Derive from GlModelViewer

Signed-off-by: Justin Georgi <justin.georgi@gmail.com>

includes/AnatImageHandler.php

@@ -0,0 +1,63 @@
+<?php
+namespace MediaWiki\Extension\AnatImageViewer;
+
+use ImageHandler;
+use BitmapMetadataHandler;
+use Html;
+
+class AnatImageHandler extends ImageHandler {
+    private const ANNOT_VERSION = '0.1';
+
+    /**
+     * Model cannot be displayed directly in a browser but can be rendered.
+     * 
+     * @param File $file
+     * @return bool
+     */
+    public function mustRender( $file ) {
+        return true;
+    }
+
+    /**
+     * Model can be rendered.
+     * 
+	 * @param File $file
+	 * @return bool
+	 */
+	public function canRender( $file ) {
+		return true;
+	}
+
+    /**
+     * Get a MediaTransformOutput object representing the transformed output.
+     * 
+     * @param File	$image
+     * @param string	$dstPath	Filesystem destination path
+     * @param string	$dstUrl	Destination URL to use in output HTML
+     * @param array	$params	Arbitrary set of parameters validated by $this->validateParam()
+     * @param int	$flags	A bitfield, may contain self::TRANSFORM_LATER
+     * @return MediaTransformOutput
+     */
+    public function doTransform($image, $dstPath, $dstUrl, $params, $flags = 0) {
+        return new AnatImageTransformOutput($image, $params);
+    }
+
+    /**
+     * Small helper function to display information on the browser console
+     * 
+     * Usage:
+     * echo '<script>';
+     * self::console_log('logged string');
+     * echo '</script>';
+     * 
+     * @param $data information to display
+     * @param bool $add_script_tags true to put information is inside complete script tag
+     */
+    public static function console_log($data, $add_script_tags = false) {
+        $command = 'console.log('. json_encode($data, JSON_HEX_TAG).');';
+        if ($add_script_tags) {
+            $command = '<script>'. $command . '</script>';
+        }
+        echo $command;
+    }
+}