Add annotation link to file pages

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

extension.json

@@ -34,6 +34,7 @@
     },
     "Hooks": {
         "AlternateEditPreview": "MediaWiki\\Extension\\AnatImageViewer\\AnnotationHooks::onAlternateEditPreview",
+        "ParserAfterTidy": "MediaWiki\\Extension\\AnatImageViewer\\AnnotationHooks::onParserAfterTidy",
         "EditFormPreloadText": "MediaWiki\\Extension\\AnatImageViewer\\AnnotationHooks::onEditFormPreloadText"
     },
     "ContentHandlers": {

includes/AnnotationHooks.php

@@ -1,6 +1,8 @@
 <?php
 namespace MediaWiki\Extension\AnatImageViewer;
 
+use Parser;
+
 class AnnotationHooks {
 
     /**
@@ -23,13 +25,23 @@ class AnnotationHooks {
         return true;
     }
 
+    /**
+     * MWHook: Add preloaded text to editor on page creation
+     * 
+     * @see https://www.mediawiki.org/wiki/Manual:Hooks/EditFormPreloadText
+     * 
+     * @param string $text editor text
+     * @param Title $Title title of the created page
+     * @return bool|void True or no return value to continue or false to abort
+     */
     public static function onEditFormPreloadText( &$text, &$title ) {
 		if ( $title->getNamespace() === NS_AV_ANNOT ) {
+            $titleText = $title->getBaseText();
             $text = <<<NEWAN
-            baseImage = ""
+            baseImage = "$titleText.jpg"
 
             [view]
-            direction = ""
+            direction = "L"
 
             # [annotation.1]
             # position =
@@ -40,6 +52,38 @@ class AnnotationHooks {
         return true;
     }
 
+    /**
+     * MWHook: Add text to page after parsing
+     * 
+     * @see https://www.mediawiki.org/wiki/Manual:Hooks/ParserAfterTidy
+     * 
+     * @param Parser $parser wikitext parser that was created the text
+     * @param string $text generated text
+     * @return bool|void True or no return value to continue or false to abort
+     */
+    public static function onParserAfterTidy( Parser $parser, &$text ) {
+        $title = $parser->getTitle();
+        if ($title->getNamespace() === NS_FILE) {
+            $titleText = $title->getBaseText();
+            $extPos = strpos($titleText,'.');
+            if ($extPos !== false) {
+                $imName = substr($titleText, 0, $extPos);
+            } else {
+                $imName = $titleText;
+            }
+            $findLoc = strpos($text, "<h3 data-mw-anchor");
+            if ($findLoc !== false) {
+                $mwLink = "[[Annotation:" . $imName . "]]";
+                $htmlLink = $parser->recursiveTagParseFully($mwLink);
+                $newText = <<<ANHEAD
+                <h2 id="fileannotate">Annotated File</h2>
+                Click below to create or edit an annotated version of this image.<br/>
+                ANHEAD;
+                $text = $text . $newText . $htmlLink;
+            }
+        }
+    }
+
     /**
      * Small helper function to display information on the browser console
      *