Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// 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/>.

/**

 * Contains the default section course format output class.

 *

 * @package   core_courseformat

 * @copyright 2020 Ferran Recio <ferran@moodle.com>

 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

namespace core_courseformat\output\local\content;

use context_course;

use core\output\named_templatable;

use core_courseformat\base as course_format;

use core_courseformat\output\local\courseformat_named_templatable;

use renderable;

use renderer_base;

use section_info;

use stdClass;

/**

 * Base class to render a course section.

 *

 * @package   core_courseformat

 * @copyright 2020 Ferran Recio <ferran@moodle.com>

 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

class section implements named_templatable, renderable {

    use courseformat_named_templatable;

    /** @var course_format the course format */

    protected $format;

    /** @var section_info the section info */

    protected $section;

    /** @var section header output class */

    protected $headerclass;

    /** @var cm list output class */

    protected $cmlistclass;

    /** @var section summary output class */

    protected $summaryclass;

    /** @var activities summary output class */

    protected $cmsummaryclass;

    /** @var section control menu output class */

    protected $controlclass;

    /** @var section availability output class */

    protected $availabilityclass;

    /** @var optional move here output class */

    protected $movehereclass;

    /** @var optional visibility output class */

    protected $visibilityclass;

    /** @var bool if the title is hidden for some reason */

    protected $hidetitle = false;

    /** @var bool if the title is hidden for some reason */

    protected $hidecontrols = false;

    /** @var bool if the section is considered stealth */

    protected $isstealth = false;

    /** @var string control menu class. */

    protected $controlmenuclass;

    /**

     * Constructor.

     *

     * @param course_format $format the course format

     * @param section_info $section the section info

     */

    public function __construct(course_format $format, section_info $section) {

        $this->format = $format;

        $this->section = $section;

        if ($section->section > $format->get_last_section_number()) {

            $this->isstealth = true;

        }

        // Load output classes names from format.

        $this->headerclass = $format->get_output_classname('content\\section\\header');

        $this->cmlistclass = $format->get_output_classname('content\\section\\cmlist');

        $this->summaryclass = $format->get_output_classname('content\\section\\summary');

        $this->cmsummaryclass = $format->get_output_classname('content\\section\\cmsummary');

        $this->controlmenuclass = $format->get_output_classname('content\\section\\controlmenu');

        $this->availabilityclass = $format->get_output_classname('content\\section\\availability');

        $this->movehereclass = $format->get_output_classname('content\\section\\movehere');

        $this->visibilityclass = $format->get_output_classname('content\\section\\visibility');

    }

    /**

     * Hide the section title.

     *

     * This is used on blocks or in the home page where an isolated section is displayed.

     */

    public function hide_title(): void {

        $this->hidetitle = true;

    }

    /**

     * Hide the section controls.

     *

     * This is used on blocks or in the home page where an isolated section is displayed.

     */

    public function hide_controls(): void {

        $this->hidecontrols = true;

    }

    /**

     * Export this data so it can be used as the context for a mustache template.

     *

     * @param renderer_base $output typically, the renderer that's calling this function

     * @return stdClass data context for a mustache template

     */

    public function export_for_template(renderer_base $output): stdClass {

        global $USER, $PAGE;

        $format = $this->format;

        $course = $format->get_course();

        $section = $this->section;

        $summary = new $this->summaryclass($format, $section);

        $data = (object)[

            'num' => $section->section ?? '0',

            'id' => $section->id,

            'sectionreturnid' => $format->get_sectionnum(),

            'insertafter' => false,

            'summary' => $summary->export_for_template($output),

            'highlightedlabel' => $format->get_section_highlighted_name(),

            'sitehome' => $course->id == SITEID,

            'editing' => $PAGE->user_is_editing(),

            'displayonesection' => ($course->id != SITEID && !is_null($format->get_sectionid())),

        ];

        $haspartials = [];

        $haspartials['availability'] = $this->add_availability_data($data, $output);

        $haspartials['visibility'] = $this->add_visibility_data($data, $output);

        $haspartials['editor'] = $this->add_editor_data($data, $output);

        $haspartials['header'] = $this->add_header_data($data, $output);

        $haspartials['cm'] = $this->add_cm_data($data, $output);

        $this->add_format_data($data, $haspartials, $output);

        return $data;

    }

    /**

     * Add the section header to the data structure.

     *

     * @param stdClass $data the current cm data reference

     * @param renderer_base $output typically, the renderer that's calling this function

     * @return bool if the cm has name data

     */

    protected function add_header_data(stdClass &$data, renderer_base $output): bool {

        if (!empty($this->hidetitle)) {

            return false;

        }

        $section = $this->section;

        $format = $this->format;

        $header = new $this->headerclass($format, $section);

        $headerdata = $header->export_for_template($output);

        // When a section is displayed alone the title goes over the section, not inside it.

        if ($section->section != 0 && $section->section == $format->get_sectionnum()) {

            $data->singleheader = $headerdata;

        } else {

            $data->header = $headerdata;

        }

        return true;

    }

    /**

     * Add the section cm list to the data structure.

