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/>.

/**

 * @package    mod

 * @subpackage eduplayer

 * @author     Humanage Srl <info@humanage.it>

 * @copyright  2013 Humanage Srl <info@humanage.it>

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

 */

defined('MOODLE_INTERNAL') || die();

require_once($CFG->libdir.'/filelib.php');

require_once('locallib.php');

////////////////////////////////////////////////////////////////////////////////

// Moodle core API                                                            //

////////////////////////////////////////////////////////////////////////////////

/**

 * Returns the information on whether the module supports a feature

 *

 * @see plugin_supports() in lib/moodlelib.php

 * @param string $feature FEATURE_xx constant for requested feature

 * @return mixed true if the feature is supported, null if unknown

 */

function eduplayer_supports($feature) {

    switch($feature) {

        case FEATURE_MOD_INTRO:               return true;

        case FEATURE_GROUPS:                  return false;

        case FEATURE_GROUPINGS:               return false;

        case FEATURE_GROUPMEMBERSONLY:        return true;

        case FEATURE_COMPLETION_TRACKS_VIEWS: return true;

        case FEATURE_GRADE_HAS_GRADE:         return false;

        case FEATURE_GRADE_OUTCOMES:          return false;

        case FEATURE_BACKUP_MOODLE2:          return true;

        case FEATURE_SHOW_DESCRIPTION:        return true;

        default: return null;

    }

}

/**

 * Saves a new instance of the eduplayer into the database

 *

 * Given an object containing all the necessary data,

 * (defined by the form in mod_form.php) this function

 * will create a new instance and return the id number

 * of the new instance.

 *

 * @param object $eduplayer An object from the form in mod_form.php

 * @param mod_eduplayer_mod_form $mform

 * @return int The id of the newly inserted eduplayer record

 */

function eduplayer_add_instance(stdClass $eduplayer, mod_eduplayer_mod_form $mform = null) {

    global $DB, $CFG;

    $eduplayer->timecreated = time();

    $context = get_context_instance(CONTEXT_MODULE, $eduplayer->coursemodule);

    $fs = get_file_storage();

    if ($eduplayer->urltype == 1) {

        $items = array('file', 'image', 'captionsfile');

    } else {

        $items = array('image', 'captionsfile');

        $eduplayer->eduplayerfile = $eduplayer->linkurl;

    }

    foreach ($items as $value) {

        $file = '';

        $draftitemid = file_get_submitted_draft_itemid($value);

        file_prepare_draft_area($draftitemid, $context->id, 'mod_eduplayer', $value, 0, array('subdirs'=>0));

        file_save_draft_area_files($draftitemid, $context->id, 'mod_eduplayer', $value, 0, array('subdirs'=>0));

        $file = $fs->get_area_files($context->id, 'mod_eduplayer', $value, 0, 'sortorder DESC, id ASC', false); // TODO: this is not very efficient!!

        $file_details = $fs->get_file_by_hash(key($file));

        if( empty( $file ) ){

			$eduplayer->$value = NULL;

			continue;

		}

        if ($value == 'file') {

            $eduplayer->eduplayerfile = $file_details->get_filename();

        } else {

            if (!empty($file)) {

                $eduplayer->$value = $file_details->get_filename();

            } else {

                $eduplayer->$value = NULL;

            }

        }

    }

	$eduplayer->height = normalize_height( $eduplayer );

    $eduplayer = file_postupdate_standard_editor($eduplayer, 'notes', array('subdirs'=>0, 'maxfiles'=>3, 'maxbytes'=>$CFG->maxbytes, 'trusttext'=>true, 'context'=>$context), $context, 'mod_eduplayer', 'notes', 0);

    $eduplayer = file_postupdate_standard_editor($eduplayer, 'sharemailmessage', array('subdirs'=>0, 'maxfiles'=>3, 'maxbytes'=>$CFG->maxbytes, 'trusttext'=>true, 'context'=>$context), $context, 'mod_eduplayer', 'sharemailmessage', 0);

    return $DB->insert_record('eduplayer', $eduplayer);

}

/**

 * Updates an instance of the eduplayer in the database

 *

 * Given an object containing all the necessary data,

 * (defined by the form in mod_form.php) this function

 * will update an existing instance with new data.

