kwin/scripts: Add convergentwindows and switch from kwin maximized mode

CMakeLists.txt

@@ -92,6 +92,7 @@ add_subdirectory(components)
 add_subdirectory(quicksettings)
 add_subdirectory(kcms)
 add_subdirectory(kded)
+add_subdirectory(kwin)
 
 find_program(PlasmaOpenSettings plasma-open-settings)
 set_package_properties(PlasmaOpenSettings PROPERTIES

kwin/CMakeLists.txt

@@ -0,0 +1 @@
+add_subdirectory(scripts)

kwin/scripts/CMakeLists.txt

@@ -0,0 +1,10 @@
+function(add_kwin_script name)
+    kpackage_install_package(${name} ${name} scripts kwin)
+
+    # Copy the script to the build directory so one can run tests without prior
+    # make install. FIXME: use add_custom_command.
+    file(COPY ${name} DESTINATION ${CMAKE_BINARY_DIR}/bin/kwin/scripts/)
+endfunction()
+
+add_kwin_script(convergentwindows)
+

kwin/scripts/convergentwindows/contents/code/main.js

@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: 2023 Plata Hill <plata.hill@kdemail.net>
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+function run(client) {
+  if (client.screen === 0) {
+    client.setMaximize(true, true);
+    client.noBorder = true;
+  } else {
+    client.noBorder = false;
+  }
+}
+
+workspace.clientAdded.connect((client) => {
+  if (client.normalWindow) {
+    client.clientFinishUserMovedResized.connect((client) => {
+      run(client);
+    });
+    run(client);
+  }
+});
+
+// Windows are moved from the external screen
+// to the internal screen if the external screen
+// is disconnected.
+workspace.numberScreensChanged.connect((count) => {
+  const clients = workspace.clientList();
+
+  for (var i = 0; i < clients.length; i++) {
+    if (clients[i].normalWindow) {
+      run(clients[i]);
+    }
+  }
+});

kwin/scripts/convergentwindows/metadata.json

@@ -0,0 +1,24 @@
+{
+    "KPlugin": {
+        "Name": "Convergent Windows",
+        "Description": "Removes window decorations and maximizes windows on the first screen only.",
+        "Icon": "preferences-system-windows",
+
+        "Authors": [
+            {
+                "Email": "plata.hill@kdemail.net",
+                "Name": "Plata Hill"
+            }
+        ],
+        "Id": "convergentwindows",
+        "ServiceTypes": [
+            "KWin/Script"
+        ],
+        "Version": "1.0",
+        "Licsense": "LGPL-2.1-or-later",
+        "Website": "https://invent.kde.org/plata/convergentwindows"
+    },
+    "X-Plasma-API": "javascript",
+    "X-Plasma-MainScript": "code/main.js"
+}
+