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Diffstat (limited to 'src/com/android/launcher3/DeferredHandler.java')
-rw-r--r--src/com/android/launcher3/DeferredHandler.java120
1 files changed, 0 insertions, 120 deletions
diff --git a/src/com/android/launcher3/DeferredHandler.java b/src/com/android/launcher3/DeferredHandler.java
deleted file mode 100644
index a43ab6723..000000000
--- a/src/com/android/launcher3/DeferredHandler.java
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher3;
-
-import android.os.Handler;
-import android.os.Looper;
-import android.os.Message;
-import android.os.MessageQueue;
-
-import com.android.launcher3.util.Thunk;
-
-import java.util.LinkedList;
-
-/**
- * Queue of things to run on a looper thread. Items posted with {@link #post} will not
- * be actually enqued on the handler until after the last one has run, to keep from
- * starving the thread.
- *
- * This class is fifo.
- */
-public class DeferredHandler {
- @Thunk LinkedList<Runnable> mQueue = new LinkedList<>();
- private MessageQueue mMessageQueue = Looper.myQueue();
- private Impl mHandler = new Impl();
-
- @Thunk class Impl extends Handler implements MessageQueue.IdleHandler {
- public void handleMessage(Message msg) {
- Runnable r;
- synchronized (mQueue) {
- if (mQueue.size() == 0) {
- return;
- }
- r = mQueue.removeFirst();
- }
- r.run();
- synchronized (mQueue) {
- scheduleNextLocked();
- }
- }
-
- public boolean queueIdle() {
- handleMessage(null);
- return false;
- }
- }
-
- private class IdleRunnable implements Runnable {
- Runnable mRunnable;
-
- IdleRunnable(Runnable r) {
- mRunnable = r;
- }
-
- public void run() {
- mRunnable.run();
- }
- }
-
- public DeferredHandler() {
- }
-
- /** Schedule runnable to run after everything that's on the queue right now. */
- public void post(Runnable runnable) {
- synchronized (mQueue) {
- mQueue.add(runnable);
- if (mQueue.size() == 1) {
- scheduleNextLocked();
- }
- }
- }
-
- /** Schedule runnable to run when the queue goes idle. */
- public void postIdle(final Runnable runnable) {
- post(new IdleRunnable(runnable));
- }
-
- public void cancelAll() {
- synchronized (mQueue) {
- mQueue.clear();
- }
- }
-
- /** Runs all queued Runnables from the calling thread. */
- public void flush() {
- LinkedList<Runnable> queue = new LinkedList<>();
- synchronized (mQueue) {
- queue.addAll(mQueue);
- mQueue.clear();
- }
- for (Runnable r : queue) {
- r.run();
- }
- }
-
- void scheduleNextLocked() {
- if (mQueue.size() > 0) {
- Runnable peek = mQueue.getFirst();
- if (peek instanceof IdleRunnable) {
- mMessageQueue.addIdleHandler(mHandler);
- } else {
- mHandler.sendEmptyMessage(1);
- }
- }
- }
-}
-