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Diffstat (limited to '')
| -rw-r--r-- | BSF/include/calendar_base.class.php | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/BSF/include/calendar_base.class.php b/BSF/include/calendar_base.class.php new file mode 100644 index 000000000..bd3d2b180 --- /dev/null +++ b/BSF/include/calendar_base.class.php @@ -0,0 +1,351 @@ +<?php +// +-----------------------------------------------------------------------+ +// | Piwigo - a PHP based picture gallery | +// +-----------------------------------------------------------------------+ +// | Copyright(C) 2008 Piwigo Team http://piwigo.org | +// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net | +// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick | +// +-----------------------------------------------------------------------+ +// | 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. | +// +-----------------------------------------------------------------------+ + +/** + * Base class for monthly and weekly calendar styles + */ +class CalendarBase +{ + // db column on which this calendar works + var $date_field; + // used for queries (INNER JOIN or normal) + var $inner_sql; + // + var $calendar_levels; + + /** + * Initialize the calendar + * @param string inner_sql used for queries (INNER JOIN or normal) + */ + function initialize($inner_sql) + { + global $page; + if ($page['chronology_field']=='posted') + { + $this->date_field = 'date_available'; + } + else + { + $this->date_field = 'date_creation'; + } + $this->inner_sql = $inner_sql; + } + + function get_display_name() + { + global $conf, $page; + $res = ''; + + for ($i=0; $i<count($page['chronology_date']); $i++) + { + $res .= $conf['level_separator']; + if ( isset($page['chronology_date'][$i+1]) ) + { + $chronology_date = array_slice($page['chronology_date'],0, $i+1); + $url = duplicate_index_url( + array( 'chronology_date'=>$chronology_date ), + array( 'start' ) + ); + $res .= + '<a href="'.$url.'">' + .$this->get_date_component_label($i, $page['chronology_date'][$i]) + .'</a>'; + } + else + { + $res .= + '<span class="calInHere">' + .$this->get_date_component_label($i, $page['chronology_date'][$i]) + .'</span>'; + } + } + return $res; + } + +//--------------------------------------------------------- private members --- + /** + * Returns a display name for a date component optionally using labels + */ + function get_date_component_label($level, $date_component) + { + $label = $date_component; + if (isset($this->calendar_levels[$level]['labels'][$date_component])) + { + $label = $this->calendar_levels[$level]['labels'][$date_component]; + } + elseif ('any' === $date_component ) + { + $label = l10n('calendar_any'); + } + return $label; + } + + /** + * Gets a nice display name for a date to be shown in previos/next links. + */ + function get_date_nice_name($date) + { + $date_components = explode('-', $date); + $res = ''; + for ($i=count($date_components)-1; $i>=0; $i--) + { + if ('any' !== $date_components[$i]) + { + $label = $this->get_date_component_label($i, $date_components[$i] ); + if ( $res!='' ) + { + $res .= ' '; + } + $res .= $label; + } + } + return $res; + } + + /** + * Creates a calendar navigation bar. + * + * @param array date_components + * @param array items - hash of items to put in the bar (e.g. 2005,2006) + * @param string class_prefix - html class attribute prefix for span elements + * @param bool show_any - adds any link to the end of the bar + * @param bool show_empty - shows all labels even those without items + * @param array labels - optional labels for items (e.g. Jan,Feb,...) + * @return string the navigation bar + */ + function get_nav_bar_from_items($date_components, $items, + $class_prefix, $show_any, + $show_empty=false, $labels=null) + { + global $conf, $page; + + $nav_bar = ''; + + if ($conf['calendar_show_empty'] and $show_empty and !empty($labels) ) + { + foreach ($labels as $item => $label) + { + if ( ! isset($items[$item]) ) + { + $items[$item] = -1; + } + } + ksort($items); + } + + foreach ($items as $item => $nb_images) + { + $label = $item; + if (isset($labels[$item])) + { + $label = $labels[$item]; + } + if ($nb_images==-1) + { + $nav_bar .= '<span class="'.$class_prefix.'Empty">'; + $nav_bar .