70 lines
1.5 KiB
JavaScript
70 lines
1.5 KiB
JavaScript
'use strict';
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var BpmnTreeWalker = require('./BpmnTreeWalker');
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/**
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* Import the definitions into a diagram.
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*
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* Errors and warnings are reported through the specified callback.
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*
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* @param {Diagram} diagram
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* @param {ModdleElement} definitions
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* @param {Function} done the callback, invoked with (err, [ warning ]) once the import is done
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*/
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function importBpmnDiagram(diagram, definitions, done) {
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var importer = diagram.get('bpmnImporter'),
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eventBus = diagram.get('eventBus'),
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translate = diagram.get('translate');
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var error,
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warnings = [];
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/**
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* Walk the diagram semantically, importing (=drawing)
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* all elements you encounter.
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*
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* @param {ModdleElement} definitions
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*/
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function render(definitions) {
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var visitor = {
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root: function(element) {
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return importer.add(element);
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},
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element: function(element, parentShape) {
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return importer.add(element, parentShape);
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},
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error: function(message, context) {
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warnings.push({ message: message, context: context });
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}
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};
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var walker = new BpmnTreeWalker(visitor, translate);
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// traverse BPMN 2.0 document model,
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// starting at definitions
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walker.handleDefinitions(definitions);
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}
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eventBus.fire('import.render.start', { definitions: definitions });
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try {
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render(definitions);
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} catch (e) {
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error = e;
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}
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eventBus.fire('import.render.complete', {
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error: error,
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warnings: warnings
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});
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done(error, warnings);
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}
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module.exports.importBpmnDiagram = importBpmnDiagram; |