silverstripe-docsviewer/code/controllers/DocumentationViewer.php
2014-09-07 20:35:08 +12:00

523 lines
12 KiB
PHP
Executable File

<?php
/**
* Documentation Viewer.
*
* Reads the bundled markdown files from documentation folders and displays the
* output (either via markdown or plain text).
*
* For more documentation on how to use this class see the documentation in the
* docs folder.
*
* @package docsviewer
*/
class DocumentationViewer extends Controller {
/**
* @var array
*/
private static $extensions = array(
'DocumentationViewerVersionWarning'
);
/**
* @var array
*/
private static $allowed_actions = array(
'home',
'all',
'LanguageForm',
'doLanguageForm',
'handleRequest',
'DocumentationSearchForm',
'results'
);
/**
* @var string
*/
private static $google_analytics_code = '';
/**
* @var string
*/
private static $documentation_title = 'SilverStripe Documentation';
/**
* The string name of the currently accessed {@link DocumentationEntity}
* object. To access the entire object use {@link getEntity()}
*
* @var string
*/
protected $entity = '';
/**
* @var DocumentationPage
*/
protected $record;
/**
* @config
*
* @var string same as the routing pattern set through Director::addRules().
*/
private static $link_base = 'dev/docs/';
/**
* @config
*
* @var string|array Optional permission check
*/
private static $check_permission = 'ADMIN';
/**
* @var array map of modules to edit links.
* @see {@link getEditLink()}
*/
private static $edit_links = array();
/**
* @var array
*/
private static $url_handlers = array(
'$Action' => 'handleAction'
);
/**
*
*/
public function init() {
parent::init();
if(!$this->canView()) {
return Security::permissionFailure($this);
}
Requirements::javascript(THIRDPARTY_DIR .'/jquery/jquery.js');
Requirements::combine_files(
'syntaxhighlighter.js',
array(
DOCSVIEWER_DIR .'/thirdparty/syntaxhighlighter/scripts/shCore.js',
DOCSVIEWER_DIR . '/thirdparty/syntaxhighlighter/scripts/shBrushJScript.js',
DOCSVIEWER_DIR . '/thirdparty/syntaxhighlighter/scripts/shBrushPhp.js',
DOCSVIEWER_DIR . '/thirdparty/syntaxhighlighter/scripts/shBrushXml.js',
DOCSVIEWER_DIR . '/thirdparty/syntaxhighlighter/scripts/shBrushCss.js',
DOCSVIEWER_DIR . '/thirdparty/syntaxhighlighter/scripts/shBrushYaml.js',
DOCSVIEWER_DIR . '/thirdparty/syntaxhighlighter/scripts/shBrushBash.js',
DOCSVIEWER_DIR . '/javascript/shBrushSS.js'
)
);
Requirements::javascript(DOCSVIEWER_DIR .'/javascript/DocumentationViewer.js');
Requirements::css(DOCSVIEWER_DIR .'/css/shSilverStripeDocs.css');
Requirements::combine_files('docs.css', array(
DOCSVIEWER_DIR .'/css/normalize.css',
DOCSVIEWER_DIR .'/css/utilities.css',
DOCSVIEWER_DIR .'/css/typography.css',
DOCSVIEWER_DIR .'/css/forms.css',
DOCSVIEWER_DIR .'/css/layout.css',
DOCSVIEWER_DIR .'/css/small.css'
));
}
/**
* Can the user view this documentation. Hides all functionality for private
* wikis.
*
* @return bool
*/
public function canView() {
return (Director::isDev() || Director::is_cli() ||
!self::$check_permission ||
Permission::check(self::$check_permission)
);
}
/**
* Overloaded to avoid "action doesn't exist" errors - all URL parts in
* this controller are virtual and handled through handleRequest(), not
* controller methods.
