catalog-ui/src/app/ng2/pages/composition/graph/composition-graph.component.ts

   1 /**
   2  * Created by ob0695 on 4/24/2018.
   3  */
   4 import { AfterViewInit, Component, ElementRef, HostBinding, Input } from '@angular/core';
   5 import { Select, Store } from '@ngxs/store';
   6 import {
   7     ButtonModel,
   8     Component as TopologyTemplate,
   9     ComponentInstance,
  10     CompositionCiNodeBase,
  11     ConnectRelationModel,
  12     GroupInstance,
  13     LeftPaletteComponent,
  14     LinkMenu,
  15     Match,
  16     ModalModel,
  17     NodesFactory,
  18     Point,
  19     PolicyInstance,
  20     PropertyBEModel,
  21     Relationship,
  22     StepModel,
  23     Zone,
  24     ZoneInstance,
  25     ZoneInstanceAssignmentType,
  26     ZoneInstanceMode,
  27     ZoneInstanceType
  28 } from 'app/models';
  29 import { ForwardingPath } from 'app/models/forwarding-path';
  30 import { CompositionCiServicePathLink } from 'app/models/graph/graph-links/composition-graph-links/composition-ci-service-path-link';
  31 import { UIZoneInstanceObject } from 'app/models/ui-models/ui-zone-instance-object';
  32 import { CompositionService } from 'app/ng2/pages/composition/composition.service';
  33 import { CommonGraphUtils } from 'app/ng2/pages/composition/graph/common/common-graph-utils';
  34 import { ComponentInstanceNodesStyle } from 'app/ng2/pages/composition/graph/common/style/component-instances-nodes-style';
  35 import { ConnectionPropertiesViewComponent } from 'app/ng2/pages/composition/graph/connection-wizard/connection-properties-view/connection-properties-view.component';
  36 import { ConnectionWizardHeaderComponent } from 'app/ng2/pages/composition/graph/connection-wizard/connection-wizard-header/connection-wizard-header.component';
  37 import { ConnectionWizardService } from 'app/ng2/pages/composition/graph/connection-wizard/connection-wizard.service';
  38 import { FromNodeStepComponent } from 'app/ng2/pages/composition/graph/connection-wizard/from-node-step/from-node-step.component';
  39 import { PropertiesStepComponent } from 'app/ng2/pages/composition/graph/connection-wizard/properties-step/properties-step.component';
  40 import { ToNodeStepComponent } from 'app/ng2/pages/composition/graph/connection-wizard/to-node-step/to-node-step.component';
  41 import { WorkspaceService } from 'app/ng2/pages/workspace/workspace.service';
  42 import { ComponentInstanceServiceNg2 } from 'app/ng2/services/component-instance-services/component-instance.service';
  43 import { TopologyTemplateService } from 'app/ng2/services/component-services/topology-template.service';
  44 import { ModalService } from 'app/ng2/services/modal.service';
  45 import { ComponentGenericResponse } from 'app/ng2/services/responses/component-generic-response';
  46 import { ServiceGenericResponse } from 'app/ng2/services/responses/service-generic-response';
  47 import { WorkspaceState } from 'app/ng2/store/states/workspace.state';
  48 import { EventListenerService } from 'app/services';
  49 import { ComponentInstanceFactory, EVENTS, SdcElementType } from 'app/utils';
  50 import { ComponentType, GRAPH_EVENTS, GraphColors, DEPENDENCY_EVENTS , SUBSTITUTION_FILTER_EVENTS} from 'app/utils/constants';
  51 import * as _ from 'lodash';
  52 import { DndDropEvent } from 'ngx-drag-drop/ngx-drag-drop';
  53 import { SdcUiServices } from 'onap-ui-angular';
  54 import { NotificationSettings } from 'onap-ui-angular/dist/notifications/utilities/notification.config';
  55 import { menuItem } from 'onap-ui-angular/dist/simple-popup-menu/menu-data.interface';
  56 import { CytoscapeEdgeEditation } from '../../../../../third-party/cytoscape.js-edge-editation/CytoscapeEdgeEditation.js';
  57 import { SelectedComponentType, SetSelectedComponentAction } from '../common/store/graph.actions';
  58 import { GraphState } from '../common/store/graph.state';
  59 import {
  60     CompositionGraphGeneralUtils,
  61     CompositionGraphNodesUtils,
  62     CompositionGraphZoneUtils,
  63     MatchCapabilitiesRequirementsUtils
  64 } from './utils';
  65 import { CompositionGraphLinkUtils } from './utils/composition-graph-links-utils';
  66 import { CompositionGraphPaletteUtils } from './utils/composition-graph-palette-utils';
  67 import { ServicePathGraphUtils } from './utils/composition-graph-service-path-utils';
  68 import { RelationshipOperationsStepComponent } from "app/ng2/pages/composition/graph/connection-wizard/relationship-operations-step/relationship-operations-step.component";
  69
  70 declare const window: any;
  71
  72 @Component({
  73     selector: 'composition-graph',
