Add support for textDocument/linkedEditingRange

Fixes #987

Signed-off-by: azerr <[email protected]>

org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/XMLTextDocumentService.java

@@ -80,6 +80,8 @@
 import org.eclipse.lsp4j.FoldingRangeRequestParams;
 import org.eclipse.lsp4j.Hover;
 import org.eclipse.lsp4j.HoverParams;
+import org.eclipse.lsp4j.LinkedEditingRangeParams;
+import org.eclipse.lsp4j.LinkedEditingRanges;
 import org.eclipse.lsp4j.Location;
 import org.eclipse.lsp4j.LocationLink;
 import org.eclipse.lsp4j.PublishDiagnosticsParams;
@@ -468,6 +470,12 @@ public CompletableFuture<List<SelectionRange>> selectionRange(SelectionRangePara
 		});
 	}
 
+	public CompletableFuture<LinkedEditingRanges> linkedEditingRange(LinkedEditingRangeParams params) {
+		return computeDOMAsync(params.getTextDocument(), (cancelChecker, xmlDocument) -> {
+			return getXMLLanguageService().findLinkedEditingRanges(xmlDocument, params.getPosition(), cancelChecker);
+		});
+	}
+
 	@Override
 	public void didSave(DidSaveTextDocumentParams params) {
 		computeAsync((monitor) -> {

org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/commons/snippets/SnippetRegistry.java

@@ -263,7 +263,7 @@ public List<CompletionItem> getCompletionItems(Range replaceRange, String lineDe
 					range = new Range(replaceRange.getStart(), end);
 				}
 			}
-			item.setTextEdit(new TextEdit(range, insertText));
+			item.setTextEdit(Either.forLeft(new TextEdit(range, insertText)));
 			item.setInsertTextFormat(InsertTextFormat.Snippet);
 			item.setSortText(snippet.getSortText());
 			return item;

org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/dom/DOMElement.java

@@ -287,12 +287,16 @@ public boolean isInStartTag(int offset) {
 	}
 
 	public boolean isInEndTag(int offset) {
+		return isInEndTag(offset, false);
+	}
+
+	public boolean isInEndTag(int offset, boolean afterBackSlash) {
 		if (endTagOpenOffset == NULL_VALUE) {
 			// case >|
 			return false;
 		}
-		if (offset > endTagOpenOffset && offset < getEnd()) {
-			// case <\bean | >
+		if (offset > endTagOpenOffset + (afterBackSlash ? 1 : 0) && offset < getEnd()) {
+			// case </bean | >
 			return true;
 		}
 		return false;

org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/extensions/contentmodel/participants/ContentModelCompletionParticipant.java

