mobile/android/base/util/Clipboard.java@b8a032363ba2 (annotated)
mobile/android/base/util/Clipboard.java
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | package org.mozilla.gecko.util; |
| michael@0 | 6 | |
| michael@0 | 7 | import android.content.ClipData; |
| michael@0 | 8 | import android.content.Context; |
| michael@0 | 9 | import android.os.Build; |
| michael@0 | 10 | import android.util.Log; |
| michael@0 | 11 | |
| michael@0 | 12 | import org.mozilla.gecko.mozglue.generatorannotations.WrapElementForJNI; |
| michael@0 | 13 | |
| michael@0 | 14 | import java.util.concurrent.SynchronousQueue; |
| michael@0 | 15 | |
| michael@0 | 16 | public final class Clipboard { |
| michael@0 | 17 | private static Context mContext; |
| michael@0 | 18 | private final static String LOGTAG = "GeckoClipboard"; |
| michael@0 | 19 | private final static SynchronousQueue<String> sClipboardQueue = new SynchronousQueue<String>(); |
| michael@0 | 20 | |
| michael@0 | 21 | private Clipboard() { |
| michael@0 | 22 | } |
| michael@0 | 23 | |
| michael@0 | 24 | public static void init(final Context c) { |
| michael@0 | 25 | if (mContext != null) { |
| michael@0 | 26 | Log.w(LOGTAG, "Clipboard.init() called twice!"); |
| michael@0 | 27 | return; |
| michael@0 | 28 | } |
| michael@0 | 29 | mContext = c.getApplicationContext(); |
| michael@0 | 30 | } |
| michael@0 | 31 | |
| michael@0 | 32 | @WrapElementForJNI(stubName = "GetClipboardTextWrapper") |
| michael@0 | 33 | public static String getText() { |
| michael@0 | 34 | // If we're on the UI thread or the background thread, we have a looper on the thread |
| michael@0 | 35 | // and can just call this directly. For any other threads, post the call to the |
| michael@0 | 36 | // background thread. |
| michael@0 | 37 | |
| michael@0 | 38 | if (ThreadUtils.isOnUiThread() || ThreadUtils.isOnBackgroundThread()) { |
| michael@0 | 39 | return getClipboardTextImpl(); |
| michael@0 | 40 | } |
| michael@0 | 41 | |
| michael@0 | 42 | ThreadUtils.postToBackgroundThread(new Runnable() { |
| michael@0 | 43 | @Override |
| michael@0 | 44 | public void run() { |
| michael@0 | 45 | String text = getClipboardTextImpl(); |
| michael@0 | 46 | try { |
| michael@0 | 47 | sClipboardQueue.put(text != null ? text : ""); |
| michael@0 | 48 | } catch (InterruptedException ie) {} |
| michael@0 | 49 | } |
| michael@0 | 50 | }); |
| michael@0 | 51 | try { |
| michael@0 | 52 | return sClipboardQueue.take(); |
| michael@0 | 53 | } catch (InterruptedException ie) { |
| michael@0 | 54 | return ""; |
| michael@0 | 55 | } |
| michael@0 | 56 | } |
| michael@0 | 57 | |
| michael@0 | 58 | @WrapElementForJNI(stubName = "SetClipboardText") |
| michael@0 | 59 | public static void setText(final CharSequence text) { |
| michael@0 | 60 | ThreadUtils.postToBackgroundThread(new Runnable() { |
| michael@0 | 61 | @Override |
| michael@0 | 62 | @SuppressWarnings("deprecation") |
| michael@0 | 63 | public void run() { |
| michael@0 | 64 | if (Build.VERSION.SDK_INT >= 11) { |
| michael@0 | 65 | android.content.ClipboardManager cm = getClipboardManager(mContext); |
| michael@0 | 66 | ClipData clip = ClipData.newPlainText("Text", text); |
| michael@0 | 67 | try { |
| michael@0 | 68 | cm.setPrimaryClip(clip); |
| michael@0 | 69 | } catch (NullPointerException e) { |
| michael@0 | 70 | // Bug 776223: This is a Samsung clipboard bug. setPrimaryClip() can throw |
