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New setting to prevent auto self close destroying content
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Adds the setting `xml.completion.autoCloseRemovesContent`,
which defaults to `true` (to preserve existing behaviour).
When the setting is set to `false`,
and the auto close tags funcitonality is enabled,
`<bbb />` and `</aaa>` won't be deleted
when an `/` is inserted at the pipe:

```xml
<aaa |
  <bbb />
</aaa>
```

Closes redhat-developer/vscode-xml#440

Signed-off-by: David Thompson <[email protected]>
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@datho7561
datho7561 committed Apr 30, 2021
1 parent 8aa1653 commit bbe8fb0
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Showing 6 changed files with 120 additions and 26 deletions.
2 changes: 1 addition & 1 deletion org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/XMLLanguageServer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -280,7 +280,7 @@ public long getParentProcessId() {
@Override
public CompletableFuture<AutoCloseTagResponse> closeTag(TextDocumentPositionParams params) {
return xmlTextDocumentService.computeDOMAsync(params.getTextDocument(), (cancelChecker, xmlDocument) -> {
return getXMLLanguageService().doAutoClose(xmlDocument, params.getPosition(), cancelChecker);
return getXMLLanguageService().doAutoClose(xmlDocument, params.getPosition(), getSettings().getCompletionSettings(), cancelChecker);
});
}

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14 changes: 5 additions & 9 deletions org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/services/XMLCompletions.java
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Expand Up @@ -44,6 +44,7 @@
import org.eclipse.lemminx.services.extensions.XMLExtensionsRegistry;
import org.eclipse.lemminx.services.snippets.IXMLSnippetContext;
import org.eclipse.lemminx.settings.SharedSettings;
import org.eclipse.lemminx.settings.XMLCompletionSettings;
import org.eclipse.lemminx.utils.StringUtils;
import org.eclipse.lemminx.utils.XMLPositionUtility;
import org.eclipse.lsp4j.CompletionItem;
Expand Down Expand Up @@ -467,7 +468,7 @@ private boolean isBalanced(DOMNode node) {
return true;
}

public AutoCloseTagResponse doTagComplete(DOMDocument xmlDocument, Position position, CancelChecker cancelChecker) {
public AutoCloseTagResponse doTagComplete(DOMDocument xmlDocument, Position position, XMLCompletionSettings completionSettings, CancelChecker cancelChecker) {
int offset;
try {
offset = xmlDocument.offsetAt(position);
Expand Down Expand Up @@ -521,13 +522,8 @@ public AutoCloseTagResponse doTagComplete(DOMDocument xmlDocument, Position posi
}
}
String text = xmlDocument.getText();
boolean closeBracketAfterSlash = offset < text.length() ? text.charAt(offset) == '>' : false; // After
// the
// slash
// is
// a
// close
// bracket
// After the slash is a close bracket
boolean closeBracketAfterSlash = offset < text.length() ? text.charAt(offset) == '>' : false;

// Case: <a/| ...
if (closeBracketAfterSlash == false) { // no '>' after slash
Expand All @@ -536,7 +532,7 @@ public AutoCloseTagResponse doTagComplete(DOMDocument xmlDocument, Position posi
return null;
}
snippet = ">$0";
if (element1.hasEndTag()) { // Case: <a/| </a>
if (element1.hasEndTag() && completionSettings.isAutoCloseRemovesContent()) { // Case: <a/| </a>
try {
end = xmlDocument.positionAt(element1.getEnd());
} catch (BadLocationException e) {
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15 changes: 8 additions & 7 deletions org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/services/XMLLanguageService.java
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@
import org.eclipse.lemminx.services.extensions.XMLExtensionsRegistry;
import org.eclipse.lemminx.settings.SharedSettings;
import org.eclipse.lemminx.settings.XMLCodeLensSettings;
import org.eclipse.lemminx.settings.XMLCompletionSettings;
import org.eclipse.lemminx.settings.XMLFoldingSettings;
import org.eclipse.lemminx.settings.XMLSymbolSettings;
import org.eclipse.lemminx.uriresolver.CacheResourceDownloadingException;
Expand Down Expand Up @@ -156,7 +157,7 @@ public Hover doHover(DOMDocument xmlDocument, Position position, SharedSettings
return hover.doHover(xmlDocument, position, sharedSettings, cancelChecker);
}

public List<Diagnostic> doDiagnostics(DOMDocument xmlDocument,
public List<Diagnostic> doDiagnostics(DOMDocument xmlDocument,
XMLValidationSettings validationSettings, CancelChecker cancelChecker) {
return diagnostics.doDiagnostics(xmlDocument, validationSettings, cancelChecker);
}
Expand Down Expand Up @@ -257,22 +258,22 @@ public List<CodeAction> doCodeActions(CodeActionContext context, Range range, DO
return codeActions.doCodeActions(context, range, document, sharedSettings);
}

