ref(TS) Convert some native components to TS (#13281)

Remove some @ts-ignores

react/features/chat/components/native/ChatButton.ts

@@ -0,0 +1,80 @@
+import { connect } from 'react-redux';
+
+import { IReduxState } from '../../../app/types';
+import { CHAT_ENABLED } from '../../../base/flags/constants';
+import { getFeatureFlag } from '../../../base/flags/functions';
+import { translate } from '../../../base/i18n/functions';
+import { IconChatUnread, IconMessage } from '../../../base/icons/svg';
+import AbstractButton, { IProps as AbstractButtonProps } from '../../../base/toolbox/components/AbstractButton';
+import { navigate } from '../../../mobile/navigation/components/conference/ConferenceNavigationContainerRef';
+import { screen } from '../../../mobile/navigation/routes';
+import { getUnreadPollCount } from '../../../polls/functions';
+import { getUnreadCount } from '../../functions';
+
+interface IProps extends AbstractButtonProps {
+
+    /**
+     * True if the polls feature is disabled.
+     */
+    _isPollsDisabled?: boolean;
+
+    /**
+     * The unread message count.
+     */
+    _unreadMessageCount: number;
+}
+
+/**
+ * Implements an {@link AbstractButton} to open the chat screen on mobile.
+ */
+class ChatButton extends AbstractButton<IProps> {
+    accessibilityLabel = 'toolbar.accessibilityLabel.chat';
+    icon = IconMessage;
+    label = 'toolbar.chat';
+    toggledIcon = IconChatUnread;
+
+    /**
+     * Handles clicking / pressing the button, and opens the appropriate dialog.
+     *
+     * @private
+     * @returns {void}
+     */
+    _handleClick() {
+        this.props._isPollsDisabled
+            ? navigate(screen.conference.chat)
+            : navigate(screen.conference.chatandpolls.main);
+    }
+
+    /**
+     * Renders the button toggled when there are unread messages.
+     *
+     * @protected
+     * @returns {boolean}
+     */
+    _isToggled() {
+        return Boolean(this.props._unreadMessageCount);
+    }
+}
+
+/**
+ * Maps part of the redux state to the component's props.
+ *
+ * @param {Object} state - The Redux state.
+ * @param {Object} ownProps - The properties explicitly passed to the component instance.
+ * @returns {IProps}
+ */
+function _mapStateToProps(state: IReduxState, ownProps: any) {
+    const enabled = getFeatureFlag(state, CHAT_ENABLED, true);
+    const { disablePolls } = state['features/base/config'];
+    const { visible = enabled } = ownProps;
+
+    return {
+        _isPollsDisabled: disablePolls,
+
+        // The toggled icon should also be available for new polls
+        _unreadMessageCount: getUnreadCount(state) || getUnreadPollCount(state),
+        visible
+    };
+}
+
+export default translate(connect(_mapStateToProps)(ChatButton));