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Add code action for RootElementTypeMustMatchDoctypedecl
Signed-off-by: David Kwon <dakwon@redhat.com>
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121 changes: 121 additions & 0 deletions
121
.../contentmodel/participants/codeactions/RootElementTypeMustMatchDoctypedeclCodeAction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2020 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.codeactions; | ||
|
|
||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
|
|
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| import org.eclipse.lemminx.commons.CodeActionFactory; | ||
| import org.eclipse.lemminx.dom.DOMDocument; | ||
| import org.eclipse.lemminx.dom.DOMElement; | ||
| import org.eclipse.lemminx.services.extensions.ICodeActionParticipant; | ||
| import org.eclipse.lemminx.services.extensions.IComponentProvider; | ||
| import org.eclipse.lemminx.settings.XMLFormattingOptions; | ||
| import org.eclipse.lemminx.utils.XMLPositionUtility; | ||
| import org.eclipse.lsp4j.CodeAction; | ||
| import org.eclipse.lsp4j.Diagnostic; | ||
| import org.eclipse.lsp4j.Range; | ||
| import org.eclipse.lsp4j.TextEdit; | ||
|
|
||
| /** | ||
| * Code action for RootElementTypeMustMatchDoctypedecl | ||
| * | ||
| * This class depends on the diagnostic message (Diagnostic#message) to | ||
| * determine the correct root name. | ||
| * | ||
| * This class assumes that the diagnostic message is in this format: | ||
| * Document root element "<current root name>", must match DOCTYPE root "<expected root name>". | ||
| */ | ||
| public class RootElementTypeMustMatchDoctypedeclCodeAction implements ICodeActionParticipant { | ||
|
|
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| @Override | ||
| public void doCodeAction(Diagnostic diagnostic, Range range, DOMDocument document, List<CodeAction> codeActions, | ||
| XMLFormattingOptions formattingSettings, IComponentProvider componentProvider) { | ||
| DOMElement root = document.getDocumentElement(); | ||
| if (root == null) { | ||
| return; | ||
| } | ||
| Range rootStartRange = XMLPositionUtility.selectStartTagName(root); | ||
| if (!range.equals(rootStartRange)) { | ||
| return; | ||
| } | ||
|
|
||
| String currentRootText = getCurrentRoot(diagnostic.getMessage()); | ||
| if (currentRootText == null || !currentRootText.equals(root.getNodeName())) { | ||
| return; | ||
| } | ||
|
|
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| String doctypeRootText = getDoctypeRoot(diagnostic.getMessage()); | ||
| if (doctypeRootText == null) { | ||
| return; | ||
| } | ||
|
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| List<TextEdit> replace= new ArrayList<>(); | ||
| addTextEdits(root, doctypeRootText, replace); | ||
|
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| CodeAction action = CodeActionFactory.replace( | ||
| "Replace with '" + doctypeRootText + "'", | ||
| replace, document.getTextDocument(), diagnostic); | ||
| codeActions.add(action); | ||
| } | ||
|
|
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| private void addTextEdits(DOMElement root, String newText, List<TextEdit> replace) { | ||
| replace.add(new TextEdit(XMLPositionUtility.selectStartTagName(root), newText)); | ||
|
|
||
| if (root.isClosed() && !root.isSelfClosed()) { | ||
| replace.add(new TextEdit(XMLPositionUtility.selectEndTagName(root), newText)); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Returns the current root name, extracted from <code>message</code> | ||
| * | ||
| * The provided <code>message</code> must match this format: | ||
| * ... root element "<current root name>", must match DOCTYPE ... | ||
| * | ||
| * @param message the message to extract the root name from | ||
| * @return the current root name, extracted from <code>message</code> | ||
| */ | ||
| private static String getCurrentRoot(String message) { | ||
| String preText = "root element \""; | ||
| String postText = "\", must match DOCTYPE"; | ||
| int preMatch = message.indexOf(preText); | ||
| if (preMatch < 0) { | ||
| return null; | ||
| } | ||
| int postMatch = message.indexOf(postText); | ||
| if (postMatch < 0) { | ||
| return null; | ||
| } | ||
|
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| return message.substring(preMatch + preText.length(), postMatch); | ||
| } | ||
|
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| /** | ||
| * Returns the doctype root name, extracted from <code>message</code> | ||
| * | ||
| * The provided <code>message</code> must match this format: | ||
| * ... DOCTYPE root "<root name>". | ||
| * | ||
| * @param message the message to extract the root name from | ||
| * @return the DOCTYPE root name, extracted from <code>message</code> | ||
| */ | ||
| private static String getDoctypeRoot(String message) { | ||
| String preText = "DOCTYPE root \""; | ||
| int preMatch = message.indexOf(preText); | ||
| if (preMatch < 0) { | ||
| return null; | ||
| } | ||
| return message.substring(preMatch + preText.length(), message.length() - 2); | ||
| } | ||
|
|
||
| } |
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