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PhabricatorDocumentRenderingEngine.php
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Wed, Jul 31, 04:18

PhabricatorDocumentRenderingEngine.php
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<?php
abstract class PhabricatorDocumentRenderingEngine
extends Phobject {
private $request;
private $controller;
private $activeEngine;
private $ref;
final public function setRequest(AphrontRequest $request) {
$this->request = $request;
return $this;
}
final public function getRequest() {
if (!$this->request) {
throw new PhutilInvalidStateException('setRequest');
}
return $this->request;
}
final public function setController(PhabricatorController $controller) {
$this->controller = $controller;
return $this;
}
final public function getController() {
if (!$this->controller) {
throw new PhutilInvalidStateException('setController');
}
return $this->controller;
}
final protected function getActiveEngine() {
return $this->activeEngine;
}
final protected function getRef() {
return $this->ref;
}
final public function newDocumentView(PhabricatorDocumentRef $ref) {
$request = $this->getRequest();
$viewer = $request->getViewer();
$engines = PhabricatorDocumentEngine::getEnginesForRef($viewer, $ref);
$engine_key = $this->getSelectedDocumentEngineKey();
if (!isset($engines[$engine_key])) {
$engine_key = head_key($engines);
}
$engine = $engines[$engine_key];
$lines = $this->getSelectedLineRange();
if ($lines) {
$engine->setHighlightedLines(range($lines[0], $lines[1]));
}
$encode_setting = $request->getStr('encode');
if (strlen($encode_setting)) {
$engine->setEncodingConfiguration($encode_setting);
}
$highlight_setting = $request->getStr('highlight');
if (strlen($highlight_setting)) {
$engine->setHighlightingConfiguration($highlight_setting);
}
$views = array();
foreach ($engines as $candidate_key => $candidate_engine) {
$label = $candidate_engine->getViewAsLabel($ref);
if ($label === null) {
continue;
}
$view_uri = $this->newRefViewURI($ref, $candidate_engine);
$view_icon = $candidate_engine->getViewAsIconIcon($ref);
$view_color = $candidate_engine->getViewAsIconColor($ref);
$loading = $candidate_engine->newLoadingContent($ref);
$views[] = array(
'viewKey' => $candidate_engine->getDocumentEngineKey(),
'icon' => $view_icon,
'color' => $view_color,
'name' => $label,
'engineURI' => $this->newRefRenderURI($ref, $candidate_engine),
'viewURI' => $view_uri,
'loadingMarkup' => hsprintf('%s', $loading),
'canEncode' => $candidate_engine->canConfigureEncoding($ref),
'canHighlight' => $candidate_engine->canConfigureHighlighting($ref),
'canBlame' => $candidate_engine->canBlame($ref),
);
}
$viewport_id = celerity_generate_unique_node_id();
$control_id = celerity_generate_unique_node_id();
$icon = $engine->newDocumentIcon($ref);
$config = array(
'controlID' => $control_id,
);
if ($engine->shouldRenderAsync($ref)) {
$content = $engine->newLoadingContent($ref);
$config['next'] = 'render';
} else {
$this->willRenderRef($ref);
$content = $engine->newDocument($ref);
if ($engine->canBlame($ref)) {
$config['next'] = 'blame';
}
}
Javelin::initBehavior('document-engine', $config);
$viewport = phutil_tag(
'div',
array(
'id' => $viewport_id,
),
$content);
$meta = array(
'viewportID' => $viewport_id,
'viewKey' => $engine->getDocumentEngineKey(),
'views' => $views,
'encode' => array(
'icon' => 'fa-font',
'name' => pht('Change Text Encoding...'),
'uri' => '/services/encoding/',
'value' => $encode_setting,
),
'highlight' => array(
'icon' => 'fa-lightbulb-o',
'name' => pht('Highlight As...'),
'uri' => '/services/highlight/',
'value' => $highlight_setting,
