Replaced MentionList and Mention components with AtMentionProvider

8 files changed, 253 insertions, 532 deletions

diff --git a/web/react/components/at_mention_provider.jsx b/web/react/components/at_mention_provider.jsx
new file mode 100644
index 000000000..4d68fef9d
--- /dev/null
+++ b/web/react/components/at_mention_provider.jsx
@@ -0,0 +1,100 @@
+// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import SuggestionStore from '../stores/suggestion_store.jsx';
+import UserStore from '../stores/user_store.jsx';
+import * as Utils from '../utils/utils.jsx';
+
+class AtMentionSuggestion extends React.Component {
+    render() {
+        const {item, isSelection, onClick} = this.props;
+
+        let username;
+        let description;
+        let icon;
+        if (item.username === 'all') {
+            username = 'all';
+            description = 'Notifies everyone in the team';
+            icon = <i className='mention-img fa fa-users fa-2x' />;
+        } else if (item.username === 'channel') {
+            username = 'channel';
+            description = 'Notifies everyone in the channel';
+            icon = <i className='mention-img fa fa-users fa-2x' />;
+        } else {
+            username = item.username;
+            description = Utils.getFullName(item);
+            icon = (
+                <img
+                    className='mention-img'
+                    src={'/api/v1/users/' + item.id + '/image?time=' + item.update_at + '&' + Utils.getSessionIndex()}
+                />
+            );
+        }
+
+        let className = 'mentions-name';
+        if (isSelection) {
+            className += ' mentions-focus';
+        }
+
+        return (
+            <div
+                className={className}
+                onClick={onClick}
+            >
+                <div className='pull-left'>
+                    {icon}
+                </div>
+                <div className='pull-left mention-align'>
+                    <span>
+                        {'@' + username}
+                    </span>
+                    <span className='mention-fullname'>
+                        {description}
+                    </span>
+                </div>
+            </div>
+        );
+    }
+}
+
+AtMentionSuggestion.propTypes = {
+    item: React.PropTypes.object.isRequired,
+    isSelection: React.PropTypes.bool,
+    onClick: React.PropTypes.func
+};
+
+export default class AtMentionProvider {
+    handlePretextChanged(suggestionId, pretext) {
+        const captured = (/@([a-z0-9\-\._]*)$/i).exec(pretext);
+        if (captured) {
+            const usernamePrefix = captured[1];
+
+            const users = UserStore.getProfiles();
+            let filtered = [];
+
+            for (const id of Object.keys(users)) {
+                const user = users[id];
+
+                if (user.username.startsWith(usernamePrefix)) {
+                    filtered.push(user);
+                }
+            }
+
+            // add dummy users to represent the @all and @channel special mentions
+            if ('all'.startsWith(usernamePrefix)) {
+                filtered.push({username: 'all'});
+            }
+
+            if ('channel'.startsWith(usernamePrefix)) {
+                filtered.push({username: 'channel'});
+            }
+
+            filtered = filtered.sort((a, b) => a.username.localeCompare(b.username));
+
+            const mentions = filtered.map((user) => '@' + user.username);
+
+            SuggestionStore.setMatchedPretext(suggestionId, captured[0]);
+            SuggestionStore.addSuggestions(suggestionId, mentions, filtered, AtMentionSuggestion);
+        }
+    }
+}
diff --git a/web/react/components/mention.jsx b/web/react/components/mention.jsx
deleted file mode 100644
index 44f6210e4..000000000
--- a/web/react/components/mention.jsx
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-import UserStore from '../stores/user_store.jsx';
-import * as Utils from '../utils/utils.jsx';
-
-export default class Mention extends React.Component {
-    constructor(props) {
-        super(props);
-
-        this.handleClick = this.handleClick.bind(this);
-
-        this.state = null;
-    }
-    handleClick() {
-        this.props.handleClick(this.props.username);
-    }
-    render() {
-        var icon;
-        var timestamp = UserStore.getCurrentUser().update_at;
-        if (this.props.id === 'allmention' || this.props.id === 'channelmention') {
-            icon = <span><i className='mention-img fa fa-users fa-2x'></i></span>;
-        } else if (this.props.id == null) {
-            icon = <span><i className='mention-img fa fa-users fa-2x'></i></span>;
-        } else {
-            icon = (
-                <span>
-                    <img
-                        className='mention-img'
-                        src={'/api/v1/users/' + this.props.id + '/image?time=' + timestamp + '&' + Utils.getSessionIndex()}
-                    />
-                </span>
-            );
-        }
-        return (
-            <div
-                className={'mentions-name ' + this.props.isFocused}
-                id={this.props.id + '_mentions'}
-                onClick={this.handleClick}
-                onMouseEnter={this.props.handleMouseEnter}
-            >
