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602 lines
24 KiB
PHP
602 lines
24 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Moodle renderer used to display special elements of the lesson module
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*
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* @package mod
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* @subpackage lesson
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* @copyright 2009 Sam Hemelryk
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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**/
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defined('MOODLE_INTERNAL') || die();
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class mod_lesson_renderer extends plugin_renderer_base {
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/**
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* Returns the header for the lesson module
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*
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* @param lesson $lesson
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* @param string $currenttab
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* @param bool $extraeditbuttons
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* @param int $lessonpageid
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* @return string
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*/
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public function header($lesson, $cm, $currenttab = '', $extraeditbuttons = false, $lessonpageid = null) {
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global $CFG;
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$activityname = format_string($lesson->name, true, $lesson->course);
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$title = $this->page->course->shortname.": ".$activityname;
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// Build the buttons
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$context = context_module::instance($cm->id);
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/// Header setup
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$this->page->set_title($title);
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$this->page->set_heading($this->page->course->fullname);
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lesson_add_header_buttons($cm, $context, $extraeditbuttons, $lessonpageid);
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$output = $this->output->header();
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if (has_capability('mod/lesson:manage', $context)) {
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$output .= $this->output->heading_with_help($activityname, 'overview', 'lesson');
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if (!empty($currenttab)) {
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ob_start();
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include($CFG->dirroot.'/mod/lesson/tabs.php');
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$output .= ob_get_contents();
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ob_end_clean();
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}
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} else {
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$output .= $this->output->heading($activityname);
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}
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foreach ($lesson->messages as $message) {
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$output .= $this->output->notification($message[0], $message[1], $message[2]);
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}
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return $output;
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}
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/**
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* Returns the footer
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* @return string
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*/
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public function footer() {
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return $this->output->footer();
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}
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/**
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* Returns HTML for a lesson inaccessible message
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*
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* @param string $message
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* @return <type>
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*/
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public function lesson_inaccessible($message) {
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global $CFG;
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$output = $this->output->box_start('generalbox boxaligncenter');
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$output .= $this->output->box_start('center');
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$output .= $message;
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$output .= $this->output->box('<a href="'.$CFG->wwwroot.'/course/view.php?id='. $this->page->course->id .'">'. get_string('returnto', 'lesson', format_string($this->page->course->fullname, true)) .'</a>', 'lessonbutton standardbutton');
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$output .= $this->output->box_end();
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$output .= $this->output->box_end();
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return $output;
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}
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/**
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* Returns HTML to prompt the user to log in
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* @param lesson $lesson
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* @param bool $failedattempt
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* @return string
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*/
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public function login_prompt(lesson $lesson, $failedattempt = false) {
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global $CFG;
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$output = $this->output->box_start('password-form');
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$output .= $this->output->box_start('generalbox boxaligncenter');
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$output .= '<form id="password" method="post" action="'.$CFG->wwwroot.'/mod/lesson/view.php" autocomplete="off">';
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$output .= '<fieldset class="invisiblefieldset center">';
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$output .= '<input type="hidden" name="id" value="'. $this->page->cm->id .'" />';
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if ($failedattempt) {
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$output .= $this->output->notification(get_string('loginfail', 'lesson'));
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}
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$output .= get_string('passwordprotectedlesson', 'lesson', format_string($lesson->name)).'<br /><br />';
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$output .= get_string('enterpassword', 'lesson')." <input type=\"password\" name=\"userpassword\" /><br /><br />";
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$output .= "<div class='lessonbutton standardbutton submitbutton'><input type='submit' value='".get_string('continue', 'lesson')."' /></div>";
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$output .= " <div class='lessonbutton standardbutton submitbutton'><input type='submit' name='backtocourse' value='".get_string('cancel', 'lesson')."' /></div>";
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$output .= '</fieldset></form>';
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$output .= $this->output->box_end();
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$output .= $this->output->box_end();
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return $output;
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}
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/**
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* Returns HTML to display dependancy errors
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*
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* @param object $dependentlesson
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* @param array $errors
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* @return string
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*/
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public function dependancy_errors($dependentlesson, $errors) {
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$output = $this->output->box_start('generalbox boxaligncenter');
