| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * 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.android.tools.idea.rendering; |
| |
| import com.android.SdkConstants; |
| import com.android.resources.ResourceFolderType; |
| import com.google.common.collect.Maps; |
| import com.intellij.openapi.fileTypes.FileType; |
| import com.intellij.openapi.fileTypes.FileTypeManager; |
| import com.intellij.openapi.fileTypes.StdFileTypes; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.*; |
| import com.intellij.ui.EditorNotifications; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.plugins.groovy.GroovyFileType; |
| |
| import java.util.Map; |
| |
| import static com.android.SdkConstants.EXT_PNG; |
| import static com.android.SdkConstants.FD_RES_RAW; |
| |
| public class PsiProjectListener extends PsiTreeChangeAdapter { |
| |
| @NotNull private static Map<Project, PsiProjectListener> ourListeners = Maps.newHashMap(); |
| @NotNull private final Map<VirtualFile, ResourceFolderRepository> myListeners = Maps.newHashMap(); |
| |
| private PsiProjectListener(@NotNull Project project) { |
| PsiManager.getInstance(project).addPsiTreeChangeListener(this); |
| } |
| |
| public static void addRoot(@NotNull Project project, @NotNull VirtualFile root, @NotNull ResourceFolderRepository repository) { |
| synchronized (PsiProjectListener.class) { |
| getListener(project).addRoot(root, repository); |
| } |
| } |
| |
| public static void removeRoot(@NotNull Project project, @NotNull VirtualFile root, @NotNull ResourceFolderRepository repository) { |
| synchronized (PsiProjectListener.class) { |
| getListener(project).removeRoot(root, repository); |
| } |
| } |
| |
| @NotNull |
| public static PsiProjectListener getListener(@NotNull Project project) { |
| PsiProjectListener listener = ourListeners.get(project); |
| if (listener == null) { |
| listener = new PsiProjectListener(project); |
| ourListeners.put(project, listener); |
| } |
| |
| return listener; |
| } |
| |
| private void addRoot(@NotNull VirtualFile root, @NotNull ResourceFolderRepository repository) { |
| assert myListeners.get(root) == null; // Repositories should be unique. |
| // TODO: Walk up in the chain and make sure they aren't nested either! |
| |
| myListeners.put(root, repository); |
| } |
| |
| private void removeRoot(@NotNull VirtualFile root, @NotNull ResourceFolderRepository repository) { |
| assert myListeners.get(root) == repository : repository; |
| myListeners.remove(root); |
| } |
| |
| static boolean isRelevantFileType(@NotNull FileType fileType) { |
| if (fileType == StdFileTypes.JAVA) { // fail fast for vital file type |
| return false; |
| } |
| return fileType == StdFileTypes.XML || |
| (fileType.isBinary() && fileType == FileTypeManager.getInstance().getFileTypeByExtension(EXT_PNG)); |
| } |
| |
| static boolean isRelevantFile(@NotNull VirtualFile file) { |
| FileType fileType = file.getFileType(); |
| if (fileType == StdFileTypes.JAVA) { |
| return false; |
| } |
| |
| if (isRelevantFileType(fileType)) { |
| return true; |
| } else { |
| VirtualFile parent = file.getParent(); |
| if (parent != null) { |
| String parentName = parent.getName(); |
| if (parentName.startsWith(FD_RES_RAW)) { |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| static boolean isRelevantFile(@NotNull PsiFile file) { |
| FileType fileType = file.getFileType(); |
| if (fileType == StdFileTypes.JAVA) { |
| return false; |
| } |
| |
| if (isRelevantFileType(fileType)) { |
| return true; |
| } else { |
| PsiDirectory parent = file.getParent(); |
| if (parent != null) { |
| String parentName = parent.getName(); |
| if (parentName.startsWith(FD_RES_RAW)) { |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| |
| @Nullable |
| private ResourceFolderRepository findRepository(@Nullable VirtualFile file) { |
