// TextWatcher
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (hasCompositionString() && mCompositionStart != start) {
// Changed range is different from the composition, need to reset the composition
endComposition();
}
CharSequence changedText = s.subSequence(start, start + count);
if (changedText.length() == 1) {
char changedChar = changedText.charAt(0);
// Some IMEs (e.g. SwiftKey X) send a string with '\n' when Enter is pressed
// Such string cannot be handled by Gecko, so we convert it to a key press instead
if (changedChar == '\n') {
processKeyDown(
KeyEvent.KEYCODE_ENTER,
new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER),
false);
processKeyUp(
KeyEvent.KEYCODE_ENTER,
new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER),
false);
return;
}
// If we are committing a single character and didn't have an active composition string,
// we can send Gecko keydown/keyup events instead of composition events.
if (mCommittingText && !hasCompositionString() && synthesizeKeyEvents(changedChar)) {
// Block this thread until all pending events are processed
GeckoAppShell.geckoEventSync();
return;
}
}
if (!hasCompositionString()) {
if (DEBUG) Log.d(LOGTAG, ". . . onTextChanged: IME_COMPOSITION_BEGIN");
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMEEvent(GeckoEvent.IME_COMPOSITION_BEGIN, 0, 0));
mCompositionStart = start;
if (DEBUG) {
Log.d(LOGTAG, ". . . onTextChanged: IME_SET_SELECTION, start=" + start + ", len=" + before);
}
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMEEvent(GeckoEvent.IME_SET_SELECTION, start, before));
}
sendTextToGecko(changedText, start + count);
if (DEBUG) {
Log.d(LOGTAG, ". . . onTextChanged: IME_SET_SELECTION, start=" + (start + count) + ", 0");
}
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMEEvent(GeckoEvent.IME_SET_SELECTION, start + count, 0));
// End composition if all characters in the word have been deleted.
// This fixes autocomplete results not appearing.
if (count == 0) endComposition();
// Block this thread until all pending events are processed
GeckoAppShell.geckoEventSync();
}
