比较文本

查找两个文本文件之间的差异

Real-time diff

Unified diff

Collapse lines

Highlight change

Syntax highlighting

工具

Diffchecker Desktop The most secure way to run Diffchecker. Get the Diffchecker Desktop app: your diffs never leave your computer!Get Desktop

Comparing sensitive data, confidential files or internal emails?

Most legal and privacy policies prohibit uploading sensitive data online. Diffchecker Desktop ensures your confidential information never leaves your computer. Work offline and compare documents securely.

Download Diffchecker Desktop Learn more

Untitled diff

Created 10 years agoDiff never expires

56 removals

641 lines

70 additions

654 lines

<?php

//Original Moodle 2.7.2 /mod/quiz/renderer.php

//Modified Moodle 2.7.2 /mod/quiz/renderer.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/>.

/**

* Defines the renderer for the quiz module.

* @package mod_quiz

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

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

/**

* The renderer for the quiz module.

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

class mod_quiz_renderer extends plugin_renderer_base {

/**

* Builds the review page

* @param quiz_attempt $attemptobj an instance of quiz_attempt.

* @param array $slots an array of intgers relating to questions.

* @param int $page the current page number

* @param bool $showall whether to show entire attempt on one page.

* @param bool $lastpage if true the current page is the last page.

* @param mod_quiz_display_options $displayoptions instance of mod_quiz_display_options.

* @param array $summarydata contains all table data

* @return $output containing html data.

public function review_page(quiz_attempt $attemptobj, $slots, $page, $showall,

$lastpage, mod_quiz_display_options $displayoptions,

$summarydata) {

$output = '';

$output .= $this->header();

$output .= $this->review_summary_table($summarydata, $page);

$output .= $this->review_form($page, $showall, $displayoptions,

$this->questions($attemptobj, true, $slots, $page, $showall, $displayoptions),

$attemptobj);

$output .= $this->review_next_navigation($attemptobj, $page, $lastpage);

$output .= $this->footer();

return $output;

}

/**

* Renders the review question pop-up.

* @param quiz_attempt $attemptobj an instance of quiz_attempt.

* @param int $slot which question to display.

* @param int $seq which step of the question attempt to show. null = latest.

* @param mod_quiz_display_options $displayoptions instance of mod_quiz_display_options.

* @param array $summarydata contains all table data

* @return $output containing html data.

public function review_question_page(quiz_attempt $attemptobj, $slot, $seq,

mod_quiz_display_options $displayoptions, $summarydata) {

$output = '';

$output .= $this->header();

$output .= $this->review_summary_table($summarydata, 0);

if (!is_null($seq)) {

$output .= $attemptobj->render_question_at_step($slot, $seq, true);

} else {

$output .= $attemptobj->render_question($slot, true);

}

$output .= $this->close_window_button();

$output .= $this->footer();

return $output;

}

/**

* Renders the review question pop-up.

* @param string $message Why the review is not allowed.

* @return string html to output.

public function review_question_not_allowed($message) {

$output = '';

$output .= $this->header();

$output .= $this->heading(format_string($attemptobj->get_quiz_name(), true,

array("context" => $attemptobj->get_quizobj()->get_context())));

$output .= $this->notification($message);

$output .= $this->close_window_button();

$output .= $this->footer();

return $output;

}

/**

* Filters the summarydata array.

* @param array $summarydata contains row data for table

* @param int $page the current page number

* @return $summarydata containing filtered row data

protected function filter_review_summary_table($summarydata, $page) {

if ($page == 0) {

return $summarydata;

}

// Only show some of summary table on subsequent pages.

foreach ($summarydata as $key => $rowdata) {

if (!in_array($key, array('user', 'attemptlist'))) {

unset($summarydata[$key]);

}

return $summarydata;

}

/**

* Outputs the table containing data from summary data array

* @param array $summarydata contains row data for table

* @param int $page contains the current page number

public function review_summary_table($summarydata, $page) {

$summarydata = $this->filter_review_summary_table($summarydata, $page);

if (empty($summarydata)) {

return '';

}

$output = '';

$output .= html_writer::start_tag('table', array(

'class' => 'generaltable generalbox quizreviewsummary'));

$output .= html_writer::start_tag('tbody');

foreach ($summarydata as $rowdata) {

if ($rowdata['title'] instanceof renderable) {

$title = $this->render($rowdata['title']);

} else {

$title = $rowdata['title'];

}

if ($rowdata['content'] instanceof renderable) {

$content = $this->render($rowdata['content']);

} else {

$content = $rowdata['content'];

}

$output .= html_writer::tag('tr',

html_writer::tag('th', $title, array('class' => 'cell', 'scope' => 'row')) .

html_writer::tag('td', $content, array('class' => 'cell'))

);

}

$output .= html_writer::end_tag('tbody');

$output .= html_writer::end_tag('table');

return $output;

}

/**

* Renders each question

* @param quiz_attempt $attemptobj instance of quiz_attempt

* @param bool $reviewing

* @param array $slots array of intgers relating to questions

* @param int $page current page number

* @param bool $showall if true shows attempt on single page

* @param mod_quiz_display_options $displayoptions instance of mod_quiz_display_options

public function questions(quiz_attempt $attemptobj, $reviewing, $slots, $page, $showall,

mod_quiz_display_options $displayoptions) {

$output = '';

foreach ($slots as $slot) {

$output .= $attemptobj->render_question($slot, $reviewing,

$attemptobj->review_url($slot, $page, $showall));

}

return $output;

}

/**

* Renders the main bit of the review page.

* @param array $summarydata contain row data for table

* @param int $page current page number

* @param mod_quiz_display_options $displayoptions instance of mod_quiz_display_options

* @param $content contains each question

* @param quiz_attempt $attemptobj instance of quiz_attempt

* @param bool $showall if true display attempt on one page

public function review_form($page, $showall, $displayoptions, $content, $attemptobj) {

if ($displayoptions->flags != question_display_options::EDITABLE) {

return $content;

}

$this->page->requires->js_init_call('M.mod_quiz.init_review_form', null, false,

quiz_get_js_module());

$output = '';

$output .= html_writer::start_tag('form', array('action' => $attemptobj->review_url(null,

$page, $showall), 'method' => 'post', 'class' => 'questionflagsaveform'));

$output .= html_writer::start_tag('div');

$output .= $content;

$output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey',

'value' => sesskey()));

$output .= html_writer::start_tag('div', array('class' => 'submitbtns'));

$output .= html_writer::empty_tag('input', array('type' => 'submit',

'class' => 'questionflagsavebutton', 'name' => 'savingflags',

'value' => get_string('saveflags', 'question')));

$output .= html_writer::end_tag('div');

$output .= html_writer::end_tag('form');

return $output;

}

/**

* Returns either a liink or button

* @param quiz_attempt $attemptobj instance of quiz_attempt

public function finish_review_link(quiz_attempt $attemptobj) {

$url = $attemptobj->view_url();

if ($attemptobj->get_access_manager(time())->attempt_must_be_in_popup()) {

$this->page->requires->js_init_call('M.mod_quiz.secure_window.init_close_button',

array($url), quiz_get_js_module());

return html_writer::empty_tag('input', array('type' => 'button',

'value' => get_string('finishreview', 'quiz'),

'id' => 'secureclosebutton'));

} else {

return html_writer::link($url, get_string('finishreview', 'quiz'));

}

/**

* Creates a next page arrow or the finishing link

* @param quiz_attempt $attemptobj instance of quiz_attempt

* @param int $page the current page

* @param bool $lastpage if true current page is the last page

public function review_next_navigation(quiz_attempt $attemptobj, $page, $lastpage) {

if ($lastpage) {

$nav = $this->finish_review_link($attemptobj);

} else {

$nav = link_arrow_right(get_string('next'), $attemptobj->review_url(null, $page + 1));

}

return html_writer::tag('div', $nav, array('class' => 'submitbtns'));

}

/**

* Return the HTML of the quiz timer.

* @return string HTML content.

public function countdown_timer(quiz_attempt $attemptobj, $timenow) {

$timeleft = $attemptobj->get_time_left_display($timenow);

if ($timeleft !== false) {

$ispreview = $attemptobj->is_preview();

$timerstartvalue = $timeleft;

if (!$ispreview) {

// Make sure the timer starts just above zero. If $timeleft was <= 0, then

// this will just have the effect of causing the quiz to be submitted immediately.

$timerstartvalue = max($timerstartvalue, 1);

}

$this->initialise_timer($timerstartvalue, $ispreview);

}

return html_writer::tag('div', get_string('timeleft', 'quiz') . ' ' .

html_writer::tag('span', '', array('id' => 'quiz-time-left')),

array('id' => 'quiz-timer', 'role' => 'timer',

'aria-atomic' => 'true', 'aria-relevant' => 'text'));

}

/**

* Create a preview link

* @param $url contains a url to the given page

public function restart_preview_button($url) {

return $this->single_button($url, get_string('startnewpreview', 'quiz'));

}

/**

* Outputs the navigation block panel

* @param quiz_nav_panel_base $panel instance of quiz_nav_panel_base

public function navigation_panel(quiz_nav_panel_base $panel) {

$output = '';

$userpicture = $panel->user_picture();

if ($userpicture) {

$fullname = fullname($userpicture->user);

if ($userpicture->size === true) {

$fullname = html_writer::div($fullname);

}

$output .= html_writer::tag('div', $this->render($userpicture) . $fullname,

array('id' => 'user-picture', 'class' => 'clearfix'));

}

$output .= $panel->render_before_button_bits($this);

$bcc = $panel->get_button_container_class();

$output .= html_writer::start_tag('div', array('class' => "qn_buttons $bcc"));

foreach ($panel->get_question_buttons() as $button) {

$output .= $this->render($button);

}

$output .= html_writer::end_tag('div');

$output .= html_writer::tag('div', $panel->render_end_bits($this),

array('class' => 'othernav'));

$this->page->requires->js_init_call('M.mod_quiz.nav.init', null, false,

quiz_get_js_module());

return $output;

}

/**

* Returns the quizzes navigation button

* @param quiz_nav_question_button $button

protected function render_quiz_nav_question_button(quiz_nav_question_button $button) {

$classes = array('qnbutton', $button->stateclass, $button->navmethod);

$attributes = array();

if ($button->currentpage) {

$classes[] = 'thispage';

$attributes[] = get_string('onthispage', 'quiz');

}

// Flagged?

if ($button->flagged) {

$classes[] = 'flagged';

$flaglabel = get_string('flagged', 'question');

} else {

$flaglabel = '';

}

$attributes[] = html_writer::tag('span', $flaglabel, array('class' => 'flagstate'));

if (is_numeric($button->number)) {

$qnostring = 'questionnonav';

} else {

$qnostring = 'questionnonavinfo';

}

$a = new stdClass();

$a->number = $button->number;

$a->attributes = implode(' ', $attributes);

$tagcontents = html_writer::tag('span', '', array('class' => 'thispageholder')) .

html_writer::tag('span', '', array('class' => 'trafficlight')) .

get_string($qnostring, 'quiz', $a);

$tagattributes = array('class' => implode(' ', $classes), 'id' => $button->id,

'title' => $button->statestring);

if ($button->url) {

return html_writer::link($button->url, $tagcontents, $tagattributes);

} else {

return html_writer::tag('span', $tagcontents, $tagattributes);

}

/**

* outputs the link the other attempts.