  74     templateUrl: './composition-graph.component.html',
  75     styleUrls: ['./composition-graph.component.less']
  76 })
  77
  78 export class CompositionGraphComponent implements AfterViewInit {
  79
  80     @Select(WorkspaceState.isViewOnly) isViewOnly$: boolean;
  81     @Select(GraphState.withSidebar) withSidebar$: boolean;
  82     @Input() topologyTemplate: TopologyTemplate;
  83     @HostBinding('attr.data-tests-id') dataTestId: string;
  84     @Input() testId: string;
  85
  86     // tslint:disable:variable-name
  87     private _cy: Cy.Instance;
  88     private zoneTagMode: string;
  89     private activeZoneInstance: ZoneInstance;
  90     private zones: Zone[];
  91     private currentlyClickedNodePosition: Cy.Position;
  92     private dragElement: JQuery;
  93     private dragComponent: ComponentInstance;
  94     private componentInstanceNames: string[];
  95     private topologyTemplateId: string;
  96     private topologyTemplateType: string;
  97
  98     constructor(private elRef: ElementRef,
  99                 private nodesFactory: NodesFactory,
 100                 private eventListenerService: EventListenerService,
 101                 private compositionGraphZoneUtils: CompositionGraphZoneUtils,
 102                 private generalGraphUtils: CompositionGraphGeneralUtils,
 103                 private compositionGraphLinkUtils: CompositionGraphLinkUtils,
 104                 private nodesGraphUtils: CompositionGraphNodesUtils,
 105                 private connectionWizardService: ConnectionWizardService,
 106                 private commonGraphUtils: CommonGraphUtils,
 107                 private modalService: ModalService,
 108                 private compositionGraphPaletteUtils: CompositionGraphPaletteUtils,
 109                 private topologyTemplateService: TopologyTemplateService,
 110                 private componentInstanceService: ComponentInstanceServiceNg2,
 111                 private matchCapabilitiesRequirementsUtils: MatchCapabilitiesRequirementsUtils,
 112                 private store: Store,
 113                 private compositionService: CompositionService,
 114                 private loaderService: SdcUiServices.LoaderService,
 115                 private workspaceService: WorkspaceService,
 116                 private notificationService: SdcUiServices.NotificationsService,
 117                 private simplePopupMenuService: SdcUiServices.simplePopupMenuService,
 118                 private servicePathGraphUtils: ServicePathGraphUtils) {
 119     }
 120
 121     ngOnInit() {
 122         this.dataTestId = this.testId;
 123         this.topologyTemplateId = this.workspaceService.metadata.uniqueId;
 124         this.topologyTemplateType = this.workspaceService.metadata.componentType;
 125
 126         this.store.dispatch(new SetSelectedComponentAction({
 127             component: this.topologyTemplate,
 128             type: SelectedComponentType.TOPOLOGY_TEMPLATE
 129         }));
 130         this.eventListenerService.registerObserverCallback(EVENTS.ON_CHECKOUT, () => {
 131             this.loadGraphData();
 132         });
 133         this.loadCompositionData();
 134     }
 135
 136     ngAfterViewInit() {
 137         this.loadGraph();
 138     }
 139
 140     ngOnDestroy() {
 141         this._cy.destroy();
 142         _.forEach(GRAPH_EVENTS, (event) => {
 143             this.eventListenerService.unRegisterObserver(event);
 144         });
 145         this.eventListenerService.unRegisterObserver(EVENTS.ON_CHECKOUT);
 146         this.eventListenerService.unRegisterObserver(DEPENDENCY_EVENTS.ON_DEPENDENCY_CHANGE);
 147         this.eventListenerService.unRegisterObserver(SUBSTITUTION_FILTER_EVENTS.ON_SUBSTITUTION_FILTER_CHANGE);
 148     }
 149
 150     public isViewOnly = (): boolean => {
 151         return this.store.selectSnapshot((state) => state.workspace.isViewOnly);
 152     }
 153
 154     public zoom = (zoomIn: boolean): void => {
 155         const currentZoom: number = this._cy.zoom();
 156         if (zoomIn) {
 157             this.generalGraphUtils.zoomGraphTo(this._cy, currentZoom + .1);
 158         } else {
 159             this.generalGraphUtils.zoomGraphTo(this._cy, currentZoom - .1);
 160         }
 161     }
 162
 163     public zoomAllWithoutSidebar = () => {
 164         setTimeout(() => { // wait for sidebar changes to take effect before zooming
 165             this.generalGraphUtils.zoomAll(this._cy);
 166         });
 167     }
 168
 169     public getAutoCompleteValues = (searchTerm: string) => {
 170         if (searchTerm.length > 1) { // US requirement: only display search results after 2nd letter typed.
