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| 1 | +import TokenSimulationVisualizerModule from '../../lib/visualizer'; |
| 2 | + |
| 3 | +import BpmnViewer from 'bpmn-js/lib/NavigatedViewer'; |
| 4 | + |
| 5 | +import fileDrop from 'file-drops'; |
| 6 | + |
| 7 | +import fileOpen from 'file-open'; |
| 8 | + |
| 9 | +import exampleXML from '../resources/example.bpmn'; |
| 10 | + |
| 11 | + |
| 12 | +const url = new URL(window.location.href); |
| 13 | + |
| 14 | +const persistent = url.searchParams.has('p'); |
| 15 | +const active = url.searchParams.has('e'); |
| 16 | + |
| 17 | +const initialDiagram = (() => { |
| 18 | + try { |
| 19 | + return persistent && localStorage['diagram-xml'] || exampleXML; |
| 20 | + } catch (err) { |
| 21 | + return exampleXML; |
| 22 | + } |
| 23 | +})(); |
| 24 | + |
| 25 | +const ExampleModule = { |
| 26 | + __init__: [ |
| 27 | + [ 'eventBus', 'bpmnjs', 'toggleMode', 'executionVisualizer', function(eventBus, bpmnjs, toggleMode, executionVisualizer) { |
| 28 | + |
| 29 | + if (persistent) { |
| 30 | + eventBus.on('commandStack.changed', function() { |
| 31 | + bpmnjs.saveXML().then(result => { |
| 32 | + localStorage['diagram-xml'] = result.xml; |
| 33 | + }); |
| 34 | + }); |
| 35 | + } |
| 36 | + |
| 37 | + if ('history' in window) { |
| 38 | + eventBus.on('tokenSimulation.toggleMode', event => { |
| 39 | + |
| 40 | + if (event.active) { |
| 41 | + url.searchParams.set('e', '1'); |
| 42 | + } else { |
| 43 | + url.searchParams.delete('e'); |
| 44 | + } |
| 45 | + |
| 46 | + history.replaceState({}, document.title, url.toString()); |
| 47 | + }); |
| 48 | + } |
| 49 | + |
| 50 | + eventBus.on('diagram.init', 500, () => { |
| 51 | + toggleMode.toggleMode(active); |
| 52 | + }); |
| 53 | + |
| 54 | + // Wire up example UI controls |
| 55 | + setupControls(toggleMode, executionVisualizer, eventBus); |
| 56 | + } ] |
| 57 | + ] |
| 58 | +}; |
| 59 | + |
| 60 | +function setupControls(toggleMode, executionVisualizer, eventBus) { |
| 61 | + const toggleBtn = document.getElementById('toggleMode'); |
| 62 | + const step1Btn = document.getElementById('step1'); |
| 63 | + const step2Btn = document.getElementById('step2'); |
| 64 | + const step3Btn = document.getElementById('step3'); |
| 65 | + const step4Btn = document.getElementById('step4'); |
| 66 | + const clearBtn = document.getElementById('clear'); |
| 67 | + |
| 68 | + let modeActive = false; |
| 69 | + |
| 70 | + toggleBtn.addEventListener('click', () => { |
| 71 | + modeActive = !modeActive; |
| 72 | + toggleMode.toggleMode(modeActive); |
| 73 | + toggleBtn.textContent = modeActive ? 'Mode: ON' : 'Mode: OFF'; |
| 74 | + }); |
| 75 | + |
| 76 | + // Example execution steps using actual IDs from example.bpmn |
| 77 | + step1Btn.addEventListener('click', () => { |
| 78 | + if (!modeActive) { |
| 79 | + modeActive = true; |
| 80 | + toggleMode.toggleMode(modeActive); |
| 81 | + toggleBtn.textContent = 'Mode: ON'; |
| 82 | + } |
| 83 | + executionVisualizer.setExecutionState({ |
| 84 | + executedElements: [], |
| 85 | + activeElement: 'StartEvent_0j9yk1o' |
| 86 | + }); |
| 87 | + }); |
| 88 | + |
| 89 | + step2Btn.addEventListener('click', () => { |
| 90 | + if (!modeActive) { |
| 91 | + modeActive = true; |
| 92 | + toggleMode.toggleMode(modeActive); |
| 93 | + toggleBtn.textContent = 'Mode: ON'; |
| 94 | + } |
| 95 | + executionVisualizer.setExecutionState({ |
| 96 | + executedElements: ['StartEvent_0j9yk1o', 'SequenceFlow_1bpznq3'], |
| 97 | + activeElement: 'ParallelGateway_0s75uad' |
