minor fixes

mix/CodeModel.cpp

@@ -62,6 +62,8 @@ CompilationResult::CompilationResult(const dev::solidity::CompilerStack& _compil
 		m_assemblyCode = QString::fromStdString(dev::eth::disassemble(m_bytes));
 		dev::solidity::InterfaceHandler interfaceHandler;
 		m_contractInterface = QString::fromStdString(*interfaceHandler.getABIInterface(contractDefinition));
+		if (m_contractInterface.isEmpty())
+			m_contractInterface = "[]";
 	}
 	else
 		m_contract.reset(new QContractDefinition());

mix/qml/StatusPane.qml

@@ -114,7 +114,7 @@ Rectangle {
 					id: debugRunActionIcon
 					onTriggered: {
 						mainContent.toggleRightView();
-						if (mainContent.rightViewVisible())
+						if (mainContent.rightViewVisible)
 							clientModel.debugDeployment();
 					}
 					enabled: false

mix/qml/WebPreview.qml

@@ -27,10 +27,7 @@ Item {
 	}
 
 	function updateContract() {
-		var contractInterface = codeModel.code.contractInterface;
+		webView.runJavaScript("updateContract(\"" + clientModel.contractAddress + "\", " + codeModel.code.contractInterface + ")");
-		if (contractInterface === "")
-			contractInterface = "[]"
-		webView.runJavaScript("updateContract(\"" + clientModel.contractAddress + "\", " + contractInterface + ")");
 	}
 
 	function reloadOnSave() {