-                <div className='pull-left'>{icon}</div>
-                <div className='pull-left mention-align'><span>@{this.props.username}</span><span className='mention-fullname'>{this.props.secondary_text}</span></div>
-            </div>
-        );
-    }
-}
-
-Mention.defaultProps = {
-    username: '',
-    id: '',
-    isFocused: '',
-    secondary_text: ''
-};
-Mention.propTypes = {
-    handleClick: React.PropTypes.func.isRequired,
-    handleMouseEnter: React.PropTypes.func.isRequired,
-    username: React.PropTypes.string,
-    id: React.PropTypes.string,
-    isFocused: React.PropTypes.string,
-    secondary_text: React.PropTypes.string
-};
diff --git a/web/react/components/mention_list.jsx b/web/react/components/mention_list.jsx
deleted file mode 100644
index 297d5c719..000000000
--- a/web/react/components/mention_list.jsx
+++ /dev/null
@@ -1,276 +0,0 @@
-// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-import UserStore from '../stores/user_store.jsx';
-import SearchStore from '../stores/search_store.jsx';
-import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
-import Mention from './mention.jsx';
-
-import Constants from '../utils/constants.jsx';
-import * as Utils from '../utils/utils.jsx';
-var ActionTypes = Constants.ActionTypes;
-
-var MAX_HEIGHT_LIST = 292;
-var MAX_ITEMS_IN_LIST = 25;
-var ITEM_HEIGHT = 36;
-
-export default class MentionList extends React.Component {
-    constructor(props) {
-        super(props);
-
-        this.onListenerChange = this.onListenerChange.bind(this);
-        this.handleClick = this.handleClick.bind(this);
-        this.handleMouseEnter = this.handleMouseEnter.bind(this);
-        this.getSelection = this.getSelection.bind(this);
-        this.addCurrentMention = this.addCurrentMention.bind(this);
-        this.addFirstMention = this.addFirstMention.bind(this);
-        this.isEmpty = this.isEmpty.bind(this);
-        this.scrollToMention = this.scrollToMention.bind(this);
-        this.onScroll = this.onScroll.bind(this);
-        this.onMentionListKey = this.onMentionListKey.bind(this);
-        this.onClick = this.onClick.bind(this);
-
-        this.state = {excludeUsers: [], mentionText: '-1', selectedMention: 0, selectedUsername: ''};
-    }
-    onScroll() {
-        if ($('.mentions--top').length) {
-            $('#reply_mention_tab .mentions--top').css({bottom: $(window).height() - $('.post-right__scroll #reply_textbox').offset().top});
-        }
-    }
-    onMentionListKey(e) {
-        if (!this.isEmpty() && this.state.mentionText !== '-1' && (e.which === 13 || e.which === 9)) {
-            e.stopPropagation();
-            e.preventDefault();
-            this.addCurrentMention();
-        } else if (!this.isEmpty() && this.state.mentionText !== '-1' && (e.which === 38 || e.which === 40)) {
-            e.stopPropagation();
-            e.preventDefault();
-
-            if (e.which === 38) {
-                if (this.getSelection(this.state.selectedMention - 1)) {
-                    this.setState({selectedMention: this.state.selectedMention - 1, selectedUsername: this.refs['mention' + (this.state.selectedMention - 1)].props.username});
-                }
-            } else if (e.which === 40) {
-                if (this.getSelection(this.state.selectedMention + 1)) {
-                    this.setState({selectedMention: this.state.selectedMention + 1, selectedUsername: this.refs['mention' + (this.state.selectedMention + 1)].props.username});
-                }
-            }
-
-            this.scrollToMention(e.which);
-        }
-    }
-    onClick(e) {
-        if (!($('#' + this.props.id).is(e.target) || $('#' + this.props.id).has(e.target).length ||
-              ('mentionlist' in this.refs && $(ReactDOM.findDOMNode(this.refs.mentionlist)).has(e.target).length))) {
-            this.setState({mentionText: '-1'});
-        }
-    }
-    componentDidMount() {
-        SearchStore.addMentionDataChangeListener(this.onListenerChange);
-
-        $('.post-right__scroll').scroll(this.onScroll);
-
-        $('body').on('keydown.mentionlist', '#' + this.props.id, this.onMentionListKey);
-        $(document).click(this.onClick);
-    }
-    componentWillUnmount() {
-        SearchStore.removeMentionDataChangeListener(this.onListenerChange);
-        $('body').off('keydown.mentionlist', '#' + this.props.id);
-    }
-
-    /*
-     *  This component is poorly designed, nessesitating some state modification
-     *  in the componentDidUpdate function. This is generally discouraged as it
-     *  is a performance issue and breaks with good react design. This component
-     *  should be redesigned.
-     */
-    componentDidUpdate() {
-        if (this.state.mentionText !== '-1') {
-            if (this.state.selectedUsername !== '' && (!this.getSelection(this.state.selectedMention) || this.state.selectedUsername !== this.refs['mention' + this.state.selectedMention].props.username)) {
-                var tempSelectedMention = -1;
-                var foundMatch = false;
-                while (tempSelectedMention < this.state.selectedMention && this.getSelection(++tempSelectedMention)) {
-                    if (this.state.selectedUsername === this.refs['mention' + tempSelectedMention].props.username) {
