/*
* Copyright (c) 2014 Patrick Scheibe
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package de.halirutan.mathematica.codeinsight.surround;
import com.intellij.lang.surroundWith.SurroundDescriptor;
import com.intellij.lang.surroundWith.Surrounder;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiWhiteSpace;
import com.intellij.psi.util.PsiTreeUtil;
import de.halirutan.mathematica.parsing.psi.api.Expression;
import org.jetbrains.annotations.NotNull;
/**
* @author patrick (6/11/14)
*/
public class MathematicaSurroundDescriptor implements SurroundDescriptor {
private static final Surrounder SURROUNDERS[] = {
new FunctionCallSurrounder(),
new ParenthesesSurrounder("(", ")", "Surround with ()"),
new ParenthesesSurrounder("{", "}", "Surround with {}"),
new AnonymousFunctionSurrounder()
// new LocalizationSurrounder("Module"),
// new LocalizationSurrounder("With"),
// new LocalizationSurrounder("Block"),
// new LocalizationSurrounder("Function"),
// new LocalizationSurrounder("Compile")
};
@NotNull
public PsiElement[] getElementsToSurround(PsiFile file, int startOffset, int endOffset) {
return findElementsInRange(file, startOffset, endOffset);
}
@NotNull
public Surrounder[] getSurrounders() {
return SURROUNDERS;
}
@Override
public boolean isExclusive() {
return false;
}
private PsiElement[] findElementsInRange(PsiFile file, int startOffset, int endOffset) {
if (endOffset < startOffset) {
int tmp = endOffset;
endOffset = startOffset;
startOffset = tmp;
}
// adjust start/end
PsiElement element1 = file.findElementAt(startOffset);
PsiElement element2 = file.findElementAt(endOffset - 1);
if (element1 instanceof PsiWhiteSpace) {
startOffset = element1.getTextRange().getEndOffset();
}
if (element2 instanceof PsiWhiteSpace) {
endOffset = element2.getTextRange().getStartOffset();
}
final PsiElement elementAtStart = file.findElementAt(startOffset);
final PsiElement elementAtEnd = file.findElementAt(endOffset - 1);
if (elementAtStart != null && elementAtEnd != null) {
if (elementAtStart == elementAtEnd && !(elementAtStart instanceof Expression)) {
final PsiElement elementToSurround = elementAtStart.getParent();
if (elementToSurround instanceof Expression) {
return new PsiElement[]{elementToSurround};
}
} else {
final PsiElement commonContext = PsiTreeUtil.findCommonParent(elementAtStart, elementAtEnd);
if (commonContext != null && !(commonContext instanceof PsiFile))
return new PsiElement[]{commonContext};
}
}
return PsiElement.EMPTY_ARRAY;
}
}