Device manager - current session expandable details (PSG-644) (#9185)

* split current device section into component

* add dropdown button for currentsession device details

* test currentdevicesection

* remove unnecc beforeEach

* update type imports

* i18n and lint

src/components/views/settings/devices/CurrentDeviceSection.tsx

@@ -0,0 +1,74 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React, { useState } from 'react';
+
+import { _t } from '../../../../languageHandler';
+import Spinner from '../../elements/Spinner';
+import SettingsSubsection from '../shared/SettingsSubsection';
+import DeviceDetails from './DeviceDetails';
+import DeviceExpandDetailsButton from './DeviceExpandDetailsButton';
+import DeviceSecurityCard from './DeviceSecurityCard';
+import DeviceTile from './DeviceTile';
+import {
+    DeviceSecurityVariation,
+    DeviceWithVerification,
+} from './types';
+
+interface Props {
+    device?: DeviceWithVerification;
+    isLoading: boolean;
+}
+
+const CurrentDeviceSection: React.FC<Props> = ({
+    device, isLoading,
+}) => {
+    const [isExpanded, setIsExpanded] = useState(false);
+    const securityCardProps = device?.isVerified ? {
+        variation: DeviceSecurityVariation.Verified,
+        heading: _t('Verified session'),
+        description: _t('This session is ready for secure messaging.'),
+    } : {
+        variation: DeviceSecurityVariation.Unverified,
+        heading: _t('Unverified session'),
+        description: _t('Verify or sign out from this session for best security and reliability.'),
+    };
+    return <SettingsSubsection
+        heading={_t('Current session')}
+        data-testid='current-session-section'
+    >
+        { isLoading && <Spinner /> }
+        { !!device && <>
+            <DeviceTile
+                device={device}
+            >
+                <DeviceExpandDetailsButton
+                    data-testid='current-session-toggle-details'
+                    isExpanded={isExpanded}
+                    onClick={() => setIsExpanded(!isExpanded)}
+                />
+            </DeviceTile>
+            { isExpanded && <DeviceDetails device={device} /> }
+            <br />
+            <DeviceSecurityCard
+                {...securityCardProps}
+            />
+        </>
+        }
+    </SettingsSubsection>;
+};
+
+export default CurrentDeviceSection;