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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.ui;
import com.intellij.ide.DataManager;
import com.intellij.lang.Language;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.actionSystem.DefaultActionGroup;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.fileTypes.FileType;
import com.intellij.openapi.fileTypes.LanguageFileType;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.popup.JBPopupFactory;
import com.intellij.openapi.ui.popup.ListPopup;
import com.intellij.openapi.util.IconLoader;
import com.intellij.openapi.wm.IdeFocusManager;
import com.intellij.reference.SoftReference;
import com.intellij.ui.ClickListener;
import com.intellij.xdebugger.XExpression;
import com.intellij.xdebugger.XSourcePosition;
import com.intellij.xdebugger.evaluation.EvaluationMode;
import com.intellij.xdebugger.evaluation.XDebuggerEditorsProvider;
import com.intellij.xdebugger.impl.XDebuggerHistoryManager;
import com.intellij.xdebugger.impl.breakpoints.XExpressionImpl;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import javax.swing.*;
import javax.swing.border.EmptyBorder;
import java.awt.*;
import java.awt.event.MouseEvent;
import java.lang.ref.WeakReference;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
/**
* @author nik
*/
public abstract class XDebuggerEditorBase {
private final Project myProject;
private final XDebuggerEditorsProvider myDebuggerEditorsProvider;
@NotNull private final EvaluationMode myMode;
@Nullable private final String myHistoryId;
private final XSourcePosition mySourcePosition;
private int myHistoryIndex;
private final JLabel myChooseFactory = new JLabel();
private WeakReference<ListPopup> myPopup;
protected XDebuggerEditorBase(final Project project,
@NotNull XDebuggerEditorsProvider debuggerEditorsProvider,
@NotNull EvaluationMode mode,
@Nullable @NonNls String historyId,
final @Nullable XSourcePosition sourcePosition) {
myProject = project;
myDebuggerEditorsProvider = debuggerEditorsProvider;
myMode = mode;
myHistoryId = historyId;
mySourcePosition = sourcePosition;
myChooseFactory.setToolTipText("Click to change the language");
myChooseFactory.setBorder(new EmptyBorder(0, 3, 0, 3));
new ClickListener() {
@Override
public boolean onClick(@NotNull MouseEvent e, int clickCount) {
ListPopup oldPopup = SoftReference.dereference(myPopup);
if (oldPopup != null && !oldPopup.isDisposed()) {
oldPopup.cancel();
myPopup = null;
return true;
}
ListPopup popup = createLanguagePopup();
popup.showUnderneathOf(myChooseFactory);
myPopup = new WeakReference<ListPopup>(popup);
return true;
}
}.installOn(myChooseFactory);
}
private ListPopup createLanguagePopup() {
DefaultActionGroup actions = new DefaultActionGroup();
for (final Language language : getEditorsProvider().getSupportedLanguages(myProject, mySourcePosition)) {
actions.add(new AnAction(language.getDisplayName(), null, language.getAssociatedFileType().getIcon()) {
@Override
public void actionPerformed(AnActionEvent e) {
XExpression currentExpression = getExpression();
setExpression(new XExpressionImpl(currentExpression.getExpression(), language, currentExpression.getCustomInfo()));
IdeFocusManager.getInstance(getProject()).requestFocus(getComponent(), true);
}
});
}
DataContext dataContext = DataManager.getInstance().getDataContext(getComponent());
return JBPopupFactory.getInstance().createActionGroupPopup("Choose language", actions, dataContext,
JBPopupFactory.ActionSelectionAid.SPEEDSEARCH,
false);
}
protected JPanel addChooseFactoryLabel(JComponent component, boolean top) {
JPanel panel = new JPanel(new BorderLayout());
panel.add(component, BorderLayout.CENTER);
JPanel factoryPanel = new JPanel(new BorderLayout());
factoryPanel.add(myChooseFactory, top ? BorderLayout.NORTH : BorderLayout.CENTER);
panel.add(factoryPanel, BorderLayout.WEST);
return panel;
}
@NotNull
public EvaluationMode getMode() {
return myMode;
}
@Nullable
public abstract Editor getEditor();
public abstract JComponent getComponent();
protected abstract void doSetText(XExpression text);
public void setExpression(@Nullable XExpression text) {
if (text == null) {
text = getMode() == EvaluationMode.EXPRESSION ? XExpressionImpl.EMPTY_EXPRESSION : XExpressionImpl.EMPTY_CODE_FRAGMENT;
}
saveTextInHistory(text);
Language language = text.getLanguage();
if (language == null) {
if (mySourcePosition != null) {
language = getFileTypeLanguage(mySourcePosition.getFile().getFileType());
}
if (language == null) {
language = getFileTypeLanguage(getEditorsProvider().getFileType());
}
}
text = new XExpressionImpl(text.getExpression(), language, text.getCustomInfo(), getMode());
Collection<Language> languages = getEditorsProvider().getSupportedLanguages(myProject, mySourcePosition);
boolean many = languages.size() > 1;
if (language != null) {
myChooseFactory.setVisible(many);
}
myChooseFactory.setVisible(myChooseFactory.isVisible() || many);
//myChooseFactory.setEnabled(many && languages.contains(language));
if (language != null && language.getAssociatedFileType() != null) {
Icon icon = language.getAssociatedFileType().getIcon();
myChooseFactory.setIcon(icon);
myChooseFactory.setDisabledIcon(IconLoader.getDisabledIcon(icon));
}
doSetText(text);
}
@Nullable
public static Language getFileTypeLanguage(@Nullable FileType fileType) {
if (fileType instanceof LanguageFileType) {
return ((LanguageFileType)fileType).getLanguage();
}
return null;
}
public abstract XExpression getExpression();
@Nullable
public abstract JComponent getPreferredFocusedComponent();
public abstract void selectAll();
protected void onHistoryChanged() {
}
protected List<XExpression> getRecentExpressions() {
if (myHistoryId != null) {
return XDebuggerHistoryManager.getInstance(myProject).getRecentExpressions(myHistoryId);
}
return Collections.emptyList();
}
public void saveTextInHistory() {
saveTextInHistory(getExpression());
}
private void saveTextInHistory(final XExpression text) {
if (myHistoryId != null) {
boolean update = XDebuggerHistoryManager.getInstance(myProject).addRecentExpression(myHistoryId, text);
myHistoryIndex = 0;
if (update) {
onHistoryChanged();
}
}
}
public XDebuggerEditorsProvider getEditorsProvider() {
return myDebuggerEditorsProvider;
}
public Project getProject() {
return myProject;
}
protected Document createDocument(final XExpression text) {
return getEditorsProvider().createDocument(getProject(), text, mySourcePosition, myMode);
}
public boolean canGoBackward() {
return myHistoryIndex < getRecentExpressions().size()-1;
}
public boolean canGoForward() {
return myHistoryIndex > 0;
}
public void goBackward() {
final List<XExpression> expressions = getRecentExpressions();
if (myHistoryIndex < expressions.size() - 1) {
myHistoryIndex++;
doSetText(expressions.get(myHistoryIndex));
}
}
public void goForward() {
final List<XExpression> expressions = getRecentExpressions();
if (myHistoryIndex > 0) {
myHistoryIndex--;
doSetText(expressions.get(myHistoryIndex));
}
}
}
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