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WIP notif panel
This commit is contained in:
Matthew Hodgson
parent
603bf8c194
commit
d9ffe30a0d
731
src/components/structures/NotificationPanel.js
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731
src/components/structures/NotificationPanel.js
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/*
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Copyright 2016 OpenMarket Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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var React = require('react');
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var ReactDOM = require("react-dom");
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var q = require("q");
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var Matrix = require("matrix-js-sdk");
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var sdk = require('../../index');
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var MatrixClientPeg = require("../../MatrixClientPeg");
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var dis = require("../../dispatcher");
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var ObjectUtils = require('../../ObjectUtils');
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var Modal = require("../../Modal");
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var UserActivity = require("../../UserActivity");
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var KeyCode = require('../../KeyCode');
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var PAGINATE_SIZE = 20;
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var INITIAL_SIZE = 20;
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var TIMELINE_CAP = 250; // the most events to show in a timeline
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var DEBUG = false;
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if (DEBUG) {
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// using bind means that we get to keep useful line numbers in the console
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var debuglog = console.log.bind(console);
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} else {
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var debuglog = function () {};
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}
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/*
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* Component which shows the notification timeline, based on TimelinePanel
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*/
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var NotificationPanel = React.createClass({
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displayName: 'NotificationPanel',
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propTypes: {
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// where to position the event given by eventId, in pixels from the
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// bottom of the viewport. If not given, will try to put the event
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// half way down the viewport.
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eventPixelOffset: React.PropTypes.number,
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// callback which is called when the panel is scrolled.
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onScroll: React.PropTypes.func,
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// opacity for dynamic UI fading effects
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opacity: React.PropTypes.number,
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},
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getInitialState: function() {
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return {
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events: [],
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notificationsLoading: true, // track whether our room timeline is loading
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// canBackPaginate == false may mean:
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//
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// * we haven't (successfully) loaded the notifications yet, or:
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//
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// * the server indicated that there were no more visible events
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// (normally implying we got to the start of time), or:
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//
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// * we gave up asking the server for more events
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canBackPaginate: false,
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// canForwardPaginate == false may mean:
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//
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// * we haven't (successfully) loaded the notifications yet
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//
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// * we have got to the end of time and are now tracking live
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// notifications
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//
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// * we are looking at some historical point, but gave up asking
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// the server for more events
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canForwardPaginate: false,
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backPaginating: false,
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forwardPaginating: false,
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};
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},
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componentWillMount: function() {
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debuglog("NotificationPanel: mounting");
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MatrixClientPeg.get().on("Notification.timeline", this.onNotificationTimeline);
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this._initNotification(this.props);
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},
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shouldComponentUpdate: function(nextProps, nextState) {
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if (!ObjectUtils.shallowEqual(this.props, nextProps)) {
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if (DEBUG) {
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console.group("NotificationPanel.shouldComponentUpdate: props change");
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console.log("props before:", this.props);
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console.log("props after:", nextProps);
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console.groupEnd();
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}
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return true;
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}
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if (!ObjectUtils.shallowEqual(this.state, nextState)) {
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if (DEBUG) {
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console.group("NotificationPanel.shouldComponentUpdate: state change");
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console.log("state before:", this.state);
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console.log("state after:", nextState);
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console.groupEnd();
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}
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return true;
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}
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return false;
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},
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componentWillUnmount: function() {
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// set a boolean to say we've been unmounted, which any pending
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// promises can use to throw away their results.
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//
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// (We could use isMounted, but facebook have deprecated that.)
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this.unmounted = true;
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var client = MatrixClientPeg.get();
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if (client) {
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client.removeListener("Notification.timeline", this.onNotificationTimeline);
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}
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},
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// set off a pagination request.
