/*
* 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.xdebugger.impl.frame;
import com.intellij.ide.DataManager;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.DataProvider;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.util.Comparing;
import com.intellij.openapi.util.Key;
import com.intellij.openapi.util.Pair;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.util.containers.ContainerUtil;
import com.intellij.util.containers.ObjectLongHashMap;
import com.intellij.util.ui.components.BorderLayoutPanel;
import com.intellij.xdebugger.XDebugProcess;
import com.intellij.xdebugger.XDebugSession;
import com.intellij.xdebugger.XSourcePosition;
import com.intellij.xdebugger.frame.XStackFrame;
import com.intellij.xdebugger.impl.XDebugSessionImpl;
import com.intellij.xdebugger.impl.ui.DebuggerUIUtil;
import com.intellij.xdebugger.impl.ui.tree.XDebuggerTree;
import com.intellij.xdebugger.impl.ui.tree.nodes.XValueContainerNode;
import com.intellij.xdebugger.impl.ui.tree.nodes.XValueNodeImpl;
import gnu.trove.THashMap;
import gnu.trove.TObjectLongHashMap;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import javax.swing.*;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
/**
* @author nik
*/
public class XVariablesView extends XVariablesViewBase implements DataProvider {
public static final Key<InlineVariablesInfo> DEBUG_VARIABLES = Key.create("debug.variables");
public static final Key<ObjectLongHashMap<VirtualFile>> DEBUG_VARIABLES_TIMESTAMPS = Key.create("debug.variables.timestamps");
private final JPanel myComponent;
public XVariablesView(@NotNull XDebugSessionImpl session) {
super(session.getProject(), session.getDebugProcess().getEditorsProvider(), session.getValueMarkers());
myComponent = new BorderLayoutPanel();
myComponent.add(super.getPanel());
DataManager.registerDataProvider(myComponent, this);
}
@Override
public JPanel getPanel() {
return myComponent;
}
@Override
public void processSessionEvent(@NotNull SessionEvent event, @NotNull XDebugSession session) {
if (ApplicationManager.getApplication().isDispatchThread()) { // mark nodes obsolete asap
getTree().markNodesObsolete();
}
XStackFrame stackFrame = session.getCurrentStackFrame();
DebuggerUIUtil.invokeLater(() -> {
XDebuggerTree tree = getTree();
if (event == SessionEvent.BEFORE_RESUME || event == SessionEvent.SETTINGS_CHANGED) {
saveCurrentTreeState(stackFrame);
if (event == SessionEvent.BEFORE_RESUME) {
return;
}
}
tree.markNodesObsolete();
if (stackFrame != null) {
cancelClear();
buildTreeAndRestoreState(stackFrame);
}
else {
requestClear();
}
});
}
@Override
public void dispose() {
clearInlineData(getTree());
super.dispose();
}
private static void clearInlineData(XDebuggerTree tree) {
tree.getProject().putUserData(DEBUG_VARIABLES, null);
tree.getProject().putUserData(DEBUG_VARIABLES_TIMESTAMPS, null);
tree.updateEditor();
clearInlays(tree);
}
protected void addEmptyMessage(XValueContainerNode root) {
XDebugSession session = getSession(getPanel());
if (session != null) {
if (!session.isStopped() && session.isPaused()) {
root.setInfoMessage("Frame is not available", null);
}
else {
XDebugProcess debugProcess = session.getDebugProcess();
root.setInfoMessage(debugProcess.getCurrentStateMessage(), debugProcess.getCurrentStateHyperlinkListener());
}
}
}
@Override
protected void clear() {
XDebuggerTree tree = getTree();
tree.setSourcePosition(null);
clearInlineData(tree);
XValueContainerNode root = createNewRootNode(null);
addEmptyMessage(root);
super.clear();
}
@Nullable
@Override
public Object getData(@NonNls String dataId) {
if (CommonDataKeys.VIRTUAL_FILE.is(dataId)) {
return getCurrentFile(getTree());
}
return null;
}
public static class InlineVariablesInfo {
private final Map<Pair<VirtualFile, Integer>, Set<Entry>> myData = new THashMap<>();
private final TObjectLongHashMap<VirtualFile> myTimestamps = new ObjectLongHashMap<>();
@Nullable
public synchronized List<XValueNodeImpl> get(@NotNull VirtualFile file, int line, long currentTimestamp) {
long timestamp = myTimestamps.get(file);
if (timestamp == -1 || timestamp < currentTimestamp) {
return null;
}
Set<Entry> entries = myData.get(Pair.create(file, line));
if (entries == null) return null;
return ContainerUtil.map(entries, entry -> entry.myNode);
}
public synchronized void put(@NotNull VirtualFile file, @NotNull XSourcePosition position, @NotNull XValueNodeImpl node, long timestamp) {
myTimestamps.put(file, timestamp);
Pair<VirtualFile, Integer> key = Pair.create(file, position.getLine());
myData.computeIfAbsent(key, k -> new TreeSet<>()).add(new Entry(position.getOffset(), node));
}
private static class Entry implements Comparable<Entry> {
private final long myOffset;
private final XValueNodeImpl myNode;
public Entry(long offset, @NotNull XValueNodeImpl node) {
myOffset = offset;
myNode = node;
}
@Override
public int compareTo(Entry o) {
if (myNode == o.myNode) return 0;
int res = Comparing.compare(myOffset, o.myOffset);
if (res == 0) {
return XValueNodeImpl.COMPARATOR.compare(myNode, o.myNode);
}
return res;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Entry entry = (Entry)o;
if (!myNode.equals(entry.myNode)) return false;
return true;
}
@Override
public int hashCode() {
return myNode.hashCode();
}
}
}
}