init commit

src/_core.js

@@ -0,0 +1,50 @@
+import './polyfill';
+import _global from './polyfill/_global';
+import { setConfig, getVersion } from './services/config';
+import { onScanListener, offScanListener, setStatusListener, getStatus, startScan, stopScan, clear } from './services/provider/scan';
+import { initWxJssdk } from './services/wx';
+import { printDebug } from './utils/logger';
+
+let _readyPromise = null;
+let _calledReady = false;
+
+(function () {
+  _global.__IScanReady__ && _global.__IScanReady__();
+})();
+
+export function isReadyCalled() {
+  return _calledReady;
+}
+
+function config(config) {
+  if (config) {
+    setConfig(config);
+  }
+  if (_readyPromise) {
+    return _readyPromise;
+  }
+  _readyPromise = Promise.resolve().then(() => {
+    printDebug('-------------------------------');
+    printDebug('sdk_version:', getVersion());
+    printDebug('-------------------------------');
+    initWxJssdk();
+    return Promise.resolve().then(() => {
+      _calledReady = true;
+    }).catch(err => {
+      _readyPromise = null;
+      throw err;
+    });
+  })
+  return _readyPromise;
+}
+
+export default Object.assign({}, {
+  config,
+  onScanListener,
+  offScanListener,
+  setStatusListener,
+  getStatus,
+  startScan,
+  stopScan,
+  clear,
+});