| /**
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| * Copyright (c) 2013-2021 Angelo ZERR. and others
|
| * All rights reserved. This program and the accompanying materials
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| * are made available under the terms of the Eclipse Public License 2.0
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| * which accompanies this distribution, and is available at
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| * https://www.eclipse.org/legal/epl-2.0/
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| *
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| * SPDX-License-Identifier: EPL-2.0
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| *
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| * Contributors:
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| * Angelo Zerr <angelo.zerr@gmail.com> - initial API and implementation
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| */ |
| package org.eclipse.wst.json.ui.internal.text;
|
|
|
| import org.eclipse.jface.preference.IPreferenceStore;
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| import org.eclipse.jface.text.BadLocationException;
|
| import org.eclipse.jface.text.IDocument;
|
| import org.eclipse.jface.text.link.ILinkedModeListener;
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| import org.eclipse.jface.text.link.LinkedModeModel;
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| import org.eclipse.jface.text.link.LinkedModeUI.ExitFlags;
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| import org.eclipse.jface.text.link.LinkedModeUI.IExitPolicy;
|
| import org.eclipse.jface.text.source.ISourceViewer;
|
| import org.eclipse.jface.util.IPropertyChangeListener;
|
| import org.eclipse.jface.util.PropertyChangeEvent;
|
| import org.eclipse.swt.events.VerifyEvent;
|
| import org.eclipse.wst.json.ui.internal.JSONUIPlugin;
|
| import org.eclipse.wst.json.ui.internal.preferences.JSONUIPreferenceNames;
|
| import org.eclipse.wst.sse.ui.typing.AbstractCharacterPairInserter;
|
|
|
| /**
|
| * Character pair inserter for JSON to auto close JSON character like '{', '['.
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| *
|
| */
|
| public class JSONCharacterPairInserter extends AbstractCharacterPairInserter implements IPropertyChangeListener {
|
|
|
| private boolean fCloseStrings;
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| private boolean fCloseBrackets;
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| private boolean fCloseBraces;
|
|
|
| public boolean hasPair(char c) {
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| switch (c) {
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| case '"':
|
| case '\'':
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| case '[':
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| case '{':
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| return true;
|
| default:
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| return false;
|
| }
|
| }
|
|
|
| @Override
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| public void initialize() {
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| IPreferenceStore store = JSONUIPlugin.getDefault().getPreferenceStore();
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| fCloseStrings = store.getBoolean(JSONUIPreferenceNames.TYPING_CLOSE_STRINGS);
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| fCloseBraces = store.getBoolean(JSONUIPreferenceNames.TYPING_CLOSE_BRACES);
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| fCloseBrackets = store.getBoolean(JSONUIPreferenceNames.TYPING_CLOSE_BRACKETS);
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| store.addPropertyChangeListener(this);
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| }
|
|
|
| protected char getPair(char c) {
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| switch (c) {
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| case '\'':
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| case '"':
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| return c;
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| case '[':
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| return ']';
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| case '{':
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| return '}';
|
| default:
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| throw new IllegalArgumentException();
|
| }
|
| }
|
|
|
| class ExitPolicy implements IExitPolicy {
|
|
|
| private char fExit;
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| private char fEscape;
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| private IDocument fDocument;
|
|
|
| public ExitPolicy(char exit, char escape, IDocument document) {
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| fExit = exit;
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| fEscape = escape;
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| fDocument = document;
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| }
|
|
|
| public ExitFlags doExit(LinkedModeModel model, VerifyEvent event,
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| int offset, int length) {
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| if (!isMasked(offset)) {
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| if (event.character == fExit)
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| return new ExitFlags(ILinkedModeListener.UPDATE_CARET,
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| false);
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| if (event.character == '\r' || event.character == '\n'
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| && offset > 0) {
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| try {
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| if (fDocument.getChar(offset - 1) == '{') {
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| return new ExitFlags(ILinkedModeListener.EXIT_ALL,
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| true);
|
| }
|
| } catch (BadLocationException e) {
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| }
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| }
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| }
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| return null;
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| }
|
|
|
| private boolean isMasked(int offset) {
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| try {
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| return fEscape == fDocument.getChar(offset - 1);
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| } catch (BadLocationException e) {
|
| }
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| return false;
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| }
|
| }
|
|
|
| protected IExitPolicy getExitPolicy(char exit, char escape,
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| IDocument document) {
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| return new ExitPolicy(exit, escape, document);
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| }
|
| public void propertyChange(PropertyChangeEvent event) {
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| if (JSONUIPreferenceNames.TYPING_CLOSE_BRACKETS.equals(event.getProperty()))
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| fCloseBrackets = ((Boolean) event.getNewValue()).booleanValue();
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| else if (JSONUIPreferenceNames.TYPING_CLOSE_BRACES.equals(event.getProperty()))
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| fCloseBraces = ((Boolean) event.getNewValue()).booleanValue();
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| else if (JSONUIPreferenceNames.TYPING_CLOSE_STRINGS.equals(event.getProperty()))
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| fCloseStrings = ((Boolean) event.getNewValue()).booleanValue();
|
| }
|
|
|
| @Override
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| protected boolean shouldPair(ISourceViewer viewer, char c) {
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| switch (c) {
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| case '\'' :
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| case '"' :
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| return fCloseStrings;
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| case '[' :
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| case '(' :
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| return fCloseBrackets;
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| case '{' :
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| return fCloseBraces;
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| default :
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| return false;
|
| }
|
| }
|
| }
|