 171             const nodes: Cy.CollectionNodes = this.nodesGraphUtils.getMatchingNodesByName(this._cy, searchTerm);
 172             this.componentInstanceNames = _.map(nodes, (node) => node.data('name'));
 173         } else {
 174             this.componentInstanceNames = [];
 175         }
 176     }
 177
 178     public highlightSearchMatches = (searchTerm: string) => {
 179         this.nodesGraphUtils.highlightMatchingNodesByName(this._cy, searchTerm);
 180         const matchingNodes: Cy.CollectionNodes = this.nodesGraphUtils.getMatchingNodesByName(this._cy, searchTerm);
 181         this.generalGraphUtils.zoomAll(this._cy, matchingNodes);
 182     }
 183
 184     public onDrop = (dndEvent: DndDropEvent) => {
 185         this.compositionGraphPaletteUtils.addNodeFromPalette(this._cy, dndEvent);
 186     }
 187
 188     public openServicePathMenu = ($event): void => {
 189
 190         const menuConfig: menuItem[] = [];
 191         if (!this.isViewOnly()) {
 192             menuConfig.push({
 193                 text: 'Create Service Flow',
 194                 action: () => this.servicePathGraphUtils.onCreateServicePath()
 195             });
 196         }
 197         menuConfig.push({
 198             text: 'Service Flows List',
 199             type: '',
 200             action: () => this.servicePathGraphUtils.onListServicePath()
 201         });
 202         const popup = this.simplePopupMenuService.openBaseMenu(menuConfig, {
 203             x: $event.x,
 204             y: $event.y
 205         });
 206
 207     }
 208
 209     public deletePathsOnCy = () => {
 210         this.servicePathGraphUtils.deletePathsFromGraph(this._cy);
 211     }
 212
 213     public drawPathOnCy = (data: ForwardingPath) => {
 214         this.servicePathGraphUtils.drawPath(this._cy, data);
 215     }
 216
 217     public onTapEnd = (event: Cy.EventObject) => {
 218         if (this.zoneTagMode) {
 219             return;
 220         }
 221         if (event.cyTarget === this._cy) { // On Background clicked
 222             if (this._cy.$('node:selected').length === 0) { // if the background click but not dragged
 223                 if (this.activeZoneInstance) {
 224                     this.unsetActiveZoneInstance();
 225                     this.selectTopologyTemplate();
 226                 } else {
 227                     this.eventListenerService.notifyObservers(GRAPH_EVENTS.ON_GRAPH_BACKGROUND_CLICKED);
 228                     this.selectTopologyTemplate();
 229                 }
 230
 231             }
 232         } else if (event.cyTarget[0].isEdge()) { // and Edge clicked
 233             this.compositionGraphLinkUtils.handleLinkClick(this._cy, event);
 234             if (event.cyTarget[0].data().type === CompositionCiServicePathLink.LINK_TYPE) {
 235                 return;
 236             }
 237             this.openModifyLinkMenu(this.compositionGraphLinkUtils.getModifyLinkMenu(event.cyTarget[0], event), event);
 238         } else { // On Node clicked
 239
 240             this._cy.nodes(':grabbed').style({'overlay-opacity': 0});
 241
 242             const newPosition = event.cyTarget[0].position();
 243             // node position changed (drop after drag event) - we need to update position
 244             if (this.currentlyClickedNodePosition.x !== newPosition.x || this.currentlyClickedNodePosition.y !== newPosition.y) {
 245                 const nodesMoved: Cy.CollectionNodes = this._cy.$(':grabbed');
 246                 this.nodesGraphUtils.onNodesPositionChanged(this._cy, this.topologyTemplate, nodesMoved);
 247             } else {
 248                 if (this.activeZoneInstance) {
 249                     this.unsetActiveZoneInstance();
 250                 }
 251                 this.selectComponentInstance(event.cyTarget[0].data().componentInstance);
 252             }
 253         }
 254     }
 255
 256     private registerCytoscapeGraphEvents() {
 257
 258         this._cy.on('addedgemouseup', (event, data) => {
 259             const connectRelationModel: ConnectRelationModel = this.compositionGraphLinkUtils.onLinkDrawn(this._cy, data.source, data.target);
 260             if (connectRelationModel != null) {
 261                 this.connectionWizardService.setRelationMenuDirectiveObj(connectRelationModel);
 262                 this.connectionWizardService.selectedMatch = null;
 263
 264                 const steps: StepModel[] = [];
 265                 const fromNodeName: string = connectRelationModel.fromNode.componentInstance.name;
 266                 const toNodeName: string = connectRelationModel.toNode.componentInstance.name;
 267                 steps.push(new StepModel(fromNodeName, FromNodeStepComponent));
 268                 steps.push(new StepModel(toNodeName, ToNodeStepComponent));
 269                 steps.push(new StepModel('Properties', PropertiesStepComponent));
 270                 steps.push(new StepModel('Operations', RelationshipOperationsStepComponent));
 271                 const wizardTitle = 'Connect: ' + fromNodeName + ' to ' + toNodeName;
 272                 const modalInstance = this.modalService.createMultiStepsWizard(wizardTitle, steps, this.createLinkFromMenu, ConnectionWizardHeaderComponent);
 273                 modalInstance.instance.open();
 274             }
 275         });
 276
 277         this._cy.on('tapstart', 'node', (event: Cy.EventObject) => {
