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path: root/timerapplet/timerapplet.c
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/* timerapplet.c:
 *
 * Copyright (C) 2014 Stefano Karapetsas
 *
 *  This file is part of MATE Applets.
 *
 *  MATE Applets 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  MATE Applets 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 MATE Applets.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Authors:
 *      Stefano Karapetsas <stefano@karapetsas.com>
 */

#include <config.h>

#include <glib.h>
#include <glib/gi18n.h>
#include <gio/gio.h>
#include <gtk/gtk.h>

#include <libnotify/notify.h>
#include <libmate-desktop/mate-aboutdialog.h>

#include <mate-panel-applet.h>
#include <mate-panel-applet-gsettings.h>

/* Applet constants */
#define APPLET_ICON  "mate-panel-clock"
#define STEP         100

/* GSettings constants */
#define TIMER_SCHEMA            "org.mate.panel.applet.timer"
#define NAME_KEY                "name"
#define DURATION_KEY            "duration"
#define SHOW_NOTIFICATION_KEY   "show-notification"
#define SHOW_DIALOG_KEY         "show-dialog"

typedef struct
{
    MatePanelApplet   *applet;

    GSettings         *settings;

    GtkActionGroup    *action_group;
    GtkLabel          *label;
    GtkImage          *image;
    GtkImage          *pause_image;
    GtkHBox           *hbox;

    GtkSpinButton     *hours;
    GtkSpinButton     *minutes;
    GtkSpinButton     *seconds;

    gboolean           active;
    gboolean           pause;
    gint               elapsed;

    guint              timeout_id;
} TimerApplet;

static void timer_start_callback (GtkAction *action, TimerApplet *applet);
static void timer_pause_callback (GtkAction *action, TimerApplet *applet);
static void timer_stop_callback (GtkAction *action, TimerApplet *applet);
static void timer_about_callback (GtkAction *action, TimerApplet *applet);
static void timer_preferences_callback (GtkAction *action, TimerApplet *applet);

static const GtkActionEntry applet_menu_actions [] = {
    { "Start", GTK_STOCK_MEDIA_PLAY, N_("_Start timer"), NULL, NULL, G_CALLBACK (timer_start_callback) },
    { "Pause", GTK_STOCK_MEDIA_PAUSE, N_("P_ause timer"), NULL, NULL, G_CALLBACK (timer_pause_callback) },
    { "Stop", GTK_STOCK_MEDIA_STOP, N_("S_top timer"), NULL, NULL, G_CALLBACK (timer_stop_callback) },
    { "Preferences", GTK_STOCK_PROPERTIES, N_("_Preferences"), NULL, NULL, G_CALLBACK (timer_preferences_callback) },
    { "About", GTK_STOCK_ABOUT, N_("_About"), NULL, NULL, G_CALLBACK (timer_about_callback) }
};

static char *ui = "<menuitem name='Item 1' action='Start' />"
                  "<menuitem name='Item 2' action='Pause' />"
                  "<menuitem name='Item 3' action='Stop' />"
                  "<menuitem name='Item 4' action='Preferences' />"
                  "<menuitem name='Item 5' action='About' />";

static void
timer_applet_destroy (MatePanelApplet *applet_widget, TimerApplet *applet)
{
    g_assert (applet);

    if (applet->timeout_id != 0)
    {
        g_source_remove(applet->timeout_id);
        applet->timeout_id = 0;
    }

    g_object_unref (applet->settings);

    notify_uninit ();
}

/* timer management */
static gboolean
timer_callback (TimerApplet *applet)
{
    gboolean retval = TRUE;
    gchar *label;
    gchar *name;
    gchar *tooltip;
    gint hours, minutes, seconds, duration, remaining;

    label = NULL;
    name = NULL;
    tooltip = NULL;

    if (!applet->active)
    {
        gtk_label_set_text (applet->label, "");
        gtk_widget_set_tooltip_text (GTK_WIDGET (applet->label), "");
        gtk_widget_hide (GTK_WIDGET (applet->pause_image));
    }
    else
    {
        if (applet->active && !applet->pause)
            applet->elapsed += STEP;

        duration = g_settings_get_int (applet->settings, DURATION_KEY);
        name = g_settings_get_string (applet->settings, NAME_KEY);

        remaining = duration - (applet->elapsed / 1000);

