1 files changed, 76 insertions, 0 deletions
diff --git a/server/sonar-docs/src/components/VersionSelect.tsx b/server/sonar-docs/src/components/VersionSelect.tsx
new file mode 100644
index 00000000000..a7ea4465824
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+++ b/server/sonar-docs/src/components/VersionSelect.tsx
@@ -0,0 +1,76 @@
+/*
+ * SonarQube
+ * Copyright (C) 2009-2019 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+import * as React from 'react';
+import ChevronDownIcon from './icons/ChevronDownIcon';
+import ChevronUpIcon from './icons/ChevronUpIcon';
+import OutsideClickHandler from './OutsideClickHandler';
+import { DocVersion } from '../@types/types';
+
+interface Props {
+  isOnCurrentVersion: boolean;
+  selectedVersionValue: string;
+  versions: DocVersion[];
+}
+
+interface State {
+  open: boolean;
+}
+
+export default class VersionSelect extends React.PureComponent<Props, State> {
+  state = { open: false };
+
+  handleClick = () => {
+    this.setState(state => ({ open: !state.open }));
+  };
+
+  handleClickOutside = () => {
+    this.setState({ open: false });
+  };
+
+  render() {
+    const { isOnCurrentVersion, selectedVersionValue, versions } = this.props;
+    const hasVersions = versions.length > 1;
+
+    return (
+      <div className="version-select">
+        <button onClick={this.handleClick} type="button">
+          Docs <span className={isOnCurrentVersion ? 'current' : ''}>{selectedVersionValue}</span>
+          {hasVersions && !this.state.open && <ChevronDownIcon size={10} />}
+          {hasVersions && this.state.open && <ChevronUpIcon size={10} />}
+        </button>
+        {this.state.open && hasVersions && (
+          <OutsideClickHandler onClickOutside={this.handleClickOutside}>
+            <ul>
+              {versions.map(version => {
+                return (
+                  <li key={version.value}>
+                    <a href={version.current ? '/' : '/' + version.value}>
+                      <span className={version.current ? 'current' : ''}>{version.value}</span>
+                    </a>
+                  </li>
+                );
+              })}
+            </ul>
+          </OutsideClickHandler>
+        )}
+      </div>
+    );
+  }
+}