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<?php
class SiblingNav
{
function __construct(modX & $modx, array $config = array())
{
$this->modx = &$modx;
$corePath = $this->modx->getOption('siblingnav.core_path', $config, $this->modx->getOption('core_path') . 'components/siblingnav/');
$assetsUrl = $this->modx->getOption('siblingnav.assets_url', $config, $this->modx->getOption('assets_url') . 'components/siblingnav/');
$default['rowTpl'] = 'snrow';
$default['selfTpl'] = 'snself';
$default['prevTpl'] = 'snprev';
$default['nextTpl'] = 'snnext';
$default['firstTpl'] = 'snfirst';
$default['lastTpl'] = 'snlast';
$default['placeholderPrefix'] = 'sn.';
$default['id'] = $this->modx->resource->get('id');
$default['parents'] = false;
$default['showDeleted'] = 0;
$default['showUnpublished'] = 0;
$default['showHidden'] = 0;
//$default['level'] = 0;
//$default['includeDocs'] = '';
//$default['excludeDocs'] = '';
//$default['ph'] = false;
//$default['debug'] = false;
$default['ignoreHidden'] = false;
//$default['hideSubMenus'] = false;
//$default['useWeblinkUrl'] = true;
//$default['fullLink'] = false;
$default['sortOrder'] = 'ASC';
$default['sortBy'] = '{"menuindex":"ASC","id":"ASC"}';
$default['limit'] = false;
//$default['cssTpl'] = false;
//$default['jsTpl'] = false;
//$default['rowIdPrefix'] = false;
//$default['textOfLinks'] = 'menutitle';
//$default['titleOfLinks'] = 'pagetitle';
//$default['displayStart'] = false;
//$default['permissions'] = 'list';
$default['corePath'] = $corePath;
$default['modelPath'] = $corePath . 'model/';
$default['chunksPath'] = $corePath . 'elements/chunks/';
$default['chunkSuffix'] = '.chunk.html';
$default['snippetsPath'] = $corePath . 'elements/snippets/';
$default['processorsPath'] = $corePath . 'processors/';
$this->config = array_merge($default, $config);
}
function run()
{
if ($this->resource = $this->modx->getObject('modResource', $this->config['id'])) {
$this->rawValues = $this->resource->toArray('',true);
if ($this->config['parents']) {
$parents = explode (',',$this->config['parents']);
$parentsWithChilds = array();
$c = $this->modx->newQuery('modResource');
$c->where(array('id:IN'=>$parents));
if ($collection = $this->modx->getIterator('modResource',$c)){
foreach ($collection as $object){
if ($object->hasChildren()){
$parentsWithChilds[]=$object->get('id');
}
}
}
foreach ($parents as $parent){
if (in_array($parent,$parentsWithChilds)){
$sortedparents[] = $parent;
}
}
if (count($sortedparents)>0){
$this->config['parents'] = implode(',',$sortedparents);
}
else{
$this->config['parents'] = false;
}
}
$this->rows['prevrows'] = array();
$this->rows['nextrows'] = array();
$this->ph['prevlinks'] = '';
$this->ph['nextlinks'] = '';
$this->config['parent'] = $this->resource->get('parent');
if ($prevrows = $this->getSiblings('down')) {
$this->rows['prevrows'] = $this->makeArray($prevrows);
$prevlinks = $this->getChunks($this->config['rowTpl'], array_reverse($this->rows['prevrows']));
$this->ph['prevlinks'] = implode('', $prevlinks);
}
if ($nextrows = $this->getSiblings('up')) {
$this->rows['nextrows'] = $this->makeArray($nextrows);
$nextlinks = $this->getChunks($this->config['rowTpl'], $this->rows['nextrows'], $output);
$this->ph['nextlinks'] = implode('', $nextlinks);
}
$this->makePrevNext('prev');
$this->makePrevNext('next');
$this->makeFirstLast('first');
$this->makeFirstLast('last');
$this->limitRows();
$this->ph['self'] = $this->getChunk($this->config['selfTpl'], $this->resource->toArray());
//$this -> ph['rows'] = implode('', $output);
