source: mainline/uspace/lib/ui/src/msgdialog.c@ c6f23a7

/*
 * SPDX-FileCopyrightText: 2021 Jiri Svoboda
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

/** @addtogroup libui
 * @{
 */
/**
 * @file Message dialog
 */

#include <errno.h>
#include <mem.h>
#include <stdlib.h>
#include <ui/fixed.h>
#include <ui/label.h>
#include <ui/msgdialog.h>
#include <ui/pbutton.h>
#include <ui/resource.h>
#include <ui/ui.h>
#include <ui/window.h>
#include "../private/msgdialog.h"

static void ui_msg_dialog_wnd_close(ui_window_t *, void *);

ui_window_cb_t ui_msg_dialog_wnd_cb = {
        .close = ui_msg_dialog_wnd_close
};

static void ui_msg_dialog_btn_clicked(ui_pbutton_t *, void *);

ui_pbutton_cb_t ui_msg_dialog_btn_cb = {
        .clicked = ui_msg_dialog_btn_clicked
};

/** Initialize message dialog parameters structure.
 *
 * Message dialog parameters structure must always be initialized using
 * this function first.
 *
 * @param params Message dialog parameters structure
 */
void ui_msg_dialog_params_init(ui_msg_dialog_params_t *params)
{
        memset(params, 0, sizeof(ui_msg_dialog_params_t));
}

/** Create new message dialog.
 *
 * @param ui User interface
 * @param params Message dialog parameters
 * @param rdialog Place to store pointer to new dialog
 * @return EOK on success or an error code
 */
errno_t ui_msg_dialog_create(ui_t *ui, ui_msg_dialog_params_t *params,
    ui_msg_dialog_t **rdialog)
{
        errno_t rc;
        ui_msg_dialog_t *dialog;
        ui_window_t *window = NULL;
        ui_wnd_params_t wparams;
        ui_fixed_t *fixed = NULL;
        ui_label_t *label = NULL;
        ui_pbutton_t *bok = NULL;
        gfx_rect_t rect;
        ui_resource_t *ui_res;

        dialog = calloc(1, sizeof(ui_msg_dialog_t));
        if (dialog == NULL) {
                rc = ENOMEM;
                goto error;
        }

        ui_wnd_params_init(&wparams);
        wparams.caption = params->caption;

        /* FIXME: Auto layout */
        if (ui_is_textmode(ui)) {
                wparams.rect.p0.x = 0;
                wparams.rect.p0.y = 0;
                wparams.rect.p1.x = 40;
                wparams.rect.p1.y = 7;
        } else {
                wparams.rect.p0.x = 0;
                wparams.rect.p0.y = 0;
                wparams.rect.p1.x = 200;
                wparams.rect.p1.y = 110;
        }

        rc = ui_window_create(ui, &wparams, &window);
        if (rc != EOK)
                goto error;

        ui_window_set_cb(window, &ui_msg_dialog_wnd_cb, dialog);

        ui_res = ui_window_get_res(window);

        rc = ui_fixed_create(&fixed);
        if (rc != EOK)
                goto error;

        rc = ui_label_create(ui_res, params->text, &label);
        if (rc != EOK)
                goto error;

        /* FIXME: Auto layout */
        if (ui_is_textmode(ui)) {
                rect.p0.x = 3;
                rect.p0.y = 2;
                rect.p1.x = 17;
                rect.p1.y = 3;
        } else {
                rect.p0.x = 10;
                rect.p0.y = 35;
                rect.p1.x = 190;
                rect.p1.y = 50;
        }

        ui_label_set_rect(label, &rect);
        ui_label_set_halign(label, gfx_halign_center);

        rc = ui_fixed_add(fixed, ui_label_ctl(label));
        if (rc != EOK)
                goto error;

        label = NULL;

        rc = ui_pbutton_create(ui_res, "OK", &bok);
        if (rc != EOK)
                goto error;

        ui_pbutton_set_cb(bok, &ui_msg_dialog_btn_cb, dialog);

        /* FIXME: Auto layout */
        if (ui_is_textmode(ui)) {
                rect.p0.x = 8;
                rect.p0.y = 4;
                rect.p1.x = 12;
                rect.p1.y = 5;
        } else {
                rect.p0.x = 55;
                rect.p0.y = 60;
                rect.p1.x = 145;
                rect.p1.y = 88;
        }

        ui_pbutton_set_rect(bok, &rect);

        ui_pbutton_set_default(bok, true);

        rc = ui_fixed_add(fixed, ui_pbutton_ctl(bok));
        if (rc != EOK)
                goto error;

        dialog->bok = bok;
        bok = NULL;

        ui_window_add(window, ui_fixed_ctl(fixed));
        fixed = NULL;

        rc = ui_window_paint(window);
        if (rc != EOK)
                goto error;

        dialog->window = window;
        *rdialog = dialog;
        return EOK;
error:
        if (bok != NULL)
                ui_pbutton_destroy(bok);
        if (label != NULL)
                ui_label_destroy(label);
        if (fixed != NULL)
                ui_fixed_destroy(fixed);
        if (window != NULL)
                ui_window_destroy(window);
        if (dialog != NULL)
                free(dialog);
        return rc;
}

/** Destroy message dialog.
 *
 * @param dialog Message dialog or @c NULL
 */
void ui_msg_dialog_destroy(ui_msg_dialog_t *dialog)
{
        if (dialog == NULL)
                return;

        ui_window_destroy(dialog->window);
        free(dialog);
}

/** Set mesage dialog callback.
 *
 * @param dialog Message dialog
 * @param cb Message dialog callbacks
 * @param arg Callback argument
 */
void ui_msg_dialog_set_cb(ui_msg_dialog_t *dialog, ui_msg_dialog_cb_t *cb,
    void *arg)
{
        dialog->cb = cb;
        dialog->arg = arg;
}

/** Message dialog window close handler.
 *
 * @param window Window
 * @param arg Argument (ui_msg_dialog_t *)
 */
static void ui_msg_dialog_wnd_close(ui_window_t *window, void *arg)
{
        ui_msg_dialog_t *dialog = (ui_msg_dialog_t *) arg;

        if (dialog->cb != NULL && dialog->cb->close != NULL)
                dialog->cb->close(dialog, dialog->arg);
}

/** Message dialog button click handler.
 *
 * @param pbutton Push button
 * @param arg Argument (ui_msg_dialog_t *)
 */
static void ui_msg_dialog_btn_clicked(ui_pbutton_t *pbutton, void *arg)
{
        ui_msg_dialog_t *dialog = (ui_msg_dialog_t *) arg;

        if (dialog->cb != NULL && dialog->cb->button != NULL)
                dialog->cb->button(dialog, dialog->arg, 0);
}

/** @}
 */