Merge pull request #1795 from ProjectMirador/kill-dead-component-

Remove unused Display component.

__tests__/src/components/Display.test.js

-import React from 'react';
-import { shallow } from 'enzyme';
-import Display from '../../../src/components/Display';
-import ManifestMetadata from '../../../src/components/ManifestMetadata';
-import fixture from '../../fixtures/version-2/002.json';
-
-describe('Display', () => {
-  it('renders without an error', () => {
-    const wrapper = shallow(<Display manifest={{}} />);
-    expect(wrapper.contains(<div className="Display"><div id="exampleManifest" className=""><ManifestMetadata manifest={{}} /></div></div>)).toBe(true);
-  });
-  it('sets class based on manifest state', () => {
-    let wrapper = shallow(<Display manifest={{ isFetching: true }} />);
-    expect(wrapper.find('.mirador-fetching').length).toBe(1);
-
-    wrapper = shallow(<Display manifest={{ error: true }} />);
-    expect(wrapper.find('.mirador-error').length).toBe(1);
-  });
-  it('displays content', () => {
-    let wrapper = shallow(<Display manifest={{ isFetching: true }} />);
-    expect(wrapper.text()).toBe('☕');
-
-    wrapper = shallow(<Display manifest={{ error: { message: 'bad things' } }} />);
-    expect(wrapper.text()).toBe('bad things');
-
-    wrapper = shallow(<Display manifest={{ json: fixture }} />);
-    expect(wrapper.find(ManifestMetadata).length).toBe(1);
-  });
-});

src/components/Display.js

-import React from 'react';
-import PropTypes from 'prop-types';
-import ManifestMetadata from './ManifestMetadata';
-import ns from '../config/css-ns';
-
-/**
- * Determines how to best display the content (or lack thereof) the manifest
- * @private
- */
-const displayContent = (manifest) => {
-  if (manifest) {
-    if (manifest.isFetching) {
-      return '☕';
-    }
-    if (manifest.error) {
-      return manifest.error.message;
-    }
-    return <ManifestMetadata manifest={manifest} />;
-  }
-  return 'Nothing Selected Yet';
-};
-
-/**
- * Determines which classes should be used for display, based on the state of
- * the manifest
- * @memberof Display
- * @private
- */
-const stateClass = (manifest) => {
-  if (manifest) {
-    if (manifest.isFetching) {
-      return 'fetching';
-    }
-    if (manifest.error) {
-      return 'error';
-    }
-    return '';
-  }
-  return 'empty';
-};
-
-
-/**
- * Displays a manifest
- * @param {object} props
- * @param {object} [props.manifest = undefined]
- */
-const Display = ({ manifest }) => (
-  <div className="Display">
-    <div id="exampleManifest" className={ns(stateClass(manifest))}>
-      {displayContent(manifest)}
-    </div>
-  </div>
-);
-
-Display.propTypes = {
-  manifest: PropTypes.object, // eslint-disable-line react/forbid-prop-types
-};
-
-Display.defaultProps = {
-  manifest: undefined,
-};
-
-export default Display;