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$output .= get_string('completethefollowingconditions', 'lesson', $dependentlesson->name);
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$output .= $this->output->box(implode('<br />'.get_string('and', 'lesson').'<br />', $errors),'center');
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$output .= $this->output->box_end();
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return $output;
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}
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/**
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* Returns HTML to display a message
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* @param string $message
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* @param single_button $button
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* @return string
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*/
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public function message($message, single_button $button = null) {
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$output = $this->output->box_start('generalbox boxaligncenter');
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$output .= $message;
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if ($button !== null) {
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$output .= $this->output->box($this->output->render($button), 'lessonbutton standardbutton');
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}
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$output .= $this->output->box_end();
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return $output;
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}
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/**
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* Returns HTML to display a continue button
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* @param lesson $lesson
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* @param int $lastpageseen
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* @return string
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*/
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public function continue_links(lesson $lesson, $lastpageseenid) {
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global $CFG;
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$output = $this->output->box(get_string('youhaveseen','lesson'), 'generalbox boxaligncenter');
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$output .= $this->output->box_start('center');
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$yeslink = html_writer::link(new moodle_url('/mod/lesson/view.php', array('id'=>$this->page->cm->id, 'pageid'=>$lastpageseenid, 'startlastseen'=>'yes')), get_string('yes'));
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$output .= html_writer::tag('span', $yeslink, array('class'=>'lessonbutton standardbutton'));
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$output .= ' ';
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$nolink = html_writer::link(new moodle_url('/mod/lesson/view.php', array('id'=>$this->page->cm->id, 'pageid'=>$lesson->firstpageid, 'startlastseen'=>'no')), get_string('no'));
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$output .= html_writer::tag('span', $nolink, array('class'=>'lessonbutton standardbutton'));
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$output .= $this->output->box_end();
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return $output;
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}
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/**
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* Returns HTML to display a page to the user
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* @param lesson $lesson
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* @param lesson_page $page
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* @param object $attempt
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* @return string
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*/
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public function display_page(lesson $lesson, lesson_page $page, $attempt) {
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// We need to buffer here as there is an mforms display call
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ob_start();
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echo $page->display($this, $attempt);
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$output = ob_get_contents();
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ob_end_clean();
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return $output;
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}
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/**
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* Returns HTML to display a collapsed edit form
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*
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* @param lesson $lesson
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* @param int $pageid
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* @return string
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*/
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public function display_edit_collapsed(lesson $lesson, $pageid) {
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global $DB, $CFG;
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$manager = lesson_page_type_manager::get($lesson);
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$qtypes = $manager->get_page_type_strings();
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$npages = count($lesson->load_all_pages());
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$table = new html_table();
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$table->head = array(get_string('pagetitle', 'lesson'), get_string('qtype', 'lesson'), get_string('jumps', 'lesson'), get_string('actions', 'lesson'));
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$table->align = array('left', 'left', 'left', 'center');
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$table->wrap = array('', 'nowrap', '', 'nowrap');
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$table->tablealign = 'center';
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$table->cellspacing = 0;
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$table->cellpadding = '2px';
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$table->width = '80%';
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$table->data = array();
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$canedit = has_capability('mod/lesson:edit', context_module::instance($this->page->cm->id));
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while ($pageid != 0) {
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$page = $lesson->load_page($pageid);
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$data = array();
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$data[] = "<a href=\"$CFG->wwwroot/mod/lesson/edit.php?id=".$this->page->cm->id."&mode=single&pageid=".$page->id."\">".format_string($page->title,true).'</a>';
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$data[] = $qtypes[$page->qtype];
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$data[] = implode("<br />\n", $page->jumps);
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if ($canedit) {
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$data[] = $this->page_action_links($page, $npages, true);
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} else {
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$data[] = '';
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}
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$table->data[] = $data;
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$pageid = $page->nextpageid;
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}
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return html_writer::table($table);
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}
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/**
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* Returns HTML to display the full edit page
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*
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* @param lesson $lesson
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* @param int $pageid
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* @param int $prevpageid
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* @param bool $single
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* @return string
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*/
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public function display_edit_full(lesson $lesson, $pageid, $prevpageid, $single=false) {
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global $DB, $CFG;
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$manager = lesson_page_type_manager::get($lesson);
