piwigo/include/functions_html.inc.php
2006-10-31 02:48:39 +00:00

613 lines
15 KiB
PHP

<?php
// +-----------------------------------------------------------------------+
// | PhpWebGallery - a PHP based picture gallery |
// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
// +-----------------------------------------------------------------------+
// | branch : BSF (Best So Far)
// | last update : $Date$
// | last modifier : $Author$
// | revision : $Revision$
// +-----------------------------------------------------------------------+
// | 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 |
// | |
// | 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. |
// | |
// | You should have received a copy of the GNU General Public License |
// | along with this program; if not, write to the Free Software |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA. |
// +-----------------------------------------------------------------------+
function get_icon($date)
{
global $page, $user, $conf, $lang;
if (empty($date))
{
$date = 'NULL';
}
if (isset($page['get_icon_cache'][$date]))
{
return $page['get_icon_cache'][$date];
}
if (!preg_match('/^(\d{4})-(\d{2})-(\d{2})/', $date, $matches))
{
// date can be empty, no icon to display
$page['get_icon_cache'][$date] = '';
return $page['get_icon_cache'][$date];
}
list($devnull, $year, $month, $day) = $matches;
$unixtime = mktime( 0, 0, 0, $month, $day, $year );
if ($unixtime === false // PHP 5.1.0 and above
or $unixtime === -1) // PHP prior to 5.1.0
{
$page['get_icon_cache'][$date] = '';
return $page['get_icon_cache'][$date];
}
$diff = time() - $unixtime;
$day_in_seconds = 24*60*60;
$output = '';
$title = $lang['recent_image'].'&nbsp;';
if ( $diff < $user['recent_period'] * $day_in_seconds )
{
$icon_url = get_themeconf('icon_dir').'/recent.png';
$title .= $user['recent_period'];
$title .= '&nbsp;'.$lang['days'];
$size = getimagesize( PHPWG_ROOT_PATH.$icon_url );
$icon_url = get_root_url().$icon_url;
$output = '<img title="'.$title.'" src="'.$icon_url.'" class="icon" style="border:0;';
$output.= 'height:'.$size[1].'px;width:'.$size[0].'px" alt="(!)" />';
}
$page['get_icon_cache'][$date] = $output;
return $page['get_icon_cache'][$date];
}
function create_navigation_bar(
$url, $nb_element, $start, $nb_element_page, $clean_url = false
)
{
global $lang, $conf;
$pages_around = $conf['paginate_pages_around'];
$start_str = $clean_url ? '/start-' :
( ( strstr($url, '?')===false ? '?':'&amp;') . 'start=' );
$navbar = '';
// current page detection
if (!isset($start)
or !is_numeric($start)
or (is_numeric($start) and $start < 0))
{
$start = 0;
}
// navigation bar useful only if more than one page to display !
if ($nb_element > $nb_element_page)
{
// current page and last page
$cur_page = ceil($start / $nb_element_page) + 1;
$maximum = ceil($nb_element / $nb_element_page);
// link to first page ?
if ($cur_page != 1)
{
$navbar.=
'<a href="'.$url.'" rel="start">'
.$lang['first_page']
.'</a>';
}
else
{
$navbar.= $lang['first_page'];
}
$navbar.= ' | ';
// link on previous page ?
if ($start != 0)
{
$previous = $start - $nb_element_page;
$navbar.=
'<a href="'
.$url.($previous > 0 ? $start_str.$previous : '')
.'" rel="prev">'
.$lang['previous_page']
.'</a>';
}
else
{
$navbar.= $lang['previous_page'];
}
$navbar.= ' |';
if ($cur_page > $pages_around + 1)
{
$navbar.= '&nbsp;<a href="'.$url.'">1</a>';
if ($cur_page > $pages_around + 2)
{
$navbar.= ' ...';
}
}
// inspired from punbb source code
for ($i = $cur_page - $pages_around, $stop = $cur_page + $pages_around + 1;
$i < $stop;
$i++)
{
if ($i < 1 or $i > $maximum)
{
continue;
}
else if ($i != $cur_page)
{
$temp_start = ($i - 1) * $nb_element_page;
$navbar.=
'&nbsp;'
.'<a href="'.$url
.($temp_start > 0 ? $start_str.$temp_start : '')
.'">'
.$i
.'</a>';
}
else
{
$navbar.=
'&nbsp;'
.'<span class="pageNumberSelected">'
.$i
.'</span>';
}
}
if ($cur_page < ($maximum - $pages_around))
{
$temp_start = ($maximum - 1) * $nb_element_page;
if ($cur_page < ($maximum - $pages_around - 1))
{
$navbar.= ' ...';
}
$navbar.= ' <a href="'.$url.$start_str.$temp_start.'">'.$maximum.'</a>';
}
$navbar.= ' | ';
// link on next page ?
