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package com.jetbrains.python.edu.projectView;
import com.intellij.ide.projectView.TreeStructureProvider;
import com.intellij.ide.projectView.ViewSettings;
import com.intellij.ide.projectView.impl.nodes.PsiFileNode;
import com.intellij.ide.util.treeView.AbstractTreeNode;
import com.intellij.openapi.project.DumbAware;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiDirectory;
import com.jetbrains.python.edu.StudyTaskManager;
import com.jetbrains.python.edu.course.Course;
import com.jetbrains.python.edu.course.Task;
import com.jetbrains.python.edu.course.TaskFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.Collection;
public class StudyTreeStructureProvider implements TreeStructureProvider, DumbAware {
@NotNull
@Override
public Collection<AbstractTreeNode> modify(@NotNull AbstractTreeNode parent,
@NotNull Collection<AbstractTreeNode> children,
ViewSettings settings) {
if (!needModify(parent)) {
return children;
}
Collection<AbstractTreeNode> nodes = new ArrayList<AbstractTreeNode>();
for (AbstractTreeNode node : children) {
Project project = node.getProject();
if (project != null) {
if (node.getValue() instanceof PsiDirectory) {
PsiDirectory nodeValue = (PsiDirectory)node.getValue();
if (!nodeValue.getName().contains(Task.USER_TESTS)) {
StudyDirectoryNode newNode = new StudyDirectoryNode(project, nodeValue, settings);
nodes.add(newNode);
}
}
else {
if (parent instanceof StudyDirectoryNode) {
if (node instanceof PsiFileNode) {
PsiFileNode psiFileNode = (PsiFileNode)node;
VirtualFile virtualFile = psiFileNode.getVirtualFile();
if (virtualFile == null) {
return nodes;
}
TaskFile taskFile = StudyTaskManager.getInstance(project).getTaskFile(virtualFile);
if (taskFile != null) {
nodes.add(node);
}
String parentName = parent.getName();
if (parentName != null) {
if (parentName.equals(Course.PLAYGROUND_DIR)) {
nodes.add(node);
}
}
}
}
}
}
}
return nodes;
}
private static boolean needModify(AbstractTreeNode parent) {
Project project = parent.getProject();
if (project != null) {
StudyTaskManager studyTaskManager = StudyTaskManager.getInstance(project);
if (studyTaskManager.getCourse() == null) {
return false;
}
}
return true;
}
@Nullable
@Override
public Object getData(Collection<AbstractTreeNode> selected, String dataName) {
return null;
}
}
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