        if (remaining <= 0)
        {
            applet->active = FALSE;
            gtk_label_set_text (applet->label, _("Finished"));
            gtk_widget_set_tooltip_text (GTK_WIDGET (applet->label), name);
            gtk_widget_hide (GTK_WIDGET (applet->pause_image));

            if (g_settings_get_boolean (applet->settings, SHOW_NOTIFICATION_KEY))
            {
                NotifyNotification *n;
                n = notify_notification_new (name, _("Timer finished!"), APPLET_ICON);
                notify_notification_set_timeout (n, 30000);
                notify_notification_show (n, NULL);
                g_object_unref (G_OBJECT (n));
            }

            if (g_settings_get_boolean (applet->settings, SHOW_DIALOG_KEY))
            {
                GtkWidget *dialog = gtk_message_dialog_new_with_markup (NULL,
                                                                        GTK_DIALOG_MODAL,
                                                                        GTK_MESSAGE_INFO,
                                                                        GTK_BUTTONS_OK,
                                                                        "<b>%s</b>\n\n%s", name, _("Timer finished!"));
                gtk_dialog_run (GTK_DIALOG (dialog));
                gtk_widget_destroy (dialog);
            }

            /* stop further calls */
            retval = FALSE;
        }
        else
        {
            hours = remaining / 60 / 60;
            minutes = remaining / 60 % 60;
            seconds = remaining % 60;

            if (hours > 0)
                label = g_strdup_printf ("%02d:%02d:%02d", hours, minutes, seconds);
            else
                label = g_strdup_printf ("%02d:%02d", minutes, seconds);

            hours = duration / 60 / 60;
            minutes = duration / 60 % 60;
            seconds = duration % 60;

            if (hours > 0)
                tooltip = g_strdup_printf ("%s (%02d:%02d:%02d)", name, hours, minutes, seconds);
            else
                tooltip = g_strdup_printf ("%s (%02d:%02d)", name, minutes, seconds);

            gtk_label_set_text (applet->label, label);
            gtk_widget_set_tooltip_text (GTK_WIDGET (applet->label), tooltip);
            gtk_widget_set_visible (GTK_WIDGET (applet->pause_image), applet->pause);
        }

        g_free (label);
        g_free (name);
        g_free (tooltip);
    }

    /* update actions sensitiveness */
    gtk_action_set_sensitive (gtk_action_group_get_action (applet->action_group, "Start"), !applet->active || applet->pause);
    gtk_action_set_sensitive (gtk_action_group_get_action (applet->action_group, "Pause"), applet->active && !applet->pause);
    gtk_action_set_sensitive (gtk_action_group_get_action (applet->action_group, "Stop"), applet->active);
    gtk_action_set_sensitive (gtk_action_group_get_action (applet->action_group, "Preferences"), !applet->active && !applet->pause);

    return retval;
}

/* start action */
static void
timer_start_callback (GtkAction *action, TimerApplet *applet)
{
    applet->active = TRUE;
    if (applet->pause)
        applet->pause = FALSE;
    else
        applet->elapsed = 0;
    applet->timeout_id = g_timeout_add (STEP, (GSourceFunc) timer_callback, applet);
}

/* pause action */
static void
timer_pause_callback (GtkAction *action, TimerApplet *applet)
{
    applet->pause = TRUE;
    if (applet->timeout_id != 0)
    {
        g_source_remove(applet->timeout_id);
        applet->timeout_id = 0;
    }
    timer_callback (applet);
}

/* stop action */
static void
timer_stop_callback (GtkAction *action, TimerApplet *applet)
{
    applet->active = FALSE;
    if (applet->timeout_id != 0)
    {
        g_source_remove(applet->timeout_id);
        applet->timeout_id = 0;
    }
    timer_callback (applet);
}

/* Show the about dialog */
static void
timer_about_callback (GtkAction *action, TimerApplet *applet)
{
    const char* authors[] = { "Stefano Karapetsas <stefano@karapetsas.com>", NULL };

    mate_show_about_dialog(NULL,
                          "version", VERSION,
                          "copyright", "Copyright © 2014 Stefano Karapetsas",
                          "authors", authors,
                          "comments", _("Start a timer and receive a notification when it is finished"),
                          "translator-credits", _("translator-credits"),
                          "logo-icon-name", APPLET_ICON,
                          NULL);
}

