content: /*
   * Copyright (C) 2009 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 android.view.accessibility;
  
  /**
   * This interface is implemented by classes source of {@link AccessibilityEvent}s.
   *
   * <div class="special reference">
   * <h3>Developer Guides</h3>
   * <p>For more information about making applications accessible, read the
   * <a href="{@docRoot}guide/topics/ui/accessibility/index.html">Accessibility</a>
   * developer guide.</p>
   * </div>
   */
  public interface AccessibilityEventSource {
  
      /**
       * Handles the request for sending an {@link AccessibilityEvent} given
       * the event type. The method must first check if accessibility is on
       * via calling {@link AccessibilityManager#isEnabled() AccessibilityManager.isEnabled()},
       * obtain an {@link AccessibilityEvent} from the event pool through calling
       * {@link AccessibilityEvent#obtain(int) AccessibilityEvent.obtain(int)}, populate the
       * event, and send it for dispatch via calling
       * {@link AccessibilityManager#sendAccessibilityEvent(AccessibilityEvent)
       * AccessibilityManager.sendAccessibilityEvent(AccessibilityEvent)}.
       *
       * @see AccessibilityEvent
       * @see AccessibilityManager
       *
       * @param eventType The event type.
       */
      public void sendAccessibilityEvent(int eventType);
  
      /**
       * Handles the request for sending an {@link AccessibilityEvent}. The
       * method does not guarantee to check if accessibility is on before
       * sending the event for dispatch. It is responsibility of the caller
       * to do the check via calling {@link AccessibilityManager#isEnabled()
       * AccessibilityManager.isEnabled()}.
       *
       * @see AccessibilityEvent
       * @see AccessibilityManager
       *
       * @param event The event.
       */
      public void sendAccessibilityEventUnchecked(AccessibilityEvent event);
  }
  