OO-4878: Make sure the OnlyOffice JS-Library is loaded and ready before invoked

src/main/java/org/olat/core/commons/services/doceditor/onlyoffice/ui/_content/editor.html

@@ -8,9 +8,21 @@
 		<script src="$apiUrl"></script>
 		<script>
 		/* <![CDATA[ */
-			jQuery('$id').ready(function(){
-				new DocsAPI.DocEditor("$id", $apiConfig);
-			});
+		## Make sure the OnlyOffice JS-Library is loaded and ready.
+		function loadEditor() {
+			var waitForLoad = function() {
+				if (typeof DocsAPI != "undefined") {
+					new DocsAPI.DocEditor("$id", $apiConfig);
+				} else {
+					window.setTimeout(waitForLoad, 500);
+				}
+			};
+			window.setTimeout(waitForLoad, 500);
+		}
+
+		jQuery("$id").ready(function() {
+			loadEditor();
+		});
 		/* ]]> */
 		</script>
 	#end

src/main/java/org/olat/core/commons/services/doceditor/ui/_content/standalone_open.html

@@ -3,10 +3,4 @@
 	<div class="o_button_group">
 		$r.render("open.button")
 	</div>
-</div>
-<script>
+</div>
\ No newline at end of file
-/* <![CDATA[ */
-##jQuery(document).ready(function() { $r.backgroundCommand("open"); })
-##jQuery(document).ready(function() { $r.openJavaScriptCommand("open")); })
-/* ]]> */
-</script>
\ No newline at end of file