public AutoCloseTagResponse doTagComplete(DOMDocument xmlDocument, Position position) {
return doTagComplete(xmlDocument, position, NULL_CHECKER);
public AutoCloseTagResponse doTagComplete(DOMDocument xmlDocument, XMLCompletionSettings completionSettings, Position position) {
return doTagComplete(xmlDocument, position, completionSettings, NULL_CHECKER);
}

public AutoCloseTagResponse doTagComplete(DOMDocument xmlDocument, Position position, CancelChecker cancelChecker) {
return completions.doTagComplete(xmlDocument, position, cancelChecker);
public AutoCloseTagResponse doTagComplete(DOMDocument xmlDocument, Position position, XMLCompletionSettings completionSettings, CancelChecker cancelChecker) {
return completions.doTagComplete(xmlDocument, position, completionSettings, cancelChecker);
}

public AutoCloseTagResponse doAutoClose(DOMDocument xmlDocument, Position position, CancelChecker cancelChecker) {
public AutoCloseTagResponse doAutoClose(DOMDocument xmlDocument, Position position, XMLCompletionSettings completionSettings, CancelChecker cancelChecker) {
try {
int offset = xmlDocument.offsetAt(position);
String text = xmlDocument.getText();
if (offset > 0) {
char c = text.charAt(offset - 1);
if (c == '>' || c == '/') {
return doTagComplete(xmlDocument, position, cancelChecker);
return doTagComplete(xmlDocument, position, completionSettings, cancelChecker);
}
}
return null;
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34 changes: 28 additions & 6 deletions org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/settings/XMLCompletionSettings.java
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Original file line number Diff line number Diff line change
Expand Up @@ -24,12 +24,15 @@ public class XMLCompletionSettings {

private boolean autoCloseTags;

public XMLCompletionSettings(boolean autoCloseTags) {
private boolean autoCloseRemovesContent;

public XMLCompletionSettings(boolean autoCloseTags, boolean autoCloseRemovesContent) {
this.autoCloseTags = autoCloseTags;
this.autoCloseRemovesContent = autoCloseRemovesContent;
}

public XMLCompletionSettings() {
this(true);
this(true, true);
}

public void setCapabilities(CompletionCapabilities completionCapabilities) {
Expand All @@ -42,7 +45,7 @@ public CompletionCapabilities getCompletionCapabilities() {

/**
* Tag should be autoclosed with an end tag.
*
*
* @param autoCloseTags
*/
public void setAutoCloseTags(boolean autoCloseTags) {
Expand All @@ -51,17 +54,35 @@ public void setAutoCloseTags(boolean autoCloseTags) {

/**
* If tag should be autoclosed with an end tag.
*
*
* @return
*/
public boolean isAutoCloseTags() {
return autoCloseTags;
}

/**
* If turning a start tag into a self closing tag should remove the content of the element
*
* @param autoCloseRemovesContent
*/
public void setAutoCloseRemovesContent(boolean autoCloseRemovesContent) {
this.autoCloseRemovesContent = autoCloseRemovesContent;
}

/**
* Returns true if turning a start tag into a self closing tag should remove the content of the element and false otherwise
*
* @return true if turning a start tag into a self closing tag should remove the content of the element and false otherwise
*/
public boolean isAutoCloseRemovesContent() {
return autoCloseRemovesContent;
}

/**
* Returns <code>true</code> if the client support snippet and
* <code>false</code> otherwise.
*
*
* @return <code>true</code> if the client support snippet and
* <code>false</code> otherwise.
*/
Expand All @@ -74,10 +95,11 @@ public boolean isCompletionSnippetsSupported() {
/**
* Merge only the given completion settings (and not the capability) in the
* settings.
*
*
* @param newCompletion the new settings to merge.
*/
public void merge(XMLCompletionSettings newCompletion) {
this.setAutoCloseTags(newCompletion.isAutoCloseTags());
this.setAutoCloseRemovesContent(newCompletion.isAutoCloseRemovesContent());
}
}
27 changes: 26 additions & 1 deletion org.eclipse.lemminx/src/test/java/org/eclipse/lemminx/XMLAssert.java
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertIterableEquals;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

Expand Down Expand Up @@ -303,6 +304,10 @@ public static CompletionItem c(String label, String newText, Range range, String
}

public static void testTagCompletion(String value, String expected) throws BadLocationException {
testTagCompletion(value, expected, new SharedSettings());
}

public static void testTagCompletion(String value, String expected, SharedSettings settings) throws BadLocationException {
int offset = value.indexOf('|');
value = value.substring(0, offset) + value.substring(offset + 1);

Expand All @@ -312,7 +317,7 @@ public static void testTagCompletion(String value, String expected) throws BadLo
Position position = document.positionAt(offset);
DOMDocument htmlDoc = DOMParser.getInstance().parse(document, ls.getResolverExtensionManager());

