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<?php
/*
Question2Answer (c) Gideon Greenspan
http://www.question2answer.org/
File: qa-plugin/mouseover-layer/qa-mouseover-layer.php
Version: See define()s at top of qa-include/qa-base.php
Description: Theme layer class for mouseover layer plugin
This program 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 2
of the License, or (at your option) any later version.
This program 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.
More about this license: http://www.question2answer.org/license.php
*/
class qa_html_theme_layer extends qa_html_theme_base {
public function q_list($q_list)
{
if (!empty($q_list['qs']) && qa_opt('mouseover_content_on')) { // first check it is not an empty list and the feature is turned on
// Collect the question ids of all items in the question list (so we can do this in one DB query)
$postids = array();
foreach ($q_list['qs'] as $question) {
if (isset($question['raw']['postid']))
$postids[] = $question['raw']['postid'];
}
if (!empty($postids)) {
// Retrieve the content for these questions from the database and put into an array fetching
// the minimal amount of characters needed to determine the string should be shortened or not
$maxlength = qa_opt('mouseover_content_max_len');
$result = qa_db_query_sub('SELECT postid, LEFT(content, #) content, format FROM ^posts WHERE postid IN (#)', $maxlength + 1, $postids);
$postinfo = qa_db_read_all_assoc($result, 'postid');
// Get the regular expression fragment to use for blocked words and the maximum length of content to show
$blockwordspreg = qa_get_block_words_preg();
// Now add the popup to the title for each question
foreach ($q_list['qs'] as $index => $question) {
if (isset($postinfo[$question['raw']['postid']])) {
$thispost = $postinfo[$question['raw']['postid']];
$text = qa_viewer_text($thispost['content'], $thispost['format'], array('blockwordspreg' => $blockwordspreg));
$text = qa_shorten_string_line($text, $maxlength);
$title = isset($question['title']) ? $question['title'] : '';
$q_list['qs'][$index]['title'] = sprintf('<span title="%s">%s</span>', qa_html($text), $title);
}
}
}
}
qa_html_theme_base::q_list($q_list); // call back through to the default function
}
}
/*
Omit PHP closing tag to help avoid accidental output
*/