 278             this.currentlyClickedNodePosition = angular.copy(event.cyTarget[0].position()); // update node position on drag
 279         });
 280
 281         this._cy.on('drag', 'node', (event: Cy.EventObject) => {
 282             if (event.cyTarget.data().componentSubType !== SdcElementType.POLICY && event.cyTarget.data().componentSubType !== SdcElementType.GROUP) {
 283                 event.cyTarget.style({'overlay-opacity': 0.24});
 284                 if (this.generalGraphUtils.isValidDrop(this._cy, event.cyTarget)) {
 285                     event.cyTarget.style({'overlay-color': GraphColors.NODE_BACKGROUND_COLOR});
 286                 } else {
 287                     event.cyTarget.style({'overlay-color': GraphColors.NODE_OVERLAPPING_BACKGROUND_COLOR});
 288                 }
 289             }
 290         });
 291
 292         this._cy.on('handlemouseover', (event, payload) => {
 293             // no need to add opacity while we are dragging and hovering othe nodes- or if opacity was already calculated for these nodes
 294             if (payload.node.grabbed() || this._cy.scratch('_edge_editation_highlights') === true) {
 295                 return;
 296             }
 297
 298             if (this.zoneTagMode) {
 299                 this.zoneTagMode = this.zones[this.activeZoneInstance.type].getHoverTagModeId();
 300                 return;
 301             }
 302
 303             const nodesData = this.nodesGraphUtils.getAllNodesData(this._cy.nodes());
 304             const nodesLinks = this.generalGraphUtils.getAllCompositionCiLinks(this._cy);
 305             const instance = payload.node.data().componentInstance;
 306             const filteredNodesData = this.matchCapabilitiesRequirementsUtils.findMatchingNodesToComponentInstance(instance, nodesData, nodesLinks);
 307             this.matchCapabilitiesRequirementsUtils.highlightMatchingComponents(filteredNodesData, this._cy);
 308             this.matchCapabilitiesRequirementsUtils.fadeNonMachingComponents(filteredNodesData, nodesData, this._cy, payload.node.data());
 309
 310             this._cy.scratch()._edge_editation_highlights = true;
 311         });
 312
 313         this._cy.on('handlemouseout', () => {
 314             if (this.zoneTagMode) {
 315                 this.zoneTagMode = this.zones[this.activeZoneInstance.type].getTagModeId();
 316                 return;
 317             }
 318             if (this._cy.scratch('_edge_editation_highlights') === true) {
 319                 this._cy.removeScratch('_edge_editation_highlights');
 320                 this._cy.emit('hidehandles');
 321                 this.matchCapabilitiesRequirementsUtils.resetFadedNodes(this._cy);
 322             }
 323         });
 324
 325         this._cy.on('tapend', (event: Cy.EventObject) => {
 326             this.onTapEnd(event);
 327         });
 328
 329         this._cy.on('boxselect', 'node', (event: Cy.EventObject) => {
 330             this.unsetActiveZoneInstance();
 331             this.selectComponentInstance(event.cyTarget.data().componentInstance);
 332         });
 333
 334         this._cy.on('canvasredraw', (event: Cy.EventObject) => {
 335             if (this.zoneTagMode) {
 336                 this.compositionGraphZoneUtils.showZoneTagIndications(this._cy, this.activeZoneInstance);
 337             }
 338         });
 339
 340         this._cy.on('handletagclick', (event: Cy.EventObject, eventData: any) => {
 341             this.compositionGraphZoneUtils.handleTagClick(this._cy, this.activeZoneInstance, eventData.nodeId);
 342         });
 343     }
 344
 345     private initViewMode() {
 346
 347         if (this.isViewOnly()) {
 348             // remove event listeners
 349             this._cy.off('drag');
 350             this._cy.off('handlemouseout');
 351             this._cy.off('handlemouseover');
 352             this._cy.off('canvasredraw');
 353             this._cy.off('handletagclick');
 354             this._cy.edges().unselectify();
 355         }
 356     }
 357
 358     private saveChangedCapabilityProperties = (): Promise<PropertyBEModel[]> => {
 359         return new Promise<PropertyBEModel[]>((resolve) => {
 360             const capabilityPropertiesBE: PropertyBEModel[] = this.connectionWizardService.changedCapabilityProperties.map((prop) => {
 361                 prop.value = prop.getJSONValue();
 362                 const propBE = new PropertyBEModel(prop);
 363                 propBE.parentUniqueId = this.connectionWizardService.selectedMatch.relationship.relation.capabilityOwnerId;
 364                 return propBE;
 365             });
 366             if (capabilityPropertiesBE.length > 0) {
 367                 // if there are capability properties to update, then first update capability properties and then resolve promise
 368                 this.componentInstanceService
 369                     .updateInstanceCapabilityProperties(
 370                         this.topologyTemplate,
 371                         this.connectionWizardService.selectedMatch.toNode,
 372                         this.connectionWizardService.selectedMatch.capability,
 373                         capabilityPropertiesBE
 374                     )
 375                     .subscribe((response) => {
 376                         console.log('Update resource instance capability properties response: ', response);