),
'blame' => array(
'uri' => $ref->getBlameURI(),
'value' => null,
),
);
$view_button = id(new PHUIButtonView())
->setTag('a')
->setText(pht('View Options'))
->setIcon('fa-file-image-o')
->setColor(PHUIButtonView::GREY)
->setID($control_id)
->setMetadata($meta)
->setDropdown(true)
->addSigil('document-engine-view-dropdown');
$header = id(new PHUIHeaderView())
->setHeaderIcon($icon)
->setHeader($ref->getName())
->addActionLink($view_button);
return id(new PHUIObjectBoxView())
->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
->setHeader($header)
->appendChild($viewport);
}
final public function newRenderResponse(PhabricatorDocumentRef $ref) {
$this->willRenderRef($ref);
$request = $this->getRequest();
$viewer = $request->getViewer();
$engines = PhabricatorDocumentEngine::getEnginesForRef($viewer, $ref);
$engine_key = $this->getSelectedDocumentEngineKey();
if (!isset($engines[$engine_key])) {
return $this->newErrorResponse(
pht(
'The engine ("%s") is unknown, or unable to render this document.',
$engine_key));
}
$engine = $engines[$engine_key];
$this->activeEngine = $engine;
$encode_setting = $request->getStr('encode');
if (strlen($encode_setting)) {
$engine->setEncodingConfiguration($encode_setting);
}
$highlight_setting = $request->getStr('highlight');
if (strlen($highlight_setting)) {
$engine->setHighlightingConfiguration($highlight_setting);
}
try {
$content = $engine->newDocument($ref);
} catch (Exception $ex) {
return $this->newErrorResponse($ex->getMessage());
}
return $this->newContentResponse($content);
}
public function newErrorResponse($message) {
$container = phutil_tag(
'div',
array(
'class' => 'document-engine-error',
),
array(
id(new PHUIIconView())
->setIcon('fa-exclamation-triangle red'),
' ',
$message,
));
return $this->newContentResponse($container);
}
private function newContentResponse($content) {
$request = $this->getRequest();
$viewer = $request->getViewer();
$controller = $this->getController();
if ($request->isAjax()) {
return id(new AphrontAjaxResponse())
->setContent(
array(
'markup' => hsprintf('%s', $content),
));
}
$crumbs = $this->newCrumbs();
$crumbs->setBorder(true);
$content_frame = id(new PHUIObjectBoxView())
->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
->appendChild($content);
$page_frame = id(new PHUITwoColumnView())
->setFooter($content_frame);
$title = array();
$ref = $this->getRef();
if ($ref) {
$title = array(
$ref->getName(),
pht('Standalone'),
);
} else {
$title = pht('Document');
}
return $controller->newPage()
->setCrumbs($crumbs)
->setTitle($title)
->appendChild($page_frame);
}
protected function newCrumbs() {
$engine = $this->getActiveEngine();
$controller = $this->getController();
$crumbs = $controller->buildApplicationCrumbsForEditEngine();
$ref = $this->getRef();
$this->addApplicationCrumbs($crumbs, $ref);
if ($ref) {
$label = $engine->getViewAsLabel($ref);
if ($label) {
$crumbs->addTextCrumb($label);
}
}
return $crumbs;
}
abstract protected function newRefViewURI(
PhabricatorDocumentRef $ref,
PhabricatorDocumentEngine $engine);
abstract protected function newRefRenderURI(
PhabricatorDocumentRef $ref,
PhabricatorDocumentEngine $engine);
protected function getSelectedDocumentEngineKey() {
return $this->getRequest()->getURIData('engineKey');
}
protected function getSelectedLineRange() {
return $this->getRequest()->getURILineRange('lines', 1000);
}
protected function addApplicationCrumbs(
PHUICrumbsView $crumbs,
PhabricatorDocumentRef $ref = null) {
return;
}
protected function willRenderRef(PhabricatorDocumentRef $ref) {
return;
}
}

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