| /* |
| * Copyright 2000-2009 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.favoritesTreeView; |
| |
| import com.intellij.ide.projectView.ViewSettings; |
| import com.intellij.ide.util.treeView.AbstractTreeNode; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.extensions.ExtensionPointName; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.PsiElement; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.Collection; |
| |
| /** |
| * Returns the nodes which should be added to the Favorites for the given data context. |
| * Implementations of this class must be registered as extensions for |
| * <code>com.intellij.favoriteNodeProvider</code> extension point. |
| * |
| * @author yole |
| */ |
| public abstract class FavoriteNodeProvider { |
| public static final ExtensionPointName<FavoriteNodeProvider> EP_NAME = new ExtensionPointName<FavoriteNodeProvider>("com.intellij.favoriteNodeProvider"); |
| |
| @Nullable |
| public abstract Collection<AbstractTreeNode> getFavoriteNodes(DataContext context, final ViewSettings viewSettings); |
| |
| @Nullable |
| public AbstractTreeNode createNode(final Project project, final Object element, final ViewSettings viewSettings) { |
| return null; |
| } |
| |
| /** |
| * Checks if the specified project view node element (the value of {@link AbstractTreeNode}) contains |
| * the specified virtual file as one of its children. |
| * |
| * @param element the value element of a project view node. |
| * @param vFile the file to check. |
| * @return true if the file is contained, false if not or if <code>element</code> is not an element supported by this provider. |
| */ |
| public abstract boolean elementContainsFile(final Object element, final VirtualFile vFile); |
| |
| /** |
| * Returns the weight of the specified project view node element to use when sorting the favorites list. |
| * |
| * @param element the element for which the weight is requested. |
| * @param isSortByType |
| * @return the weight, or -1 if <code>element</code> is not an element supported by this provider. |
| */ |
| public abstract int getElementWeight(final Object element, final boolean isSortByType); |
| |
| /** |
| * Returns the location text (grey text in parentheses) to display in the Favorites view for the specified element. |
| * |
| * @param element the element for which the location is requested. |
| * @return the location text, or -1 if <code>element</code> is not an element supported by this provider. |
| */ |
| @Nullable |
| public abstract String getElementLocation(final Object element); |
| |
| /** |
| * Checks if the specified element is invalid and needs to be removed from the tree. |
| * |
| * @param element the element to check. |
| * @return true if the element is invalid, false if the element is valid or not supported by this provider. |
| */ |
| public abstract boolean isInvalidElement(final Object element); |
| |
| /** |
| * Returns the identifier used to persist favorites for this provider. |
| * |
| * @return the string identifier. |
| */ |
| @NotNull @NonNls |
| public abstract String getFavoriteTypeId(); |
| |
| /** |
| * Returns the persistable URL for the specified element. |
| * |
| * @param element |
| * @return the URL, or null if the element is not supported by this provider. |
| */ |
| @Nullable @NonNls |
| public abstract String getElementUrl(final Object element); |
| |
| /** |
| * Returns the name of the module containing the specified element. |
| * |
| * @param element |
| * @return the name of the module, or null if the element is not supported by this provider or the module name is unknown. |
| */ |
| @Nullable |
| public abstract String getElementModuleName(final Object element); |
| |
| /** |
| * Returns the path of node objects to be added to the favorites tree for the specified persisted URL and module name. |
| * |
| * @param project the project to which the favorite is related. |
| * @param url the loaded URL (initially returned from {@link #getElementUrl }). |
| * @param moduleName the name of the module containing the element (initially returned from {@link #getElementModuleName}) |
| * @return the path of objects to be added to the tree, or null if it was not possible to locate an object with the |
| * specified URL. |
| */ |
| @Nullable |
| public abstract Object[] createPathFromUrl(final Project project, final String url, final String moduleName); |
| |
| @Nullable |
| public PsiElement getPsiElement(final Object element) { |
| if (element instanceof PsiElement) { |
| return (PsiElement)element; |
| } |
| return null; |
| } |
| } |