (command_applet->settings, WIDTH_KEY, GET_WIDGET ("width_spinbutton"), "value", G_SETTINGS_BIND_GET_NO_CHANGES);
+ g_settings_bind (command_applet->settings, SHOW_ICON_KEY, GET_WIDGET ("show_icon_check"), "active", G_SETTINGS_BIND_DEFAULT);
+
+ /* signals */
+ gtk_builder_add_callback_symbols (builder,
+ "on_command_entry_focus_out_event", G_CALLBACK (command_text_changed),
+ "on_interval_spinbutton_value_changed", G_CALLBACK (interval_value_changed),
+ "on_width_spinbutton_value_changed", G_CALLBACK (width_value_changed),
+ NULL);
+ gtk_builder_connect_signals (builder, command_applet);
+ g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), dialog);
+
+ g_object_unref (builder);
+
+ gtk_widget_show_all (GTK_WIDGET (dialog));
+}
+
+/* GSettings signal callbacks */
+static void
+settings_command_changed (GSettings *settings, gchar *key, CommandApplet *command_applet)
+{
+ GError *error = NULL;
+ gchar *cmdline;
+ gchar **argv;
+
+ cmdline = g_settings_get_string (command_applet->settings, COMMAND_KEY);
+ if (strlen (cmdline) == 0 || g_strcmp0(command_applet->cmdline, cmdline) == 0)
+ return;
+
+ if (!g_shell_parse_argv (cmdline, NULL, &argv, &error))
+ {
+ gtk_label_set_text (command_applet->label, ERROR_OUTPUT);
+ g_clear_error (&error);
+ return;
+ }
+ g_strfreev(argv);
+
+ if (command_applet->cmdline)
+ g_free (command_applet->cmdline);
+ command_applet->cmdline = cmdline;
+
+ command_execute (command_applet);
+}
+
+static void
+settings_width_changed (GSettings *settings, gchar *key, CommandApplet *command_applet)
+{
+ gint width;
+
+ width = g_settings_get_int (command_applet->settings, WIDTH_KEY);
+
+ if (command_applet->width != width) {
+ command_applet->width = width;
+ }
+}
+
+static void
+settings_interval_changed (GSettings *settings, gchar *key, CommandApplet *command_applet)
+{
+ gint interval;
+
+ interval = g_settings_get_int (command_applet->settings, INTERVAL_KEY);
+
+ /* minimum interval */
+ if (interval < 1)
+ interval = 1;
+
+ if (command_applet->interval == interval) {
+ return;
+ }
+ command_applet->interval = interval;
+
+ command_execute (command_applet);
+}
+
+static void
+process_command_output (CommandApplet *command_applet, gchar *output)
+{
+ gtk_widget_set_tooltip_text (GTK_WIDGET (command_applet->label), command_applet->cmdline);
+
+ if ((output == NULL) || (output[0] == '\0'))
+ {
+ gtk_label_set_text (command_applet->label, ERROR_OUTPUT);
+ return;
+ }
+
+ /* check if output is a custom GKeyFile */
+ if (g_str_has_prefix (output, "[Command]"))
+ {
+ GKeyFile *file = g_key_file_new ();
+ if (g_key_file_load_from_data (file, output, -1, G_KEY_FILE_NONE, NULL))
+ {
+ gchar *goutput = g_key_file_get_string (file, GK_COMMAND_GROUP, GK_COMMAND_OUTPUT, NULL);
+ gchar *icon = g_key_file_get_string (file, GK_COMMAND_GROUP, GK_COMMAND_ICON, NULL);
+
+ if (goutput)
+ {
+ gtk_label_set_use_markup (command_applet->label, TRUE);
+ gtk_label_set_markup (command_applet->label, goutput);
+ }
+
+ if (icon)
+ gtk_image_set_from_icon_name (command_applet->image, icon, GTK_ICON_SIZE_LARGE_TOOLBAR);
+
+ g_free (goutput);
+ g_free (icon);
+ }
+ else
+ gtk_label_set_text (command_applet->label, ERROR_OUTPUT);
+
+ g_key_file_free (file);
+ }
+ else
+ {
+ /* Remove leading and trailing whitespace */
+ g_strstrip (output);
+
+ /* check output length */
+ if (g_utf8_strlen (output, strlen(output)) > command_applet->width)
+ {
+ *g_utf8_offset_to_pointer(output, command_applet->width) = '\0';
+ }
+
+ gtk_label_set_text (command_applet->label, output);
+ }
+}
+
+static void command_async_ready_callback (GObject *source_object, GAsyncResult *res, gpointer user_data)
+{
+ gchar *output;
+ GError *error = NULL;
+ CommandApplet *command_applet;
+
+ command_applet = (CommandApplet*) user_data;
+
+ output = ma_command_run_finish (command_applet->command, res, &error);
+ if (error == NULL) {
+ process_command_output (command_applet, output);
+ } else {
+ if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_FAILED)) {
+ gtk_label_set_text (command_applet->label, ERROR_OUTPUT);
+ }
+ g_error_free (error);
+ }
+ g_free (output);
+ command_applet->running = FALSE;
+}
+
+static gboolean timeout_callback (CommandApplet *command_applet)
+{
+ /* command is empty, wait for next timer execution */
+ if (strlen (command_applet->cmdline) == 0) {
+ return G_SOURCE_CONTINUE;
+ }
+
+ /* command running, wait for next timer execution */
+ if (command_applet->running) {
+ return G_SOURCE_CONTINUE;
+ } else {