-                        this.setState({selectedMention: tempSelectedMention}); //eslint-disable-line react/no-did-update-set-state
-                        foundMatch = true;
-                        break;
-                    }
-                }
-                if (this.getSelection(0) && !foundMatch) {
-                    this.setState({selectedMention: 0, selectedUsername: this.refs.mention0.props.username}); //eslint-disable-line react/no-did-update-set-state
-                }
-            }
-        } else if (this.state.selectedMention !== 0) {
-            this.setState({selectedMention: 0, selectedUsername: ''}); //eslint-disable-line react/no-did-update-set-state
-        }
-    }
-    onListenerChange(id, mentionText) {
-        if (id !== this.props.id) {
-            return;
-        }
-
-        var newState = this.state;
-        if (mentionText != null) {
-            newState.mentionText = mentionText;
-        }
-
-        this.setState(newState);
-    }
-    handleClick(name) {
-        AppDispatcher.handleViewAction({
-            type: ActionTypes.RECIEVED_ADD_MENTION,
-            id: this.props.id,
-            username: name
-        });
-
-        this.setState({mentionText: '-1'});
-    }
-    handleMouseEnter(listId) {
-        this.setState({selectedMention: listId, selectedUsername: this.refs['mention' + listId].props.username});
-    }
-    getSelection(listId) {
-        if (!this.refs['mention' + listId]) {
-            return false;
-        }
-        return true;
-    }
-    addCurrentMention() {
-        if (this.getSelection(this.state.selectedMention)) {
-            this.refs['mention' + this.state.selectedMention].handleClick();
-        } else {
-            this.addFirstMention();
-        }
-    }
-    addFirstMention() {
-        if (!this.refs.mention0) {
-            return;
-        }
-        this.refs.mention0.handleClick();
-    }
-    isEmpty() {
-        return (!this.refs.mention0);
-    }
-    scrollToMention(keyPressed) {
-        var direction;
-        if (keyPressed === 38) {
-            direction = 'up';
-        } else {
-            direction = 'down';
-        }
-        var scrollAmount = 0;
-
-        if (direction === 'up') {
-            scrollAmount = '-=' + ($('#' + this.refs['mention' + this.state.selectedMention].props.id + '_mentions').innerHeight() - 5);
-        } else if (direction === 'down') {
-            scrollAmount = '+=' + ($('#' + this.refs['mention' + this.state.selectedMention].props.id + '_mentions').innerHeight() - 5);
-        }
-
-        $('#mentionsbox').animate({
-            scrollTop: scrollAmount
-        }, 75);
-    }
-    render() {
-        var mentionText = this.state.mentionText;
-        if (mentionText === '-1') {
-            return null;
-        }
-
-        var profiles = UserStore.getActiveOnlyProfiles();
-        var users = [];
-        for (let id in profiles) {
-            if (profiles[id]) {
-                users.push(profiles[id]);
-            }
-        }
-
-        // var all = {};
-        // all.username = 'all';
-        // all.nickname = '';
-        // all.secondary_text = 'Notifies everyone in the team';
-        // all.id = 'allmention';
-        // users.push(all);
-
-        var channel = {};
-        channel.username = 'channel';
-        channel.nickname = '';
-        channel.secondary_text = 'Notifies everyone in the channel';
-        channel.id = 'channelmention';
-        users.push(channel);
-
-        users.sort(function sortByUsername(a, b) {
-            if (a.username < b.username) {
-                return -1;
-            }
-            if (a.username > b.username) {
-                return 1;
-            }
-            return 0;
-        });
-        var mentions = [];
-        var index = 0;
-
-        for (var i = 0; i < users.length && index < MAX_ITEMS_IN_LIST; i++) {
-            if ((users[i].first_name && users[i].first_name.lastIndexOf(mentionText, 0) === 0) ||
-                    (users[i].last_name && users[i].last_name.lastIndexOf(mentionText, 0) === 0) ||
-                    users[i].username.lastIndexOf(mentionText, 0) === 0) {
-                let isFocused = '';
-                if (this.state.selectedMention === index) {
-                    isFocused = 'mentions-focus';
-                }
-
-                if (!users[i].secondary_text) {
-                    users[i].secondary_text = Utils.getFullName(users[i]);
-                }
-
-                mentions[index] = (
-                    <Mention
-                        key={'mention_key_' + index}
-                        ref={'mention' + index}
-                        username={users[i].username}
-                        secondary_text={users[i].secondary_text}
-                        id={users[i].id}
-                        listId={index}
-                        isFocused={isFocused}
-                        handleMouseEnter={this.handleMouseEnter.bind(this, index)}
-                        handleClick={this.handleClick}
-                    />
-                );
-                index++;
-            }
-        }
-
-        var numMentions = mentions.length;
-
-        if (numMentions < 1) {
-            return null;
-        }
-
-        var $mentionTab = $('#' + this.props.id);