 377                         this.connectionWizardService.changedCapabilityProperties = [];
 378                         resolve(capabilityPropertiesBE);
 379                     });
 380             } else {
 381                 // no capability properties to update, immediately resolve promise
 382                 resolve(capabilityPropertiesBE);
 383             }
 384         });
 385     }
 386
 387     private loadCompositionData = () => {
 388         this.loaderService.activate();
 389         this.topologyTemplateService.getComponentCompositionData(this.topologyTemplateId, this.topologyTemplateType).subscribe((response: ComponentGenericResponse) => {
 390             if (this.topologyTemplateType === ComponentType.SERVICE) {
 391                 this.compositionService.forwardingPaths = (response as ServiceGenericResponse).forwardingPaths;
 392             }
 393             this.compositionService.componentInstances = response.componentInstances;
 394             this.compositionService.componentInstancesRelations = response.componentInstancesRelations;
 395             this.compositionService.groupInstances = response.groupInstances;
 396             this.compositionService.policies = response.policies;
 397             this.loadGraphData();
 398             this.loaderService.deactivate();
 399         }, (error) => { this.loaderService.deactivate(); });
 400     }
 401
 402     private loadGraph = () => {
 403         const graphEl = this.elRef.nativeElement.querySelector('.sdc-composition-graph-wrapper');
 404         this.initGraph(graphEl);
 405         this.zones = this.compositionGraphZoneUtils.createCompositionZones();
 406         this.registerCytoscapeGraphEvents();
 407         this.registerCustomEvents();
 408         this.initViewMode();
 409     }
 410
 411     private initGraphNodes() {
 412
 413         setTimeout(() => {
 414             const handles = new CytoscapeEdgeEditation();
 415             handles.init(this._cy);
 416             if (!this.isViewOnly()) { // Init nodes handle extension - enable dynamic links
 417                 handles.initNodeEvents();
 418                 handles.registerHandle(ComponentInstanceNodesStyle.getAddEdgeHandle());
 419             }
 420             handles.registerHandle(ComponentInstanceNodesStyle.getTagHandle());
 421             handles.registerHandle(ComponentInstanceNodesStyle.getTaggedPolicyHandle());
 422             handles.registerHandle(ComponentInstanceNodesStyle.getTaggedGroupHandle());
 423         }, 0);
 424
 425         _.each(this.compositionService.componentInstances, (instance) => {
 426             const compositionGraphNode: CompositionCiNodeBase = this.nodesFactory.createNode(instance);
 427             this.commonGraphUtils.addComponentInstanceNodeToGraph(this._cy, compositionGraphNode);
 428         });
 429
 430     }
 431
 432     private loadGraphData = () => {
 433         this.initGraphNodes();
 434         this.compositionGraphLinkUtils.initGraphLinks(this._cy, this.compositionService.componentInstancesRelations);
 435         this.compositionGraphZoneUtils.initZoneInstances(this.zones);
 436         setTimeout(() => { // Need setTimeout so that angular canvas changes will take effect before resize & center
 437             this.generalGraphUtils.zoomAllWithMax(this._cy, 1);
 438         });
 439         this.componentInstanceNames = _.map(this._cy.nodes(), (node) => node.data('name'));
 440     }
 441
 442     private initGraph(graphEl: JQuery) {
 443
 444         this._cy = cytoscape({
 445             container: graphEl,
 446             style: ComponentInstanceNodesStyle.getCompositionGraphStyle(),
 447             zoomingEnabled: true,
 448             maxZoom: 1.2,
 449             minZoom: .1,
 450             userZoomingEnabled: false,
 451             userPanningEnabled: true,
 452             selectionType: 'single',
 453             boxSelectionEnabled: true,
 454             autolock: this.isViewOnly(),
 455             autoungrabify: this.isViewOnly()
 456         });
 457
 458         // Testing Bridge that allows Cypress tests to select a component on canvas not via DOM
 459         if (window.Cypress) {
 460             window.testBridge = this.createCanvasTestBridge();
 461         }
 462     }
 463
 464     private createCanvasTestBridge(): any {
 465         return {
 466             selectComponentInstance: (componentName: string) => {
 467                 const matchingNodesByName = this.nodesGraphUtils.getMatchingNodesByName(this._cy, componentName);
 468                 const component = new ComponentInstance(matchingNodesByName.first().data().componentInstance);
 469                 this.selectComponentInstance(component);
 470             }
 471         };
 472     }
 473
 474     // -------------------------------------------- ZONES---------------------------------------------------------//
 475     private zoneMinimizeToggle = (zoneType: ZoneInstanceType): void => {
 476         this.zones[zoneType].minimized = !this.zones[zoneType].minimized;
 477     }
 478
 479     private zoneInstanceModeChanged = (newMode: ZoneInstanceMode, instance: ZoneInstance, zoneId: ZoneInstanceType): void => {
 480         if (this.zoneTagMode) { // we're in tag mode.
 481             if (instance === this.activeZoneInstance && newMode === ZoneInstanceMode.NONE) { // we want to turn tag mode off.
