diff options
Diffstat (limited to 'mobile/android/geckoview/src/main/java/org/mozilla/gecko/Clipboard.java')
| -rw-r--r-- | mobile/android/geckoview/src/main/java/org/mozilla/gecko/Clipboard.java | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/mobile/android/geckoview/src/main/java/org/mozilla/gecko/Clipboard.java b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/Clipboard.java new file mode 100644 index 0000000000..525a85f4da --- /dev/null +++ b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/Clipboard.java @@ -0,0 +1,181 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +package org.mozilla.gecko; + +import android.content.ClipData; +import android.content.ClipDescription; +import android.content.ClipboardManager; +import android.content.Context; +import android.os.Build; +import android.text.TextUtils; +import android.util.Log; +import org.mozilla.gecko.annotation.WrapForJNI; + +public final class Clipboard { + private static final String HTML_MIME = "text/html"; + private static final String PLAINTEXT_MIME = "text/plain"; + private static final String LOGTAG = "GeckoClipboard"; + + private Clipboard() {} + + /** + * Get the text on the primary clip on Android clipboard + * + * @param context application context. + * @return a plain text string of clipboard data. + */ + public static String getText(final Context context) { + return getData(context, PLAINTEXT_MIME); + } + + /** + * Get the data on the primary clip on clipboard + * + * @param context application context + * @param mimeType the mime type we want. This supports text/html and text/plain only. If other + * type, we do nothing. + * @return a string into clipboard. + */ + @WrapForJNI(calledFrom = "gecko") + public static String getData(final Context context, final String mimeType) { + final ClipboardManager cm = + (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE); + if (cm.hasPrimaryClip()) { + final ClipData clip = cm.getPrimaryClip(); + if (clip == null || clip.getItemCount() == 0) { + return null; + } + + final ClipDescription description = clip.getDescription(); + if (HTML_MIME.equals(mimeType) + && description.hasMimeType(ClipDescription.MIMETYPE_TEXT_HTML)) { + final CharSequence data = clip.getItemAt(0).getHtmlText(); + if (data == null) { + return null; + } + return data.toString(); + } + if (PLAINTEXT_MIME.equals(mimeType)) { + try { + return clip.getItemAt(0).coerceToText(context).toString(); + } catch (final SecurityException e) { + Log.e(LOGTAG, "Couldn't get clip data from clipboard", e); + } + } + } + return null; + } + + /** + * Set plain text to clipboard + * + * @param context application context + * @param text a plain text to set to clipboard + * @return true if copy is successful. + */ + @WrapForJNI(calledFrom = "gecko") + public static boolean setText(final Context context, final CharSequence text) { + return setData(context, ClipData.newPlainText("text", text)); + } + + /** + * Store HTML to clipboard + * + * @param context application context + * @param text a plain text to set to clipboard + * @param html a html text to set to clipboard + * @return true if copy is successful. + */ + @WrapForJNI(calledFrom = "gecko") + public static boolean setHTML( + final Context context, final CharSequence text, final String htmlText) { + return setData(context, ClipData.newHtmlText("html", text, htmlText)); + } + + /** + * Store {@link android.content.ClipData} to clipboard + * + * @param context application context + * @param clipData a {@link android.content.ClipData} to set to clipboard + * @return true if copy is successful. + */ + private static boolean setData(final Context context, final ClipData clipData) { + // In API Level 11 and above, CLIPBOARD_SERVICE returns android.content.ClipboardManager, + // which is a subclass of android.text.ClipboardManager. + final ClipboardManager cm = + (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE); + try { + cm.setPrimaryClip(clipData); + } catch (final NullPointerException e) { + // Bug 776223: This is a Samsung clipboard bug. setPrimaryClip() can throw + // a NullPointerException if Samsung's /data/clipboard directory is full. + // Fortunately, the text is still successfully copied to the clipboard. + } catch (final RuntimeException e) { + // If clipData is too large, TransactionTooLargeException occurs. + Log.e(LOGTAG, "Couldn't set clip data to clipboard", e); + return false; + } + return true; + } + + /** + * Check whether primary clipboard has given MIME type. + * + * @param context application context + * @param mimeType MIME type + * @return true if the clipboard is nonempty, false otherwise. + */ + @WrapForJNI(calledFrom = "gecko") + public static boolean hasData(final Context context, final String mimeType) { + if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.P) { + if (HTML_MIME.equals(mimeType) || PLAINTEXT_MIME.equals(mimeType)) { + return !TextUtils.isEmpty(getData(context, mimeType)); + } + return false; + } + + // Calling getPrimaryClip causes a toast message from Android 12. + // https://developer.android.com/about/versions/12/behavior-changes-all#clipboard-access-notifications + + final ClipboardManager cm = + (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE); + + if (!cm.hasPrimaryClip()) { + return false; + } + + final ClipDescription description = cm.getPrimaryClipDescription(); + if (description == null) { + return false; + } + + if (HTML_MIME.equals(mimeType)) { + return description.hasMimeType(ClipDescription.MIMETYPE_TEXT_HTML); + } + + if (PLAINTEXT_MIME.equals(mimeType)) { + // We cannot check content in data at this time to avoid toast message. + return description.hasMimeType(ClipDescription.MIMETYPE_TEXT_HTML) + || description.hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); + } + + return false; + } + + /** Deletes all text from the clipboard. */ + @WrapForJNI(calledFrom = "gecko") + public static void clearText(final Context context) { + if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.P) { + setText(context, null); + return; + } + // Although we don't know more details of https://crbug.com/1203377, Blink doesn't use + // clearPrimaryClip on Android P since this may throw an exception, even if it is supported + // on Android P. + final ClipboardManager cm = + (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE); + cm.clearPrimaryClip(); + } +} |