 *

 * @param object $eduplayer An object from the form in mod_form.php

 * @param mod_eduplayer_mod_form $mform

 * @return boolean Success/Fail

 */

function eduplayer_update_instance(stdClass $eduplayer, mod_eduplayer_mod_form $mform = null) {

    global $DB, $CFG;

    $eduplayer->timemodified = time();

    $eduplayer->id = $eduplayer->instance;

    //$context = get_context_instance(CONTEXT_MODULE, $eduplayer->coursemodule);

    //Mihir moodle3.2

	$context = context_module::instance($eduplayer->coursemodule);

    $fs = get_file_storage();

    if ($eduplayer->urltype == 1) {

        $items = array('file', 'image', 'captionsfile');

    } else {

        $items = $items = array('image', 'captionsfile');

        $eduplayer->eduplayerfile = $eduplayer->linkurl;

    }

    foreach ($items as $value) {

        $file = '';

        $draftitemid = file_get_submitted_draft_itemid($value);

        file_prepare_draft_area($draftitemid, $context->id, 'mod_eduplayer', $value, 0, array('subdirs'=>0));

        file_save_draft_area_files($draftitemid, $context->id, 'mod_eduplayer', $value, 0, array('subdirs'=>0));

        $file = $fs->get_area_files($context->id, 'mod_eduplayer', $value, 0, 'sortorder DESC, id ASC', false); // TODO: this is not very efficient!!

        if( empty( $file ) ){

			$eduplayer->$value = NULL;

			continue;

		}

		$file_details = $fs->get_file_by_hash(key($file));

        if ($value == 'file') {

            $eduplayer->eduplayerfile = $file_details->get_filename();

        } else {

            if (!empty($file)) {

                $eduplayer->$value = $file_details->get_filename();

            } else {

                $eduplayer->$value = NULL;

            }

        }

    }

	$eduplayer->height = normalize_height( $eduplayer );

	if(!isset($eduplayer->downloadenabled))

		$eduplayer->downloadenabled = 0;

    $eduplayer = file_postupdate_standard_editor($eduplayer, 'notes', array('subdirs'=>0, 'maxfiles'=>3, 'maxbytes'=>$CFG->maxbytes, 'trusttext'=>true, 'context'=>$context), $context, 'mod_eduplayer', 'notes', 0);

    $eduplayer = file_postupdate_standard_editor($eduplayer, 'sharemailmessage', array('subdirs'=>0, 'maxfiles'=>3, 'maxbytes'=>$CFG->maxbytes, 'trusttext'=>true, 'context'=>$context), $context, 'mod_eduplayer', 'sharemailmessage', 0);

    return $DB->update_record('eduplayer', $eduplayer);

}

/**

 * Removes an instance of the eduplayer from the database

 *

 * Given an ID of an instance of this module,

 * this function will permanently delete the instance

 * and any data that depends on it.

 *

 * @param int $id Id of the module instance

 * @return boolean Success/Failure

 */

function eduplayer_delete_instance($id) {

    global $DB;

    if (! $eduplayer = $DB->get_record('eduplayer', array('id' => $id))) {

        return false;

    }

    $DB->delete_records('eduplayer', array('id' => $eduplayer->id));

    return true;

}

/**

 * Returns a small object with summary information about what a

 * user has done with a given particular instance of this module

 * Used for user activity reports.

 * $return->time = the time they did it

 * $return->info = a short text description

 *

 * @return stdClass|null

 */

function eduplayer_user_outline($course, $user, $mod, $eduplayer) {

    $return = new stdClass();

    $return->time = 0;

    $return->info = '';

    return $return;

}

/**

 * Prints a detailed representation of what a user has done with

 * a given particular instance of this module, for user activity reports.

 *

 * @param stdClass $course the current course record

 * @param stdClass $user the record of the user we are generating report for

 * @param cm_info $mod course module info

 * @param stdClass $eduplayer the module instance record

 * @return void, is supposed to echp directly

 */

function eduplayer_user_complete($course, $user, $mod, $eduplayer) {

}

/**

 * Given a course and a time, this module should find recent activity

 * that has occurred in eduplayer activities and print it out.

 * Return true if there was output, or false is there was none.

