forked from extern/Unexpected-Keyboard
aa78229b2a
Allow specifying a layout for programming and add a key for switching to it easily. The switching key is placed on the top edge of the space bar. The option has no effect by default because the ergonomic isn't ideal, it needs to be enabled explicitly. Users of Latin-script languages certainly prefer to use one layout (for programming or not). This feature might be removed in favor of a better language-switching mechanisms in the future.
105 lines
3.7 KiB
Java
105 lines
3.7 KiB
Java
package juloo.keyboard2;
|
|
|
|
import android.view.KeyEvent;
|
|
|
|
class KeyEventHandler implements Config.IKeyEventHandler
|
|
{
|
|
private IReceiver _recv;
|
|
|
|
public KeyEventHandler(IReceiver recv)
|
|
{
|
|
_recv = recv;
|
|
}
|
|
|
|
public void handleKeyUp(KeyValue key, int flags)
|
|
{
|
|
if (key == null || (key.flags & KeyValue.FLAG_NOCHAR) != 0)
|
|
return;
|
|
switch (key.eventCode)
|
|
{
|
|
case KeyValue.EVENT_CONFIG: _recv.showKeyboardConfig(); return;
|
|
case KeyValue.EVENT_SWITCH_TEXT: _recv.switchMain(); return;
|
|
case KeyValue.EVENT_SWITCH_NUMERIC: _recv.switchNumeric(); return;
|
|
case KeyValue.EVENT_SWITCH_EMOJI: _recv.setPane_emoji(); return;
|
|
case KeyValue.EVENT_SWITCH_BACK_EMOJI: _recv.setPane_normal(); return;
|
|
case KeyValue.EVENT_CHANGE_METHOD: _recv.switchToNextInputMethod(); return;
|
|
case KeyValue.EVENT_ACTION: _recv.performAction(); return;
|
|
case KeyValue.EVENT_SWITCH_PROGRAMMING: _recv.switchProgramming(); return;
|
|
default:
|
|
if ((flags & (KeyValue.FLAG_CTRL | KeyValue.FLAG_ALT | KeyValue.FLAG_META)) != 0)
|
|
handleKeyUpWithModifier(key, flags);
|
|
else if (key.char_ != KeyValue.CHAR_NONE)
|
|
_recv.commitChar(key.char_);
|
|
else if (key.eventCode != KeyValue.EVENT_NONE)
|
|
handleKeyUpWithModifier(key, flags);
|
|
else
|
|
_recv.commitText(key.symbol);
|
|
}
|
|
}
|
|
|
|
// 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);
|
|
// }
|
|
|
|
private 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; }
|
|
_recv.sendKeyEvent(action, eventCode, metaState);
|
|
return updatedMetaState;
|
|
}
|
|
|
|
/* Send key events corresponding to pressed modifier keys. */
|
|
private int sendMetaKeys(int flags, int metaState, boolean down)
|
|
{
|
|
if ((flags & KeyValue.FLAG_CTRL) != 0)
|
|
metaState = sendMetaKey(KeyEvent.KEYCODE_CTRL_LEFT, KeyEvent.META_CTRL_LEFT_ON | KeyEvent.META_CTRL_ON, metaState, down);
|
|
if ((flags & KeyValue.FLAG_ALT) != 0)
|
|
metaState = sendMetaKey(KeyEvent.KEYCODE_ALT_LEFT, KeyEvent.META_ALT_LEFT_ON | KeyEvent.META_ALT_ON, metaState, down);
|
|
if ((flags & KeyValue.FLAG_SHIFT) != 0)
|
|
metaState = sendMetaKey(KeyEvent.KEYCODE_SHIFT_LEFT, KeyEvent.META_SHIFT_LEFT_ON | KeyEvent.META_SHIFT_ON, metaState, down);
|
|
if ((flags & KeyValue.FLAG_META) != 0)
|
|
metaState = sendMetaKey(KeyEvent.KEYCODE_META_LEFT, KeyEvent.META_META_LEFT_ON | KeyEvent.META_META_ON, metaState, down);
|
|
return metaState;
|
|
}
|
|
|
|
/*
|
|
* Don't set KeyEvent.FLAG_SOFT_KEYBOARD.
|
|
*/
|
|
private void handleKeyUpWithModifier(KeyValue key, int flags)
|
|
{
|
|
if (key.eventCode == KeyValue.EVENT_NONE)
|
|
return ;
|
|
int metaState = sendMetaKeys(flags, 0, true);
|
|
_recv.sendKeyEvent(KeyEvent.ACTION_DOWN, key.eventCode, metaState);
|
|
_recv.sendKeyEvent(KeyEvent.ACTION_UP, key.eventCode, metaState);
|
|
sendMetaKeys(flags, metaState, false);
|
|
}
|
|
|
|
public static interface IReceiver
|
|
{
|
|
public void switchToNextInputMethod();
|
|
public void setPane_emoji();
|
|
public void setPane_normal();
|
|
public void showKeyboardConfig();
|
|
public void performAction();
|
|
|
|
public void switchMain();
|
|
public void switchNumeric();
|
|
public void switchProgramming();
|
|
|
|
public void sendKeyEvent(int eventAction, int eventCode, int meta);
|
|
|
|
public void commitText(String text);
|
|
public void commitChar(char c);
|
|
}
|
|
}
|