1 files changed, 47 insertions, 0 deletions
diff --git a/sandbox/testAppNevena/Front/node_modules/rxjs/src/internal/scheduler/AnimationFrameAction.ts b/sandbox/testAppNevena/Front/node_modules/rxjs/src/internal/scheduler/AnimationFrameAction.ts
new file mode 100644
index 00000000..e9ea64fa
--- /dev/null
+++ b/sandbox/testAppNevena/Front/node_modules/rxjs/src/internal/scheduler/AnimationFrameAction.ts
@@ -0,0 +1,47 @@
+import { AsyncAction } from './AsyncAction';
+import { AnimationFrameScheduler } from './AnimationFrameScheduler';
+import { SchedulerAction } from '../types';
+
+/**
+ * We need this JSDoc comment for affecting ESDoc.
+ * @ignore
+ * @extends {Ignored}
+ */
+export class AnimationFrameAction<T> extends AsyncAction<T> {
+
+  constructor(protected scheduler: AnimationFrameScheduler,
+              protected work: (this: SchedulerAction<T>, state?: T) => void) {
+    super(scheduler, work);
+  }
+
+  protected requestAsyncId(scheduler: AnimationFrameScheduler, id?: any, delay: number = 0): any {
+    // If delay is greater than 0, request as an async action.
+    if (delay !== null && delay > 0) {
+      return super.requestAsyncId(scheduler, id, delay);
+    }
+    // Push the action to the end of the scheduler queue.
+    scheduler.actions.push(this);
+    // If an animation frame has already been requested, don't request another
+    // one. If an animation frame hasn't been requested yet, request one. Return
+    // the current animation frame request id.
+    return scheduler.scheduled || (scheduler.scheduled = requestAnimationFrame(
+      () => scheduler.flush(null)));
+  }
+  protected recycleAsyncId(scheduler: AnimationFrameScheduler, id?: any, delay: number = 0): any {
+    // If delay exists and is greater than 0, or if the delay is null (the
+    // action wasn't rescheduled) but was originally scheduled as an async
+    // action, then recycle as an async action.
+    if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) {
+      return super.recycleAsyncId(scheduler, id, delay);
+    }
+    // If the scheduler queue is empty, cancel the requested animation frame and
+    // set the scheduled flag to undefined so the next AnimationFrameAction will
+    // request its own.
+    if (scheduler.actions.length === 0) {
+      cancelAnimationFrame(id);
+      scheduler.scheduled = undefined;
+    }
+    // Return undefined so the action knows to request a new async id if it's rescheduled.
+    return undefined;
+  }
+}