feat: DMS Cursor Control - Size & Theme in niri

quickshell/Services/NiriService.qml

@@ -145,6 +145,20 @@ Singleton {
         }
     }
 
+    Process {
+        id: writeCursorProcess
+        property string cursorContent: ""
+        property string cursorPath: ""
+
+        onExited: exitCode => {
+            if (exitCode === 0) {
+                console.info("NiriService: Generated cursor config at", cursorPath);
+                return;
+            }
+            console.warn("NiriService: Failed to write cursor config, exit code:", exitCode);
+        }
+    }
+
     Process {
         id: ensureOutputsProcess
         property string outputsPath: ""
@@ -1090,6 +1104,59 @@ Singleton {
         writeBlurruleProcess.running = true;
     }
 
+    function generateNiriCursorConfig() {
+        if (!CompositorService.isNiri)
+            return;
+
+        console.log("NiriService: Generating cursor config...");
+
+        const settings = typeof SettingsData !== "undefined" ? SettingsData.cursorSettings : {
+            theme: "System Default",
+            size: 24,
+            niri: {}
+        };
+        const themeName = settings.theme === "System Default" ? (SettingsData.systemDefaultCursorTheme || "") : settings.theme;
+        const size = settings.size || 24;
+        const hideWhenTyping = settings.niri?.hideWhenTyping || false;
+        const hideAfterMs = settings.niri?.hideAfterInactiveMs || 0;
+
+        const dmsWarning = `// ! DO NOT EDIT !
+// ! AUTO-GENERATED BY DMS !
+// ! CHANGES WILL BE OVERWRITTEN !
+// ! PLACE YOUR CUSTOM CONFIGURATION ELSEWHERE !
+
+`;
+
+        let cursorContent = dmsWarning + `cursor {\n`;
+
+        if (themeName) {
+            cursorContent += `    xcursor-theme "${themeName}"\n`;
+        }
+        cursorContent += `    xcursor-size ${size}\n`;
+
+        if (hideWhenTyping) {
+            cursorContent += `    hide-when-typing\n`;
+        }
+
+        if (hideAfterMs > 0) {
+            cursorContent += `    hide-after-inactive-ms ${hideAfterMs}\n`;
+        }
+
+        cursorContent += `}`;
+
+        const configDir = Paths.strip(StandardPaths.writableLocation(StandardPaths.ConfigLocation));
+        const niriDmsDir = configDir + "/niri/dms";
+        const cursorPath = niriDmsDir + "/cursor.kdl";
+
+        writeCursorProcess.cursorContent = cursorContent;
+        writeCursorProcess.cursorPath = cursorPath;
+
+        const escapedCursorContent = cursorContent.replace(/'/g, "'\\''");
+
+        writeCursorProcess.command = ["sh", "-c", `mkdir -p "${niriDmsDir}" && printf '%s' '${escapedCursorContent}' > "${cursorPath}"`];
+        writeCursorProcess.running = true;
+    }
+
     function updateOutputPosition(outputName, x, y) {
         if (!outputs || !outputs[outputName])
             return;