/*
* DBeaver - Universal Database Manager
* Copyright (C) 2010-2017 Serge Rider (serge@jkiss.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jkiss.dbeaver.ui.editors.xml;
import org.jkiss.dbeaver.Log;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.ITextDoubleClickStrategy;
import org.eclipse.jface.text.ITextViewer;
public class XMLDoubleClickStrategy implements ITextDoubleClickStrategy {
private static final Log log = Log.getLog(XMLDoubleClickStrategy.class);
protected ITextViewer fText;
@Override
public void doubleClicked(ITextViewer part) {
int pos = part.getSelectedRange().x;
if (pos < 0)
return;
fText = part;
if (!selectComment(pos)) {
selectWord(pos);
}
}
protected boolean selectComment(int caretPos) {
IDocument doc = fText.getDocument();
int startPos, endPos;
try {
int pos = caretPos;
char c = ' ';
while (pos >= 0) {
c = doc.getChar(pos);
if (c == '\\') {
pos -= 2;
continue;
}
if (c == Character.LINE_SEPARATOR || c == '\"')
break;
--pos;
}
if (c != '\"')
return false;
startPos = pos;
pos = caretPos;
int length = doc.getLength();
c = ' ';
while (pos < length) {
c = doc.getChar(pos);
if (c == Character.LINE_SEPARATOR || c == '\"')
break;
++pos;
}
if (c != '\"')
return false;
endPos = pos;
int offset = startPos + 1;
int len = endPos - offset;
fText.setSelectedRange(offset, len);
return true;
} catch (BadLocationException e) {
log.debug(e);
}
return false;
}
protected boolean selectWord(int caretPos) {
IDocument doc = fText.getDocument();
int startPos, endPos;
try {
int pos = caretPos;
char c;
while (pos >= 0) {
c = doc.getChar(pos);
if (!Character.isJavaIdentifierPart(c))
break;
--pos;
}
startPos = pos;
pos = caretPos;
int length = doc.getLength();
while (pos < length) {
c = doc.getChar(pos);
if (!Character.isJavaIdentifierPart(c))
break;
++pos;
}
endPos = pos;
selectRange(startPos, endPos);
return true;
} catch (BadLocationException e) {
log.debug(e);
}
return false;
}
private void selectRange(int startPos, int stopPos) {
int offset = startPos + 1;
int length = stopPos - offset;
fText.setSelectedRange(offset, length);
}
}