= $label; + } + else + { + $nav_bar .= '<span class="'.$class_prefix.'">'; + $url = duplicate_index_url( + array('chronology_date'=>array_merge($date_components,array($item))), + array( 'start' ) + ); + $nav_bar .= '<a href="'.$url.'">'; + $nav_bar .= $label; + $nav_bar .= '</a>'; + } + if ($nb_images > 0) + { + $nav_bar .= '('.$nb_images.')'; + } + $nav_bar.= '</span>'; + } + + if ($conf['calendar_show_any'] and $show_any and count($items)>1 and + count($date_components)<count($this->calendar_levels)-1 ) + { + $label = l10n('calendar_any'); + $nav_bar .= '<span class="'.$class_prefix.'">'; + $url = duplicate_index_url( + array('chronology_date'=>array_merge($date_components,array('any'))), + array( 'start' ) + ); + $nav_bar .= '<a href="'.$url.'">'; + $nav_bar .= $label; + $nav_bar .= '</a>'; + $nav_bar.= '</span>'; + } + return $nav_bar; + } + + /** + * Creates a calendar navigation bar for a given level. + * + * @param int level - the level (0-year,1-month/week,2-day) + * @return void + */ + function build_nav_bar($level, $labels=null) + { + global $template, $conf, $page; + + $query = ' +SELECT DISTINCT('.$this->calendar_levels[$level]['sql'] + .') as period'; + $query.= $this->inner_sql; + $query.= $this->get_date_where($level); + $query.= ' + GROUP BY period +;'; + + $level_items = array(); + $result = pwg_query($query); + while ($row = mysql_fetch_array($result)) + { + $level_items[$row['period']] = 0; + } + + if ( count($level_items)==1 and + count($page['chronology_date'])<count($this->calendar_levels)-1) + { + if ( ! isset($page['chronology_date'][$level]) ) + { + list($key) = array_keys($level_items); + $page['chronology_date'][$level] = (int)$key; + + if ( $level<count($page['chronology_date']) and + $level!=count($this->calendar_levels)-1 ) + { + return; + } + } + } + + $dates = $page['chronology_date']; + while ($level<count($dates)) + { + array_pop($dates); + } + + $nav_bar = $this->get_nav_bar_from_items( + $dates, + $level_items, + 'calItem', + true, + true, + isset($labels) ? $labels : $this->calendar_levels[$level]['labels'] + ); + + $template->append( + 'chronology_navigation_bars', + array( + 'CONTENT' => $nav_bar, + ) + ); + } + + /** + * Assigns the next/previous link to the template with regards to + * the currently choosen date. + */ + function build_next_prev() + { + global $template, $page; + $prev = $next =null; + if ( empty($page['chronology_date']) ) + return; + $query = 'SELECT CONCAT_WS("-"'; + for ($i=0; $i<count($page['chronology_date']); $i++) + { + if ( 'any' === $page['chronology_date'][$i] ) + { + $query .= ','.'"any"'; + } + else + { + $query .= ','.$this->calendar_levels[$i]['sql']; + } + } + $current = implode('-', $page['chronology_date'] ); + + $query.=') as period' . $this->inner_sql .' +AND ' . $this->date_field . ' IS NOT NULL +GROUP BY period'; + + $upper_items = array_from_query( $query, 'period'); + + usort($upper_items, 'version_compare'); + $upper_items_rank = array_flip($upper_items); + if ( !isset($upper_items_rank[$current]) ) + { + array_push($upper_items, $current);// just in case (external link) + usort($upper_items, 'version_compare'); + $upper_items_rank = array_flip($upper_items); + } + $current_rank = $upper_items_rank[$current]; + + $tpl_var = array(); + + if ( $current_rank>0 ) + { // has previous + $prev = $upper_items[$current_rank-1]; + $chronology_date = explode('-', $prev); + $tpl_var['previous'] = + array( + 'LABEL' => $this->get_date_nice_name($prev), + 'URL' => duplicate_index_url( + array('chronology_date'=>$chronology_date), array('start') + ) + ); + } + + if ( $current_rank < count($upper_items)-1 ) + { // has next + $next = $upper_items[$current_rank+1]; + $chronology_date = explode('-', $next); + $tpl_var['next'] = + array( + 'LABEL' => $this->get_date_nice_name($next), + 'URL' => duplicate_index_url( + array('chronology_date'=>$chronology_date), array('start') + ) + ); + } + + if ( !empty($tpl_var) ) + { + $existing = & $template->get_template_vars('chronology_navigation_bars'); + if ( !empty($existing) ) + { + $existing[ sizeof($existing)-1 ] = + array_merge( $existing[ sizeof($existing)-1 ], $tpl_var); + } + else + { + $template->append( 'chronology_navigation_bars', $tpl_var ); + } + } + } +} +?> |