1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | 1× 1× 98× 98× 98× 36× 36× 36× 36× 36× 98× 35× 35× 35× 35× 62× 25× 25× 25× 35× 25× 98× 70× 70× 70× 70× 70× 107× 36× 24× 70× 98× 78× 78× 78× 13× 98× 71× 71× 71× 71× 17× 17× 17× 98× 31× 31× 31× 31× 31× 8× 8× 1× 1× 72× 107× | import { forEach, filter } from 'min-dash'; import inherits from 'inherits'; var LOW_PRIORITY = 250, HIGH_PRIORITY = 1400; import { add as collectionAdd, indexOf as collectionIdx } from '../../util/Collections'; import { saveClear } from '../../util/Removal'; import CommandInterceptor from '../../command/CommandInterceptor'; /** * A handler that makes sure labels are properly moved with * their label targets. * * @param {didi.Injector} injector * @param {EventBus} eventBus * @param {Modeling} modeling */ export default function LabelSupport(injector, eventBus, modeling) { CommandInterceptor.call(this, eventBus); var movePreview = injector.get('movePreview', false); // remove labels from the collection that are being // moved with other elements anyway eventBus.on('shape.move.start', HIGH_PRIORITY, function(e) { var context = e.context, shapes = context.shapes, validatedShapes = context.validatedShapes; context.shapes = removeLabels(shapes); context.validatedShapes = removeLabels(validatedShapes); }); // add labels to visual's group movePreview && eventBus.on('shape.move.start', LOW_PRIORITY, function(e) { var context = e.context, shapes = context.shapes; var labels = []; forEach(shapes, function(element) { forEach(element.labels, function(label) { Eif (!label.hidden && context.shapes.indexOf(label) === -1) { labels.push(label); } Iif (element.labelTarget) { labels.push(element); } }); }); forEach(labels, function(label) { movePreview.makeDraggable(context, label, true); }); }); // add all labels to move closure this.preExecuted('elements.move', HIGH_PRIORITY, function(e) { var context = e.context, closure = context.closure, enclosedElements = closure.enclosedElements; var enclosedLabels = []; // find labels that are not part of // move closure yet and add them forEach(enclosedElements, function(element) { forEach(element.labels, function(label) { if (!enclosedElements[label.id]) { enclosedLabels.push(label); } }); }); closure.addAll(enclosedLabels); }); this.preExecute([ 'connection.delete', 'shape.delete' ], function(e) { var context = e.context, element = context.connection || context.shape; saveClear(element.labels, function(label) { modeling.removeShape(label, { nested: true }); }); }); this.execute('shape.delete', function(e) { var context = e.context, shape = context.shape, labelTarget = shape.labelTarget; // unset labelTarget if (labelTarget) { context.labelTargetIndex = collectionIdx(labelTarget.labels, shape); context.labelTarget = labelTarget; shape.labelTarget = null; } }); this.revert('shape.delete', function(e) { var context = e.context, shape = context.shape, labelTarget = context.labelTarget, labelTargetIndex = context.labelTargetIndex; // restore labelTarget if (labelTarget) { collectionAdd(labelTarget.labels, shape, labelTargetIndex); shape.labelTarget = labelTarget; } }); } inherits(LabelSupport, CommandInterceptor); LabelSupport.$inject = [ 'injector', 'eventBus', 'modeling' ]; /** * Return a filtered list of elements that do not * contain attached elements with hosts being part * of the selection. * * @param {Array<djs.model.Base>} elements * * @return {Array<djs.model.Base>} filtered */ function removeLabels(elements) { return filter(elements, function(element) { // filter out labels that are move together // with their label targets return elements.indexOf(element.labelTarget) === -1; }); } |