AutoCloseTagResponse response = ls.doTagComplete(htmlDoc, position);
AutoCloseTagResponse response = ls.doTagComplete(htmlDoc, settings.getCompletionSettings(), position);
if (expected == null) {
assertNull(response);
return;
Expand All @@ -321,6 +326,26 @@ public static void testTagCompletion(String value, String expected) throws BadLo
assertEquals(expected, actual);
}

public static void testTagCompletion(String value, AutoCloseTagResponse expected, SharedSettings settings) throws BadLocationException {
int offset = value.indexOf('|');
value = value.substring(0, offset) + value.substring(offset + 1);

XMLLanguageService ls = new XMLLanguageService();

TextDocument document = new TextDocument(value, "test://test/test.html");
Position position = document.positionAt(offset);
DOMDocument htmlDoc = DOMParser.getInstance().parse(document, ls.getResolverExtensionManager());

AutoCloseTagResponse actual = ls.doTagComplete(htmlDoc, settings.getCompletionSettings(), position);
if (expected == null) {
assertNull(actual);
return;
}
assertNotNull(actual);
assertEquals(expected.snippet, actual.snippet);
assertEquals(expected.range, actual.range);
}

// ------------------- Diagnostics assert

public static void testDiagnosticsFor(String xml, Diagnostic... expected) {
Expand Down
54 changes: 52 additions & 2 deletions org.eclipse.lemminx/src/test/java/org/eclipse/lemminx/services/XMLCompletionTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@
import java.util.Arrays;
import java.util.List;

import org.eclipse.lemminx.XMLAssert;
import org.eclipse.lemminx.commons.BadLocationException;
import org.eclipse.lemminx.customservice.AutoCloseTagResponse;
import org.eclipse.lemminx.dom.DOMDocument;
Expand Down Expand Up @@ -80,7 +81,7 @@ public void successfulEndTagCompletion() throws BadLocationException {

@Test
public void successfulEndTagCompletionWithIndent() throws BadLocationException {

testCompletionFor("<a></|", 1, c("End with '</a>'", "/a>", r(0, 4, 0, 5), "/a>"));

testCompletionFor(" <a>\r\n" + //
Expand Down Expand Up @@ -185,6 +186,51 @@ public void testAutoCloseEnabledDisabled() throws BadLocationException {
assertAutoCloseEndTagCompletionWithRange("<a/|>Text</a>", null, null);
}

@Test
public void testAutoCloseTagCompletionRemovesContent() throws BadLocationException {
SharedSettings settings = new SharedSettings();
settings.getCompletionSettings().setAutoCloseTags(true);
settings.getCompletionSettings().setAutoCloseRemovesContent(true);


String value = //
"<a/|\n" + //
" <b />\n" + //
"</a>";
AutoCloseTagResponse closeTagResponse = new AutoCloseTagResponse(">$0", r(0, 3, 2, 4));

XMLAssert.testTagCompletion(value, closeTagResponse, settings);
}

@Test
public void testAutoCloseTagCompletionDoesntRemoveContent() throws BadLocationException {
SharedSettings settings = new SharedSettings();
settings.getCompletionSettings().setAutoCloseTags(true);
settings.getCompletionSettings().setAutoCloseRemovesContent(false);

String value = //
"<a/|\n" + //
" <b />\n" + //
"</a>";
AutoCloseTagResponse closeTagResponse = new AutoCloseTagResponse(">$0");

XMLAssert.testTagCompletion(value, closeTagResponse, settings);
}

@Test
public void testAutoCloseTagCompletionWithLeadingTextContent() throws BadLocationException {
SharedSettings settings = new SharedSettings();
settings.getCompletionSettings().setAutoCloseTags(true);
settings.getCompletionSettings().setAutoCloseRemovesContent(true);

String value = //
"<a/|\n" + //
" content\n" + //
"</a>";

XMLAssert.testTagCompletion(value, (AutoCloseTagResponse) null, settings);
}

@Test
public void testnoCDATANPE() {
try {
Expand Down Expand Up @@ -229,6 +275,10 @@ public void assertAutoCloseEndTagCompletion(String xmlText, String expectedTextE
}

public void assertAutoCloseEndTagCompletionWithRange(String xmlText, String expectedTextEdit, Range range) {
assertAutoCloseEndTagCompletionWithRange(xmlText, expectedTextEdit, range, new SharedSettings());
}

public void assertAutoCloseEndTagCompletionWithRange(String xmlText, String expectedTextEdit, Range range, SharedSettings settings) {
int offset = getOffset(xmlText);
DOMDocument xmlDocument = initializeXMLDocument(xmlText, offset);
Position position = null;
Expand All @@ -237,7 +287,7 @@ public void assertAutoCloseEndTagCompletionWithRange(String xmlText, String expe
} catch (Exception e) {
fail("Couldn't get position at offset");
}
AutoCloseTagResponse response = languageService.doTagComplete(xmlDocument, position);
AutoCloseTagResponse response = languageService.doTagComplete(xmlDocument, settings.getCompletionSettings(), position);
if (response == null) {
assertNull(expectedTextEdit);
assertNull(range);
Expand Down

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