public static void sendAccessibilityEvent(final JSONObject message) {
if (!sEnabled) return;
final int eventType = message.optInt("eventType", -1);
if (eventType < 0) {
Log.e(LOGTAG, "No accessibility event type provided");
return;
}
if (Versions.preJB) {
// Before Jelly Bean we send events directly from here while spoofing the source by setting
// the package and class name manually.
ThreadUtils.postToBackgroundThread(
new Runnable() {
@Override
public void run() {
sendDirectAccessibilityEvent(eventType, message);
}
});
} else {
// In Jelly Bean we populate an AccessibilityNodeInfo with the minimal amount of data to have
// it work with TalkBack.
final LayerView view = GeckoAppShell.getLayerView();
if (view == null) return;
if (sVirtualCursorNode == null)
sVirtualCursorNode = AccessibilityNodeInfo.obtain(view, VIRTUAL_CURSOR_POSITION);
sVirtualCursorNode.setEnabled(message.optBoolean("enabled", true));
sVirtualCursorNode.setClickable(message.optBoolean("clickable"));
sVirtualCursorNode.setCheckable(message.optBoolean("checkable"));
sVirtualCursorNode.setChecked(message.optBoolean("checked"));
sVirtualCursorNode.setPassword(message.optBoolean("password"));
final JSONArray textArray = message.optJSONArray("text");
StringBuilder sb = new StringBuilder();
if (textArray != null && textArray.length() > 0) {
sb.append(textArray.optString(0));
for (int i = 1; i < textArray.length(); i++) {
sb.append(" ").append(textArray.optString(i));
}
}
sVirtualCursorNode.setText(sb.toString());
sVirtualCursorNode.setContentDescription(message.optString("description"));
JSONObject bounds = message.optJSONObject("bounds");
if (bounds != null) {
Rect relativeBounds =
new Rect(
bounds.optInt("left"), bounds.optInt("top"),
bounds.optInt("right"), bounds.optInt("bottom"));
sVirtualCursorNode.setBoundsInParent(relativeBounds);
int[] locationOnScreen = new int[2];
view.getLocationOnScreen(locationOnScreen);
Rect screenBounds = new Rect(relativeBounds);
screenBounds.offset(locationOnScreen[0], locationOnScreen[1]);
sVirtualCursorNode.setBoundsInScreen(screenBounds);
}
final JSONObject braille = message.optJSONObject("brailleOutput");
if (braille != null) {
sendBrailleText(
view,
braille.optString("text"),
braille.optInt("selectionStart"),
braille.optInt("selectionEnd"));
}
ThreadUtils.postToUiThread(
new Runnable() {
@Override
public void run() {
// If this is an accessibility focus, a lot of internal voodoo happens so we perform
// an
// accessibility focus action on the view, and it in turn sends the right events.
switch (eventType) {
case AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED:
sEventMessage = message;
view.performAccessibilityAction(
AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS, null);
break;
case AccessibilityEvent.TYPE_ANNOUNCEMENT:
case AccessibilityEvent.TYPE_VIEW_SCROLLED:
sEventMessage = null;
final AccessibilityEvent accEvent = AccessibilityEvent.obtain(eventType);
view.onInitializeAccessibilityEvent(accEvent);
populateEventFromJSON(accEvent, message);
view.getParent().requestSendAccessibilityEvent(view, accEvent);
break;
default:
sEventMessage = message;
view.sendAccessibilityEvent(eventType);
break;
}
}
});
}
}