* @param mod_quiz_links_to_other_attempts $links

protected function render_mod_quiz_links_to_other_attempts(

mod_quiz_links_to_other_attempts $links) {

$attemptlinks = array();

foreach ($links->links as $attempt => $url) {

if ($url) {

$attemptlinks[] = html_writer::link($url, $attempt);

} else {

$attemptlinks[] = html_writer::tag('strong', $attempt);

}

return implode(', ', $attemptlinks);

}

public function start_attempt_page(quiz $quizobj, mod_quiz_preflight_check_form $mform) {

$output = '';

$output .= $this->header();

$output .= $this->heading(format_string($quizobj->get_quiz_name(), true,

array("context" => $quizobj->get_context())));

$output .= $this->quiz_intro($quizobj->get_quiz(), $quizobj->get_cm());

ob_start();

$mform->display();

$output .= ob_get_clean();

$output .= $this->footer();

return $output;

}

/**

* Attempt Page

* @param quiz_attempt $attemptobj Instance of quiz_attempt

* @param int $page Current page number

* @param quiz_access_manager $accessmanager Instance of quiz_access_manager

* @param array $messages An array of messages

* @param array $slots Contains an array of integers that relate to questions

* @param int $id The ID of an attempt

* @param int $nextpage The number of the next page

public function attempt_page($attemptobj, $page, $accessmanager, $messages, $slots, $id,

$nextpage) {

$output = '';

$output .= $this->header();

$output .= $this->quiz_notices($messages);

$output .= $this->attempt_form($attemptobj, $page, $slots, $id, $nextpage);

$output .= $this->footer();

return $output;

}

/**

* Returns any notices.

* @param array $messages

public function quiz_notices($messages) {

if (!$messages) {

return '';

}

return $this->box($this->heading(get_string('accessnoticesheader', 'quiz'), 3) .

$this->access_messages($messages), 'quizaccessnotices');

}

/**

* Ouputs the form for making an attempt

* @param quiz_attempt $attemptobj

* @param int $page Current page number

* @param array $slots Array of integers relating to questions

* @param int $id ID of the attempt

* @param int $nextpage Next page number

public function attempt_form($attemptobj, $page, $slots, $id, $nextpage) {

$output = '';

// Start the form.

$output .= html_writer::start_tag('form',

array('action' => $attemptobj->processattempt_url(), 'method' => 'post',

'enctype' => 'multipart/form-data', 'accept-charset' => 'utf-8',

'id' => 'responseform'));

$output .= html_writer::start_tag('div');

// Print all the questions.

foreach ($slots as $slot) {

$output .= $attemptobj->render_question($slot, false,

$attemptobj->attempt_url($slot, $page));

}

$output .= html_writer::start_tag('div', array('class' => 'submitbtns'));

$output .= html_writer::empty_tag('input', array('type' => 'submit', 'name' => 'next',

'value' => get_string('next')));

$output .= html_writer::end_tag('div');

// Some hidden fields to trach what is going on.

$output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'attempt',

'value' => $attemptobj->get_attemptid()));

$output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'thispage',

'value' => $page, 'id' => 'followingpage'));

$output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'nextpage',

'value' => $nextpage));

$output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'timeup',

'value' => '0', 'id' => 'timeup'));

$output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey',

'value' => sesskey()));

$output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'scrollpos',

'value' => '', 'id' => 'scrollpos'));

// Add a hidden field with questionids. Do this at the end of the form, so

// if you navigate before the form has finished loading, it does not wipe all

// the student's answers.

$output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'slots',

'value' => implode(',', $slots)));

// Finish the form.

$output .= html_writer::end_tag('div');

$output .= html_writer::end_tag('form');

$output .= $this->connection_warning();

return $output;

}

/**

* Output the JavaScript required to initialise the countdown timer.

* @param int $timerstartvalue time remaining, in seconds.

public function initialise_timer($timerstartvalue, $ispreview) {

$options = array($timerstartvalue, (bool)$ispreview);

$this->page->requires->js_init_call('M.mod_quiz.timer.init', $options, false, quiz_get_js_module());

}

/**

* Output a page with an optional message, and JavaScript code to close the

* current window and redirect the parent window to a new URL.

* @param moodle_url $url the URL to redirect the parent window to.

* @param string $message message to display before closing the window. (optional)

* @return string HTML to output.

public function close_attempt_popup($url, $message = '') {

$output = '';

$output .= $this->header();

$output .= $this->box_start();

if ($message) {

$output .= html_writer::tag('p', $message);

$output .= html_writer::tag('p', get_string('windowclosing', 'quiz'));

$delay = 5;

} else {

$output .= html_writer::tag('p', get_string('pleaseclose', 'quiz'));

$delay = 0;

}

$this->page->requires->js_init_call('M.mod_quiz.secure_window.close',

array($url, $delay), false, quiz_get_js_module());

$output .= $this->box_end();

$output .= $this->footer();

return $output;

}

/**

* Print each message in an array, surrounded by <p>, </p> tags.

* @param array $messages the array of message strings.

* @param bool $return if true, return a string, instead of outputting.

* @return string HTML to output.

public function access_messages($messages) {

$output = '';

foreach ($messages as $message) {

$output .= html_writer::tag('p', $message) . "\n";

}

return $output;

}

* Summary Page

/**

* Create the summary page

* @param quiz_attempt $attemptobj

* @param mod_quiz_display_options $displayoptions

public function summary_page($attemptobj, $displayoptions) {

$output = '';

$output .= $this->header();

$output .= $this->heading(format_string($attemptobj->get_quiz_name()));

$output .= $this->heading(get_string('summaryofattempt', 'quiz'), 3);

$output .= $this->summary_table($attemptobj, $displayoptions);

$output .= $this->summary_page_controls($attemptobj);

$output .= $this->footer();

return $output;

}

/**

* Generates the table of summarydata

* @param quiz_attempt $attemptobj

* @param mod_quiz_display_options $displayoptions

public function summary_table($attemptobj, $displayoptions) {

// Prepare the summary table header.

$table = new html_table();

$table->attributes['class'] = 'generaltable quizsummaryofattempt boxaligncenter';

$table->head = array(get_string('question', 'quiz'), get_string('status', 'quiz'));

//$table->align = array('left', 'left');

$table->align = array('center', 'center', 'center');

// Get the summary info for each question.

$slots = $attemptobj->get_slots();

//Make a copy of the $slots array into $slots_ques array, but the difference is that $slots_ques array contains only bona-fide questions,

//not description questions!

//Frankie Kam, 29th April 2015

$slots_ques = array();

foreach ($slots as $slot) {

if (!$attemptobj->is_real_question($slot)) {

//Is the current question a description question? Skip it and don't copy it inside $slots_ques array!

continue;

}

//Make a copy of the question inside $slots_ques

$slots_ques[] = $slot;

}

$MAXVAL = sizeof($slots_ques);

$COLS=3;

if ($MAXVAL % $COLS > 0)

$nearest3 = $MAXVAL + ($COLS - $MAXVAL % $COLS);

else

$nearest3 = $MAXVAL;

$ROWS = $nearest3/$COLS;

if($MAXVAL>2)

$table->head = array(get_string('question', 'quiz'), get_string('status', 'quiz'), get_string('question', 'quiz'), get_string('status', 'quiz'), get_string('question', 'quiz'), get_string('status', 'quiz'));

else if($MAXVAL==2)

$table->head = array(get_string('question', 'quiz'), get_string('status', 'quiz'), get_string('question', 'quiz'), get_string('status', 'quiz'));

else if($MAXVAL==1)

$table->head = array(get_string('question', 'quiz'),get_string('status', 'quiz'));

else if($MAXVAL<=0)

$table->head = get_string('huh', 'what');

//This makes the first column of question number links, aligned to theright

//Frankie Kam, 29th April 2015

//Original was: $table->align = array('left', 'left');

$table->align = array('right', 'right','right', 'right', 'right', 'right');

$table->size = array('', '');

$markscolumn = $displayoptions->marks >= question_display_options::MARK_AND_MAX;

if ($markscolumn) {

$table->head[] = get_string('marks', 'quiz');

$table->align[] = 'left';

$table->size[] = '';

}

$table->data = array();

// Get the summary info for each question.

