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/*
* Copyright 2000-2009 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 com.intellij.xdebugger.impl.evaluate.quick;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.SelectionModel;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Computable;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.PsiDocumentManager;
import com.intellij.xdebugger.XDebugSession;
import com.intellij.xdebugger.XDebuggerManager;
import com.intellij.xdebugger.evaluation.ExpressionInfo;
import com.intellij.xdebugger.evaluation.XDebuggerEvaluator;
import com.intellij.xdebugger.impl.evaluate.quick.common.AbstractValueHint;
import com.intellij.xdebugger.impl.evaluate.quick.common.QuickEvaluateHandler;
import com.intellij.xdebugger.impl.evaluate.quick.common.ValueHintType;
import com.intellij.xdebugger.settings.XDebuggerSettingsManager;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.awt.*;
/**
* @author nik
*/
public class XQuickEvaluateHandler extends QuickEvaluateHandler {
private static final Logger LOG = Logger.getInstance("#com.intellij.xdebugger.impl.evaluate.quick.XQuickEvaluateHandler");
@Override
public boolean isEnabled(@NotNull final Project project) {
XDebugSession session = XDebuggerManager.getInstance(project).getCurrentSession();
return session != null && session.getDebugProcess().getEvaluator() != null;
}
@Override
public AbstractValueHint createValueHint(@NotNull final Project project, @NotNull final Editor editor, @NotNull final Point point, final ValueHintType type) {
final XDebugSession session = XDebuggerManager.getInstance(project).getCurrentSession();
if (session == null) {
return null;
}
final XDebuggerEvaluator evaluator = session.getDebugProcess().getEvaluator();
if (evaluator == null) {
return null;
}
return PsiDocumentManager.getInstance(project).commitAndRunReadAction(new Computable<XValueHint>() {
@Override
public XValueHint compute() {
int offset = AbstractValueHint.calculateOffset(editor, point);
ExpressionInfo expressionInfo = getExpressionInfo(evaluator, project, type, editor, offset);
if (expressionInfo == null) {
return null;
}
int textLength = editor.getDocument().getTextLength();
TextRange range = expressionInfo.getTextRange();
if (range.getStartOffset() > range.getEndOffset() || range.getStartOffset() < 0 || range.getEndOffset() > textLength) {
LOG.error("invalid range: " + range + ", text length = " + textLength + ", evaluator: " + evaluator);
return null;
}
return new XValueHint(project, editor, point, type, expressionInfo, evaluator, session);
}
});
}
@Nullable
private static ExpressionInfo getExpressionInfo(final XDebuggerEvaluator evaluator, final Project project,
final ValueHintType type,
final Editor editor, final int offset) {
SelectionModel selectionModel = editor.getSelectionModel();
int selectionStart = selectionModel.getSelectionStart();
int selectionEnd = selectionModel.getSelectionEnd();
if ((type == ValueHintType.MOUSE_CLICK_HINT || type == ValueHintType.MOUSE_ALT_OVER_HINT) && selectionModel.hasSelection()
&& selectionStart <= offset && offset <= selectionEnd) {
return new ExpressionInfo(new TextRange(selectionStart, selectionEnd));
}
return evaluator.getExpressionInfoAtOffset(project, editor.getDocument(), offset, type == ValueHintType.MOUSE_CLICK_HINT || type == ValueHintType.MOUSE_ALT_OVER_HINT);
}
@Override
public boolean canShowHint(@NotNull final Project project) {
return isEnabled(project);
}
@Override
public int getValueLookupDelay(final Project project) {
XDebugSession session = XDebuggerManager.getInstance(project).getCurrentSession();
if (session != null) {
XDebuggerEvaluator evaluator = session.getDebugProcess().getEvaluator();
if (evaluator != null) {
return evaluator.getValuePopupDelay();
}
}
return XDebuggerSettingsManager.getInstance().getDataViewSettings().getValueLookupDelay();
}
}
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