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Merge pull request #1412 from matrix-org/dbkr/truncatedlist_experiment 

Allow TruncatedList to get children via a callback
pull/21833/head
David Baker 2017-09-22 16:25:45 +01:00 committed by GitHub
parent aed1b9072d 621a108b5e
commit a868fa4be9
2 changed files with 93 additions and 44 deletions
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59
src/components/views/elements/TruncatedList.js
View File

@ -27,6 +27,15 @@ module.exports = React.createClass({
truncateAt: PropTypes.number,
// The className to apply to the wrapping div
className: PropTypes.string,
// A function that returns the children to be rendered into the element.
// function getChildren(start: number, end: number): Array<React.Node>
// The start element is included, the end is not (as in `slice`).
// If omitted, the React child elements will be used. This parameter can be used
// to avoid creating unnecessary React elements.
getChildren: PropTypes.func,
// A function that should return the total number of child element available.
// Required if getChildren is supplied.
getChildCount: PropTypes.func,
// A function which will be invoked when an overflow element is required.
// This will be inserted after the children.
createOverflowElement: PropTypes.func,
@ -43,33 +52,49 @@ module.exports = React.createClass({
};
},
_getChildren: function(start, end) {
if (this.props.getChildren && this.props.getChildCount) {
return this.props.getChildren(start, end);
} else {
// XXX: I'm not sure why anything would pass null into this, it seems
// like a bizzare case to handle, but I'm preserving the behaviour.
// (see commit 38d5c7d5c5d5a34dc16ef5d46278315f5c57f542)
return React.Children.toArray(this.props.children).filter((c) => {
return c != null;
}).slice(start, end);
}
},
_getChildCount: function() {
if (this.props.getChildren && this.props.getChildCount) {
return this.props.getChildCount();
} else {
return React.Children.toArray(this.props.children).filter((c) => {
return c != null;
}).length;
}
},
render: function() {
let childsJsx = this.props.children;
let overflowJsx;
const childArray = React.Children.toArray(this.props.children).filter((c) => {
return c != null;
});
const childCount = childArray.length;
let overflowNode = null;
const totalChildren = this._getChildCount();
let upperBound = totalChildren;
if (this.props.truncateAt >= 0) {
const overflowCount = childCount - this.props.truncateAt;
const overflowCount = totalChildren - this.props.truncateAt;
if (overflowCount > 1) {
overflowJsx = this.props.createOverflowElement(
overflowCount, childCount,
overflowNode = this.props.createOverflowElement(
overflowCount, totalChildren,
);
// cut out the overflow elements
childArray.splice(childCount - overflowCount, overflowCount);
childsJsx = childArray; // use what is left
upperBound = this.props.truncateAt;
}
}
const childNodes = this._getChildren(0, upperBound);
return (
<div className={this.props.className}>
{childsJsx}
{overflowJsx}
{childNodes}
{overflowNode}
</div>
);
},

