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<?php |
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namespace dokuwiki\Ui; |
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use dokuwiki\ChangeLog\PageChangeLog; |
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use dokuwiki\Ui\PageRevisions; |
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use dokuwiki\Form\Form; |
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/** |
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* DokuWiki PageDiff Interface |
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* |
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* @author Andreas Gohr <[email protected]> |
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* @author Satoshi Sahara <[email protected]> |
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* @package dokuwiki\Ui |
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*/ |
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class PageDiff extends Diff |
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{ |
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/* @var PageChangeLog */ |
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protected $changelog; |
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/* @var string */ |
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protected $text; |
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/** |
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* PageDiff Ui constructor |
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* |
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* @param string $id page id |
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*/ |
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public function __construct($id = null) |
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{ |
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global $INFO; |
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if (!isset($id)) $id = $INFO['id']; |
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$this->item = 'page'; |
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// init preference |
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$this->preference['showIntro'] = true; |
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$this->preference['difftype'] = 'sidebyside'; // diff view type: inline or sidebyside |
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parent::__construct($id); |
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} |
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/** @inheritdoc */ |
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protected function setChangeLog() |
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{ |
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$this->changelog = new PageChangeLog($this->id); |
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} |
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/** @inheritdoc */ |
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protected function itemFN($id, $rev = '') |
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{ |
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return wikiFN($id, $rev); |
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} |
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/** |
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* Set text to be compared with most current version |
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* exclusively use of the compare($old, $new) method |
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* |
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* @param string $text |
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* @return $this |
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*/ |
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public function compareWith($text = null) |
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{ |
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if (isset($text)) { |
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$this->text = $text; |
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$this->oldRev = ''; |
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$this->newRev = null; |
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} |
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return $this; |
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} |
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/** @inheritdoc */ |
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protected function preProcess() |
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{ |
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parent::preProcess(); |
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if (!isset($this->oldRev, $this->newRev)) { |
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// no revision was given, compare previous to current |
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$this->oldRev = $this->changelog->getRevisions(0, 1)[0]; |
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$this->newRev = ''; |
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global $INFO, $REV; |
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if ($this->id == $INFO['id']) |
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$REV = $this->oldRev; // store revision back in $REV |
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} |
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} |
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/** |
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* Show diff |
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* between current page version and provided $text |
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* or between the revisions provided via GET or POST |
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* |
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* @author Andreas Gohr <[email protected]> |
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* |
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* @return void |
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*/ |
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public function show() |
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{ |
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global $INFO, $lang; |
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// determine left and right revision |
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if (!isset($this->oldRev)) $this->preProcess(); |
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// create difference engine object |
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if (isset($this->text)) { // compare text to the most current revision |
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$oldText = rawWiki($this->id, ''); |
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$newText = cleanText($this->text); |
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} else { |
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// when both revisions are empty then the page was created just now |
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$oldText = (!$this->oldRev && !$this->newRev) ? '' : rawWiki($this->id, $this->oldRev); |
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$newText = rawWiki($this->id, $this->newRev); // empty when removed page |
