path: root/widgets/misc/e-activity.c

/*
 * e-activity.c
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include "e-activity.h"

#include <stdarg.h>
#include <glib/gi18n.h>

#include "e-util/e-util.h"

#define E_ACTIVITY_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_ACTIVITY, EActivityPrivate))

struct _EActivityPrivate {
    gchar *icon_name;
    gchar *primary_text;
    gchar *secondary_text;
    gdouble percent;

    guint allow_cancel  : 1;
    guint cancelled     : 1;
    guint clickable     : 1;
    guint completed     : 1;
};

enum {
    PROP_0,
    PROP_ALLOW_CANCEL,
    PROP_CLICKABLE,
    PROP_ICON_NAME,
    PROP_PERCENT,
    PROP_PRIMARY_TEXT,
    PROP_SECONDARY_TEXT
};

enum {
    CANCELLED,
    CLICKED,
    COMPLETED,
    DESCRIBE,
    LAST_SIGNAL
};

static gpointer parent_class;
static gulong signals[LAST_SIGNAL];

static gboolean
activity_describe_accumulator (GSignalInvocationHint *ihint,
                               GValue *return_accu,
                               const GValue *handler_return,
                               gpointer accu_data)
{
    const gchar *string;

    string = g_value_get_string (handler_return);
    g_value_set_string (return_accu, string);

    return (string == NULL);
}

static void
activity_set_property (GObject *object,
                       guint property_id,
                       const GValue *value,
                       GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_ALLOW_CANCEL:
            e_activity_set_allow_cancel (
                E_ACTIVITY (object),
                g_value_get_boolean (value));
            return;

        case PROP_CLICKABLE:
            e_activity_set_clickable (
                E_ACTIVITY (object),
                g_value_get_boolean (value));
            return;

        case PROP_ICON_NAME:
            e_activity_set_icon_name (
                E_ACTIVITY (object),
                g_value_get_string (value));
            return;

        case PROP_PERCENT:
            e_activity_set_percent (
                E_ACTIVITY (object),
                g_value_get_double (value));
            return;

        case PROP_PRIMARY_TEXT:
            e_activity_set_primary_text (
                E_ACTIVITY (object),
                g_value_get_string (value));
            return;

        case PROP_SECONDARY_TEXT:
            e_activity_set_secondary_text (
                E_ACTIVITY (object),
                g_value_get_string (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
activity_get_property (GObject *object,
                       guint property_id,
                       GValue *value,
                       GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_ALLOW_CANCEL:
            g_value_set_boolean (
                value, e_activity_get_allow_cancel (
                E_ACTIVITY (object)));
            return;

        case PROP_CLICKABLE:
            g_value_set_boolean (
                value, e_activity_get_clickable (
                E_ACTIVITY (object)));
            return;

        case PROP_ICON_NAME:
            g_value_set_string (
                value, e_activity_get_icon_name (
                E_ACTIVITY (object)));
            return;

        case PROP_PERCENT:
            g_value_set_double (
                value, e_activity_get_percent (
                E_ACTIVITY (object)));
            return;

        case PROP_PRIMARY_TEXT:
            g_value_set_string (
                value, e_activity_get_primary_text (
                E_ACTIVITY (object)));
            return;

        case PROP_SECONDARY_TEXT:
            g_value_set_string (
                value, e_activity_get_secondary_text (
                E_ACTIVITY (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
activity_finalize (GObject *object)
{
    EActivityPrivate *priv;

    priv = E_ACTIVITY_GET_PRIVATE (object);

    g_free (priv->icon_name);
    g_free (priv->primary_text);
    g_free (priv->secondary_text);

    /* Chain up to parent's finalize() method. */
    G_OBJECT_CLASS (parent_class)->finalize (object);
}

static void
activity_cancelled (EActivity *activity)
{
    activity->priv->cancelled = TRUE;
}

static void
activity_completed (EActivity *activity)
{
    activity->priv->completed = TRUE;
}

static void
activity_clicked (EActivity *activity)
{
    /* Allow subclasses to safely chain up. */
}

static gchar *
activity_describe (EActivity *activity)
{
    GString *string;
    const gchar *text;
    gboolean cancelled;
    gboolean completed;
    gdouble percent;

    string = g_string_sized_new (256);
    text = e_activity_get_primary_text (activity);
    cancelled = e_activity_is_cancelled (activity);
    completed = e_activity_is_completed (activity);
    percent = e_activity_get_percent (activity);

