function run()
{
try {
$nPageId = (int) AnwEnv::_GET("page");
if ($nPageId <= 0) {
throw new AnwBadCallException();
}
//find TO revision
$nRevToChangeId = (int) AnwEnv::_GET("revto");
if ($nRevToChangeId <= 0) {
throw new AnwBadCallException();
} else {
$oPageRevTo = AnwPage::getPageByChangeId($nPageId, $nRevToChangeId);
}
//find FROM revision
$nRevFromChangeId = (int) AnwEnv::_GET("revfrom");
if ($nRevFromChangeId <= 0) {
try {
$oPageRevFrom = $oPageRevTo->getPreviousArchive();
} catch (AnwArchiveNotFoundException $e) {
//if TO revision is already the last...
$oPageRevFrom = $oPageRevTo;
}
} else {
$oPageRevFrom = AnwPage::getPageByChangeId($nPageId, $nRevFromChangeId);
}
if (!$oPageRevTo) {
throw new AnwBadCallException("page revision TO not found :" . $nRevToChangeId);
}
if (!$oPageRevTo->getContent() instanceof AnwContentPage) {
throw new AnwUnexpectedException("error getcontent for page revision TO :" . $nRevToChangeId);
}
if (!$oPageRevFrom) {
throw new AnwBadCallException("page revision FROM not found :" . $nRevFromChangeId);
}
if (!$oPageRevFrom->getContent() instanceof AnwContentPage) {
throw new AnwUnexpectedException("error getcontent for page revision FROM :" . $nRevFromChangeId);
}
// check permissions
$oPageRevFrom->checkGlobalAndViewActionAllowed($this->getName());
$oPageRevTo->checkGlobalAndViewActionAllowed($this->getName());
$oContentXmlFrom = $oPageRevFrom->getContent()->toXml();
$oContentXmlTo = $oPageRevTo->getContent()->toXml();
} catch (AnwBadPageNameException $e) {
$this->error($this->g_("err_badcall"));
} catch (AnwBadCallException $e) {
$this->error($this->g_("err_badcall"));
} catch (AnwPageNotFoundException $e) {
$this->error($this->g_("err_badcall"));
} catch (AnwArchiveNotFoundException $e) {
$this->error($this->g_("err_badcall"));
}
$this->setTitle($this->t_("title", array("pagename" => $oPageRevTo->getName())));
$oDiffs = new AnwDiffs($oContentXmlFrom, $oContentXmlTo);
if (!AnwCurrentSession::getUser()->isPhpEditionAllowed()) {
$oDiffs->hidePhpCode();
} else {
$oDiffs->showPhpCode();
}
$this->out .= $this->tpl()->beforeDiffs($this->linkMe(), $oPageRevFrom, $oPageRevTo, $oPageRevTo->getActivePage());
if ($oPageRevFrom->getChangeId() == $oPageRevTo->getChangeId()) {
$this->out .= $this->tpl()->drawNotice($this->t_("notice_same"));
}
if ($oPageRevFrom->getChangeId() > $oPageRevTo->getChangeId()) {
$this->out .= $this->tpl()->drawNotice($this->t_("notice_reverse"));
}
$this->renderDiffs($oDiffs);
}
private static function findDiffsNodes($aoDiffs)
{
//AnwDebug::logdetail(" ------ findDiffsNodes ------ ");
$aoNewDiffs = array();
//find edited nodes (= near deletion + addition with the same tag)
$nCountDiffs = count($aoDiffs);
for ($i = 0; $i < $nCountDiffs; $i++) {
//$bKeepDiffUnchanged = true;
if (isset($aoDiffs[$i])) {
$oDiff = $aoDiffs[$i];
if ($oDiff->getDiffType() == AnwDiff::TYPE_ADDED || $oDiff->getDiffType() == AnwDiff::TYPE_DELETED) {
$j = self::findEditedNodes_findNext($aoDiffs, $i);
if ($j) {
if ($oDiff->getDiffType() == AnwDiff::TYPE_ADDED) {
$iDiffAdded = $i;
$iDiffDeleted = $j;
} else {
$iDiffAdded = $j;
$iDiffDeleted = $i;
}
$oDiffAdded = $aoDiffs[$iDiffAdded];
$oDiffDeleted = $aoDiffs[$iDiffDeleted];
//AnwDebug::logdetail("?!? ".htmlentities(AnwUtils::xmlDumpNode($oDiffAdded->getNode()))." (".$oDiffAdded->getNode()->nodeName.")");
if (AnwXml::xmlIsTextNode($oDiffAdded->getNode()) || AnwXml::xmlIsUnmodifiableBlockNode($oDiffAdded->getNode())) {
//---------------------------------------------------------
// EDITED NODE
//---------------------------------------------------------
} else {
//---------------------------------------------------------
// DIFFS NODE
//---------------------------------------------------------
$oDiffReplacingAdded = new AnwDiffs($oDiffDeleted->getNode(), $oDiffAdded->getNode(), $oDiffAdded->getNode());
//AnwDebug::logdetail("findEditedNodes : AnwDiffs found".htmlentities(AnwUtils::xmlDumpNode($oDiffDeleted->getNode()))." --> ".htmlentities(AnwUtils::xmlDumpNode($oDiffAdded->getNode())));
//pre-calculate diffs - recursive call to xmlDiff()
$oDiffReplacingAdded->getAllDiffs();
//replace AnwDiffAdded with AnwDiffEdited, remove AnwDiffDeleted
//$bKeepDiffUnchanged = false;
//$aoNewDiffs[] = $oDiffReplacingAdded; //replace AnwDiffAdded
$oDiff = $oDiffReplacingAdded;
//replace AnwDiffAdded
unset($aoDiffs[$iDiffDeleted]);
//remove AnwDiffDeleted
}
}
}
//if ($bKeepDiffUnchanged)
//{
$aoNewDiffs[] = $oDiff;
//}
}
}
return $aoNewDiffs;
}