| if (file == null) { |
| return null; |
| } |
| while (file != null) { |
| ResourceFolderRepository repository = myListeners.get(file); |
| if (repository != null) { |
| return repository; |
| } |
| |
| file = file.getParent(); |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public void childAdded(@NotNull PsiTreeChangeEvent event) { |
| PsiFile psiFile = event.getFile(); |
| if (psiFile == null) { |
| PsiElement child = event.getChild(); |
| if (child instanceof PsiFile) { |
| VirtualFile file = ((PsiFile)child).getVirtualFile(); |
| if (file != null && isRelevantFile(file)) { |
| dispatchChildAdded(event, file); |
| } |
| } else if (child instanceof PsiDirectory) { |
| PsiDirectory directory = (PsiDirectory)child; |
| dispatchChildAdded(event, directory.getVirtualFile()); |
| } |
| } else if (isRelevantFile(psiFile)) { |
| dispatchChildAdded(event, psiFile.getVirtualFile()); |
| } else if (isGradleFileEdit(psiFile)) { |
| notifyGradleEdit(psiFile); |
| } |
| } |
| |
| private void dispatchChildAdded(@NotNull PsiTreeChangeEvent event, @Nullable VirtualFile virtualFile) { |
| ResourceFolderRepository repository = findRepository(virtualFile); |
| if (repository != null) { |
| repository.getPsiListener().childAdded(event); |
| } |
| } |
| |
| @Override |
| public void childRemoved(@NotNull PsiTreeChangeEvent event) { |
| PsiFile psiFile = event.getFile(); |
| if (psiFile == null) { |
| PsiElement child = event.getChild(); |
| if (child instanceof PsiFile) { |
| VirtualFile file = ((PsiFile)child).getVirtualFile(); |
| if (file != null && isRelevantFile(file)) { |
| dispatchChildRemoved(event, file); |
| } |
| } else if (child instanceof PsiDirectory) { |
| PsiDirectory directory = (PsiDirectory)child; |
| if (ResourceFolderType.getFolderType(directory.getName()) != null) { |
| VirtualFile file = directory.getVirtualFile(); |
| dispatchChildRemoved(event, file); |
| } |
| } |
| } else if (isRelevantFile(psiFile)) { |
| VirtualFile file = psiFile.getVirtualFile(); |
| dispatchChildRemoved(event, file); |
| } else if (isGradleFileEdit(psiFile)) { |
| notifyGradleEdit(psiFile); |
| } |
| } |
| |
| private void dispatchChildRemoved(@NotNull PsiTreeChangeEvent event, @Nullable VirtualFile virtualFile) { |
| ResourceFolderRepository repository = findRepository(virtualFile); |
| if (repository != null) { |
| repository.getPsiListener().childRemoved(event); |
| } |
| } |
| |
| @Override |
| public void childReplaced(@NotNull PsiTreeChangeEvent event) { |
| PsiFile psiFile = event.getFile(); |
| if (psiFile != null) { |
| if (isRelevantFile(psiFile)) { |
| dispatchChildReplaced(event, psiFile.getVirtualFile()); |
| } else if (isGradleFileEdit(psiFile)) { |
| notifyGradleEdit(psiFile); |
| } |
| } else { |
| PsiElement parent = event.getParent(); |
| if (parent instanceof PsiDirectory) { |
| PsiDirectory directory = (PsiDirectory)parent; |
| dispatchChildReplaced(event, directory.getVirtualFile()); |
| } |
| } |
| } |
| |
| private void dispatchChildReplaced(@NotNull PsiTreeChangeEvent event, @Nullable VirtualFile virtualFile) { |
| ResourceFolderRepository repository = findRepository(virtualFile); |
| if (repository != null) { |
| repository.getPsiListener().childReplaced(event); |
| } |
| } |
| |
| private static boolean isGradleFileEdit(@NotNull PsiFile psiFile) { |
| if (psiFile.getFileType() == GroovyFileType.GROOVY_FILE_TYPE) { |
| VirtualFile virtualFile = psiFile.getVirtualFile(); |
| if (virtualFile != null && SdkConstants.EXT_GRADLE.equals(virtualFile.getExtension())) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| private static void notifyGradleEdit(@NotNull PsiFile psiFile) { |
| EditorNotifications.getInstance(psiFile.getProject()).updateAllNotifications(); |
| } |
| |
| @Override |
| public void childrenChanged(@NotNull PsiTreeChangeEvent event) { |
