app.js
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/**
* Created by DEV005 on 2017/4/13.
*/
function XnAppNative(options) {
"use strict";
if (window.WebViewJavascriptBridge) { return }
var messagingIframe;
var sendMessageQueue = [];
var receiveMessageQueue = [];
var messageHandlers = {};
var CUSTOM_PROTOCOL_SCHEME = 'wvjbscheme';
var QUEUE_HAS_MESSAGE = '__WVJB_QUEUE_MESSAGE__';
var responseCallbacks = {};
var uniqueId = 1;
var flag = true;
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({ handlerName:handlerName, data:data }, responseCallback);
}
function _doSend(message, responseCallback) {
if (responseCallback) {
var callbackId = 'cb_'+(uniqueId++)+'_'+new Date().getTime();
responseCallbacks[callbackId] = responseCallback;
message['callbackId'] = callbackId;
}
sendMessageQueue.push(message);
messagingIframe.src = CUSTOM_PROTOCOL_SCHEME + '://' + QUEUE_HAS_MESSAGE;
}
function _fetchQueue() {
var messageQueueString = JSON.stringify(sendMessageQueue);
sendMessageQueue = [];
return messageQueueString;
}
function _dispatchMessageFromObjC(messageJSON) {
setTimeout(function _timeoutDispatchMessageFromObjC() {
var message = JSON.parse(messageJSON);
var messageHandler;
if (message.responseId) {
var responseCallback = responseCallbacks[message.responseId];
if (!responseCallback) { return; }
responseCallback(message.responseData);
delete responseCallbacks[message.responseId];
} else {
var responseCallback;
if (message.callbackId) {
var callbackResponseId = message.callbackId;
responseCallback = function(responseData) {
_doSend({ responseId:callbackResponseId, responseData:responseData });
}
}
var handler = WebViewJavascriptBridge._messageHandler;
if (message.handlerName) {
handler = messageHandlers[message.handlerName]
}
try {
handler(message.data, responseCallback)
} catch(exception) {
if (typeof console != 'undefined') {
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);
var callAppMethod = function(methodName,callback,data){
if (window.WebViewJavascriptBridge) {
connectWebViewJavascriptBridge(WebViewJavascriptBridge,methodName,callback)
} else {
document.addEventListener('WebViewJavascriptBridgeReady', function() {
connectWebViewJavascriptBridge(WebViewJavascriptBridge,methodName,callback)
}, false)
}
function connectWebViewJavascriptBridge(bridge,methodName,callback) {
if(flag){
bridge.init(function(methodName, callback) {});
flag = false;
}
bridge.callHandler(methodName,data,function(response) {
callback(response);
})
}
};
"use strict";
var options={
}
var appNative=new Object;
appNative.version="1.0.0";
appNative.init=function () {
return _name;
};
return appNative;
}