$this->modx->setPlaceholders($this->ph, $this->config['placeholderPrefix']);
}
return '';
}
function makeArray($collection)
{
$rows = array();
foreach ($collection as $object) {
$rows[] = $object->toArray();
}
return $rows;
}
function limitRows()
{
if ($this->config['limit']) {
$prevrows = $this->rows['prevrows'];
$nextrows = $this->rows['nextrows'];
$limit = $this->config['limit'];
$prevcount = count($prevrows);
$nextcount = count($nextrows);
$left_right = $limit - 1;
$left = round($left_right / 2);
$right = $left_right - $left;
if ($nextcount < $right) {
$left = $left_right - $nextcount;
$right = $nextcount;
} elseif ($prevcount < $left) {
$right = $left_right - $prevcount;
$left = $prevcount;
}
$this->rows['prevrows'] = array_slice($prevrows, 0, $left);
$this->rows['nextrows'] = array_slice($nextrows, 0, $right);
}
return;
}
function makePrevNext($dir)
{
$rows = $this->rows[$dir . 'rows'];
$row = array();
$row['_isactive'] = '0';
$row['id'] = '0';
if (count($rows) > 0) {
$row = $rows[0];
$row['_isactive'] = '1';
} else {
if ($this->config['parents']) {
$parents = explode(',', $this->config['parents']);
$key = array_search($this->config['parent'], $parents);
switch ($dir) {
case 'next':
$key = $key + 1;
//$direction = 'up';
break;
case 'prev':
$key = $key - 1;
//$direction = 'down';
break;
}
if ($key < 0 || $key > (count($parents) - 1)) {
} else {
$parent = $parents[$key];
if ($collection = $this->getSiblings($dir, $parent, false)) {
$this->rows[$dir . 'rows'] = $this->makeArray($collection);
}
return $this->makePrevNext($dir);
}
}
}
$this->ph[$dir] = $this->getChunk($this->config[$dir . 'Tpl'], $row);
return '';
}
function makeFirstLast($pos)
{
if ($collection = $this->getSiblings($pos, '_default', false, 1)) {
$rows = $this->makeArray($collection);
$row = $rows[0];
$row['_isself'] = $row['id'] == $this->config['id'] ? '1' : '0';
$this->ph[$pos] = $this->getChunk($this->config[$pos . 'Tpl'], $row);
}
return '';
}
function getChunks($tpl, $rows, $output = array())
{
if (count($rows) > 0) {
foreach ($rows as $row) {
//print_r($ph);
$output[] = $this->getChunk($tpl, $row);
}
}
return $output;
}
function getSiblings($dir, $parent = '_default', $fromhere = true, $limit = '_default')
{
$parent = $parent == '_default' ? $this->config['parent'] : $parent;
$limit = $limit == '_default' ? $this->config['limit'] : $limit;
//$sortby = $this->config['sortBy'];
$id = $this->config['id'];
$c = $this->modx->newQuery('modResource');
if (empty($this->config['showDeleted'])) {
$c->where(array('deleted' => '0'));
}
if (empty($this->config['showUnpublished'])) {
$c->where(array('published' => '1'));
}
if (empty($this->config['showHidden'])) {
$c->where(array('hidemenu' => '0'));
}
$c->where(array('parent' => $parent));
if ($dir != 'first' && $dir != 'last') {
$c->where(array('id:!=' => $id));
}
//echo '<br /><h2>'.$dir . '</h2><br />';
switch ($dir) {
case 'first':
case 'next':
case 'up':
$this->sort($c);
if ($fromhere) {
$sortfield1 = $this->sortfields[0];
$sortfield2 = $this->sortfields[1];
$sortvalue1 = $this->rawValues[$sortfield1];
$sortvalue2 = $this->rawValues[$sortfield2];
$greater_lower1 = $this->sortdirs[0] == 'DESC' ? '<' : '>';
$greater_lower2 = $this->sortdirs[1] == 'DESC' ? '<' : '>';
//select resources to the right - fall back to filter by the second sortfield (default:id), on duplicate sortvalues
$where = 'IF(' . $sortfield1 . ' = ' . $this->modx->quote($sortvalue1) . ',' . $sortfield2 . ' ' . $greater_lower2 . ' ' . $this->modx->quote($sortvalue2) . ',' . $sortfield1 . ' ' . $greater_lower1 .