-        var maxHeight = Math.min(MAX_HEIGHT_LIST, $mentionTab.offset().top - 10);
-        var style = {
-            height: Math.min(maxHeight, (numMentions * ITEM_HEIGHT) + 4),
-            width: $mentionTab.parent().width(),
-            bottom: $(window).height() - $mentionTab.offset().top,
-            left: $mentionTab.offset().left
-        };
-
-        return (
-            <div
-                className='mentions--top'
-                style={style}
-            >
-                <div
-                    ref='mentionlist'
-                    className='mentions-box'
-                    id='mentionsbox'
-                >
-                    {mentions}
-                </div>
-            </div>
-        );
-    }
-}
-
-MentionList.propTypes = {
-    id: React.PropTypes.string
-};
diff --git a/web/react/components/search_bar.jsx b/web/react/components/search_bar.jsx
index 0ea5c451a..21a938ae1 100644
--- a/web/react/components/search_bar.jsx
+++ b/web/react/components/search_bar.jsx
@@ -7,6 +7,7 @@ import SearchStore from '../stores/search_store.jsx';
 import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
 import SuggestionBox from '../components/suggestion_box.jsx';
 import SearchChannelProvider from '../components/search_channel_provider.jsx';
+import SearchSuggestionList from '../components/search_suggestion_list.jsx';
 import SearchUserProvider from '../components/search_user_provider.jsx';
 import * as utils from '../utils/utils.jsx';
 import Constants from '../utils/constants.jsx';
@@ -164,6 +165,7 @@ export default class SearchBar extends React.Component {
                         onFocus={this.handleUserFocus}
                         onBlur={this.handleUserBlur}
                         onUserInput={this.handleUserInput}
+                        listComponent={SearchSuggestionList}
                         providers={this.suggestionProviders}
                     />
                     {isSearching}
diff --git a/web/react/components/search_suggestion_list.jsx b/web/react/components/search_suggestion_list.jsx
new file mode 100644
index 000000000..739b7199d
--- /dev/null
+++ b/web/react/components/search_suggestion_list.jsx
@@ -0,0 +1,86 @@
+// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import Constants from '../utils/constants.jsx';
+import SuggestionList from './suggestion_list.jsx';
+import * as Utils from '../utils/utils.jsx';
+
+export default class SearchSuggestionList extends SuggestionList {
+    componentDidUpdate(prevProps, prevState) {
+        if (this.state.items.length > 0 && prevState.items.length === 0) {
+            this.getContent().perfectScrollbar();
+        }
+    }
+
+    getContent() {
+        return $(ReactDOM.findDOMNode(this.refs.popover)).find('.popover-content');
+    }
+
+    renderChannelDivider(type) {
+        let text;
+        if (type === Constants.OPEN_CHANNEL) {
+            text = 'Public ' + Utils.getChannelTerm(type) + 's';
+        } else {
+            text = 'Private ' + Utils.getChannelTerm(type) + 's';
+        }
+
+        return (
+            <div
+                key={type + '-divider'}
+                className='search-autocomplete__divider'
+            >
+                <span>{text}</span>
+            </div>
+        );
+    }
+
+    render() {
+        if (this.state.items.length === 0) {
+            return null;
+        }
+
+        const items = [];
+        for (let i = 0; i < this.state.items.length; i++) {
+            const item = this.state.items[i];
+            const term = this.state.terms[i];
+            const isSelection = term === this.state.selection;
+
+            // ReactComponent names need to be upper case when used in JSX
+            const Component = this.state.components[i];
+
+            // temporary hack to add dividers between public and private channels in the search suggestion list
+            if (i === 0 || item.type !== this.state.items[i - 1].type) {
+                if (item.type === Constants.OPEN_CHANNEL) {
+                    items.push(this.renderChannelDivider(Constants.OPEN_CHANNEL));
+                } else if (item.type === Constants.PRIVATE_CHANNEL) {
+                    items.push(this.renderChannelDivider(Constants.PRIVATE_CHANNEL));
+                }
+            }
+
+            items.push(
+                <Component
+                    key={term}
+                    ref={term}
+                    item={item}
+                    isSelection={isSelection}
+                    onClick={this.handleItemClick.bind(this, term)}
+                />
+            );
+        }
+
+        return (
+            <ReactBootstrap.Popover
+                ref='popover'
+                id='search-autocomplete__popover'
+                className='search-help-popover autocomplete visible'
+                placement='bottom'
+            >
+                {items}
+            </ReactBootstrap.Popover>
+        );
+    }
+}
+
+SearchSuggestionList.propTypes = {
+    suggestionId: React.PropTypes.string.isRequired
+};
diff --git a/web/react/components/suggestion_box.jsx b/web/react/components/suggestion_box.jsx
index ddfcaf811..5510ba340 100644
--- a/web/react/components/suggestion_box.jsx
+++ b/web/react/components/suggestion_box.jsx
@@ -3,7 +3,6 @@
 
