/*
* Copyright 2000-2016 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.codeInsight.daemon.impl;
import com.intellij.codeInsight.navigation.ListBackgroundUpdaterTask;
import com.intellij.find.FindUtil;
import com.intellij.ide.PsiCopyPasteManager;
import com.intellij.ide.util.PsiElementListCellRenderer;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.ex.util.EditorUtil;
import com.intellij.openapi.progress.ProgressManager;
import com.intellij.openapi.ui.popup.JBPopup;
import com.intellij.openapi.ui.popup.PopupChooserBuilder;
import com.intellij.openapi.util.Ref;
import com.intellij.psi.NavigatablePsiElement;
import com.intellij.psi.PsiElement;
import com.intellij.ui.CollectionListModel;
import com.intellij.ui.awt.RelativePoint;
import com.intellij.ui.components.JBList;
import com.intellij.ui.popup.AbstractPopup;
import com.intellij.ui.popup.HintUpdateSupply;
import com.intellij.usages.UsageView;
import com.intellij.util.Alarm;
import com.intellij.util.Consumer;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import javax.swing.*;
import java.awt.datatransfer.Transferable;
import java.awt.event.MouseEvent;
import java.util.List;
public class PsiElementListNavigator {
private static final Logger LOG = Logger.getInstance("#com.intellij.codeInsight.daemon.impl.PsiElementListNavigator");
private PsiElementListNavigator() {
}
public static void openTargets(MouseEvent e, NavigatablePsiElement[] targets, String title, final String findUsagesTitle, ListCellRenderer listRenderer) {
openTargets(e, targets, title, findUsagesTitle, listRenderer, null);
}
public static void openTargets(MouseEvent e,
NavigatablePsiElement[] targets,
String title,
final String findUsagesTitle,
ListCellRenderer listRenderer,
@Nullable ListBackgroundUpdaterTask listUpdaterTask) {
JBPopup popup = navigateOrCreatePopup(targets, title, findUsagesTitle, listRenderer, listUpdaterTask);
if (popup != null) {
if (listUpdaterTask != null) {
Alarm alarm = new Alarm(popup);
alarm.addRequest(() -> popup.show(new RelativePoint(e)), 300);
ProgressManager.getInstance().run(listUpdaterTask);
}
else {
popup.show(new RelativePoint(e));
}
}
}
public static void openTargets(Editor e, NavigatablePsiElement[] targets, String title, final String findUsagesTitle, ListCellRenderer listRenderer) {
JBPopup popup = navigateOrCreatePopup(targets, title, findUsagesTitle, listRenderer, null);
if (popup != null) popup.showInBestPositionFor(e);
}
@Nullable
private static JBPopup navigateOrCreatePopup(final NavigatablePsiElement[] targets,
final String title,
final String findUsagesTitle,
final ListCellRenderer listRenderer,
@Nullable final ListBackgroundUpdaterTask listUpdaterTask) {
return navigateOrCreatePopup(targets, title, findUsagesTitle, listRenderer, listUpdaterTask, selectedElements -> {
for (Object element : selectedElements) {
PsiElement selected = (PsiElement)element;
LOG.assertTrue(selected.isValid());
((NavigatablePsiElement)selected).navigate(true);
}
});
}
/**
* listUpdaterTask should be started after alarm is initialized so one-item popup won't blink
*/
@Nullable
public static JBPopup navigateOrCreatePopup(@NotNull final NavigatablePsiElement[] targets,
final String title,
final String findUsagesTitle,
final ListCellRenderer listRenderer,
@Nullable final ListBackgroundUpdaterTask listUpdaterTask,
@NotNull final Consumer<Object[]> consumer) {
if (targets.length == 0) return null;
if (targets.length == 1 && (listUpdaterTask == null || listUpdaterTask.isFinished())) {
consumer.consume(targets);
return null;
}
final CollectionListModel<NavigatablePsiElement> model = new CollectionListModel<>(targets);
final JBList list = new JBList(model);
HintUpdateSupply.installSimpleHintUpdateSupply(list);
list.setTransferHandler(new TransferHandler(){
@Nullable
@Override
protected Transferable createTransferable(JComponent c) {
final Object[] selectedValues = list.getSelectedValues();
final PsiElement[] copy = new PsiElement[selectedValues.length];
for (int i = 0; i < selectedValues.length; i++) {
copy[i] = (PsiElement)selectedValues[i];
}
return new PsiCopyPasteManager.MyTransferable(copy);
}
@Override
public int getSourceActions(JComponent c) {
return COPY;
}
});
list.setCellRenderer(listRenderer);
list.setFont(EditorUtil.getEditorFont());
final PopupChooserBuilder builder = new PopupChooserBuilder(list);
if (listRenderer instanceof PsiElementListCellRenderer) {
((PsiElementListCellRenderer)listRenderer).installSpeedSearch(builder);
}
PopupChooserBuilder popupChooserBuilder = builder.
setTitle(title).
setMovable(true).
setResizable(true).
setItemChoosenCallback(() -> {
int[] ids = list.getSelectedIndices();
if (ids == null || ids.length == 0) return;
Object[] selectedElements = list.getSelectedValues();
consumer.consume(selectedElements);
}).
setCancelCallback(() -> {
HintUpdateSupply.hideHint(list);
if (listUpdaterTask != null) {
listUpdaterTask.cancelTask();
}
return true;
});
final Ref<UsageView> usageView = new Ref<>();
if (findUsagesTitle != null) {
popupChooserBuilder = popupChooserBuilder.setCouldPin(popup -> {
final List<NavigatablePsiElement> items = model.getItems();
usageView.set(FindUtil.showInUsageView(null, items.toArray(new PsiElement[items.size()]), findUsagesTitle, targets[0].getProject()));
popup.cancel();
return false;
});
}
final JBPopup popup = popupChooserBuilder.createPopup();
builder.getScrollPane().setBorder(null);
builder.getScrollPane().setViewportBorder(null);
if (listUpdaterTask != null) {
listUpdaterTask.init((AbstractPopup)popup, list, usageView);
}
return popup;
}
}