platform/lang-impl/src/com/intellij/ide/FileListPasteProvider.java

   1 package com.intellij.ide;
   2
   3 import com.intellij.openapi.actionSystem.DataContext;
   4 import com.intellij.openapi.actionSystem.LangDataKeys;
   5 import com.intellij.openapi.ide.CopyPasteManager;
   6 import com.intellij.openapi.project.Project;
   7 import com.intellij.openapi.vfs.LocalFileSystem;
   8 import com.intellij.openapi.vfs.VirtualFile;
   9 import com.intellij.psi.PsiDirectory;
  10 import com.intellij.psi.PsiElement;
  11 import com.intellij.psi.PsiFileSystemItem;
  12 import com.intellij.psi.PsiManager;
  13 import com.intellij.refactoring.copy.CopyFilesOrDirectoriesHandler;
  14
  15 import java.awt.datatransfer.DataFlavor;
  16 import java.awt.datatransfer.Transferable;
  17 import java.awt.datatransfer.UnsupportedFlavorException;
  18 import java.io.File;
  19 import java.io.IOException;
  20 import java.util.ArrayList;
  21 import java.util.List;
  22
  23 /**
  24  * @author yole
  25  */
  26 public class FileListPasteProvider implements PasteProvider {
  27   public void performPaste(DataContext dataContext) {
  28     Project project = LangDataKeys.PROJECT.getData(dataContext);
  29     final IdeView ideView = LangDataKeys.IDE_VIEW.getData(dataContext);
  30     if (project == null || ideView == null) return;
  31     List<File> fileList;
  32     try {
  33       final Transferable contents = CopyPasteManager.getInstance().getContents();
  34       //noinspection unchecked
  35       fileList = (List<File>)contents.getTransferData(DataFlavor.javaFileListFlavor);
  36     }
  37     catch (UnsupportedFlavorException e) {
  38       return;
  39     }
  40     catch (IOException e) {
  41       return;
  42     }
  43     List<PsiElement> elements = new ArrayList<PsiElement>();
  44     for (File file : fileList) {
  45       final VirtualFile vFile = LocalFileSystem.getInstance().refreshAndFindFileByIoFile(file);
  46       if (vFile != null) {
  47         final PsiManager instance = PsiManager.getInstance(project);
  48         PsiFileSystemItem item = vFile.isDirectory() ? instance.findDirectory(vFile) : instance.findFile(vFile);
  49         if (item != null) {
  50           elements.add(item);
  51         }
  52       }
  53     }
  54     if (elements.size() > 0) {
  55       final PsiDirectory dir = ideView.getOrChooseDirectory();
  56       if (dir != null) {
  57         new CopyFilesOrDirectoriesHandler().doCopy(elements.toArray(new PsiElement[elements.size()]), dir);
  58       }
  59     }
  60   }
  61
  62   public boolean isPastePossible(DataContext dataContext) {
  63     return true;
  64   }
  65
  66   public boolean isPasteEnabled(DataContext dataContext) {
  67     final Transferable contents = CopyPasteManager.getInstance().getContents();
  68     final IdeView ideView = LangDataKeys.IDE_VIEW.getData(dataContext);
  69     return contents.isDataFlavorSupported(DataFlavor.javaFileListFlavor) && ideView != null;
  70   }
  71 }