$slots = $attemptobj->get_slots();

for($r = 1; $r <= $ROWS; $r++)

foreach ($slots as $slot) {

{

if (!$attemptobj->is_real_question($slot)) {

continue;

}

$flag = '';

if ($attemptobj->is_question_flagged($slot)) {

$flag = html_writer::empty_tag('img', array('src' => $this->pix_url('i/flagged'),

'alt' => get_string('flagged', 'question'), 'class' => 'questionflag icon-post'));

}

if ($attemptobj->can_navigate_to($slot)) {

$row = array(html_writer::link($attemptobj->attempt_url($slot),

$attemptobj->get_question_number($slot) . $flag),

$attemptobj->get_question_status($slot, $displayoptions->correctness),array('text-align' => 'center'));

} else {

$row = array($attemptobj->get_question_number($slot) . $flag,

$attemptobj->get_question_status($slot, $displayoptions->correctness));

}

if ($markscolumn) {

$row[] = $attemptobj->get_question_mark($slot);

}

$table->data[] = $row;

$table->rowclasses[] = $attemptobj->get_question_state_class(

$slot, $displayoptions->correctness);

}

// Print the summary table.

$output = html_writer::table($table);

return $output;

}

/**

* Creates any controls a the page should have.

* @param quiz_attempt $attemptobj

public function summary_page_controls($attemptobj) {

$output = '';

// Return to place button.

$column1 = '';

if ($attemptobj->get_state() == quiz_attempt::IN_PROGRESS) {

$column2 = '';

$button = new single_button(

$column3 = '';

new moodle_url($attemptobj->attempt_url(null, $attemptobj->get_currentpage())),

get_string('returnattempt', 'qu

if($r+($nearest3/$COLS)*2 <= $MAXVAL)

{

$flag1 = '';

if ($attemptobj->is_real_question($slots_ques[$r-1])) {

if ($attemptobj->is_question_flagged($slots_ques[$r-1])) {

$flag1 = html_writer::empty_tag('img', array('src' => $this->pix_url('i/flagged'),

'alt' =

已保存差异

原始文本

Open file

<?php
//Original Moodle 2.7.2 /mod/quiz/renderer.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/>.

/**
 * Defines the renderer for the quiz module.
 *
 * @package   mod_quiz
 * @copyright 2011 The Open University
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

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

/**
 * The renderer for the quiz module.
 *
 * @copyright  2011 The Open University
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class mod_quiz_renderer extends plugin_renderer_base {
    /**
     * Builds the review page
     *
     * @param quiz_attempt $attemptobj an instance of quiz_attempt.
     * @param array $slots an array of intgers relating to questions.
     * @param int $page the current page number
     * @param bool $showall whether to show entire attempt on one page.
     * @param bool $lastpage if true the current page is the last page.
     * @param mod_quiz_display_options $displayoptions instance of mod_quiz_display_options.
     * @param array $summarydata contains all table data
     * @return $output containing html data.
     */
    public function review_page(quiz_attempt $attemptobj, $slots, $page, $showall,
                                $lastpage, mod_quiz_display_options $displayoptions,
                                $summarydata) {

$output = '';
        $output .= $this->header();
        $output .= $this->review_summary_table($summarydata, $page);
        $output .= $this->review_form($page, $showall, $displayoptions,
                $this->questions($attemptobj, true, $slots, $page, $showall, $displayoptions),
                $attemptobj);

$output .= $this->review_next_navigation($attemptobj, $page, $lastpage);
        $output .= $this->footer();
        return $output;
    }

/**
     * Renders the review question pop-up.
     *
     * @param quiz_attempt $attemptobj an instance of quiz_attempt.
     * @param int $slot which question to display.
     * @param int $seq which step of the question attempt to show. null = latest.
     * @param mod_quiz_display_options $displayoptions instance of mod_quiz_display_options.
     * @param array $summarydata contains all table data
     * @return $output containing html data.
     */
    public function review_question_page(quiz_attempt $attemptobj, $slot, $seq,
            mod_quiz_display_options $displayoptions, $summarydata) {

$output = '';
        $output .= $this->header();
        $output .= $this->review_summary_table($summarydata, 0);

if (!is_null($seq)) {
            $output .= $attemptobj->render_question_at_step($slot, $seq, true);
        } else {
            $output .= $attemptobj->render_question($slot, true);
        }

$output .= $this->close_window_button();
        $output .= $this->footer();
        return $output;
    }

/**
     * Renders the review question pop-up.
     *
     * @param string $message Why the review is not allowed.
     * @return string html to output.
     */
    public function review_question_not_allowed($message) {
        $output = '';
        $output .= $this->header();
        $output .= $this->heading(format_string($attemptobj->get_quiz_name(), true,
                                  array("context" => $attemptobj->get_quizobj()->get_context())));
        $output .= $this->notification($message);
        $output .= $this->close_window_button();
        $output .= $this->footer();
        return $output;
    }

/**
     * Filters the summarydata array.
     *
     * @param array $summarydata contains row data for table
     * @param int $page the current page number
     * @return $summarydata containing filtered row data
     */
    protected function filter_review_summary_table($summarydata, $page) {
        if ($page == 0) {
            return $summarydata;
        }

// Only show some of summary table on subsequent pages.
        foreach ($summarydata as $key => $rowdata) {
            if (!in_array($key, array('user', 'attemptlist'))) {
                unset($summarydata[$key]);
            }
        }

return $summarydata;
    }

/**
     * Outputs the table containing data from summary data array
     *
     * @param array $summarydata contains row data for table
     * @param int $page contains the current page number
     */
    public function review_summary_table($summarydata, $page) {
        $summarydata = $this->filter_review_summary_table($summarydata, $page);
        if (empty($summarydata)) {
            return '';
        }

$output = '';
        $output .= html_writer::start_tag('table', array(
                'class' => 'generaltable generalbox quizreviewsummary'));
        $output .= html_writer::start_tag('tbody');
        foreach ($summarydata as $rowdata) {
            if ($rowdata['title'] instanceof renderable) {
                $title = $this->render($rowdata['title']);
            } else {
                $title = $rowdata['title'];
            }

if ($rowdata['content'] instanceof renderable) {
                $content = $this->render($rowdata['content']);
            } else {
                $content = $rowdata['content'];
            }

$output .= html_writer::tag('tr',
                html_writer::tag('th', $title, array('class' => 'cell', 'scope' => 'row')) .
                        html_writer::tag('td', $content, array('class' => 'cell'))
            );
        }

$output .= html_writer::end_tag('tbody');
        $output .= html_writer::end_tag('table');
        return $output;
    }

/**
     * Renders each question
     *
     * @param quiz_attempt $attemptobj instance of quiz_attempt
     * @param bool $reviewing
     * @param array $slots array of intgers relating to questions
     * @param int $page current page number
     * @param bool $showall if true shows attempt on single page
     * @param mod_quiz_display_options $displayoptions instance of mod_quiz_display_options
     */
    public function questions(quiz_attempt $attemptobj, $reviewing, $slots, $page, $showall,
                              mod_quiz_display_options $displayoptions) {
        $output = '';
        foreach ($slots as $slot) {
            $output .= $attemptobj->render_question($slot, $reviewing,
                    $attemptobj->review_url($slot, $page, $showall));
        }
        return $output;
    }

/**
     * Renders the main bit of the review page.
     *
     * @param array $summarydata contain row data for table
     * @param int $page current page number
     * @param mod_quiz_display_options $displayoptions instance of mod_quiz_display_options
     * @param $content contains each question
     * @param quiz_attempt $attemptobj instance of quiz_attempt
     * @param bool $showall if true display attempt on one page
     */
    public function review_form($page, $showall, $displayoptions, $content, $attemptobj) {
        if ($displayoptions->flags != question_display_options::EDITABLE) {
            return $content;
        }

$this->page->requires->js_init_call('M.mod_quiz.init_review_form', null, false,
                quiz_get_js_module());

$output = '';
        $output .= html_writer::start_tag('form', array('action' => $attemptobj->review_url(null,
                $page, $showall), 'method' => 'post', 'class' => 'questionflagsaveform'));
        $output .= html_writer::start_tag('div');
        $output .= $content;
        $output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey',
                'value' => sesskey()));
        $output .= html_writer::start_tag('div', array('class' => 'submitbtns'));
        $output .= html_writer::empty_tag('input', array('type' => 'submit',
                'class' => 'questionflagsavebutton', 'name' => 'savingflags',
                'value' => get_string('saveflags', 'question')));
        $output .= html_writer::end_tag('div');
        $output .= html_writer::end_tag('div');
        $output .= html_writer::end_tag('form');

return $output;
    }

/**
     * Returns either a liink or button
     *
     * @param quiz_attempt $attemptobj instance of quiz_attempt
     */
    public function finish_review_link(quiz_attempt $attemptobj) {
        $url = $attemptobj->view_url();

if ($attemptobj->get_access_manager(time())->attempt_must_be_in_popup()) {
            $this->page->requires->js_init_call('M.mod_quiz.secure_window.init_close_button',
                    array($url), quiz_get_js_module());
            return html_writer::empty_tag('input', array('type' => 'button',
                    'value' => get_string('finishreview', 'quiz'),
                    'id' => 'secureclosebutton'));

} else {
            return html_writer::link($url, get_string('finishreview', 'quiz'));
        }
    }

/**
     * Creates a next page arrow or the finishing link
     *
     * @param quiz_attempt $attemptobj instance of quiz_attempt
     * @param int $page the current page
     * @param bool $lastpage if true current page is the last page
     */
    public function review_next_navigation(quiz_attempt $attemptobj, $page, $lastpage) {
        if ($lastpage) {
            $nav = $this->finish_review_link($attemptobj);
        } else {
            $nav = link_arrow_right(get_string('next'), $attemptobj->review_url(null, $page + 1));
        }
        return html_writer::tag('div', $nav, array('class' => 'submitbtns'));
    }

/**
     * Return the HTML of the quiz timer.
     * @return string HTML content.
     */
    public function countdown_timer(quiz_attempt $attemptobj, $timenow) {

