feat: enable gas calculation

js/onlineide/rightmenu.js

@@ -218,11 +218,17 @@ function executeContract() {
     request.contractID = contract.id;
     request.operation = contract.exportedFunctions[selectedFunction.value].functionName;
     const arg = executeContractArgInput.value;
-    const gasLimit = $('#gasLimit').val()
-    request.gasLimit = gasLimit ? gasLimit : '1000'
+    const gasLimit = $('#gasLimit').val()/1;
     request.pubkey = sm2Key.publicKey;
+    var toSign = request.contractID + "|"
+                    + request.operation + "|" + arg ;
+    if (gasLimit>0){
+      request.gasLimit = gasLimit;
+      toSign+= "|" + gasLimit;
+    }
+    toSign+= "|" + sm2Key.publicKey;
     request.signature = sm2.doSignature(
-        `${request.contractID}|${request.operation}|${arg}|${sm2Key.publicKey}`,
+        toSign,
         sm2Key.privateKey,
         {hash: true, der: true});
     request.arg = arg;