Rename project

app/src/main/java/eu/kanade/tachiyomi/util/RxPager.java

@@ -0,0 +1,32 @@
+package eu.kanade.tachiyomi.util;
+
+import rx.Observable;
+import rx.subjects.PublishSubject;
+
+public class RxPager {
+
+    private final int initialPageCount;
+    private final PublishSubject<Integer> requests = PublishSubject.create();
+    private int requestedCount;
+
+    public RxPager() {
+        this(1);
+    }
+
+    public RxPager(int initialPageCount) {
+        this.initialPageCount = initialPageCount;
+    }
+
+    public void requestNext(int page) {
+        requests.onNext(page);
+    }
+
+    public Observable<Integer> pages() {
+        return requests
+            .concatMap(targetPage -> targetPage <= requestedCount ?
+                    Observable.<Integer>empty() :
+                    Observable.range(requestedCount, targetPage - requestedCount))
+            .startWith(Observable.range(0, initialPageCount))
+            .doOnNext(it -> requestedCount = it + 1);
+    }
+}