platform-api/src/com/intellij/openapi/fileChooser/FileSaverDescriptor.java

   1 package com.intellij.openapi.fileChooser;
   2
   3 import com.intellij.openapi.vfs.VirtualFile;
   4 import org.jetbrains.annotations.NotNull;
   5
   6 import java.util.Arrays;
   7 import java.util.List;
   8
   9 /**
  10  * Defines save dialog behaviour
  11  *
  12  * @author Konstantin Bulenkov
  13  * @see FileSaverDialog
  14  * @see FileChooserDescriptor
  15  * @since 9.0
  16  */
  17 public class FileSaverDescriptor extends FileChooserDescriptor implements Cloneable {
  18   private final List<String> extentions;
  19
  20   /**
  21    * Constructs save dialog properties
  22    *
  23    * @param title save dialog text title (not window title)
  24    * @param description description
  25    * @param extentions accepted file extentions: "txt", "jpg", etc. Accept all if empty
  26    */
  27   public FileSaverDescriptor(@NotNull String title, @NotNull String description, String... extentions) {
  28     super(true, true, true, true, false, false);
  29     setTitle(title);
  30     setDescription(description);
  31     this.extentions = Arrays.asList(extentions);
  32   }
  33
  34   @Override
  35   public boolean isFileVisible(VirtualFile file, boolean showHiddenFiles) {
  36     return extentions.isEmpty() || file.isDirectory() ?
  37            super.isFileVisible(file, showHiddenFiles)
  38            :
  39            extentions.contains(file.getExtension());
  40   }
  41
  42   /**
  43    * Returns accepted file extentions
  44    *
  45    * @return accepted file extentions
  46    */
  47   public String[] getFileExtentions() {
  48     return extentions.toArray(new String[extentions.size()]);
  49   }
  50 }