    if (cancelled) {
        /* Translators: This is a cancelled activity. */
        g_string_printf (string, _("%s (cancelled)"), text);
    } else if (completed) {
        /* Translators: This is a completed activity. */
        g_string_printf (string, _("%s (completed)"), text);
    } else if (percent < 0.0) {
        /* Translators: This is an activity whose percent
         * complete is unknown. */
        g_string_printf (string, _("%s..."), text);
    } else {
        /* Translators: This is an activity whose percent
         * complete is known. */
        g_string_printf (
            string, _("%s (%d%% complete)"), text,
            (gint) (percent * 100.0 + 0.5));
    }

    return g_string_free (string, FALSE);
}

static void
activity_class_init (EActivityClass *class)
{
    GObjectClass *object_class;

    parent_class = g_type_class_peek_parent (class);
    g_type_class_add_private (class, sizeof (EActivityPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = activity_set_property;
    object_class->get_property = activity_get_property;
    object_class->finalize = activity_finalize;

    class->cancelled = activity_cancelled;
    class->completed = activity_completed;
    class->clicked = activity_clicked;
    class->describe = activity_describe;

    g_object_class_install_property (
        object_class,
        PROP_ALLOW_CANCEL,
        g_param_spec_boolean (
            "allow-cancel",
            NULL,
            NULL,
            FALSE,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));

    g_object_class_install_property (
        object_class,
        PROP_CLICKABLE,
        g_param_spec_boolean (
            "clickable",
            NULL,
            NULL,
            FALSE,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));

    g_object_class_install_property (
        object_class,
        PROP_ICON_NAME,
        g_param_spec_string (
            "icon-name",
            NULL,
            NULL,
            NULL,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));

    g_object_class_install_property (
        object_class,
        PROP_PERCENT,
        g_param_spec_double (
            "percent",
            NULL,
            NULL,
            -G_MAXDOUBLE,
            G_MAXDOUBLE,
            -1.0,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));

    g_object_class_install_property (
        object_class,
        PROP_PRIMARY_TEXT,
        g_param_spec_string (
            "primary-text",
            NULL,
            NULL,
            NULL,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));

    g_object_class_install_property (
        object_class,
        PROP_SECONDARY_TEXT,
        g_param_spec_string (
            "secondary-text",
            NULL,
            NULL,
            NULL,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));

    signals[CANCELLED] = g_signal_new (
        "cancelled",
        G_OBJECT_CLASS_TYPE (object_class),
        G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (EActivityClass, cancelled),
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[CLICKED] = g_signal_new (
        "clicked",
        G_OBJECT_CLASS_TYPE (object_class),
        G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (EActivityClass, clicked),
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[COMPLETED] = g_signal_new (
        "completed",
        G_OBJECT_CLASS_TYPE (object_class),
        G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (EActivityClass, completed),
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[DESCRIBE] = g_signal_new (
        "describe",
        G_OBJECT_CLASS_TYPE (object_class),
        G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (EActivityClass, describe),
        activity_describe_accumulator, NULL,
        e_marshal_STRING__VOID,
        G_TYPE_STRING, 0);
}

static void
activity_init (EActivity *activity)
{
    activity->priv = E_ACTIVITY_GET_PRIVATE (activity);
}

GType
e_activity_get_type (void)
{
    static GType type = 0;

    if (G_UNLIKELY (type == 0)) {
        static const GTypeInfo type_info = {
            sizeof (EActivityClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) activity_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,  /* class_data */
            sizeof (EActivity),
            0,     /* n_preallocs */
            (GInstanceInitFunc) activity_init,
            NULL   /* value_table */
        };

        type = g_type_register_static (
            G_TYPE_OBJECT, "EActivity", &type_info, 0);
    }

    return type;
}

EActivity *
e_activity_new (const gchar *primary_text)
{
    return g_object_new (
        E_TYPE_ACTIVITY,
        "primary-text", primary_text, NULL);
}

