content: /*
   * Copyright (C) 2015-2023 Emanuel Moecklin
   *
   * 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.onegravity.rteditor.toolbar;
  
  import android.content.Context;
  import android.content.res.TypedArray;
  import android.util.AttributeSet;
  
  import com.onegravity.rteditor.R;
  
  /**
   * An ImageButton for the toolbar.
   * It adds a checked state.
   */
  public class RTToolbarImageButton extends androidx.appcompat.widget.AppCompatImageButton {
      private static final int[] CHECKED_STATE_SET = {R.attr.state_checked};
  
      private boolean mChecked;
  
      public RTToolbarImageButton(Context context) {
          this(context, null);
      }
  
      public RTToolbarImageButton(Context context, AttributeSet attrs) {
          this(context, attrs, R.attr.rte_ToolbarButton);
      }
  
      public RTToolbarImageButton(Context context, AttributeSet attrs, int defStyle) {
          super(context, attrs, defStyle);
          TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ToolbarButton, defStyle, 0);
          mChecked = a.getBoolean(R.styleable.ToolbarButton_checked, false);
          a.recycle();
      }
  
      public boolean isChecked() {
          return mChecked;
      }
  
      public void setChecked(boolean checked) {
          if (mChecked != checked) {
              mChecked = checked;
              refreshDrawableState();
          }
      }
  
      @Override
      public int[] onCreateDrawableState(int extraSpace) {
          final int[] drawableState = super.onCreateDrawableState(extraSpace + CHECKED_STATE_SET.length);
          if (mChecked) mergeDrawableStates(drawableState, CHECKED_STATE_SET);
          return drawableState;
      }
  }