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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.debugger.ui;
import com.intellij.codeInsight.hint.HintManager;
import com.intellij.codeInsight.hint.HintManagerImpl;
import com.intellij.debugger.DebuggerBundle;
import com.intellij.debugger.DebuggerInvocationUtil;
import com.intellij.debugger.DebuggerManagerEx;
import com.intellij.debugger.engine.evaluation.EvaluateException;
import com.intellij.debugger.engine.evaluation.EvaluationContextImpl;
import com.intellij.debugger.engine.events.DebuggerContextCommandImpl;
import com.intellij.debugger.impl.DebuggerContextImpl;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.progress.ProcessCanceledException;
import com.intellij.openapi.progress.ProgressIndicator;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Computable;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.Nullable;
/**
* @author lex
*/
public abstract class EditorEvaluationCommand<T> extends DebuggerContextCommandImpl {
protected final PsiElement myElement;
@Nullable private final Editor myEditor;
protected final ProgressIndicator myProgressIndicator;
private final DebuggerContextImpl myDebuggerContext;
public EditorEvaluationCommand(@Nullable Editor editor, PsiElement expression, DebuggerContextImpl context,
final ProgressIndicator indicator) {
super(context);
Project project = expression.getProject();
myProgressIndicator = indicator;
myEditor = editor;
myElement = expression;
myDebuggerContext = (DebuggerManagerEx.getInstanceEx(project)).getContext();
}
public Priority getPriority() {
return Priority.HIGH;
}
protected abstract T evaluate(EvaluationContextImpl evaluationContext) throws EvaluateException;
public T evaluate() throws EvaluateException {
myProgressIndicator.setText(DebuggerBundle.message("progress.evaluating", ApplicationManager.getApplication().runReadAction(new Computable<String>() {
public String compute() {
return myElement.getText();
}
})));
try {
T result = evaluate(myDebuggerContext.createEvaluationContext());
if (myProgressIndicator.isCanceled()) throw new ProcessCanceledException();
return result;
} catch (final EvaluateException e) {
if (myEditor != null) {
DebuggerInvocationUtil.invokeLater(myDebuggerContext.getProject(), new Runnable() {
public void run() {
showEvaluationHint(myEditor, myElement, e);
}
}, myProgressIndicator.getModalityState());
}
throw e;
}
}
public static void showEvaluationHint(final Editor myEditor, final PsiElement myElement, final EvaluateException e) {
if (myEditor.isDisposed() || !myEditor.getComponent().isVisible()) return;
HintManager.getInstance().showErrorHint(myEditor, e.getMessage(), myElement.getTextRange().getStartOffset(),
myElement.getTextRange().getEndOffset(), HintManagerImpl.UNDER,
HintManagerImpl.HIDE_BY_ESCAPE | HintManagerImpl.HIDE_BY_TEXT_CHANGE,
1500);
}
}
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