Add simple live share warning

res/css/_components.scss

@@ -4,6 +4,7 @@
 @import "./_font-sizes.scss";
 @import "./_font-weights.scss";
 @import "./_spacing.scss";
+@import "./components/views/beacon/_LeftPanelLiveShareWarning.scss";
 @import "./components/views/location/_LocationShareMenu.scss";
 @import "./components/views/location/_MapError.scss";
 @import "./components/views/location/_ShareDialogButtons.scss";

res/css/components/views/beacon/_LeftPanelLiveShareWarning.scss

@@ -0,0 +1,31 @@
+/*
+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.
+*/
+
+.mx_LeftPanelLiveShareWarning {
+    width: 100%;
+    box-sizing: border-box;
+
+    padding: $spacing-4;
+    text-align: center;
+
+    background-color: $accent;
+    color: #fff;
+    font-size: $font-10px;
+
+    // panel backdrops overlay the whole sidepanel
+    // go above to get hover for title
+    z-index: 1;
+}

res/css/structures/_LeftPanel.scss

@@ -23,13 +23,20 @@ $roomListCollapsedWidth: 68px;
     }
 }
 
-.mx_LeftPanel_wrapper {
+.mx_LeftPanel_outerWrapper {
     display: flex;
+    flex-direction: column;
     max-width: 50%;
     position: relative;
 
     // Contain the amount of layers rendered by constraining what actually needs re-layering via css
     contain: layout paint;
+}
+
+.mx_LeftPanel_wrapper {
+    display: flex;
+    flex-direction: row;
+    flex: 1;
 
     .mx_LeftPanel_wrapper--user {
         background-color: $roomlist-bg-color;

res/css/structures/_MatrixChat.scss

@@ -63,7 +63,7 @@ limitations under the License.
 }
 
 /* not the left panel, and not the resize handle, so the roomview/groupview/... */
-.mx_MatrixChat > :not(.mx_LeftPanel):not(.mx_SpacePanel):not(.mx_ResizeHandle):not(.mx_LeftPanel_wrapper) {
+.mx_MatrixChat > :not(.mx_LeftPanel):not(.mx_SpacePanel):not(.mx_ResizeHandle):not(.mx_LeftPanel_outerWrapper) {
     background-color: $background;
 
     flex: 1 1 0;

src/components/structures/LoggedInView.tsx

@@ -75,6 +75,7 @@ import RightPanelStore from '../../stores/right-panel/RightPanelStore';
 import { TimelineRenderingType } from "../../contexts/RoomContext";
 import { KeyBindingAction } from "../../accessibility/KeyboardShortcuts";
 import { SwitchSpacePayload } from "../../dispatcher/payloads/SwitchSpacePayload";
+import LeftPanelLiveShareWarning from '../views/beacon/LeftPanelLiveShareWarning';
 
 // We need to fetch each pinned message individually (if we don't already have it)
 // so each pinned message may trigger a request. Limit the number per room for sanity.
@@ -694,8 +695,10 @@ class LoggedInView extends React.Component<IProps, IState> {
                 >
                     <ToastContainer />
                     <div className={bodyClasses}>
-                        <div className='mx_LeftPanel_wrapper'>
-                            { SettingsStore.getValue('TagPanel.enableTagPanel') &&
+                        <div className='mx_LeftPanel_outerWrapper'>
+                            <LeftPanelLiveShareWarning isMinimized={this.props.collapseLhs || false} />
+                            <div className='mx_LeftPanel_wrapper'>
+                                { SettingsStore.getValue('TagPanel.enableTagPanel') &&
                                 (<div className="mx_GroupFilterPanelContainer">
                                     <BackdropPanel
                                         blurMultiplier={0.5}
@@ -704,26 +707,27 @@ class LoggedInView extends React.Component<IProps, IState> {
                                     <GroupFilterPanel />
                                     { SettingsStore.getValue("feature_custom_tags") ? <CustomRoomTagPanel /> : null }
                                 </div>)
-                            }
-                            { SpaceStore.spacesEnabled ? <>
+                                }
+                                { SpaceStore.spacesEnabled ? <>
+                                    <BackdropPanel
+                                        blurMultiplier={0.5}
+                                        backgroundImage={this.state.backgroundImage}
+                                    />
+                                    <SpacePanel />
+                                </> : null }
                                 <BackdropPanel
-                                    blurMultiplier={0.5}
                                     backgroundImage={this.state.backgroundImage}
                                 />
-                                <SpacePanel />
-                            </> : null }
-                            <BackdropPanel
-                                backgroundImage={this.state.backgroundImage}
-                            />
-                            <div
-                                className="mx_LeftPanel_wrapper--user"
-                                ref={this._resizeContainer}
-                                data-collapsed={this.props.collapseLhs ? true : undefined}
-                            >
-                                <LeftPanel
-                                    isMinimized={this.props.collapseLhs || false}
-                                    resizeNotifier={this.props.resizeNotifier}
-                                />
+                                <div
+                                    className="mx_LeftPanel_wrapper--user"
+                                    ref={this._resizeContainer}
+                                    data-collapsed={this.props.collapseLhs ? true : undefined}
+                                >
+                                    <LeftPanel
+                                        isMinimized={this.props.collapseLhs || false}
+                                        resizeNotifier={this.props.resizeNotifier}
+                                    />
+                                </div>
                             </div>
                         </div>
                         <ResizeHandle passRef={this.resizeHandler} id="lp-resizer" />

