108 lines
2.9 KiB
Java
108 lines
2.9 KiB
Java
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/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.os;
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/**
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* TODO: Make this a public API? Let's see how it goes with a few use
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* cases first.
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* @hide
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*/
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public abstract class RemoteCallback implements Parcelable {
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final Handler mHandler;
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final IRemoteCallback mTarget;
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class DeliverResult implements Runnable {
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final Bundle mResult;
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DeliverResult(Bundle result) {
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mResult = result;
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}
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public void run() {
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onResult(mResult);
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}
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}
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class LocalCallback extends IRemoteCallback.Stub {
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public void sendResult(Bundle bundle) {
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mHandler.post(new DeliverResult(bundle));
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}
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}
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static class RemoteCallbackProxy extends RemoteCallback {
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RemoteCallbackProxy(IRemoteCallback target) {
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super(target);
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}
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protected void onResult(Bundle bundle) {
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}
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}
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public RemoteCallback(Handler handler) {
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mHandler = handler;
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mTarget = new LocalCallback();
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}
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RemoteCallback(IRemoteCallback target) {
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mHandler = null;
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mTarget = target;
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}
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public void sendResult(Bundle bundle) throws RemoteException {
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mTarget.sendResult(bundle);
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}
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protected abstract void onResult(Bundle bundle);
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public boolean equals(Object otherObj) {
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if (otherObj == null) {
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return false;
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}
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try {
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return mTarget.asBinder().equals(((RemoteCallback)otherObj)
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.mTarget.asBinder());
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} catch (ClassCastException e) {
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}
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return false;
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}
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public int hashCode() {
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return mTarget.asBinder().hashCode();
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}
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public int describeContents() {
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return 0;
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}
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public void writeToParcel(Parcel out, int flags) {
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out.writeStrongBinder(mTarget.asBinder());
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}
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public static final Parcelable.Creator<RemoteCallback> CREATOR
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= new Parcelable.Creator<RemoteCallback>() {
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public RemoteCallback createFromParcel(Parcel in) {
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IBinder target = in.readStrongBinder();
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return target != null ? new RemoteCallbackProxy(
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IRemoteCallback.Stub.asInterface(target)) : null;
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}
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public RemoteCallback[] newArray(int size) {
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return new RemoteCallback[size];
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}
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};
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}
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