     *

     * @param stdClass $data the current cm data reference

     * @param renderer_base $output typically, the renderer that's calling this function

     * @return bool if the cm has name data

     */

    protected function add_cm_data(stdClass &$data, renderer_base $output): bool {

        $result = false;

        $section = $this->section;

        $format = $this->format;

        $showsummary = ($section->section != 0 &&

            $section->section != $format->get_sectionnum() &&

            $format->get_course_display() == COURSE_DISPLAY_MULTIPAGE &&

            !$format->show_editor()

        );

        $showcmlist = $section->uservisible;

        // Add activities summary if necessary.

        if ($showsummary) {

            $cmsummary = new $this->cmsummaryclass($format, $section);

            $data->cmsummary = $cmsummary->export_for_template($output);

            $data->onlysummary = true;

            $result = true;

            if (!$format->is_section_current($section)) {

                // In multipage, only the current section (and the section zero) has elements.

                $showcmlist = false;

            }

        }

        // Add the cm list.

        if ($showcmlist) {

            $cmlist = new $this->cmlistclass($format, $section);

            $data->cmlist = $cmlist->export_for_template($output);

            $result = true;

        }

        return $result;

    }

    /**

     * Add the section availability to the data structure.

     *

     * @param stdClass $data the current cm data reference

     * @param renderer_base $output typically, the renderer that's calling this function

     * @return bool if the cm has name data

     */

    protected function add_availability_data(stdClass &$data, renderer_base $output): bool {

        $availability = new $this->availabilityclass($this->format, $this->section);

        $data->availability = $availability->export_for_template($output);

        $data->restrictionlock = !empty($this->section->availableinfo);

        $data->hasavailability = $availability->has_availability($output);

        return true;

    }

    /**

     * Add the section vibility information to the data structure.

     *

     * @param stdClass $data the current cm data reference

     * @param renderer_base $output typically, the renderer that's calling this function

     * @return bool if the cm has name data

     */

    protected function add_visibility_data(stdClass &$data, renderer_base $output): bool {

        global $USER;

        $result = false;

        // Check if it is a stealth sections (orphaned).

        if ($this->isstealth) {

            $data->isstealth = true;

            $data->ishidden = true;

            $result = true;

        }

        if (!$this->section->visible) {

            $data->ishidden = true;

            $course = $this->format->get_course();

            $context = context_course::instance($course->id);

            if (has_capability('moodle/course:viewhiddensections', $context, $USER)) {

                $result = true;

            }

        }

        /* @var \core_courseformat\output\local\content\section\visibility $visibility By default the visibility class used

         * here but can be overriden by any course format */

        $visibility = new $this->visibilityclass($this->format, $this->section);

        $data->visibility = $visibility->export_for_template($output);

        return $result;

    }

    /**

     * Add the section editor attributes to the data structure.

     *

     * @param stdClass $data the current cm data reference

     * @param renderer_base $output typically, the renderer that's calling this function

     * @return bool if the cm has name data

     */

    protected function add_editor_data(stdClass &$data, renderer_base $output): bool {

        $course = $this->format->get_course();

        $coursecontext = context_course::instance($course->id);

        $editcaps = [];

        if (has_capability('moodle/course:sectionvisibility', $coursecontext)) {

            $editcaps = ['moodle/course:sectionvisibility'];

        }

        if (!$this->format->show_editor($editcaps)) {

            return false;

        }

        // In a single section page the control menu is located in the page header.

        if (empty($this->hidecontrols) && $this->format->get_sectionid() != $this->section->id) {

            $controlmenu = new $this->controlmenuclass($this->format, $this->section);

            $data->controlmenu = $controlmenu->export_for_template($output);

        }

        if (!$this->isstealth) {

            $data->cmcontrols = $output->course_section_add_cm_control(

                $course,

                $this->section->section,

                $this->format->get_sectionnum()

            );

        }

        return true;

    }

    /**

     * Add the section format attributes to the data structure.

     *

     * @param stdClass $data the current cm data reference

     * @param bool[] $haspartials the result of loading partial data elements

     * @param renderer_base $output typically, the renderer that's calling this function

     * @return bool if the cm has name data

     */

    protected function add_format_data(stdClass &$data, array $haspartials, renderer_base $output): bool {

        $section = $this->section;

        $format = $this->format;

        $data->iscoursedisplaymultipage = ($format->get_course_display() == COURSE_DISPLAY_MULTIPAGE);

        if ($data->num === 0 && !$data->iscoursedisplaymultipage) {

            $data->collapsemenu = true;

        }

        $data->contentcollapsed = $this->is_section_collapsed();

        if ($format->is_section_current($section)) {

            $data->iscurrent = true;

            $data->currentlink = get_accesshide(

                get_string('currentsection', 'format_' . $format->get_format())

            );

        }

        return true;

    }

    /**

     * Returns true if the current section should be shown collapsed.

     *

     * @return bool

     */

    protected function is_section_collapsed(): bool {

        global $PAGE;

        $contentcollapsed = false;

        $preferences = $this->format->get_sections_preferences();

        if (isset($preferences[$this->section->id])) {

            $sectionpreferences = $preferences[$this->section->id];

            if (!empty($sectionpreferences->contentcollapsed)) {

                $contentcollapsed = true;

            }

        }

        // No matter if the user's preference was to collapse the section or not: If the

        // 'expandsection' parameter has been specified, it will be shown uncollapsed.

        $expandsection = $PAGE->url->get_param('expandsection');

        if ($expandsection !== null && $this->section->section == $expandsection) {

            $contentcollapsed = false;

        }

        return $contentcollapsed;

    }

}