/**
* Asks user to perform "save layer" operations (save on disk and/or upload data to server) before
* data layers deletion.
*
* @param selectedLayers The layers to check. Only instances of {@link AbstractModifiableLayer}
* are considered.
* @param reason the cause for requesting an action on unsaved modifications
* @return {@code true} if there was nothing to save, or if the user wants to proceed to save
* operations. {@code false} if the user cancels.
* @since 11093
*/
public static boolean saveUnsavedModifications(
Iterable<? extends Layer> selectedLayers, Reason reason) {
if (!GraphicsEnvironment.isHeadless()) {
SaveLayersDialog dialog = new SaveLayersDialog(Main.parent);
List<AbstractModifiableLayer> layersWithUnmodifiedChanges = new ArrayList<>();
for (Layer l : selectedLayers) {
if (!(l instanceof AbstractModifiableLayer)) {
continue;
}
AbstractModifiableLayer odl = (AbstractModifiableLayer) l;
if (odl.isModified()
&& ((!odl.isSavable() && !odl.isUploadable())
|| odl.requiresSaveToFile()
|| (odl.requiresUploadToServer() && !odl.isUploadDiscouraged()))) {
layersWithUnmodifiedChanges.add(odl);
}
}
dialog.prepareForSavingAndUpdatingLayers(reason);
if (!layersWithUnmodifiedChanges.isEmpty()) {
dialog.getModel().populate(layersWithUnmodifiedChanges);
dialog.setVisible(true);
switch (dialog.getUserAction()) {
case PROCEED:
return true;
case CANCEL:
default:
return false;
}
}
}
return true;
}
