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<?php
/**
* TimedText page display the current video with subtitles to the right.
*
* Future features for this page"
* @todo add srt download links
* @todo parse and validate srt files
* @todo link-in or include the universal subtitles editor
*/
class TimedTextPage extends Article {
// The width of the video plane:
static private $videoWidth = 400;
static private $knownTimedTextExtensions = array( 'srt', 'vtt' );
public function view() {
$request = $this->getContext()->getRequest();
$out = $this->getContext()->getOutput();
$user = $this->getContext()->getUser();
$diff = $request->getVal( 'diff' );
if ( $this->getTitle()->getNamespace() != NS_TIMEDTEXT || isset( $diff ) ) {
parent::view();
return;
}
$this->renderOutput( $out );
}
/**
* Render TimedText to given output
* @param $out OutputPage
*/
public function renderOutput( $out ){
// parse page title:
$titleParts = explode( '.', $this->getTitle()->getDBkey() );
$timedTextExtension = array_pop( $titleParts );
$languageKey = array_pop( $titleParts );
$oldid = $this->getOldID();
# Are we looking at an old revision
if ( $oldid && $this->mRevision ) {
$this->fetchContentObject();
$out->setRevisionId( $this->getRevIdFetched() );
$this->setOldSubtitle( $oldid );
if ( !$this->showDeletedRevisionHeader() ) {
wfDebug( __METHOD__ . ": cannot view deleted revision\n" );
return;
}
}
// Check for File name without text extension:
// i.e TimedText:myfile.ogg
$fileTitle = Title::newFromText( $this->getTitle()->getDBkey(), NS_FILE );
$file = wfFindFile( $fileTitle );
// Check for a valid srt page, present redirect form for the full title match:
if( !in_array( $timedTextExtension, self::$knownTimedTextExtensions ) && $file && $file->exists() ){
if( $file->isLocal() ){
$this->doRedirectToPageForm( $fileTitle );
} else {
$this->doLinkToRemote( $file );
}
return;
}
// Check for File name with text extension ( from remaning parts of title )
// i.e TimedText:myfile.ogg.en.srt
$videoTitle = Title::newFromText( implode('.', $titleParts ), NS_FILE );
// Check for remote file
$basefile = wfFindFile( $videoTitle );
if ( !$basefile ) {
$out->addHTML( wfMessage( 'timedmedia-subtitle-no-video' )->escaped() );
return;
}
if( !$basefile->isLocal() ){
$this->doLinkToRemote( $basefile );
return;
}
// Look up the language name:
$language = $out->getLanguage()->getCode();
$languages = Language::fetchLanguageNames( $language, 'all' );
if( isset( $languages[ $languageKey ] ) ) {
$languageName = $languages[ $languageKey ];
} else {
$languageName = $languageKey;
}
// Set title
$message = $this->exists() ?
'mwe-timedtext-language-subtitles-for-clip' :
'mwe-timedtext-language-no-subtitles-for-clip';
$out->setPageTitle( wfMessage($message, $languageName, $videoTitle ) );
// Get the video with with a max of 600 pixel page
$out->addHTML(
xml::tags( 'table', array( 'style'=> 'border:none' ),
xml::tags( 'tr', null,
xml::tags( 'td', array( 'valign' => 'top', 'width' => self::$videoWidth ),
$this->getVideoHTML( $videoTitle )
) .
xml::tags( 'td', array( 'valign' => 'top' ) , $this->getTimedTextHTML( $languageName ) )
)
)
);
}
/**
* Timed text or file is hosted on remote repo, Add a short description and link to foring repo
* @param $file File the base file
*/
function doLinkToRemote( $file ){
$output = $this->getContext()->getOutput();
$output->setPageTitle( wfMessage( 'timedmedia-subtitle-remote',
$file->getRepo()->getDisplayName() ) );
$output->addHTML( wfMessage( 'timedmedia-subtitle-remote-link',
$file->getDescriptionUrl(), $file->getRepo()->getDisplayName() ) );
}
function doRedirectToPageForm(){
$lang = $this->getContext()->getLanguage();
$out = $this->getContext()->getOutput();
// Set the page title:
$out->setPageTitle( wfMessage( 'timedmedia-subtitle-new' ) );
// Look up the language name:
$language = $out->getLanguage()->getCode();
$attrs = array( 'id' => 'timedmedia-tt-input' );
$langSelect = Xml::languageSelector( $language, false, null, $attrs, null );
$out->addHTML(
Xml::tags('div', array( 'style' => 'text-align:center' ),
Xml::tags( 'div', null,
wfMessage( 'timedmedia-subtitle-new-desc', $lang->getCode() )->parse()
) .
$langSelect[1] .
Xml::tags( 'button',
array( 'id' => 'timedmedia-tt-go' ),
wfMessage( 'timedmedia-subtitle-new-go' )->escaped()
)
)
);
$out->addModules( 'ext.tmh.TimedTextSelector' );
}
/**
* Gets the video HTML ( with the current language set as default )
* @param $videoTitle string
* @return String
*/
private function getVideoHTML( $videoTitle ){
// Get the video embed:
$file = wfFindFile( $videoTitle );
if( !$file ){
return wfMessage( 'timedmedia-subtitle-no-video' )->escaped();
} else {
$videoTransform= $file->transform(
array(
'width' => self::$videoWidth
)
);
return $videoTransform->toHTML();
}
}
/**
* Gets an HTML representation of the Timed Text
*
* @param $languageName string
* @return Message|string
*/
private function getTimedTextHTML( $languageName ){
if( !$this->exists() ){
return wfMessage( 'timedmedia-subtitle-no-subtitles', $languageName );
}
return Xml::element(
'pre',
array( 'style' => 'margin-top: 0px;' ),
$this->getContent(),
false
);
}
}
|
