PLT-3455 More channels filter (#4022)

5 files changed, 229 insertions, 68 deletions

diff --git a/webapp/components/filtered_channel_list.jsx b/webapp/components/filtered_channel_list.jsx
new file mode 100644
index 000000000..259c5cbf2
--- /dev/null
+++ b/webapp/components/filtered_channel_list.jsx
@@ -0,0 +1,180 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import $ from 'jquery';
+import ReactDOM from 'react-dom';
+import * as UserAgent from 'utils/user_agent.jsx';
+
+import {localizeMessage} from 'utils/utils.jsx';
+import {FormattedMessage} from 'react-intl';
+
+import React from 'react';
+import loadingGif from 'images/load.gif';
+
+export default class FilteredChannelList extends React.Component {
+    constructor(props) {
+        super(props);
+
+        this.handleFilterChange = this.handleFilterChange.bind(this);
+        this.createChannelRow = this.createChannelRow.bind(this);
+        this.filterChannels = this.filterChannels.bind(this);
+
+        this.state = {
+            filter: '',
+            joiningChannel: '',
+            channels: this.filterChannels(props.channels)
+        };
+    }
+
+    componentWillReceiveProps(nextProps) {
+        // assume the channel list is immutable
+        if (this.props.channels !== nextProps.channels) {
+            this.setState({
+                channels: this.filterChannels(nextProps.channels)
+            });
+        }
+    }
+
+    componentDidMount() {
+        // only focus the search box on desktop so that we don't cause the keyboard to open on mobile
+        if (!UserAgent.isMobileApp()) {
+            ReactDOM.findDOMNode(this.refs.filter).focus();
+        }
+    }
+
+    componentDidUpdate(prevProps, prevState) {
+        if (prevState.filter !== this.state.filter) {
+            $(ReactDOM.findDOMNode(this.refs.channelList)).scrollTop(0);
+        }
+    }
+
+    handleJoin(channel) {
+        this.setState({joiningChannel: channel.id});
+        this.props.handleJoin(
+            channel,
+            () => {
+                this.setState({joiningChannel: ''});
+            });
+    }
+
+    createChannelRow(channel) {
+        let joinButton;
+        if (this.state.joiningChannel === channel.id) {
+            joinButton = (
+                <img
+                    className='join-channel-loading-gif'
+                    src={loadingGif}
+                />
+            );
+        } else {
+            joinButton = (
+                <button
+                    onClick={this.handleJoin.bind(this, channel)}
+                    className='btn btn-primary'
+                >
+                    <FormattedMessage
+                        id='more_channels.join'
+                        defaultMessage='Join'
+                    />
+                </button>
+            );
+        }
+
+        return (
+            <div
+                className='more-modal__row'
+                key={channel.id}
+            >
+                <div className='more-modal__details'>
+                    <p className='more-modal__name'>{channel.display_name}</p>
+                    <p className='more-modal__description'>{channel.purpose}</p>
+                </div>
+                <div className='more-modal__actions'>
+                    {joinButton}
+                </div>
+            </div>
+        );
+    }
+
+    filterChannels(channels) {
+        if (!this.state || !this.state.filter) {
+            return channels;
+        }
+
+        return channels.filter((chan) => {
+            const filter = this.state.filter.toLowerCase();
+            return !!((chan.name.toLowerCase().indexOf(filter) !== -1 || chan.display_name.toLowerCase().indexOf(filter) !== -1) && chan.delete_at === 0);
+        });
+    }
+
+    handleFilterChange(e) {
+        this.setState({
+            filter: e.target.value
+        });
+    }
+
+    render() {
+        let channels = this.state.channels;
+
+        if (this.state.filter && this.state.filter.length > 0) {
+            channels = this.filterChannels(channels);
+        }
+
+        let count;
+        if (channels.length === this.props.channels.length) {
+            count = (
+                <FormattedMessage
+                    id='filtered_channels_list.count'
+                    defaultMessage='{count} {count, plural, =0 {0 channels} one {channel} other {channels}}'
+                    values={{
+                        count: channels.length
+                    }}
+                />
+            );
+        } else {
+            count = (
+                <FormattedMessage
+                    id='filtered_channels_list.countTotal'
+                    defaultMessage='{count} {count, plural, =0 {0 channels} one {channel} other {channels}} of {total} Total'
+                    values={{
+                        count: channels.length,
+                        total: this.props.channels.length
+                    }}
+                />
+            );
+        }
+
+        return (
+            <div className='filtered-user-list'>
+                <div className='filter-row'>
+                    <div className='col-sm-6'>
+                        <input
+                            ref='filter'
+                            className='form-control filter-textbox'
+                            placeholder={localizeMessage('filtered_channels_list.search', 'Search channels')}
+                            onInput={this.handleFilterChange}
+                        />
+                    </div>
+                    <div className='col-sm-12'>
+                        <span className='channel-count pull-left'>{count}</span>
+                    </div>
+                </div>
+                <div
+                    ref='channelList'
+                    className='more-modal__list'
+                >
+                    {channels.map(this.createChannelRow)}
+                </div>
+            </div>
+        );
+    }
+}
+
+FilteredChannelList.defaultProps = {
+    channels: []
+};
+
+FilteredChannelList.propTypes = {
+    channels: React.PropTypes.arrayOf(React.PropTypes.object),
+    handleJoin: React.PropTypes.func.isRequired
+};
diff --git a/webapp/components/more_channels.jsx b/webapp/components/more_channels.jsx
index 724cd2f60..00e7ecf78 100644
--- a/webapp/components/more_channels.jsx
+++ b/webapp/components/more_channels.jsx
@@ -4,6 +4,7 @@
 import $ from 'jquery';
 import LoadingScreen from './loading_screen.jsx';
 import NewChannelFlow from './new_channel_flow.jsx';
+import FilteredChannelList from './filtered_channel_list.jsx';
 