 482                 this.zoneTagMode = null;
 483                 this.activeZoneInstance.mode = ZoneInstanceMode.SELECTED;
 484                 this.compositionGraphZoneUtils.endCyTagMode(this._cy);
 485                 this.eventListenerService.notifyObservers(GRAPH_EVENTS.ON_CANVAS_TAG_END, instance);
 486
 487             }
 488         } else {
 489             // when active zone instance gets hover/none, don't actually change mode, just show/hide indications
 490             if (instance !== this.activeZoneInstance || (instance === this.activeZoneInstance && newMode > ZoneInstanceMode.HOVER)) {
 491                 instance.mode = newMode;
 492             }
 493
 494             if (newMode === ZoneInstanceMode.NONE) {
 495                 this.compositionGraphZoneUtils.hideZoneTagIndications(this._cy);
 496                 if (this.zones[ZoneInstanceType.GROUP]) {
 497                     this.compositionGraphZoneUtils.hideGroupZoneIndications(this.zones[ZoneInstanceType.GROUP].instances);
 498                 }
 499             }
 500             if (newMode >= ZoneInstanceMode.HOVER) {
 501                 this.compositionGraphZoneUtils.showZoneTagIndications(this._cy, instance);
 502                 if (instance.type === ZoneInstanceType.POLICY && this.zones[ZoneInstanceType.GROUP]) {
 503                     this.compositionGraphZoneUtils.showGroupZoneIndications(this.zones[ZoneInstanceType.GROUP].instances, instance);
 504                 }
 505             }
 506             if (newMode >= ZoneInstanceMode.SELECTED) {
 507                 this._cy.$('node:selected').unselect();
 508                 if (this.activeZoneInstance && this.activeZoneInstance !== instance && newMode >= ZoneInstanceMode.SELECTED) {
 509                     this.activeZoneInstance.mode = ZoneInstanceMode.NONE;
 510                 }
 511                 this.activeZoneInstance = instance;
 512                 this.eventListenerService.notifyObservers(GRAPH_EVENTS.ON_ZONE_INSTANCE_SELECTED, instance);
 513                 this.store.dispatch(new SetSelectedComponentAction({
 514                     component: instance.instanceData,
 515                     type: SelectedComponentType[ZoneInstanceType[instance.type]]
 516                 }));
 517             }
 518             if (newMode === ZoneInstanceMode.TAG) {
 519                 this.compositionGraphZoneUtils.startCyTagMode(this._cy);
 520                 this.zoneTagMode = this.zones[zoneId].getTagModeId();
 521                 this.eventListenerService.notifyObservers(GRAPH_EVENTS.ON_CANVAS_TAG_START, zoneId);
 522             }
 523         }
 524     }
 525
 526     private zoneInstanceTagged = (taggedInstance: ZoneInstance) => {
 527         this.activeZoneInstance.addOrRemoveAssignment(taggedInstance.instanceData.uniqueId, ZoneInstanceAssignmentType.GROUPS);
 528         const newHandle: string = this.compositionGraphZoneUtils.getCorrectHandleForNode(taggedInstance.instanceData.uniqueId, this.activeZoneInstance);
 529         taggedInstance.showHandle(newHandle);
 530     }
 531
 532     private unsetActiveZoneInstance = (): void => {
 533         if (this.activeZoneInstance) {
 534             this.activeZoneInstance.mode = ZoneInstanceMode.NONE;
 535             this.activeZoneInstance = null;
 536             this.zoneTagMode = null;
 537         }
 538     }
 539
 540     private selectComponentInstance = (componentInstance: ComponentInstance) => {
 541         this.eventListenerService.notifyObservers(GRAPH_EVENTS.ON_NODE_SELECTED, componentInstance);
 542         this.store.dispatch(new SetSelectedComponentAction({
 543             component: componentInstance,
 544             type: SelectedComponentType.COMPONENT_INSTANCE
 545         }));
 546     }
 547
 548     private selectTopologyTemplate = () => {
 549         this.store.dispatch(new SetSelectedComponentAction({
 550             component: this.topologyTemplate,
 551             type: SelectedComponentType.TOPOLOGY_TEMPLATE
 552         }));
 553     }
 554
 555     private zoneBackgroundClicked = (): void => {
 556         if (!this.zoneTagMode && this.activeZoneInstance) {
 557             this.unsetActiveZoneInstance();
 558             this.selectTopologyTemplate();
 559         }
 560     }
 561
 562     private zoneAssignmentSaveStart = () => {
 563         this.loaderService.activate();
 564     }
 565
 566     private zoneAssignmentSaveComplete = (success: boolean) => {
 567         this.loaderService.deactivate();
 568         if (!success) {
 569             this.notificationService.push(new NotificationSettings('error', 'Update Failed', 'Error'));
 570         }
 571     }
 572
 573     private deleteZoneInstance = (deletedInstance: UIZoneInstanceObject) => {
 574         if (deletedInstance.type === ZoneInstanceType.POLICY) {
 575             this.compositionService.policies = this.compositionService.policies.filter((policy) => policy.uniqueId !== deletedInstance.uniqueId);
 576         } else if (deletedInstance.type === ZoneInstanceType.GROUP) {
 577             this.compositionService.groupInstances = this.compositionService.groupInstances.filter((group) => group.uniqueId !== deletedInstance.uniqueId);
 578         }
 579         // remove it from zones
 580         this.zones[deletedInstance.type].removeInstance(deletedInstance.uniqueId);
 581         if (deletedInstance.type === ZoneInstanceType.GROUP && !_.isEmpty(this.zones[ZoneInstanceType.POLICY])) {
 582             this.compositionGraphZoneUtils.updateTargetsOrMembersOnCanvasDelete(deletedInstance.uniqueId, [this.zones[ZoneInstanceType.POLICY]], ZoneInstanceAssignmentType.GROUPS);
 583         }
 584         this.selectTopologyTemplate();
 585     }
 586     // -------------------------------------------------------------------------------------------------------------//
 587
 588     private registerCustomEvents() {
 589
