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import PropTypes from 'prop-types';
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
import React, {Component} from 'react';
import {FormattedMessage} from 'react-intl';
import exif2css from 'exif2css';
import FormError from 'components/form_error.jsx';
import loadingGif from 'images/load.gif';
import Constants from 'utils/constants.jsx';
export default class SettingPicture extends Component {
static propTypes = {
clientError: PropTypes.string,
serverError: PropTypes.string,
src: PropTypes.string,
file: PropTypes.object,
loadingPicture: PropTypes.bool,
submitActive: PropTypes.bool,
submit: PropTypes.func,
title: PropTypes.string,
onFileChange: PropTypes.func,
updateSection: PropTypes.func
};
constructor(props) {
super(props);
this.state = {
image: null
};
}
componentWillReceiveProps(nextProps) {
if (nextProps.file !== this.props.file) {
this.setState({image: null});
this.setPicture(nextProps.file);
}
}
componentWillUnmount() {
if (this.previewBlob) {
URL.revokeObjectURL(this.previewBlob);
}
}
setPicture = (file) => {
if (file) {
this.previewBlob = URL.createObjectURL(file);
var reader = new FileReader();
reader.onload = (e) => {
const orientation = this.getExifOrientation(e.target.result);
const orientationStyles = this.getOrientationStyles(orientation);
this.setState({
image: this.previewBlob,
orientationStyles
});
};
reader.readAsArrayBuffer(file);
}
}
// based on https://stackoverflow.com/questions/7584794/accessing-jpeg-exif-rotation-data-in-javascript-on-the-client-side/32490603#32490603
getExifOrientation(data) {
var view = new DataView(data);
if (view.getUint16(0, false) !== 0xFFD8) {
return -2;
}
var length = view.byteLength;
var offset = 2;
while (offset < length) {
var marker = view.getUint16(offset, false);
offset += 2;
if (marker === 0xFFE1) {
if (view.getUint32(offset += 2, false) !== 0x45786966) {
return -1;
}
var little = view.getUint16(offset += 6, false) === 0x4949;
offset += view.getUint32(offset + 4, little);
var tags = view.getUint16(offset, little);
offset += 2;
for (var i = 0; i < tags; i++) {
if (view.getUint16(offset + (i * 12), little) === 0x0112) {
return view.getUint16(offset + (i * 12) + 8, little);
}
}
} else if ((marker & 0xFF00) === 0xFF00) {
offset += view.getUint16(offset, false);
} else {
break;
}
}
return -1;
}
getOrientationStyles(orientation) {
const {
transform,
'transform-origin': transformOrigin
} = exif2css(orientation);
return {transform, transformOrigin};
}
render() {
let img;
if (this.props.file) {
const imageStyles = {
backgroundImage: 'url(' + this.state.image + ')',
...this.state.orientationStyles
};
img = (
<div
className='profile-img-preview'
style={imageStyles}
/>
);
} else {
img = (
<img
ref='image'
className='profile-img rounded'
src={this.props.src}
/>
);
}
let confirmButton;
if (this.props.loadingPicture) {
confirmButton = (
<img
className='spinner'
src={loadingGif}
/>
);
} else {
let confirmButtonClass = 'btn btn-sm';
if (this.props.submitActive) {
confirmButtonClass += ' btn-primary';
} else {
confirmButtonClass += ' btn-inactive disabled';
}
confirmButton = (
<a
className={confirmButtonClass}
onClick={this.props.submit}
>
<FormattedMessage
id='setting_picture.save'
defaultMessage='Save'
/>
</a>
);
}
return (
<ul className='section-max form-horizontal'>
<li className='col-xs-12 section-title'>{this.props.title}</li>
<li className='col-xs-offset-3 col-xs-8'>
<ul className='setting-list'>
<li className='setting-list-item'>
{img}
</li>
<li className='setting-list-item padding-top x2'>
<FormattedMessage
id='setting_picture.help'
defaultMessage='Upload a profile picture in BMP, JPG, JPEG or PNG format, at least {width}px in width and {height}px height.'
values={{
width: Constants.PROFILE_WIDTH,
height: Constants.PROFILE_WIDTH
}}
/>
</li>
<li className='setting-list-item'>
<hr/>
<FormError
errors={[this.props.clientError, this.props.serverError]}
type={'modal'}
/>
<span className='btn btn-sm btn-primary btn-file sel-btn'>
<FormattedMessage
id='setting_picture.select'
defaultMessage='Select'
/>
<input
ref='input'
accept='.jpg,.png,.bmp'
type='file'
onChange={this.props.onFileChange}
/>
</span>
{confirmButton}
<a
className='btn btn-sm theme'
href='#'
onClick={this.props.updateSection}
>
<FormattedMessage
id='setting_picture.cancel'
defaultMessage='Cancel'
/>
</a>
</li>
</ul>
</li>
</ul>
);
}
}
|