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$qtypes = $manager->get_page_type_strings();
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$npages = count($lesson->load_all_pages());
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$canedit = has_capability('mod/lesson:edit', context_module::instance($this->page->cm->id));
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$content = '';
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if ($canedit) {
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$content = $this->add_page_links($lesson, $prevpageid);
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}
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$options = new stdClass;
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$options->noclean = true;
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while ($pageid != 0 && $single!=='stop') {
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$page = $lesson->load_page($pageid);
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$pagetable = new html_table();
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$pagetable->align = array('right','left');
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$pagetable->width = '100%';
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$pagetable->tablealign = 'center';
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$pagetable->cellspacing = 0;
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$pagetable->cellpadding = '5px';
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$pagetable->data = array();
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$pageheading = new html_table_cell();
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$pageheading->text = format_string($page->title);
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if ($canedit) {
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$pageheading->text .= ' '.$this->page_action_links($page, $npages);
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}
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$pageheading->style = 'text-align:center';
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$pageheading->colspan = 2;
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$pageheading->scope = 'col';
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$pagetable->head = array($pageheading);
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$cell = new html_table_cell();
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$cell->colspan = 2;
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$cell->style = 'text-align:left';
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$cell->text = $page->contents;
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$pagetable->data[] = new html_table_row(array($cell));
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$cell = new html_table_cell();
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$cell->colspan = 2;
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$cell->style = 'text-align:center';
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$cell->text = '<strong>'.$qtypes[$page->qtype] . $page->option_description_string().'</strong>';
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$pagetable->data[] = new html_table_row(array($cell));
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$pagetable = $page->display_answers($pagetable);
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$content .= html_writer::table($pagetable);
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if ($canedit) {
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$content .= $this->add_page_links($lesson, $pageid);
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}
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// check the prev links - fix (silently) if necessary - there was a bug in
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// versions 1 and 2 when add new pages. Not serious then as the backwards
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// links were not used in those versions
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if ($page->prevpageid != $prevpageid) {
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// fix it
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$DB->set_field("lesson_pages", "prevpageid", $prevpageid, array("id" => $page->id));
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debugging("<p>***prevpageid of page $page->id set to $prevpageid***");
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}
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$prevpageid = $page->id;
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$pageid = $page->nextpageid;
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if ($single === true) {
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$single = 'stop';
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}
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}
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return $this->output->box($content, 'edit_pages_box');
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}
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/**
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* Returns HTML to display the add page links
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*
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* @param lesson $lesson
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* @param int $prevpageid
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* @return string
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*/
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public function add_page_links(lesson $lesson, $prevpageid=false) {
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global $CFG;
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$links = array();
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$importquestionsurl = new moodle_url('/mod/lesson/import.php',array('id'=>$this->page->cm->id, 'pageid'=>$prevpageid));
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$links[] = html_writer::link($importquestionsurl, get_string('importquestions', 'lesson'));
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$manager = lesson_page_type_manager::get($lesson);
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foreach($manager->get_add_page_type_links($prevpageid) as $link) {
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$links[] = html_writer::link($link['addurl'], $link['name']);
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}
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$addquestionurl = new moodle_url('/mod/lesson/editpage.php', array('id'=>$this->page->cm->id, 'pageid'=>$prevpageid));
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$links[] = html_writer::link($addquestionurl, get_string('addaquestionpagehere', 'lesson'));
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return $this->output->box(implode(" | \n", $links), 'addlinks');
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}
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/**
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* Return HTML to display add first page links
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* @param lesson $lesson
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* @return string
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*/
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public function add_first_page_links(lesson $lesson) {
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global $CFG;
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$prevpageid = 0;
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$output = $this->output->heading(get_string("whatdofirst", "lesson"), 3);
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$links = array();
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$importquestionsurl = new moodle_url('/mod/lesson/import.php',array('id'=>$this->page->cm->id, 'pageid'=>$prevpageid));
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$links[] = html_writer::link($importquestionsurl, get_string('importquestions', 'lesson'));
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$importppturl = new moodle_url('/mod/lesson/importppt.php',array('id'=>$this->page->cm->id, 'pageid'=>$prevpageid));
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$links[] = html_writer::link($importppturl, get_string('importppt', 'lesson'));
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$manager = lesson_page_type_manager::get($lesson);
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foreach ($manager->get_add_page_type_links($prevpageid) as $link) {
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$link['addurl']->param('firstpage', 1);
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$links[] = html_writer::link($link['addurl'], $link['name']);
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}
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$addquestionurl = new moodle_url('/mod/lesson/editpage.php', array('id'=>$this->page->cm->id, 'pageid'=>$prevpageid, 'firstpage'=>1));
