/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* 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.jetbrains.kotlin.idea.codeInsight.surroundWith.statement;
import com.intellij.codeInsight.CodeInsightUtilBase;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.idea.codeInsight.surroundWith.KotlinSurrounderUtils;
import org.jetbrains.kotlin.idea.codeInsight.surroundWith.MoveDeclarationsOutHelper;
import org.jetbrains.kotlin.psi.KtBlockExpression;
import org.jetbrains.kotlin.psi.KtExpression;
import org.jetbrains.kotlin.psi.KtIfExpression;
import org.jetbrains.kotlin.psi.KtPsiFactoryKt;
public abstract class KotlinIfSurrounderBase extends KotlinStatementsSurrounder {
@Nullable
@Override
protected TextRange surroundStatements(Project project, Editor editor, PsiElement container, PsiElement[] statements) {
statements = MoveDeclarationsOutHelper.move(container, statements, isGenerateDefaultInitializers());
if (statements.length == 0) {
KotlinSurrounderUtils.showErrorHint(project, editor, KotlinSurrounderUtils.SURROUND_WITH_ERROR);
return null;
}
KtIfExpression ifExpression = (KtIfExpression) KtPsiFactoryKt.KtPsiFactory(project).createExpression(getCodeTemplate());
ifExpression = (KtIfExpression) container.addAfter(ifExpression, statements[statements.length - 1]);
// TODO move a comment for first statement
KtBlockExpression thenBranch = (KtBlockExpression) ifExpression.getThen();
assert thenBranch != null : "Then branch should exist for created if expression: " + ifExpression.getText();
// Add statements in then branch of created if
KotlinSurrounderUtils.addStatementsInBlock(thenBranch, statements);
// Delete statements from original code
container.deleteChildRange(statements[0], statements[statements.length - 1]);
ifExpression = CodeInsightUtilBase.forcePsiPostprocessAndRestoreElement(ifExpression);
KtExpression condition = ifExpression.getCondition();
assert condition != null : "Condition should exists for created if expression: " + ifExpression.getText();
// Delete condition from created if
TextRange range = condition.getTextRange();
TextRange textRange = new TextRange(range.getStartOffset(), range.getStartOffset());
editor.getDocument().deleteString(range.getStartOffset(), range.getEndOffset());
return textRange;
}
@NotNull
protected abstract String getCodeTemplate();
protected abstract boolean isGenerateDefaultInitializers();
}