78
src/components/views/rooms/MemberList.js
View File

@ -1,6 +1,7 @@
/*
Copyright 2015, 2016 OpenMarket Ltd
Copyright 2017 Vector Creations Ltd
Copyright 2017 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.
@ -14,10 +15,11 @@ 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.
*/
var React = require('react');
import React from 'react';
import { _t } from '../../../languageHandler';
var classNames = require('classnames');
var Matrix = require("matrix-js-sdk");
import classNames from 'classnames';
import Matrix from 'matrix-js-sdk';
import Promise from 'bluebird';
var MatrixClientPeg = require("../../../MatrixClientPeg");
var Modal = require("../../../Modal");
@ -27,13 +29,13 @@ var GeminiScrollbar = require('react-gemini-scrollbar');
var rate_limited_func = require('../../../ratelimitedfunc');
var CallHandler = require("../../../CallHandler");
var INITIAL_LOAD_NUM_MEMBERS = 30;
const INITIAL_LOAD_NUM_MEMBERS = 30;
module.exports = React.createClass({
displayName: 'MemberList',
getInitialState: function() {
var state = {
const state = {
members: [],
// ideally we'd size this to the page height, but
// in practice I find that a little constraining
@ -48,6 +50,8 @@ module.exports = React.createClass({
this.memberDict = this.getMemberDict();
state.members = this.roomMembers();
state.filteredJoinedMembers = this._filterMembers(state.members, 'join');
state.filteredInvitedMembers = this._filterMembers(state.members, 'invite');
return state;
},
@ -146,10 +150,12 @@ module.exports = React.createClass({
// console.log("Updating memberlist");
this.memberDict = this.getMemberDict();
var self = this;
this.setState({
members: self.roomMembers()
});
const newState = {
members: this.roomMembers(),
};
newState.filteredJoinedMembers = this._filterMembers(newState.members, 'join');
newState.filteredInvitedMembers = this._filterMembers(newState.members, 'invite');
this.setState(newState);
}, 500),
getMemberDict: function() {
@ -279,17 +285,17 @@ module.exports = React.createClass({
},
onSearchQueryChanged: function(ev) {
this.setState({ searchQuery: ev.target.value });
const q = ev.target.value;
this.setState({
searchQuery: q,
filteredJoinedMembers: this._filterMembers(this.state.members, 'join', q),
filteredInvitedMembers: this._filterMembers(this.state.members, 'invite', q),
});
},
makeMemberTiles: function(membership, query) {
var MemberTile = sdk.getComponent("rooms.MemberTile");
query = (query || "").toLowerCase();
var self = this;
var memberList = self.state.members.filter(function(userId) {
var m = self.memberDict[userId];
_filterMembers: function(members, membership, query) {
return members.filter((userId) => {
const m = this.memberDict[userId];
if (query) {
const matchesName = m.name.toLowerCase().indexOf(query) !== -1;
@ -301,14 +307,23 @@ module.exports = React.createClass({
}
return m.membership == membership;
}).map(function(userId) {
var m = self.memberDict[userId];
});
},
_makeMemberTiles: function(members, membership) {
const MemberTile = sdk.getComponent("rooms.MemberTile");
const memberList = members.map((userId) => {
const m = this.memberDict[userId];
return (
<MemberTile key={userId} member={m} ref={userId} />
);
});
// XXX: surely this is not the right home for this logic.
// Double XXX: Now it's really, really not the right home for this logic:
// we shouldn't even be passing in the 'membership' param to this function.
// Ew, ew, and ew.
if (membership === "invite") {
// include 3pid invites (m.room.third_party_invite) state events.
// The HS may have already converted these into m.room.member invites so
@ -341,9 +356,17 @@ module.exports = React.createClass({
return memberList;
},
_getChildrenJoined: function(start, end) {
return this._makeMemberTiles(this.state.filteredJoinedMembers.slice(start, end));
},
_getChildCountJoined: function() {
return this.state.filteredJoinedMembers.length;
},
render: function() {
var invitedSection = null;
var invitedMemberTiles = this.makeMemberTiles('invite', this.state.searchQuery);
let invitedSection = null;
const invitedMemberTiles = this._makeMemberTiles(this.state.filteredInvitedMembers, 'invite');
if (invitedMemberTiles.length > 0) {
invitedSection = (
<div className="mx_MemberList_invited">
@ -355,7 +378,7 @@ module.exports = React.createClass({
);
}
var inputBox = (
const inputBox = (
<form autoComplete="off">
<input className="mx_MemberList_query" id="mx_MemberList_query" type="text"
onChange={this.onSearchQueryChanged} value={this.state.searchQuery}
@ -363,15 +386,16 @@ module.exports = React.createClass({
</form>
);
var TruncatedList = sdk.getComponent("elements.TruncatedList");
const TruncatedList = sdk.getComponent("elements.TruncatedList");
return (
<div className="mx_MemberList">
{ inputBox }
<GeminiScrollbar autoshow={true} className="mx_MemberList_joined mx_MemberList_outerWrapper">
<TruncatedList className="mx_MemberList_wrapper" truncateAt={this.state.truncateAt}
createOverflowElement={this._createOverflowTile}>
{this.makeMemberTiles('join', this.state.searchQuery)}
</TruncatedList>
createOverflowElement={this._createOverflowTile}
getChildren={this._getChildrenJoined}
getChildCount={this._getChildCountJoined}
/>
{invitedSection}
</GeminiScrollbar>
</div>