mirror of
https://github.com/Julow/Unexpected-Keyboard.git
synced 2024-11-22 15:23:11 +01:00
e872c58788
Modifiers can temporarily remove a key from the layout by returning 'null'. Make sure pointer handling code handle these modified keys gracefully and doesn't trigger a key event and a vibration for the removed key.
103 lines
3.7 KiB
Java
103 lines
3.7 KiB
Java
package juloo.keyboard2;
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import android.view.KeyEvent;
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class KeyEventHandler implements Config.IKeyEventHandler
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{
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private IReceiver _recv;
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public KeyEventHandler(IReceiver recv)
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{
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_recv = recv;
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}
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public void handleKeyUp(KeyValue key, int flags)
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{
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if (key == null || (key.flags & KeyValue.FLAG_NOCHAR) != 0)
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return;
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switch (key.eventCode)
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{
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case KeyValue.EVENT_CONFIG: _recv.showKeyboardConfig(); return;
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case KeyValue.EVENT_SWITCH_TEXT: _recv.setLayout(-1); return;
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case KeyValue.EVENT_SWITCH_NUMERIC: _recv.setLayout(R.xml.numeric); return;
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case KeyValue.EVENT_SWITCH_EMOJI: _recv.setPane_emoji(); return;
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case KeyValue.EVENT_SWITCH_BACK_EMOJI: _recv.setPane_normal(); return;
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case KeyValue.EVENT_CHANGE_METHOD: _recv.switchToNextInputMethod(); return;
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case KeyValue.EVENT_ACTION: _recv.performAction(); return;
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default:
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if ((flags & (KeyValue.FLAG_CTRL | KeyValue.FLAG_ALT | KeyValue.FLAG_META)) != 0)
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handleKeyUpWithModifier(key, flags);
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else if (key.char_ != KeyValue.CHAR_NONE)
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_recv.commitChar(key.char_);
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else if (key.eventCode != KeyValue.EVENT_NONE)
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handleKeyUpWithModifier(key, flags);
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else
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_recv.commitText(key.symbol);
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}
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}
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// private void handleDelKey(int before, int after)
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// {
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// CharSequence selection = getCurrentInputConnection().getSelectedText(0);
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// if (selection != null && selection.length() > 0)
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// getCurrentInputConnection().commitText("", 1);
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// else
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// getCurrentInputConnection().deleteSurroundingText(before, after);
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// }
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private int sendMetaKey(int eventCode, int metaFlags, int metaState, boolean down)
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{
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int action;
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int updatedMetaState;
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if (down) { action = KeyEvent.ACTION_DOWN; updatedMetaState = metaState | metaFlags; }
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else { action = KeyEvent.ACTION_UP; updatedMetaState = metaState & ~metaFlags; }
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_recv.sendKeyEvent(action, eventCode, metaState);
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return updatedMetaState;
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}
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/* Send key events corresponding to pressed modifier keys. */
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private int sendMetaKeys(int flags, int metaState, boolean down)
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{
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if ((flags & KeyValue.FLAG_CTRL) != 0)
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metaState = sendMetaKey(KeyEvent.KEYCODE_CTRL_LEFT, KeyEvent.META_CTRL_LEFT_ON | KeyEvent.META_CTRL_ON, metaState, down);
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if ((flags & KeyValue.FLAG_ALT) != 0)
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metaState = sendMetaKey(KeyEvent.KEYCODE_ALT_LEFT, KeyEvent.META_ALT_LEFT_ON | KeyEvent.META_ALT_ON, metaState, down);
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if ((flags & KeyValue.FLAG_SHIFT) != 0)
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metaState = sendMetaKey(KeyEvent.KEYCODE_SHIFT_LEFT, KeyEvent.META_SHIFT_LEFT_ON | KeyEvent.META_SHIFT_ON, metaState, down);
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if ((flags & KeyValue.FLAG_META) != 0)
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metaState = sendMetaKey(KeyEvent.KEYCODE_META_LEFT, KeyEvent.META_META_LEFT_ON | KeyEvent.META_META_ON, metaState, down);
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return metaState;
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}
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/*
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* Don't set KeyEvent.FLAG_SOFT_KEYBOARD.
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*/
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private void handleKeyUpWithModifier(KeyValue key, int flags)
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{
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if (key.eventCode == KeyValue.EVENT_NONE)
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return ;
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int metaState = sendMetaKeys(flags, 0, true);
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_recv.sendKeyEvent(KeyEvent.ACTION_DOWN, key.eventCode, metaState);
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_recv.sendKeyEvent(KeyEvent.ACTION_UP, key.eventCode, metaState);
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sendMetaKeys(flags, metaState, false);
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}
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public static interface IReceiver
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{
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public void switchToNextInputMethod();
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public void setPane_emoji();
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public void setPane_normal();
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public void showKeyboardConfig();
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public void performAction();
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/** 'res_id' is '-1' for the currently selected layout. */
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public void setLayout(int res_id);
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public void sendKeyEvent(int eventAction, int eventCode, int meta);
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public void commitText(String text);
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public void commitChar(char c);
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}
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}
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