if ($nb_element > $nb_element_page
and $start + $nb_element_page < $nb_element)
{
$next = $start + $nb_element_page;
$navbar.=
'<a href="'.$url.$start_str.$next.'" rel="next">'
.$lang['next_page']
.'</a>';
}
else
{
$navbar.= $lang['next_page'];
}
$navbar.= ' | ';
// link to last page ?
if ($cur_page != $maximum)
{
$temp_start = ($maximum - 1) * $nb_element_page;
$navbar.=
'<a href="'.$url.$start_str.$temp_start.'" rel="last">'
.$lang['last_page']
.'</a>';
}
else
{
$navbar.= $lang['last_page'];
}
}
return $navbar;
}
//
// Pick a language, any language ...
//
function language_select($default, $select_name = "language")
{
$available_lang = get_languages();
$lang_select = '<select name="' . $select_name . '">';
foreach ($available_lang as $code => $displayname)
{
$selected = ( strtolower($default) == strtolower($code) ) ? ' selected="selected"' : '';
$lang_select .= '<option value="' . $code . '"' . $selected . '>' . ucwords($displayname) . '</option>';
}
$lang_select .= '</select>';
return $lang_select;
}
/**
* returns the list of categories as a HTML string
*
* categories string returned contains categories as given in the input
* array $cat_informations. $cat_informations array must be an association
* of {category_id => category_name}. If url input parameter is null,
* returns only the categories name without links.
*
* @param array cat_informations
* @param string url
* @param boolean replace_space
* @return string
*/
function get_cat_display_name($cat_informations,
$url = '',
$replace_space = true)
{
global $conf;
$output = '';
$is_first = true;
foreach ($cat_informations as $id => $name)
{
if ($is_first)
{
$is_first = false;
}
else
{
$output.= $conf['level_separator'];
}
if ( !isset($url) )
{
$output.= $name;
}
elseif ($url == '')
{
$output.= '<a class=""';
$output.= ' href="'
.make_index_url(
array(
'category'=>$id,
'cat_name'=>$name
)
)
.'">';
$output.= $name.'</a>';
}
else
{
$output.= '<a class=""';
$output.= ' href="'.PHPWG_ROOT_PATH.$url.$id.'">';
$output.= $name.'</a>';
}
}
if ($replace_space)
{
return replace_space($output);
}
else
{
return $output;
}
}
/**
* returns the list of categories as a HTML string, with cache of names
*
* categories string returned contains categories as given in the input
* array $cat_informations. $uppercats is the list of category ids to
* display in the right order. If url input parameter is empty, returns only
* the categories name without links.
*
* @param string uppercats
* @param string url
* @param boolean replace_space
* @return string
*/
function get_cat_display_name_cache($uppercats,
$url = '',
$replace_space = true)
{
global $cat_names, $conf;
if (!isset($cat_names))
{
$query = '
SELECT id,name
FROM '.CATEGORIES_TABLE.'
;';
$result = pwg_query($query);
while ($row = mysql_fetch_array($result))
{
$cat_names[$row['id']] = $row['name'];
}
}
$output = '';
$is_first = true;
foreach (explode(',', $uppercats) as $category_id)
{
$name = $cat_names[$category_id];
if ($is_first)
{
$is_first = false;
}
else
{
$output.= $conf['level_separator'];
}
if ( !isset($url) )
{
$output.= $name;
}
elseif ($url == '')
{
$output.= '
<a class=""
href="'
.make_index_url(
array(
'category'=>$category_id,
'cat_name'=>$name
)
)
.'">'.$name.'</a>';
}
else
{
$output.= '
<a class=""
href="'.PHPWG_ROOT_PATH.$url.$category_id.'">'.$name.'</a>';
}
}
if ($replace_space)
{
return replace_space($output);
}
else
{
return $output;
}
}
/**
* returns the HTML code for a category item in the menu (for the main page)
*
* HTML code generated uses logical list tags ul and each category is an
* item li. The paramter given is the category informations as an array,
* used keys are : id, name, nb_images, date_last
*
* @param array categories
* @return string
*/
function get_html_menu_category($categories)
{
global $page, $lang;
$ref_level = 0;
$level = 0;
$menu = '';
// $page_cat value remains 0 for special sections
$page_cat = 0;
if (isset($page['category']))
{
$page_cat = $page['category'];
}
foreach ($categories as $category)
{
$level = substr_count($category['global_rank'], '.') + 1;
if ($level > $ref_level)
{
$menu.= "\n<ul>";
}
else if ($level == $ref_level)
{
$menu.= "\n</li>";
}
else if ($level < $ref_level)
{
// we may have to close more than one level at the same time...