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onMessageListFillRequest: function(backwards) {
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var dir = backwards ? EventTimeline.BACKWARDS : EventTimeline.FORWARDS;
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var canPaginateKey = backwards ? 'canBackPaginate' : 'canForwardPaginate';
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var paginatingKey = backwards ? 'backPaginating' : 'forwardPaginating';
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if (!this.state[canPaginateKey]) {
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debuglog("NotificationPanel: have given up", dir, "paginating notifications");
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return q(false);
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}
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if(!this._timelineWindow.canPaginate(dir)) {
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debuglog("TimelinePanel: can't", dir, "paginate any further");
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this.setState({[canPaginateKey]: false});
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return q(false);
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}
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debuglog("TimelinePanel: Initiating paginate; backwards:"+backwards);
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this.setState({[paginatingKey]: true});
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return this._timelineWindow.paginate(dir, PAGINATE_SIZE).then((r) => {
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if (this.unmounted) { return; }
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debuglog("TimelinePanel: paginate complete backwards:"+backwards+"; success:"+r);
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var newState = {
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[paginatingKey]: false,
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[canPaginateKey]: r,
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events: this._getEvents(),
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};
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// moving the window in this direction may mean that we can now
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// paginate in the other where we previously could not.
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var otherDirection = backwards ? EventTimeline.FORWARDS : EventTimeline.BACKWARDS;
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var canPaginateOtherWayKey = backwards ? 'canForwardPaginate' : 'canBackPaginate';
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if (!this.state[canPaginateOtherWayKey] &&
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this._timelineWindow.canPaginate(otherDirection)) {
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debuglog('TimelinePanel: can now', otherDirection, 'paginate again');
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newState[canPaginateOtherWayKey] = true;
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}
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this.setState(newState);
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return r;
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});
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},
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onMessageListScroll: function () {
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if (this.props.onScroll) {
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this.props.onScroll();
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}
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// we hide the read marker when it first comes onto the screen, but if
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// it goes back off the top of the screen (presumably because the user
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// clicks on the 'jump to bottom' button), we need to re-enable it.
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if (this.getReadMarkerPosition() < 0) {
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this.setState({readMarkerVisible: true});
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}
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},
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onRoomTimeline: function(ev, room, toStartOfTimeline, removed, data) {
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// ignore events for other rooms
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if (room !== this.props.room) return;
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// ignore anything but real-time updates at the end of the room:
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// updates from pagination will happen when the paginate completes.
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if (toStartOfTimeline || !data || !data.liveEvent) return;
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if (!this.refs.messagePanel) return;
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if (!this.refs.messagePanel.getScrollState().stuckAtBottom) {
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// we won't load this event now, because we don't want to push any
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// events off the other end of the timeline. But we need to note
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// that we can now paginate.
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this.setState({canForwardPaginate: true});
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return;
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}
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// tell the timeline window to try to advance itself, but not to make
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// an http request to do so.
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//
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// we deliberately avoid going via the ScrollPanel for this call - the
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// ScrollPanel might already have an active pagination promise, which
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// will fail, but would stop us passing the pagination request to the
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// timeline window.
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//
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// see https://github.com/vector-im/vector-web/issues/1035
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this._timelineWindow.paginate(EventTimeline.FORWARDS, 1, false).done(() => {
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if (this.unmounted) { return; }
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var events = this._timelineWindow.getEvents();
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var lastEv = events[events.length-1];
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// if we're at the end of the live timeline, append the pending events
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if (!this._timelineWindow.canPaginate(EventTimeline.FORWARDS)) {
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events.push(... this.props.room.getPendingEvents());
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}
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var updatedState = {events: events};
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// when a new event arrives when the user is not watching the
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// window, but the window is in its auto-scroll mode, make sure the
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// read marker is visible.
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//
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// We ignore events we have sent ourselves; we don't want to see the
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// read-marker when a remote echo of an event we have just sent takes
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// more than the timeout on userCurrentlyActive.
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//
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var myUserId = MatrixClientPeg.get().credentials.userId;
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var sender = ev.sender ? ev.sender.userId : null;
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var callback = null;
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if (sender != myUserId && !UserActivity.userCurrentlyActive()) {
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updatedState.readMarkerVisible = true;
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} else if(lastEv && this.getReadMarkerPosition() === 0) {
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// we know we're stuckAtBottom, so we can advance the RM
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// immediately, to save a later render cycle
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this._setReadMarker(lastEv.getId(), lastEv.getTs(), true);
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updatedState.readMarkerVisible = false;
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updatedState.readMarkerEventId = lastEv.getId();
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callback = this.props.onReadMarkerUpdated;
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}
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this.setState(updatedState, callback);
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});
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},
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onRoomTimelineReset: function(room) {
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if (room !== this.props.room) return;
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if (this.refs.messagePanel && this.refs.messagePanel.isAtBottom()) {
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this._loadTimeline();
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}
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},
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onRoomRedaction: function(ev, room) {
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if (this.unmounted) return;
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// ignore events for other rooms
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if (room !== this.props.room) return;
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// we could skip an update if the event isn't in our timeline,
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// but that's probably an early optimisation.
