/*
* Copyright 2013-2016 consulo.io
*
* 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 consulo.unity3d.shaderlab.lang;
import java.util.List;
import org.jetbrains.annotations.NotNull;
import com.intellij.lang.ASTNode;
import com.intellij.lang.folding.CustomFoldingBuilder;
import com.intellij.lang.folding.FoldingDescriptor;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.PsiElement;
import consulo.unity3d.shaderlab.lang.psi.ShaderBraceOwner;
import consulo.unity3d.shaderlab.lang.psi.ShaderRoleOwner;
import consulo.unity3d.shaderlab.lang.psi.SharpLabElementVisitor;
/**
* @author VISTALL
* @since 09.05.2015
*/
public class ShaderLabFoldingBuilder extends CustomFoldingBuilder
{
@Override
protected void buildLanguageFoldRegions(@NotNull final List<FoldingDescriptor> descriptors, @NotNull PsiElement root, @NotNull Document document, boolean quick)
{
root.accept(new SharpLabElementVisitor()
{
@Override
public void visitElement(PsiElement element)
{
if(element instanceof ShaderBraceOwner)
{
descriptors.add(new FoldingDescriptor(element, element.getTextRange()));
}
element.acceptChildren(this);
}
});
}
@Override
protected String getLanguagePlaceholderText(@NotNull ASTNode node, @NotNull TextRange range)
{
PsiElement psi = node.getPsi();
assert psi instanceof ShaderRoleOwner : psi.getClass().getSimpleName();
PsiElement firstChild = psi.getFirstChild();
return firstChild.getText();
}
@Override
protected boolean isRegionCollapsedByDefault(@NotNull ASTNode node)
{
return false;
}
}