Fix TrackerComponent and include in repo to fix Accounts.LoginFormInner

package.json

@@ -81,7 +81,6 @@
     "speakingurl": "^9.0.0",
     "stripe": "^4.23.1",
     "styled-components": "^2.1.1",
-    "tracker-component": "^1.3.14",
     "underscore": "^1.8.3",
     "url": "^0.11.0"
   },

packages/vulcan-accounts/imports/ui/components/LoginFormInner.jsx

@@ -1,12 +1,12 @@
 /* eslint-disable meteor/no-session */
 import React from 'react';
 import PropTypes from 'prop-types';
-import Tracker from 'tracker-component';
 import { Accounts } from 'meteor/accounts-base';
 import { KEY_PREFIX } from '../../login_session.js';
 import { Components, registerComponent, withCurrentUser, Callbacks, runCallbacks } from 'meteor/vulcan:core';
 import { intlShape } from 'meteor/vulcan:i18n';
 import { withApollo } from 'react-apollo';
+import TrackerComponent from './TrackerComponent.jsx';
 
 import {
   STATES,
@@ -20,7 +20,7 @@ import {
   capitalize
 } from '../../helpers.js';
 
-export class AccountsLoginFormInner extends Tracker.Component {
+export class AccountsLoginFormInner extends TrackerComponent {
   constructor(props) {
     super(props);
 

packages/vulcan-accounts/imports/ui/components/TrackerComponent.jsx

@@ -0,0 +1,64 @@
+/*****************************************************************/
+/* See https://github.com/studiointeract/tracker-component
+/* This is essentially the same component made by studiointeract
+/* but modified to work correctly with modern React.
+/* Only change as of this writing is to setState()
+/****************************************************************/
+import React from 'react';
+
+class TrackerComponent extends React.Component {
+  constructor(props) {
+    super(props);
+    this.__subs = {}, this.__comps = []; this.__live = false;
+    this.__subscribe = props && props.subscribe || Meteor.subscribe;
+  }
+
+  subscribe(name, ...options) {
+    return this.__subs[JSON.stringify(arguments)] =
+      this.__subscribe.apply(this, [name, ...options]);
+  }
+
+  autorun(fn) { return this.__comps.push(Tracker.autorun(c => {
+    this.__live = true; fn(c); this.__live = false;
+  }))}
+
+  componentDidUpdate() { !this.__live && this.__comps.forEach(c => {
+    c.invalidated = c.stopped = false; !c.invalidate();
+  })}
+
+  subscriptionsReady() {
+    return !Object.keys(this.__subs).some(id => !this.__subs[id].ready());
+  }
+
+  setState(state){
+    // Originally, this function was like so:
+    //
+    //     if (!this._reactInternalInstance)
+    //       return this.state = Object.assign({}, this.state, state);
+    //     else
+    //       return super.setState.apply(this, arguments);
+    //
+    // But this didn't work well with new React releases.
+    // _reactInternalInstance was always undefined and super.setState was never getting called.
+    // This resulted in states never persistently updating and setState callbacks never called.
+    // There may be some mysterious reason this was originally written this way hence I'm keeping
+    // it here for reference for when we find out it's broken.
+
+    const newState = Object.assign({}, this.state, state);
+    this.state = newState;
+    return super.setState(newState);
+  }
+
+  componentWillUnmount() {
+    Object.keys(this.__subs).forEach(sub => this.__subs[sub].stop());
+    this.__comps.forEach(comp => comp.stop());
+  }
+
+  render() {
+    const { children } = this.props;
+    const comp = (children instanceof Array ? children : [children]).map(c => React.cloneElement(c, this.state));
+    return comp.length == 1 ? comp[0] : <div>{comp}</div>;
+  }
+}
+
+export default TrackerComponent;