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Diffstat (limited to 'webapp/components/suggestion/channel_mention_provider.jsx')
-rw-r--r-- | webapp/components/suggestion/channel_mention_provider.jsx | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/webapp/components/suggestion/channel_mention_provider.jsx b/webapp/components/suggestion/channel_mention_provider.jsx new file mode 100644 index 000000000..9e8a7b47b --- /dev/null +++ b/webapp/components/suggestion/channel_mention_provider.jsx @@ -0,0 +1,130 @@ +// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved. +// See License.txt for license information. + +import React from 'react'; + +import SuggestionStore from 'stores/suggestion_store.jsx'; +import ChannelStore from 'stores/channel_store.jsx'; +import Constants from 'utils/constants.jsx'; + +import Suggestion from './suggestion.jsx'; + +const MaxChannelSuggestions = 40; + +class ChannelMentionSuggestion extends Suggestion { + render() { + const isSelection = this.props.isSelection; + const item = this.props.item; + + const channelName = item.channel.display_name; + let purpose = item.channel.purpose; + + let className = 'mentions__name'; + if (isSelection) { + className += ' suggestion--selected'; + } + + const description = '(!' + item.channel.name + ')'; + + return ( + <div + className={className} + onClick={this.handleClick} + > + <div className='mention__align'> + <span> + {channelName} + </span> + <span className='mention__channelname'> + {' '} + {description} + </span> + </div> + <div className='mention__purpose'> + {purpose} + </div> + </div> + ); + } +} + +function filterChannelsByPrefix(channels, prefix, limit) { + const filtered = []; + + for (const id of Object.keys(channels)) { + if (filtered.length >= limit) { + break; + } + + const channel = channels[id]; + + if (channel.delete_at > 0) { + continue; + } + + if (channel.display_name.toLowerCase().startsWith(prefix) || channel.name.startsWith(prefix)) { + filtered.push(channel); + } + } + + return filtered; +} + +export default class ChannelMentionProvider { + handlePretextChanged(suggestionId, pretext) { + const captured = (/(^|\s)(!([^!]*))$/i).exec(pretext.toLowerCase()); + if (captured) { + const prefix = captured[3]; + + const channels = ChannelStore.getAll(); + const moreChannels = ChannelStore.getMoreAll(); + + // Remove private channels from the list. + const publicChannels = channels.filter((channel) => { + return channel.type === 'O'; + }); + + // Filter channels by prefix. + const filteredChannels = filterChannelsByPrefix( + publicChannels, prefix, MaxChannelSuggestions); + const filteredMoreChannels = filterChannelsByPrefix( + moreChannels, prefix, MaxChannelSuggestions - filteredChannels.length); + + // Sort channels by display name. + [filteredChannels, filteredMoreChannels].forEach((items) => { + items.sort((a, b) => { + const aPrefix = a.display_name.startsWith(prefix); + const bPrefix = b.display_name.startsWith(prefix); + + if (aPrefix === bPrefix) { + return a.display_name.localeCompare(b.display_name); + } else if (aPrefix) { + return -1; + } + + return 1; + }); + }); + + // Wrap channels in an outer object to avoid overwriting the 'type' property. + const wrappedChannels = filteredChannels.map((item) => { + return { + type: Constants.MENTION_CHANNELS, + channel: item + }; + }); + const wrappedMoreChannels = filteredMoreChannels.map((item) => { + return { + type: Constants.MENTION_MORE_CHANNELS, + channel: item + }; + }); + + const wrapped = wrappedChannels.concat(wrappedMoreChannels); + + const mentions = wrapped.map((item) => '!' + item.channel.name); + + SuggestionStore.addSuggestions(suggestionId, mentions, wrapped, ChannelMentionSuggestion, captured[2]); + } + } +} |