| 98 | + }); |
| 99 | + }); |
| 100 | + |
| 101 | + step3Btn.addEventListener('click', () => { |
| 102 | + if (!modeActive) { |
| 103 | + modeActive = true; |
| 104 | + toggleMode.toggleMode(modeActive); |
| 105 | + toggleBtn.textContent = 'Mode: ON'; |
| 106 | + } |
| 107 | + executionVisualizer.setExecutionState({ |
| 108 | + executedElements: ['StartEvent_0j9yk1o', 'SequenceFlow_1bpznq3', 'ParallelGateway_0s75uad', 'SequenceFlow_10d6h3a'], |
| 109 | + activeElement: 'Task_1upmjgh' |
| 110 | + }); |
| 111 | + }); |
| 112 | + |
| 113 | + step4Btn.addEventListener('click', () => { |
| 114 | + if (!modeActive) { |
| 115 | + modeActive = true; |
| 116 | + toggleMode.toggleMode(modeActive); |
| 117 | + toggleBtn.textContent = 'Mode: ON'; |
| 118 | + } |
| 119 | + executionVisualizer.setExecutionState({ |
| 120 | + executedElements: ['StartEvent_0j9yk1o', 'SequenceFlow_1bpznq3', 'ParallelGateway_0s75uad', 'SequenceFlow_10d6h3a', 'Task_1upmjgh', 'SequenceFlow_1dzm18n'], |
| 121 | + activeElement: 'ParallelGateway_158jo5x' |
| 122 | + }); |
| 123 | + }); |
| 124 | + |
| 125 | + clearBtn.addEventListener('click', () => { |
| 126 | + executionVisualizer.clear(); |
| 127 | + }); |
| 128 | +} |
| 129 | + |
| 130 | +const viewer = new BpmnViewer({ |
| 131 | + container: '#canvas', |
| 132 | + additionalModules: [ |
| 133 | + ExampleModule, |
| 134 | + TokenSimulationVisualizerModule |
| 135 | + ] |
| 136 | +}); |
| 137 | + |
| 138 | +function openDiagram(diagram) { |
| 139 | + return viewer.importXML(diagram) |
| 140 | + .then(({ warnings }) => { |
| 141 | + if (warnings.length) { |
| 142 | + console.warn(warnings); |
| 143 | + } |
| 144 | + |
| 145 | + if (persistent) { |
| 146 | + localStorage['diagram-xml'] = diagram; |
| 147 | + } |
| 148 | + |
| 149 | + viewer.get('canvas').zoom('fit-viewport'); |
| 150 | + }) |
| 151 | + .catch(err => { |
| 152 | + console.error(err); |
| 153 | + }); |
| 154 | +} |
| 155 | + |
| 156 | +function openFile(files) { |
| 157 | + if (!files.length) { |
| 158 | + return; |
| 159 | + } |
| 160 | + |
| 161 | + const file = files[0]; |
| 162 | + |
| 163 | + const reader = new FileReader(); |
| 164 | + |
| 165 | + reader.onload = function(e) { |
| 166 | + const xml = e.target.result; |
| 167 | + |
| 168 | + openDiagram(xml); |
| 169 | + }; |
| 170 | + |
| 171 | + reader.readAsText(file); |
| 172 | +} |
| 173 | + |
| 174 | +fileDrop('Drop a BPMN diagram', function(files) { |
| 175 | + openFile(files); |
| 176 | +}); |
| 177 | + |
| 178 | +document.querySelector('#canvas').addEventListener('dragover', hideDropMessage); |
| 179 | + |
| 180 | +function hideDropMessage() { |
| 181 | + const dropMessage = document.querySelector('.drop-message'); |
| 182 | + |
| 183 | + if (dropMessage) { |
| 184 | + dropMessage.style.display = 'none'; |
| 185 | + } |
| 186 | + |
| 187 | + document.querySelector('#canvas').removeEventListener('dragover', hideDropMessage); |
| 188 | +} |
| 189 | + |
| 190 | +openDiagram(initialDiagram); |
| 191 | + |
| 192 | +// open on click |
| 193 | +document.body.addEventListener('click', event => { |
| 194 | + |
| 195 | + // we only react if clicked in a non-input area |
| 196 | + if (!event.target.closest('.djs-palette, input, textarea, button, select, a')) { |
| 197 | + fileOpen(openFile, { |
| 198 | + accept: '.bpmn', |
| 199 | + multiple: false |
| 200 | + }); |
| 201 | + } |
| 202 | +}); |
| 203 | + |
| 204 | +// expose to window for external access |
| 205 | +window.bpmnViewer = viewer; |
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