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package juloo.keyboard2;
import android.text.InputType;
import android.text.TextUtils;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
import android.view.KeyEvent;
final class Autocapitalisation
{
private boolean _enabled = false;
private boolean _beginning_of_sentence = false;
/** Keep track of the cursor to differentiate 'selection_updated' events
corresponding to typing from cursor movement. */
private int _cursor = 0;
public boolean should_enable_shift()
{
return _enabled && _beginning_of_sentence;
}
/** Returns [true] if shift should be on initially. The input connection
isn't stored. */
public void started(EditorInfo info, InputConnection ic)
{
if ((info.inputType & InputType.TYPE_TEXT_FLAG_CAP_SENTENCES) == 0)
{
_enabled = false;
return;
}
_enabled = true;
_beginning_of_sentence = ((info.initialCapsMode & TextUtils.CAP_MODE_SENTENCES) != 0);
_cursor = 0; // Just a guess
scan_text_before_cursor(10, ic);
}
public void typed(CharSequence c)
{
for (int i = 0; i < c.length(); i++)
typed(c.charAt(i));
}
public void typed(char c)
{
_cursor++;
if (is_beginning_of_sentence(c))
_beginning_of_sentence = true;
else if (!ignore_at_beginning_of_sentence(c))
_beginning_of_sentence = false;
}
public void selection_updated(int old_cursor, int new_cursor, InputConnection ic)
{
if (new_cursor == _cursor)
return;
// Text has been inserted
if (old_cursor == _cursor && new_cursor > old_cursor)
{
scan_text_before_cursor(Math.min(new_cursor - old_cursor, 10), ic);
}
else
{
// Cursor has moved or [_cursor] wasn't uptodate
_beginning_of_sentence = false;
scan_text_before_cursor(10, ic);
}
_cursor = new_cursor;
}
/** Updates [_cursor]. */
private void scan_text_before_cursor(int range, InputConnection ic)
{
if (!_enabled) // Don't query characters if disabled
return;
CharSequence text_before = ic.getTextBeforeCursor(range, 0);
if (text_before == null)
{
_beginning_of_sentence = false;
}
else
{
_beginning_of_sentence = true;
typed(text_before);
}
}
private boolean ignore_at_beginning_of_sentence(char c)
{
switch (c)
{
case ' ':
case '"':
case '\'':
case '(':
case '«':
return true;
default:
return false;
}
}
private boolean is_beginning_of_sentence(char c)
{
switch (c)
{
case '.':
case ';':
case '\n':
case '!':
case '?':
case '¿':
case '¡':
return true;
default:
return false;
}
}
}
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