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/*
* 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.server;
import android.content.ClippedData;
import android.content.IClipboard;
import android.content.IOnPrimaryClipChangedListener;
import android.content.Context;
import android.os.RemoteCallbackList;
import android.os.RemoteException;
/**
* Implementation of the clipboard for copy and paste.
*/
public class ClipboardService extends IClipboard.Stub {
private ClippedData mPrimaryClip;
private final RemoteCallbackList<IOnPrimaryClipChangedListener> mPrimaryClipListeners
= new RemoteCallbackList<IOnPrimaryClipChangedListener>();
/**
* Instantiates the clipboard.
*/
public ClipboardService(Context context) { }
public void setPrimaryClip(ClippedData clip) {
synchronized (this) {
if (clip != null && clip.getItemCount() <= 0) {
throw new IllegalArgumentException("No items");
}
mPrimaryClip = clip;
final int n = mPrimaryClipListeners.beginBroadcast();
for (int i = 0; i < n; i++) {
try {
mPrimaryClipListeners.getBroadcastItem(i).dispatchPrimaryClipChanged();
} catch (RemoteException e) {
// The RemoteCallbackList will take care of removing
// the dead object for us.
}
}
mPrimaryClipListeners.finishBroadcast();
}
}
public ClippedData getPrimaryClip() {
synchronized (this) {
return mPrimaryClip;
}
}
public boolean hasPrimaryClip() {
synchronized (this) {
return mPrimaryClip != null;
}
}
public void addPrimaryClipChangedListener(IOnPrimaryClipChangedListener listener) {
synchronized (this) {
mPrimaryClipListeners.register(listener);
}
}
public void removePrimaryClipChangedListener(IOnPrimaryClipChangedListener listener) {
synchronized (this) {
mPrimaryClipListeners.unregister(listener);
}
}
public boolean hasClipboardText() {
synchronized (this) {
if (mPrimaryClip != null) {
CharSequence text = mPrimaryClip.getItem(0).getText();
return text != null && text.length() > 0;
}
return false;
}
}
}
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