| /* |
| * Copyright (C) 2011 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 android.text.method; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.graphics.Rect; |
| import android.text.Spanned; |
| import android.text.TextUtils; |
| import android.util.Log; |
| import android.view.View; |
| import android.widget.TextView; |
| |
| import java.util.Locale; |
| |
| /** |
| * Transforms source text into an ALL CAPS string, locale-aware. |
| * |
| * @hide |
| */ |
| public class AllCapsTransformationMethod implements TransformationMethod2 { |
| private static final String TAG = "AllCapsTransformationMethod"; |
| |
| private boolean mEnabled; |
| private Locale mLocale; |
| |
| public AllCapsTransformationMethod(@NonNull Context context) { |
| mLocale = context.getResources().getConfiguration().getLocales().get(0); |
| } |
| |
| @Override |
| public CharSequence getTransformation(@Nullable CharSequence source, View view) { |
| if (!mEnabled) { |
| Log.w(TAG, "Caller did not enable length changes; not transforming text"); |
| return source; |
| } |
| |
| if (source == null) { |
| return null; |
| } |
| |
| Locale locale = null; |
| if (view instanceof TextView) { |
| locale = ((TextView)view).getTextLocale(); |
| } |
| if (locale == null) { |
| locale = mLocale; |
| } |
| final boolean copySpans = source instanceof Spanned; |
| return TextUtils.toUpperCase(locale, source, copySpans); |
| } |
| |
| @Override |
| public void onFocusChanged(View view, CharSequence sourceText, boolean focused, int direction, |
| Rect previouslyFocusedRect) { |
| } |
| |
| @Override |
| public void setLengthChangesAllowed(boolean allowLengthChanges) { |
| mEnabled = allowLengthChanges; |
| } |
| |
| } |