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.view.View;
  import com.android.setupwizardlib.R;
  import com.android.setupwizardlib.TemplateLayout;
  import com.android.setupwizardlib.view.NavigationBar;
  import com.android.setupwizardlib.view.NavigationBar.NavigationBarListener;
  
  /** A {@link Mixin} for interacting with a {@link NavigationBar}. */
  public class NavigationBarMixin implements Mixin {
  
    private final TemplateLayout templateLayout;
  
    /** @param layout The layout this mixin belongs to. */
    public NavigationBarMixin(TemplateLayout layout) {
      templateLayout = layout;
    }
  
    /**
     * @return The navigation bar instance in the layout, or null if the layout does not have a
     *     navigation bar.
     */
    public NavigationBar getNavigationBar() {
      final View view = templateLayout.findManagedViewById(R.id.suw_layout_navigation_bar);
      return view instanceof NavigationBar ? (NavigationBar) view : null;
    }
  
    /**
     * Sets the label of the next button.
     *
     * @param text Label of the next button.
     */
    public void setNextButtonText(int text) {
      getNavigationBar().getNextButton().setText(text);
    }
  
    /**
     * Sets the label of the next button.
     *
     * @param text Label of the next button.
     */
    public void setNextButtonText(CharSequence text) {
      getNavigationBar().getNextButton().setText(text);
    }
  
    /** @return The current label of the next button. */
    public CharSequence getNextButtonText() {
      return getNavigationBar().getNextButton().getText();
    }
  
    /**
     * Sets the listener to handle back and next button clicks in the navigation bar.
     *
     * @see NavigationBar#setNavigationBarListener(NavigationBarListener)
     * @see NavigationBarListener
     */
    public void setNavigationBarListener(NavigationBarListener listener) {
      getNavigationBar().setNavigationBarListener(listener);
    }
  }
  