 590         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_GROUP_INSTANCE_UPDATE, (groupInstance: GroupInstance) => {
 591             this.compositionGraphZoneUtils.findAndUpdateZoneInstanceData(this.zones, groupInstance);
 592             this.notificationService.push(new NotificationSettings('success', 'Group Updated', 'Success'));
 593         });
 594
 595         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_POLICY_INSTANCE_UPDATE, (policyInstance: PolicyInstance) => {
 596             this.compositionGraphZoneUtils.findAndUpdateZoneInstanceData(this.zones, policyInstance);
 597             this.notificationService.push(new NotificationSettings('success', 'Policy Updated', 'Success'));
 598         });
 599
 600         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_PALETTE_COMPONENT_HOVER_IN, (leftPaletteComponent: LeftPaletteComponent) => {
 601             this.compositionGraphPaletteUtils.onComponentHoverIn(leftPaletteComponent, this._cy);
 602         });
 603
 604         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_ADD_ZONE_INSTANCE_FROM_PALETTE,
 605             (component: TopologyTemplate, paletteComponent: LeftPaletteComponent, startPosition: Point) => {
 606
 607                 const zoneType: ZoneInstanceType = this.compositionGraphZoneUtils.getZoneTypeForPaletteComponent(paletteComponent.categoryType);
 608                 this.compositionGraphZoneUtils.showZone(this.zones[zoneType]);
 609
 610                 this.loaderService.activate();
 611                 this.compositionGraphZoneUtils.createZoneInstanceFromLeftPalette(zoneType, paletteComponent.type).subscribe((zoneInstance: ZoneInstance) => {
 612                     this.loaderService.deactivate();
 613                     this.compositionGraphZoneUtils.addInstanceToZone(this.zones[zoneInstance.type], zoneInstance, true);
 614                     this.compositionGraphZoneUtils.createPaletteToZoneAnimation(startPosition, zoneType, zoneInstance);
 615                 }, (error) => {
 616                     this.loaderService.deactivate();
 617                 });
 618             });
 619
 620         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_PALETTE_COMPONENT_HOVER_OUT, () => {
 621             this._cy.emit('hidehandles');
 622             this.matchCapabilitiesRequirementsUtils.resetFadedNodes(this._cy);
 623         });
 624
 625         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_PALETTE_COMPONENT_DRAG_START, (dragElement, dragComponent) => {
 626             this.dragElement = dragElement;
 627             this.dragComponent = ComponentInstanceFactory.createComponentInstanceFromComponent(dragComponent, this.workspaceService.metadata.categories[0].useServiceSubstitutionForNestedServices);
 628         });
 629
 630         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_PALETTE_COMPONENT_DRAG_ACTION, (position: Point) => {
 631             const draggedElement = document.getElementById('draggable_element');
 632             draggedElement.className = this.compositionGraphPaletteUtils.isDragValid(this._cy, position) ? 'valid-drag' : 'invalid-drag';
 633         });
 634
 635         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_PALETTE_COMPONENT_DROP, (event: DndDropEvent) => {
 636             this.onDrop(event);
 637         });
 638
 639         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_COMPONENT_INSTANCE_NAME_CHANGED, (component: ComponentInstance) => {
 640             const selectedNode = this._cy.getElementById(component.uniqueId);
 641             selectedNode.data().componentInstance.name = component.name;
 642             selectedNode.data('name', component.name); // used for tooltip
 643             selectedNode.data('displayName', selectedNode.data().getDisplayName()); // abbreviated
 644         });
 645
 646         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_DELETE_COMPONENT_INSTANCE, (componentInstanceId: string) => {
 647             const nodeToDelete = this._cy.getElementById(componentInstanceId);
 648             this.nodesGraphUtils.deleteNode(this._cy, this.topologyTemplate, nodeToDelete);
 649             this.selectTopologyTemplate();
 650         });
 651
 652         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_DELETE_ZONE_INSTANCE, (deletedInstance: UIZoneInstanceObject) => {
 653             this.deleteZoneInstance(deletedInstance);
 654         });
 655
 656         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_DELETE_COMPONENT_INSTANCE_SUCCESS, (componentInstanceId: string) => {
 657             if (!_.isEmpty(this.zones)) {
 658                 this.compositionGraphZoneUtils.updateTargetsOrMembersOnCanvasDelete(componentInstanceId, this.zones, ZoneInstanceAssignmentType.COMPONENT_INSTANCES);
 659             }
 660         });
 661
 662         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_DELETE_EDGE, (releaseLoading: boolean, linksToDelete: Cy.CollectionEdges) => {
 663             this.compositionGraphLinkUtils.deleteLink(this._cy, this.topologyTemplate, releaseLoading, linksToDelete);
 664         });
 665
 666         this.eventListenerService.registerObserverCallback(GRAPH_EVENTS.ON_VERSION_CHANGED, (component: ComponentInstance) => {
 667             // Remove everything from graph and reload it all
 668             this._cy.elements().remove();
 669             this.loadCompositionData();
 670             setTimeout(() => { this._cy.getElementById(component.uniqueId).select(); }, 1000);
 671             this.selectComponentInstance(component);
 672         });
 673         this.eventListenerService.registerObserverCallback(DEPENDENCY_EVENTS.ON_DEPENDENCY_CHANGE, (ischecked: boolean) => {
 674             if (ischecked) {
 675                 this._cy.$('node:selected').addClass('dependent');
 676             } else {
 677                 // due to defect in cytoscape, just changing the class does not replace the icon, and i need to revert to original icon with no markings.