$menu.= "\n</li>";
$menu.= str_repeat("\n</ul></li>",($ref_level-$level));
}
$ref_level = $level;
$menu.= "\n\n".'<li';
if ($category['id'] == $page_cat)
{
$menu.= ' class="selected"';
}
$menu.= '>';
$url = make_index_url(
array(
'category'=>$category['id'],
'cat_name'=>$category['name']
)
);
$menu.= "\n".'<a href="'.$url.'"';
if ($page_cat != 0
and $category['id'] == $page['cat_id_uppercat'])
{
$menu.= ' rel="up"';
}
$menu.= '>'.$category['name'].'</a>';
if ($category['nb_images'] > 0)
{
$menu.= "\n".'<span class="menuInfoCat"';
$menu.= ' title="'.$category['nb_images'];
$menu.= ' '.$lang['images_available'].'">';
$menu.= '['.$category['nb_images'].']';
$menu.= '</span>';
$menu.= get_icon($category['date_last']);
}
}
$menu.= str_repeat("\n</li></ul>",($level));
return $menu;
}
/**
* returns HTMLized comment contents retrieved from database
*
* newlines becomes br tags, _word_ becomes underline, /word/ becomes
* italic, *word* becomes bolded
*
* @param string content
* @return string
*/
function parse_comment_content($content)
{
$pattern = '/(https?:\/\/\S*)/';
$replacement = '<a href="$1" rel="nofollow">$1</a>';
$content = preg_replace($pattern, $replacement, $content);
$content = nl2br($content);
// replace _word_ by an underlined word
$pattern = '/\b_(\S*)_\b/';
$replacement = '<span style="text-decoration:underline;">$1</span>';
$content = preg_replace($pattern, $replacement, $content);
// replace *word* by a bolded word
$pattern = '/\b\*(\S*)\*\b/';
$replacement = '<span style="font-weight:bold;">$1</span>';
$content = preg_replace($pattern, $replacement, $content);
// replace /word/ by an italic word
$pattern = "/\/(\S*)\/(\s)/";
$replacement = '<span style="font-style:italic;">$1$2</span>';
$content = preg_replace($pattern, $replacement, $content);
$content = '<div>'.$content.'</div>';
return $content;
}
function get_cat_display_name_from_id($cat_id,
$url = '',
$replace_space = true)
{
$cat_info = get_cat_info($cat_id);
return get_cat_display_name($cat_info['name'], $url, $replace_space);
}
/**
* Returns an HTML list of tags. It can be a multi select field or a list of
* checkboxes.
*
* @param string HTML field name
* @param array selected tag ids
* @return array
*/
function get_html_tag_selection(
$tags,
$fieldname,
$selecteds = array(),
$forbidden_categories = null
)
{
global $conf;
if (count ($tags) == 0 )
{
return '';
}
$output = '<ul class="tagSelection">';
foreach ($tags as $tag)
{
$output.=
'<li>'
.'<label>'
.'<input type="checkbox" name="'.$fieldname.'[]"'
.' value="'.$tag['tag_id'].'"'
;
if (in_array($tag['tag_id'], $selecteds))
{
$output.= ' checked="checked"';
}
$output.=
' />'
.' '. $tag['name']
.'</label>'
.'</li>'
."\n"
;
}
$output.= '</ul>';
return $output;
}
function name_compare($a, $b)
{
return strcmp(strtolower($a['name']), strtolower($b['name']));
}
/**
* exits the current script (either exit or redirect)
*/
function access_denied()
{
global $user, $lang;
$login_url =
get_root_url().'identification.php?redirect='
.urlencode(urlencode($_SERVER['REQUEST_URI']));
if ( isset($user['is_the_guest']) and !$user['is_the_guest'] )
{
echo '<div style="text-align:center;">'.$lang['access_forbiden'].'<br />';
echo '<a href="'.get_root_url().'identification.php">'.$lang['identification'].'</a>&nbsp;';
echo '<a href="'.make_index_url().'">'.$lang['home'].'</a></div>';
exit();
}
else
{
header('HTTP/1.1 401 Authorization required');
header('Status: 401 Authorization required');
redirect($login_url);
}
}
/**
* exits the current script with 404 code when a page cannot be found
* @param string msg a message to display
* @param string alternate_url redirect to this url
*/
function page_not_found($msg, $alternate_url=null)
{
header('HTTP/1.1 404 Not found');
header('Status: 404 Not found');
if ($alternate_url==null)
$alternate_url = make_index_url();
redirect( $alternate_url,
'<div style="text-align:left; margin-left:5em;margin-bottom:5em;">
<h1 style="text-align:left; font-size:36px;">Page not found</h1><br/>'
.$msg.'</div>',
5 );
}
?>