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[3882] Add a new tree event to support non explorer tree descriptions
+ an example of tree representation for Domain elements Bug: #3882 Signed-off-by: Jerome Gout <[email protected]>
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142 changes: 142 additions & 0 deletions
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...n/java/org/eclipse/sirius/web/application/views/tree/DomainExpandAllTreePathProvider.java
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| Original file line number | Diff line number | Diff line change |
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| /******************************************************************************* | ||
| * Copyright (c) 2024 Obeo. | ||
| * This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v2.0 | ||
| * which accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Obeo - initial API and implementation | ||
| *******************************************************************************/ | ||
| package org.eclipse.sirius.web.application.views.tree; | ||
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| import java.util.LinkedHashSet; | ||
| import java.util.List; | ||
| import java.util.Objects; | ||
| import java.util.Set; | ||
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| import org.eclipse.emf.ecore.EObject; | ||
| import org.eclipse.sirius.components.collaborative.trees.api.IExpandAllTreePathProvider; | ||
| import org.eclipse.sirius.components.collaborative.trees.dto.ExpandAllTreePathInput; | ||
| import org.eclipse.sirius.components.collaborative.trees.dto.ExpandAllTreePathSuccessPayload; | ||
| import org.eclipse.sirius.components.collaborative.trees.dto.TreePath; | ||
| import org.eclipse.sirius.components.core.api.IContentService; | ||
| import org.eclipse.sirius.components.core.api.IEditingContext; | ||
| import org.eclipse.sirius.components.core.api.IIdentityService; | ||
| import org.eclipse.sirius.components.core.api.IPayload; | ||
| import org.eclipse.sirius.components.core.api.IRepresentationDescriptionSearchService; | ||
| import org.eclipse.sirius.components.domain.Entity; | ||
| import org.eclipse.sirius.components.representations.VariableManager; | ||
| import org.eclipse.sirius.components.trees.Tree; | ||
| import org.eclipse.sirius.components.trees.description.TreeDescription; | ||
| import org.eclipse.sirius.web.application.views.explorer.services.api.IExplorerNavigationService; | ||
| import org.eclipse.sirius.web.domain.boundedcontexts.representationdata.services.api.IRepresentationDataSearchService; | ||
| import org.springframework.stereotype.Service; | ||
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||
| /** | ||
| * ExpandAll tree path provider for Domain tree representation example. | ||
| * | ||
| * @author Jerome Gout | ||
| */ | ||
| @Service | ||
| public class DomainExpandAllTreePathProvider implements IExpandAllTreePathProvider { | ||
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| private final IIdentityService identityService; | ||
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| private final IContentService contentService; | ||
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| private final IExplorerNavigationService explorerNavigationService; | ||
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| private final IRepresentationDataSearchService representationDataSearchService; | ||
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| private final IRepresentationDescriptionSearchService representationDescriptionSearchService; | ||
| public DomainExpandAllTreePathProvider(IIdentityService identityService, IContentService contentService, IExplorerNavigationService explorerNavigationService, IRepresentationDescriptionSearchService representationDescriptionSearchService, IRepresentationDataSearchService representationDataSearchService) { | ||
| this.identityService = Objects.requireNonNull(identityService); | ||
| this.contentService = Objects.requireNonNull(contentService); | ||
| this.explorerNavigationService = Objects.requireNonNull(explorerNavigationService); | ||
| this.representationDescriptionSearchService = Objects.requireNonNull(representationDescriptionSearchService); | ||
| this.representationDataSearchService = Objects.requireNonNull(representationDataSearchService); | ||
| } | ||
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| @Override | ||