 import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
 import Constants from '../utils/constants.jsx';
-import SuggestionList from './suggestion_list.jsx';
 import SuggestionStore from '../stores/suggestion_store.jsx';
 import * as Utils from '../utils/utils.jsx';
 
@@ -45,6 +44,11 @@ export default class SuggestionBox extends React.Component {
         $(document).off('click', this.handleDocumentClick);
     }
 
+    getTextbox() {
+        // this is to support old code that looks at the input/textarea DOM nodes
+        return ReactDOM.findDOMNode(this.refs.textbox);
+    }
+
     handleDocumentClick(e) {
         if (!this.state.focused) {
             return;
@@ -143,26 +147,48 @@ export default class SuggestionBox extends React.Component {
     }
 
     render() {
+        const SuggestionList = this.props.listComponent;
+
         const newProps = Object.assign({}, this.props, {
             onFocus: this.handleFocus,
             onChange: this.handleChange,
             onKeyDown: this.handleKeyDown
         });
 
-        return (
-            <div>
+        let textbox = null;
+        if (this.props.type === 'input') {
+            textbox = (
                 <input
                     ref='textbox'
                     type='text'
                     {...newProps}
                 />
+            );
+        } else if (this.props.type === 'textarea') {
+            textbox = (
+                <textarea
+                    ref='textbox'
+                    {...newProps}
+                />
+            );
+        }
+
+        return (
+            <div>
+                {textbox}
                 <SuggestionList suggestionId={this.suggestionId} />
             </div>
         );
     }
 }
 
+SuggestionBox.defaultProps = {
+    type: 'input'
+};
+
 SuggestionBox.propTypes = {
+    listComponent: React.PropTypes.func.isRequired,
+    type: React.PropTypes.oneOf(['input', 'textarea']).isRequired,
     value: React.PropTypes.string.isRequired,
     onUserInput: React.PropTypes.func,
     providers: React.PropTypes.arrayOf(React.PropTypes.object),
diff --git a/web/react/components/suggestion_list.jsx b/web/react/components/suggestion_list.jsx
index 04d8f3e60..ec3888ebb 100644
--- a/web/react/components/suggestion_list.jsx
+++ b/web/react/components/suggestion_list.jsx
@@ -4,12 +4,13 @@
 import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
 import Constants from '../utils/constants.jsx';
 import SuggestionStore from '../stores/suggestion_store.jsx';
-import * as Utils from '../utils/utils.jsx';
 
 export default class SuggestionList extends React.Component {
     constructor(props) {
         super(props);
 
+        this.getContent = this.getContent.bind(this);
+
         this.handleItemClick = this.handleItemClick.bind(this);
         this.handleSuggestionsChanged = this.handleSuggestionsChanged.bind(this);
 
@@ -27,17 +28,14 @@ export default class SuggestionList extends React.Component {
         SuggestionStore.addSuggestionsChangedListener(this.props.suggestionId, this.handleSuggestionsChanged);
     }
 
-    componentDidUpdate(prevProps, prevState) {
-        if (this.state.items.length > 0 && prevState.items.length === 0) {
-            const content = $(ReactDOM.findDOMNode(this.refs.popover)).find('.popover-content');
-            content.perfectScrollbar();
-        }
-    }
-
     componentWillUnmount() {
         SuggestionStore.removeSuggestionsChangedListener(this.props.suggestionId, this.handleSuggestionsChanged);
     }
 