$timeleft = $attemptobj->get_time_left_display($timenow);
        if ($timeleft !== false) {
            $ispreview = $attemptobj->is_preview();
            $timerstartvalue = $timeleft;
            if (!$ispreview) {
                // Make sure the timer starts just above zero. If $timeleft was <= 0, then
                // this will just have the effect of causing the quiz to be submitted immediately.
                $timerstartvalue = max($timerstartvalue, 1);
            }
            $this->initialise_timer($timerstartvalue, $ispreview);
        }

return html_writer::tag('div', get_string('timeleft', 'quiz') . ' ' .
                html_writer::tag('span', '', array('id' => 'quiz-time-left')),
                array('id' => 'quiz-timer', 'role' => 'timer',
                    'aria-atomic' => 'true', 'aria-relevant' => 'text'));
    }

/**
     * Create a preview link
     *
     * @param $url contains a url to the given page
     */
    public function restart_preview_button($url) {
        return $this->single_button($url, get_string('startnewpreview', 'quiz'));
    }

/**
     * Outputs the navigation block panel
     *
     * @param quiz_nav_panel_base $panel instance of quiz_nav_panel_base
     */
    public function navigation_panel(quiz_nav_panel_base $panel) {

$output = '';
        $userpicture = $panel->user_picture();
        if ($userpicture) {
            $fullname = fullname($userpicture->user);
            if ($userpicture->size === true) {
                $fullname = html_writer::div($fullname);
            }
            $output .= html_writer::tag('div', $this->render($userpicture) . $fullname,
                    array('id' => 'user-picture', 'class' => 'clearfix'));
        }
        $output .= $panel->render_before_button_bits($this);

$bcc = $panel->get_button_container_class();
        $output .= html_writer::start_tag('div', array('class' => "qn_buttons $bcc"));
        foreach ($panel->get_question_buttons() as $button) {
            $output .= $this->render($button);
        }
        $output .= html_writer::end_tag('div');

$output .= html_writer::tag('div', $panel->render_end_bits($this),
                array('class' => 'othernav'));

$this->page->requires->js_init_call('M.mod_quiz.nav.init', null, false,
                quiz_get_js_module());

return $output;
    }

/**
     * Returns the quizzes navigation button
     *
     * @param quiz_nav_question_button $button
     */
    protected function render_quiz_nav_question_button(quiz_nav_question_button $button) {
        $classes = array('qnbutton', $button->stateclass, $button->navmethod);
        $attributes = array();

if ($button->currentpage) {
            $classes[] = 'thispage';
            $attributes[] = get_string('onthispage', 'quiz');
        }

// Flagged?
        if ($button->flagged) {
            $classes[] = 'flagged';
            $flaglabel = get_string('flagged', 'question');
        } else {
            $flaglabel = '';
        }
        $attributes[] = html_writer::tag('span', $flaglabel, array('class' => 'flagstate'));

if (is_numeric($button->number)) {
            $qnostring = 'questionnonav';
        } else {
            $qnostring = 'questionnonavinfo';
        }

$a = new stdClass();
        $a->number = $button->number;
        $a->attributes = implode(' ', $attributes);
        $tagcontents = html_writer::tag('span', '', array('class' => 'thispageholder')) .
                        html_writer::tag('span', '', array('class' => 'trafficlight')) .
                        get_string($qnostring, 'quiz', $a);
        $tagattributes = array('class' => implode(' ', $classes), 'id' => $button->id,
                                  'title' => $button->statestring);

if ($button->url) {
            return html_writer::link($button->url, $tagcontents, $tagattributes);
        } else {
            return html_writer::tag('span', $tagcontents, $tagattributes);
        }
    }

/**
     * outputs the link the other attempts.
     *
     * @param mod_quiz_links_to_other_attempts $links
     */
    protected function render_mod_quiz_links_to_other_attempts(
            mod_quiz_links_to_other_attempts $links) {
        $attemptlinks = array();
        foreach ($links->links as $attempt => $url) {
            if ($url) {
                $attemptlinks[] = html_writer::link($url, $attempt);
            } else {
                $attemptlinks[] = html_writer::tag('strong', $attempt);
            }
        }
        return implode(', ', $attemptlinks);
    }

public function start_attempt_page(quiz $quizobj, mod_quiz_preflight_check_form $mform) {
        $output = '';
        $output .= $this->header();
        $output .= $this->heading(format_string($quizobj->get_quiz_name(), true,
                                  array("context" => $quizobj->get_context())));
        $output .= $this->quiz_intro($quizobj->get_quiz(), $quizobj->get_cm());
        ob_start();
        $mform->display();
        $output .= ob_get_clean();
        $output .= $this->footer();
        return $output;
    }

/**
     * Attempt Page
     *
     * @param quiz_attempt $attemptobj Instance of quiz_attempt
     * @param int $page Current page number
     * @param quiz_access_manager $accessmanager Instance of quiz_access_manager
     * @param array $messages An array of messages
     * @param array $slots Contains an array of integers that relate to questions
     * @param int $id The ID of an attempt
     * @param int $nextpage The number of the next page
     */
    public function attempt_page($attemptobj, $page, $accessmanager, $messages, $slots, $id,
            $nextpage) {
        $output = '';
        $output .= $this->header();
        $output .= $this->quiz_notices($messages);
        $output .= $this->attempt_form($attemptobj, $page, $slots, $id, $nextpage);
        $output .= $this->footer();
        return $output;
    }

/**
     * Returns any notices.
     *
     * @param array $messages
     */
    public function quiz_notices($messages) {
        if (!$messages) {
            return '';
        }
        return $this->box($this->heading(get_string('accessnoticesheader', 'quiz'), 3) .
                $this->access_messages($messages), 'quizaccessnotices');
    }

/**
     * Ouputs the form for making an attempt
     *
     * @param quiz_attempt $attemptobj
     * @param int $page Current page number
     * @param array $slots Array of integers relating to questions
     * @param int $id ID of the attempt
     * @param int $nextpage Next page number
     */
    public function attempt_form($attemptobj, $page, $slots, $id, $nextpage) {
        $output = '';

// Start the form.
        $output .= html_writer::start_tag('form',
                array('action' => $attemptobj->processattempt_url(), 'method' => 'post',
                'enctype' => 'multipart/form-data', 'accept-charset' => 'utf-8',
                'id' => 'responseform'));
        $output .= html_writer::start_tag('div');

// Print all the questions.
        foreach ($slots as $slot) {
            $output .= $attemptobj->render_question($slot, false,
                    $attemptobj->attempt_url($slot, $page));
        }

$output .= html_writer::start_tag('div', array('class' => 'submitbtns'));
        $output .= html_writer::empty_tag('input', array('type' => 'submit', 'name' => 'next',
                'value' => get_string('next')));
        $output .= html_writer::end_tag('div');

// Some hidden fields to trach what is going on.
        $output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'attempt',
                'value' => $attemptobj->get_attemptid()));
        $output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'thispage',
                'value' => $page, 'id' => 'followingpage'));
        $output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'nextpage',
                'value' => $nextpage));
        $output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'timeup',
                'value' => '0', 'id' => 'timeup'));
        $output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey',
                'value' => sesskey()));
        $output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'scrollpos',
                'value' => '', 'id' => 'scrollpos'));

// Add a hidden field with questionids. Do this at the end of the form, so
        // if you navigate before the form has finished loading, it does not wipe all
        // the student's answers.
        $output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'slots',
                'value' => implode(',', $slots)));

// Finish the form.
        $output .= html_writer::end_tag('div');
        $output .= html_writer::end_tag('form');

$output .= $this->connection_warning();

return $output;
    }

/**
     * Output the JavaScript required to initialise the countdown timer.
     * @param int $timerstartvalue time remaining, in seconds.
     */
    public function initialise_timer($timerstartvalue, $ispreview) {
        $options = array($timerstartvalue, (bool)$ispreview);
        $this->page->requires->js_init_call('M.mod_quiz.timer.init', $options, false, quiz_get_js_module());
    }

/**
     * Output a page with an optional message, and JavaScript code to close the
     * current window and redirect the parent window to a new URL.
     * @param moodle_url $url the URL to redirect the parent window to.
     * @param string $message message to display before closing the window. (optional)
     * @return string HTML to output.
     */
    public function close_attempt_popup($url, $message = '') {
        $output = '';
        $output .= $this->header();
        $output .= $this->box_start();

if ($message) {
            $output .= html_writer::tag('p', $message);
            $output .= html_writer::tag('p', get_string('windowclosing', 'quiz'));
            $delay = 5;
        } else {
            $output .= html_writer::tag('p', get_string('pleaseclose', 'quiz'));
            $delay = 0;
        }
        $this->page->requires->js_init_call('M.mod_quiz.secure_window.close',
                array($url, $delay), false, quiz_get_js_module());

$output .= $this->box_end();
        $output .= $this->footer();
        return $output;
    }

/**
     * Print each message in an array, surrounded by &lt;p>, &lt;/p> tags.
     *
     * @param array $messages the array of message strings.
     * @param bool $return if true, return a string, instead of outputting.
     *
     * @return string HTML to output.
     */
    public function access_messages($messages) {
        $output = '';
        foreach ($messages as $message) {
            $output .= html_writer::tag('p', $message) . "\n";
        }
        return $output;
    }

/*
     * Summary Page
     */
    /**
     * Create the summary page
     *
     * @param quiz_attempt $attemptobj
     * @param mod_quiz_display_options $displayoptions
     */
    public function summary_page($attemptobj, $displayoptions) {
        $output = '';
        $output .= $this->header();
        $output .= $this->heading(format_string($attemptobj->get_quiz_name()));
        $output .= $this->heading(get_string('summaryofattempt', 'quiz'), 3);
        $output .= $this->summary_table($attemptobj, $displayoptions);
        $output .= $this->summary_page_controls($attemptobj);
        $output .= $this->footer();
        return $output;
    }

