1 /* 2 * Copyright (C) 2014 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 17 package com.android.inputmethod.compat; 18 19 import android.annotation.TargetApi; 20 import android.graphics.Outline; 21 import android.inputmethodservice.InputMethodService; 22 import android.os.Build; 23 import android.view.View; 24 import android.view.ViewOutlineProvider; 25 26 import com.android.inputmethod.compat.ViewOutlineProviderCompatUtils.InsetsUpdater; 27 28 @TargetApi(Build.VERSION_CODES.LOLLIPOP) 29 class ViewOutlineProviderCompatUtilsLXX { ViewOutlineProviderCompatUtilsLXX()30 private ViewOutlineProviderCompatUtilsLXX() { 31 // This utility class is not publicly instantiable. 32 } 33 setInsetsOutlineProvider(final View view)34 static InsetsUpdater setInsetsOutlineProvider(final View view) { 35 final InsetsOutlineProvider provider = new InsetsOutlineProvider(view); 36 view.setOutlineProvider(provider); 37 return provider; 38 } 39 40 private static class InsetsOutlineProvider extends ViewOutlineProvider 41 implements InsetsUpdater { 42 private final View mView; 43 private static final int NO_DATA = -1; 44 private int mLastVisibleTopInsets = NO_DATA; 45 InsetsOutlineProvider(final View view)46 public InsetsOutlineProvider(final View view) { 47 mView = view; 48 view.setOutlineProvider(this); 49 } 50 51 @Override setInsets(final InputMethodService.Insets insets)52 public void setInsets(final InputMethodService.Insets insets) { 53 final int visibleTopInsets = insets.visibleTopInsets; 54 if (mLastVisibleTopInsets != visibleTopInsets) { 55 mLastVisibleTopInsets = visibleTopInsets; 56 mView.invalidateOutline(); 57 } 58 } 59 60 @Override getOutline(final View view, final Outline outline)61 public void getOutline(final View view, final Outline outline) { 62 if (mLastVisibleTopInsets == NO_DATA) { 63 // Call default implementation. 64 ViewOutlineProvider.BACKGROUND.getOutline(view, outline); 65 return; 66 } 67 // TODO: Revisit this when floating/resize keyboard is supported. 68 outline.setRect( 69 view.getLeft(), mLastVisibleTopInsets, view.getRight(), view.getBottom()); 70 } 71 } 72 } 73