src/components/views/beacon/LeftPanelLiveShareWarning.tsx

@@ -0,0 +1,50 @@
+/*
+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 classNames from 'classnames';
+import React from 'react';
+
+import { useEventEmitterState } from '../../../hooks/useEventEmitter';
+import { _t } from '../../../languageHandler';
+import { OwnBeaconStore, OwnBeaconStoreEvent } from '../../../stores/OwnBeaconStore';
+import { Icon as LiveLocationIcon } from '../../../../res/img/location/live-location.svg';
+
+interface Props {
+    isMinimized?: boolean;
+}
+
+const LeftPanelLiveShareWarning: React.FC<Props> = ({ isMinimized }) => {
+    const hasLiveBeacons = useEventEmitterState(
+        OwnBeaconStore.instance,
+        OwnBeaconStoreEvent.LivenessChange,
+        () => OwnBeaconStore.instance.hasLiveBeacons(),
+    );
+
+    if (!hasLiveBeacons) {
+        return null;
+    }
+
+    return <div
+        className={classNames('mx_LeftPanelLiveShareWarning', {
+            'mx_LeftPanelLiveShareWarning__minimized': isMinimized,
+        })}
+        title={isMinimized ? _t('You are sharing your live location') : undefined}
+    >
+        { isMinimized ? <LiveLocationIcon height={10} /> : _t('You are sharing your live location') }
+    </div>;
+};
+
+export default LeftPanelLiveShareWarning;

src/i18n/strings/en_EN.json

@@ -2956,6 +2956,7 @@
     "Beta": "Beta",
     "Leave the beta": "Leave the beta",
     "Join the beta": "Join the beta",
+    "You are sharing your live location": "You are sharing your live location",
     "Avatar": "Avatar",
     "This room is public": "This room is public",
     "Away": "Away",

test/components/views/beacon/LeftPanelLiveShareWarning-test.tsx

@@ -0,0 +1,80 @@
+/*
+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 from 'react';
+import { mocked } from 'jest-mock';
+import { mount } from 'enzyme';
+
+import '../../../skinned-sdk';
+import LeftPanelLiveShareWarning from '../../../../src/components/views/beacon/LeftPanelLiveShareWarning';
+import { OwnBeaconStore, OwnBeaconStoreEvent } from '../../../../src/stores/OwnBeaconStore';
+import { flushPromises } from '../../../test-utils';
+
+jest.mock('../../../../src/stores/OwnBeaconStore', () => {
+    // eslint-disable-next-line @typescript-eslint/no-var-requires
+    const EventEmitter = require("events");
+    class MockOwnBeaconStore extends EventEmitter {
+        public hasLiveBeacons = jest.fn().mockReturnValue(false);
+    }
+    return {
+        // @ts-ignore
+        ...jest.requireActual('../../../../src/stores/OwnBeaconStore'),
+        OwnBeaconStore: {
+            instance: new MockOwnBeaconStore() as unknown as OwnBeaconStore,
+        },
+    };
+},
+);
+
+describe('<LeftPanelLiveShareWarning />', () => {
+    const defaultProps = {};
+    const getComponent = (props = {}) =>
+        mount(<LeftPanelLiveShareWarning {...defaultProps} {...props} />);
+
+    it('renders nothing when user has no live beacons', () => {
+        const component = getComponent();
+        expect(component.html()).toBe(null);
+    });
+
+    describe('when user has live beacons', () => {
+        beforeEach(() => {
+            mocked(OwnBeaconStore.instance).hasLiveBeacons.mockReturnValue(true);
+        });
+        it('renders correctly when not minimized', () => {
+            const component = getComponent();
+            expect(component).toMatchSnapshot();
+        });
+
+        it('renders correctly when minimized', () => {
+            const component = getComponent({ isMinimized: true });
+            expect(component).toMatchSnapshot();
+        });
+
+        it('removes itself when user stops having live beacons', async () => {
+            const component = getComponent({ isMinimized: true });
+            // started out rendered
+            expect(component.html()).toBeTruthy();
+
+            mocked(OwnBeaconStore.instance).hasLiveBeacons.mockReturnValue(false);
+            OwnBeaconStore.instance.emit(OwnBeaconStoreEvent.LivenessChange, false);
+
+            await flushPromises();
+            component.setProps({});
+
+            expect(component.html()).toBe(null);
+        });
+    });
+});

test/components/views/beacon/__snapshots__/LeftPanelLiveShareWarning-test.tsx.snap

@@ -0,0 +1,26 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<LeftPanelLiveShareWarning /> when user has live beacons renders correctly when minimized 1`] = `
+<LeftPanelLiveShareWarning
+  isMinimized={true}
+>
+  <div
+    className="mx_LeftPanelLiveShareWarning mx_LeftPanelLiveShareWarning__minimized"
+    title="You are sharing your live location"
+  >
+    <div
+      height={10}
+    />
+  </div>
+</LeftPanelLiveShareWarning>
+`;
+
+exports[`<LeftPanelLiveShareWarning /> when user has live beacons renders correctly when not minimized 1`] = `
+<LeftPanelLiveShareWarning>
+  <div
+    className="mx_LeftPanelLiveShareWarning"
+  >
+    You are sharing your live location
+  </div>
+</LeftPanelLiveShareWarning>
+`;