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/*
* Copyright 2000-2014 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.jetbrains.python.projectView;
import com.intellij.ide.projectView.SelectableTreeStructureProvider;
import com.intellij.ide.projectView.ViewSettings;
import com.intellij.ide.projectView.impl.nodes.NamedLibraryElement;
import com.intellij.ide.projectView.impl.nodes.NamedLibraryElementNode;
import com.intellij.ide.projectView.impl.nodes.PsiDirectoryNode;
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.projectRoots.Sdk;
import com.intellij.openapi.projectRoots.SdkTypeId;
import com.intellij.openapi.roots.JdkOrderEntry;
import com.intellij.openapi.roots.LibraryOrSdkOrderEntry;
import com.intellij.psi.PsiDirectory;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.util.PsiTreeUtil;
import com.jetbrains.python.codeInsight.userSkeletons.PyUserSkeletonsUtil;
import com.jetbrains.python.psi.PyDocStringOwner;
import com.jetbrains.python.psi.PyFile;
import com.jetbrains.python.psi.PyFunction;
import com.jetbrains.python.sdk.PythonSdkType;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
/**
* @author yole
*/
public class PyTreeStructureProvider implements SelectableTreeStructureProvider, DumbAware {
@NotNull
@Override
public Collection<AbstractTreeNode> modify(@NotNull AbstractTreeNode parent, @NotNull Collection<AbstractTreeNode> children, ViewSettings settings) {
final Project project = parent.getProject();
final Sdk sdk = getPythonSdk(parent);
if (sdk != null && project != null) {
final Collection<AbstractTreeNode> newChildren = hideSkeletons(children);
final PySkeletonsNode skeletonsNode = PySkeletonsNode.create(project, sdk, settings);
if (skeletonsNode != null) {
newChildren.add(skeletonsNode);
}
final PyUserSkeletonsNode userSkeletonsNode = PyUserSkeletonsNode.create(project, settings);
if (userSkeletonsNode != null) {
newChildren.add(userSkeletonsNode);
}
final PyRemoteLibrariesNode remoteLibrariesNode = PyRemoteLibrariesNode.create(project, sdk, settings);
if (remoteLibrariesNode != null) {
newChildren.add(remoteLibrariesNode);
}
return newChildren;
}
if (settings.isShowMembers()) {
List<AbstractTreeNode> newChildren = new ArrayList<AbstractTreeNode>();
for (AbstractTreeNode child : children) {
if (child instanceof PsiFileNode && ((PsiFileNode)child).getValue() instanceof PyFile) {
newChildren.add(new PyFileNode(project, ((PsiFileNode)child).getValue(), settings));
}
else {
newChildren.add(child);
}
}
return newChildren;
}
return children;
}
@Nullable
private static Sdk getPythonSdk(@NotNull AbstractTreeNode node) {
if (node instanceof NamedLibraryElementNode) {
final NamedLibraryElement value = ((NamedLibraryElementNode)node).getValue();
if (value != null) {
final LibraryOrSdkOrderEntry entry = value.getOrderEntry();
if (entry instanceof JdkOrderEntry) {
final Sdk sdk = ((JdkOrderEntry)entry).getJdk();
final SdkTypeId type = sdk.getSdkType();
if (type instanceof PythonSdkType) {
return sdk;
}
}
}
}
return null;
}
@NotNull
private static Collection<AbstractTreeNode> hideSkeletons(@NotNull Collection<AbstractTreeNode> children) {
List<AbstractTreeNode> newChildren = new ArrayList<AbstractTreeNode>();
for (AbstractTreeNode child : children) {
if (child instanceof PsiDirectoryNode) {
PsiDirectory directory = ((PsiDirectoryNode)child).getValue();
if (directory.getVirtualFile().equals(PyUserSkeletonsUtil.getUserSkeletonsDirectory())) {
continue;
}
PsiDirectory dirParent = directory.getParent();
if (dirParent != null && dirParent.getName().equals(PythonSdkType.SKELETON_DIR_NAME)) {
continue;
}
if (dirParent != null && dirParent.getName().equals(PythonSdkType.REMOTE_SOURCES_DIR_NAME)) {
continue;
}
if (dirParent != null) {
PsiDirectory grandParent = dirParent.getParent();
if (grandParent != null && grandParent.getName().equals(PythonSdkType.REMOTE_SOURCES_DIR_NAME)) {
continue;
}
}
}
newChildren.add(child);
}
return newChildren;
}
@Override
public Object getData(Collection<AbstractTreeNode> selected, String dataName) {
return null;
}
@Override
public PsiElement getTopLevelElement(PsiElement element) {
final PsiFile containingFile = element.getContainingFile();
if (!(containingFile instanceof PyFile)) {
return null;
}
List<PsiElement> parents = new ArrayList<PsiElement>();
PyDocStringOwner container = PsiTreeUtil.getParentOfType(element, PyDocStringOwner.class);
while (container != null) {
if (container instanceof PyFile) {
break;
}
parents.add(0, container);
container = PsiTreeUtil.getParentOfType(container, PyDocStringOwner.class);
}
for (PsiElement parent : parents) {
if (parent instanceof PyFunction) {
return parent; // we don't display any nodes under functions
}
}
if (parents.size() > 0) {
return parents.get(parents.size()-1);
}
return element.getContainingFile();
}
}
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