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this.forceUpdate();
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},
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onRoomReceipt: function(ev, room) {
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if (this.unmounted) return;
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// ignore events for other rooms
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if (room !== this.props.room) return;
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this.forceUpdate();
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},
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onLocalEchoUpdated: function(ev, room, oldEventId) {
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if (this.unmounted) return;
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// ignore events for other rooms
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if (room !== this.props.room) return;
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this._reloadEvents();
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},
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/* jump down to the bottom of this room, where new events are arriving
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*/
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jumpToLiveTimeline: function() {
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// if we can't forward-paginate the existing timeline, then there
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// is no point reloading it - just jump straight to the bottom.
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//
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// Otherwise, reload the timeline rather than trying to paginate
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// through all of space-time.
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if (this._timelineWindow.canPaginate(EventTimeline.FORWARDS)) {
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this._loadTimeline();
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} else {
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if (this.refs.messagePanel) {
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this.refs.messagePanel.scrollToBottom();
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}
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}
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},
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/* scroll to show the read-up-to marker. We put it 1/3 of the way down
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* the container.
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*/
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jumpToReadMarker: function() {
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if (!this.refs.messagePanel)
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return;
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if (!this.state.readMarkerEventId)
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return;
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// we may not have loaded the event corresponding to the read-marker
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// into the _timelineWindow. In that case, attempts to scroll to it
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// will fail.
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//
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// a quick way to figure out if we've loaded the relevant event is
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// simply to check if the messagepanel knows where the read-marker is.
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var ret = this.refs.messagePanel.getReadMarkerPosition();
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if (ret !== null) {
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// The messagepanel knows where the RM is, so we must have loaded
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// the relevant event.
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this.refs.messagePanel.scrollToEvent(this.state.readMarkerEventId,
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0, 1/3);
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return;
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}
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// Looks like we haven't loaded the event corresponding to the read-marker.
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// As with jumpToLiveTimeline, we want to reload the timeline around the
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// read-marker.
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this._loadTimeline(this.state.readMarkerEventId, 0, 1/3);
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},
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/* update the read-up-to marker to match the read receipt
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*/
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forgetReadMarker: function() {
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var rmId = this._getCurrentReadReceipt();
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// see if we know the timestamp for the rr event
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var tl = this.props.room.getTimelineForEvent(rmId);
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var rmTs;
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if (tl) {
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var event = tl.getEvents().find((e) => { return e.getId() == rmId });
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if (event) {
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rmTs = event.getTs();
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}
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}
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this._setReadMarker(rmId, rmTs);
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},
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/* return true if the content is fully scrolled down and we are
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* at the end of the live timeline.
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*/
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isAtEndOfLiveTimeline: function() {
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return this.refs.messagePanel
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&& this.refs.messagePanel.isAtBottom()
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&& this._timelineWindow
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&& !this._timelineWindow.canPaginate(EventTimeline.FORWARDS);
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},
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/* get the current scroll state. See ScrollPanel.getScrollState for
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* details.
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*
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* returns null if we are not mounted.
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*/
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getScrollState: function() {
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if (!this.refs.messagePanel) { return null; }
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return this.refs.messagePanel.getScrollState();
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},
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// returns one of:
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//
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// null: there is no read marker
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// -1: read marker is above the window
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// 0: read marker is visible
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// +1: read marker is below the window
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getReadMarkerPosition: function() {
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if (!this.refs.messagePanel) { return null; }
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var ret = this.refs.messagePanel.getReadMarkerPosition();
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if (ret !== null) {
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return ret;
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}
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// the messagePanel doesn't know where the read marker is.
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// if we know the timestamp of the read marker, make a guess based on that.
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var rmTs = TimelinePanel.roomReadMarkerTsMap[this.props.room.roomId];
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if (rmTs && this.state.events.length > 0) {
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if (rmTs < this.state.events[0].getTs()) {
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return -1;
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} else {
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return 1;
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}
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}
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return null;
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},
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/**
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* called by the parent component when PageUp/Down/etc is pressed.
