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PhabricatorRemarkupRuleImageMacro.php
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Created
Thu, Apr 3, 12:41

PhabricatorRemarkupRuleImageMacro.php
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<?php
final class PhabricatorRemarkupRuleImageMacro extends PhutilRemarkupRule {
private $macros;
const KEY_RULE_MACRO = 'rule.macro';
public function apply($text) {
return preg_replace_callback(
'@^\s*([a-zA-Z0-9:_\-]+)$@m',
array($this, 'markupImageMacro'),
$text);
}
public function markupImageMacro($matches) {
if ($this->macros === null) {
$this->macros = array();
$viewer = $this->getEngine()->getConfig('viewer');
$rows = id(new PhabricatorMacroQuery())
->setViewer($viewer)
->withStatus(PhabricatorMacroQuery::STATUS_ACTIVE)
->execute();
$this->macros = mpull($rows, 'getPHID', 'getName');
}
$name = (string)$matches[1];
if (empty($this->macros[$name])) {
return $matches[1];
}
$engine = $this->getEngine();
$metadata_key = self::KEY_RULE_MACRO;
$metadata = $engine->getTextMetadata($metadata_key, array());
$token = $engine->storeText('<macro>');
$metadata[] = array(
'token' => $token,
'phid' => $this->macros[$name],
'original' => $name,
);
$engine->setTextMetadata($metadata_key, $metadata);
return $token;
}
public function didMarkupText() {
$engine = $this->getEngine();
$metadata_key = self::KEY_RULE_MACRO;
$metadata = $engine->getTextMetadata($metadata_key, array());
if (!$metadata) {
return;
}
$phids = ipull($metadata, 'phid');
$viewer = $this->getEngine()->getConfig('viewer');
// Load all the macros.
$macros = id(new PhabricatorMacroQuery())
->setViewer($viewer)
->withStatus(PhabricatorMacroQuery::STATUS_ACTIVE)
->withPHIDs($phids)
->execute();
$macros = mpull($macros, null, 'getPHID');
// Load all the images and audio.
$file_phids = array_merge(
array_values(mpull($macros, 'getFilePHID')),
array_values(mpull($macros, 'getAudioPHID')));
$file_phids = array_filter($file_phids);
$files = array();
if ($file_phids) {
$files = id(new PhabricatorFileQuery())
->setViewer($viewer)
->withPHIDs($file_phids)
->execute();
$files = mpull($files, null, 'getPHID');
}
// Replace any macros that we couldn't load the macro or image for with
// the original text.
foreach ($metadata as $key => $spec) {
$macro = idx($macros, $spec['phid']);
if ($macro) {
$file = idx($files, $macro->getFilePHID());
if ($file) {
continue;
}
}
$engine->overwriteStoredText($spec['token'], $spec['original']);
unset($metadata[$key]);
}
foreach ($metadata as $spec) {
$macro = $macros[$spec['phid']];
$file = $files[$macro->getFilePHID()];
$src_uri = $file->getBestURI();
if ($this->getEngine()->isTextMode()) {
$result = $spec['original'].' <'.$src_uri.'>';
$engine->overwriteStoredText($spec['token'], $result);
continue;
}
$file_data = $file->getMetadata();
$style = null;
$height = idx($file_data, PhabricatorFile::METADATA_IMAGE_HEIGHT);
$width = idx($file_data, PhabricatorFile::METADATA_IMAGE_WIDTH);
if ($height && $width) {
$style = sprintf(
'height: %dpx; width: %dpx;',
$height,
$width);
}
$id = null;
$audio = idx($files, $macro->getAudioPHID());
$should_play = ($audio && $macro->getAudioBehavior() !=
PhabricatorFileImageMacro::AUDIO_BEHAVIOR_NONE);
if ($should_play) {
$id = celerity_generate_unique_node_id();
$loop = null;
switch ($macro->getAudioBehavior()) {
case PhabricatorFileImageMacro::AUDIO_BEHAVIOR_LOOP:
$loop = true;
break;
}
Javelin::initBehavior(
'audio-source',
array(
'sourceID' => $id,
'audioURI' => $audio->getBestURI(),
'loop' => $loop,
));
}
$result = $this->newTag(
'img',
array(
'id' => $id,
'src' => $src_uri,
'alt' => $spec['original'],
'title' => $spec['original'],
'style' => $style,
));
$engine->overwriteStoredText($spec['token'], $result);
}
$engine->setTextMetadata($metadata_key, array());
}
}

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