Wayland support with keyboard emulation and capture using uinput

linux/README.md

@@ -8,5 +8,6 @@ distribution corresponding packages):
 - Treal support: `libusb` (1.0) and `libudev` are needed by
   the [`hidapi` package](https://pypi.org/project/hidapi/).
 - log / notifications support: `libdbus` is needed.
+- Uinput support: `libxkbcommon` are needed by the [`xkbcommon` package](https://pypi.org/project/xkbcommon)
 
 For the rest of the steps, follow the [developer guide](../doc/developer_guide.md).

news.d/feature/1679.linux.md

@@ -0,0 +1 @@
+Added keyboard emulation and capture using uinput, compatible with X11, Wayland and anything else on linux and bsd.

plover/gui_qt/main_window.py

@@ -9,6 +9,7 @@
 from PyQt5.QtWidgets import (
     QMainWindow,
     QMenu,
+    QApplication,
 )
 
 from plover import _, log
@@ -151,6 +152,14 @@ def set_visible(self, visible):
             else:
                 self.showMinimized()
 
+    def _is_wayland(self):
+        """
+        Calling .activateWindow() on a window results in this error:
+            Qt: Wayland does not support QWindow::requestActivate()
+        This function returns a boolean used to determine whether to run activateWindow()
+        """
+        return "wayland" in QApplication.platformName().lower()
+
     def _activate_dialog(self, name, args=(), manage_windows=False):
         if manage_windows:
             previous_window = wmctrl.GetForegroundWindow()
@@ -166,7 +175,8 @@ def on_finished():
                     wmctrl.SetForegroundWindow(previous_window)
             dialog.finished.connect(on_finished)
         dialog.showNormal()
-        dialog.activateWindow()
+        if not self._is_wayland():
+            dialog.activateWindow()
         dialog.raise_()
 
     def _add_translation(self, dictionary=None, manage_windows=False):
@@ -177,7 +187,8 @@ def _add_translation(self, dictionary=None, manage_windows=False):
 
     def _focus(self):
         self.showNormal()
-        self.activateWindow()
+        if not self._is_wayland():
+            self.activateWindow()
         self.raise_()
 
     def _configure(self, manage_windows=False):

plover/oslayer/linux/display_server.py

@@ -0,0 +1,9 @@
+import os
+
+"""
+This value should be one of:
+    - x11
+    - wayland
+    - tty
+"""
+DISPLAY_SERVER = os.environ.get("XDG_SESSION_TYPE", None)

plover/oslayer/linux/keyboardcontrol.py

@@ -1 +1,6 @@
-from .keyboardcontrol_x11 import KeyboardCapture, KeyboardEmulation # pylint: disable=unused-import
+from .display_server import DISPLAY_SERVER
+
+if DISPLAY_SERVER == "x11":
+    from .keyboardcontrol_x11 import KeyboardCapture, KeyboardEmulation # pylint: disable=unused-import
+else:
+    from .keyboardcontrol_uinput import KeyboardCapture, KeyboardEmulation #pylint: disable=unused-import