+    getContent() {
+        return $(ReactDOM.findDOMNode(this.refs.content));
+    }
+
     handleItemClick(term, e) {
         AppDispatcher.handleViewAction({
             type: Constants.ActionTypes.SUGGESTION_COMPLETE_WORD,
@@ -64,7 +62,7 @@ export default class SuggestionList extends React.Component {
     }
 
     scrollToItem(term) {
-        const content = $(ReactDOM.findDOMNode(this.refs.popover)).find('.popover-content');
+        const content = this.getContent();
         const visibleContentHeight = content[0].clientHeight;
         const actualContentHeight = content[0].scrollHeight;
 
@@ -75,7 +73,8 @@ export default class SuggestionList extends React.Component {
 
             const item = $(ReactDOM.findDOMNode(this.refs[term]));
             const itemTop = item[0].offsetTop - parseInt(item.css('margin-top'), 10);
-            const itemBottom = item[0].offsetTop + item.height() + parseInt(item.css('margin-bottom'), 10);
+            const itemBottomMargin = parseInt(item.css('margin-bottom'), 10) + parseInt(item.css('padding-bottom'), 10);
+            const itemBottom = item[0].offsetTop + item.height() + itemBottomMargin;
 
             if (itemTop - contentTopPadding < contentTop) {
                 // the item is off the top of the visible space
@@ -87,24 +86,6 @@ export default class SuggestionList extends React.Component {
         }
     }
 
-    renderChannelDivider(type) {
-        let text;
-        if (type === Constants.OPEN_CHANNEL) {
-            text = 'Public ' + Utils.getChannelTerm(type) + 's';
-        } else {
-            text = 'Private ' + Utils.getChannelTerm(type) + 's';
-        }
-
-        return (
-            <div
-                key={type + '-divider'}
-                className='search-autocomplete__divider'
-            >
-                <span>{text}</span>
-            </div>
-        );
-    }
-
     render() {
         if (this.state.items.length === 0) {
             return null;
@@ -119,15 +100,6 @@ export default class SuggestionList extends React.Component {
             // ReactComponent names need to be upper case when used in JSX
             const Component = this.state.components[i];
 
-            // temporary hack to add dividers between public and private channels in the search suggestion list
-            if (i === 0 || item.type !== this.state.items[i - 1].type) {
-                if (item.type === Constants.OPEN_CHANNEL) {
-                    items.push(this.renderChannelDivider(Constants.OPEN_CHANNEL));
-                } else if (item.type === Constants.PRIVATE_CHANNEL) {
-                    items.push(this.renderChannelDivider(Constants.PRIVATE_CHANNEL));
-                }
-            }
-
             items.push(
                 <Component
                     key={term}
@@ -140,18 +112,18 @@ export default class SuggestionList extends React.Component {
         }
 
         return (
-            <ReactBootstrap.Popover
-                ref='popover'
-                id='search-autocomplete__popover'
-                className='search-help-popover autocomplete visible'
-                placement='bottom'
-            >
-                {items}
-            </ReactBootstrap.Popover>
+            <div className='suggestion-list suggestion-list--top'>
+                <div
+                    ref='content'
+                    className='suggestion-content suggestion-content--top'
+                >
+                    {items}
+                </div>
+            </div>
         );
     }
 }
 
 SuggestionList.propTypes = {
     suggestionId: React.PropTypes.string.isRequired
-};
\ No newline at end of file
+};
diff --git a/web/react/components/textbox.jsx b/web/react/components/textbox.jsx
index 10b3c0069..fde8f64d3 100644
--- a/web/react/components/textbox.jsx
+++ b/web/react/components/textbox.jsx
@@ -1,15 +1,15 @@
 // Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
 // See License.txt for license information.
 
-import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
-import SearchStore from '../stores/search_store.jsx';
 import CommandList from './command_list.jsx';
+import AtMentionProvider from './at_mention_provider.jsx';
+import SuggestionList from './suggestion_list.jsx';
+import SuggestionBox from './suggestion_box.jsx';
 import ErrorStore from '../stores/error_store.jsx';
 
 import * as TextFormatting from '../utils/text_formatting.jsx';
 import * as Utils from '../utils/utils.jsx';
 import Constants from '../utils/constants.jsx';
-const ActionTypes = Constants.ActionTypes;
 const KeyCodes = Constants.KeyCodes;
 const PreReleaseFeatures = Constants.PRE_RELEASE_FEATURES;
 