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*
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* We pass it down to the scroll panel.
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*/
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handleScrollKey: function(ev) {
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if (!this.refs.messagePanel) { return; }
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// jump to the live timeline on ctrl-end, rather than the end of the
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// timeline window.
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if (ev.ctrlKey && ev.keyCode == KeyCode.END) {
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this.jumpToLiveTimeline();
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} else {
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this.refs.messagePanel.handleScrollKey(ev);
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}
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},
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_initTimeline: function(props) {
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var initialEvent = props.eventId;
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var pixelOffset = props.eventPixelOffset;
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// if a pixelOffset is given, it is relative to the bottom of the
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// container. If not, put the event in the middle of the container.
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var offsetBase = 1;
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if (pixelOffset == null) {
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offsetBase = 0.5;
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}
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return this._loadTimeline(initialEvent, pixelOffset, offsetBase);
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},
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/**
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* (re)-load the event timeline, and initialise the scroll state, centered
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* around the given event.
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*
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* @param {string?} eventId the event to focus on. If undefined, will
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* scroll to the bottom of the room.
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*
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* @param {number?} pixelOffset offset to position the given event at
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* (pixels from the offsetBase). If omitted, defaults to 0.
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*
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* @param {number?} offsetBase the reference point for the pixelOffset. 0
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* means the top of the container, 1 means the bottom, and fractional
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* values mean somewhere in the middle. If omitted, it defaults to 0.
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*
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* returns a promise which will resolve when the load completes.
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*/
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_loadTimeline: function(eventId, pixelOffset, offsetBase) {
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this._timelineWindow = new Matrix.TimelineWindow(
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MatrixClientPeg.get(), this.props.room,
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{windowLimit: TIMELINE_CAP});
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var onLoaded = () => {
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this._reloadEvents();
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// If we switched away from the room while there were pending
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// outgoing events, the read-marker will be before those events.
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// We need to skip over any which have subsequently been sent.
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this._advanceReadMarkerPastMyEvents();
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this.setState({
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canBackPaginate: this._timelineWindow.canPaginate(EventTimeline.BACKWARDS),
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canForwardPaginate: this._timelineWindow.canPaginate(EventTimeline.FORWARDS),
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timelineLoading: false,
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}, () => {
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// initialise the scroll state of the message panel
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if (!this.refs.messagePanel) {
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// this shouldn't happen - we know we're mounted because
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// we're in a setState callback, and we know
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// timelineLoading is now false, so render() should have
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// mounted the message panel.
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console.log("can't initialise scroll state because " +
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"messagePanel didn't load");
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return;
|
||||
}
|
||||
if (eventId) {
|
||||
this.refs.messagePanel.scrollToEvent(eventId, pixelOffset,
|
||||
offsetBase);
|
||||
} else {
|
||||
this.refs.messagePanel.scrollToBottom();
|
||||
}
|
||||
|
||||
this.sendReadReceipt();
|
||||
this.updateReadMarker();
|
||||
});
|
||||
};
|
||||
|
||||
var onError = (error) => {
|
||||
this.setState({timelineLoading: false});
|
||||
var msg = error.message ? error.message : JSON.stringify(error);
|
||||
var ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
|
||||
|
||||
var onFinished;
|
||||
|
||||
// if we were given an event ID, then when the user closes the
|
||||
// dialog, let's jump to the end of the timeline. If we weren't,
|
||||
// something has gone badly wrong and rather than causing a loop of
|
||||
// undismissable dialogs, let's just give up.
|
||||
if (eventId) {
|
||||
onFinished = () => {
|
||||
// go via the dispatcher so that the URL is updated
|
||||
dis.dispatch({
|
||||
action: 'view_room',
|
||||
room_id: this.props.room.roomId,
|
||||
});
|
||||
};
|
||||
}
|
||||
var message = "Vector was trying to load a specific point in this room's timeline but ";
|
||||
if (error.errcode == 'M_FORBIDDEN') {
|
||||
message += "you do not have permission to view the message in question.";
|
||||
} else {
|
||||
message += "was unable to find it.";
|
||||
}
|
||||
Modal.createDialog(ErrorDialog, {
|
||||
title: "Failed to load timeline position",
|
||||
description: message,
|
||||
onFinished: onFinished,
|
||||
});
|
||||
}
|
||||
|
||||
var prom = this._timelineWindow.load(eventId, INITIAL_SIZE);
|
||||
|
||||
// if we already have the event in question, TimelineWindow.load
|
||||
// returns a resolved promise.
