1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/base/util/Clipboard.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,138 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +package org.mozilla.gecko.util;
1.9 +
1.10 +import android.content.ClipData;
1.11 +import android.content.Context;
1.12 +import android.os.Build;
1.13 +import android.util.Log;
1.14 +
1.15 +import org.mozilla.gecko.mozglue.generatorannotations.WrapElementForJNI;
1.16 +
1.17 +import java.util.concurrent.SynchronousQueue;
1.18 +
1.19 +public final class Clipboard {
1.20 + private static Context mContext;
1.21 + private final static String LOGTAG = "GeckoClipboard";
1.22 + private final static SynchronousQueue<String> sClipboardQueue = new SynchronousQueue<String>();
1.23 +
1.24 + private Clipboard() {
1.25 + }
1.26 +
1.27 + public static void init(final Context c) {
1.28 + if (mContext != null) {
1.29 + Log.w(LOGTAG, "Clipboard.init() called twice!");
1.30 + return;
1.31 + }
1.32 + mContext = c.getApplicationContext();
1.33 + }
1.34 +
1.35 + @WrapElementForJNI(stubName = "GetClipboardTextWrapper")
1.36 + public static String getText() {
1.37 + // If we're on the UI thread or the background thread, we have a looper on the thread
1.38 + // and can just call this directly. For any other threads, post the call to the
1.39 + // background thread.
1.40 +
1.41 + if (ThreadUtils.isOnUiThread() || ThreadUtils.isOnBackgroundThread()) {
1.42 + return getClipboardTextImpl();
1.43 + }
1.44 +
1.45 + ThreadUtils.postToBackgroundThread(new Runnable() {
1.46 + @Override
1.47 + public void run() {
1.48 + String text = getClipboardTextImpl();
1.49 + try {
1.50 + sClipboardQueue.put(text != null ? text : "");
1.51 + } catch (InterruptedException ie) {}
1.52 + }
1.53 + });
1.54 + try {
1.55 + return sClipboardQueue.take();
1.56 + } catch (InterruptedException ie) {
1.57 + return "";
1.58 + }
1.59 + }
1.60 +
1.61 + @WrapElementForJNI(stubName = "SetClipboardText")
1.62 + public static void setText(final CharSequence text) {
1.63 + ThreadUtils.postToBackgroundThread(new Runnable() {
1.64 + @Override
1.65 + @SuppressWarnings("deprecation")
1.66 + public void run() {
1.67 + if (Build.VERSION.SDK_INT >= 11) {
1.68 + android.content.ClipboardManager cm = getClipboardManager(mContext);
1.69 + ClipData clip = ClipData.newPlainText("Text", text);
1.70 + try {
1.71 + cm.setPrimaryClip(clip);
1.72 + } catch (NullPointerException e) {
1.73 + // Bug 776223: This is a Samsung clipboard bug. setPrimaryClip() can throw
1.74 + // a NullPointerException if Samsung's /data/clipboard directory is full.
1.75 + // Fortunately, the text is still successfully copied to the clipboard.
1.76 + }
1.77 + } else {
1.78 + android.text.ClipboardManager cm = getDeprecatedClipboardManager(mContext);
1.79 + cm.setText(text);
1.80 + }
1.81 + }
1.82 + });
1.83 + }
1.84 +
1.85 + /**
1.86 + * Returns true if the clipboard is nonempty, false otherwise.
1.87 + *
1.88 + * @return true if the clipboard is nonempty, false otherwise.
1.89 + */
1.90 + @WrapElementForJNI
1.91 + public static boolean hasText() {
1.92 + if (Build.VERSION.SDK_INT >= 11) {
1.93 + android.content.ClipboardManager cm = getClipboardManager(mContext);
1.94 + return cm.hasPrimaryClip();
1.95 + }
1.96 +
1.97 + android.text.ClipboardManager cm = getDeprecatedClipboardManager(mContext);
1.98 + return cm.hasText();
1.99 + }
1.100 +
1.101 + /**
1.102 + * Deletes all text from the clipboard.
1.103 + */
1.104 + @WrapElementForJNI
1.105 + public static void clearText() {
1.106 + setText(null);
1.107 + }
1.108 +
1.109 + private static android.content.ClipboardManager getClipboardManager(Context context) {
1.110 + // In API Level 11 and above, CLIPBOARD_SERVICE returns android.content.ClipboardManager,
1.111 + // which is a subclass of android.text.ClipboardManager.
1.112 + return (android.content.ClipboardManager) mContext.getSystemService(Context.CLIPBOARD_SERVICE);
1.113 + }
1.114 +
1.115 + private static android.text.ClipboardManager getDeprecatedClipboardManager(Context context) {
1.116 + return (android.text.ClipboardManager) mContext.getSystemService(Context.CLIPBOARD_SERVICE);
1.117 + }
1.118 +
1.119 + /* On some devices, access to the clipboard service needs to happen
1.120 + * on a thread with a looper, so this function requires a looper is
1.121 + * present on the thread. */
1.122 + @SuppressWarnings("deprecation")
1.123 + private static String getClipboardTextImpl() {
1.124 + if (Build.VERSION.SDK_INT >= 11) {
1.125 + android.content.ClipboardManager cm = getClipboardManager(mContext);
1.126 + if (cm.hasPrimaryClip()) {
1.127 + ClipData clip = cm.getPrimaryClip();
1.128 + if (clip != null) {
1.129 + ClipData.Item item = clip.getItemAt(0);
1.130 + return item.coerceToText(mContext).toString();
1.131 + }
1.132 + }
1.133 + } else {
1.134 + android.text.ClipboardManager cm = getDeprecatedClipboardManager(mContext);
1.135 + if (cm.hasText()) {
1.136 + return cm.getText().toString();
1.137 + }
1.138 + }
1.139 + return null;
1.140 + }
1.141 +}