| PsiFile psiFile = event.getFile(); |
| if (psiFile != null && isRelevantFile(psiFile)) { |
| VirtualFile file = psiFile.getVirtualFile(); |
| dispatchChildrenChanged(event, file); |
| } |
| } |
| |
| private void dispatchChildrenChanged(@NotNull PsiTreeChangeEvent event, @Nullable VirtualFile virtualFile) { |
| ResourceFolderRepository repository = findRepository(virtualFile); |
| if (repository != null) { |
| repository.getPsiListener().childrenChanged(event); |
| } |
| } |
| |
| @Override |
| public void childMoved(@NotNull PsiTreeChangeEvent event) { |
| PsiElement child = event.getChild(); |
| PsiFile psiFile = event.getFile(); |
| if (psiFile == null) { |
| if (child instanceof PsiFile && isRelevantFile((PsiFile)child)) { |
| VirtualFile file = ((PsiFile)child).getVirtualFile(); |
| if (file != null) { |
| dispatchChildMoved(event, file); |
| return; |
| } |
| |
| PsiElement oldParent = event.getOldParent(); |
| if (oldParent instanceof PsiDirectory) { |
| PsiDirectory directory = (PsiDirectory)oldParent; |
| VirtualFile dir = directory.getVirtualFile(); |
| dispatchChildMoved(event, dir); |
| } |
| } |
| } else { |
| // Change inside a file |
| VirtualFile file = psiFile.getVirtualFile(); |
| if (file != null && isRelevantFile(file)) { |
| dispatchChildMoved(event, file); |
| } |
| } |
| } |
| |
| private void dispatchChildMoved(@NotNull PsiTreeChangeEvent event, @Nullable VirtualFile virtualFile) { |
| ResourceFolderRepository repository = findRepository(virtualFile); |
| if (repository != null) { |
| repository.getPsiListener().childMoved(event); |
| } |
| |
| // If you moved the file between resource directories, potentially notify that previous repository as well |
| if (event.getFile() == null) { |
| PsiElement oldParent = event.getOldParent(); |
| if (oldParent instanceof PsiDirectory) { |
| PsiDirectory sourceDir = (PsiDirectory)oldParent; |
| ResourceFolderRepository targetRepository = findRepository(sourceDir.getVirtualFile()); |
| if (targetRepository != null && targetRepository != repository) { |
| targetRepository.getPsiListener().childMoved(event); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void beforePropertyChange(@NotNull PsiTreeChangeEvent event) { |
| if (PsiTreeChangeEvent.PROP_FILE_NAME == event.getPropertyName()) { |
| PsiElement child = event.getChild(); |
| if (child instanceof PsiFile) { |
| PsiFile psiFile = (PsiFile)child; |
| if (isRelevantFile(psiFile)) { |
| VirtualFile file = psiFile.getVirtualFile(); |
| dispatchBeforePropertyChange(event, file); |
| } |
| } |
| } |
| } |
| |
| private void dispatchBeforePropertyChange(@NotNull PsiTreeChangeEvent event, @Nullable VirtualFile virtualFile) { |
| ResourceFolderRepository repository = findRepository(virtualFile); |
| if (repository != null) { |
| repository.getPsiListener().beforePropertyChange(event); |
| } |
| } |
| |
| @Override |
| public void propertyChanged(@NotNull PsiTreeChangeEvent event) { |
| if (PsiTreeChangeEvent.PROP_FILE_NAME == event.getPropertyName()) { |
| PsiElement child = event.getElement(); |
| if (child instanceof PsiFile) { |
| PsiFile psiFile = (PsiFile)child; |
| if (isRelevantFile(psiFile)) { |
| VirtualFile file = psiFile.getVirtualFile(); |
| dispatchPropertyChange(event, file); |
| } |
| } |
| } |
| |
| // TODO: Do we need to handle PROP_DIRECTORY_NAME for users renaming any of the resource folders? |
| // and what about PROP_FILE_TYPES -- can users change the type of an XML File to something else? |
| } |
| |
| private void dispatchPropertyChange(@NotNull PsiTreeChangeEvent event, @Nullable VirtualFile virtualFile) { |
| ResourceFolderRepository repository = findRepository(virtualFile); |
| if (repository != null) { |
| repository.getPsiListener().propertyChanged(event); |
| } |
| } |
| } |
| |