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Collect model documentation for completion items in the resolve step Fixes eclipse#616, redhat-developer/vscode-xml#679 Signed-off-by: David Thompson <[email protected]>
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108 changes: 108 additions & 0 deletions
108
...inx/extensions/contentmodel/participants/completion/AttributeValueCompletionResolver.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2022 Red Hat Inc. and others. | ||
| * All rights reserved. This program and the accompanying materials | ||
| * which accompanies this distribution, and is available at | ||
| * http://www.eclipse.org/legal/epl-v20.html | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Red Hat Inc. - initial API and implementation | ||
| *******************************************************************************/ | ||
| package org.eclipse.lemminx.extensions.contentmodel.participants.completion; | ||
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| import java.util.Collection; | ||
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| import org.eclipse.lemminx.dom.DOMAttr; | ||
| import org.eclipse.lemminx.dom.DOMDocument; | ||
| import org.eclipse.lemminx.dom.DOMElement; | ||
| import org.eclipse.lemminx.dom.DOMNode; | ||
| import org.eclipse.lemminx.extensions.contentmodel.model.CMAttributeDeclaration; | ||
| import org.eclipse.lemminx.extensions.contentmodel.model.CMDocument; | ||
| import org.eclipse.lemminx.extensions.contentmodel.model.CMElementDeclaration; | ||
| import org.eclipse.lemminx.extensions.contentmodel.model.ContentModelManager; | ||
| import org.eclipse.lemminx.extensions.contentmodel.utils.XMLGenerator; | ||
| import org.eclipse.lemminx.services.extensions.completion.ICompletionItemResolveParticipant; | ||
| import org.eclipse.lemminx.services.extensions.completion.ICompletionItemResolverRequest; | ||
| import org.eclipse.lemminx.uriresolver.CacheResourceDownloadingException; | ||
| import org.eclipse.lsp4j.CompletionItem; | ||
| import org.eclipse.lsp4j.MarkupContent; | ||
| import org.eclipse.lsp4j.jsonrpc.CancelChecker; | ||
|
|
||
| /** | ||
| * Resolves the documentation for the completion of the attribute value from the | ||
| * content model. | ||
| * | ||
| */ | ||
| public class AttributeValueCompletionResolver implements ICompletionItemResolveParticipant { | ||
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| public static final String PARTICIPANT_ID = AttributeValueCompletionResolver.class.getName(); | ||
| public static final String OFFSET_KEY = "OFFSET"; | ||
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| @Override | ||
| public CompletionItem resolveCompletionItem(ICompletionItemResolverRequest request, CancelChecker cancelChecker) { | ||
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| CompletionItem toResolve = request.getUnresolved(); | ||
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| DOMDocument document = request.getDocument(); | ||
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| String offsetString = request.getDataProperty(OFFSET_KEY); | ||
| Integer offset = null; | ||
| if (document == null || offsetString == null) { | ||
| return toResolve; | ||
| } | ||
| try { | ||
| offset = Integer.parseInt(offsetString); | ||
| } catch (NumberFormatException e) { | ||
| return toResolve; | ||
| } | ||
|
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| DOMAttr attr = document.findAttrAt(offset); | ||
| if (attr == null) { | ||
| return toResolve; | ||
| } | ||
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| DOMNode parentNode = document.findNodeAt(offset); | ||
| if (parentNode == null || !parentNode.isElement()) { | ||
| return toResolve; | ||
| } | ||
| DOMElement parentElement = (DOMElement) parentNode; | ||
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| collectDocumentationFromContentModel(request, toResolve, parentElement, attr); | ||
| return toResolve; | ||
| } | ||
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| private void collectDocumentationFromContentModel(ICompletionItemResolverRequest request, CompletionItem toResolve, | ||
| DOMElement parentElement, DOMAttr attr) { | ||
| String attributeName = attr.getName(); | ||
| String attributeValue = toResolve.getLabel(); | ||
| try { | ||
| ContentModelManager contentModelManager = request.getComponent(ContentModelManager.class); | ||
| Collection<CMDocument> cmDocuments = contentModelManager.findCMDocument(parentElement); | ||
| for (CMDocument cmDocument : cmDocuments) { | ||
| CMElementDeclaration cmElement = cmDocument.findCMElement(parentElement, | ||
| parentElement.getNamespaceURI()); | ||
| if (cmElement != null) { | ||
| MarkupContent documentation = getDocumentationForAttributeValue(cmElement, attributeName, | ||
| attributeValue, request); | ||
| if (documentation != null) { | ||
| toResolve.setDocumentation(documentation); | ||
| return; | ||
| } | ||
| } | ||
| } | ||
| } catch (CacheResourceDownloadingException e) { | ||
| } | ||
| } | ||
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| private MarkupContent getDocumentationForAttributeValue(CMElementDeclaration cmElement, String attributeName, | ||
| String attributeValue, ICompletionItemResolverRequest request) { | ||
| CMAttributeDeclaration cmAttribute = cmElement.findCMAttribute(attributeName); | ||
| if (cmAttribute != null) { | ||
| return XMLGenerator.createMarkupContent(cmAttribute, attributeValue, cmElement, | ||
| request); | ||
| } | ||
| return null; | ||
| } | ||
|
|
||
| } |
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