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package juloo.keyboard2;
import android.os.Looper;
import android.view.KeyEvent;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
class KeyEventHandler implements Config.IKeyEventHandler
{
IReceiver _recv;
Autocapitalisation _autocap;
public int actionId; // Action performed by the Action key.
public KeyEventHandler(Looper looper, IReceiver recv)
{
_recv = recv;
_autocap = new Autocapitalisation(looper,
this.new Autocapitalisation_callback());
}
/** Editing just started. */
public void started(EditorInfo info)
{
_autocap.started(info, _recv.getCurrentInputConnection());
}
/** Selection has been updated. */
public void selection_updated(int oldSelStart, int newSelStart)
{
_autocap.selection_updated(oldSelStart, newSelStart);
}
/** A key has been released. */
public void key_up(KeyValue key, Pointers.Modifiers mods)
{
if (key == null)
return;
switch (key.getKind())
{
case Char: send_text(String.valueOf(key.getChar())); break;
case String: send_text(key.getString()); break;
case Event:
switch (key.getEvent())
{
case CONFIG: _recv.showKeyboardConfig(); break;
case SWITCH_TEXT: _recv.set_layout(Layout.Current); break;
case SWITCH_NUMERIC: _recv.set_layout(Layout.Numeric); break;
case SWITCH_EMOJI: _recv.setPane_emoji(); break;
case SWITCH_BACK_EMOJI: _recv.setPane_normal(); break;
case CHANGE_METHOD: _recv.switchInputMethod(); break;
case CHANGE_METHOD_PREV: _recv.switchToPrevInputMethod(); break;
case ACTION:
InputConnection conn = _recv.getCurrentInputConnection();
if (conn != null)
conn.performEditorAction(actionId);
break;
case SWITCH_SECOND: _recv.set_layout(Layout.Secondary); break;
case SWITCH_SECOND_BACK: _recv.set_layout(Layout.Primary); break;
case SWITCH_GREEKMATH: _recv.set_layout(Layout.Greekmath); break;
case CAPS_LOCK: _recv.set_shift_state(true, true); break;
case SWITCH_VOICE_TYPING: _recv.switch_voice_typing(); break;
}
break;
case Keyevent:
handleKeyUpWithModifier(key.getKeyevent(), mods);
break;
case Modifier:
break;
case Editing:
send_context_menu_action(action_of_editing_key(key.getEditing()));
break;
}
}
static int action_of_editing_key(KeyValue.Editing e)
{
switch (e)
{
case COPY: return android.R.id.copy;
case PASTE: return android.R.id.paste;
case CUT: return android.R.id.cut;
case SELECT_ALL: return android.R.id.selectAll;
case SHARE: return android.R.id.shareText;
case PASTE_PLAIN: return android.R.id.pasteAsPlainText;
case UNDO: return android.R.id.undo;
case REDO: return android.R.id.redo;
case REPLACE: return android.R.id.replaceText;
case ASSIST: return android.R.id.textAssist;
case AUTOFILL: return android.R.id.autofill;
default: return -1; // sad
}
}
// private void handleDelKey(int before, int after)
// {
// CharSequence selection = getCurrentInputConnection().getSelectedText(0);
// if (selection != null && selection.length() > 0)
// getCurrentInputConnection().commitText("", 1);
// else
// getCurrentInputConnection().deleteSurroundingText(before, after);
// }
int sendMetaKey(int eventCode, int metaFlags, int metaState, boolean down)
{
int action;
int updatedMetaState;
if (down) { action = KeyEvent.ACTION_DOWN; updatedMetaState = metaState | metaFlags; }
else { action = KeyEvent.ACTION_UP; updatedMetaState = metaState & ~metaFlags; }
send_keyevent(action, eventCode, metaState);
return updatedMetaState;
}
int sendMetaKeyForModifier(KeyValue.Modifier mod, int metaState, boolean down)
{
switch (mod)
{
case CTRL:
return sendMetaKey(KeyEvent.KEYCODE_CTRL_LEFT, KeyEvent.META_CTRL_LEFT_ON | KeyEvent.META_CTRL_ON, metaState, down);
case ALT:
return sendMetaKey(KeyEvent.KEYCODE_ALT_LEFT, KeyEvent.META_ALT_LEFT_ON | KeyEvent.META_ALT_ON, metaState, down);
case SHIFT:
return sendMetaKey(KeyEvent.KEYCODE_SHIFT_LEFT, KeyEvent.META_SHIFT_LEFT_ON | KeyEvent.META_SHIFT_ON, metaState, down);
case META:
return sendMetaKey(KeyEvent.KEYCODE_META_LEFT, KeyEvent.META_META_LEFT_ON | KeyEvent.META_META_ON, metaState, down);
default: return metaState;
}
}
/*
* Don't set KeyEvent.FLAG_SOFT_KEYBOARD.
*/
void handleKeyUpWithModifier(int keyCode, Pointers.Modifiers mods)
{
int metaState = 0;
for (int i = 0; i < mods.size(); i++)
metaState = sendMetaKeyForModifier(mods.get(i), metaState, true);
send_keyevent(KeyEvent.ACTION_DOWN, keyCode, metaState);
send_keyevent(KeyEvent.ACTION_UP, keyCode, metaState);
for (int i = mods.size() - 1; i >= 0; i--)
metaState = sendMetaKeyForModifier(mods.get(i), metaState, false);
}
void send_keyevent(int eventAction, int eventCode, int meta)
{
InputConnection conn = _recv.getCurrentInputConnection();
if (conn == null)
return;
conn.sendKeyEvent(new KeyEvent(1, 1, eventAction, eventCode, 0, meta));
if (eventAction == KeyEvent.ACTION_UP)
_autocap.event_sent(eventCode, meta);
}
void send_text(CharSequence text)
{
InputConnection conn = _recv.getCurrentInputConnection();
if (conn == null)
return;
conn.commitText(text, 1);
_autocap.typed(text);
}
/** See {!InputConnection.performContextMenuAction}. */
void send_context_menu_action(int id)
{
InputConnection conn = _recv.getCurrentInputConnection();
if (conn == null)
return;
conn.performContextMenuAction(id);
}
public enum Layout
{
Current, // The primary or secondary layout
Primary,
Secondary,
Numeric,
Greekmath
}
public static interface IReceiver
{
public void switchInputMethod();
public void switchToPrevInputMethod();
public void switch_voice_typing();
public void setPane_emoji();
public void setPane_normal();
public void showKeyboardConfig();
public void set_layout(Layout l);
public void set_shift_state(boolean state, boolean lock);
public InputConnection getCurrentInputConnection();
}
class Autocapitalisation_callback implements Autocapitalisation.Callback
{
@Override
public void update_shift_state(boolean should_enable, boolean should_disable)
{
if (should_enable)
_recv.set_shift_state(true, false);
else if (should_disable)
_recv.set_shift_state(false, false);
}
}
}
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