| Index: client/samples/swarm/BiIterator.dart
|
| ===================================================================
|
| --- client/samples/swarm/BiIterator.dart (revision 3770)
|
| +++ client/samples/swarm/BiIterator.dart (working copy)
|
| @@ -1,67 +0,0 @@
|
| -/**
|
| - * An iterator that allows the user to move forward and backward though
|
| - * a set of items. (Bi-directional)
|
| - */
|
| -class BiIterator<E> {
|
| -
|
| - /**
|
| - * Provides forward and backward iterator functionality to keep track
|
| - * which item is currently selected.
|
| - */
|
| - ObservableValue<int> currentIndex;
|
| -
|
| - /**
|
| - * The collection of items we will be iterating through.
|
| - */
|
| - List<E> list;
|
| -
|
| - BiIterator(this.list, [List<ChangeListener> oldListeners = null])
|
| - : currentIndex = new ObservableValue<int>(0) {
|
| - if (oldListeners != null) {
|
| - currentIndex.listeners = oldListeners;
|
| - }
|
| - }
|
| -
|
| - /**
|
| - * Returns the next section from the sections, given the current
|
| - * position. Returns the last source if there is no next section.
|
| - */
|
| - E next() {
|
| - if (currentIndex.value < list.length - 1) {
|
| - currentIndex.value += 1;
|
| - }
|
| - return list[currentIndex.value];
|
| - }
|
| -
|
| - /**
|
| - * Returns the current Section (page in the UI) that the user is
|
| - * looking at.
|
| - */
|
| - E get current() {
|
| - return list[currentIndex.value];
|
| - }
|
| -
|
| - /**
|
| - * Returns the previous section from the sections, given the current
|
| - * position. Returns the front section if we are already at the front of
|
| - * the list.
|
| - */
|
| - E previous() {
|
| - if (currentIndex.value > 0) {
|
| - currentIndex.value -= 1;
|
| - }
|
| - return list[currentIndex.value];
|
| - }
|
| -
|
| - /**
|
| - * Move the iterator pointer over so that it points to a given list item.
|
| - */
|
| - void jumpToValue(E val) {
|
| - for (int i = 0; i < list.length; i++) {
|
| - if (list[i] === val) {
|
| - currentIndex.value = i;
|
| - break;
|
| - }
|
| - }
|
| - }
|
| -}
|
|
|