/**
     * Generates the table of summarydata
     *
     * @param quiz_attempt $attemptobj
     * @param mod_quiz_display_options $displayoptions
     */
    public function summary_table($attemptobj, $displayoptions) { 
        // Prepare the summary table header.
        $table = new html_table();
        $table->attributes['class'] = 'generaltable quizsummaryofattempt boxaligncenter';
        $table->head = array(get_string('question', 'quiz'), get_string('status', 'quiz'));
        //$table->align = array('left', 'left');
		$table->align = array('center', 'center', 'center');
        $table->size = array('', '');
        $markscolumn = $displayoptions->marks >= question_display_options::MARK_AND_MAX;
        if ($markscolumn) {
            $table->head[] = get_string('marks', 'quiz');
            $table->align[] = 'left';
			$table->size[] = '';
        }
        $table->data = array();

// Get the summary info for each question.
        $slots = $attemptobj->get_slots();
        foreach ($slots as $slot) {
            if (!$attemptobj->is_real_question($slot)) {
                continue;
            }
            $flag = '';
            if ($attemptobj->is_question_flagged($slot)) {
                $flag = html_writer::empty_tag('img', array('src' => $this->pix_url('i/flagged'),
                        'alt' => get_string('flagged', 'question'), 'class' => 'questionflag icon-post'));
            }
            if ($attemptobj->can_navigate_to($slot)) {
                $row = array(html_writer::link($attemptobj->attempt_url($slot),
                        $attemptobj->get_question_number($slot) . $flag),
                        $attemptobj->get_question_status($slot, $displayoptions->correctness),array('text-align' => 'center'));
            } else {
                $row = array($attemptobj->get_question_number($slot) . $flag,
                                $attemptobj->get_question_status($slot, $displayoptions->correctness));
            }
            if ($markscolumn) {
                $row[] = $attemptobj->get_question_mark($slot);
            }
            $table->data[] = $row;
            $table->rowclasses[] = $attemptobj->get_question_state_class(
                    $slot, $displayoptions->correctness);
        }

// Print the summary table.
        $output = html_writer::table($table);

return $output;
    }

/**
     * Creates any controls a the page should have.
     *
     * @param quiz_attempt $attemptobj
     */
    public function summary_page_controls($attemptobj) {
        $output = '';

// Return to place button.
        if ($attemptobj->get_state() == quiz_attempt::IN_PROGRESS) {
            $button = new single_button(
                    new moodle_url($attemptobj->attempt_url(null, $attemptobj->get_currentpage())),
                    get_string('returnattempt', 'quiz'));
            $output .= $this->container($this->container($this->render($button),
                    'controls'), 'submitbtns mdl-align');
        }

// Finish attempt button.
        $options = array(
            'attempt' => $attemptobj->get_attemptid(),
            'finishattempt' => 1,
            'timeup' => 0,
            'slots' => '',
            'sesskey' => sesskey(),
        );

$button = new single_button(
                new moodle_url($attemptobj->processattempt_url(), $options),
                get_string('submitallandfinish', 'quiz'));
        $button->id = 'responseform';
        if ($attemptobj->get_state() == quiz_attempt::IN_PROGRESS) {
            $button->add_action(new confirm_action(get_string('confirmclose', 'quiz'), null,
                    get_string('submitallandfinish', 'quiz')));
        }

$duedate = $attemptobj->get_due_date();
        $message = '';
        if ($attemptobj->get_state() == quiz_attempt::OVERDUE) {
            $message = get_string('overduemustbesubmittedby', 'quiz', userdate($duedate));

} else if ($duedate) {
            $message = get_string('mustbesubmittedby', 'quiz', userdate($duedate));
        }

$output .= $this->countdown_timer($attemptobj, time());
        $output .= $this->container($message . $this->container(
                $this->render($button), 'controls'), 'submitbtns mdl-align');

return $output;
    }

/*
     * View Page
     */
    /**
     * Generates the view page
     *
     * @param int $course The id of the course
     * @param array $quiz Array conting quiz data
     * @param int $cm Course Module ID
     * @param int $context The page context ID
     * @param array $infomessages information about this quiz
     * @param mod_quiz_view_object $viewobj
     * @param string $buttontext text for the start/continue attempt button, if
     *      it should be shown.
     * @param array $infomessages further information about why the student cannot
     *      attempt this quiz now, if appicable this quiz
     */
    public function view_page($course, $quiz, $cm, $context, $viewobj) {
        $output = '';
        $output .= $this->view_information($quiz, $cm, $context, $viewobj->infomessages);
        $output .= $this->view_table($quiz, $context, $viewobj);
        $output .= $this->view_result_info($quiz, $context, $cm, $viewobj);
        $output .= $this->box($this->view_page_buttons($viewobj), 'quizattempt');
        return $output;
    }

/**
     * Work out, and render, whatever buttons, and surrounding info, should appear
     * at the end of the review page.
     * @param mod_quiz_view_object $viewobj the information required to display
     * the view page.
     * @return string HTML to output.
     */
    public function view_page_buttons(mod_quiz_view_object $viewobj) {
        global $CFG;
        $output = '';

if (!$viewobj->quizhasquestions) {
            $output .= $this->no_questions_message($viewobj->canedit, $viewobj->editurl);
        }

$output .= $this->access_messages($viewobj->preventmessages);

if ($viewobj->buttontext) {
            $output .= $this->start_attempt_button($viewobj->buttontext,
                    $viewobj->startattempturl, $viewobj->startattemptwarning,
                    $viewobj->popuprequired, $viewobj->popupoptions);

}

if ($viewobj->showbacktocourse) {
            $output .= $this->single_button($viewobj->backtocourseurl,
                    get_string('backtocourse', 'quiz'), 'get',
                    array('class' => 'continuebutton'));
        }

return $output;
    }

/**
     * Generates the view attempt button
     *
     * @param int $course The course ID
     * @param array $quiz Array containging quiz date
     * @param int $cm The Course Module ID
     * @param int $context The page Context ID
     * @param mod_quiz_view_object $viewobj
     * @param string $buttontext
     */
    public function start_attempt_button($buttontext, moodle_url $url,
            $startattemptwarning, $popuprequired, $popupoptions) {

$button = new single_button($url, $buttontext);
        $button->class .= ' quizstartbuttondiv';

$warning = '';
        if ($popuprequired) {
            $this->page->requires->js_module(quiz_get_js_module());
            $this->page->requires->js('/mod/quiz/module.js');
            $popupaction = new popup_action('click', $url, 'quizpopup', $popupoptions);

$button->class .= ' quizsecuremoderequired';
            $button->add_action(new component_action('click',
                    'M.mod_quiz.secure_window.start_attempt_action', array(
                        'url' => $url->out(false),
                        'windowname' => 'quizpopup',
                        'options' => $popupaction->get_js_options(),
                        'fullscreen' => true,
                        'startattemptwarning' => $startattemptwarning,
                    )));

$warning = html_writer::tag('noscript', $this->heading(get_string('noscript', 'quiz')));

} else if ($startattemptwarning) {
            $button->add_action(new confirm_action($startattemptwarning, null,
                    get_string('startattempt', 'quiz')));
        }

return $this->render($button) . $warning;
    }

/**
     * Generate a message saying that this quiz has no questions, with a button to
     * go to the edit page, if the user has the right capability.
     * @param object $quiz the quiz settings.
     * @param object $cm the course_module object.
     * @param object $context the quiz context.
     * @return string HTML to output.
     */
    public function no_questions_message($canedit, $editurl) {
        $output = '';
        $output .= $this->notification(get_string('noquestions', 'quiz'));
        if ($canedit) {
            $output .= $this->single_button($editurl, get_string('editquiz', 'quiz'), 'get');
        }

return $output;
    }

/**
     * Outputs an error message for any guests accessing the quiz
     *
     * @param int $course The course ID
     * @param array $quiz Array contingin quiz data
     * @param int $cm Course Module ID
     * @param int $context The page contect ID
     * @param array $messages Array containing any messages
     */
    public function view_page_guest($course, $quiz, $cm, $context, $messages) {
        $output = '';
        $output .= $this->view_information($quiz, $cm, $context, $messages);
        $guestno = html_writer::tag('p', get_string('guestsno', 'quiz'));
        $liketologin = html_writer::tag('p', get_string('liketologin'));
        $output .= $this->confirm($guestno."\n\n".$liketologin."\n", get_login_url(),
                get_referer(false));
        return $output;
    }

/**
     * Outputs and error message for anyone who is not enrolle don the course
     *
     * @param int $course The course ID
     * @param array $quiz Array contingin quiz data
     * @param int $cm Course Module ID
     * @param int $context The page contect ID
     * @param array $messages Array containing any messages
     */
    public function view_page_notenrolled($course, $quiz, $cm, $context, $messages) {
        global $CFG;
        $output = '';
        $output .= $this->view_information($quiz, $cm, $context, $messages);
        $youneedtoenrol = html_writer::tag('p', get_string('youneedtoenrol', 'quiz'));
        $button = html_writer::tag('p',
                $this->continue_button($CFG->wwwroot . '/course/view.php?id=' . $course->id));
        $output .= $this->box($youneedtoenrol."\n\n".$button."\n", 'generalbox', 'notice');
        return $output;
    }

/**
     * Output the page information
     *
     * @param object $quiz the quiz settings.
     * @param object $cm the course_module object.
     * @param object $context the quiz context.
     * @param array $messages any access messages that should be described.
     * @return string HTML to output.
     */
    public function view_information($quiz, $cm, $context, $messages) {
        global $CFG;

$output = '';

// Print quiz name and description.
        $output .= $this->heading(format_string($quiz->name));
        $output .= $this->quiz_intro($quiz, $cm);

// Output any access messages.
        if ($messages) {
            $output .= $this->box($this->access_messages($messages), 'quizinfo');
        }

// Show number of attempts summary to those who can view reports.
        if (has_capability('mod/quiz:viewreports', $context)) {
            if ($strattemptnum = $this->quiz_attempt_summary_link_to_reports($quiz, $cm,
                    $context)) {
                $output .= html_writer::tag('div', $strattemptnum,
                        array('class' => 'quizattemptcounts'));
            }
        }
        return $output;
    }