/* calculate duration and save in GSettings */
static void
timer_spin_button_value_changed (GtkSpinButton *spinbutton, TimerApplet *applet)
{
    gint duration = 0;

    duration += gtk_spin_button_get_value (applet->hours) * 60 * 60;
    duration += gtk_spin_button_get_value (applet->minutes) * 60;
    duration += gtk_spin_button_get_value (applet->seconds);

    g_settings_set_int (applet->settings, DURATION_KEY, duration);
}

/* Show the preferences dialog */
static void
timer_preferences_callback (GtkAction *action, TimerApplet *applet)
{
    GtkDialog *dialog;
    GtkTable *table;
    GtkWidget *widget;
    gint duration, hours, minutes, seconds;

    duration = g_settings_get_int (applet->settings, DURATION_KEY);
    hours = duration / 60 / 60;
    minutes = duration / 60 % 60;
    seconds = duration % 60;

    dialog = GTK_DIALOG (gtk_dialog_new_with_buttons(_("Timer Applet Preferences"),
                                                     NULL,
                                                     GTK_DIALOG_MODAL,
                                                     GTK_STOCK_CLOSE,
                                                     GTK_RESPONSE_CLOSE,
                                                     NULL));
    table = gtk_table_new (6, 2, FALSE);
    gtk_table_set_row_spacings (table, 12);
    gtk_table_set_col_spacings (table, 12);

    gtk_window_set_default_size (GTK_WINDOW (dialog), 350, 150);
    gtk_container_set_border_width (GTK_CONTAINER (dialog), 10);

    widget = gtk_label_new (_("Name:"));
    gtk_misc_set_alignment (GTK_MISC (widget), 1.0, 0.5);
    gtk_table_attach (table, widget, 1, 2, 0, 1,
                      GTK_FILL, GTK_FILL,
                      0, 0);

    widget = gtk_entry_new ();
    gtk_table_attach (table, widget, 2, 3, 0, 1,
                      GTK_EXPAND | GTK_FILL | GTK_SHRINK, GTK_FILL,
                      0, 0);
    g_settings_bind (applet->settings, NAME_KEY, widget, "text", G_SETTINGS_BIND_DEFAULT);

    widget = gtk_label_new (_("Hours:"));
    gtk_misc_set_alignment (GTK_MISC (widget), 1.0, 0.5);
    gtk_table_attach (table, widget, 1, 2, 1, 2,
                      GTK_FILL, GTK_FILL,
                      0, 0);

    widget = gtk_spin_button_new_with_range (0.0, 100.0, 1.0);
    gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), hours);
    gtk_table_attach (table, widget, 2, 3, 1, 2,
                      GTK_EXPAND | GTK_FILL | GTK_SHRINK, GTK_FILL,
                      0, 0);
    applet->hours = GTK_SPIN_BUTTON (widget);
    g_signal_connect (widget, "value-changed", G_CALLBACK (timer_spin_button_value_changed), applet);

    widget = gtk_label_new (_("Minutes:"));
    gtk_misc_set_alignment (GTK_MISC (widget), 1.0, 0.5);
    gtk_table_attach (table, widget, 1, 2, 2, 3,
                      GTK_FILL, GTK_FILL,
                      0, 0);

    widget = gtk_spin_button_new_with_range (0.0, 59.0, 1.0);
    gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), minutes);
    gtk_table_attach (table, widget, 2, 3, 2, 3,
                      GTK_EXPAND | GTK_FILL | GTK_SHRINK, GTK_FILL,
                      0, 0);
    applet->minutes = GTK_SPIN_BUTTON (widget);
    g_signal_connect (widget, "value-changed", G_CALLBACK (timer_spin_button_value_changed), applet);

    widget = gtk_label_new (_("Seconds:"));
    gtk_misc_set_alignment (GTK_MISC (widget), 1.0, 0.5);
    gtk_table_attach (table, widget, 1, 2, 3, 4,
                      GTK_FILL, GTK_FILL,
                      0, 0);

    widget = gtk_spin_button_new_with_range (0.0, 59.0, 1.0);
    gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), seconds);
    gtk_table_attach (table, widget, 2, 3, 3, 4,
                      GTK_EXPAND | GTK_FILL | GTK_SHRINK, GTK_FILL,
                      0, 0);
    applet->seconds = GTK_SPIN_BUTTON (widget);
    g_signal_connect (widget, "value-changed", G_CALLBACK (timer_spin_button_value_changed), applet);