| michael@0 | 71 | // a NullPointerException if Samsung's /data/clipboard directory is full. |
| michael@0 | 72 | // Fortunately, the text is still successfully copied to the clipboard. |
| michael@0 | 73 | } |
| michael@0 | 74 | } else { |
| michael@0 | 75 | android.text.ClipboardManager cm = getDeprecatedClipboardManager(mContext); |
| michael@0 | 76 | cm.setText(text); |
| michael@0 | 77 | } |
| michael@0 | 78 | } |
| michael@0 | 79 | }); |
| michael@0 | 80 | } |
| michael@0 | 81 | |
| michael@0 | 82 | /** |
| michael@0 | 83 | * Returns true if the clipboard is nonempty, false otherwise. |
| michael@0 | 84 | * |
| michael@0 | 85 | * @return true if the clipboard is nonempty, false otherwise. |
| michael@0 | 86 | */ |
| michael@0 | 87 | @WrapElementForJNI |
| michael@0 | 88 | public static boolean hasText() { |
| michael@0 | 89 | if (Build.VERSION.SDK_INT >= 11) { |
| michael@0 | 90 | android.content.ClipboardManager cm = getClipboardManager(mContext); |
| michael@0 | 91 | return cm.hasPrimaryClip(); |
| michael@0 | 92 | } |
| michael@0 | 93 | |
| michael@0 | 94 | android.text.ClipboardManager cm = getDeprecatedClipboardManager(mContext); |
| michael@0 | 95 | return cm.hasText(); |
| michael@0 | 96 | } |
| michael@0 | 97 | |
| michael@0 | 98 | /** |
| michael@0 | 99 | * Deletes all text from the clipboard. |
| michael@0 | 100 | */ |
| michael@0 | 101 | @WrapElementForJNI |
| michael@0 | 102 | public static void clearText() { |
| michael@0 | 103 | setText(null); |
| michael@0 | 104 | } |
| michael@0 | 105 | |
| michael@0 | 106 | private static android.content.ClipboardManager getClipboardManager(Context context) { |
| michael@0 | 107 | // In API Level 11 and above, CLIPBOARD_SERVICE returns android.content.ClipboardManager, |
| michael@0 | 108 | // which is a subclass of android.text.ClipboardManager. |
| michael@0 | 109 | return (android.content.ClipboardManager) mContext.getSystemService(Context.CLIPBOARD_SERVICE); |
| michael@0 | 110 | } |
| michael@0 | 111 | |
| michael@0 | 112 | private static android.text.ClipboardManager getDeprecatedClipboardManager(Context context) { |
| michael@0 | 113 | return (android.text.ClipboardManager) mContext.getSystemService(Context.CLIPBOARD_SERVICE); |
| michael@0 | 114 | } |
| michael@0 | 115 | |
| michael@0 | 116 | /* On some devices, access to the clipboard service needs to happen |
| michael@0 | 117 | * on a thread with a looper, so this function requires a looper is |
| michael@0 | 118 | * present on the thread. */ |
| michael@0 | 119 | @SuppressWarnings("deprecation") |
| michael@0 | 120 | private static String getClipboardTextImpl() { |
| michael@0 | 121 | if (Build.VERSION.SDK_INT >= 11) { |
| michael@0 | 122 | android.content.ClipboardManager cm = getClipboardManager(mContext); |
| michael@0 | 123 | if (cm.hasPrimaryClip()) { |
| michael@0 | 124 | ClipData clip = cm.getPrimaryClip(); |
| michael@0 | 125 | if (clip != null) { |
| michael@0 | 126 | ClipData.Item item = clip.getItemAt(0); |
| michael@0 | 127 | return item.coerceToText(mContext).toString(); |
| michael@0 | 128 | } |
| michael@0 | 129 | } |
| michael@0 | 130 | } else { |
| michael@0 | 131 | android.text.ClipboardManager cm = getDeprecatedClipboardManager(mContext); |
| michael@0 | 132 | if (cm.hasText()) { |
| michael@0 | 133 | return cm.getText().toString(); |
| michael@0 | 134 | } |
| michael@0 | 135 | } |
| michael@0 | 136 | return null; |
| michael@0 | 137 | } |
| michael@0 | 138 | } |