 *

 * @return boolean

 */

function eduplayer_print_recent_activity($course, $viewfullnames, $timestart) {

    return false;  //  True if anything was printed, otherwise false

}

/**

 * Prepares the recent activity data

 *

 * This callback function is supposed to populate the passed array with

 * custom activity records. These records are then rendered into HTML via

 * {@link eduplayer_print_recent_mod_activity()}.

 *

 * @param array $activities sequentially indexed array of objects with the 'cmid' property

 * @param int $index the index in the $activities to use for the next record

 * @param int $timestart append activity since this time

 * @param int $courseid the id of the course we produce the report for

 * @param int $cmid course module id

 * @param int $userid check for a particular user's activity only, defaults to 0 (all users)

 * @param int $groupid check for a particular group's activity only, defaults to 0 (all groups)

 * @return void adds items into $activities and increases $index

 */

function eduplayer_get_recent_mod_activity(&$activities, &$index, $timestart, $courseid, $cmid, $userid=0, $groupid=0) {

}

/**

 * Prints single activity item prepared by {@see eduplayer_get_recent_mod_activity()}

 * @return void

 */

function eduplayer_print_recent_mod_activity($activity, $courseid, $detail, $modnames, $viewfullnames) {

}

/**

 * Function to be run periodically according to the moodle cron

 * This function searches for things that need to be done, such

 * as sending out mail, toggling flags etc ...

 *

 * @return boolean

 * @todo Finish documenting this function

 **/

function eduplayer_cron () {

    return true;

}

/**

 * Returns all other caps used in the module

 *

 * @example return array('moodle/site:accessallgroups');

 * @return array

 */

function eduplayer_get_extra_capabilities() {

    return array();

}

////////////////////////////////////////////////////////////////////////////////

// Gradebook API                                                              //

////////////////////////////////////////////////////////////////////////////////

/**

 * Is a given scale used by the instance of eduplayer?

 *

 * This function returns if a scale is being used by one eduplayer

 * if it has support for grading and scales. Commented code should be

 * modified if necessary. See forum, glossary or journal modules

 * as reference.

 *

 * @param int $eduplayerid ID of an instance of this module

 * @return bool true if the scale is used by the given eduplayer instance

 */

function eduplayer_scale_used($eduplayerid, $scaleid) {

    global $DB;

    /** @example */

    if ($scaleid and $DB->record_exists('eduplayer', array('id' => $eduplayerid, 'grade' => -$scaleid))) {

        return true;

    } else {

        return false;

    }

}

/**

 * Checks if scale is being used by any instance of eduplayer.

 *

 * This is used to find out if scale used anywhere.

 *

 * @param $scaleid int

 * @return boolean true if the scale is used by any eduplayer instance

 */

function eduplayer_scale_used_anywhere($scaleid) {

    global $DB;

    /** @example */

    if ($scaleid and $DB->record_exists('eduplayer', array('grade' => -$scaleid))) {

        return true;

    } else {

        return false;

    }

}

/**

 * Creates or updates grade item for the give eduplayer instance

 *

 * Needed by grade_update_mod_grades() in lib/gradelib.php

 *

 * @param stdClass $eduplayer instance object with extra cmidnumber and modname property

 * @return void

 */

function eduplayer_grade_item_update(stdClass $eduplayer) {

    global $CFG;

    require_once($CFG->libdir.'/gradelib.php');

    /** @example */

    $item = array();

    $item['itemname'] = clean_param($eduplayer->name, PARAM_NOTAGS);

    $item['gradetype'] = GRADE_TYPE_VALUE;

    $item['grademax']  = $eduplayer->grade;

    $item['grademin']  = 0;

    grade_update('mod/eduplayer', $eduplayer->course, 'mod', 'eduplayer', $eduplayer->id, 0, null, $item);

}

/**

 * Update eduplayer grades in the gradebook

 *

 * Needed by grade_update_mod_grades() in lib/gradelib.php

 *

 * @param stdClass $eduplayer instance object with extra cmidnumber and modname property

 * @param int $userid update grade of specific user only, 0 means all participants

 * @return void

 */

function eduplayer_update_grades(stdClass $eduplayer, $userid = 0) {

    global $CFG, $DB;

    require_once($CFG->libdir.'/gradelib.php');

