NetworkManager/clients/tui/newt/nmt-newt-button.c

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2013 Red Hat, Inc.
 */

/**
 * SECTION:nmt-newt-button
 * @short_description: Push buttons
 *
 * #NmtNewtButton implements a button widget.
 */

#include "nm-default.h"

#include "nmt-newt-button.h"
#include "nmt-newt-utils.h"

G_DEFINE_TYPE(NmtNewtButton, nmt_newt_button, NMT_TYPE_NEWT_COMPONENT)

#define NMT_NEWT_BUTTON_GET_PRIVATE(o) \
    (G_TYPE_INSTANCE_GET_PRIVATE((o), NMT_TYPE_NEWT_BUTTON, NmtNewtButtonPrivate))

typedef struct {
    char *label;
} NmtNewtButtonPrivate;

enum {
    PROP_0,
    PROP_LABEL,

    LAST_PROP
};

enum {
    CLICKED,

    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = {0};

/**
 * nmt_newt_button_new:
 * @label: the (initial) button label
 *
 * Creates a new button.
 *
 * Returns: a new #NmtNewtButton
 */
NmtNewtWidget *
nmt_newt_button_new(const char *label)
{
    return g_object_new(NMT_TYPE_NEWT_BUTTON, "label", label, NULL);
}

/**
 * nmt_newt_button_set_label:
 * @button: an #NmtNewtButton
 * @label: the new label
 *
 * Updates @button's label.
 */
void
nmt_newt_button_set_label(NmtNewtButton *button, const char *label)
{
    NmtNewtButtonPrivate *priv = NMT_NEWT_BUTTON_GET_PRIVATE(button);

    if (!g_strcmp0(priv->label, label))
        return;

    g_free(priv->label);
    priv->label = g_strdup(label);
    nmt_newt_widget_needs_rebuild(NMT_NEWT_WIDGET(button));
}

/**
 * nmt_newt_button_get_label:
 * @button: an #NmtNewtButton
 *
 * Gets @button's label.
 *
 * Returns: @button's label.
 */
const char *
nmt_newt_button_get_label(NmtNewtButton *button)
{
    NmtNewtButtonPrivate *priv = NMT_NEWT_BUTTON_GET_PRIVATE(button);

    return priv->label;
}

static void
nmt_newt_button_init(NmtNewtButton *button)
{}

static void
nmt_newt_button_finalize(GObject *object)
{
    NmtNewtButtonPrivate *priv = NMT_NEWT_BUTTON_GET_PRIVATE(object);

    g_free(priv->label);

    G_OBJECT_CLASS(nmt_newt_button_parent_class)->finalize(object);
}

static newtComponent
nmt_newt_button_build_component(NmtNewtComponent *component, gboolean sensitive)
{
    NmtNewtButtonPrivate *priv = NMT_NEWT_BUTTON_GET_PRIVATE(component);
    newtComponent         co;
    char *                label = NULL, *label_lc;

    if (sensitive) {
        label_lc = nmt_newt_locale_from_utf8(priv->label);
        co       = newtCompactButton(-1, -1, label_lc);
        g_free(label_lc);
    } else {
        label    = g_strdup_printf(" <%s>", priv->label);
        label_lc = nmt_newt_locale_from_utf8(label);
        co       = newtLabel(-1, -1, label_lc);
        g_free(label_lc);
        newtLabelSetColors(co, NMT_NEWT_COLORSET_DISABLED_BUTTON);
    }

    return co;
}

static void
nmt_newt_button_size_request(NmtNewtWidget *widget, int *width, int *height)
{
    NMT_NEWT_WIDGET_CLASS(nmt_newt_button_parent_class)->size_request(widget, width, height);

    /* remove the automatically-added left padding */
    (*width)--;
}

static void
nmt_newt_button_size_allocate(NmtNewtWidget *widget, int x, int y, int width, int height)
{
    /* account for the automatically-added left padding */
    x--;
    width++;

    NMT_NEWT_WIDGET_CLASS(nmt_newt_button_parent_class)->size_allocate(widget, x, y, width, height);
}

static void
nmt_newt_button_activated(NmtNewtWidget *widget)
{
    g_signal_emit(widget, signals[CLICKED], 0);

    NMT_NEWT_WIDGET_CLASS(nmt_newt_button_parent_class)->activated(widget);
}

static void
nmt_newt_button_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
    switch (prop_id) {
    case PROP_LABEL:
        nmt_newt_button_set_label(NMT_NEWT_BUTTON(object), g_value_get_string(value));
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

static void
nmt_newt_button_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
    NmtNewtButtonPrivate *priv = NMT_NEWT_BUTTON_GET_PRIVATE(object);

    switch (prop_id) {
    case PROP_LABEL:
        g_value_set_string(value, priv->label);
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

static void
nmt_newt_button_class_init(NmtNewtButtonClass *button_class)
{
    GObjectClass *         object_class    = G_OBJECT_CLASS(button_class);
    NmtNewtComponentClass *component_class = NMT_NEWT_COMPONENT_CLASS(button_class);
    NmtNewtWidgetClass *   widget_class    = NMT_NEWT_WIDGET_CLASS(button_class);

    g_type_class_add_private(button_class, sizeof(NmtNewtButtonPrivate));

    /* virtual methods */
    object_class->set_property = nmt_newt_button_set_property;
    object_class->get_property = nmt_newt_button_get_property;
    object_class->finalize     = nmt_newt_button_finalize;

    widget_class->size_request  = nmt_newt_button_size_request;
    widget_class->size_allocate = nmt_newt_button_size_allocate;
    widget_class->activated     = nmt_newt_button_activated;

    component_class->build_component = nmt_newt_button_build_component;

    /* signals */

    /**
     * NmtNewtButton::clicked:
     * @button: the #NmtNewtButton
     *
     * Emitted when the button is clicked.
     */
    signals[CLICKED] = g_signal_new("clicked",
                                    G_OBJECT_CLASS_TYPE(object_class),
                                    G_SIGNAL_RUN_FIRST,
                                    0,
                                    NULL,
                                    NULL,
                                    NULL,
                                    G_TYPE_NONE,
                                    0);

    /* properties */

    /**
     * NmtNewtButton:label:
     *
     * The button's label
     */
    g_object_class_install_property(
        object_class,
        PROP_LABEL,
        g_param_spec_string("label", "", "", NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}