/**
* Alternative rendering of front page news, called from layout/faux_site_index.php which
* replaces the standard news output with this.
*
* @return string
*/
public function site_frontpage_news()
{
global $CFG, $SITE;
require_once $CFG->dirroot . '/mod/forum/lib.php';
if (!($forum = forum_get_course_forum($SITE->id, 'news'))) {
print_error('cannotfindorcreateforum', 'forum');
}
$cm = get_coursemodule_from_instance('forum', $forum->id, $SITE->id, false, MUST_EXIST);
$context = \context_module::instance($cm->id, MUST_EXIST);
$output = html_writer::start_tag('div', array('id' => 'site-news-forum', 'class' => 'clearfix'));
$output .= $this->heading(format_string($forum->name, true, array('context' => $context)));
$groupmode = groups_get_activity_groupmode($cm, $SITE);
$currentgroup = groups_get_activity_group($cm);
if (!($discussions = forum_get_discussions($cm, 'p.modified DESC', true, null, $SITE->newsitems, false, -1, $SITE->newsitems))) {
$output .= html_writer::tag('div', '(' . get_string('nonews', 'forum') . ')', array('class' => 'forumnodiscuss'));
if (forum_user_can_post_discussion($forum, $currentgroup, $groupmode, $cm, $context)) {
$output .= html_writer::link(new moodle_url('/mod/forum/post.php', array('forum' => $forum->id)), get_string('addanewtopic', 'forum'), array('class' => 'btn btn-primary'));
} else {
// No news and user cannot edit, so return nothing.
return '';
}
return $output . '</div>';
}
$output .= html_writer::start_div('', array('id' => 'news-articles'));
foreach ($discussions as $discussion) {
if (!forum_user_can_see_discussion($forum, $discussion, $context)) {
continue;
}
$message = file_rewrite_pluginfile_urls($discussion->message, 'pluginfile.php', $context->id, 'mod_forum', 'post', $discussion->id);
$imagestyle = '';
$imgarr = \theme_snap\local::extract_first_image($message);
if ($imgarr) {
$imageurl = s($imgarr['src']);
$imagestyle = " style=\"background-image:url('{$imageurl}')\"";
}
$name = format_string($discussion->name, true, array('context' => $context));
$date = userdate($discussion->timemodified, get_string('strftimedatetime', 'langconfig'));
$readmorebtn = "<a class='btn btn-default toggle' href='" . $CFG->wwwroot . "/mod/forum/discuss.php?d=" . $discussion->discussion . "'>" . get_string('readmore', 'theme_snap') . "</a>";
$preview = '';
$newsimage = '';
if (!$imagestyle) {
$preview = html_to_text($message, 0, false);
$preview = "<div class='news-article-preview'><p>" . shorten_text($preview, 200) . "</p>\n <p class='text-right'>" . $readmorebtn . "</p></div>";
} else {
$newsimage = '<div class="news-article-image toggle"' . $imagestyle . ' title="' . get_string('readmore', 'theme_snap') . '"></div>';
}
$close = get_string('close', 'theme_snap');
$output .= <<<HTML
<div class="news-article clearfix">
{$newsimage}
<div class="news-article-inner">
<div class="news-article-content">
<h3 class='toggle'><a href="{$CFG->wwwroot}/mod/forum/discuss.php?d={$discussion->discussion}">{$name}</a></h3>
<em class="news-article-date">{$date}</em>
</div>
</div>
{$preview}
<div class="news-article-message" tabindex="-1">
{$message}
<div><hr><a class="snap-action-icon toggle" href="#">
<i class="icon icon-close"></i><small>{$close}</small></a></div>
</div>
</div>
HTML;
}
$actionlinks = html_writer::link(new moodle_url('/mod/forum/view.php', array('id' => $cm->id)), get_string('morenews', 'theme_snap'), array('class' => 'btn btn-default'));
if (forum_user_can_post_discussion($forum, $currentgroup, $groupmode, $cm, $context)) {
$actionlinks .= html_writer::link(new moodle_url('/mod/forum/post.php', array('forum' => $forum->id)), get_string('addanewtopic', 'forum'), array('class' => 'btn btn-primary'));
}
$output .= html_writer::end_div();
$output .= "<br><div class='text-center'>{$actionlinks}</div>";
$output .= html_writer::end_tag('div');
return $output;
}
/**
* Get page module html
* @param $mod
* @return string
*/
protected function mod_page_html($mod)
{
if (!$mod->uservisible) {
return "";
}
global $DB;
$sql = "SELECT * FROM {course_modules} cm\n JOIN {page} p ON p.id = cm.instance\n WHERE cm.id = ?";
$page = $DB->get_record_sql($sql, array($mod->id));
$context = context_module::instance($mod->id);
$formatoptions = new stdClass();
$formatoptions->noclean = true;
$formatoptions->overflowdiv = true;
$formatoptions->context = $context;
// Make sure we have some summary/extract text for the course page.
