app/components/Comment.jsx
import React, { Component } from 'react';
import { connect } from 'react-redux';
import { NavLink } from 'react-router-dom';
import { createAction as action } from 'redux-actions';
import moment from 'moment';
import Linkify from 'react-linkify';
// - Import material UI libraries
import Paper from 'material-ui/Paper';
import FlatButton from 'material-ui/FlatButton';
import { grey400 } from 'material-ui/styles/colors';
import IconButton from 'material-ui/IconButton';
import MoreVertIcon from 'material-ui/svg-icons/navigation/more-vert';
import IconMenu from 'material-ui/IconMenu';
import MenuItem from 'material-ui/MenuItem';
// - Import app components
import UserAvatar from 'UserAvatar';
// - Import action types
import * as types from 'actionTypes';
// - Import actions
import * as commentActions from 'commentActions';
import * as userActions from 'userActions';
export class Comment extends Component {
/**
* Component constructor
* @param {object} props is an object properties of component
*/
constructor(props) {
super(props);
this.textareaRef = (i) => { this.inputText = i };
this.divCommentRef = (i) => { this.divComment = i };
this.state = {
// Comment text
text: this.props.comment.text,
// Comment text to match edit with new comment that is edited
initialText: this.props.comment.text,
// If comment text dosn't take any change it will be true
editDisabled: true,
// If it's true the post owner is the logged in user which this post be long to the comment
isPostOwner: ''
};
}
/**
* Handle show edit comment
* @param {event} evt is an event passed by clicking on edit button
*/
handleEditComment = (evt) => {
this.inputText.style.height = this.divComment.clientHeight + 'px';
this.props.openEditor();
}
/**
* Handle cancel edit
* @param {event} evt is an event passed by clicking on cancel button
*/
handleCancelEdit = (evt) => {
this.setState({ text: this.state.initialText });
this.props.closeEditor();
}
/**
* Handle edit comment
* @param {event} evt is an event passed by clicking on post button
*/
handleUpdateComment = (evt) => {
this.props.update(this.props.comment.id, this.props.comment.postId, this.state.text);
this.setState({ initialText: this.state.text });
}
/**
* When comment text changed
* @param {event} evt is an event passed by change comment text callback funciton
* @param {string} data is the comment text which user writes
*/
handleOnChange = (evt) => {
const data = evt.target.value;
this.inputText.style.height = evt.target.scrollHeight + 'px';
if (data.length === 0 || data.trim() === '' || data.trim() === this.state.initialText) {
this.setState({
text: data,
editDisabled: true
});
}
else {
this.setState({
text: data,
editDisabled: false
});
}
}
/**
* Delete a comment
* @param {event} evt an event passed by click on delete comment
* @param {string} id comment identifire
* @param {string} postId post identifier which comment belong to
*/
handleDelete = (evt, id, postId) => {
this.props.delete(id, postId);
}
componentWillMount() {
const { userId } = this.props.comment;
if (!this.props.isCommentOwner && !this.props.info[userId]) {
this.props.getUserInfo();
}
}
/**
* Reneder component DOM
* @return {react element} return the DOM which rendered by component
*/
render() {
/**
* DOM styles
*
* @memberof Comment
*/
const styles = {
comment: {
marginBottom: '12px'
},
iconButton: {
width: 16,
height: 16
},
author: {
fontSize: "13px",
paddingRight: "10px",
fontWeight: 400,
color: "rgba(0,0,0,0.87)",
textOverflow: "ellipsis",
overflow: "hidden"
},
commentBody: {
fontSize: "13px",
lineHeight: "20px",
color: "rgba(0,0,0,0.87)",
fontWeight: 300,
height: "",
display: "block"
}
}
// Comment object from props
const { comment } = this.props;
const iconButtonElement = (
<IconButton style={styles.iconButton} iconStyle={styles.iconButton} touch={true}>
<MoreVertIcon color={grey400} viewBox='9 0 24 24' />
</IconButton>
);
const RightIconMenu = () => (
<IconMenu iconButtonElement={iconButtonElement} style={{ display: "block", position: "absolute", top: "0px", right: "4px", transform: 'rotate(90deg)' }}>
<MenuItem style={{ fontSize: "14px" }}>Reply</MenuItem>
