add mirador state getter

src/containers/App.js

@@ -2,23 +2,23 @@ import { compose } from 'redux';
 import { connect } from 'react-redux';
 import { withPlugins } from '../extend/withPlugins';
 import * as actions from '../state/actions';
-import { getTheme } from '../state/selectors';
+import { getTheme, getMiradorState } from '../state/selectors';
 import { App } from '../components/App';
 
-
 /**
  * mapStateToProps - to hook up connect
  * @memberof App
  * @private
  */
-const mapStateToProps = state => (
-  {
+function mapStateToProps(globalState) {
+  const state = getMiradorState(globalState);
+  return {
     isFullscreenEnabled: state.workspace.isFullscreenEnabled,
     language: state.config.language,
     theme: getTheme(state),
     translations: state.config.translations,
+  };
 }
-);
 
 /**
  * mapDispatchToProps - used to hook up connect to action creators

src/state/selectors/index.js

@@ -6,3 +6,4 @@ export * from './manifests';
 export * from './windows';
 export * from './workspace';
 export * from './searches';
+export * from './miradorState';

src/state/selectors/miradorState.js

+
+/** */
+let _getMiradorState = globalState => globalState; // eslint-disable-line no-underscore-dangle
+
+/** */
+export function setMiradorStateGetter(customGetter) {
+  _getMiradorState = customGetter;
+}
+
+/** */
+export function getMiradorState(globalState) {
+  return _getMiradorState(globalState);
+}