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$links[] = html_writer::link($addquestionurl, get_string('addaquestionpage', 'lesson'));
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return $this->output->box($output.'<p>'.implode('</p><p>', $links).'</p>', 'generalbox firstpageoptions');
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}
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/**
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* Returns HTML to display action links for a page
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*
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* @param lesson_page $page
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* @param bool $printmove
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* @param bool $printaddpage
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* @return string
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*/
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public function page_action_links(lesson_page $page, $printmove, $printaddpage=false) {
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global $CFG;
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$actions = array();
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if ($printmove) {
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$printmovehtml = new moodle_url('/mod/lesson/lesson.php', array('id'=>$this->page->cm->id, 'action'=>'move', 'pageid'=>$page->id, 'sesskey'=>sesskey()));
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$actions[] = html_writer::link($printmovehtml, '<img src="'.$this->output->pix_url('t/move').'" class="iconsmall" alt="'.get_string('move').'" />');
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}
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$url = new moodle_url('/mod/lesson/editpage.php', array('id'=>$this->page->cm->id, 'pageid'=>$page->id, 'edit'=>1));
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$actions[] = html_writer::link($url, '<img src="'.$this->output->pix_url('t/edit').'" class="iconsmall" alt="'.get_string('update').'" />');
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$url = new moodle_url('/mod/lesson/view.php', array('id'=>$this->page->cm->id, 'pageid'=>$page->id));
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$actions[] = html_writer::link($url, '<img src="'.$this->output->pix_url('t/preview').'" class="iconsmall" alt="'.get_string('preview').'" />');
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$url = new moodle_url('/mod/lesson/lesson.php', array('id'=>$this->page->cm->id, 'action'=>'confirmdelete', 'pageid'=>$page->id, 'sesskey'=>sesskey()));
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$actions[] = html_writer::link($url, '<img src="'.$this->output->pix_url('t/delete').'" class="iconsmall" alt="'.get_string('delete').'" />');
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if ($printaddpage) {
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$options = array();
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$manager = lesson_page_type_manager::get($page->lesson);
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$links = $manager->get_add_page_type_links($page->id);
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foreach ($links as $link) {
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$options[$link['type']] = $link['name'];
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}
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$options[0] = get_string('question', 'lesson');
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$addpageurl = new moodle_url('/mod/lesson/editpage.php', array('id'=>$this->page->cm->id, 'pageid'=>$page->id, 'sesskey'=>sesskey()));
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$addpageselect = new single_select($addpageurl, 'qtype', $options, null, array(''=>get_string('addanewpage', 'lesson').'...'), 'addpageafter'.$page->id);
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$addpageselector = $this->output->render($addpageselect);
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}
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if (isset($addpageselector)) {
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$actions[] = $addpageselector;
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}
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return implode(' ', $actions);
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}
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/**
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* Prints the on going message to the user.
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*
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* With custom grading On, displays points
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* earned out of total points possible thus far.
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* With custom grading Off, displays number of correct
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* answers out of total attempted.
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*
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* @param object $lesson The lesson that the user is taking.
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* @return void
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**/
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/**
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* Prints the on going message to the user.
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*
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* With custom grading On, displays points
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* earned out of total points possible thus far.
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* With custom grading Off, displays number of correct
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* answers out of total attempted.
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*
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* @param lesson $lesson
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* @return string
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*/
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public function ongoing_score(lesson $lesson) {
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global $USER, $DB;
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$context = context_module::instance($this->page->cm->id);
|
|
if (has_capability('mod/lesson:manage', $context)) {
|
|
return $this->output->box(get_string('teacherongoingwarning', 'lesson'), "ongoing center");
|
|
} else {
|
|
$ntries = $DB->count_records("lesson_grades", array("lessonid"=>$lesson->id, "userid"=>$USER->id));
|
|
if (isset($USER->modattempts[$lesson->id])) {
|
|
$ntries--;
|
|
}
|
|
$gradeinfo = lesson_grade($lesson, $ntries);
|
|
$a = new stdClass;
|
|
if ($lesson->custom) {
|
|
$a->score = $gradeinfo->earned;
|
|
$a->currenthigh = $gradeinfo->total;
|
|
return $this->output->box(get_string("ongoingcustom", "lesson", $a), "ongoing center");
|
|
} else {
|
|
$a->correct = $gradeinfo->earned;
|
|
$a->viewed = $gradeinfo->attempts;
|
|
return $this->output->box(get_string("ongoingnormal", "lesson", $a), "ongoing center");
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns HTML to display a progress bar of progression through a lesson
|
|
*
|
|
* @param lesson $lesson
|
|
* @return string
|
|
*/
|
|
public function progress_bar(lesson $lesson) {
|
|
global $CFG, $USER, $DB;
|
|
|
|
$context = context_module::instance($this->page->cm->id);
|
|
|
|
// lesson setting to turn progress bar on or off
|
|
if (!$lesson->progressbar) {
|
|
return '';
|
|
}
|
|
|
|
// catch teachers
|
|
if (has_capability('mod/lesson:manage', $context)) {
|
|
return $this->output->notification(get_string('progressbarteacherwarning2', 'lesson'));
|
|
}
|
|
|
|
if (!isset($USER->modattempts[$lesson->id])) {
|
|
// all of the lesson pages
|
|
$pages = $lesson->load_all_pages();
|
|
foreach ($pages as $page) {
|
|
if ($page->prevpageid == 0) {
|
|
$pageid = $page->id; // find the first page id
|
|
break;
|
|
}
|
|
}
|
|
|
|
// current attempt number
|
|
if (!$ntries = $DB->count_records("lesson_grades", array("lessonid"=>$lesson->id, "userid"=>$USER->id))) {
|
|
$ntries = 0; // may not be necessary
|
|
}
|
|
|
|
$viewedpageids = array();
|
|
if ($attempts = $lesson->get_attempts($ntries, false)) {
|
|
foreach($attempts as $attempt) {
|
|
$viewedpageids[$attempt->pageid] = $attempt;
|
|
}
|
|
}
|
|
|
|
$viewedbranches = array();
|
|
// collect all of the branch tables viewed
|
|
if ($branches = $DB->get_records("lesson_branch", array ("lessonid"=>$lesson->id, "userid"=>$USER->id, "retry"=>$ntries), 'timeseen ASC', 'id, pageid')) {
|
|
foreach($branches as $branch) {
|
|
$viewedbranches[$branch->pageid] = $branch;
|
|
}
|
|
$viewedpageids = array_merge($viewedpageids, $viewedbranches);
|
|
}
|
|
|
|
// Filter out the following pages:
|
|
// End of Cluster
|
|
// End of Branch
|
|
// Pages found inside of Clusters
|
|
// Do not filter out Cluster Page(s) because we count a cluster as one.
