mod_form.php

<?php
// This file is part of the EQUELLA module - http://git.io/vUuof
//
// Moodle 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.
//
// Moodle 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 Moodle. If not, see <http://www.gnu.org/licenses/>.
defined('MOODLE_INTERNAL') || die();
require_once ($CFG->dirroot . '/config.php');
require_once ($CFG->dirroot . '/course/moodleform_mod.php');
require_once ($CFG->libdir . '/resourcelib.php');
require_once ('lib.php');
require_once ('locallib.php');
class mod_equella_mod_form extends moodleform_mod {
    var $form;

    private function is_adding_equella_resource() {
        return isset($this->form->add);
    }

    function definition() {
        global $CFG;
        $mform = & $this->_form;
        if ($this->is_adding_equella_resource()) {
            return;
        }

        $mform->addElement('header', 'general', get_string('general', 'form'));

        $mform->addElement('text', 'name', get_string('name'), array('size' => '48'));
        $mform->setType('name', PARAM_TEXT);
        $mform->addRule('name', null, 'required', null, 'client');

        if(method_exists($this, 'standard_intro_elements')) {
            $this->standard_intro_elements();
        } else {
            $this->add_intro_editor();
        }

        $mform->addElement('text', 'url', get_string('location'), array('size' => '80'));
        $mform->setType('url', PARAM_URL);

        $mform->addElement('hidden', 'activation', '');
        $mform->setType('activation', PARAM_TEXT);

        $mform->addElement('header', 'optionssection', get_string('option.pagewindow.header', 'equella'));

        $woptions = array(0 => get_string('option.pagewindow.same', 'equella'),1 => get_string('option.pagewindow.new', 'equella'));
        $mform->addElement('select', 'windowpopup', get_string('option.pagewindow', 'equella'), $woptions);
        $mform->setDefault('windowpopup', !empty($CFG->resource_popup));

        foreach(equella_get_window_options() as $option => $value) {
            $label = get_string('option.popup.' . $option, 'equella');
            if ($option == 'height' or $option == 'width') {
                $mform->addElement('text', $option, $label, array('size' => '4'));
                $mform->setType($option, PARAM_INT);
            } else {
                $mform->addElement('checkbox', $option, $label);
            }

            if (isset($CFG->{"resource_popup" . $option})) {
                $mform->setDefault($option, $CFG->{"resource_popup" . $option});
            }
            $mform->disabledIf($option, 'windowpopup', 'eq', 0);
            $mform->setAdvanced($option);
        }

        $this->standard_coursemodule_elements();
        $this->add_action_buttons();
    }
    function set_data($data) {
        $this->form = $data;
        parent::set_data($data);
    }
    function data_preprocessing(&$defaults) {
        if (!isset($defaults['popup'])) {
            // use form defaults
        } else if (!empty($defaults['popup'])) {
            $defaults['windowpopup'] = 1;
            if (array_key_exists('popup', $defaults)) {
                $rawoptions = explode(',', $defaults['popup']);
                foreach($rawoptions as $rawoption) {
                    $option = explode('=', trim($rawoption));
                    $defaults[$option[0]] = $option[1];
                }
            }
        }
    }
    function display() {
        global $CFG, $USER;
        $form = $this->form;
        if ($this->is_adding_equella_resource()) {
            $args = new stdClass();
            $args->course = $form->course;
            $args->section = $form->section;
            $args->cmid = $form->coursemodule;
            $args->module = $form->module;
            $args->modulename = $form->modulename;
            $args->instance = $form->instance;

            echo equella_select_dialog($args);

            // XXX https://github.com/equella/moodle-mod_equella/issues/28
            // This is a hack to make moodle believes certain html element exists.
            // When conditional access is enabled, moodle expects id_availabilityconditionsjson field
            // in standard module form, as we don't use standard form.
            echo html_writer::start_tag('form', array('style'=>'display:none'));
            echo html_writer::empty_tag('input', array('id'=>'id_availabilityconditionsjson', 'type'=>'hidden'));
            echo html_writer::end_tag('form');
        } else {
            parent::display();
        }
    }
}