/**
* Sends the specified text to the {@link AccessibilityManager} to be spoken.
*
* @param view The source view.
* @param text The text to speak.
*/
public void announceForAccessibility(final View view, final CharSequence text) {
if (!mAccessibilityManager.isEnabled()) {
Log.e(TAG, "Attempted to speak when accessibility was disabled!");
return;
}
// The following is a hack to avoid using the heavy-weight TextToSpeech
// class. Instead, we're just forcing a fake AccessibilityEvent into
// the screen reader to make it speak.
final AccessibilityEvent event = AccessibilityEvent.obtain();
event.setPackageName(PACKAGE);
event.setClassName(CLASS);
event.setEventTime(SystemClock.uptimeMillis());
event.setEnabled(true);
event.getText().add(text);
// Platforms starting at SDK version 16 (Build.VERSION_CODES.JELLY_BEAN) should use
// announce events.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
event.setEventType(AccessibilityEventCompat.TYPE_ANNOUNCEMENT);
} else {
event.setEventType(AccessibilityEvent.TYPE_VIEW_FOCUSED);
}
final ViewParent viewParent = view.getParent();
if ((viewParent == null) || !(viewParent instanceof ViewGroup)) {
Log.e(TAG, "Failed to obtain ViewParent in announceForAccessibility");
return;
}
viewParent.requestSendAccessibilityEvent(view, event);
}
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
event.setClassName(getClass().getName());
event.setPackageName(mContext.getPackageName());
LayoutParams params = getWindow().getAttributes();
boolean isFullScreen =
(params.width == LayoutParams.MATCH_PARENT) && (params.height == LayoutParams.MATCH_PARENT);
event.setFullScreen(isFullScreen);
return false;
}
private static void sendDirectAccessibilityEvent(int eventType, JSONObject message) {
final AccessibilityEvent accEvent = AccessibilityEvent.obtain(eventType);
accEvent.setClassName(GeckoAccessibility.class.getName());
accEvent.setPackageName(GeckoAppShell.getContext().getPackageName());
populateEventFromJSON(accEvent, message);
AccessibilityManager accessibilityManager =
(AccessibilityManager)
GeckoAppShell.getContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
try {
accessibilityManager.sendAccessibilityEvent(accEvent);
} catch (IllegalStateException e) {
// Accessibility is off.
}
}
@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
if (Build.VERSION.SDK_INT >= 14) {
if (event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED) {
// Action mode started
event.setSource(this);
event.setClassName(getClass().getName());
event.setPackageName(getContext().getPackageName());
event.setContentDescription(mTitle);
} else {
super.onInitializeAccessibilityEvent(event);
}
}
}
private void trySendAccessibilityEvent() {
AccessibilityManager accessibilityManager =
AccessibilityManager.getInstance(mView.getContext());
if (!accessibilityManager.isEnabled()) {
return;
}
// treat toasts as notifications since they are used to
// announce a transient piece of information to the user
AccessibilityEvent event =
AccessibilityEvent.obtain(AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
event.setClassName(getClass().getName());
event.setPackageName(mView.getContext().getPackageName());
mView.dispatchPopulateAccessibilityEvent(event);
accessibilityManager.sendAccessibilityEvent(event);
}
private AccessibilityEvent createEventForChild(int i, int j) {
AccessibilityEvent accessibilityevent = AccessibilityEvent.obtain(j);
accessibilityevent.setEnabled(true);
accessibilityevent.setClassName(DEFAULT_CLASS_NAME);
onPopulateEventForVirtualView(i, accessibilityevent);
if (accessibilityevent.getText().isEmpty()
&& accessibilityevent.getContentDescription() == null) {
throw new RuntimeException(
"Callbacks must add text or a content description in populateEventForVirtualViewId()");
} else {
accessibilityevent.setPackageName(mView.getContext().getPackageName());
AccessibilityEventCompat.asRecord(accessibilityevent).setSource(mView, i);
return accessibilityevent;
}
}
private void sendAccessibilityEvent(Notification notification, CharSequence packageName) {
AccessibilityManager manager = AccessibilityManager.getInstance(mContext);
if (!manager.isEnabled()) {
return;
}
AccessibilityEvent event =
AccessibilityEvent.obtain(AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
event.setPackageName(packageName);
event.setClassName(Notification.class.getName());
event.setParcelableData(notification);
CharSequence tickerText = notification.tickerText;
if (!TextUtils.isEmpty(tickerText)) {
event.getText().add(tickerText);
}
manager.sendAccessibilityEvent(event);
}
public static void a(Snackbar paramSnackbar)
{
String str = b.getText().toString().trim();
if (!TextUtils.isEmpty(str))
{
Context localContext = paramSnackbar.getContext();
AccessibilityManager localAccessibilityManager = (AccessibilityManager)localContext.getSystemService("accessibility");
if (localAccessibilityManager.isEnabled())
{
AccessibilityEvent localAccessibilityEvent = AccessibilityEvent.obtain(32);
localAccessibilityEvent.setClassName(Snackbar.class.getName());
localAccessibilityEvent.setPackageName(localContext.getPackageName());
localAccessibilityEvent.getText().add(str);
localAccessibilityEvent.setEnabled(true);
paramSnackbar = c.getText().toString().trim();
if (!TextUtils.isEmpty(paramSnackbar)) {
localAccessibilityEvent.getText().add(paramSnackbar);
}
localAccessibilityManager.sendAccessibilityEvent(localAccessibilityEvent);
}
}
}
private AccessibilityEvent getEventForItem(T item, int eventType) {
final AccessibilityEvent event = AccessibilityEvent.obtain(eventType);
final AccessibilityRecordCompat record = new AccessibilityRecordCompat(event);
final int virtualDescendantId = getIdForItem(item);
// Ensure the client has good defaults.
event.setEnabled(true);
// Allow the client to populate the event.
populateEventForItem(item, event);
if (event.getText().isEmpty() && TextUtils.isEmpty(event.getContentDescription())) {
throw new RuntimeException(
"You must add text or a content description in populateEventForItem()");
}
// Don't allow the client to override these properties.
event.setClassName(item.getClass().getName());
event.setPackageName(mParentView.getContext().getPackageName());
record.setSource(mParentView, virtualDescendantId);
return event;
}