    /** @example */

    $grades = array(); // populate array of grade objects indexed by userid

    grade_update('mod/eduplayer', $eduplayer->course, 'mod', 'eduplayer', $eduplayer->id, 0, $grades);

}

////////////////////////////////////////////////////////////////////////////////

// File API                                                                   //

////////////////////////////////////////////////////////////////////////////////

/**

 * Returns the lists of all browsable file areas within the given module context

 *

 * The file area 'intro' for the activity introduction field is added automatically

 * by {@link file_browser::get_file_info_context_module()}

 *

 * @param stdClass $course

 * @param stdClass $cm

 * @param stdClass $context

 * @return array of [(string)filearea] => (string)description

 */

function eduplayer_get_file_areas($course, $cm, $context) {

    $areas = array('file', 'notes', 'image', 'captionsfile');

    $areas['file'] = get_string('eduplayerfile', 'eduplayer');

    $areas['notes'] = get_string('notes', 'eduplayer');

    $areas['image'] = get_string('image', 'eduplayer');

    $areas['captionsfile'] = get_string('captionsfile', 'eduplayer');

    return $areas;

}

/**

 * File browsing support for eduplayer file areas

 *

 * @package mod_eduplayer

 * @category files

 *

 * @param file_browser $browser

 * @param array $areas

 * @param stdClass $course

 * @param stdClass $cm

 * @param stdClass $context

 * @param string $filearea

 * @param int $itemid

 * @param string $filepath

 * @param string $filename

 * @return file_info instance or null if not found

 */

function eduplayer_get_file_info($browser, $areas, $course, $cm, $context, $filearea, $itemid, $filepath, $filename) {

    global $CFG;

    if (!has_capability('moodle/course:managefiles', $context)) {

        // students can not peak here!

        return null;

    }

    $fs = get_file_storage();

    if ($filearea == 'file' || $filearea == 'notes' || $filearea == 'image' || $filearea == 'captionsfile') {

        $filepath = is_null($filepath) ? '/' : $filepath;

        $filename = is_null($filename) ? '.' : $filename;

        $urlbase = $CFG->wwwroot.'/pluginfile.php';

        if (!$storedfile = $fs->get_file($context->id, 'mod_eduplayer', $filearea, 0, $filepath, $filename)) {

            if ($filepath === '/' and $filename === '.') {

                $storedfile = new virtual_root_file($context->id, 'mod_eduplayer', $filearea, 0);

            } else {

                // not found

                return null;

            }

        }

        return new eduplayer_content_file_info($browser, $context, $storedfile, $urlbase, $areas[$filearea], true, true, true, false);

    }

    // note: resource_intro handled in file_browser automatically

    return null;

}

/**

 * Serves the files from the eduplayer file areas

 *

 * @package mod_eduplayer

 * @category files

 *

 * @param stdClass $course the course object

 * @param stdClass $cm the course module object

 * @param stdClass $context the eduplayer's context

 * @param string $filearea the name of the file area

 * @param array $args extra arguments (itemid, path)

 * @param bool $forcedownload whether or not force download

 * @param array $options additional options affecting the file serving

 */

function eduplayer_pluginfile($course, $cm, $context, $filearea, array $args, $forcedownload, array $options=array()) {

    global $DB, $CFG;

    if ($context->contextlevel != CONTEXT_MODULE) {

        send_file_not_found();

    }

    require_course_login($course, true, $cm);

    if (($filearea == 'notes') || ($filearea == 'file') || ($filearea == 'image') || ($filearea == 'captionsfile')) {

        #OK Continue..

    } else {

        return false;

    }

    $fileid = (int)array_shift($args);

    $fs = get_file_storage();

    $relativepath = implode('/', $args);

	//$fullpath = "/$context->id/mod_eduplayer/$filearea/$fileid/$relativepath";

    $fullpath = "/$context->id/mod_eduplayer/$filearea/0/$relativepath";

    if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->is_directory() ) {

        return false;

    }

    send_stored_file($file, 360, 0, $forcedownload);

}

/**

 * File browsing support class

 */

class eduplayer_content_file_info extends file_info_stored {

    public function get_parent() {

        if ($this->lf->get_filepath() === '/' and $this->lf->get_filename() === '.') {

            return $this->browser->get_file_info($this->context);

        }

        return parent::get_parent();

    }

    public function get_visible_name() {

        if ($this->lf->get_filepath() === '/' and $this->lf->get_filename() === '.') {

            return $this->topvisiblename;

        }

        return parent::get_visible_name();

    }

}

////////////////////////////////////////////////////////////////////////////////

// Navigation API                                                             //

////////////////////////////////////////////////////////////////////////////////

/**

 * Extends the global navigation tree by adding eduplayer nodes if there is a relevant content

 *

 * This can be called by an AJAX request so do not rely on $PAGE as it might not be set up properly.

