Remove findDOMNode as per warning

src/app/components/AvailableModulesMenu.jsx

@@ -1,7 +1,6 @@
 import React from 'react';
 import PropTypes from 'prop-types';
 import * as ModuleUtils from '../shipyard/ModuleUtils';
-import { findDOMNode } from 'react-dom';
 import TranslatedComponent from './TranslatedComponent';
 import { stopCtxPropagation } from '../utils/UtilityFunctions';
 import cn from 'classnames';
@@ -374,7 +373,7 @@ export default class AvailableModulesMenu extends TranslatedComponent {
    */
   componentDidMount() {
     if (this.groupElem) {  // Scroll to currently selected group
-      findDOMNode(this).scrollTop = this.groupElem.offsetTop;
+      this.node.scrollTop = this.groupElem.offsetTop;
     }
   }
 
@@ -393,7 +392,7 @@ export default class AvailableModulesMenu extends TranslatedComponent {
    */
   render() {
     return (
-      <div
+      <div ref={node => this.node = node}
           className={cn('select', this.props.className)}
           onScroll={this._hideDiff}
           onClick={(e) => e.stopPropagation() }

src/app/components/ModalExport.jsx

@@ -1,6 +1,5 @@
 import React from 'react';
 import PropTypes from 'prop-types';
-import { findDOMNode } from 'react-dom';
 import TranslatedComponent from './TranslatedComponent';
 
 /**
@@ -46,10 +45,9 @@ export default class ModalExport extends TranslatedComponent {
    * Focus on textarea and select all
    */
   componentDidMount() {
-    let e = findDOMNode(this.refs.exportField);
+    if (this.exportField) {
-    if (e) {
+      this.exportField.focus();
-      e.focus();
+      this.exportField.select();
-      e.select();
     }
   }
 
@@ -69,7 +67,7 @@ export default class ModalExport extends TranslatedComponent {
       <h2>{translate(this.props.title || 'Export')}</h2>
       {description}
       <div>
-        <textarea className='cb json' ref='exportField' readOnly value={this.state.exportJson} />
+        <textarea className='cb json' ref={node => this.exportField = node} readOnly value={this.state.exportJson} />
       </div>
       <button className='r dismiss cap' onClick={this.context.hideModal}>{translate('close')}</button>
     </div>;

src/app/components/ModalHelp.jsx

@@ -1,7 +1,6 @@
 /* eslint react/no-danger: 0 */
 import PropTypes from 'prop-types';
 import React from 'react';
-import { findDOMNode } from 'react-dom';
 import TranslatedComponent from './TranslatedComponent';
 
 /**
@@ -21,17 +20,6 @@ export default class ModalHelp extends TranslatedComponent {
     super(props);
   }
 
-  /**
-   * Focus on textarea and select all
-   */
-  componentDidMount() {
-    const e = findDOMNode(this.refs.exportField);
-    if (e) {
-      e.focus();
-      e.select();
-    }
-  }
-
   /**
    * Render the modal
    * @return {React.Component} Modal Content

src/app/components/PowerManagement.jsx

@@ -1,6 +1,5 @@
 import React from 'react';
 import PropTypes from 'prop-types';
-import { findDOMNode } from 'react-dom';
 import cn from 'classnames';
 import TranslatedComponent from './TranslatedComponent';
 import PowerBands from './PowerBands';
@@ -149,7 +148,7 @@ export default class PowerManagement extends TranslatedComponent {
    * Update power bands width from DOM
    */
   _updateWidth() {
-    this.setState({ width: findDOMNode(this).offsetWidth });
+    this.setState({ width: this.node.offsetWidth });
   }
 
   /**
@@ -197,7 +196,7 @@ export default class PowerManagement extends TranslatedComponent {
     let sortOrder = this._sortOrder;
 
     return (
-      <div className='group half' id='componentPriority'>
+      <div ref={node => this.node = node} className='group half' id='componentPriority'>
         <table style={{ width: '100%' }}>
           <thead>
             <tr className='main'>

src/app/pages/ComparisonPage.jsx

@@ -1,5 +1,4 @@
 import React from 'react';
-import { findDOMNode } from 'react-dom';
 import Page from './Page';
 import Router from '../Router';
 import cn from 'classnames';
@@ -385,7 +384,7 @@ export default class ComparisonPage extends Page {
    */
   _updateDimensions() {
     this.setState({
-      chartWidth: findDOMNode(this.refs.chartRef).offsetWidth
+      chartWidth: this.chartRef.offsetWidth
     });
   }
 
@@ -500,9 +499,9 @@ export default class ComparisonPage extends Page {
         <ComparisonTable builds={builds} facets={facets} onSort={this._sortShips} predicate={predicate} desc={desc} />
 
         {!builds.length ?
-          <div className='chart' ref={'chartRef'}>{translate('PHRASE_NO_BUILDS')}</div> :
+          <div className='chart' ref={node => this.chartRef = node}>{translate('PHRASE_NO_BUILDS')}</div> :
           facets.filter((f) => f.active).map((f, i) =>
-            <div key={f.title} className='chart' ref={ i == 0 ? 'chartRef' : null}>
+            <div key={f.title} className='chart' ref={ i == 0 ? node => this.chartRef = node : null}>
               <h3 className='ptr' onClick={this._sortShips.bind(this, f.props[0])}>{translate(f.title)}</h3>
               <BarChart
                 width={chartWidth}

src/app/pages/OutfittingPage.jsx

@@ -1,6 +1,5 @@
 import React from 'react';
 // import Perf from 'react-addons-perf';
-import { findDOMNode } from 'react-dom';
 import { Ships } from 'coriolis-data/dist';
 import cn from 'classnames';
 import Page from './Page';