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/*
* Copyright © 2018 European Support Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import React, { Component } from 'react';
import fileSaver from 'file-saver';
import CustomModeler from './custom-modeler';
import propertiesPanelModule from 'bpmn-js-properties-panel';
import propertiesProviderModule from 'bpmn-js-properties-panel/lib/provider/camunda';
import camundaModuleDescriptor from 'camunda-bpmn-moddle/resources/camunda';
import newDiagramXML from './newDiagram.bpmn';
import PropTypes from 'prop-types';
import CompositionButtons from './components/CompositionButtonsPanel';
class CompositionView extends Component {
static propTypes = {
compositionUpdate: PropTypes.func,
showErrorModal: PropTypes.func,
composition: PropTypes.string,
name: PropTypes.string
};
constructor() {
super();
this.generatedId = 'bpmn-container' + Date.now();
this.fileInput = React.createRef();
this.state = {
diagram: false
};
}
componentDidMount() {
const { composition } = this.props;
this.modeler = new CustomModeler({
propertiesPanel: {
parent: '#js-properties-panel'
},
additionalModules: [
propertiesPanelModule,
propertiesProviderModule
],
moddleExtensions: {
camunda: camundaModuleDescriptor
}
});
window.modeler = this.modeler;
this.modeler.attachTo('#' + this.generatedId);
this.setDiagram(composition ? composition : newDiagramXML);
var eventBus = this.modeler.get('eventBus');
eventBus.on('element.out', () => {
this.exportDiagramToStore();
});
}
setDiagram = diagram => {
this.setState(
{
diagram
},
this.importXML
);
};
importXML = () => {
const { diagram } = this.state;
let modeler = this.modeler;
this.modeler.importXML(diagram, err => {
if (err) {
//TDOD add i18n
return this.props.showErrorModal('could not import diagram');
}
let canvas = modeler.get('canvas');
canvas.zoom('fit-viewport');
});
};
exportDiagramToStore = () => {
this.modeler.saveXML({ format: true }, (err, xml) => {
if (err) {
//TODO add i18n
return this.props.showErrorModal('could not save diagram');
}
return this.props.compositionUpdate(xml);
});
};
exportDiagram = () => {
const { name, showErrorModal } = this.props;
this.modeler.saveXML({ format: true }, (err, xml) => {
if (err) {
//TODO add i18n
return showErrorModal('could not save diagram');
}
const blob = new Blob([xml], { type: 'text/html;charset=utf-8' });
fileSaver.saveAs(blob, `${name}-diagram.bpmn`);
});
};
loadNewDiagram = () => {
this.setDiagram(newDiagramXML);
};
uploadDiagram = () => {
this.fileInput.current.click();
};
handleFileInputChange = filesList => {
const file = filesList[0];
const reader = new FileReader();
reader.onloadend = event => {
var xml = event.target.result;
this.setDiagram(xml);
this.fileInput.value = '';
};
reader.readAsText(file);
};
render() {
return (
<div className="composition-view content">
<input
ref={this.fileInput}
onChange={e => this.handleFileInputChange(e.target.files)}
id="file-input"
accept=".bpmn, .xml"
type="file"
name="file-input"
style={{ display: 'none' }}
/>
<div
onBlur={() => {
this.exportDiagramToStore();
}}
className="bpmn-container"
id={this.generatedId}
/>
<div className="bpmn-sidebar">
<div
className="properties-panel"
id="js-properties-panel"
/>
<CompositionButtons
onClean={this.loadNewDiagram}
onDownload={this.exportDiagram}
onUpload={this.uploadDiagram}
/>
</div>
</div>
);
}
}
export default CompositionView;
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