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// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
import React from 'react';
import {FormattedMessage} from 'react-intl';
import Constants from 'utils/constants.jsx';
import * as PostUtils from 'utils/post_utils.jsx';
import * as TextFormatting from 'utils/text_formatting.jsx';
import * as Utils from 'utils/utils.jsx';
import {getSiteURL} from 'utils/url.jsx';
import {renderSystemMessage} from './system_message_helpers.jsx';
export default class PostMessageView extends React.Component {
static propTypes = {
options: React.PropTypes.object.isRequired,
post: React.PropTypes.object.isRequired,
emojis: React.PropTypes.object.isRequired,
enableFormatting: React.PropTypes.bool.isRequired,
mentionKeys: React.PropTypes.arrayOf(React.PropTypes.string).isRequired,
usernameMap: React.PropTypes.object.isRequired,
channelNamesMap: React.PropTypes.object.isRequired,
team: React.PropTypes.object.isRequired,
lastPostCount: React.PropTypes.number
};
shouldComponentUpdate(nextProps) {
if (!Utils.areObjectsEqual(nextProps.options, this.props.options)) {
return true;
}
if (nextProps.post.message !== this.props.post.message) {
return true;
}
if (nextProps.post.state !== this.props.post.state) {
return true;
}
if (nextProps.post.type !== this.props.post.type) {
return true;
}
// emojis are immutable
if (nextProps.emojis !== this.props.emojis) {
return true;
}
if (nextProps.enableFormatting !== this.props.enableFormatting) {
return true;
}
if (!Utils.areObjectsEqual(nextProps.mentionKeys, this.props.mentionKeys)) {
return true;
}
if (nextProps.lastPostCount !== this.props.lastPostCount) {
return true;
}
// Don't check if props.usernameMap changes since it is very large and inefficient to do so.
// This mimics previous behaviour, but could be changed if we decide it's worth it.
// The same choice (and reasoning) is also applied to the this.props.channelNamesMap.
return false;
}
renderDeletedPost() {
return (
<p>
<FormattedMessage
id='post_body.deleted'
defaultMessage='(message deleted)'
/>
</p>
);
}
renderEditedIndicator() {
if (!PostUtils.isEdited(this.props.post)) {
return null;
}
return (
<span className='post-edited-indicator'>
<FormattedMessage
id='post_message_view.edited'
defaultMessage='(edited)'
/>
</span>
);
}
render() {
if (this.props.post.state === Constants.POST_DELETED) {
return this.renderDeletedPost();
}
if (!this.props.enableFormatting) {
return <span>{this.props.post.message}</span>;
}
const options = Object.assign({}, this.props.options, {
emojis: this.props.emojis,
siteURL: getSiteURL(),
mentionKeys: this.props.mentionKeys,
usernameMap: this.props.usernameMap,
channelNamesMap: this.props.channelNamesMap,
team: this.props.team
});
const renderedSystemMessage = renderSystemMessage(this.props.post, options);
if (renderedSystemMessage) {
return <div>{renderedSystemMessage}</div>;
}
let postId = null;
if (this.props.lastPostCount >= 0) {
postId = Utils.createSafeId('lastPostMessageText' + this.props.lastPostCount);
}
return (
<div>
<span
id={postId}
className='post-message__text'
onClick={Utils.handleFormattedTextClick}
dangerouslySetInnerHTML={{__html: TextFormatting.formatText(this.props.post.message, options)}}
/>
{this.renderEditedIndicator()}
</div>
);
}
}
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