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Added folding building for templates.

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This commit is contained in:
Evgeny Gerashchenko
2012-01-31 20:19:33 +04:00
parent 29c465641b
commit 762e9af197
1 changed files with 14 additions and 2 deletions
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idea/src/org/jetbrains/jet/plugin/JetFoldingBuilder.java
+14 -2
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@@ -6,10 +6,13 @@ import com.intellij.lang.folding.FoldingDescriptor;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.project.DumbAware;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.tree.IElementType;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.jet.JetNodeTypes;
import org.jetbrains.jet.lexer.JetTokens;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
@@ -26,9 +29,14 @@ public class JetFoldingBuilder implements FoldingBuilder, DumbAware {
private void appendDescriptors(ASTNode node, Document document, List<FoldingDescriptor> descriptors) {
TextRange textRange = node.getTextRange();
if ((node.getElementType() == JetNodeTypes.BLOCK || node.getElementType() == JetNodeTypes.CLASS_BODY) &&
IElementType type = node.getElementType();
if ((type == JetNodeTypes.BLOCK || type == JetNodeTypes.CLASS_BODY) &&
!isOneLine(textRange, document)) {
descriptors.add(new FoldingDescriptor(node, textRange));
} else if (type == JetNodeTypes.PARENTHESIZED && node.getFirstChildNode().getElementType() == JetTokens.IDE_TEMPLATE_START) {
if (node.getTreeParent().getTextLength() > 0) {
descriptors.add(new FoldingDescriptor(node, textRange, null, Collections.<Object>emptySet(), true));
}
}
ASTNode child = node.getFirstChildNode();
while (child != null) {
@@ -37,12 +45,16 @@ public class JetFoldingBuilder implements FoldingBuilder, DumbAware {
}
}
private boolean isOneLine(TextRange textRange, Document document) {
private static boolean isOneLine(TextRange textRange, Document document) {
return document.getLineNumber(textRange.getStartOffset()) == document.getLineNumber(textRange.getEndOffset());
}
@Override
public String getPlaceholderText(@NotNull ASTNode astNode) {
if (astNode.getElementType() == JetNodeTypes.PARENTHESIZED && astNode.getFirstChildNode().getElementType() == JetTokens.IDE_TEMPLATE_START) {
ASTNode placeholderExpression = astNode.getFirstChildNode().getTreeNext();
return placeholderExpression.getText();
}
return "{...}";
}