@@ -40,6 +40,7 @@
 import org.eclipse.lsp4j.Range;
 import org.eclipse.lsp4j.TextEdit;
 import org.eclipse.lsp4j.jsonrpc.CancelChecker;
+import org.eclipse.lsp4j.jsonrpc.messages.Either;
 import org.w3c.dom.Document;
 import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;
@@ -219,7 +220,7 @@ private static void addTagName(NodeList list, Set<String> tags, ICompletionReque
 						item.setKind(CompletionItemKind.Property);
 						item.setFilterText(request.getFilterForStartTagName(tagName));
 						String xml = elt.getOwnerDocument().getText().substring(elt.getStart(), elt.getEnd());
-						item.setTextEdit(new TextEdit(request.getReplaceRange(), xml));
+						item.setTextEdit(Either.forLeft(new TextEdit(request.getReplaceRange(), xml)));
 						response.addCompletionItem(item);
 						tags.add(item.getLabel());
 					}
@@ -250,7 +251,7 @@ private static void addCompletionItem(CMElementDeclaration elementDeclaration, D
 		item.setDocumentation(documentation);
 		String xml = generator.generate(elementDeclaration, prefix,
 				isGenerateEndTag(request.getNode(), request.getOffset(), label));
-		item.setTextEdit(new TextEdit(request.getReplaceRange(), xml));
+		item.setTextEdit(Either.forLeft(new TextEdit(request.getReplaceRange(), xml)));
 		item.setInsertTextFormat(InsertTextFormat.Snippet);
 		response.addCompletionItem(item, true);
 	}
@@ -349,7 +350,7 @@ private void fillAttributeValuesWithCMAttributeDeclarations(CMElementDeclaration
 				item.setLabel(value);
 				item.setKind(CompletionItemKind.Value);
 				item.setFilterText(insertText);
-				item.setTextEdit(new TextEdit(fullRange, insertText));
+				item.setTextEdit(Either.forLeft(new TextEdit(fullRange, insertText)));
 				MarkupContent documentation = XMLGenerator.createMarkupContent(cmAttribute, value, cmElement, request);
 				item.setDocumentation(documentation);
 				response.addCompletionItem(item);
@@ -390,7 +391,7 @@ public void onXMLContent(ICompletionRequest request, ICompletionResponse respons
 							item.setLabel(value);
 							item.setKind(CompletionItemKind.Value);
 							item.setFilterText(tokenStart + insertText);
-							item.setTextEdit(new TextEdit(fullRange, insertText));
+							item.setTextEdit(Either.forLeft(new TextEdit(fullRange, insertText)));
 							MarkupContent documentation = XMLGenerator.createMarkupContent(cmElement, value, request);
 							item.setDocumentation(documentation);
 							response.addCompletionItem(item);

org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/extensions/entities/participants/EntitiesCompletionParticipant.java

@@ -36,6 +36,7 @@
 import org.eclipse.lsp4j.Range;
 import org.eclipse.lsp4j.TextEdit;
 import org.eclipse.lsp4j.jsonrpc.CancelChecker;
+import org.eclipse.lsp4j.jsonrpc.messages.Either;
 import org.w3c.dom.Entity;
 import org.w3c.dom.NamedNodeMap;
 
@@ -143,7 +144,7 @@ private static void fillCompletion(String name, MarkupContent documentation, Ran
 		item.setInsertTextFormat(InsertTextFormat.PlainText);
 		String insertText = entityName;
 		item.setFilterText(insertText);
-		item.setTextEdit(new TextEdit(entityRange, insertText));
+		item.setTextEdit(Either.forLeft(new TextEdit(entityRange, insertText)));
 		item.setDocumentation(documentation);
 		response.addCompletionItem(item);
 	}

org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/extensions/general/completion/FilePathCompletionParticipant.java

@@ -40,6 +40,7 @@
 import org.eclipse.lsp4j.Range;
 import org.eclipse.lsp4j.TextEdit;
 import org.eclipse.lsp4j.jsonrpc.CancelChecker;
+import org.eclipse.lsp4j.jsonrpc.messages.Either;
 
 /**
  * Extension to support completion for file, folder path in:
@@ -73,14 +74,15 @@ public class FilePathCompletionParticipant extends CompletionParticipantAdapter
 	private static final Logger LOGGER = Logger.getLogger(FilePathCompletionParticipant.class.getName());
 
 	@Override
-	public void onAttributeValue(String value, ICompletionRequest request, ICompletionResponse response, CancelChecker cancelChecker)
-			throws Exception {
+	public void onAttributeValue(String value, ICompletionRequest request, ICompletionResponse response,
+			CancelChecker cancelChecker) throws Exception {
 		// File path completion on attribute value
 		addCompletionItems(value, request, response);
 	}
 
 	@Override
-	public void onDTDSystemId(String value, ICompletionRequest request, ICompletionResponse response, CancelChecker cancelChecker) throws Exception {
+	public void onDTDSystemId(String value, ICompletionRequest request, ICompletionResponse response,
+			CancelChecker cancelChecker) throws Exception {
 		// File path completion on DTD DOCTYPE SYSTEM
 		addCompletionItems(value, request, response);
 	}
@@ -253,7 +255,7 @@ private static void createFilePathCompletionItem(File f, Range replaceRange, ICo
 
 		item.setSortText(CompletionSortTextHelper.getSortText(kind));
 		item.setFilterText(insertText);
-		item.setTextEdit(new TextEdit(replaceRange, insertText));
+		item.setTextEdit(Either.forLeft(new TextEdit(replaceRange, insertText)));
 		response.addCompletionItem(item);
 	}
 

org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/extensions/prolog/PrologModel.java