 import ChannelStore from 'stores/channel_store.jsx';
 import UserStore from 'stores/user_store.jsx';
@@ -18,18 +19,8 @@ import {FormattedMessage} from 'react-intl';
 import {browserHistory} from 'react-router/es6';
 
 import React from 'react';
-import ReactDOM from 'react-dom';
 import PureRenderMixin from 'react-addons-pure-render-mixin';
 
-import loadingGif from 'images/load.gif';
-
-function getStateFromStores() {
-    return {
-        channels: ChannelStore.getMoreAll(),
-        serverError: null
-    };
-}
-
 export default class MoreChannels extends React.Component {
     constructor(props) {
         super(props);
@@ -37,100 +28,78 @@ export default class MoreChannels extends React.Component {
         this.onListenerChange = this.onListenerChange.bind(this);
         this.handleJoin = this.handleJoin.bind(this);
         this.handleNewChannel = this.handleNewChannel.bind(this);
-        this.createChannelRow = this.createChannelRow.bind(this);
 
         this.shouldComponentUpdate = PureRenderMixin.shouldComponentUpdate.bind(this);
 
-        var initState = getStateFromStores();
+        const initState = this.getStateFromStores();
         initState.channelType = '';
-        initState.joiningChannel = '';
         initState.showNewChannelModal = false;
         this.state = initState;
     }
+
     componentDidMount() {
+        const self = this;
         ChannelStore.addMoreChangeListener(this.onListenerChange);
-        $(ReactDOM.findDOMNode(this.refs.modal)).on('shown.bs.modal', () => {
+
+        $(this.refs.modal).on('shown.bs.modal', () => {
             AsyncClient.getMoreChannels(true);
         });
 
-        var self = this;
-        $(ReactDOM.findDOMNode(this.refs.modal)).on('show.bs.modal', (e) => {
-            var button = e.relatedTarget;
+        $(this.refs.modal).on('show.bs.modal', (e) => {
+            const button = e.relatedTarget;
             self.setState({channelType: $(button).attr('data-channeltype')});
         });
     }
+
     componentWillUnmount() {
         ChannelStore.removeMoreChangeListener(this.onListenerChange);
     }
+
+    getStateFromStores() {
+        return {
+            channels: ChannelStore.getMoreAll(),
+            serverError: null
+        };
+    }
+
     onListenerChange() {
-        var newState = getStateFromStores();
+        const newState = this.getStateFromStores();
         if (!Utils.areObjectsEqual(newState.channels, this.state.channels)) {
             this.setState(newState);
         }
     }
-    handleJoin(channel) {
-        this.setState({joiningChannel: channel.id});
+
+    handleJoin(channel, done) {
         GlobalActions.emitJoinChannelEvent(
             channel,
             () => {
-                $(ReactDOM.findDOMNode(this.refs.modal)).modal('hide');
+                $(this.refs.modal).modal('hide');
                 browserHistory.push(TeamStore.getCurrentTeamRelativeUrl() + '/channels/' + channel.name);
-                this.setState({joiningChannel: ''});
+                if (done) {
+                    done();
+                }
             },
             (err) => {
-                this.setState({joiningChannel: '', serverError: err.message});
+                this.setState({serverError: err.message});
+                if (done) {
+                    done();
+                }
             }
         );
     }
+
     handleNewChannel() {
-        $(ReactDOM.findDOMNode(this.refs.modal)).modal('hide');
+        $(this.refs.modal).modal('hide');
         this.setState({showNewChannelModal: true});
     }
-    createChannelRow(channel) {
-        let joinButton;
-        if (this.state.joiningChannel === channel.id) {
-            joinButton = (
-                <img
-                    className='join-channel-loading-gif'
-                    src={loadingGif}
-                />
-            );
-        } else {
-            joinButton = (
-                <button
-                    onClick={this.handleJoin.bind(self, channel)}
-                    className='btn btn-primary'
-                >
-                    <FormattedMessage
-                        id='more_channels.join'
-                        defaultMessage='Join'
-                    />
-                </button>
-            );
-        }
 
