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 androidx.test.espresso.contrib;
  
  import android.view.View;
  import androidx.core.view.GravityCompat;
  import androidx.drawerlayout.widget.DrawerLayout;
  import androidx.test.espresso.matcher.BoundedMatcher;
  import org.hamcrest.Description;
  import org.hamcrest.Matcher;
  
  /** Hamcrest matchers for a {@link DrawerLayout}. */
  public final class DrawerMatchers {
  
    private DrawerMatchers() {
      // forbid instantiation
    }
  
    /**
     * Returns a matcher that verifies that the drawer with the specified gravity is open. Matches
     * only when the drawer is fully open. Use {@link #isClosed(int)} instead of {@code not(isOpen())}
     * when you wish to check that the drawer is fully closed.
     */
    public static Matcher<View> isOpen(final int gravity) {
      return new BoundedMatcher<View, DrawerLayout>(DrawerLayout.class) {
        @Override
        public void describeTo(Description description) {
          description.appendText("is drawer open");
        }
  
        @Override
        public boolean matchesSafely(DrawerLayout drawer) {
          return drawer.isDrawerOpen(gravity);
        }
      };
    }
  
    /**
     * Returns a matcher that verifies that the drawer (with gravity START) is open. Matches only when
     * the drawer is fully open. Use {@link #isClosed()} instead of {@code not(isOpen())} when you
     * wish to check that the drawer is fully closed.
     */
    public static Matcher<View> isOpen() {
      return isOpen(GravityCompat.START);
    }
  
    /**
     * Returns a matcher that verifies that the drawer with the specified gravity is closed. Matches
     * only when the drawer is fully closed. Use {@link #isOpen(int)} instead of {@code
     * not(isClosed()))} when you wish to check that the drawer is fully open.
     */
    public static Matcher<View> isClosed(final int gravity) {
      return new BoundedMatcher<View, DrawerLayout>(DrawerLayout.class) {
        @Override
        public void describeTo(Description description) {
          description.appendText("is drawer closed");
        }
  
        @Override
        public boolean matchesSafely(DrawerLayout drawer) {
          return !drawer.isDrawerVisible(gravity);
        }
      };
    }
  
    /**
     * Returns a matcher that verifies that the drawer (with gravity START) is closed. Matches only
     * when the drawer is fully closed. Use {@link #isOpen()} instead of {@code not(isClosed()))} when
     * you wish to check that the drawer is fully open.
     */
    public static Matcher<View> isClosed() {
      return isClosed(GravityCompat.START);
    }
  }
  