/talkback_preics/src/com/google/android/marvin/talkback/Filter.java

http://eyes-free.googlecode.com/ · Java · 40 lines · 6 code · 4 blank · 30 comment · 0 complexity · 2c445b7431a74ce5d0039caf0aed431e MD5 · raw file

  1. /*
  2. * Copyright (C) 2009 The Android Open Source Project
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. package com.google.android.marvin.talkback;
  17. import android.content.Context;
  18. import android.view.accessibility.AccessibilityEvent;
  19. /**
  20. * This interface defines the contract for writing filters. A filter either
  21. * accepts or rejects an {@link AccessibilityEvent}.
  22. *
  23. * @author svetoslavganov@google.com (Svetoslav Ganov)
  24. */
  25. public interface Filter {
  26. /**
  27. * Check if the filter accepts a given <code>event</code>.
  28. *
  29. * @param event The event.
  30. * @param context The context to be used for loading resources etc.
  31. * @param activity The class name of the current activity.
  32. * @param args Additional arguments for the filter.
  33. * @return True if the event is accepted, false otherwise.
  34. */
  35. boolean accept(AccessibilityEvent event, Context context, String activity, Object args);
  36. }