142 lines
4.3 KiB
PHP
142 lines
4.3 KiB
PHP
<?php
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namespace MediaWiki\Extension\AnatImageViewer;
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use Devium\Toml\Toml;
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use MediaWiki\MediaWikiServices;
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use Content;
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use Title;
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use CodeContentHandler;
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use MediaWiki\Content\Renderer\ContentParseParams;
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use ParserOutput;
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use Html;
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class AnnotationHandler extends CodeContentHandler {
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private const ANNOT_VERSION = '0.1';
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public function __construct( $modelId = 'annotation' ) {
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parent::__construct( $modelId, [ CONTENT_FORMAT_TEXT ] );
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}
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protected function getContentClass() {
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return AnnotationContent::class;
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}
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/**
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* Only allow this content handler to be used in the Module namespace
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* @param Title $title
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* @return bool
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*/
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public function canBeUsedOn( Title $title ) {
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if ( $title->getNamespace() !== NS_AV_ANNOT ) {
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return false;
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}
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return parent::canBeUsedOn( $title );
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}
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/** @inheritDoc */
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public function supportsPreloadContent(): bool {
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return true;
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}
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/*
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public function serializeContent( Content $content, $format = null ) {
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}
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public function unserializeContent( $blob, $format = null ) {
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}
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*/
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public function makeEmptyContent() {
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return new AnnotationContent();
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}
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public function supportsDirectEditing() {
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return true;
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}
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protected function fillParserOutput( Content $content, ContentParseParams $cpoParams, ParserOutput &$output ) {
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self::console_log('Parsing the fucking thing', true);
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self::console_log($content, true);
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$metadata = toml_decode($content->getNativeData(), true);
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if (isset($metadata['baseImage'])) {
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$baseImage = MediaWikiServices::getInstance()->getRepoGroup()->findFile('File:' . $metadata['baseImage']);
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} else {
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$baseImage = false;
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}
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$output->setText( self::buildSvg($metadata,$baseImage) );
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}
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/**
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* Build annotated SVG from TOML metadata
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*
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* This takes in the metadata text from the file page (or the current editor)
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* and produces the html string for the svg with base image and annotations.
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*
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* @param string $metadata The metadata object parsed from the text
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* @param string $baseImageUrl The full url pointing to the base image to annotate
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* @param array $frameParams The additional user defined parameters for the viewer such as hotspot and view classes
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* @return string Html string of the complete model-viewer element inside a div container
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*/
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private function buildSvg($metadata, $baseImage) {
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//Gather basic data
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$elBaseImg = '';
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$vbHeight = 100;
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$vbWidth = 100;
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if ($baseImage) {
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$baseImageUrl = $baseImage->getFullUrl();
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$baseHeight = $baseImage->getHeight();
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$baseWidth = $baseImage->getWidth();
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$baseAspect = $baseHeight / $baseWidth;
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$vbWidth = 100 / sqrt($baseAspect);
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$vbHeight = $baseAspect * $vbWidth;
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$attrBase = array(
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'class' => 'annot-base',
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'preserveAspectRatio' => 'none',
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'width' => $vbWidth,
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'height' => $vbHeight,
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'href' => $baseImageUrl
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);
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$elBaseImg = Html::rawElement('image', $attrBase);
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}
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//Render and return svg
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$attrSvg = array(
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'class' => 'annot-svg',
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'version' => '1.1',
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'viewBox' => "0 0 {$vbWidth} {$vbHeight}",
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'xml:space' => 'preserve',
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'xmlns' => 'http://www.w3.org/2000/svg'
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);
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if ($this->parameters['width'] > 0) {
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$attrSvg['width'] = $this->parameters['width'];
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}
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elseif ($this->parameters['height'] > 0) {
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$attrSvg['height'] = $this->parameters['height'];
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}
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return Html::rawElement('svg', $attrSvg, $elBaseImg);
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}
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/**
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* Small helper function to display information on the browser console
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*
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* Usage:
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* echo '<script>';
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* self::console_log('logged string');
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* echo '</script>';
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*
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* @param $data information to display
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* @param bool $add_script_tags true to put information is inside complete script tag
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*/
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public static function console_log($data, $add_script_tags = false) {
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$command = 'console.log('. json_encode($data, JSON_HEX_TAG).');';
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if ($add_script_tags) {
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$command = '<script>'. $command . '</script>';
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}
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echo $command;
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}
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} |