/**
     * Output the quiz intro.
     * @param object $quiz the quiz settings.
     * @param object $cm the course_module object.
     * @return string HTML to output.
     */
    public function quiz_intro($quiz, $cm) {
        if (html_is_blank($quiz->intro)) {
            return '';
        }

return $this->box(format_module_intro('quiz', $quiz, $cm->id), 'generalbox', 'intro');
    }

/**
     * Generates the table heading.
     */
    public function view_table_heading() {
        return $this->heading(get_string('summaryofattempts', 'quiz'), 3);
    }

/**
     * Generates the table of data
     *
     * @param array $quiz Array contining quiz data
     * @param int $context The page context ID
     * @param mod_quiz_view_object $viewobj
     */
    public function view_table($quiz, $context, $viewobj) {
        if (!$viewobj->attempts) {
            return '';
        }

// Prepare table header.
        $table = new html_table();
        $table->attributes['class'] = 'generaltable quizattemptsummary';
        $table->head = array();
        $table->align = array();
        $table->size = array();
        if ($viewobj->attemptcolumn) {
            $table->head[] = get_string('attemptnumber', 'quiz');
            $table->align[] = 'center';
            $table->size[] = '';
        }
        $table->head[] = get_string('attemptstate', 'quiz');
        //$table->align[] = 'left';
		$table->align[] = 'center';
        $table->size[] = '';
        if ($viewobj->markcolumn) {
            $table->head[] = get_string('marks', 'quiz') . ' / ' .
                    quiz_format_grade($quiz, $quiz->sumgrades);
            $table->align[] = 'center';
            $table->size[] = '';
        }
        if ($viewobj->gradecolumn) {
            $table->head[] = get_string('grade') . ' / ' .
                    quiz_format_grade($quiz, $quiz->grade);
            $table->align[] = 'center';
            $table->size[] = '';
        }
        if ($viewobj->canreviewmine) {
            $table->head[] = get_string('review', 'quiz');
            $table->align[] = 'center';
            $table->size[] = '';
        }
        if ($viewobj->feedbackcolumn) {
            $table->head[] = get_string('feedback', 'quiz');
            //$table->align[] = 'left';
			$table->align[] = 'center';
            $table->size[] = '';
        }

// One row for each attempt.
        foreach ($viewobj->attemptobjs as $attemptobj) {
            $attemptoptions = $attemptobj->get_display_options(true);
            $row = array();

// Add the attempt number.
            if ($viewobj->attemptcolumn) {
                if ($attemptobj->is_preview()) {
                    $row[] = get_string('preview', 'quiz');
                } else {
                    $row[] = $attemptobj->get_attempt_number();
                }
            }

$row[] = $this->attempt_state($attemptobj);

if ($viewobj->markcolumn) {
                if ($attemptoptions->marks >= question_display_options::MARK_AND_MAX &&
                        $attemptobj->is_finished()) {
                    $row[] = quiz_format_grade($quiz, $attemptobj->get_sum_marks());
                } else {
                    $row[] = '';
                }
            }

// Ouside the if because we may be showing feedback but not grades.
            $attemptgrade = quiz_rescale_grade($attemptobj->get_sum_marks(), $quiz, false);

if ($viewobj->gradecolumn) {
                if ($attemptoptions->marks >= question_display_options::MARK_AND_MAX &&
                        $attemptobj->is_finished()) {

// Highlight the highest grade if appropriate.
                    if ($viewobj->overallstats && !$attemptobj->is_preview()
                            && $viewobj->numattempts > 1 && !is_null($viewobj->mygrade)
                            && $attemptobj->get_state() == quiz_attempt::FINISHED
                            && $attemptgrade == $viewobj->mygrade
                            && $quiz->grademethod == QUIZ_GRADEHIGHEST) {
                        $table->rowclasses[$attemptobj->get_attempt_number()] = 'bestrow';
                    }

$row[] = quiz_format_grade($quiz, $attemptgrade);
                } else {
                    $row[] = '';
                }
            }

if ($viewobj->canreviewmine) {
                $row[] = $viewobj->accessmanager->make_review_link($attemptobj->get_attempt(),
                        $attemptoptions, $this);
            }

if ($viewobj->feedbackcolumn && $attemptobj->is_finished()) {
                if ($attemptoptions->overallfeedback) {
                    $row[] = quiz_feedback_for_grade($attemptgrade, $quiz, $context);
                } else {
                    $row[] = '';
                }
            }

if ($attemptobj->is_preview()) {
                $table->data['preview'] = $row;
            } else {
                $table->data[$attemptobj->get_attempt_number()] = $row;
            }
        } // End of loop over attempts.

$output = '';
        $output .= $this->view_table_heading();
        $output .= html_writer::table($table);
        return $output;
    }

/**
     * Generate a brief textual desciption of the current state of an attempt.
     * @param quiz_attempt $attemptobj the attempt
     * @param int $timenow the time to use as 'now'.
     * @return string the appropriate lang string to describe the state.
     */
    public function attempt_state($attemptobj) {
        switch ($attemptobj->get_state()) {
            case quiz_attempt::IN_PROGRESS:
                return get_string('stateinprogress', 'quiz');

case quiz_attempt::OVERDUE:
                return get_string('stateoverdue', 'quiz') . html_writer::tag('span',
                        get_string('stateoverduedetails', 'quiz',
                                userdate($attemptobj->get_due_date())),
                        array('class' => 'statedetails'));

case quiz_attempt::FINISHED:
                return get_string('statefinished', 'quiz') . html_writer::tag('span',
                        get_string('statefinisheddetails', 'quiz',
                                userdate($attemptobj->get_submitted_date())),
                        array('class' => 'statedetails'));

case quiz_attempt::ABANDONED:
                return get_string('stateabandoned', 'quiz');
        }
    }

/**
     * Generates data pertaining to quiz results
     *
     * @param array $quiz Array containing quiz data
     * @param int $context The page context ID
     * @param int $cm The Course Module Id
     * @param mod_quiz_view_object $viewobj
     */
    public function view_result_info($quiz, $context, $cm, $viewobj) {
        $output = '';
        if (!$viewobj->numattempts && !$viewobj->gradecolumn && is_null($viewobj->mygrade)) {
            return $output;
        }
        $resultinfo = '';

if ($viewobj->overallstats) {
            if ($viewobj->moreattempts) {
                $a = new stdClass();
                $a->method = quiz_get_grading_option_name($quiz->grademethod);
                $a->mygrade = quiz_format_grade($quiz, $viewobj->mygrade);
                $a->quizgrade = quiz_format_grade($quiz, $quiz->grade);
                $resultinfo .= $this->heading(get_string('gradesofar', 'quiz', $a), 3);
            } else {
                $a = new stdClass();
                $a->grade = quiz_format_grade($quiz, $viewobj->mygrade);
                $a->maxgrade = quiz_format_grade($quiz, $quiz->grade);
                $a = get_string('outofshort', 'quiz', $a);
                $resultinfo .= $this->heading(get_string('yourfinalgradeis', 'quiz', $a), 3);
            }
        }

if ($viewobj->mygradeoverridden) {

$resultinfo .= html_writer::tag('p', get_string('overriddennotice', 'grades'),
                    array('class' => 'overriddennotice'))."\n";
        }
        if ($viewobj->gradebookfeedback) {
            $resultinfo .= $this->heading(get_string('comment', 'quiz'), 3);
            $resultinfo .= html_writer::div($viewobj->gradebookfeedback, 'quizteacherfeedback') . "\n";
        }
        if ($viewobj->feedbackcolumn) {
            $resultinfo .= $this->heading(get_string('overallfeedback', 'quiz'), 3);
            $resultinfo .= html_writer::div(
                    quiz_feedback_for_grade($viewobj->mygrade, $quiz, $context),
                    'quizgradefeedback') . "\n";
        }

if ($resultinfo) {
            $output .= $this->box($resultinfo, 'generalbox', 'feedback');
        }
        return $output;
    }

/**
     * Output either a link to the review page for an attempt, or a button to
     * open the review in a popup window.
     *
     * @param moodle_url $url of the target page.
     * @param bool $reviewinpopup whether a pop-up is required.
     * @param array $popupoptions options to pass to the popup_action constructor.
     * @return string HTML to output.
     */
    public function review_link($url, $reviewinpopup, $popupoptions) {
        if ($reviewinpopup) {
            $button = new single_button($url, get_string('review', 'quiz'));
            $button->add_action(new popup_action('click', $url, 'quizpopup', $popupoptions));
            return $this->render($button);

} else {
            return html_writer::link($url, get_string('review', 'quiz'),
                    array('title' => get_string('reviewthisattempt', 'quiz')));
        }
    }

/**
     * Displayed where there might normally be a review link, to explain why the
     * review is not available at this time.
     * @param string $message optional message explaining why the review is not possible.
     * @return string HTML to output.
     */
    public function no_review_message($message) {
        return html_writer::nonempty_tag('span', $message,
                array('class' => 'noreviewmessage'));
    }

/**
     * Returns the same as {@link quiz_num_attempt_summary()} but wrapped in a link
     * to the quiz reports.
     *
     * @param object $quiz the quiz object. Only $quiz->id is used at the moment.
     * @param object $cm the cm object. Only $cm->course, $cm->groupmode and $cm->groupingid
     * fields are used at the moment.
     * @param object $context the quiz context.
     * @param bool $returnzero if false (default), when no attempts have been made '' is returned
     * instead of 'Attempts: 0'.
     * @param int $currentgroup if there is a concept of current group where this method is being
     * called
     *         (e.g. a report) pass it in here. Default 0 which means no current group.
     * @return string HTML fragment for the link.
     */
    public function quiz_attempt_summary_link_to_reports($quiz, $cm, $context,
                                                          $returnzero = false, $currentgroup = 0) {
        global $CFG;
        $summary = quiz_num_attempt_summary($quiz, $cm, $returnzero, $currentgroup);
        if (!$summary) {
            return '';
        }

require_once($CFG->dirroot . '/mod/quiz/report/reportlib.php');
        $url = new moodle_url('/mod/quiz/report.php', array(
                'id' => $cm->id, 'mode' => quiz_report_default_report($context)));
        return html_writer::link($url, $summary);
    }

