diff --git a/src/app/ui/sendTxCallbacks.js b/src/app/ui/sendTxCallbacks.js
new file mode 100644
index 0000000000..47fe861ec5
--- /dev/null
+++ b/src/app/ui/sendTxCallbacks.js
@@ -0,0 +1,102 @@
+const yo = require('yo-yo')
+const confirmDialog = require('./confirmDialog')
+const modalCustom = require('./modal-dialog-custom')
+const modalDialog = require('./modaldialog')
+const typeConversion = remixLib.execution.typeConversion
+const Web3 = require('web3')
+
+UniversalDAppUI.prototype.confirmationCb = function (executionContext, udapp, network, tx, gasEstimation, continueTxExecution, cancelCb) {
+  let self = this
+  if (network.name !== 'Main') {
+    return continueTxExecution(null)
+  }
+  var amount = Web3.utils.fromWei(typeConversion.toInt(tx.value), 'ether')
+  var content = confirmDialog(tx, amount, gasEstimation, self.udapp,
+    (gasPrice, cb) => {
+      let txFeeText, priceStatus
+      // TODO: this try catch feels like an anti pattern, can/should be
+      // removed, but for now keeping the original logic
+      try {
+        var fee = Web3.utils.toBN(tx.gas).mul(Web3.utils.toBN(Web3.utils.toWei(gasPrice.toString(10), 'gwei')))
+        txFeeText = ' ' + Web3.utils.fromWei(fee.toString(10), 'ether') + ' Ether'
+        priceStatus = true
+      } catch (e) {
+        txFeeText = ' Please fix this issue before sending any transaction. ' + e.message
+        priceStatus = false
+      }
+      cb(txFeeText, priceStatus)
+    },
+    (cb) => {
+      self.executionContext.web3().eth.getGasPrice((error, gasPrice) => {
+        const warnMessage = ' Please fix this issue before sending any transaction. '
+        if (error) {
+          return cb('Unable to retrieve the current network gas price.' + warnMessage + error)
+        }
+        try {
+          var gasPriceValue = Web3.utils.fromWei(gasPrice.toString(10), 'gwei')
+          cb(null, gasPriceValue)
+        } catch (e) {
+          cb(warnMessage + e.message, null, false)
+        }
+      })
+    }
+  )
+  modalDialog(
+    'Confirm transaction',
+    content,
+    { label: 'Confirm',
+      fn: () => {
+        self.udapp.config.setUnpersistedProperty(
+          'doNotShowTransactionConfirmationAgain',
+          content.querySelector('input#confirmsetting').checked
+        )
+        // TODO: check if this is check is still valid given the refactor
+        if (!content.gasPriceStatus) {
+          cancelCb('Given gas price is not correct')
+        } else {
+          var gasPrice = Web3.utils.toWei(content.querySelector('#gasprice').value, 'gwei')
+          continueTxExecution(gasPrice)
+        }
+      }
+    },
+    {
+      label: 'Cancel',
+      fn: () => {
+        return cancelCb('Transaction canceled by user.')
+      }
+    }
+  )
+}
+
+module.exports = confirmationCb
+
+const continueCb = (error, continueTxExecution, cancelCb) => {
+  if (error) {
+    const msg = typeof error !== 'string' ? error.message : error
+    modalDialog(
+      'Gas estimation failed',
+      yo`
+        <div>Gas estimation errored with the following message (see below).
+        The transaction execution will likely fail. Do you want to force sending? <br>${msg}</div>
+      `,
+      {
+        label: 'Send Transaction',
+        fn: () => continueTxExecution()
+      },
+      {
+        label: 'Cancel Transaction',
+        fn: () => cancelCb()
+      }
+    )
+  } else {
+    continueTxExecution()
+  }
+}
+
+module.exports = continueCb
+
+const promptCb = (okCb, cancelCb) => {
+  modalCustom.promptPassphrase('Passphrase requested', 'Personal mode is enabled. Please provide passphrase of account', '', okCb, cancelCb)
+}
+
+module.exports = promptCb
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