exampleburnerweb3.js

let messageBuffer = {}

module.exports = (web3)=>{
  let burnerWeb3 = web3

  var iframe = document.createElement('iframe')
  iframe.style.opacity = 0.9
  iframe.style.position = "absolute"
  iframe.style.width = "300px"
  iframe.style.height = "100%"
  iframe.style.right = 0
  iframe.style.top = 0
  iframe.src = "http://xdai.io"
  document.body.appendChild(iframe)

  bindEvent(window, 'message', function (e) {
     console.log("))))))))))))))))) MESSAGE RETURN",e)
     try{
       let message = e.data
       let callback = messageBuffer[message.id]
       if(callback&&typeof callback == "function"){
         callback(...message.result)
       }
     }catch(e){console.log(e)}
  });

  iframe.contentWindow.postMessage("hello world", '*');


  burnerWeb3.eth.oldGetAccounts = burnerWeb3.eth.getAccounts
  /*burnerWeb3.eth.getAccounts = ()=>{
    return new Promise(function(resolve, reject) {
      console.log("############ GETTING ACCOUNTS")
      let randomId = burnerWeb3.utils.randomHex(16)
      messageBuffer[randomId] = resolve
      iframe.contentWindow.postMessage(JSON.stringify({id:randomId,function:"eth.getAccounts",args:[]}), '*');
    });
  }*/
  burnerWeb3.eth.getAccounts = (callback)=>{
    console.log("############ GETTING OLD ACCOUNTS")
    let randomId = burnerWeb3.utils.randomHex(16)
    messageBuffer[randomId] = callback
    iframe.contentWindow.postMessage({id:randomId,function:"eth.getAccounts",args:[]}, '*');
  }

  burnerWeb3.version = {}
  console.log("burnerWeb3 version",burnerWeb3.version)
  burnerWeb3.version.getNetwork = (callback)=>{
    console.log("############ GETTING OLD NETWORK")
    let randomId = burnerWeb3.utils.randomHex(16)
    messageBuffer[randomId] = callback
    iframe.contentWindow.postMessage({id:randomId,function:"version.getNetwork",args:[]}, '*');
  }

  burnerWeb3.eth.sendTransaction = (transactionObject,callback)=>{
    console.log("############ eth.sendTransaction")
    let randomId = burnerWeb3.utils.randomHex(16)
    messageBuffer[randomId] = callback
    iframe.contentWindow.postMessage({id:randomId,function:"eth.sendTransaction",args:[transactionObject]}, '*');
  }

  //
  //burnerWeb3.eth.oldContract = web3.eth.Contract
  //burnerWeb3.eth.Contract = (jsonInterface,address)=>{
  //  let newContract = new burnerWeb3.eth.oldContract(jsonInterface,address)
  //  console.log("new contract ",newContract)
  //  return newContract;
  //}
  //burnerWeb3.eth.Contract.prototype._executeMethod = function _executeMethod(){
  //}
  window.web3 = burnerWeb3
  return burnerWeb3
}


function bindEvent(element, eventName, eventHandler) {
    if (element.addEventListener) {
        element.addEventListener(eventName, eventHandler, false);
    } else if (element.attachEvent) {
        element.attachEvent('on' + eventName, eventHandler);
    }
}