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} |
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$Difference = new \Diff(explode("\n", $oldText), explode("\n", $newText)); |
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// revison info of older page (left side) |
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$oldRevInfo = $this->getExtendedRevisionInfo($this->oldRev); |
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// revison info of newer page (right side) |
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if (isset($this->text)) { |
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$newRevInfo = array('date' => null); |
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} else { |
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$newRevInfo = $this->getExtendedRevisionInfo($this->newRev); |
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} |
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// determin exact revision identifiers, even for current page |
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$oldRev = $oldRevInfo['date']; |
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$newRev = $newRevInfo['date']; |
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// build paired navigation |
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$navOlderRevisions = ''; |
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$navNewerRevisions = ''; |
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if (!isset($this->text)) { |
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list( |
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$navOlderRevisions, |
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$navNewerRevisions, |
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) = $this->buildRevisionsNavigation($oldRev, $newRev); |
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} |
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// display intro |
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if ($this->preference['showIntro']) echo p_locale_xhtml('diff'); |
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// print form to choose diff view type, and exact url reference to the view |
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if (!isset($this->text)) { |
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$this->showDiffViewSelector($oldRev, $newRev); |
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} |
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// assign minor edit checker to the variable |
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$classEditType = function ($info) { |
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return ($info['type'] === DOKU_CHANGE_TYPE_MINOR_EDIT) ? ' class="minor"' : ''; |
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}; |
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// display diff view table |
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echo '<div class="table">'; |
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echo '<table class="diff diff_'.$this->preference['difftype'] .'">'; |
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//navigation and header |
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switch ($this->preference['difftype']) { |
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case 'inline': |
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if (!isset($this->text)) { |
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echo '<tr>' |
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.'<td class="diff-lineheader">-</td>' |
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.'<td class="diffnav">'. $navOlderRevisions .'</td>' |
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.'</tr>'; |
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echo '<tr>' |
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.'<th class="diff-lineheader">-</th>' |
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.'<th'.$classEditType($oldRevInfo).'>'.$this->revisionTitle($oldRevInfo).'</th>' |
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.'</tr>'; |
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} |
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echo '<tr>' |
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.'<td class="diff-lineheader">+</td>' |
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.'<td class="diffnav">'. $navNewerRevisions .'</td>' |
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.'</tr>'; |
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echo '<tr>' |
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.'<th class="diff-lineheader">+</th>' |
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.'<th'.$classEditType($newRevInfo).'>'.$this->revisionTitle($newRevInfo).'</th>' |
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.'</tr>'; |
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// create formatter object |
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$DiffFormatter = new \InlineDiffFormatter(); |
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break; |
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case 'sidebyside': |
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default: |
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if (!isset($this->text)) { |
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echo '<tr>' |
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.'<td colspan="2" class="diffnav">'. $navOlderRevisions .'</td>' |
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.'<td colspan="2" class="diffnav">'. $navNewerRevisions .'</td>' |
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.'</tr>'; |
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} |
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echo '<tr>' |
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.'<th colspan="2"'.$classEditType($oldRevInfo).'>'.$this->revisionTitle($oldRevInfo).'</th>' |
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.'<th colspan="2"'.$classEditType($newRevInfo).'>'.$this->revisionTitle($newRevInfo).'</th>' |
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.'</tr>'; |
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// create formatter object |
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$DiffFormatter = new \TableDiffFormatter(); |
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break; |
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} |
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// output formatted difference |
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echo $this->insertSoftbreaks($DiffFormatter->format($Difference)); |
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echo '</table>'; |
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echo '</div>'; |
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} |
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/** |
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* Revision Title for PageDiff table headline |
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* |
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* @param array $info Revision info structure of a page |
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* @return string |
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*/ |
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protected function revisionTitle(array $info) |