|
||||
//
|
||||
// In this situation, we don't really want to defer the update of the
|
||||
// state to the next event loop, because it makes room-switching feel
|
||||
// quite slow. So we detect that situation and shortcut straight to
|
||||
// calling _reloadEvents and updating the state.
|
||||
|
||||
if (prom.isFulfilled()) {
|
||||
onLoaded();
|
||||
} else {
|
||||
this.setState({
|
||||
events: [],
|
||||
canBackPaginate: false,
|
||||
canForwardPaginate: false,
|
||||
timelineLoading: true,
|
||||
});
|
||||
|
||||
prom = prom.then(onLoaded, onError)
|
||||
}
|
||||
|
||||
prom.done();
|
||||
},
|
||||
|
||||
// handle the completion of a timeline load or localEchoUpdate, by
|
||||
// reloading the events from the timelinewindow and pending event list into
|
||||
// the state.
|
||||
_reloadEvents: function() {
|
||||
// we might have switched rooms since the load started - just bin
|
||||
// the results if so.
|
||||
if (this.unmounted) return;
|
||||
|
||||
this.setState({
|
||||
events: this._getEvents(),
|
||||
});
|
||||
},
|
||||
|
||||
// get the list of events from the timeline window and the pending event list
|
||||
_getEvents: function() {
|
||||
var events = this._timelineWindow.getEvents();
|
||||
|
||||
// if we're at the end of the live timeline, append the pending events
|
||||
if (!this._timelineWindow.canPaginate(EventTimeline.FORWARDS)) {
|
||||
events.push(... this.props.room.getPendingEvents());
|
||||
}
|
||||
|
||||
return events;
|
||||
},
|
||||
|
||||
_indexForEventId: function(evId) {
|
||||
for (var i = 0; i < this.state.events.length; ++i) {
|
||||
if (evId == this.state.events[i].getId()) {
|
||||
return i;
|
||||
}
|
||||
}
|
||||
return null;
|
||||
},
|
||||
|
||||
_getLastDisplayedEventIndex: function(opts) {
|
||||
opts = opts || {};
|
||||
var ignoreOwn = opts.ignoreOwn || false;
|
||||
var ignoreEchoes = opts.ignoreEchoes || false;
|
||||
var allowPartial = opts.allowPartial || false;
|
||||
|
||||
var messagePanel = this.refs.messagePanel;
|
||||
if (messagePanel === undefined) return null;
|
||||
|
||||
var wrapperRect = ReactDOM.findDOMNode(messagePanel).getBoundingClientRect();
|
||||
var myUserId = MatrixClientPeg.get().credentials.userId;
|
||||
|
||||
for (var i = this.state.events.length-1; i >= 0; --i) {
|
||||
var ev = this.state.events[i];
|
||||
|
||||
if (ignoreOwn && ev.sender && ev.sender.userId == myUserId) {
|
||||
continue;
|
||||
}
|
||||
|
||||
// local echoes have a fake event ID
|
||||
if (ignoreEchoes && ev.status) {
|
||||
continue;
|
||||
}
|
||||
|
||||
var node = messagePanel.getNodeForEventId(ev.getId());
|
||||
if (!node) continue;
|
||||
|
||||
var boundingRect = node.getBoundingClientRect();
|
||||
if ((allowPartial && boundingRect.top < wrapperRect.bottom) ||
|
||||
(!allowPartial && boundingRect.bottom < wrapperRect.bottom)) {
|
||||
return i;
|
||||
}
|
||||
}
|
||||
return null;
|
||||
},
|
||||
|
||||
/**
|
||||
* get the id of the event corresponding to our user's latest read-receipt.
|
||||
*
|
||||
* @param {Boolean} ignoreSynthesized If true, return only receipts that
|
||||
* have been sent by the server, not
|
||||
* implicit ones generated by the JS
|
||||
* SDK.
