Merge branch 'make-feature-mod-purpose-just-for-version4' into 'testing4'

make feature_of_purpose just for V4

See merge request moodle_l2p/moodle-mod_pdfannotator!206

lib.php

@@ -29,6 +29,12 @@ require_once($CFG->dirroot . '/mod/pdfannotator/locallib.php');
  * @return mixed True if module supports feature, false if not, null if doesn't know
  */
 function pdfannotator_supports($feature) {
+    if (defined('FEATURE_MOD_PURPOSE')) {
+        // Only defined in M4.0+.
+        if ($feature === FEATURE_MOD_PURPOSE) {
+            return MOD_PURPOSE_COMMUNICATION;
+        }
+    }
     switch($feature) {
         case FEATURE_GROUPS:
             return true;
@@ -54,8 +60,6 @@ function pdfannotator_supports($feature) {
             return true;
         case FEATURE_COMMENT:
             return true;
-        case FEATURE_MOD_PURPOSE:
-            return MOD_PURPOSE_COMMUNICATION;
         default:
             return null;
     }

version.php

@@ -25,7 +25,7 @@
 defined('MOODLE_INTERNAL') || die();
 
 $plugin->component = 'mod_pdfannotator';
-$plugin->version   = 2023033000;
+$plugin->version   = 2023040400;
 $plugin->release  = 'PDF Annotator v1.5 release 3';
 $plugin->requires  = 2021051700;
 $plugin->maturity  = MATURITY_STABLE;