id = $id; // init preference $this->preference['fromAjax'] = false; // see doluwiki\Ajax::callMediadiff() $this->preference['showIntro'] = false; $this->preference['difftype'] = 'both'; // media diff view type: both, opacity or portions $this->setChangeLog(); } /** @inheritdoc */ protected function setChangeLog() { $this->changelog = new MediaChangeLog($this->id); } /** @inheritdoc */ protected function preProcess() { parent::preProcess(); if (!isset($this->old_rev, $this->new_rev)) { // no revision was given, compare previous to current $revs = $this->changelog->getRevisions(0, 1); $this->old_rev = file_exists(mediaFN($this->id, $revs[0])) ? $revs[0] : ''; $this->new_rev = ''; } } /** * Shows difference between two revisions of media * * @author Kate Arzamastseva */ public function show() { global $conf; $ns = getNS($this->id); $auth = auth_quickaclcheck("$ns:*"); if ($auth < AUTH_READ || !$this->id || !$conf['mediarevisions']) return ''; // determine left and right revision if (!isset($this->old_rev, $this->new_rev)) $this->preProcess(); [$l_rev, $r_rev] = [$this->old_rev, $this->new_rev]; // prepare event data // NOTE: MEDIA_DIFF event does not found in DokuWiki Event List? $data = array(); $data[0] = $this->id; $data[1] = $l_rev; $data[2] = $r_rev; $data[3] = $ns; $data[4] = $auth; // permission level $data[5] = $this->preference['fromAjax']; // trigger event Event::createAndTrigger('MEDIA_DIFF', $data, null, false); if (is_array($data) && count($data) === 6) { $this->id = $data[0]; $l_rev = $data[1]; $r_rev = $data[2]; $ns = $data[3]; $auth = $data[4]; $this->preference['fromAjax'] = $data[5]; } else { return ''; } $l_meta = new \JpegMeta(mediaFN($this->id, $l_rev)); $r_meta = new \JpegMeta(mediaFN($this->id, $r_rev)); $is_img = preg_match('/\.(jpe?g|gif|png)$/', $this->id); if ($is_img) { // get image width and height for the mediamanager preview panel $l_size = media_image_preview_size($this->id, $l_rev, $l_meta); $r_size = media_image_preview_size($this->id, $r_rev, $r_meta); // re-check image, ensure minimum image width for showImageDiff() $is_img = ($l_size && $r_size && ($l_size[0] >= 30 || $r_size[0] >= 30)); } // determine requested diff view type if (!$is_img) { $this->preference['difftype'] = 'both'; } // display intro if ($this->preference['showIntro']) echo p_locale_xhtml('diff'); // print form to choose diff view type if ($is_img && !$this->preference['fromAjax']) { $this->showDiffViewSelector(); echo '

'; } switch ($this->preference['difftype']) { case 'opacity': case 'portions': $this->showImageDiff($l_rev, $r_rev, $l_size, $r_size, $difftype); break; case 'both': default: $this->showFileDiff($l_rev, $r_rev, $l_meta, $r_meta, $auth); break; } if ($is_img && !$this->preference['fromAjax']) { echo '

'; } } /** * Print form to choose diff view type * the dropdown is to be added through JavaScript, see lib/scripts/media.js */ protected function showDiffViewSelector() { echo '

'; $form = new Form([ 'id' => 'mediamanager__form_diffview', 'action' => media_managerURL([], '&'), 'method' => 'get', 'class' => 'diffView', ]); $form->addTagOpen('div')->addClass('no'); $form->setHiddenField('sectok', null); $form->setHiddenField('mediado', 'diff'); $form->setHiddenField('rev2[0]', $this->old_rev ?: 'current'); $form->setHiddenField('rev2[1]', $this->new_rev ?: 'current'); $form->addTagClose('div'); echo $form->toHTML(); echo '

'; // .diffoptions } /** * Prints two images side by side * and slider * * @author Kate Arzamastseva * * @param string|int $l_rev revision timestamp, or empty string * @param string|int $r_rev revision timestamp, or empty string * @param array $l_size array with width and height * @param array $r_size array with width and height * @param string $type diff view type: opacity or portions */ protected function showImageDiff($l_rev, $r_rev, $l_size, $r_size, $type = null) { if (!isset($type)) { $type = $this->preference['difftype']; } // adjust image width, right side (newer) has priority if ($l_size != $r_size) { if ($r_size[0] > $l_size[0]) { $l_size = $r_size; } } $l_src = ml($this->id, ['rev' => $l_rev, 'h' => $l_size[1], 'w' => $l_size[0]]); $r_src = ml($this->id, ['rev' => $r_rev, 'h' => $l_size[1], 'w' => $l_size[0]]); // slider echo '

'; // two images in divs echo '

'; echo '

'; echo '

'; echo '

'; echo '

'; echo '

'; echo '

'; echo '

'; } /** * Shows difference between two revisions of media file * * @author Kate Arzamastseva * * @param string|int $l_rev revision timestamp, or empty string * @param string|int $r_rev revision timestamp, or empty string * @param JpegMeta $l_meta * @param JpegMeta $r_meta * @param int $auth permission level */ protected function showFileDiff($l_rev, $r_rev, $l_meta, $r_meta, $auth) { list($l_head, $r_head) = $this->buildDiffHead($l_rev, $r_rev); echo '

'; echo ''; echo ''; echo ''; echo ''; echo ''; echo ''; echo ''; echo ''; echo ''; echo ''; echo ''; echo ''; echo ''; $l_tags = media_file_tags($l_meta); $r_tags = media_file_tags($r_meta); // FIXME r_tags-only stuff foreach ($l_tags as $key => $l_tag) { if ($l_tag['value'] != $r_tags[$key]['value']) { $r_tags[$key]['highlighted'] = true; $l_tags[$key]['highlighted'] = true; } elseif (!$l_tag['value'] || !$r_tags[$key]['value']) { unset($r_tags[$key]); unset($l_tags[$key]); } } echo ''; foreach (array($l_tags, $r_tags) as $tags) { echo ''; } echo ''; echo '

'. $l_head .'	'. $r_head .'
'; media_preview($this->id, $auth, $l_rev, $l_meta); // $auth not used in media_preview()? echo '	'; media_preview($this->id, $auth, $r_rev, $r_meta); echo '
'; media_preview_buttons($this->id, $auth, $l_rev); // $auth used in media_preview_buttons() echo '	'; media_preview_buttons($this->id, $auth, $r_rev); echo '
'; echo ' '; foreach ($tags as $tag) { $value = cleanText($tag['value']); if (!$value) $value = '-'; echo ' '.$lang[$tag['tag'][1]].' '; echo ' '; if ($tag['highlighted']) echo ''; if ($tag['tag'][2] == 'date') { echo dformat($value); } else { echo hsc($value); } if ($tag['highlighted']) echo ''; echo ' '; } echo ' '; echo '

'; echo '

'; } }