 678                 this._cy.$('node:selected').removeClass('dependent');
 679                 this._cy.$('node:selected').style({'background-image': this._cy.$('node:selected').data('originalImg')});
 680             }
 681         });
 682     }
 683     private createLinkFromMenu = (): void => {
 684         this.saveChangedCapabilityProperties().then(() => {
 685             this.compositionGraphLinkUtils.createLinkFromMenu(this._cy, this.connectionWizardService.selectedMatch);
 686         });
 687     }
 688
 689     private deleteRelation = (link: Cy.CollectionEdges) => {
 690         // if multiple edges selected, delete the VL itself so edges get deleted automatically
 691         if (this._cy.$('edge:selected').length > 1) {
 692             this.nodesGraphUtils.deleteNode(this._cy, this.topologyTemplate, this._cy.$('node:selected'));
 693         } else {
 694             this.compositionGraphLinkUtils.deleteLink(this._cy, this.topologyTemplate, true, link);
 695         }
 696     }
 697
 698     private viewRelation = (link: Cy.CollectionEdges) => {
 699
 700         const linkData = link.data();
 701         const sourceNode: CompositionCiNodeBase = link.source().data();
 702         const targetNode: CompositionCiNodeBase = link.target().data();
 703         const relationship: Relationship = linkData.relation.relationships[0];
 704
 705         this.compositionGraphLinkUtils.getRelationRequirementCapability(relationship, sourceNode.componentInstance, targetNode.componentInstance).then((objReqCap) => {
 706             const capability = objReqCap.capability;
 707             const requirement = objReqCap.requirement;
 708
 709             this.connectionWizardService.connectRelationModel = new ConnectRelationModel(sourceNode, targetNode, []);
 710             this.connectionWizardService.selectedMatch = new Match(requirement, capability, true, linkData.source, linkData.target);
 711             this.connectionWizardService.selectedMatch.relationship = relationship;
 712
 713             const title = `Connection Properties`;
 714             const saveButton: ButtonModel = new ButtonModel('Save', 'blue', () => {
 715                 this.saveChangedCapabilityProperties().then(() => {
 716                     this.modalService.closeCurrentModal();
 717                 });
 718             });
 719             const cancelButton: ButtonModel = new ButtonModel('Cancel', 'white', () => {
 720                 this.modalService.closeCurrentModal();
 721             });
 722             const modal = new ModalModel('xl', title, '', [saveButton, cancelButton]);
 723             const modalInstance = this.modalService.createCustomModal(modal);
 724             this.modalService.addDynamicContentToModal(modalInstance, ConnectionPropertiesViewComponent);
 725             modalInstance.instance.open();
 726
 727             new Promise((resolve) => {
 728                 if (!this.connectionWizardService.selectedMatch.capability.properties) {
 729                     this.componentInstanceService.getInstanceCapabilityProperties(this.topologyTemplateType, this.topologyTemplateId, linkData.target, capability)
 730                         .subscribe(() => {
 731                             resolve();
 732                         }, () => { /* do nothing */ });
 733                 } else {
 734                     resolve();
 735                 }
 736             }).then(() => {
 737                 this.modalService.addDynamicContentToModal(modalInstance, ConnectionPropertiesViewComponent);
 738             });
 739         }, () => { /* do nothing */ });
 740     }
 741
 742     private openModifyLinkMenu = (linkMenuObject: LinkMenu, $event) => {
 743
 744         const menuConfig: menuItem[] = [{
 745             text: 'View',
 746             iconName: 'eye-o',
 747             iconType: 'common',
 748             iconMode: 'secondary',
 749             iconSize: 'small',
 750             type: '',
 751             action: () => this.viewRelation(linkMenuObject.link as Cy.CollectionEdges)
 752         }];
 753
 754         if (!this.isViewOnly()) {
 755             menuConfig.push({
 756                 text: 'Delete',
 757                 iconName: 'trash-o',
 758                 iconType: 'common',
 759                 iconMode: 'secondary',
 760                 iconSize: 'small',
 761                 type: '',
 762                 action: () => this.deleteRelation(linkMenuObject.link as Cy.CollectionEdges)
 763             });
 764         }
 765         this.simplePopupMenuService.openBaseMenu(menuConfig, {
 766             x: $event.originalEvent.x,
 767             y: $event.originalEvent.y
 768         });
 769     }
 770
 771 }