@@ -18,32 +18,23 @@ export default class Textbox extends React.Component {
         super(props);
 
         this.getStateFromStores = this.getStateFromStores.bind(this);
-        this.onListenerChange = this.onListenerChange.bind(this);
         this.onRecievedError = this.onRecievedError.bind(this);
-        this.updateMentionTab = this.updateMentionTab.bind(this);
-        this.handleChange = this.handleChange.bind(this);
         this.handleKeyPress = this.handleKeyPress.bind(this);
         this.handleKeyDown = this.handleKeyDown.bind(this);
         this.handleBackspace = this.handleBackspace.bind(this);
-        this.checkForNewMention = this.checkForNewMention.bind(this);
-        this.addMention = this.addMention.bind(this);
         this.addCommand = this.addCommand.bind(this);
         this.resize = this.resize.bind(this);
         this.handleFocus = this.handleFocus.bind(this);
         this.handleBlur = this.handleBlur.bind(this);
-        this.handlePaste = this.handlePaste.bind(this);
         this.showPreview = this.showPreview.bind(this);
 
         this.state = {
-            mentionText: '-1',
-            mentions: [],
             connection: ''
         };
 
         this.caret = -1;
-        this.addedMention = false;
-        this.doProcessMentions = false;
-        this.mentions = [];
+
+        this.suggestionProviders = [new AtMentionProvider()];
     }
 
     getStateFromStores() {
@@ -57,24 +48,15 @@ export default class Textbox extends React.Component {
     }
 
     componentDidMount() {
-        SearchStore.addAddMentionListener(this.onListenerChange);
         ErrorStore.addChangeListener(this.onRecievedError);
 
         this.resize();
-        this.updateMentionTab(null);
     }
 
     componentWillUnmount() {
-        SearchStore.removeAddMentionListener(this.onListenerChange);
         ErrorStore.removeChangeListener(this.onRecievedError);
     }
 
-    onListenerChange(id, username) {
-        if (id === this.props.id) {
-            this.addMention(username);
-        }
-    }
-
     onRecievedError() {
         const errorState = ErrorStore.getLastError();
 
@@ -87,72 +69,29 @@ export default class Textbox extends React.Component {
 
     componentDidUpdate() {
         if (this.caret >= 0) {
-            Utils.setCaretPosition(ReactDOM.findDOMNode(this.refs.message), this.caret);
+            Utils.setCaretPosition(this.refs.message.getTextbox(), this.caret);
             this.caret = -1;
         }
-        if (this.doProcessMentions) {
-            this.updateMentionTab(null);
-            this.doProcessMentions = false;
-        }
         this.resize();
     }
 
     componentWillReceiveProps(nextProps) {
-        if (!this.addedMention) {
-            this.checkForNewMention(nextProps.messageText);
-        }
-        const text = ReactDOM.findDOMNode(this.refs.message).value;
-        if (nextProps.channelId !== this.props.channelId || nextProps.messageText !== text) {
-            this.doProcessMentions = true;
-        }
-        this.addedMention = false;
         this.refs.commands.getSuggestedCommands(nextProps.messageText);
     }
 
-    updateMentionTab(mentionText) {
-        // using setTimeout so dispatch isn't called during an in progress dispatch
-        setTimeout(() => {
-            AppDispatcher.handleViewAction({
-                type: ActionTypes.RECIEVED_MENTION_DATA,
-                id: this.props.id,
-                mention_text: mentionText
-            });
-        }, 1);
-    }
-
-    handleChange() {
-        const text = ReactDOM.findDOMNode(this.refs.message).value;
-        this.props.onUserInput(text);
-    }
-
     handleKeyPress(e) {
-        const text = ReactDOM.findDOMNode(this.refs.message).value;
+        const text = this.refs.message.getTextbox().value;
 
-        if (!this.refs.commands.isEmpty() && text.indexOf('/') === 0 && e.which === 13) {
+        if (!this.refs.commands.isEmpty() && text.indexOf('/') === 0 && e.which === KeyCodes.ENTER) {
             this.refs.commands.addFirstCommand();
             e.preventDefault();
             return;
         }
 
-        if (!this.doProcessMentions) {
-            const caret = Utils.getCaretPosition(ReactDOM.findDOMNode(this.refs.message));
-            const preText = text.substring(0, caret);
-            const lastSpace = preText.lastIndexOf(' ');
-            const lastAt = preText.lastIndexOf('@');
-
-            if (caret > lastAt && lastSpace < lastAt) {
-                this.doProcessMentions = true;
-            }
-        }
-
         this.props.onKeyPress(e);
     }
 
     handleKeyDown(e) {
-        if (Utils.getSelectedText(ReactDOM.findDOMNode(this.refs.message)) !== '') {
-            this.doProcessMentions = true;
-        }
-
         if (e.keyCode === KeyCodes.BACKSPACE) {
             this.handleBackspace(e);
         } else if (this.props.onKeyDown) {
@@ -161,83 +100,18 @@ export default class Textbox extends React.Component {
     }
 