| public boolean canHandle(Tree tree) { | ||
| return tree.getDescriptionId().equals(DomainTreeDescriptionProvider.DESCRIPTION_ID); | ||
| } | ||
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| @Override | ||
| public IPayload handle(IEditingContext editingContext, Tree tree, ExpandAllTreePathInput input) { | ||
| int maxDepth = 0; | ||
| String treeItemId = input.treeItemId(); | ||
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| Set<String> treeItemIdsToExpand = new LinkedHashSet<>(); | ||
| var object = this.getTreeItemObject(editingContext, tree, treeItemId); | ||
| if (object instanceof EObject || treeItemId.startsWith(DomainTreeDescriptionProvider.SETTING)) { | ||
| // We need to get the current depth of the tree item | ||
| var itemAncestors = this.explorerNavigationService.getAncestors(editingContext, tree, treeItemId); | ||
| maxDepth = itemAncestors.size(); | ||
| maxDepth = this.addAllContents(editingContext, treeItemId, maxDepth, treeItemIdsToExpand, tree); | ||
| } | ||
| return new ExpandAllTreePathSuccessPayload(input.id(), new TreePath(treeItemIdsToExpand.stream().toList(), maxDepth)); | ||
| } | ||
|
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| private int addAllContents(IEditingContext editingContext, String treeItemId, int depth, Set<String> treeItemIdsToExpand, Tree tree) { | ||
| var depthConsidered = depth; | ||
| var object = this.getTreeItemObject(editingContext, tree, treeItemId); | ||
| if (treeItemId.startsWith(DomainTreeDescriptionProvider.SETTING) && object instanceof List<?> list) { | ||
| treeItemIdsToExpand.add(treeItemId); | ||
| for (var child : list) { | ||
| String childId = this.identityService.getId(child); | ||
| treeItemIdsToExpand.add(childId); | ||
| var childTreePathMaxDepth = depth + 1; | ||
| childTreePathMaxDepth = this.addAllContents(editingContext, childId, childTreePathMaxDepth, treeItemIdsToExpand, tree); | ||
| depthConsidered = Math.max(depthConsidered, childTreePathMaxDepth); | ||
| } | ||
| } else if (object instanceof EObject eObject) { | ||
| if (object instanceof Entity entity) { | ||
| // an Entity has a virtual node for its super types, this node should be a child of the Entity | ||
| var id = DomainTreeDescriptionProvider.SETTING + this.identityService.getId(entity) + DomainTreeDescriptionProvider.SETTING_ID_SEPARATOR + "superTypes"; | ||
| treeItemIdsToExpand.add(id); | ||
| var superTypes = entity.getSuperTypes(); | ||
| if (superTypes.size() > 0) { | ||
| depthConsidered = Math.max(depthConsidered, depth + 2); | ||
| } else { | ||
| depthConsidered = Math.max(depthConsidered, depth + 1); | ||
| } | ||
| } | ||
| var contents = this.contentService.getContents(eObject); | ||
| if (!contents.isEmpty()) { | ||
| treeItemIdsToExpand.add(treeItemId); | ||
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| for (var child : contents) { | ||
| String childId = this.identityService.getId(child); | ||
| treeItemIdsToExpand.add(childId); | ||
| var childTreePathMaxDepth = depth + 1; | ||
| childTreePathMaxDepth = this.addAllContents(editingContext, childId, childTreePathMaxDepth, treeItemIdsToExpand, tree); | ||
| depthConsidered = Math.max(depthConsidered, childTreePathMaxDepth); | ||
| } | ||
| } else if (this.representationDataSearchService.existAnyRepresentationForTargetObjectId(treeItemId)) { | ||
| treeItemIdsToExpand.add(treeItemId); | ||
| depthConsidered = Math.max(depthConsidered, depth + 1); | ||
| } | ||
| } | ||
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| return depthConsidered; | ||
| } | ||
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| private Object getTreeItemObject(IEditingContext editingContext, Tree tree, String treeItemId) { | ||
| var optionalTreeDescription = this.representationDescriptionSearchService.findById(editingContext, tree.getDescriptionId()) | ||
| .filter(TreeDescription.class::isInstance) | ||
| .map(TreeDescription.class::cast); | ||
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| if (optionalTreeDescription.isPresent()) { | ||
| var variableManager = new VariableManager(); | ||
| variableManager.put(IEditingContext.EDITING_CONTEXT, editingContext); | ||
| variableManager.put(TreeDescription.ID, treeItemId); | ||
| return optionalTreeDescription.get().getTreeItemObjectProvider().apply(variableManager); | ||
| } | ||
| return null; | ||
| } | ||
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| } |
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