content: /*
   * Copyright (C) 2017 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.android.setupwizardlib.template;
  
  import android.content.res.TypedArray;
  import androidx.annotation.AttrRes;
  import androidx.annotation.NonNull;
  import androidx.annotation.Nullable;
  import android.util.AttributeSet;
  import android.widget.TextView;
  import com.android.setupwizardlib.R;
  import com.android.setupwizardlib.TemplateLayout;
  
  /** A {@link Mixin} for setting and getting the header text. */
  public class HeaderMixin implements Mixin {
  
    private final TemplateLayout templateLayout;
  
    /**
     * @param layout The layout this Mixin belongs to.
     * @param attrs XML attributes given to the layout.
     * @param defStyleAttr The default style attribute as given to the constructor of the layout.
     */
    public HeaderMixin(
        @NonNull TemplateLayout layout, @Nullable AttributeSet attrs, @AttrRes int defStyleAttr) {
      templateLayout = layout;
  
      final TypedArray a =
          layout
              .getContext()
              .obtainStyledAttributes(attrs, R.styleable.SuwHeaderMixin, defStyleAttr, 0);
  
      // Set the header text
      final CharSequence headerText = a.getText(R.styleable.SuwHeaderMixin_suwHeaderText);
      if (headerText != null) {
        setText(headerText);
      }
  
      a.recycle();
    }
  
    /** @return The TextView displaying the header. */
    public TextView getTextView() {
      return (TextView) templateLayout.findManagedViewById(R.id.suw_layout_title);
    }
  
    /**
     * Sets the header text. This can also be set via the XML attribute {@code app:suwHeaderText}.
     *
     * @param title The resource ID of the text to be set as header.
     */
    public void setText(int title) {
      final TextView titleView = getTextView();
      if (titleView != null) {
        titleView.setText(title);
      }
    }
  
    /**
     * Sets the header text. This can also be set via the XML attribute {@code app:suwHeaderText}.
     *
     * @param title The text to be set as header.
     */
    public void setText(CharSequence title) {
      final TextView titleView = getTextView();
      if (titleView != null) {
        titleView.setText(title);
      }
    }
  
    /** @return The current header text. */
    public CharSequence getText() {
      final TextView titleView = getTextView();
      return titleView != null ? titleView.getText() : null;
    }
  }
  