diff options
Diffstat (limited to 'android/view/accessibility/AccessibilityEvent.java')
| -rw-r--r-- | android/view/accessibility/AccessibilityEvent.java | 64 |
1 files changed, 53 insertions, 11 deletions
diff --git a/android/view/accessibility/AccessibilityEvent.java b/android/view/accessibility/AccessibilityEvent.java index e0f74a7d..7946e9e2 100644 --- a/android/view/accessibility/AccessibilityEvent.java +++ b/android/view/accessibility/AccessibilityEvent.java @@ -201,6 +201,7 @@ import java.util.List; * <em>Properties:</em></br> * <ul> * <li>{@link #getEventType()} - The type of the event.</li> + * <li>{@link #getContentChangeTypes()} - The type of state changes.</li> * <li>{@link #getSource()} - The source info (for registered clients).</li> * <li>{@link #getClassName()} - The class name of the source.</li> * <li>{@link #getPackageName()} - The package name of the source.</li> @@ -388,6 +389,8 @@ import java.util.List; */ public final class AccessibilityEvent extends AccessibilityRecord implements Parcelable { private static final boolean DEBUG = false; + /** @hide */ + public static final boolean DEBUG_ORIGIN = false; /** * Invalid selection/focus position. @@ -748,7 +751,7 @@ public final class AccessibilityEvent extends AccessibilityRecord implements Par private static final int MAX_POOL_SIZE = 10; private static final SynchronizedPool<AccessibilityEvent> sPool = - new SynchronizedPool<AccessibilityEvent>(MAX_POOL_SIZE); + new SynchronizedPool<>(MAX_POOL_SIZE); private @EventType int mEventType; private CharSequence mPackageName; @@ -758,6 +761,17 @@ public final class AccessibilityEvent extends AccessibilityRecord implements Par int mContentChangeTypes; int mWindowChangeTypes; + /** + * The stack trace describing where this event originated from on the app side. + * Only populated if {@link #DEBUG_ORIGIN} is enabled + * Can be inspected(e.g. printed) from an + * {@link android.accessibilityservice.AccessibilityService} to trace where particular events + * are being dispatched from. + * + * @hide + */ + public StackTraceElement[] originStackTrace = null; + private ArrayList<AccessibilityRecord> mRecords; /* @@ -780,6 +794,7 @@ public final class AccessibilityEvent extends AccessibilityRecord implements Par mWindowChangeTypes = event.mWindowChangeTypes; mEventTime = event.mEventTime; mPackageName = event.mPackageName; + if (DEBUG_ORIGIN) originStackTrace = event.originStackTrace; } /** @@ -849,16 +864,17 @@ public final class AccessibilityEvent extends AccessibilityRecord implements Par } /** - * Gets the bit mask of change types signaled by an - * {@link #TYPE_WINDOW_CONTENT_CHANGED} event. A single event may represent - * multiple change types. + * Gets the bit mask of change types signaled by a + * {@link #TYPE_WINDOW_CONTENT_CHANGED} event or {@link #TYPE_WINDOW_STATE_CHANGED}. A single + * event may represent multiple change types. * * @return The bit mask of change types. One or more of: * <ul> - * <li>{@link AccessibilityEvent#CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION} - * <li>{@link AccessibilityEvent#CONTENT_CHANGE_TYPE_SUBTREE} - * <li>{@link AccessibilityEvent#CONTENT_CHANGE_TYPE_TEXT} - * <li>{@link AccessibilityEvent#CONTENT_CHANGE_TYPE_UNDEFINED} + * <li>{@link #CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION} + * <li>{@link #CONTENT_CHANGE_TYPE_SUBTREE} + * <li>{@link #CONTENT_CHANGE_TYPE_TEXT} + * <li>{@link #CONTENT_CHANGE_TYPE_PANE_TITLE} + * <li>{@link #CONTENT_CHANGE_TYPE_UNDEFINED} * </ul> */ @ContentChangeTypes @@ -877,6 +893,7 @@ public final class AccessibilityEvent extends AccessibilityRecord implements Par } case CONTENT_CHANGE_TYPE_SUBTREE: return "CONTENT_CHANGE_TYPE_SUBTREE"; case CONTENT_CHANGE_TYPE_TEXT: return "CONTENT_CHANGE_TYPE_TEXT"; + case CONTENT_CHANGE_TYPE_PANE_TITLE: return "CONTENT_CHANGE_TYPE_PANE_TITLE"; case CONTENT_CHANGE_TYPE_UNDEFINED: return "CONTENT_CHANGE_TYPE_UNDEFINED"; default: return Integer.toHexString(type); } @@ -1104,7 +1121,9 @@ public final class AccessibilityEvent extends AccessibilityRecord implements Par */ public static AccessibilityEvent obtain() { AccessibilityEvent event = sPool.acquire(); - return (event != null) ? event : new AccessibilityEvent(); + if (event == null) event = new AccessibilityEvent(); + if (DEBUG_ORIGIN) event.originStackTrace = Thread.currentThread().getStackTrace(); + return event; } /** @@ -1142,6 +1161,7 @@ public final class AccessibilityEvent extends AccessibilityRecord implements Par record.recycle(); } } + if (DEBUG_ORIGIN) originStackTrace = null; } /** @@ -1164,7 +1184,7 @@ public final class AccessibilityEvent extends AccessibilityRecord implements Par // Read the records. final int recordCount = parcel.readInt(); if (recordCount > 0) { - mRecords = new ArrayList<AccessibilityRecord>(recordCount); + mRecords = new ArrayList<>(recordCount); for (int i = 0; i < recordCount; i++) { AccessibilityRecord record = AccessibilityRecord.obtain(); readAccessibilityRecordFromParcel(record, parcel); @@ -1172,6 +1192,17 @@ public final class AccessibilityEvent extends AccessibilityRecord implements Par mRecords.add(record); } } + + if (DEBUG_ORIGIN) { + originStackTrace = new StackTraceElement[parcel.readInt()]; + for (int i = 0; i < originStackTrace.length; i++) { + originStackTrace[i] = new StackTraceElement( + parcel.readString(), + parcel.readString(), + parcel.readString(), + parcel.readInt()); + } + } } /** @@ -1227,6 +1258,17 @@ public final class AccessibilityEvent extends AccessibilityRecord implements Par AccessibilityRecord record = mRecords.get(i); writeAccessibilityRecordToParcel(record, parcel, flags); } + + if (DEBUG_ORIGIN) { + if (originStackTrace == null) originStackTrace = Thread.currentThread().getStackTrace(); + parcel.writeInt(originStackTrace.length); + for (StackTraceElement element : originStackTrace) { + parcel.writeString(element.getClassName()); + parcel.writeString(element.getMethodName()); + parcel.writeString(element.getFileName()); + parcel.writeInt(element.getLineNumber()); + } + } } /** @@ -1285,7 +1327,7 @@ public final class AccessibilityEvent extends AccessibilityRecord implements Par } if (!DEBUG_CONCISE_TOSTRING || mWindowChangeTypes != 0) { builder.append("; WindowChangeTypes: ").append( - contentChangeTypesToString(mWindowChangeTypes)); + windowChangeTypesToString(mWindowChangeTypes)); } super.appendTo(builder); if (DEBUG || DEBUG_CONCISE_TOSTRING) { |