{this.props.isCommentOwner ? (<MenuItem style={{ fontSize: "14px" }} onClick={this.handleEditComment}>Edit</MenuItem>) : ''}
{(this.props.isCommentOwner || this.props.isPostOwner) ? (<MenuItem style={{ fontSize: "14px" }} onClick={(evt) => this.handleDelete(evt, comment.id, comment.postId)}>Delete</MenuItem>) : ''}
</IconMenu>
);
const Author = () => (
<div style={{ marginTop: "-11px" }}>
<span style={styles.author}>{comment.userDisplayName}</span><span style={{fontSize: "10px", color: '#757575'}}>{moment.unix(comment.creationDate).fromNow()}</span>
</div>
);
const commentBody = (
<p style={styles.commentBody}>{comment.text}</p>
);
const { userId } = comment;
return (
<div className="animate-top" style={styles.comment} key={comment.id}>
<Paper zDepth={0} className="animate2-top10" style={{ position: "relative", padding: "", display: (!this.state.display ? "block" : "none") }}>
<div style={{ marginLeft: "0px", padding: "16px 56px 0px 72px", position: "relative" }}>
<NavLink to={`/${userId}`}><UserAvatar fullName={this.props.fullName} fileName={this.props.avatar} style={{ display: "inline-flex", alignItems: "center", justifyContent: "center", position: "absolute", top: "8px", left: "16px" }} size={36} /></NavLink>
<NavLink to={`/${userId}`}> <Author /></NavLink>
{(!this.props.isCommentOwner && !this.props.isPostOwner && this.props.disableComments) ? '' : (<RightIconMenu />)}
<div style={{ outline: "none", flex: "auto", flexGrow: 1 }}>
<textarea ref={this.textareaRef} className="animate2-top10" style={{ fontWeight: 100, fontSize: "14px", border: "none", width: "100%", outline: "none", resize: "none", display: (this.props.comment.editorStatus ? 'block' : 'none') }} onChange={this.handleOnChange} value={this.state.text}></textarea>
<Linkify properties={{ target: '_blank', style: { color: 'blue' } }}>
<div ref={this.divCommentRef} className="animate2-top10" style={{ fontWeight: 100, fontSize: "14px", height: "100%", border: "none", width: "100%", outline: "none", resize: "none", display: (!this.props.comment.editorStatus ? 'block' : 'none') }}>{this.state.text}</div>
</Linkify>
</div>
</div>
<div style={{ display: (this.props.comment.editorStatus ? "flex" : "none"), flexDirection: "row-reverse" }}>
<FlatButton primary={true} disabled={this.state.editDisabled} label="Update" style={{ float: "right", clear: "both", zIndex: 5, margin: "0px 5px 5px 0px", fontWeight: 400 }} onClick={this.handleUpdateComment} />
<FlatButton primary={true} label="Cancel" style={{ float: "right", clear: "both", zIndex: 5, margin: "0px 5px 5px 0px", fontWeight: 400 }} onClick={this.handleCancelEdit} />
</div>
</Paper>
</div>
);
}
}
/**
* Map dispatch to props
* @param {func} dispatch is the function to dispatch action to reducers
* @param {object} ownProps is the props belong to component
* @return {object} props of component
*/
const mapDispatchToProps = (dispatch, ownProps) => {
return {
delete: (id, postId) => dispatch(commentActions.dbDeleteComment(id, postId)),
update: (id, postId, comment) => dispatch(commentActions.dbUpdateComment(id, postId, comment)),
openEditor: () => dispatch(commentActions.openCommentEditor({ id: ownProps.comment.id, postId: ownProps.comment.postId })),
closeEditor: () => dispatch(commentActions.closeCommentEditor({ id: ownProps.comment.id, postId: ownProps.comment.postId })),
getUserInfo: () => dispatch(userActions.dbGetUserInfoByUserId(ownProps.comment.userId))
}
}
/**
* Map state to props
* @param {object} state is the obeject from redux store
* @param {object} ownProps is the props belong to component
* @return {object} props of component
*/
const mapStateToProps = (state, ownProps) => {
const { uid } = state.authorize;
const avatar = state.user.info && state.user.info[ownProps.comment.userId] ? state.user.info[ownProps.comment.userId].avatar || '' : '';
const fullName = state.user.info && state.user.info[ownProps.comment.userId] ? state.user.info[ownProps.comment.userId].fullName || '' : '';
return {
uid: uid,
isCommentOwner: (uid === ownProps.comment.userId),
info: state.user.info,
avatar,
fullName
};
}
// - Connect component to redux store
export default connect(mapStateToProps, mapDispatchToProps)(Comment)