/**
     * Output a graph, or a message saying that GD is required.
     * @param moodle_url $url the URL of the graph.
     * @param string $title the title to display above the graph.
     * @return string HTML fragment for the graph.
     */
    public function graph(moodle_url $url, $title) {
        global $CFG;

$graph = html_writer::empty_tag('img', array('src' => $url, 'alt' => $title));

return $this->heading($title, 3) . html_writer::tag('div', $graph, array('class' => 'graph'));
    }

/**
     * Output the connection warning messages, which are initially hidden, and
     * only revealed by JavaScript if necessary.
     */
    public function connection_warning() {
        $options = array('filter' => false, 'newlines' => false);
        $warning = format_text(get_string('connectionerror', 'quiz'), FORMAT_MARKDOWN, $options);
        $ok = format_text(get_string('connectionok', 'quiz'), FORMAT_MARKDOWN, $options);
        return html_writer::tag('div', $warning, array('id' => 'connection-error', 'style' => 'display: none;', 'role' => 'alert')) .
                html_writer::tag('div', $ok, array('id' => 'connection-ok', 'style' => 'display: none;', 'role' => 'alert'));
    }
}

class mod_quiz_links_to_other_attempts implements renderable {
    /**
     * @var array string attempt number => url, or null for the current attempt.
     */
    public $links = array();
}

class mod_quiz_view_object {
    /** @var array $infomessages of messages with information to display about the quiz. */
    public $infomessages;
    /** @var array $attempts contains all the user's attempts at this quiz. */
    public $attempts;
    /** @var array $attemptobjs quiz_attempt objects corresponding to $attempts. */
    public $attemptobjs;
    /** @var quiz_access_manager $accessmanager contains various access rules. */
    public $accessmanager;
    /** @var bool $canreviewmine whether the current user has the capability to
     *       review their own attempts. */
    public $canreviewmine;
    /** @var bool $canedit whether the current user has the capability to edit the quiz. */
    public $canedit;
    /** @var moodle_url $editurl the URL for editing this quiz. */
    public $editurl;
    /** @var int $attemptcolumn contains the number of attempts done. */
    public $attemptcolumn;
    /** @var int $gradecolumn contains the grades of any attempts. */
    public $gradecolumn;
    /** @var int $markcolumn contains the marks of any attempt. */
    public $markcolumn;
    /** @var int $overallstats contains all marks for any attempt. */
    public $overallstats;
    /** @var string $feedbackcolumn contains any feedback for and attempt. */
    public $feedbackcolumn;
    /** @var string $timenow contains a timestamp in string format. */
    public $timenow;
    /** @var int $numattempts contains the total number of attempts. */
    public $numattempts;
    /** @var float $mygrade contains the user's final grade for a quiz. */
    public $mygrade;
    /** @var bool $moreattempts whether this user is allowed more attempts. */
    public $moreattempts;
    /** @var int $mygradeoverridden contains an overriden grade. */
    public $mygradeoverridden;
    /** @var string $gradebookfeedback contains any feedback for a gradebook. */
    public $gradebookfeedback;
    /** @var bool $unfinished contains 1 if an attempt is unfinished. */
    public $unfinished;
    /** @var object $lastfinishedattempt the last attempt from the attempts array. */
    public $lastfinishedattempt;
    /** @var array $preventmessages of messages telling the user why they can't
     *       attempt the quiz now. */
    public $preventmessages;
    /** @var string $buttontext caption for the start attempt button. If this is null, show no
     *      button, or if it is '' show a back to the course button. */
    public $buttontext;
    /** @var string $startattemptwarning alert to show the user before starting an attempt. */
    public $startattemptwarning;
    /** @var moodle_url $startattempturl URL to start an attempt. */
    public $startattempturl;
    /** @var moodle_url $startattempturl URL for any Back to the course button. */
    public $backtocourseurl;
    /** @var bool $showbacktocourse should we show a back to the course button? */
    public $showbacktocourse;
    /** @var bool whether the attempt must take place in a popup window. */
    public $popuprequired;
    /** @var array options to use for the popup window, if required. */
    public $popupoptions;
    /** @var bool $quizhasquestions whether the quiz has any questions. */
    public $quizhasquestions;
}

更改后文本

Open file

<?php
//Modified Moodle 2.7.2 /mod/quiz/renderer.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/>.

/**
 * Defines the renderer for the quiz module.
 *
 * @package   mod_quiz
 * @copyright 2011 The Open University
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

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

$output .= $this->review_next_navigation($attemptobj, $page, $lastpage);
        $output .= $this->footer();
        return $output;
    }

$output = '';
        $output .= $this->header();
        $output .= $this->review_summary_table($summarydata, 0);

if (!is_null($seq)) {
            $output .= $attemptobj->render_question_at_step($slot, $seq, true);
        } else {
            $output .= $attemptobj->render_question($slot, true);
        }

$output .= $this->close_window_button();
        $output .= $this->footer();
        return $output;
    }

return $summarydata;
    }

if ($rowdata['content'] instanceof renderable) {
                $content = $this->render($rowdata['content']);
            } else {
                $content = $rowdata['content'];
            }

$output .= html_writer::end_tag('tbody');
        $output .= html_writer::end_tag('table');
        return $output;
    }

$this->page->requires->js_init_call('M.mod_quiz.init_review_form', null, false,
                quiz_get_js_module());

return $output;
    }

} else {
            return html_writer::link($url, get_string('finishreview', 'quiz'));
        }
    }

/**
     * Return the HTML of the quiz timer.
     * @return string HTML content.
     */
    public function countdown_timer(quiz_attempt $attemptobj, $timenow) {

$output .= html_writer::tag('div', $panel->render_end_bits($this),
                array('class' => 'othernav'));

$this->page->requires->js_init_call('M.mod_quiz.nav.init', null, false,
                quiz_get_js_module());

return $output;
    }

if ($button->currentpage) {
            $classes[] = 'thispage';
            $attributes[] = get_string('onthispage', 'quiz');
        }

if (is_numeric($button->number)) {
            $qnostring = 'questionnonav';
        } else {
            $qnostring = 'questionnonavinfo';
        }

// Finish the form.
        $output .= html_writer::end_tag('div');
        $output .= html_writer::end_tag('form');

$output .= $this->connection_warning();

return $output;
    }

$output .= $this->box_end();
        $output .= $this->footer();
        return $output;
    }

/**
     * Generates the table of summarydata
     *
     * @param quiz_attempt $attemptobj
     * @param mod_quiz_display_options $displayoptions
     */
    public function summary_table($attemptobj, $displayoptions) {
        // Prepare the summary table header.
        $table = new html_table();
        $table->attributes['class'] = 'generaltable quizsummaryofattempt boxaligncenter';
		
		
		// Get the summary info for each question.
        $slots = $attemptobj->get_slots();
		
		//Make a copy of the $slots array into $slots_ques array, but the difference is that $slots_ques array contains only bona-fide questions, 
		//not description questions!
		//Frankie Kam, 29th April 2015
		//
		$slots_ques = array();

foreach ($slots as $slot) {
            if (!$attemptobj->is_real_question($slot)) {
			    //Is the current question a description question? Skip it and don't copy it inside $slots_ques array!
                continue;
            }
			//Make a copy of the question inside $slots_ques
			$slots_ques[] = $slot;
		}
		
		
		$MAXVAL = sizeof($slots_ques);
			
		$COLS=3;
		if ($MAXVAL % $COLS > 0)
			$nearest3 = $MAXVAL + ($COLS - $MAXVAL % $COLS); 
		else
			$nearest3 = $MAXVAL;
       		
		$ROWS = $nearest3/$COLS;

if($MAXVAL>2)
           $table->head = array(get_string('question', 'quiz'), get_string('status', 'quiz'), get_string('question', 'quiz'), get_string('status', 'quiz'), get_string('question', 'quiz'), get_string('status', 'quiz'));
		else if($MAXVAL==2)
		  	    $table->head = array(get_string('question', 'quiz'), get_string('status', 'quiz'), get_string('question', 'quiz'), get_string('status', 'quiz'));
		     else  if($MAXVAL==1)
			          $table->head = array(get_string('question', 'quiz'),get_string('status', 'quiz'));
					else if($MAXVAL<=0)
							$table->head = get_string('huh', 'what');
							
		
		//This makes the first column of question number links, aligned to theright
		//Frankie Kam, 29th April 2015
        //Original was: $table->align = array('left', 'left');
		$table->align = array('right', 'right','right', 'right', 'right', 'right');
        $table->size = array('', '');
        $markscolumn = $displayoptions->marks >= question_display_options::MARK_AND_MAX;
        if ($markscolumn) {
            $table->head[] = get_string('marks', 'quiz');
            $table->align[] = 'left';
            $table->size[] = '';
        }
		
