Update About dialog according to the upstream changes

Signed-off-by: Artem Zatsarynnyi <azatsary@redhat.com>

extensions/eclipse-che-theia-about/src/browser/about-che-theia-dialog.tsx

@@ -0,0 +1,123 @@
+/*********************************************************************
+ * Copyright (c) 2020 Red Hat, Inc.
+ *
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ **********************************************************************/
+
+import * as React from 'react';
+import { AboutDialog, AboutDialogProps, ABOUT_CONTENT_CLASS } from '@theia/core/lib/browser/about-dialog';
+import { injectable, inject, postConstruct } from 'inversify';
+import { CheProductService, Product } from '@eclipse-che/theia-plugin-ext/lib/common/che-protocol';
+import { ThemeService, Theme } from '@theia/core/lib/browser/theming';
+import { Logo } from '@eclipse-che/plugin';
+
+import '../../src/browser/style/che-theia-about.css';
+
+const jsonDetails = require('../../conf/about-details.json');
+
+@injectable()
+export class AboutCheTheiaDialog extends AboutDialog {
+
+    protected productInfo: Product;
+
+    @inject(CheProductService)
+    protected productService: CheProductService;
+
+    @inject(ThemeService)
+    protected readonly themeService: ThemeService;
+
+    constructor(
+        @inject(AboutDialogProps) protected readonly props: AboutDialogProps
+    ) {
+        super(props);
+    }
+
+    @postConstruct()
+    protected async init(): Promise<void> {
+        this.productInfo = await this.productService.getProduct();
+        this.extensionsInfos = await this.appServer.getExtensionsInfos();
+        this.update();
+        this.titleNode.textContent = this.productInfo.name;
+    }
+
+    protected render(): React.ReactNode {
+        return <div className={ABOUT_CONTENT_CLASS}>
+            {this.renderHeader()}
+            {this.renderExtensions()}
+            {this.renderTimestamp()}
+        </div>;
+    }
+
+    protected renderHeader(): React.ReactNode {
+        return <div className='che-theia-about-product-header'>
+            {this.getLogo()}
+            {this.getVersion()}
+        </div>;
+    }
+
+    protected getLogo(): React.ReactNode {
+        const productInfo = this.productInfo;
+        let src = '';
+
+        if (typeof productInfo.logo === 'object') {
+            const productLogo: Logo = productInfo.logo as Logo;
+            src = this.isDark(this.themeService.getCurrentTheme()) ? productLogo.dark : productLogo.light;
+
+            this.themeService.onThemeChange(e => {
+                src = this.isDark(e.newTheme) ? productLogo.dark : productLogo.light;
+            });
+        } else {
+            src = productInfo.logo;
+        }
+
+        return <div className='che-theia-about-product-logo'>
+            <img src={src}></img>
+        </div>;
+    }
+
+    private isDark(theme: Theme): boolean {
+        return !theme.id.includes('light');
+    }
+
+    protected getVersion(): React.ReactNode {
+        const style: React.CSSProperties = {
+            margin: '4px',
+            textAlign: 'center',
+            fontFamily: 'Roboto, sans-serif',
+            fontWeight: 400
+        };
+        const linkStyle: React.CSSProperties = {
+            color: 'var(--theia-ui-dialog-font-color)'
+        };
+        return <h4 style={style}>
+            Che-Theia@
+            <a
+                href={`https://github.com/eclipse/che-theia/commit/${jsonDetails.cheTheiaSha1}`}
+                target='_blank'
+                style={linkStyle}>
+                {jsonDetails.cheTheiaSha1}
+            </a>
+            {' '}using Theia@
+            <a
+                href={`https://github.com/eclipse-theia/theia/commit/${jsonDetails.theiaSha1}`}
+                target='_blank'
+                style={linkStyle}>
+                {jsonDetails.theiaSha1}
+            </a>
+        </h4>;
+    }
+
+    protected renderTimestamp(): React.ReactNode {
+        const style: React.CSSProperties = {
+            marginBlockStart: '4px',
+            textAlign: 'right',
+            fontWeight: 200,
+            fontSize: '10px'
+        };
+        return <h4 style={style}>Built {jsonDetails.date}</h4>;
+    }
+}

extensions/eclipse-che-theia-about/src/browser/style/che-theia-about.css

@@ -15,7 +15,7 @@
  ********************************************************************************/
 
 .che-theia-about-product-header {
-    display: flex;
+    display: block;
     white-space: nowrap;
     margin-block-end: 15px;
     margin-block-start: 5px;