*
* @param $request
* @param $action
*
* @return SS_HTTPResponse
*/
public function handleAction($request, $action) {
$action = $request->param('Action');
try {
if(preg_match('/DocumentationSearchForm/', $request->getURL())) {
$action = 'results';
}
$response = parent::handleAction($request, $action);
} catch(SS_HTTPResponse_Exception $e) {
if(strpos($e->getMessage(), 'does not exist') !== FALSE) {
return $this;
} else {
throw $e;
}
}
return $response;
}
/**
* Handle the url parsing for the documentation. In order to make this
* user friendly this does some tricky things..
*
* @return SS_HTTPResponse
*/
public function handleRequest(SS_HTTPRequest $request, DataModel $model) {
$response = parent::handleRequest($request, $model);
// if we submitted a form, let that pass
if(!$request->isGET() || isset($_GET['action_results'])) {
return $response;
}
if($response->getStatusCode() !== 200) {
// look up the manifest to see find the nearest match against the
// list of the URL. If the URL exists then set that as the current
// page to match against.
if($record = $this->getManifest()->getPage($this->request->getURL())) {
$this->record = $record;
$type = get_class($this->record);
$body = $this->renderWith(array(
"DocumentationViewer_{$type}",
"DocumentationViewer"
));
return new SS_HTTPResponse($body, 200);
}
else {
$this->init();
$class = get_class($this);
$body = $this->renderWith(array("{$class}_error", $class));
return new SS_HTTPResponse($body, 404);
}
}
return $response;
}
/**
* Returns the current version. If no version is set then it is the current
* set version so need to pull that from the {@link Entity}.
*
* @return string
*/
public function getVersion() {
return ($this->record) ? $this->record->getEntity()->getVersion() : null;
}
/**
* Returns the current language.
*
* @return string
*/
public function getLanguage() {
return ($this->record) ? $this->record->getEntity()->getLanguage() : null;
}
/**
*
*/
public function getManifest() {
return new DocumentationManifest((isset($_GET['flush'])));
}
/**
* Return all the available languages for the {@link Entity}.
*
* @return array
*/
public function getLanguages() {
return ($this->record) ? $this->record->getEntity()->getSupportedLanguages() : null;
}
/**
* Get all the versions loaded for the current {@link DocumentationEntity}.
* the file system then they are loaded under the 'Current' name space.
*
* @param String $entity name of {@link Entity} to limit it to eg sapphire
* @return ArrayList
*/
public function getVersions() {
return ($this->record) ? $this->record->getEntity()->getVersions() : null;
}
/**
* @return DocumentationEntityVersion
*/
public function getStableVersion() {
return ($this->record) ? $this->record->getEntity()->getStableVersion() : null;
}
/**
* Generate a list of entities which have been registered and which can
* be documented.
*
* @return DataObject
*/
public function getEntities() {
$entities = $this->getManifest()->getEntities();
$output = new ArrayList();
if($entities) {
foreach($entities as $entity) {
$mode = 'link';
if($this->record) {
if($entity->hasRecord($this->record)) {
$mode = 'current';
}
}
$link = $entity->Link();
$output->push(new ArrayData(array(
'Title' => $entity->getTitle(),
'Link' => $link,
'LinkingMode' => $mode
)));
}
}
return $output;
}
/**
* Return the content for the page. If its an actual documentation page then
* display the content from the page, otherwise display the contents from
* the index.md file if its a folder
*
* @return HTMLText
*/
public function getContent() {
$page = $this->getPage();
return DBField::create_field("HTMLText", $page->getHTML());
}
/**
* Generate a list of breadcrumbs for the user.
*
* @return ArrayList
*/
public function getBreadcrumbs() {
if($this->record) {
return $this->getManifest()->generateBreadcrumbs($this->record);
}
}
/**
* @return DocumentationPage
*/
public function getPage() {
return $this->record;
}
/**
* Generate a string for the title tag in the URL.
*
* @return string
*/
public function getPageTitle() {
return ($this->record) ? $this->record->getBreadcrumbTitle() : null;
}
/**
* Return the base link to this documentation location.