     handleBackspace() {
-        const text = ReactDOM.findDOMNode(this.refs.message).value;
+        const text = this.refs.message.getTextbox().value;
         if (text.indexOf('/') === 0) {
             this.refs.commands.getSuggestedCommands(text.substring(0, text.length - 1));
         }
-
-        if (this.doProcessMentions) {
-            return;
-        }
-
-        const caret = Utils.getCaretPosition(ReactDOM.findDOMNode(this.refs.message));
-        const preText = text.substring(0, caret);
-        const lastSpace = preText.lastIndexOf(' ');
-        const lastAt = preText.lastIndexOf('@');
-
-        if (caret > lastAt && (lastSpace > lastAt || lastSpace === -1)) {
-            this.doProcessMentions = true;
-        }
-    }
-
-    checkForNewMention(text) {
-        const caret = Utils.getCaretPosition(ReactDOM.findDOMNode(this.refs.message));
-
-        const preText = text.substring(0, caret);
-
-        const atIndex = preText.lastIndexOf('@');
-
-        // The @ character not typed, so nothing to do.
-        if (atIndex === -1) {
-            this.updateMentionTab('-1');
-            return;
-        }
-
-        const lastCharSpace = preText.lastIndexOf(String.fromCharCode(160));
-        const lastSpace = preText.lastIndexOf(' ');
-
-        // If there is a space after the last @, nothing to do.
-        if (lastSpace > atIndex || lastCharSpace > atIndex) {
-            this.updateMentionTab('-1');
-            return;
-        }
-
-        // Get the name typed so far.
-        const name = preText.substring(atIndex + 1, preText.length).toLowerCase();
-        this.updateMentionTab(name);
-    }
-
-    addMention(name) {
-        const caret = Utils.getCaretPosition(ReactDOM.findDOMNode(this.refs.message));
-
-        const text = this.props.messageText;
-
-        const preText = text.substring(0, caret);
-
-        const atIndex = preText.lastIndexOf('@');
-
-        // The @ character not typed, so nothing to do.
-        if (atIndex === -1) {
-            return;
-        }
-
-        const prefix = text.substring(0, atIndex);
-        const suffix = text.substring(caret, text.length);
-        this.caret = prefix.length + name.length + 2;
-        this.addedMention = true;
-        this.doProcessMentions = true;
-
-        this.props.onUserInput(`${prefix}@${name} ${suffix}`);
     }
 
     addCommand(cmd) {
-        const elm = ReactDOM.findDOMNode(this.refs.message);
-        elm.value = cmd;
-        this.handleChange();
+        this.props.onUserInput(cmd);
     }
 
     resize() {
-        const e = ReactDOM.findDOMNode(this.refs.message);
+        const e = this.refs.message.getTextbox();
         const w = ReactDOM.findDOMNode(this.refs.wrapper);
 
         const prevHeight = $(e).height();
@@ -272,23 +146,19 @@ export default class Textbox extends React.Component {
     }
 
     handleFocus() {
-        const elm = ReactDOM.findDOMNode(this.refs.message);
+        const elm = this.refs.message.getTextbox();
         if (elm.title === elm.value) {
             elm.value = '';
         }
     }
 
     handleBlur() {
-        const elm = ReactDOM.findDOMNode(this.refs.message);
+        const elm = this.refs.message.getTextbox();
         if (elm.value === '') {
             elm.value = elm.title;
         }
     }
 
-    handlePaste() {
-        this.doProcessMentions = true;
-    }
-
     showPreview(e) {
         e.preventDefault();
         e.target.blur();
@@ -328,10 +198,11 @@ export default class Textbox extends React.Component {
                     addCommand={this.addCommand}
                     channelId={this.props.channelId}
                 />
-                <textarea
+                <SuggestionBox
                     id={this.props.id}
                     ref='message'
                     className={`form-control custom-textarea ${this.state.connection}`}
+                    type='textarea'
                     spellCheck='true'
                     autoComplete='off'
                     autoCorrect='off'
@@ -339,14 +210,15 @@ export default class Textbox extends React.Component {
                     maxLength={Constants.MAX_POST_LEN}
                     placeholder={this.props.createMessage}
                     value={this.props.messageText}
-                    onInput={this.handleChange}
-                    onChange={this.handleChange}
+                    onUserInput={this.props.onUserInput}
                     onKeyPress={this.handleKeyPress}
                     onKeyDown={this.handleKeyDown}
                     onFocus={this.handleFocus}
                     onBlur={this.handleBlur}
                     onPaste={this.handlePaste}
                     style={{visibility: this.state.preview ? 'hidden' : 'visible'}}
+                    listComponent={SuggestionList}
+                    providers={this.suggestionProviders}
                 />
                 <div
                     ref='preview'