def setUp(self):
UsesQApplication.setUp(self)
self.engine = QScriptEngine()
self.debugger = QScriptEngineDebugger()
self.has_suspended = 0
self.has_resumed = 0
self.count = 3
def main(argv=None):
if argv is None:
argv = sys.argv
app = QApplication(argv)
engine = QScriptEngine()
if HAS_DEBUGGER:
debugger = QScriptEngineDebugger()
debugger.attachTo(engine)
debugWindow = debugger.standardWindow()
debugWindow.resize(1024, 640)
scriptFileName = './calculator.js'
scriptFile = QFile(scriptFileName)
scriptFile.open(QIODevice.ReadOnly)
engine.evaluate(unicode(scriptFile.readAll()), scriptFileName)
scriptFile.close()
loader = QUiLoader()
ui = loader.load(':/calculator.ui')
ctor = engine.evaluate('Calculator')
scriptUi = engine.newQObject(ui, QScriptEngine.ScriptOwnership)
calc = ctor.construct([scriptUi])
if HAS_DEBUGGER:
display = ui.findChild(QLineEdit, 'display')
display.connect(display, SIGNAL('returnPressed()'), debugWindow,
SLOT('show()'))
ui.show()
return app.exec_()
def testQScriptEngine(self):
engine = QScriptEngine()
obj = engine.evaluate(
"({ unitName: 'Celsius', toKelvin: function(x) { return x + 273; } })"
)
toKelvin = obj.property("toKelvin")
result = toKelvin.call(obj, [100])
self.assertEqual(result.toNumber(), 373)
def testScriptQProperty(self):
qapp = QCoreApplication([])
myEngine = QScriptEngine()
obj = MyObject()
scriptObj = myEngine.newQObject(obj)
myEngine.globalObject().setProperty("obj", scriptObj)
myEngine.evaluate("obj.x = 42")
self.assertEqual(scriptObj.property("x").toInt32(), 42)
self.assertEqual(obj.property("x"), 42)
def __init__(self):
self.app = QApplication.instance()
if self.app is None:
self.app = QCoreApplication([])
self.engine = QScriptEngine()
self.globalObject = self.engine.globalObject()
# There were some problems evalating javascript inside a function callback. QtSide's bindings for QScriptEngine
# didn't seem prepared to handle it (it breaks in weird hard-to-debug ways)
# It is however not a problem if you use a wrapped QObject for the callback instead of using engine.newFunction().
# The workaround here is to pass a wrapped QObject, and then evaluate javascript to create a function that calls
# a method of the wrapped QObject.
# Also note: Wrapped QObjects passed to QtSide are not refcounted in Python! To work around this, a reference to
# "RequireObj" is stored in the JSEngine instance
self.requireObj = JsEngineRequireClass(self.engine)
self.addObject('RequireObj', self.requireObj)
self.evaluate("""
function require(arg) {
return RequireObj.require(arg);
}
""")
def engine(self):
if not self._engine:
self._engine = QScriptEngine()
return self._engine
