mirror of
https://github.com/Julow/Unexpected-Keyboard.git
synced 2024-11-22 15:23:11 +01:00
14dabb6f51
Before sending a key event while modifiers are active, send events for the modifier keys. Some applications don't look at the "metaState" flags but instead keep track of the up and down events for the modifiers. For example, the basic text views that are in every applications correctly handle the "metaState" flags except for one binding: Selecting text with the arrows while pressing shift.
102 lines
3.6 KiB
Java
102 lines
3.6 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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key = KeyModifier.handleFlags(key, flags);
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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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