element-web/src/components/views/rooms/ThirdPartyMemberInfo.js

/*
Copyright 2019 New Vector Ltd.

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 PropTypes from 'prop-types';
import MatrixClientPeg from "../../../MatrixClientPeg";
import {MatrixEvent} from "matrix-js-sdk";
import {_t} from "../../../languageHandler";
import dis from "../../../dispatcher";
import sdk from "../../../index";
import Modal from "../../../Modal";

export default class ThirdPartyMemberInfo extends React.Component {
    static propTypes = {
        event: PropTypes.instanceOf(MatrixEvent).isRequired,
    };

    constructor(props) {
        super(props);

        const room = MatrixClientPeg.get().getRoom(this.props.event.getRoomId());
        const me = room.getMember(MatrixClientPeg.get().getUserId());
        const powerLevels = room.currentState.getStateEvents("m.room.power_levels", "");

        let kickLevel = powerLevels ? powerLevels.getContent().kick : 50;
        if (typeof(kickLevel) !== 'number') kickLevel = 50;

        const sender = room.getMember(this.props.event.getSender());

        this.state = {
            stateKey: this.props.event.getStateKey(),
            roomId: this.props.event.getRoomId(),
            displayName: this.props.event.getContent().display_name,
            invited: true,
            canKick: me ? me.powerLevel > kickLevel : false,
            senderName: sender ? sender.name : this.props.event.getSender(),
        };
    }

    componentWillMount(): void {
        MatrixClientPeg.get().on("RoomState.events", this.onRoomStateEvents);
    }

    componentWillUnmount(): void {
        const client = MatrixClientPeg.get();
        if (client) {
            client.removeListener("RoomState.events", this.onRoomStateEvents);
        }
    }

    onRoomStateEvents = (ev) => {
        if (ev.getType() === "m.room.third_party_invite" && ev.getStateKey() === this.state.stateKey) {
            const newDisplayName = ev.getContent().display_name;
            const isInvited = !!newDisplayName; // display_name indicates a valid invite

            const newState = {invited: isInvited};
            if (newDisplayName) newState['displayName'] = newDisplayName;
            this.setState(newState);
        }
    };

    onCancel = () => {
        dis.dispatch({
            action: "view_3pid_invite",
            event: null,
        });
    };

    onKickClick = () => {
        MatrixClientPeg.get().sendStateEvent(this.state.roomId, "m.room.third_party_invite", {}, this.state.stateKey)
            .catch((err) => {
                console.error(err);

                // Revert echo because of error
                this.setState({invited: true});

                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                Modal.createTrackedDialog('Revoke 3pid invite failed', '', ErrorDialog, {
                    title: _t("Failed to revoke invite"),
                    description: _t(
                        "Could not revoke the invite. The server may be experiencing a temporary problem or " +
                        "you do not have sufficient permissions to revoke the invite.",
                    ),
                });
            });

        // Local echo
        this.setState({invited: false});
    };

    render() {
        const AccessibleButton = sdk.getComponent("elements.AccessibleButton");

        let adminTools = null;
        if (this.state.canKick && this.state.invited) {
            adminTools = (
                <div className="mx_MemberInfo_container">
                    <h3>{_t("Admin Tools")}</h3>
                    <div className="mx_MemberInfo_buttons">
                        <AccessibleButton className="mx_MemberInfo_field" onClick={this.onKickClick}>
                            {_t("Revoke invite")}
                        </AccessibleButton>
                    </div>
                </div>
            );
        }

        // We shamelessly rip off the MemberInfo styles here.
        return (
            <div className="mx_MemberInfo">
                <div className="mx_MemberInfo_name">
                    <AccessibleButton className="mx_MemberInfo_cancel"
                                      onClick={this.onCancel}
                                      title={_t('Close')}
                    />
                    <h2>{this.state.displayName}</h2>
                </div>
                <div className="mx_MemberInfo_container">
                    <div className="mx_MemberInfo_profile">
                        <div className="mx_MemberInfo_profileField">
                            {_t("Invited by %(sender)s", {sender: this.state.senderName})}
                        </div>
                    </div>
                </div>
                {adminTools}
            </div>
        );
    }
}