content: /*
   * Copyright (C) 2014 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 com.amnesica.kryptey.inputmethod.compat;
  
  import android.annotation.TargetApi;
  import android.graphics.Outline;
  import android.inputmethodservice.InputMethodService;
  import android.os.Build;
  import android.view.View;
  import android.view.ViewOutlineProvider;
  
  import com.amnesica.kryptey.inputmethod.compat.ViewOutlineProviderCompatUtils.InsetsUpdater;
  
  @TargetApi(Build.VERSION_CODES.LOLLIPOP)
  class ViewOutlineProviderCompatUtilsLXX {
    private ViewOutlineProviderCompatUtilsLXX() {
      // This utility class is not publicly instantiable.
    }
  
    static InsetsUpdater setInsetsOutlineProvider(final View view) {
      final InsetsOutlineProvider provider = new InsetsOutlineProvider(view);
      view.setOutlineProvider(provider);
      return provider;
    }
  
    private static class InsetsOutlineProvider extends ViewOutlineProvider
        implements InsetsUpdater {
      private final View mView;
      private static final int NO_DATA = -1;
      private int mLastVisibleTopInsets = NO_DATA;
  
      public InsetsOutlineProvider(final View view) {
        mView = view;
        view.setOutlineProvider(this);
      }
  
      @Override
      public void setInsets(final InputMethodService.Insets insets) {
        final int visibleTopInsets = insets.visibleTopInsets;
        if (mLastVisibleTopInsets != visibleTopInsets) {
          mLastVisibleTopInsets = visibleTopInsets;
          mView.invalidateOutline();
        }
      }
  
      @Override
      public void getOutline(final View view, final Outline outline) {
        if (mLastVisibleTopInsets == NO_DATA) {
          // Call default implementation.
          ViewOutlineProvider.BACKGROUND.getOutline(view, outline);
          return;
        }
        // TODO: Revisit this when floating/resize keyboard is supported.
        outline.setRect(
            view.getLeft(), mLastVisibleTopInsets, view.getRight(), view.getBottom());
      }
    }
  }
  