1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package android.support.text.emoji.widget; 17 18 import static android.support.annotation.RestrictTo.Scope.LIBRARY_GROUP; 19 20 import android.graphics.Rect; 21 import android.support.annotation.NonNull; 22 import android.support.annotation.Nullable; 23 import android.support.annotation.RequiresApi; 24 import android.support.annotation.RestrictTo; 25 import android.support.text.emoji.EmojiCompat; 26 import android.text.method.TransformationMethod; 27 import android.view.View; 28 29 /** 30 * TransformationMethod wrapper in order to update transformed text with emojis. 31 * 32 * @hide 33 */ 34 @RestrictTo(LIBRARY_GROUP) 35 @RequiresApi(19) 36 class EmojiTransformationMethod implements TransformationMethod { 37 private final TransformationMethod mTransformationMethod; 38 39 EmojiTransformationMethod(TransformationMethod transformationMethod) { 40 mTransformationMethod = transformationMethod; 41 } 42 43 @Override 44 public CharSequence getTransformation(@Nullable CharSequence source, @NonNull final View view) { 45 if (view.isInEditMode()) { 46 return source; 47 } 48 49 if (mTransformationMethod != null) { 50 source = mTransformationMethod.getTransformation(source, view); 51 } 52 53 if (source != null) { 54 switch (EmojiCompat.get().getLoadState()){ 55 case EmojiCompat.LOAD_STATE_SUCCEEDED: 56 return EmojiCompat.get().process(source); 57 } 58 } 59 return source; 60 } 61 62 @Override 63 public void onFocusChanged(final View view, final CharSequence sourceText, 64 final boolean focused, final int direction, final Rect previouslyFocusedRect) { 65 if (mTransformationMethod != null) { 66 mTransformationMethod.onFocusChanged(view, sourceText, focused, direction, 67 previouslyFocusedRect); 68 } 69 } 70 } 71
