Fix bug 924 - "Allow QScriptValue to be accessed via []"

Reviewer: Marcelo Lira <marcelo.lira@openbossa.org>
          Renato Araújo <renato.filho@openbossa.org>

PySide/QtScript/typesystem_script.xml

@@ -49,6 +49,19 @@
         <enum-type name="PropertyFlag" flags="PropertyFlags"/>
         <enum-type name="ResolveFlag" flags="ResolveFlags"/>
         <enum-type name="SpecialValue"/>
+        <add-function signature="__mgetitem__">
+            <inject-code>
+                Shiboken::AutoDecRef key(PyObject_Str(_key));
+                QVariant res = %CPPSELF.property(PyString_AS_STRING(key.object())).toVariant();
+                if (res.isValid()) {
+                    return %CONVERTTOPYTHON[QVariant](res);
+                } else {
+                    PyObject* errorType = PyInt_Check(_key) ? PyExc_IndexError : PyExc_KeyError;
+                    PyErr_SetString(errorType, "Key not found.");
+                    return 0;
+                }
+            </inject-code>
+        </add-function>
     </value-type>
     <object-type name="QScriptValueIterator"/>
 </typesystem>

tests/QtScript/CMakeLists.txt

@@ -1,3 +1,4 @@
 PYSIDE_TEST(base_test.py)
 PYSIDE_TEST(engine_test.py)
 PYSIDE_TEST(property_test.py)
+PYSIDE_TEST(qscriptvalue_test.py)

tests/QtScript/qscriptvalue_test.py

@@ -0,0 +1,20 @@
+import unittest
+from PySide.QtCore import *
+from PySide.QtScript import *
+
+class TestQScriptValue (unittest.TestCase):
+
+    def testOperator(self):
+        app = QCoreApplication([])
+
+        engine = QScriptEngine()
+        value = engine.evaluate('x = {"a": 1, "b":2}')
+        self.assertEqual(value['a'], 1)
+        self.assertRaises(KeyError, value.__getitem__, 'c')
+        value = engine.evaluate('x = ["x", "y", "z"]')
+        self.assertEqual(value[2], 'z')
+        self.assertRaises(IndexError, value.__getitem__, 23)
+
+
+if __name__ == '__main__':
+    unittest.main()