EActivity *
e_activity_newv (const gchar *format, ...)
{
    EActivity *activity;
    gchar *primary_text;
    va_list args;

    va_start (args, format);
    primary_text = g_strdup_vprintf (format, args);
    activity = e_activity_new (primary_text);
    g_free (primary_text);
    va_end (args);

    return activity;
}

void
e_activity_cancel (EActivity *activity)
{
    g_return_if_fail (E_IS_ACTIVITY (activity));

    if (!activity->priv->allow_cancel)
        return;

    if (activity->priv->cancelled)
        return;

    if (activity->priv->completed)
        return;

    g_signal_emit (activity, signals[CANCELLED], 0);
}

void
e_activity_complete (EActivity *activity)
{
    g_return_if_fail (E_IS_ACTIVITY (activity));

    if (activity->priv->cancelled)
        return;

    if (activity->priv->completed)
        return;

    g_signal_emit (activity, signals[COMPLETED], 0);
}

void
e_activity_clicked (EActivity *activity)
{
    g_return_if_fail (E_IS_ACTIVITY (activity));

    g_signal_emit (activity, signals[CLICKED], 0);
}

gchar *
e_activity_describe (EActivity *activity)
{
    EActivityClass *class;

    g_return_val_if_fail (E_IS_ACTIVITY (activity), NULL);

    class = E_ACTIVITY_GET_CLASS (activity);
    g_return_val_if_fail (class->describe != NULL, NULL);

    return class->describe (activity);
}

gboolean
e_activity_is_cancelled (EActivity *activity)
{
    g_return_val_if_fail (E_IS_ACTIVITY (activity), FALSE);

    return activity->priv->cancelled;
}

gboolean
e_activity_is_completed (EActivity *activity)
{
    g_return_val_if_fail (E_IS_ACTIVITY (activity), FALSE);

    return activity->priv->completed;
}

gboolean
e_activity_get_allow_cancel (EActivity *activity)
{
    g_return_val_if_fail (E_IS_ACTIVITY (activity), FALSE);

    return activity->priv->allow_cancel;
}

void
e_activity_set_allow_cancel (EActivity *activity,
                            gboolean allow_cancel)
{
    g_return_if_fail (E_IS_ACTIVITY (activity));

    activity->priv->allow_cancel = allow_cancel;

    g_object_notify (G_OBJECT (activity), "allow-cancel");
}

gboolean
e_activity_get_clickable (EActivity *activity)
{
    g_return_val_if_fail (E_IS_ACTIVITY (activity), FALSE);

    return activity->priv->clickable;
}

void
e_activity_set_clickable (EActivity *activity,
                          gboolean clickable)
{
    g_return_if_fail (E_IS_ACTIVITY (activity));

    activity->priv->clickable = clickable;

    g_object_notify (G_OBJECT (activity), "clickable");
}

const gchar *
e_activity_get_icon_name (EActivity *activity)
{
    g_return_val_if_fail (E_IS_ACTIVITY (activity), NULL);

    return activity->priv->icon_name;
}

void
e_activity_set_icon_name (EActivity *activity,
                          const gchar *icon_name)
{
    g_return_if_fail (E_IS_ACTIVITY (activity));

    g_free (activity->priv->icon_name);
    activity->priv->icon_name = g_strdup (icon_name);

    g_object_notify (G_OBJECT (activity), "icon-name");
}

gdouble
e_activity_get_percent (EActivity *activity)
{
    g_return_val_if_fail (E_IS_ACTIVITY (activity), -1.0);

    return activity->priv->percent;
}

void
e_activity_set_percent (EActivity *activity,
                        gdouble percent)
{
    g_return_if_fail (E_IS_ACTIVITY (activity));

    activity->priv->percent = percent;

    g_object_notify (G_OBJECT (activity), "percent");
}

const gchar *
e_activity_get_primary_text (EActivity *activity)
{
    g_return_val_if_fail (E_IS_ACTIVITY (activity), NULL);

    return activity->priv->primary_text;
}

void
e_activity_set_primary_text (EActivity *activity,
                             const gchar *primary_text)
{
    g_return_if_fail (E_IS_ACTIVITY (activity));

    g_free (activity->priv->primary_text);
    activity->priv->primary_text = g_strdup (primary_text);

    g_object_notify (G_OBJECT (activity), "primary-text");
}

const gchar *
e_activity_get_secondary_text (EActivity *activity)
{
    g_return_val_if_fail (E_IS_ACTIVITY (activity), NULL);

    return activity->priv->secondary_text;
}

void
e_activity_set_secondary_text (EActivity *activity,
                               const gchar *secondary_text)
{
    g_return_if_fail (E_IS_ACTIVITY (activity));

    g_free (activity->priv->secondary_text);
    activity->priv->secondary_text = g_strdup (secondary_text);

    g_object_notify (G_OBJECT (activity), "secondary-text");
}