/** Refresh the editor list. Any stale items are removed. Only restored items are considered. */
public void refresh() {
Iterator iter = fifoList.iterator();
while (iter.hasNext()) {
EditorHistoryItem item = (EditorHistoryItem) iter.next();
if (item.isRestored()) {
IEditorInput input = item.getInput();
if (input != null && !input.exists()) {
iter.remove();
}
}
}
}
/** Adds an item to the history. */
private void add(EditorHistoryItem newItem, int index) {
// Remove the item if it already exists so that it will be put
// at the top of the list.
if (newItem.isRestored()) {
remove(newItem.getInput());
}
// Remove the oldest one
if (fifoList.size() == MAX_SIZE) {
fifoList.remove(MAX_SIZE - 1);
}
// Add the new item.
fifoList.add(index < MAX_SIZE ? index : MAX_SIZE - 1, newItem);
}