David Yip
7 years ago
committed by
GitHub
commit
b97682111e
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import React from 'react';
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import IconButton from '../../../components/icon_button';
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import PropTypes from 'prop-types';
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import { defineMessages, injectIntl } from 'react-intl';
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import ImmutablePureComponent from 'react-immutable-pure-component';
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const messages = defineMessages({
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doodle: { id: 'doodle_button.label', defaultMessage: 'Add a drawing' },
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});
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const iconStyle = {
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height: null,
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lineHeight: '27px',
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};
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@injectIntl
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export default class UploadButton extends ImmutablePureComponent {
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static propTypes = {
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disabled: PropTypes.bool,
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onOpenCanvas: PropTypes.func.isRequired,
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style: PropTypes.object,
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intl: PropTypes.object.isRequired,
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};
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handleClick = () => {
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this.props.onOpenCanvas();
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}
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render () {
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const { intl, disabled } = this.props;
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return (
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<div className='compose-form__upload-button'>
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<IconButton icon='pencil' title={intl.formatMessage(messages.doodle)} disabled={disabled} onClick={this.handleClick} className='compose-form__upload-button-icon' size={18} inverted style={iconStyle} />
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</div>
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);
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}
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}
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@ -0,0 +1,33 @@
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import { connect } from 'react-redux';
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import DoodleButton from '../components/doodle_button';
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import { openModal } from '../../../actions/modal';
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import { uploadCompose } from '../../../actions/compose';
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const mapStateToProps = state => ({
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disabled: state.getIn(['compose', 'is_uploading']) || (state.getIn(['compose', 'media_attachments']).size > 3 || state.getIn(['compose', 'media_attachments']).some(m => m.get('type') === 'video')),
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});
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//https://stackoverflow.com/questions/35940290/how-to-convert-base64-string-to-javascript-file-object-like-as-from-file-input-f
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function dataURLtoFile(dataurl, filename) {
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let arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],
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bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
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while(n--){
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u8arr[n] = bstr.charCodeAt(n);
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}
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return new File([u8arr], filename, { type: mime });
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}
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const mapDispatchToProps = dispatch => ({
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onOpenCanvas () {
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dispatch(openModal('DOODLE', {
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status,
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onDoodleSubmit: (b64data) => {
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dispatch(uploadCompose([dataURLtoFile(b64data, 'doodle.png')]));
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},
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}));
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},
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});
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export default connect(mapStateToProps, mapDispatchToProps)(DoodleButton);
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@ -0,0 +1,68 @@
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import React from 'react';
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import PropTypes from 'prop-types';
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import Button from '../../../components/button';
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import ImmutablePureComponent from 'react-immutable-pure-component';
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import Atrament from 'atrament'; // the doodling library
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export default class DoodleModal extends ImmutablePureComponent {
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static contextTypes = {
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router: PropTypes.object,
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};
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static propTypes = {
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onDoodleSubmit: PropTypes.func.isRequired, // gets the base64 as argument
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onClose: PropTypes.func.isRequired,
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};
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handleKeyUp = (e) => {
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if (e.key === 'Delete' || e.key === 'Backspace') {
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this.clearScreen();
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}
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}
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clearScreen () {
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this.sketcher.context.fillStyle = 'white';
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this.sketcher.context.fillRect(0, 0, this.canvas.width, this.canvas.height);
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}
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componentDidMount () {
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window.addEventListener('keyup', this.handleKeyUp, false);
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}
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handleDone = () => {
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this.props.onDoodleSubmit(this.sketcher.toImage());
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this.sketcher.destroy();
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this.props.onClose();
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}
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setCanvasRef = (elem) => {
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this.canvas = elem;
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if (elem) {
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this.sketcher = new Atrament(elem, 500, 500, 'black');
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this.clearScreen();
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// .smoothing looks good with mouse but works really poorly with a tablet
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this.sketcher.smoothing = false;
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// There's a bunch of options we should add UI controls for later
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// ref: https://github.com/jakubfiala/atrament.js
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}
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}
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render () {
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return (
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<div className='modal-root__modal doodle-modal'>
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<div className='doodle-modal__container'>
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<canvas ref={this.setCanvasRef} />
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</div>
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<div className='doodle-modal__action-bar'>
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<Button text='Done' onClick={this.handleDone} />
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</div>
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</div>
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);
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}
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}
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