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{ |
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global $lang, $INFO; |
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// use designated title when compare current page source with given text |
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if (array_key_exists('date', $info) && is_null($info['date'])) { |
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return $lang['yours']; |
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} |
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if (isset($info['date'])) { |
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$rev = $info['date']; |
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$title = '<bdi><a class="wikilink1" href="'.wl($this->id, ['rev' => $rev]).'">' |
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. $this->id.' ['.dformat($rev).']'.'</a></bdi>'; |
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} else { |
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$rev = false; |
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$title = '—'; |
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} |
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if (isset($info['current']) || ($rev && $rev == $INFO['currentrev'])) { |
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$title .= ' ('.$lang['current'].')'; |
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} |
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// append separator |
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$title .= ($this->preference['difftype'] === 'inline') ? ' ' : '<br />'; |
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// supplement |
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if (isset($info['date'])) { |
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$objRevInfo = (new PageRevisions($this->id))->getObjRevInfo($info); |
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$title .= $objRevInfo->editSummary().' '.$objRevInfo->editor(); |
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} |
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return $title; |
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} |
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/** |
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* Print form to choose diff view type, and exact url reference to the view |
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* |
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* @param int $oldRev timestamp of older revision, left side |
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* @param int $newRev timestamp of newer revision, right side |
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*/ |
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protected function showDiffViewSelector($oldRev, $newRev) |
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{ |
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global $lang; |
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echo '<div class="diffoptions group">'; |
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// create the form to select difftype |
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$form = new Form(['action' => wl()]); |
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$form->setHiddenField('id', $this->id); |
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$form->setHiddenField('rev2[0]', $this->oldRev ?: 'current'); |
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$form->setHiddenField('rev2[1]', $this->newRev ?: 'current'); |
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$form->setHiddenField('do', 'diff'); |
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$options = array( |
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'sidebyside' => $lang['diff_side'], |
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'inline' => $lang['diff_inline'], |
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); |
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$input = $form->addDropdown('difftype', $options, $lang['diff_type']) |
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->val($this->preference['difftype']) |
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->addClass('quickselect'); |
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$input->useInput(false); // inhibit prefillInput() during toHTML() process |
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$form->addButton('do[diff]', 'Go')->attr('type','submit'); |
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echo $form->toHTML(); |
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// show exact url reference to the view when it is meaningful |
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echo '<p>'; |
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if (!isset($this->text) && $oldRev && $newRev) { |
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// link to exactly this view FS#2835 |
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$viewUrl = $this->diffViewlink('difflink', $oldRev, $newRev); |
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} |
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echo $viewUrl ?? '<br />'; |
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echo '</p>'; |
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echo '</div>'; // .diffoptions |
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} |
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/** |
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* Create html for revision navigation |
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* |
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* The navigation consists of older and newer revisions selectors, each |
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* state mutually depends on the selected revision of opposite side. |
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* |
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* @param int $oldRev timestamp of older revision, older side |
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* @param int $newRev timestamp of newer revision, newer side |
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* @return string[] html of navigation for both older and newer sides |
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*/ |
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protected function buildRevisionsNavigation($oldRev, $newRev) |
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{ |
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global $INFO; |
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$changelog =& $this->changelog; |
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// determine the last revision, which is usually the timestamp of current page, |
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// however which might be the last revision if the page had removed. |
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if (!$newRev) { |
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if ($this->id == $INFO['id']) { |
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// note: when page is removed, the metadata timestamp is zero |
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$lastRev = $INFO['currentrev'] ?? $INFO['meta']['last_change']['date'] ?? 0; |
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} else { |