-        return (
-            <div
-                className='more-modal__row'
-                key={channel.id}
-            >
-                <div className='more-modal__details'>
-                    <p className='more-modal__name'>{channel.display_name}</p>
-                    <p className='more-modal__description'>{channel.purpose}</p>
-                </div>
-                <div className='more-modal__actions'>
-                    {joinButton}
-                </div>
-            </div>
-        );
-    }
     render() {
         let maxHeight = 1000;
         if (Utils.windowHeight() <= 1200) {
             maxHeight = Utils.windowHeight() - 300;
         }
 
-        var serverError;
+        let serverError;
         if (this.state.serverError) {
             serverError = <div className='form-group has-error'><label className='control-label'>{this.state.serverError}</label></div>;
         }
@@ -170,7 +139,7 @@ export default class MoreChannels extends React.Component {
             }
         }
 
-        var moreChannels;
+        let moreChannels;
 
         if (this.state.channels != null) {
             var channels = this.state.channels;
@@ -178,9 +147,10 @@ export default class MoreChannels extends React.Component {
                 moreChannels = <LoadingScreen/>;
             } else if (channels.length) {
                 moreChannels = (
-                    <div className='more-modal__list'>
-                        {channels.map(this.createChannelRow)}
-                    </div>
+                    <FilteredChannelList
+                        channels={channels}
+                        handleJoin={this.handleJoin}
+                    />
                 );
             } else {
                 moreChannels = (
diff --git a/webapp/i18n/en.json b/webapp/i18n/en.json
index 4a6293b2d..f9b6149f0 100644
--- a/webapp/i18n/en.json
+++ b/webapp/i18n/en.json
@@ -1182,6 +1182,9 @@
   "file_upload.filesAbove": "Files above {max}MB cannot be uploaded: {filenames}",
   "file_upload.limited": "Uploads limited to {count} files maximum. Please use additional posts for more files.",
   "file_upload.pasted": "Image Pasted at ",
+  "filtered_channels_list.count": "{count} {count, plural, =0 {0 channels} one {channel} other {channels}}",
+  "filtered_channels_list.countTotal": "{count} {count, plural, =0 {0 channels} one {channel} other {channels}} of {total} Total",
+  "filtered_channels_list.search": "Search channels",
   "filtered_user_list.any_team": "All Users",
   "filtered_user_list.count": "{count} {count, plural, =0 {0 members} one {member} other {members}}",
   "filtered_user_list.countTotal": "{count} {count, plural, =0 {0 members} one {member} other {members}} of {total} Total",
diff --git a/webapp/sass/components/_modal.scss b/webapp/sass/components/_modal.scss
index 837db2f44..737a8f98f 100644
--- a/webapp/sass/components/_modal.scss
+++ b/webapp/sass/components/_modal.scss
@@ -227,7 +227,14 @@
 
         &.more-channel__modal {
             .modal-body {
-                padding: 0;
+                overflow-x: hidden;
+                padding: 10px 0 20px;
+            }
+
+            .channel-count {
+                @include opacity(.8);
+                float: right;
+                margin-top: 5px;
             }
         }
 
diff --git a/webapp/sass/responsive/_mobile.scss b/webapp/sass/responsive/_mobile.scss
index 32f3206a3..e00b818e7 100644
--- a/webapp/sass/responsive/_mobile.scss
+++ b/webapp/sass/responsive/_mobile.scss
@@ -307,7 +307,8 @@
         max-width: calc(100% - 10px);
     }
 
-    .modal-direct-channels {
+    .modal-direct-channels,
+    .more-channel__modal {
         .member-count {
             display: block;
             float: none;