*
* @return string
*/
public function Link($action = '') {
$link = Controller::join_links(
Director::absoluteBaseURL(),
Config::inst()->get('DocumentationViewer', 'link_base'),
$action
);
return $link;
}
public function AllPages() {
$pages = $this->getManifest()->getPages();
$output = new ArrayList();
foreach($pages as $url => $page) {
$output->push(new ArrayData(array(
'Link' => $url,
'Title' => $page['title'],
'FirstLetter' => strtoupper(substr($page['title'], 0, 1))
)));
}
return GroupedList::create($output->sort('Title', 'ASC'));
}
/**
* Build the language dropdown.
*
* @todo do this on a page by page rather than global
*
* @return Form
*/
public function LanguageForm() {
$langs = $this->getLanguages();
$fields = new FieldList(
$dropdown = new DropdownField(
'LangCode',
_t('DocumentationViewer.LANGUAGE', 'Language'),
$langs,
$this->Lang
)
);
$actions = new FieldList(
new FormAction('doLanguageForm', _t('DocumentationViewer.CHANGE', 'Change'))
);
return new Form($this, 'LanguageForm', $fields, $actions);
}
/**
* Process the language change
*
*/
public function doLanguageForm($data, $form) {
$this->Lang = (isset($data['LangCode'])) ? $data['LangCode'] : 'en';
return $this->redirect($this->Link());
}
/**
* Documentation Search Form. Allows filtering of the results by many entities
* and multiple versions.
*
* @return Form
*/
public function DocumentationSearchForm() {
if(!DocumentationSearch::enabled()) {
return false;
}
return new DocumentationSearchForm($this);
}
/**
* Sets the mapping between a entity name and the link for the end user
* to jump into editing the documentation.
*
* Some variables are replaced:
* - %version%
* - %entity%
* - %path%
* - %lang%
*
* For example to provide an edit link to the framework module in github:
*
* <code>
* DocumentationViewer::set_edit_link(
* 'framework',
* 'https://github.com/silverstripe/%entity%/edit/%version%/docs/%lang%/%path%',
* $opts
* ));
* </code>
*
* @param string module name
* @param string link
* @param array options ('rewritetrunktomaster')
*/
public static function set_edit_link($module, $link, $options = array()) {
self::$edit_links[$module] = array(
'url' => $link,
'options' => $options
);
}
/**
* Returns an edit link to the current page (optional).
*
* @return string
*/
public function getEditLink() {
$page = $this->getPage();
if($page) {
$entity = $page->getEntity();
if($entity && isset(self::$edit_links[$entity->title])) {
// build the edit link, using the version defined
$url = self::$edit_links[$entity->title];
$version = $this->getVersion();
if($version == "trunk" && (isset($url['options']['rewritetrunktomaster']))) {
if($url['options']['rewritetrunktomaster']) {
$version = "master";
}
}
return str_replace(
array('%entity%', '%lang%', '%version%', '%path%'),
array(
$entity->getBaseFolder(),
$this->getLanguage(),
$version,
ltrim($page->getPath(), '/')
),
$url['url']
);
}
}
return false;
}
/**
* Returns the next page. Either retrieves the sibling of the current page
* or return the next sibling of the parent page.
*
* @return DocumentationPage
*/
public function getNextPage() {
return ($this->record) ? $this->getManifest()->getNextPage($this->record->getPath()) : null;
}
/**
* Returns the previous page. Either returns the previous sibling or the
* parent of this page
*
* @return DocumentationPage
*/
public function getPreviousPage() {
return ($this->record) ? $this->getManifest()->getPreviousPage($this->record->getPath()) : null;
}
/**
* @return string
*/
public function getGoogleAnalyticsCode() {
$code = Config::inst()->get('DocumentationViewer', 'google_analytics_code');
if($code) {
return $code;
}
}
/**
* @return string
*/
public function getDocumentationTitle() {
return Config::inst()->get('DocumentationViewer', 'documentation_title');
}
}