Java tutorial
/* * Copyright 2000-2011 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.ide.scopeView; import com.intellij.icons.AllIcons; import com.intellij.ide.IdeBundle; import com.intellij.ide.SelectInTarget; import com.intellij.ide.projectView.ProjectView; import com.intellij.ide.projectView.impl.AbstractProjectViewPane; import com.intellij.ide.projectView.impl.ShowModulesAction; import com.intellij.openapi.actionSystem.ActionManager; import com.intellij.openapi.actionSystem.ActionPlaces; import com.intellij.openapi.actionSystem.DefaultActionGroup; import com.intellij.openapi.actionSystem.IdeActions; import com.intellij.openapi.project.Project; import com.intellij.openapi.util.ActionCallback; import com.intellij.openapi.util.Comparing; import com.intellij.openapi.util.Disposer; import com.intellij.openapi.vfs.VirtualFile; import com.intellij.packageDependencies.DependencyValidationManager; import com.intellij.packageDependencies.ui.PackageDependenciesNode; import com.intellij.psi.PsiElement; import com.intellij.psi.PsiFile; import com.intellij.psi.PsiFileSystemItem; import com.intellij.psi.PsiManager; import com.intellij.psi.search.scope.NonProjectFilesScope; import com.intellij.psi.search.scope.packageSet.*; import com.intellij.ui.PopupHandler; import com.intellij.util.Alarm; import com.intellij.util.ArrayUtil; import com.intellij.util.containers.ContainerUtil; import org.jetbrains.annotations.NonNls; import org.jetbrains.annotations.NotNull; import javax.swing.*; import javax.swing.tree.DefaultMutableTreeNode; import java.util.ArrayList; import java.util.List; /** * @author cdr */ public class ScopeViewPane extends AbstractProjectViewPane { @NonNls public static final String ID = "Scope"; private final ProjectView myProjectView; private ScopeTreeViewPanel myViewPanel; private final DependencyValidationManager myDependencyValidationManager; private final NamedScopeManager myNamedScopeManager; private final NamedScopesHolder.ScopeListener myScopeListener; public ScopeViewPane(final Project project, ProjectView projectView, DependencyValidationManager dependencyValidationManager, NamedScopeManager namedScopeManager) { super(project); myProjectView = projectView; myDependencyValidationManager = dependencyValidationManager; myNamedScopeManager = namedScopeManager; myScopeListener = new NamedScopesHolder.ScopeListener() { Alarm refreshProjectViewAlarm = new Alarm(); @Override public void scopesChanged() { // amortize batch scope changes refreshProjectViewAlarm.cancelAllRequests(); refreshProjectViewAlarm.addRequest(new Runnable() { @Override public void run() { if (myProject.isDisposed()) return; final String subId = getSubId(); final String id = myProjectView.getCurrentViewId(); myProjectView.removeProjectPane(ScopeViewPane.this); myProjectView.addProjectPane(ScopeViewPane.this); if (id != null) { if (Comparing.strEqual(id, getId())) { myProjectView.changeView(id, subId); } else { myProjectView.changeView(id); } } } }, 10); } }; myDependencyValidationManager.addScopeListener(myScopeListener); myNamedScopeManager.addScopeListener(myScopeListener); } @Override public String getTitle() { return IdeBundle.message("scope.view.title"); } @Override public Icon getIcon() { return AllIcons.Ide.LocalScope; } @Override @NotNull public String getId() { return ID; } @Override public JComponent createComponent() { myViewPanel = new ScopeTreeViewPanel(myProject); Disposer.register(this, myViewPanel); myViewPanel.initListeners(); myViewPanel.selectScope(NamedScopesHolder.getScope(myProject, getSubId())); myTree = myViewPanel.getTree(); PopupHandler.installPopupHandler(myTree, IdeActions.GROUP_SCOPE_VIEW_POPUP, ActionPlaces.SCOPE_VIEW_POPUP); enableDnD(); return myViewPanel.getPanel(); } @Override public void dispose() { myViewPanel = null; myDependencyValidationManager.removeScopeListener(myScopeListener); myNamedScopeManager.removeScopeListener(myScopeListener); super.dispose(); } @Override @NotNull public String[] getSubIds() { NamedScope[] scopes = myDependencyValidationManager.getScopes(); scopes = ArrayUtil.mergeArrays(scopes, myNamedScopeManager.getScopes()); scopes = NonProjectFilesScope.removeFromList(scopes); String[] ids = new String[scopes.length]; for (int i = 0; i < scopes.length; i++) { final NamedScope scope = scopes[i]; ids[i] = scope.getName(); } return ids; } @Override @NotNull public String getPresentableSubIdName(@NotNull final String subId) { return subId; } @Override public void addToolbarActions(DefaultActionGroup actionGroup) { actionGroup.add(ActionManager.getInstance().getAction("ScopeView.EditScopes")); actionGroup.addAction(new ShowModulesAction(myProject) { @Override protected String getId() { return ScopeViewPane.this.getId(); } }).setAsSecondary(true); } @Override public ActionCallback updateFromRoot(boolean restoreExpandedPaths) { saveExpandedPaths(); myViewPanel.selectScope(NamedScopesHolder.getScope(myProject, getSubId())); restoreExpandedPaths(); return new ActionCallback.Done(); } @Override public void select(Object element, VirtualFile file, boolean requestFocus) { if (file == null) return; PsiFileSystemItem psiFile = file.isDirectory() ? PsiManager.getInstance(myProject).findDirectory(file) : PsiManager.getInstance(myProject).findFile(file); if (psiFile == null) return; if (!(element instanceof PsiElement)) return; List<NamedScope> allScopes = new ArrayList<NamedScope>(); ContainerUtil.addAll(allScopes, myDependencyValidationManager.getScopes()); ContainerUtil.addAll(allScopes, myNamedScopeManager.getScopes()); for (int i = 0; i < allScopes.size(); i++) { final NamedScope scope = allScopes.get(i); String name = scope.getName(); if (name.equals(getSubId())) { allScopes.set(i, allScopes.get(0)); allScopes.set(0, scope); break; } } for (NamedScope scope : allScopes) { String name = scope.getName(); PackageSet packageSet = scope.getValue(); if (packageSet == null) continue; if (changeView(packageSet, ((PsiElement) element), psiFile, name, myNamedScopeManager, requestFocus)) break; if (changeView(packageSet, ((PsiElement) element), psiFile, name, myDependencyValidationManager, requestFocus)) break; } } private boolean changeView(final PackageSet packageSet, final PsiElement element, final PsiFileSystemItem psiFileSystemItem, final String name, final NamedScopesHolder holder, boolean requestFocus) { if ((packageSet instanceof PackageSetBase && ((PackageSetBase) packageSet).contains(psiFileSystemItem.getVirtualFile(), holder)) || (psiFileSystemItem instanceof PsiFile && packageSet.contains((PsiFile) psiFileSystemItem, holder))) { if (!name.equals(getSubId())) { myProjectView.changeView(getId(), name); } myViewPanel.selectNode(element, psiFileSystemItem, requestFocus); return true; } return false; } @Override public int getWeight() { return 3; } @Override public void installComparator() { myViewPanel.setSortByType(); } @Override public SelectInTarget createSelectInTarget() { return new ScopePaneSelectInTarget(myProject); } @Override protected Object exhumeElementFromNode(final DefaultMutableTreeNode node) { if (node instanceof PackageDependenciesNode) { return ((PackageDependenciesNode) node).getPsiElement(); } return super.exhumeElementFromNode(node); } @Override public Object getData(final String dataId) { final Object data = super.getData(dataId); if (data != null) { return data; } return myViewPanel != null ? myViewPanel.getData(dataId) : null; } @Override public ActionCallback getReady(@NotNull Object requestor) { final ActionCallback callback = myViewPanel.getActionCallback(); return myViewPanel == null ? new ActionCallback.Rejected() : callback != null ? callback : new ActionCallback.Done(); } }