@@ -14,6 +14,7 @@
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
+
 import org.eclipse.lemminx.commons.BadLocationException;
 import org.eclipse.lemminx.dom.DOMAttr;
 import org.eclipse.lemminx.dom.DOMDocument;
@@ -29,6 +30,7 @@
 import org.eclipse.lsp4j.MarkupKind;
 import org.eclipse.lsp4j.Range;
 import org.eclipse.lsp4j.TextEdit;
+import org.eclipse.lsp4j.jsonrpc.messages.Either;
 import org.w3c.dom.NamedNodeMap;
 
 import com.google.common.base.Charsets;
@@ -160,7 +162,7 @@ private static void createCompletionItemsForValues(Collection<String> enumeratio
 			item.setLabel(option);
 			item.setFilterText(insertText);
 			item.setKind(CompletionItemKind.Enum);
-			item.setTextEdit(new TextEdit(editRange, insertText));
+			item.setTextEdit(Either.forLeft(new TextEdit(editRange, insertText)));
 			item.setSortText(Integer.toString(sortText));
 			sortText++;
 			response.addCompletionItem(item);

org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/extensions/references/participants/XMLReferencesCompletionParticipant.java

@@ -44,7 +44,7 @@ public void onXMLContent(ICompletionRequest request, ICompletionResponse respons
 				item.setKind(CompletionItemKind.Property);
 				item.setDocumentation(Either.forLeft(label));
 				item.setFilterText(insertText);
-				item.setTextEdit(new TextEdit(range, insertText));
+				item.setTextEdit(Either.forLeft(new TextEdit(range, insertText)));
 				item.setInsertTextFormat(InsertTextFormat.PlainText);
 				response.addCompletionItem(item);
 			});

org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/extensions/xsd/participants/XSDCompletionParticipant.java

@@ -29,6 +29,7 @@
 import org.eclipse.lsp4j.Range;
 import org.eclipse.lsp4j.TextEdit;
 import org.eclipse.lsp4j.jsonrpc.CancelChecker;
+import org.eclipse.lsp4j.jsonrpc.messages.Either;
 
 /**
  * XSD completion for
@@ -42,8 +43,8 @@
 public class XSDCompletionParticipant extends CompletionParticipantAdapter {
 
 	@Override
-	public void onAttributeValue(String valuePrefix, ICompletionRequest request, ICompletionResponse response, CancelChecker cancelChecker)
-			throws Exception {
+	public void onAttributeValue(String valuePrefix, ICompletionRequest request, ICompletionResponse response,
+			CancelChecker cancelChecker) throws Exception {
 		DOMNode node = request.getNode();
 		DOMDocument document = node.getOwnerDocument();
 		if (!DOMUtils.isXSD(document)) {
@@ -67,7 +68,7 @@ public void onAttributeValue(String valuePrefix, ICompletionRequest request, ICo
 						item.setLabel(value);
 						item.setKind(CompletionItemKind.Value);
 						item.setFilterText(insertText);
-						item.setTextEdit(new TextEdit(fullRange, insertText));
+						item.setTextEdit(Either.forLeft(new TextEdit(fullRange, insertText)));
 						response.addCompletionItem(item);
 					});
 			if (bindingType.isSimple()) {
@@ -83,7 +84,7 @@ public void onAttributeValue(String valuePrefix, ICompletionRequest request, ICo
 					item.setLabel(value);
 					item.setKind(CompletionItemKind.Value);
 					item.setFilterText(insertText);
-					item.setTextEdit(new TextEdit(fullRange, insertText));
+					item.setTextEdit(Either.forLeft(new TextEdit(fullRange, insertText)));
 					response.addCompletionItem(item);
 				});
 			}