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$lastRevs = $changelog->getRevisions(-1, 1) // empty array for removed page |
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?: $changelog->getRevisions(0, 1); // last entry of changelog |
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$lastRev = count($lastRevs) > 0 ? $lastRevs[0] : 0; |
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} |
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$newRev = $lastRev; |
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} |
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312
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// retrieve revisions with additional info |
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313
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list($oldRevs, $newRevs) = $changelog->getRevisionsAround($oldRev, $newRev); |
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314
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315
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// build options for dropdown selector |
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316
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$olderRevisions = $this->buildRevisionOptions('older', $oldRevs, $oldRev, $newRev); |
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317
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$newerRevisions = $this->buildRevisionOptions('newer', $newRevs, $oldRev, $newRev); |
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318
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319
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//determine previous/next revisions |
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320
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$index = array_search($oldRev, $oldRevs); |
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321
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$oldPrevRev = $oldRevs[$index + 1]; |
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322
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$oldNextRev = $oldRevs[$index - 1]; |
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323
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if ($newRev) { |
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$index = array_search($newRev, $newRevs); |
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325
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$newPrevRev = $newRevs[$index + 1]; |
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326
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$newNextRev = $newRevs[$index - 1]; |
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} else { |
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//removed page |
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329
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$newPrevRev = ($oldNextRev) ? $newRevs[0] : null; |
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$newNextRev = null; |
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331
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} |
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332
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333
|
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/* |
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334
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* navigation UI for older revisions / Left side: |
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335
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*/ |
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336
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$navOlderRevs = ''; |
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337
|
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//move back |
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338
|
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if ($oldPrevRev) { |
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$navOlderRevs .= $this->diffViewlink('diffbothprevrev', $oldPrevRev, $newPrevRev); |
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340
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$navOlderRevs .= $this->diffViewlink('diffprevrev', $oldPrevRev, $newRev); |
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} |
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//dropdown |
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$navOlderRevs .= $this->buildDropdownSelector('older', $olderRevisions, $oldRev, $newRev); |
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344
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//move forward |
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345
|
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if ($oldNextRev && ($oldNextRev < $newRev || !$newRev)) { |
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$navOlderRevs .= $this->diffViewlink('diffnextrev', $oldNextRev, $newRev); |
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347
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} |
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348
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349
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/* |
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350
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* navigation UI for newer revisions / Right side: |
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351
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*/ |
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352
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$navNewerRevs = ''; |
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353
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//move back |
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354
|
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if ($oldRev < $newPrevRev) { |
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355
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$navNewerRevs .= $this->diffViewlink('diffprevrev', $oldRev, $newPrevRev); |
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356
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} |
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357
|
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//dropdown |
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358
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$navNewerRevs .= $this->buildDropdownSelector('newer', $newerRevisions, $oldRev, $newRev); |
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359
|
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//move forward |
|
360
|
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if ($newNextRev) { |
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361
|
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if ($changelog->isCurrentRevision($newNextRev)) { |
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362
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//last revision is diff with current page |
|
363
|
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$navNewerRevs .= $this->diffViewlink('difflastrev', $oldRev); |
|
364
|
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} else { |
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365
