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2018-07-11 7b02207537d35bfa1714bf8beafc921f717d100a

 screendisplay/Pods/MagicWindowSDK/MagicWindowSDK/MagicWindowSDK/MagicWindow.bundle/Contents/Resources/MWWebViewJavascriptBridge.js.txt

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;(function() {
   if (window.WebViewJavascriptBridge) { return }
   var messagingIframe
   var sendMessageQueue = []
   var receiveMessageQueue = []
   var messageHandlers = {}
	
   var MESSAGE_SEPARATOR = '__WVJB_MESSAGE_SEPERATOR__'
   var CUSTOM_PROTOCOL_SCHEME = 'wvjbscheme'
   var QUEUE_HAS_MESSAGE = '__WVJB_QUEUE_MESSAGE__'
	
   var responseCallbacks = {}
   var uniqueId = 1
	
   function _createQueueReadyIframe(doc) {
      messagingIframe = doc.createElement('iframe')
      messagingIframe.style.display = 'none'
      doc.documentElement.appendChild(messagingIframe)
   }

   function init(messageHandler) {
      if (WebViewJavascriptBridge._messageHandler) { throw new Error('WebViewJavascriptBridge.init called twice') }
      WebViewJavascriptBridge._messageHandler = messageHandler
      var receivedMessages = receiveMessageQueue
      receiveMessageQueue = null
      for (var i=0; i<receivedMessages.length; i++) {
         _dispatchMessageFromObjC(receivedMessages[i])
      }
   }

   function send(data, responseCallback) {
      _doSend({ data:data }, responseCallback)
   }
	
   function registerHandler(handlerName, handler) {
      messageHandlers[handlerName] = handler
   }
	
   function callHandler(handlerName, data, responseCallback) {
      _doSend({ data:data, handlerName:handlerName }, responseCallback)
   }
	
   function _doSend(message, responseCallback) {
      if (responseCallback) {
         var callbackId = 'js_cb_'+(uniqueId++)
         responseCallbacks[callbackId] = responseCallback
         message['callbackId'] = callbackId
      }
      sendMessageQueue.push(JSON.stringify(message))
      messagingIframe.src = CUSTOM_PROTOCOL_SCHEME + '://' + QUEUE_HAS_MESSAGE
   }

   function _fetchQueue() {
      var messageQueueString = sendMessageQueue.join(MESSAGE_SEPARATOR)
      sendMessageQueue = []
      return messageQueueString
   }

   function _dispatchMessageFromObjC(messageJSON) {
      setTimeout(function _timeoutDispatchMessageFromObjC() {
         var message = JSON.parse(messageJSON)
         var messageHandler
         if (message.responseId) {
            var responseCallback = responseCallbacks[message.responseId]

            responseCallback(message.error, message.responseData)
            delete responseCallbacks[message.responseId]
         } else {
            var response                            
            if (message.callbackId) {
               var callbackResponseId = message.callbackId
               response = {
                  respondWith: function(responseData) {
                     _doSend({ responseId:callbackResponseId, responseData:responseData })
                  },
                  respondWithError: function(error) {
                     _doSend({ responseId:callbackResponseId, error:error })
                  }
               }
            }
				
            var handler = WebViewJavascriptBridge._messageHandler

            if (message.handlerName) {
               handler = messageHandlers[message.handlerName]
            }
				
            try {
               handler(message.data, response)
            } catch(exception) {
               console.log("WebViewJavascriptBridge: WARNING: javascript handler threw.", message, exception)
            }
         }
      })
   }
	
   function _handleMessageFromObjC(messageJSON) {

      if (receiveMessageQueue) {
         receiveMessageQueue.push(messageJSON)
      } else {
         _dispatchMessageFromObjC(messageJSON)
      }
   }

   window.WebViewJavascriptBridge = {
      init: init,
      send: send,
      registerHandler: registerHandler,
      callHandler: callHandler,
      _fetchQueue: _fetchQueue,
      _handleMessageFromObjC: _handleMessageFromObjC
   }

   var doc = document
   _createQueueReadyIframe(doc)
   var readyEvent = doc.createEvent('Events')
   readyEvent.initEvent('WebViewJavascriptBridgeReady')
   readyEvent.bridge = WebViewJavascriptBridge
   doc.dispatchEvent(readyEvent)
})();