+ gchar **argv;
+ GError *error = NULL;
+ if (!g_shell_parse_argv (command_applet->cmdline, NULL, &argv, &error)) {
+ gtk_label_set_text (command_applet->label, ERROR_OUTPUT);
+ g_clear_error (&error);
+ return G_SOURCE_CONTINUE;
+ }
+ g_strfreev(argv);
+ command_execute (command_applet);
+ return G_SOURCE_REMOVE;
+ }
+}
+
+static gboolean
+command_execute (CommandApplet *command_applet)
+{
+ /* stop current timer */
+ if (command_applet->timeout_id != 0)
+ {
+ g_source_remove (command_applet->timeout_id);
+ command_applet->timeout_id = 0;
+ }
+
+ if (command_applet->running) {
+ g_cancellable_cancel (command_applet->cancellable);
+ }
+
+ g_object_set (G_OBJECT(command_applet->command), "command", command_applet->cmdline, NULL);
+ ma_command_run_async (command_applet->command,
+ command_applet->cancellable,
+ command_async_ready_callback,
+ command_applet);
+ if (!command_applet->running) {
+ command_applet->running = TRUE;
+ }
+
+ if (g_cancellable_is_cancelled (command_applet->cancellable)) {
+ g_cancellable_reset (command_applet->cancellable);
+ }
+
+ command_applet->timeout_id = g_timeout_add_seconds (command_applet->interval,
+ (GSourceFunc) timeout_callback,
+ command_applet);
+ return G_SOURCE_CONTINUE;
+}
+
+static gboolean
+command_applet_fill (MatePanelApplet* applet)
+{
+ CommandApplet *command_applet;
+
+ g_set_application_name (_("Command Applet"));
+ gtk_window_set_default_icon_name (APPLET_ICON);
+
+ mate_panel_applet_set_flags (applet, MATE_PANEL_APPLET_EXPAND_MINOR);
+ mate_panel_applet_set_background_widget (applet, GTK_WIDGET (applet));
+
+ command_applet = g_malloc0(sizeof(CommandApplet));
+ command_applet->applet = applet;
+ command_applet->settings = mate_panel_applet_settings_new (applet, COMMAND_SCHEMA);
+
+ command_applet->interval = g_settings_get_int (command_applet->settings, INTERVAL_KEY);
+ command_applet->cmdline = g_settings_get_string (command_applet->settings, COMMAND_KEY);
+ command_applet->width = g_settings_get_int (command_applet->settings, WIDTH_KEY);
+ command_applet->command = ma_command_new(command_applet->cmdline, NULL);
+ command_applet->cancellable = g_cancellable_new ();
+
+ command_applet->box = GTK_BOX (gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0));
+ command_applet->image = GTK_IMAGE (gtk_image_new_from_icon_name (APPLET_ICON, GTK_ICON_SIZE_LARGE_TOOLBAR));
+ command_applet->label = GTK_LABEL (gtk_label_new (ERROR_OUTPUT));
+ command_applet->timeout_id = 0;
+
+ /* we add the Gtk label into the applet */
+ gtk_box_pack_start (command_applet->box,
+ GTK_WIDGET (command_applet->image),
+ TRUE, TRUE, 0);
+ gtk_box_pack_start (command_applet->box,
+ GTK_WIDGET (command_applet->label),
+ TRUE, TRUE, 0);
+
+ gtk_container_add (GTK_CONTAINER (applet),
+ GTK_WIDGET (command_applet->box));
+
+ gtk_widget_show_all (GTK_WIDGET (command_applet->applet));
+
+ g_signal_connect(G_OBJECT (command_applet->applet), "destroy",
+ G_CALLBACK (command_applet_destroy),
+ command_applet);
+
+ /* GSettings signals */
+ g_signal_connect(command_applet->settings,
+ "changed::" COMMAND_KEY,
+ G_CALLBACK (settings_command_changed),
+ command_applet);
+ g_signal_connect(command_applet->settings,
+ "changed::" INTERVAL_KEY,
+ G_CALLBACK (settings_interval_changed),
+ command_applet);
+ g_signal_connect(command_applet->settings,
+ "changed::" WIDTH_KEY,
+ G_CALLBACK (settings_width_changed),
+ command_applet);
+ g_settings_bind (command_applet->settings,
+ SHOW_ICON_KEY,
+ command_applet->image,
+ "visible",
+ G_SETTINGS_BIND_DEFAULT);
+
+ /* set up context menu */
+ GtkActionGroup *action_group = gtk_action_group_new ("Command Applet Actions");
+ gtk_action_group_set_translation_domain (action_group, GETTEXT_PACKAGE);
+ gtk_action_group_add_actions (action_group, applet_menu_actions,
+ G_N_ELEMENTS (applet_menu_actions), command_applet);
+ mate_panel_applet_setup_menu (command_applet->applet, ui, action_group);
+
+ /* first command execution */
+ command_execute (command_applet);
+ return TRUE;
+}
+
+/* this function, called by mate-panel, will create the applet */
+static gboolean
+command_factory (MatePanelApplet* applet, const char* iid, gpointer data)
+{
+ gboolean retval = FALSE;
+
+ if (!g_strcmp0 (iid, "CommandApplet"))
+ retval = command_applet_fill (applet);
+
+ return retval;
+}
+
+/* needed by mate-panel applet library */
+MATE_PANEL_APPLET_OUT_PROCESS_FACTORY("CommandAppletFactory",
+ PANEL_TYPE_APPLET,
+ "Command applet",
+ command_factory,
+ NULL)