Add toJson() formatting argument to QJsonDocument interface

The writer delegate used by QJsonDocument to produce a Json QByteArray
supports generating a human readable Json (with spaces and carriage
returns that reflect the Json structure) and a less human readable (no
spaces nor carriage returns) but more compact Json.

The method toJson() was extended with a format argument to support
the compact Json generation.

Task-number: QTBUG-28815
Change-Id: I8d13849ab9ab6ed7c645011260251dc14a8629d2
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Debao Zhang <hello@debao.me>

1 files changed, 12 insertions, 1 deletions

diff --git a/src/corelib/json/qjsondocument.h b/src/corelib/json/qjsondocument.h
index 675ee75dbf..0bb21d89cf 100644
--- a/src/corelib/json/qjsondocument.h
+++ b/src/corelib/json/qjsondocument.h
@@ -109,8 +109,19 @@ public:
     static QJsonDocument fromVariant(const QVariant &variant);
     QVariant toVariant() const;
 
+    enum JsonFormat {
+        Indented,
+        Compact
+    };
+
     static QJsonDocument fromJson(const QByteArray &json, QJsonParseError *error = 0);
-    QByteArray toJson() const;
+
+#ifdef Q_QDOC
+    QByteArray toJson(JsonFormat format = Indented) const;
+#else
+    QByteArray toJson() const; //### Merge in Qt6
+    QByteArray toJson(JsonFormat format) const;
+#endif
 
     bool isEmpty() const;
     bool isArray() const;