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$navNewerRevs .= $this->diffViewlink('diffnextrev', $oldRev, $newNextRev); |
|
366
|
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|
} |
|
367
|
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$navNewerRevs .= $this->diffViewlink('diffbothnextrev', $oldNextRev, $newNextRev); |
|
368
|
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} |
|
369
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|
return array($navOlderRevs, $navNewerRevs); |
|
370
|
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} |
|
371
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372
|
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/** |
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373
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* prepare options for dropdwon selector |
|
374
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* |
|
375
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* @params string $side "older" or "newer" |
|
376
|
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|
* @params array $revs list of revsion |
|
377
|
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|
* @param int $oldRev timestamp of older revision, left side |
|
378
|
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|
* @param int $newRev timestamp of newer revision, right side |
|
379
|
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* @return array |
|
380
|
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*/ |
|
381
|
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protected function buildRevisionOptions($side, $revs, $oldRev, $newRev) |
|
382
|
|
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{ |
|
383
|
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$changelog =& $this->changelog; |
|
384
|
|
|
$revisions = array(); |
|
385
|
|
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|
|
386
|
|
|
if (($side == 'older' && !$oldRev) // NOTE: this case should not happen! |
|
387
|
|
|
||($side == 'newer' && (!$newRev || !page_exists($this->id))) |
|
388
|
|
|
) { |
|
389
|
|
|
//no revision given, likely removed page, add dummy entry |
|
390
|
|
|
$revisions['current'] = array( |
|
391
|
|
|
'label' => '—', // U+2014 — |
|
392
|
|
|
'attrs' => [], |
|
393
|
|
|
); |
|
394
|
|
|
} |
|
395
|
|
|
|
|
396
|
|
|
foreach ($revs as $rev) { |
|
397
|
|
|
$info = $changelog->getRevisionInfo($rev); |
|
398
|
|
|
$revisions[$rev] = array( |
|
399
|
|
|
'label' => implode(' ', [ |
|
400
|
|
|
dformat($info['date']), |
|
401
|
|
|
editorinfo($info['user'], true), |
|
402
|
|
|
$info['sum'], |
|
403
|
|
|
]), |
|
404
|
|
|
'attrs' => ['title' => $rev], |
|
405
|
|
|
); |
|
406
|
|
|
if (($side == 'older' && ($newRev ? $rev >= $newRev : false)) |
|
407
|
|
|
||($side == 'newer' && ($rev <= $oldRev)) |
|
408
|
|
|
) { |
|
409
|
|
|
$revisions[$rev]['attrs']['disabled'] = 'disabled'; |
|
410
|
|
|
} |
|
411
|
|
|
} |
|
412
|
|
|
return $revisions; |
|
413
|
|
|
} |
|
414
|
|
|
|
|
415
|
|
|
/** |
|
416
|
|
|
* build Dropdown form for revisions navigation |
|
417
|
|
|
* |
|
418
|
|
|
* @params string $side "older" or "newer" |
|
419
|
|
|
* @params array $options dropdown options |
|
420
|
|
|
* @param int $oldRev timestamp of older revision, left side |
|
421
|
|
|
* @param int $newRev timestamp of newer revision, right side |
|
422
|
|
|
* @return sting |
|
423
|
|
|
*/ |
|
424
|
|
|
protected function buildDropdownSelector($side, $options, $oldRev, $newRev) |
|
425
|
|
|
{ |
|
426
|
|
|
$form = new Form(['action' => wl($this->id)]); |
|
427
|
|
|
$form->setHiddenField('id', $this->id); |
|
428
|
|
|
$form->setHiddenField('do', 'diff'); |
|
429
|
|
|
$form->setHiddenField('difftype', $this->preference['difftype']); |
|
430
|
|
|
|
|
431
|
|
|
switch ($side) { |
|
432
|
|
|
case 'older': // left side |
|
433
|
|
|
$form->setHiddenField('rev2[1]', $newRev ?: 'current'); |
|
434
|
|
|
$input = $form->addDropdown('rev2[0]', $options) |
|
435
|
|
|
->val($oldRev ?: 'current')->addClass('quickselect'); |
|
436
|
|
|
$input->useInput(false); // inhibit prefillInput() during toHTML() process |
|
437
|
|
|
break; |
|
438
|
|
|
case 'newer': // right side |
|
439
|
|
|
$form->setHiddenField('rev2[0]', $oldRev ?: 'current'); |
|
440
|
|
|
$input = $form->addDropdown('rev2[1]', $options) |
|
441
|
|
|
->val($newRev ?: 'current')->addClass('quickselect'); |
|
442
|
|
|
$input->useInput(false); // inhibit prefillInput() during toHTML() process |
|
443
|
|
|
break; |
|
444
|
|
|
} |
|
445
|
|
|
$form->addButton('do[diff]', 'Go')->attr('type','submit'); |
|
446
|
|
|
return $form->toHTML(); |
|
447
|
|
|
} |
|
448
|
|
|
|
|
449
|
|
|
/** |
|
450
|
|
|
* Create html link to a diff view defined by two revisions |
|
451
|
|
|
* |
|
452
|
|
|
* @param string $linktype |
|
453
|
|
|
* @param int $oldRev older revision |
|
454
|
|
|
* @param int $newRev newer revision or null for diff with current revision |
|
455
|
|
|
* @return string html of link to a diff view |
|
456
|
|
|
*/ |
|
457
|
|
|
protected function diffViewlink($linktype, $oldRev, $newRev = null) |
|
458
|
|
|
{ |
|
459
|
|
|
global $lang; |
|
460
|
|
|
if ($newRev === null) { |
|
461
|
|
|
$urlparam = array( |
|
462
|
|
|
'do' => 'diff', |
|
463
|
|
|
'rev' => $oldRev, |
|
464
|
|
|
'difftype' => $this->preference['difftype'], |
|
465
|
|
|
); |
|
466
|
|
|
} else { |
|
467
|
|
|
$urlparam = array( |
|
468
|
|
|
'do' => 'diff', |
|
469
|
|
|
'rev2[0]' => $oldRev, |
|
470
|
|
|
'rev2[1]' => $newRev, |
|
471
|
|
|
'difftype' => $this->preference['difftype'], |
|
472
|
|
|
); |
|
473
|
|
|
} |
|
474
|
|
|
$attr = array( |
|
475
|
|
|
'class' => $linktype, |
|
476
|
|
|
'href' => wl($this->id, $urlparam, true, '&'), |
|
477
|
|
|
'title' => $lang[$linktype], |
|
478
|
|
|
); |
|
479
|
|
|
return '<a '. buildAttributes($attr) .'><span>'. $lang[$linktype] .'</span></a>'; |
|
480
|
|
|
} |
|
481
|
|
|
|
|
482
|
|
|
|
|
483
|
|
|
/** |
|
484
|
|
|
* Insert soft breaks in diff html |
|
485
|
|
|
* |
|
486
|
|
|
* @param string $diffhtml |
|
487
|
|
|
* @return string |
|
488
|
|
|
*/ |
|
489
|
|
|
public function insertSoftbreaks($diffhtml) |
|
490
|
|
|
{ |
|
491
|
|
|
// search the diff html string for both: |
|
492
|
|
|
// - html tags, so these can be ignored |
|
493
|
|
|
// - long strings of characters without breaking characters |
|
494
|
|
|
return preg_replace_callback('/<[^>]*>|[^<> ]{12,}/', function ($match) { |
|
495
|
|
|
// if match is an html tag, return it intact |
|
496
|
|
|
if ($match[0][0] == '<') return $match[0]; |
|
497
|
|
|
// its a long string without a breaking character, |
|
498
|
|
|
// make certain characters into breaking characters by inserting a |
|
499
|
|
|
// word break opportunity (<wbr> tag) in front of them. |
|
500
|
|
|
$regex = <<< REGEX |
|
501
|
|
|
(?(?= # start a conditional expression with a positive look ahead ... |
|
502
|
|
|
&\#?\\w{1,6};) # ... for html entities - we don't want to split them (ok to catch some invalid combinations) |
|
503
|
|
|
&\#?\\w{1,6}; # yes pattern - a quicker match for the html entity, since we know we have one |
|
504
|
|
|
| |
|
505
|
|
|
[?/,&\#;:] # no pattern - any other group of 'special' characters to insert a breaking character after |
|
506
|
|
|
)+ # end conditional expression |
|
507
|
|
|
REGEX; |
|
508
|
|
|
return preg_replace('<'.$regex.'>xu', '\0<wbr>', $match[0]); |
|
509
|
|
|
}, $diffhtml); |
|
510
|
|
|
} |
|
511
|
|
|
|
|
512
|
|
|
} |
|
513
|
|
|
|
splitbrain /
dokuwiki
