Separate "handler" code

As with the previous commit, remove casts of the context. The "handler" object is referenced in the "config" object for now.
2021-12-28 17:47:18 +01:00
parent 0190cfc29a
commit 15ce200ce3
6 changed files with 139 additions and 73 deletions
@@ -0,0 +1,76 @@
+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)
+  {
+    key = KeyModifier.handleFlags(key, flags);
+    switch (key.eventCode)
+    {
+    case KeyValue.EVENT_CONFIG: _recv.showKeyboardConfig(); return;
+    case KeyValue.EVENT_SWITCH_TEXT: _recv.setLayout(-1); return;
+    case KeyValue.EVENT_SWITCH_NUMERIC: _recv.setLayout(R.xml.numeric); 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;
+    default:
+      if ((flags & (KeyValue.FLAG_CTRL | KeyValue.FLAG_ALT)) != 0)
+        handleMetaKeyUp(key, flags);
+      else if (key.char_ != KeyValue.CHAR_NONE)
+        _recv.commitChar(key.char_);
+      else if (key.eventCode != KeyValue.EVENT_NONE)
+        handleMetaKeyUp(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 void handleMetaKeyUp(KeyValue key, int flags)
+  {
+    int meta = 0;
+    if (key.eventCode == KeyValue.EVENT_NONE)
+      return ;
+    if ((flags & KeyValue.FLAG_CTRL) != 0)
+      meta |= KeyEvent.META_CTRL_LEFT_ON | KeyEvent.META_CTRL_ON;
+    if ((flags & KeyValue.FLAG_ALT) != 0)
+      meta |= KeyEvent.META_ALT_LEFT_ON | KeyEvent.META_ALT_ON;
+    if ((flags & KeyValue.FLAG_SHIFT) != 0)
+      meta |= KeyEvent.META_SHIFT_LEFT_ON | KeyEvent.META_SHIFT_ON;
+    _recv.sendKeyEvent(key.eventCode, meta);
+  }
+
+  public static interface IReceiver
+  {
+    public void switchToNextInputMethod();
+    public void setPane_emoji();
+    public void setPane_normal();
+    public void showKeyboardConfig();
+
+    /** 'res_id' is '-1' for the currently selected layout. */
+    public void setLayout(int res_id);
+
+    public void sendKeyEvent(int eventCode, int meta);
+
+    public void commitText(String text);
+    public void commitChar(char c);
+  }
+}