			
        $table->data = array();

for($r = 1; $r <= $ROWS; $r++) 
		{

$column1 = '';
			 $column2 = '';
			 $column3 = '';
		
			 if($r+($nearest3/$COLS)*2 <= $MAXVAL)
			 {		
				$flag1 = '';
			    if ($attemptobj->is_real_question($slots_ques[$r-1])) {
				   if ($attemptobj->is_question_flagged($slots_ques[$r-1])) {
					   $flag1 = html_writer::empty_tag('img', array('src' => $this->pix_url('i/flagged'),
                        'alt' => get_string('flagged', 'question'), 'class' => 'questionflag icon-post'));
				   }
				   $column1 = html_writer::link($attemptobj->attempt_url($slots_ques[$r-1]), $attemptobj->get_question_number($slots_ques[$r-1]) . $flag1);
				}
				
			    if ($attemptobj->is_real_question($slots_ques[$r-1+($nearest3/$COLS)])) {
					$flag2 = '';
					if ($attemptobj->is_question_flagged($slots_ques[$r-1+($nearest3/$COLS)])) {
						$flag2 = html_writer::empty_tag('img', array('src' => $this->pix_url('i/flagged'),
							'alt' => get_string('flagged', 'question'), 'class' => 'questionflag icon-post'));
					}
					$column2 = html_writer::link($attemptobj->attempt_url($slots_ques[$r-1+($nearest3/$COLS)]), $attemptobj->get_question_number($slots_ques[$r-1+($nearest3/$COLS)]) . $flag2);
				}
				
				if ($attemptobj->is_real_question($slots_ques[$r-1+($nearest3/$COLS)*2])) {
					$flag3 = '';
					if ($attemptobj->is_question_flagged($slots_ques[$r-1+($nearest3/$COLS)*2])) {
						$flag3 = html_writer::empty_tag('img', array('src' => $this->pix_url('i/flagged'),
							'alt' => get_string('flagged', 'question'), 'class' => 'questionflag icon-post'));
					}
					$column3 = html_writer::link($attemptobj->attempt_url($slots_ques[$r-1+($nearest3/$COLS)*2]), $attemptobj->get_question_number($slots_ques[$r-1+($nearest3/$COLS)*2]) . $flag3);
				}
				
				if($attemptobj->get_question_status($slots_ques[$r-1], $displayoptions->correctness)=="Not yet answered")
				    $stylecolor1 = 'color:#C21D25';
				else
				    $stylecolor1 = 'color:black';
					
				if($attemptobj->get_question_status($slots_ques[$r-1+($nearest3/$COLS)], $displayoptions->correctness)=="Not yet answered")
				    $stylecolor2 = 'color:#C21D25';
				else
				    //$stylecolor2 = 'color:black; background-color:green';
					$stylecolor2 = 'color:black';

if($attemptobj->get_question_status($slots_ques[$r-1+($nearest3/$COLS)*2], $displayoptions->correctness)=="Not yet answered")
				    $stylecolor3 = 'color:#C21D25';
				else
				    $stylecolor3 = 'color:black';

$row = 
					array(
						$column1, 
						html_writer::div($attemptobj->get_question_status($slots_ques[$r-1], $displayoptions->correctness), reddy,array('style' => $stylecolor1)),
					    
						$column2, 
						html_writer::div($attemptobj->get_question_status($slots_ques[$r-1+($nearest3/$COLS)], $displayoptions->correctness), reddy,array('style' => $stylecolor2)),
					
						$column3, 
						html_writer::div($attemptobj->get_question_status($slots_ques[$r-1+($nearest3/$COLS)*2], $displayoptions->correctness), reddy,array('style' => $stylecolor3))
						
					);
			  }
			  else			 
			 if($r+($nearest3/$COLS) <= $MAXVAL)
			 {		
				$column1 = '';
				$column2 = '';
				
				if ($attemptobj->is_real_question($slots_ques[$r-1])) {
					$flag1 = '';
					if ($attemptobj->is_question_flagged($slots_ques[$r-1])) {
						$flag1 = html_writer::empty_tag('img', array('src' => $this->pix_url('i/flagged'),
							'alt' => get_string('flagged', 'question'), 'class' => 'questionflag icon-post'));
					}
					$column1 = html_writer::link($attemptobj->attempt_url($slots_ques[$r-1]), $attemptobj->get_question_number($slots_ques[$r-1]) . $flag1);
				}

if ($attemptobj->is_real_question($slots_ques[$r-1+($nearest3/$COLS)])) {
					$flag2 = '';
					if ($attemptobj->is_question_flagged($slots_ques[$r-1+($nearest3/$COLS)])) {
						$flag2 = html_writer::empty_tag('img', array('src' => $this->pix_url('i/flagged'),
							'alt' => get_string('flagged', 'question'), 'class' => 'questionflag icon-post'));
					}
					$column2 = html_writer::link($attemptobj->attempt_url($slots_ques[$r-1+($nearest3/$COLS)]), $attemptobj->get_question_number($slots_ques[$r-1+($nearest3/$COLS)]) . $flag2);
				}

if($attemptobj->get_question_status($slots_ques[$r-1], $displayoptions->correctness)=="Not yet answered")
				    $stylecolor1 = 'color:#C21D25';
				else
				    $stylecolor1 = 'color:black';
					
				if($attemptobj->get_question_status($slots_ques[$r-1+($nearest3/$COLS)], $displayoptions->correctness)=="Not yet answered")
				    $stylecolor2 = 'color:#C21D25';
				else
					$stylecolor2 = 'color:black';

$column1 = html_writer::link($attemptobj->attempt_url($slots_ques[$r-1]), $attemptobj->get_question_number($slots_ques[$r-1]) . $flag1);
				}

if($attemptobj->get_question_status($slots_ques[$r-1], $displayoptions->correctness)=="Not yet answered")
				    $stylecolor1 = 'color:#C21D25';
				else
				    $stylecolor1 = 'color:black';
				
				$row = 
					array(
						$column1, 
						html_writer::div($attemptobj->get_question_status($slots_ques[$r-1], $displayoptions->correctness), reddy,array('style' => $stylecolor1))
					);
			  }

if ($markscolumn) {
                $row[] = $attemptobj->get_question_mark($slots_ques[$r-1]);
            }
            $table->data[] = $row;
            $table->rowclasses[] = $attemptobj->get_question_state_class(
                    $slots_ques[$r-1], $displayoptions->correctness);
        }

// Print the summary table.
        $output = html_writer::table($table);

return $output;
    }
	
    /**
     * Creates any controls a the page should have.
     *
     * @param quiz_attempt $attemptobj
     */
    public function summary_page_controls($attemptobj) {
        $output = '';

} else if ($duedate) {
            $message = get_string('mustbesubmittedby', 'quiz', userdate($duedate));
        }

$output .= $this->countdown_timer($attemptobj, time());
        $output .= $this->container($message . $this->container(
                $this->render($button), 'controls'), 'submitbtns mdl-align');

return $output;
    }

if (!$viewobj->quizhasquestions) {
            $output .= $this->no_questions_message($viewobj->canedit, $viewobj->editurl);
        }

$output .= $this->access_messages($viewobj->preventmessages);

}

return $output;
    }

$button = new single_button($url, $buttontext);
        $button->class .= ' quizstartbuttondiv';

$warning = html_writer::tag('noscript', $this->heading(get_string('noscript', 'quiz')));

} else if ($startattemptwarning) {
            $button->add_action(new confirm_action($startattemptwarning, null,
                    get_string('startattempt', 'quiz')));
        }

return $this->render($button) . $warning;
    }

return $output;
    }

$output = '';

// Print quiz name and description.
        $output .= $this->heading(format_string($quiz->name));
        $output .= $this->quiz_intro($quiz, $cm);

// Output any access messages.
        if ($messages) {
            $output .= $this->box($this->access_messages($messages), 'quizinfo');
        }

return $this->box(format_module_intro('quiz', $quiz, $cm->id), 'generalbox', 'intro');
    }

/**
     * Generates the table heading.
     */
    public function view_table_heading() {
        return $this->heading(get_string('summaryofattempts', 'quiz'), 3);
    }

// Prepare table header.
        $table = new html_table();
        $table->attributes['class'] = 'generaltable quizattemptsummary';
        $table->head = array();
        $table->align = array();
        $table->size = array();
        if ($viewobj->attemptcolumn) {
            $table->head[] = get_string('attemptnumber', 'quiz');
            $table->align[] = 'center';
            $table->size[] = '';
        }
        $table->head[] = get_string('attemptstate', 'quiz');
        $table->align[] = 'left';
        $table->size[] = '';
        if ($viewobj->markcolumn) {
            $table->head[] = get_string('marks', 'quiz') . ' / ' .
                    quiz_format_grade($quiz, $quiz->sumgrades);
            $table->align[] = 'center';
            $table->size[] = '';
        }
        if ($viewobj->gradecolumn) {
            $table->head[] = get_string('grade') . ' / ' .
                    quiz_format_grade($quiz, $quiz->grade);
            $table->align[] = 'center';
            $table->size[] = '';
        }
        if ($viewobj->canreviewmine) {
            $table->head[] = get_string('review', 'quiz');
            $table->align[] = 'center';
            $table->size[] = '';
        }
        if ($viewobj->feedbackcolumn) {
            $table->head[] = get_string('feedback', 'quiz');
            $table->align[] = 'left';
            $table->size[] = '';
        }

// One row for each attempt.
        foreach ($viewobj->attemptobjs as $attemptobj) {
            $attemptoptions = $attemptobj->get_display_options(true);
            $row = array();

$row[] = $this->attempt_state($attemptobj);

// Ouside the if because we may be showing feedback but not grades.
            $attemptgrade = quiz_rescale_grade($attemptobj->get_sum_marks(), $quiz, false);

if ($viewobj->gradecolumn) {
                if ($attemptoptions->marks >= question_display_options::MARK_AND_MAX &&
                        $attemptobj->is_finished()) {

$row[] = quiz_format_grade($quiz, $attemptgrade);
                } else {
                    $row[] = '';
                }
            }

if ($viewobj->canreviewmine) {
                $row[] = $viewobj->accessmanager->make_review_link($attemptobj->get_attempt(),
                        $attemptoptions, $this);
            }

$output = '';
        $output .= $this->view_table_heading();
        $output .= html_writer::table($table);
        return $output;
    }

case quiz_attempt::ABANDONED:
                return get_string('stateabandoned', 'quiz');
        }
    }

if ($viewobj->mygradeoverridden) {

if ($resultinfo) {
            $output .= $this->box($resultinfo, 'generalbox', 'feedback');
        }
        return $output;
    }

} else {
            return html_writer::link($url, get_string('review', 'quiz'),
                    array('title' => get_string('reviewthisattempt', 'quiz')));
        }
    }

$graph = html_writer::empty_tag('img', array('src' => $url, 'alt' => $title));

return $this->heading($title, 3) . html_writer::tag('div', $graph, array('class' => 'graph'));
    }

class mod_quiz_links_to_other_attempts implements renderable {
    /**
     * @var array string attempt number => url, or null for the current attempt.
     */
    public $links = array();
}