|
||||
*/
|
||||
_getCurrentReadReceipt: function(ignoreSynthesized) {
|
||||
var client = MatrixClientPeg.get();
|
||||
// the client can be null on logout
|
||||
if (client == null)
|
||||
return null;
|
||||
|
||||
var myUserId = client.credentials.userId;
|
||||
return this.props.room.getEventReadUpTo(myUserId, ignoreSynthesized);
|
||||
},
|
||||
|
||||
_setReadMarker: function(eventId, eventTs, inhibitSetState) {
|
||||
if (TimelinePanel.roomReadMarkerMap[this.props.room.roomId] == eventId) {
|
||||
// don't update the state (and cause a re-render) if there is
|
||||
// no change to the RM.
|
||||
return;
|
||||
}
|
||||
|
||||
// ideally we'd sync these via the server, but for now just stash them
|
||||
// in a map.
|
||||
TimelinePanel.roomReadMarkerMap[this.props.room.roomId] = eventId;
|
||||
|
||||
// in order to later figure out if the read marker is
|
||||
// above or below the visible timeline, we stash the timestamp.
|
||||
TimelinePanel.roomReadMarkerTsMap[this.props.room.roomId] = eventTs;
|
||||
|
||||
if (inhibitSetState) {
|
||||
return;
|
||||
}
|
||||
|
||||
// run the render cycle before calling the callback, so that
|
||||
// getReadMarkerPosition() returns the right thing.
|
||||
this.setState({
|
||||
readMarkerEventId: eventId,
|
||||
}, this.props.onReadMarkerUpdated);
|
||||
},
|
||||
|
||||
render: function() {
|
||||
var MessagePanel = sdk.getComponent("structures.MessagePanel");
|
||||
var Loader = sdk.getComponent("elements.Spinner");
|
||||
|
||||
// just show a spinner while the timeline loads.
|
||||
//
|
||||
// put it in a div of the right class (mx_RoomView_messagePanel) so
|
||||
// that the order in the roomview flexbox is correct, and
|
||||
// mx_RoomView_messageListWrapper to position the inner div in the
|
||||
// right place.
|
||||
//
|
||||
// Note that the click-on-search-result functionality relies on the
|
||||
// fact that the messagePanel is hidden while the timeline reloads,
|
||||
// but that the RoomHeader (complete with search term) continues to
|
||||
// exist.
|
||||
if (this.state.timelineLoading) {
|
||||
return (
|
||||
<div className="mx_RoomView_messagePanel mx_RoomView_messageListWrapper">
|
||||
<Loader />
|
||||
</div>
|
||||
);
|
||||
}
|
||||
|
||||
// give the messagepanel a stickybottom if we're at the end of the
|
||||
// live timeline, so that the arrival of new events triggers a
|
||||
// scroll.
|
||||
//
|
||||
// Make sure that stickyBottom is *false* if we can paginate
|
||||
// forwards, otherwise if somebody hits the bottom of the loaded
|
||||
// events when viewing historical messages, we get stuck in a loop
|
||||
// of paginating our way through the entire history of the room.
|
||||
var stickyBottom = !this._timelineWindow.canPaginate(EventTimeline.FORWARDS);
|
||||
|
||||
return (
|
||||
<MessagePanel ref="messagePanel"
|
||||
hidden={ this.props.hidden }
|
||||
backPaginating={ this.state.backPaginating }
|
||||
forwardPaginating={ this.state.forwardPaginating }
|
||||
events={ this.state.events }
|
||||
highlightedEventId={ this.props.highlightedEventId }
|
||||
readMarkerEventId={ this.state.readMarkerEventId }
|
||||
readMarkerVisible={ this.state.readMarkerVisible }
|
||||
suppressFirstDateSeparator={ this.state.canBackPaginate }
|
||||
showUrlPreview = { this.props.showUrlPreview }
|
||||
ourUserId={ MatrixClientPeg.get().credentials.userId }
|
||||
stickyBottom={ stickyBottom }
|
||||
onScroll={ this.onMessageListScroll }
|
||||
onFillRequest={ this.onMessageListFillRequest }
|
||||
opacity={ this.props.opacity }
|
||||
/>
|
||||
);
|
||||
},
|
||||
});
|
||||
|
||||
module.exports = TimelinePanel;
|
||||
Loading…
Reference in New Issue
Block a user