Make passing objects from website to server possible

If you get an object from the server and want to pass it back to the
server via a function the id of the object is passed instead of the
whole json object. On the server side QMetaObjectPublisher::invokeMethod
now looks up the object in QMetaObjectPublisher::wrappedObjects by the
passed object-id.

Task-number: QTBUG-50075
Change-Id: Id0df2dfaa79bcba12ca48391ae7537ac1a086898
Reviewed-by: Milian Wolff <milian.wolff@kdab.com>

1 files changed, 12 insertions, 4 deletions

diff --git a/src/webchannel/qwebchannel.js b/src/webchannel/qwebchannel.js
index d8c28bc..148e70d 100644
--- a/src/webchannel/qwebchannel.js
+++ b/src/webchannel/qwebchannel.js
@@ -324,10 +324,15 @@ function QObject(name, data, webChannel)
             var args = [];
             var callback;
             for (var i = 0; i < arguments.length; ++i) {
-                if (typeof arguments[i] === "function")
-                    callback = arguments[i];
+                var argument = arguments[i];
+                if (typeof argument === "function")
+                    callback = argument;
+                else if (argument instanceof QObject && webChannel.objects[argument.__id__] !== undefined)
+                    args.push({
+                        "id": argument.__id__
+                    });
                 else
-                    args.push(arguments[i]);
+                    args.push(argument);
             }
 
             webChannel.exec({
@@ -381,11 +386,14 @@ function QObject(name, data, webChannel)
                     return;
                 }
                 object.__propertyCache__[propertyIndex] = value;
+                var valueToSend = value;
+                if (valueToSend instanceof QObject && webChannel.objects[valueToSend.__id__] !== undefined)
+                    valueToSend = { "id": valueToSend.__id__ };
                 webChannel.exec({
                     "type": QWebChannelMessageTypes.setProperty,
                     "object": object.__id__,
                     "property": propertyIndex,
-                    "value": value
+                    "value": valueToSend
                 });
             }
         });