!7

cm ImagesInDirectory extends DynSCP {
  File dir;

  transient DynamicHStack buttons;
  transient ButtonImageLoader imageLoader;
  
  start {
    ownResource(vmBus_onDirChange(dir, r updateButtons));
  }

  JComponent visualize2() {
    print("dir: " + dir);
    if (dir == null)
      ret jHandleFileDrop(jcenteredbutton("Select directory...", rThread select), voidfunc(File f) { setDir(f) });
    else {
      setDir(dir);
      ret getComponent();
    }
  }
  
  void select {
    temp enter();
    selectDir(voidfunc(File dir) { setDir(dir) });
  }
  
  void setDir(File dir) {
    temp enter();
    setField(+dir);

    buttons = makeNiceButtons();
    imageLoader = new ButtonImageLoader(buttons);
    updateButtons();
    setComponent(jHigherScrollPane(jfullcenter(buttons)));
  }
  
  void updateButtons {
    if (dir == null || buttons == null) ret;
    temp enter();
    L<File> imageFiles = listImageFiles(dir);
    L<TextImageAction> l = filesForNiceButtons(sortFilesByDate(
      imageFiles), lambda1 showImage);
    for (final TextImageAction tia : l)
      tia.popupMenuMaker = imageFilesPopupMenuFunction(tia);
    replaceNiceButtons(buttons, l);
    setModuleName(
      n2(l, "image") + " in directory " + fileName(dir));
    if (imageLoader != null) imageLoader.update();
  }
}

Began life as a copy of #1015922