 *

 * @param navigation_node $navref An object representing the navigation tree node of the eduplayer module instance

 * @param stdClass $course

 * @param stdClass $module

 * @param cm_info $cm

 */

function eduplayer_extend_navigation(navigation_node $navref, stdclass $course, stdclass $module, cm_info $cm) {

}

/**

 * Extends the settings navigation with the eduplayer settings

 *

 * This function is called when the context for the page is a eduplayer module. This is not called by AJAX

 * so it is safe to rely on the $PAGE.

 *

 * @param settings_navigation $settingsnav {@link settings_navigation}

 * @param navigation_node $eduplayernode {@link navigation_node}

 */

function eduplayer_extend_settings_navigation(settings_navigation $settingsnav, navigation_node $eduplayernode=null) {

}

/**

* Construct Javascript SWFObject embed code for <body> section of view.php

* Please note: some URLs append a '?'.time(); query to prevent browser caching

*

* @param $eduplayer (mdl_mplayer DB record for current mplayer module instance)

* @return string

*/

function eduplayer_video($eduplayer) {

    global $CFG, $COURSE, $CFG;

    $cm = get_coursemodule_from_instance('eduplayer', $eduplayer->id, $COURSE->id);

    //$context = get_context_instance(CONTEXT_MODULE, $cm->id);

	$context = context_module::instance($cm->id); //Moodle 3.2 Mihir

    $video = eduplayer_player_helper($eduplayer, $cm, $context);

	//Notes

    $eduplayer->notes = file_rewrite_pluginfile_urls($eduplayer->notes, 'pluginfile.php', $context->id, 'mod_eduplayer', 'notes', 0);

    $video .= html_writer::tag('div', $eduplayer->notes, array('id' => 'videoNotes'));

	//If eduplayer type is audio and has no image poster set overflow to every container

	if( $eduplayer->type=='audio' && ( $eduplayer->image == '' || is_null( $eduplayer->image ) ) )

		$video .= html_writer::tag('style', '.jwplayer{height: 120px !important;} object{outline: none;}');

		// $video .= html_writer::tag('style', '#page-content, #region-main-box, #region-main-wrap, #region-main, .region-content{overflow: visible !important;}');

	return $video;

}

/*

 * Enabled video extensions

 */

function eduplayer_video_extensions() {

    $extensions = array(

        '.mp4',

        '.flv',

        '.webm',

        '.MP4',

        '.FLV',

        '.WEBM'

    );

    return $extensions;

}

/*

 * Enabled image extensions

 */

function eduplayer_image_extensions() {

    $extensions = array(

        '.jpg',

        '.jpeg',

        '.png',

        '.JPG',

        '.JPEG',

        '.PNG'

    );

    return $extensions;

}

/*

 * Enabled captions extensions

 */

function eduplayer_captions_extensions() {

    $extensions = array(

        '.vtt',

        '.srt',

        '.VTT',

        '.SRT'

    );

    return $extensions;

}

/*

 * Enabled audio extensions

 */

function eduplayer_audio_extensions() {

    $extensions = array(

        '.mp3',

		'.m4a'

    );

    return $extensions;

}

/*

* Normalize height for audio format

* If is audio force the height to 35 px only if poster is empty

*/

function normalize_height( $eduplayer ){

	if( $eduplayer->type === 'audio' && ( is_null( $eduplayer->image ) || $eduplayer->image=='') ){

		$eduplayer->height = '35';

	}else if( $eduplayer->type === 'audio' && $eduplayer->image!='' && $eduplayer->height < '360' ){

		$eduplayer->height = '360';

	}

	return $eduplayer->height;

}

/*

* Return

* 'true' if you want show the logo

* 'false' if you don't ant ot

*/

function showlogo(){

	return 'false';

}