    widget = gtk_check_button_new_with_label (_("Show notification popup"));
    gtk_table_attach (table, widget, 2, 3, 4, 5,
                      GTK_EXPAND | GTK_FILL | GTK_SHRINK, GTK_FILL,
                      0, 0);
    g_settings_bind (applet->settings, SHOW_NOTIFICATION_KEY, widget, "active", G_SETTINGS_BIND_DEFAULT);

    widget = gtk_check_button_new_with_label (_("Show dialog"));
    gtk_table_attach (table, widget, 2, 3, 5, 6,
                      GTK_EXPAND | GTK_FILL | GTK_SHRINK, GTK_FILL,
                      0, 0);
    g_settings_bind (applet->settings, SHOW_DIALOG_KEY, widget, "active", G_SETTINGS_BIND_DEFAULT);

    gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (dialog)), GTK_WIDGET (table), TRUE, TRUE, 0);

    g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), dialog);

    gtk_widget_show_all (GTK_WIDGET (dialog));
}

static gboolean
timer_applet_fill (MatePanelApplet* applet_widget)
{
    TimerApplet *applet;

    g_set_application_name (_("Timer Applet"));
    gtk_window_set_default_icon_name (APPLET_ICON);

    if (!notify_is_initted ())
        notify_init ("timer-applet");

    mate_panel_applet_set_flags (applet_widget, MATE_PANEL_APPLET_EXPAND_MINOR);
    mate_panel_applet_set_background_widget (applet_widget, GTK_WIDGET (applet));

    applet = g_malloc0(sizeof(TimerApplet));
    applet->applet = applet_widget;
    applet->settings = mate_panel_applet_settings_new (applet_widget,TIMER_SCHEMA);
    applet->timeout_id = 0;
    applet->active = FALSE;
    applet->pause = FALSE;

    applet->hbox = GTK_HBOX (gtk_hbox_new (FALSE, 0));
    applet->image = GTK_IMAGE (gtk_image_new_from_icon_name (APPLET_ICON, GTK_ICON_SIZE_BUTTON));
    applet->pause_image = GTK_IMAGE (gtk_image_new_from_icon_name (GTK_STOCK_MEDIA_PAUSE, GTK_ICON_SIZE_BUTTON));
    applet->label = GTK_LABEL (gtk_label_new (""));

    /* we add the Gtk label into the applet */
    gtk_box_pack_start (GTK_BOX (applet->hbox),
                        GTK_WIDGET (applet->image),
                        TRUE, TRUE, 0);
    gtk_box_pack_start (GTK_BOX (applet->hbox),
                        GTK_WIDGET (applet->pause_image),
                        TRUE, TRUE, 0);
    gtk_box_pack_start (GTK_BOX (applet->hbox),
                        GTK_WIDGET (applet->label),
                        TRUE, TRUE, 3);

    gtk_container_add (GTK_CONTAINER (applet_widget),
                       GTK_WIDGET (applet->hbox));

    gtk_widget_show_all (GTK_WIDGET (applet->applet));
    gtk_widget_hide (GTK_WIDGET (applet->pause_image));

    g_signal_connect(G_OBJECT (applet->applet), "destroy",
                     G_CALLBACK (timer_applet_destroy),
                     applet);

    /* set up context menu */
    applet->action_group = gtk_action_group_new ("Timer Applet Actions");
    gtk_action_group_set_translation_domain (applet->action_group, GETTEXT_PACKAGE);
    gtk_action_group_add_actions (applet->action_group, applet_menu_actions,
                                  G_N_ELEMENTS (applet_menu_actions), applet);
    mate_panel_applet_setup_menu (applet->applet, ui, applet->action_group);

    /* execute callback to set actions sensitiveness */
    timer_callback (applet);

    return TRUE;
}

/* this function, called by mate-panel, will create the applet */
static gboolean
timer_factory (MatePanelApplet* applet, const char* iid, gpointer data)
{
    gboolean retval = FALSE;

    if (!g_strcmp0 (iid, "TimerApplet"))
        retval = timer_applet_fill (applet);

    return retval;
}

/* needed by mate-panel applet library */
MATE_PANEL_APPLET_OUT_PROCESS_FACTORY("TimerAppletFactory",
                                      PANEL_TYPE_APPLET,
                                      "Timer applet",
                                      timer_factory,
                                      NULL)