' ' . $this->modx->quote($sortvalue1) . ')';
//echo $where.'<br />';
$c->where($where, xPDOQuery::SQL_AND);
}
break;
case 'last':
case 'prev':
case 'down':
$this->sort($c, true);
if ($fromhere) {
$sortfield1 = $this->sortfields[0];
$sortfield2 = $this->sortfields[1];
$sortvalue1 = $this->rawValues[$sortfield1];
$sortvalue2 = $this->rawValues[$sortfield2];
$greater_lower1 = $this->sortdirs[0] == 'DESC' ? '<' : '>';
$greater_lower2 = $this->sortdirs[1] == 'DESC' ? '<' : '>';
//select resources to the left - fall back to filter by the second sortfield (default:id), on duplicate sortvalues
$where = 'IF(' . $sortfield1 . ' = ' . $this->modx->quote($sortvalue1) . ',' . $sortfield2 . ' ' . $greater_lower2 . ' ' . $this->modx->quote($sortvalue2) . ',' . $sortfield1 . ' ' . $greater_lower1 .
' ' . $this->modx->quote($sortvalue1) . ')';
//echo $where.'<br />';
$c->where($where, xPDOQuery::SQL_AND);
}
break;
}
if ($limit) {
$c->limit($limit);
}
$c->prepare();
//echo $c->toSql() . '<br />';
if ($collection = $this->modx->getCollection('modResource', $c)) {
return $collection;
} else {
return false;
}
}
function sort(&$c, $reverse = false)
{
$sortby = $this->config['sortBy'];
if (!empty($sortby)) {
if (strpos($sortby, '{') === 0) {
$sorts = $this->modx->fromJSON($sortby);
}
if (is_array($sorts)) {
$this->sortfields = array();
$this->sortdirs = array();
while (list($sort, $dir) = each($sorts)) {
if ($reverse) {
$dir = $dir == 'ASC' ? 'DESC' : 'ASC';
}
//echo $sort.' '.$dir.'<br />';
$this->sortfields[] = $sort;
$this->sortdirs[] = $dir;
$c->sortby($sort, $dir);
}
if (!in_array('id',$this->sortfields)) {
$sort = 'id';
$dir = $this->sortdirs[0];
//echo $sort.' '.$dir.'<br />';
$this->sortfields[] = $sort;
$this->sortdirs[] = $dir;
$c->sortby($sort, $dir);
}
}
}
return;
}
/**
* Gets a Chunk and caches it; also falls back to file-based templates
* for easier debugging.
*
* @access public
* @param string $name The name of the Chunk
* @param array $properties The properties for the Chunk
* @return string The processed content of the Chunk
*/
public function getChunk($name, array $properties = array())
{
$chunk = null;
if (!isset($this->chunks[$name])) {
$chunk = $this->modx->getObject('modChunk', array('name' => $name), true);
if (empty($chunk)) {
$chunk = $this->_getTplChunk($name, $this->config['chunkSuffix']);
if ($chunk == false) return false;
}
$this->chunks[$name] = $chunk->getContent();
} else {
$o = $this->chunks[$name];
$chunk = $this->modx->newObject('modChunk');
$chunk->setContent($o);
}
$chunk->setCacheable(false);
return $chunk->process($properties);
}
/**
* Returns a modChunk object from a template file.
*
* @access private
* @param string $name The name of the Chunk. Will parse to name.chunk.html by default.
* @param string $suffix The suffix to add to the chunk filename.
* @return modChunk/boolean Returns the modChunk object if found, otherwise
* false.
*/
private function _getTplChunk($name, $suffix = '.chunk.tpl')
{
$chunk = false;
$f = $this->config['chunksPath'] . strtolower($name) . $suffix;
if (file_exists($f)) {
$o = file_get_contents($f);
$chunk = $this->modx->newObject('modChunk');
$chunk->set('name', $name);
$chunk->setContent($o);
}
return $chunk;
}
}