id = $id; $this->setChangeLog(); } /** * set class property changelog */ abstract protected function setChangeLog(); /** * Get revisions, and set correct pagination parameters (first, hasNext) * * @param int $first * @param bool $hasNext * @return array revisions to be shown in a paginated list * @see also https://www.dokuwiki.org/devel:changelog */ protected function getRevisions(&$first, &$hasNext) { global $conf; $changelog =& $this->changelog; $revisions = []; $currentRevInfo = $changelog->getCurrentRevisionInfo(); if (!$currentRevInfo) return $revisions; $num = $conf['recent']; if ($first == 0) { // add external or existing last revision that is excluded from $changelog->getRevisions() if (array_key_exists('timestamp', $currentRevInfo) || ( $currentRevInfo['type'] != DOKU_CHANGE_TYPE_DELETE && $currentRevInfo['date'] == $changelog->lastRevision() ) ) { $revisions[] = $currentRevInfo; $num = $num - 1; } } /* we need to get one additional log entry to be able to * decide if this is the last page or is there another one. * see also Ui\Recent::getRecents() */ $revlist = $changelog->getRevisions($first, $num + 1); if (count($revlist) == 0 && $first > 0) { // resets to zero if $first requested a too high number $first = 0; return $this->getRevisions($first, $hasNext); } // decide if this is the last page or is there another one $hasNext = false; if (count($revlist) > $num) { $hasNext = true; array_pop($revlist); // remove one additional log entry } // append each revision info array to the revisions foreach ($revlist as $rev) { $revisions[] = $changelog->getRevisionInfo($rev); } return $revisions; } /** * Navigation buttons for Pagination (prev/next) * * @param int $first * @param bool $hasNext * @param callable $callback returns array of hidden fields for the form button * @return string html */ protected function navigation($first, $hasNext, $callback) { global $conf; $html = '
'; $last = $first + $conf['recent']; if ($first > 0) { $first = max($first - $conf['recent'], 0); $html.= '
'; $html.= html_btn('newer', $this->id, "p", $callback($first)); $html.= '
'; } if ($hasNext) { $html.= '
'; $html.= html_btn('older', $this->id, "n", $callback($last)); $html.= '
'; } $html.= '
'; return $html; } }