/**
* ============================================================================
* PAGINATION EXTRACTOR FOR LIST OF FILE(S)
* ============================================================================
*
* -- CODE: -------------------------------------------------------------------
*
* $pager = Navigator::extract(glob('some/files/*.txt'), 1, 5, 'foo/bar');
* echo $pager->prev->link;
*
* ----------------------------------------------------------------------------
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* Parameter | Type | Description
* ---------- | ------- | ----------------------------------------------------
* $pages | array | Array of file(s) to be paginated
* $current | integer | The current page offset
* $current | string | The current page path
* $per_page | integer | Number of file(s) to show per page request
* $connector | string | Extra path to be inserted into URL
* ---------- | ------- | ----------------------------------------------------
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
*/
public static function extract($pages = array(), $current = 1, $per_page = 10, $connector = '/')
{
// Set default next, previous and step data
self::$bucket = array('prev' => false, 'next' => false, 'step' => false);
$pages = (array) $pages;
$config = Config::get();
$speak = Config::speak();
$base = $config->url;
$q = str_replace('&', '&', $config->url_query);
$qq = strpos($connector, '?') !== false ? str_replace('?', '&', $q) : $q;
$total = count($pages);
$sn = self::$config;
if (strpos($connector, '%s') === false) {
if (trim($connector, '/') !== "") {
$connector = '/' . trim($connector, '/') . '/%s';
} else {
$connector = '/%s';
}
}
if (is_int($current)) {
$current = (int) $current;
$prev = $current > 1 ? $current - 1 : false;
$next = $current < ceil($total / $per_page) ? $current + 1 : false;
// Generate next/previous URL for index page
self::$bucket['prev']['url'] = Filter::apply('pager:prev.url', Filter::apply('pager:url', $prev ? $base . sprintf($connector, $prev) . $qq : $base . $q, $prev, $connector), $prev, $connector);
self::$bucket['next']['url'] = Filter::apply('pager:next.url', Filter::apply('pager:url', $next ? $base . sprintf($connector, $next) . $qq : $base . $q, $next, $connector), $next, $connector);
// Generate next/previous text for index page
self::$bucket['prev']['text'] = $prev ? $speak->newer : $speak->home;
self::$bucket['next']['text'] = $next ? $speak->older : $speak->home;
// Generate next/previous link for index page
self::$bucket['prev']['link'] = Filter::apply('pager:prev.link', Filter::apply('pager:link', $prev ? '<a href="' . self::$bucket['prev']['url'] . '" rel="prev">' . self::$bucket['prev']['text'] . '</a>' : "", $prev, $connector), $prev, $connector);
self::$bucket['next']['link'] = Filter::apply('pager:next.link', Filter::apply('pager:link', $next ? '<a href="' . self::$bucket['next']['url'] . '" rel="next">' . self::$bucket['next']['text'] . '</a>' : "", $next, $connector), $next, $connector);
// Generate pagination link(s) for index page
$html = '<span' . ($sn['classes']['pagination'] !== false ? ' class="' . $sn['classes']['pagination'] . '"' : "") . '>';
$chunk = (int) ceil($total / $per_page);
$step = $chunk > self::$config['step'] ? self::$config['step'] : $chunk;
$left = $current - $step;
if ($left < 1) {
$left = 1;
}
if ($chunk > 1) {
$html .= Filter::apply('pager:step.link', Filter::apply('pager:link', $prev ? '<a href="' . $base . sprintf($connector, '1') . $qq . '">' . $speak->first . '</a>' : '<span>' . $speak->first . '</span>', 1, $connector), 1, $connector);
$html .= Filter::apply('pager:step.link', Filter::apply('pager:link', $prev ? '<a href="' . $base . sprintf($connector, $prev) . $qq . '">' . $speak->prev . '</a>' : '<span>' . $speak->prev . '</span>', $prev, $connector), $prev, $connector);
$html .= '<span>';
for ($i = $current - $step + 1; $i < $current + $step; ++$i) {
if ($chunk > 1) {
if ($i - 1 < $chunk && ($i > 0 && $i + 1 > $current - $left - round($chunk / 2))) {
$html .= Filter::apply('pager:step.link', Filter::apply('pager:link', $i !== $current ? '<a href="' . $base . sprintf($connector, $i) . $qq . '">' . $i . '</a>' : '<strong' . ($sn['classes']['current'] !== false ? ' class="' . $sn['classes']['current'] . '"' : "") . '>' . $i . '</strong>', $i, $connector), $i, $connector);
self::$bucket['step']['url'][] = Filter::apply('pager:step.url', Filter::apply('pager:url', $i !== $current ? $base . sprintf($connector, $i) . $qq : false, $i, $connector), $i, $connector);
}
}
}
$html .= '</span>';
$html .= Filter::apply('pager:step.link', Filter::apply('pager:link', $next ? '<a href="' . $base . sprintf($connector, $next) . $qq . '">' . $speak->next . '</a>' : '<span>' . $speak->next . '</span>', $next, $connector), $next, $connector);
$html .= Filter::apply('pager:step.link', Filter::apply('pager:link', $next ? '<a href="' . $base . sprintf($connector, $chunk) . $qq . '">' . $speak->last . '</a>' : '<span>' . $speak->last . '</span>', $chunk, $connector), $chunk, $connector);
}
self::$bucket['step']['link'] = $html . '</span>';
}
if (is_string($current)) {
for ($i = 0; $i < $total; ++$i) {
if ($pages[$i] === $current) {
$prev = isset($pages[$i - 1]) ? $pages[$i - 1] : false;
$next = isset($pages[$i + 1]) ? $pages[$i + 1] : false;
// Generate next/previous URL for single page
self::$bucket['prev']['url'] = Filter::apply('pager:prev.url', Filter::apply('pager:url', $prev ? $base . sprintf($connector, $prev) . $qq : $base . $q, $prev, $connector), $prev, $connector);
self::$bucket['next']['url'] = Filter::apply('pager:next.url', Filter::apply('pager:url', $next ? $base . sprintf($connector, $next) . $qq : $base . $q, $next, $connector), $next, $connector);
// Generate next/previous text for single page
self::$bucket['prev']['text'] = $prev ? $speak->newer : $speak->home;
self::$bucket['next']['text'] = $next ? $speak->older : $speak->home;
// Generate next/previous link for single page
self::$bucket['prev']['link'] = Filter::apply('pager:prev.link', Filter::apply('pager:link', self::$bucket['prev']['url'] !== $base ? '<a href="' . self::$bucket['prev']['url'] . '" rel="prev">' . self::$bucket['prev']['text'] . '</a>' : "", $prev, $connector), $prev, $connector);
self::$bucket['next']['link'] = Filter::apply('pager:next.link', Filter::apply('pager:link', self::$bucket['next']['url'] !== $base ? '<a href="' . self::$bucket['next']['url'] . '" rel="next">' . self::$bucket['next']['text'] . '</a>' : "", $next, $connector), $next, $connector);
break;
}
}
}
return Mecha::O(self::$bucket);
}