|
|
// By keeping the cluster page, we get our 1
|
|
$validpages = array();
|
|
while ($pageid != 0) {
|
|
$pageid = $pages[$pageid]->valid_page_and_view($validpages, $viewedpageids);
|
|
}
|
|
|
|
// progress calculation as a percent
|
|
$progress = round(count($viewedpageids)/count($validpages), 2) * 100;
|
|
} else {
|
|
$progress = 100;
|
|
}
|
|
|
|
// print out the Progress Bar. Attempted to put as much as possible in the style sheets.
|
|
$content = '<br />' . html_writer::tag('div', $progress . '%', array('class' => 'progress_bar_completed', 'style' => 'width: '. $progress . '%;'));
|
|
$printprogress = html_writer::tag('div', get_string('progresscompleted', 'lesson', $progress) . $content, array('class' => 'progress_bar'));
|
|
|
|
return $this->output->box($printprogress, 'progress_bar');
|
|
}
|
|
|
|
/**
|
|
* Returns HTML to show the start of a slideshow
|
|
* @param lesson $lesson
|
|
*/
|
|
public function slideshow_start(lesson $lesson) {
|
|
$attributes = array();
|
|
$attributes['class'] = 'slideshow';
|
|
$attributes['style'] = 'background-color:'.$lesson->bgcolor.';height:'.$lesson->height.'px;width:'.$lesson->width.'px;';
|
|
$output = html_writer::start_tag('div', $attributes);
|
|
}
|
|
/**
|
|
* Returns HTML to show the end of a slideshow
|
|
*/
|
|
public function slideshow_end() {
|
|
$output = html_writer::end_tag('div');
|
|
}
|
|
/**
|
|
* Returns a P tag containing contents
|
|
* @param string $contents
|
|
* @param string $class
|
|
*/
|
|
public function paragraph($contents, $class='') {
|
|
$attributes = array();
|
|
if ($class !== '') {
|
|
$attributes['class'] = $class;
|
|
}
|
|
$output = html_writer::tag('p', $contents, $attributes);
|
|
}
|
|
/**
|
|
* Returns HTML to display add_highscores_form
|
|
* @param lesson $lesson
|
|
* @return string
|
|
*/
|
|
public function add_highscores_form(lesson $lesson) {
|
|
global $CFG;
|
|
$output = $this->output->box_start('generalbox boxaligncenter');
|
|
$output .= $this->output->box_start('mdl-align');
|
|
$output .= '<form id="nickname" method ="post" action="'.$CFG->wwwroot.'/mod/lesson/highscores.php" autocomplete="off">
|
|
<input type="hidden" name="id" value="'.$this->page->cm->id.'" />
|
|
<input type="hidden" name="mode" value="save" />
|
|
<input type="hidden" name="sesskey" value="'.sesskey().'" />';
|
|
$output .= get_string("entername", "lesson").": <input type=\"text\" name=\"name\" size=\"7\" maxlength=\"5\" />";
|
|
$output .= $this->output->box("<input type='submit' value='".get_string('submitname', 'lesson')."' />", 'lessonbutton center');
|
|
$output .= "</form>";
|
|
$output .= $this->output->box_end();
|
|
$output .= $this->output->box_end();
|
|
return $output;
|
|
}
|
|
}
|