if (!empty($page->intro)) {
$page->summary = file_rewrite_pluginfile_urls($page->intro, 'pluginfile.php', $context->id, 'mod_page', 'intro', null);
$page->summary = format_text($page->summary, $page->introformat, $formatoptions);
} else {
$preview = html_to_text($page->content, 0, false);
$page->summary = shorten_text($preview, 200);
}
$content = file_rewrite_pluginfile_urls($page->content, 'pluginfile.php', $context->id, 'mod_page', 'content', $page->revision);
$content = format_text($content, $page->contentformat, $formatoptions);
$imgarr = \theme_snap\local::extract_first_image($content);
$thumbnail = '';
if ($imgarr) {
$img = html_writer::img($imgarr['src'], $imgarr['alt']);
$thumbnail = "<div class=summary-figure>{$img}</div>";
}
$readmore = get_string('readmore', 'theme_snap');
$close = get_string('close', 'theme_snap');
$o = "\n {$thumbnail}\n <div class='summary-text'>\n {$page->summary}\n <p><a class='pagemod-readmore' href='{$mod->url}'>{$readmore}</a></p>\n </div>\n\n <div class=pagemod-content tabindex='-1'>\n {$content}\n <div><hr><a class='snap-action-icon' href='#'>\n <i class='icon icon-office-52'></i><small>{$close}</small></a></div>\n </div>";
return $o;
}
public function test_extract_first_image()
{
$actual = local::extract_first_image('no image here');
$this->assertFalse($actual);
$html = '<img src="http://www.example.com/image.jpg" alt="example image">';
$actual = local::extract_first_image($html);
$this->assertSame('http://www.example.com/image.jpg', $actual['src']);
$this->assertSame('example image', $actual['alt']);
}
/**
* Get page module html
* @param cm_info $mod
* @return string
*/
protected function mod_page_html(cm_info $mod)
{
if (!$mod->uservisible) {
return "";
}
$page = \theme_snap\local::get_page_mod($mod);
$imgarr = \theme_snap\local::extract_first_image($page->content);
$thumbnail = '';
if ($imgarr) {
$img = html_writer::img($imgarr['src'], $imgarr['alt']);
$thumbnail = "<div class=summary-figure>{$img}</div>";
}
$readmore = get_string('readmore', 'theme_snap');
$close = get_string('close', 'theme_snap');
// Identify content elements which should force an AJAX lazy load.
$elcontentblist = ['iframe', 'video', 'object', 'embed'];
$content = $page->content;
$lazyload = false;
foreach ($elcontentblist as $el) {
if (stripos($content, '<' . $el) !== false) {
$content = '';
// Don't include the content as it is likely to slow the page load down considerably.
$lazyload = true;
}
}
$contentloaded = !$lazyload ? 1 : 0;
$o = "\n {$thumbnail}\n <div class='summary-text'>\n {$page->summary}\n <p><a class='pagemod-readmore' href='{$mod->url}' data-pagemodcontext='{$mod->context->id}'>{$readmore}</a></p>\n </div>\n\n <div class=pagemod-content tabindex='-1' data-content-loaded={$contentloaded}>\n {$content}\n <div><hr><a class='snap-action-icon' href='#'>\n <i class='icon icon-office-52'></i><small>{$close}</small></a></div>\n </div>";
return $o;
}
