a KDE Wallpaper Engine API that interacts with the mouse and tells control points where the mouse is, we can utilize KWin scripting. KWin is KDE's window manager, and it allows for scripting in JavaScript using the Plasma Desktop API. This approach will let you track the mouse position and send that information to control points for dynamic wallpaper effects.
Here’s a high-level outline of how to implement this:
Set up a KWin Script to Track Mouse Position
KWin allows JavaScript-based extensions to manipulate windows and track input. We can create a script that listens to mouse movement events and outputs the current position.
Example of a KWin Script (JavaScript):
javascript
// Load the KWin workspace API
workspace.clientAdded.connect(function(client) {
console.log("Client added: " + client.windowId);
});
// Connect to mouse motion events
workspace.connect("mouseMoved", function(pos) {
let x = pos[0]; // x-coordinate of mouse
let y = pos[1]; // y-coordinate of mouse
// Now send the mouse position to control points
updateControlPoints(x, y);
});
function updateControlPoints(x, y) {
// Logic to update control points in the wallpaper engine
console.log("Mouse at: " + x + ", " + y);
// Send the position to the wallpaper engine or another service
}
In this script, whenever the mouse moves, the mouseMoved signal is triggered, and the updateControlPoints function will update the wallpaper's control points.
Set Up a WebSocket or REST API for Communication
To communicate this information with a wallpaper engine or another external system, you can either expose a WebSocket or REST API from the KWin script or another external service that receives the mouse position and sends it to the wallpaper engine.
Here’s an example of setting up a WebSocket server in Node.js (which you can run separately or as part of the desktop environment):
Example of a WebSocket Server:
function sendMousePosition(x, y) {
const data = JSON.stringify({ x: x, y: y });
// Broadcast mouse position to all connected clients
wss.clients.forEach(function each(client) {
if (client.readyState === WebSocket.OPEN) {
client.send(data);
}
});
}
You can modify the updateControlPoints function to call sendMousePosition(x, y) and transmit the position data to any client connected to the WebSocket.
Receiving Data in the Wallpaper Engine
On the wallpaper engine side, you can set up an interface (assuming you have control over it) to receive this mouse position data and use it to modify the wallpaper’s control points dynamically.
If you’re creating a custom wallpaper engine using something like QML or Python, the control points could be manipulated in real-time by reading the data sent from the WebSocket server.
Example in QML (if the wallpaper engine supports QML):
// WebSocket connection to receive mouse position
WebSocket {
url: "ws://localhost:8080"
onMessageReceived: {
var mouseData = JSON.parse(message);
controlPoint.updatePosition(mouseData.x, mouseData.y);
}
}
This QML code listens to the WebSocket and updates the control point's position on the screen based on the mouse position.
Wrap-up
This solution involves:
KWin scripting to capture mouse movement in real-time.
A WebSocket (or REST API) for communicating the mouse position.
A wallpaper engine (possibly using QML) that receives and acts on the mouse position.
You can expand this to support multiple control points or different types of interactions with your wallpaper.
a KDE Wallpaper Engine API that interacts with the mouse and tells control points where the mouse is, we can utilize KWin scripting. KWin is KDE's window manager, and it allows for scripting in JavaScript using the Plasma Desktop API. This approach will let you track the mouse position and send that information to control points for dynamic wallpaper effects.
Here’s a high-level outline of how to implement this:
KWin allows JavaScript-based extensions to manipulate windows and track input. We can create a script that listens to mouse movement events and outputs the current position. Example of a KWin Script (JavaScript):
javascript
// Load the KWin workspace API workspace.clientAdded.connect(function(client) { console.log("Client added: " + client.windowId); });
// Connect to mouse motion events workspace.connect("mouseMoved", function(pos) { let x = pos[0]; // x-coordinate of mouse let y = pos[1]; // y-coordinate of mouse
});
function updateControlPoints(x, y) { // Logic to update control points in the wallpaper engine console.log("Mouse at: " + x + ", " + y); // Send the position to the wallpaper engine or another service }
In this script, whenever the mouse moves, the mouseMoved signal is triggered, and the updateControlPoints function will update the wallpaper's control points.
To communicate this information with a wallpaper engine or another external system, you can either expose a WebSocket or REST API from the KWin script or another external service that receives the mouse position and sends it to the wallpaper engine.
Here’s an example of setting up a WebSocket server in Node.js (which you can run separately or as part of the desktop environment): Example of a WebSocket Server:
javascript
const WebSocket = require('ws');
const wss = new WebSocket.Server({ port: 8080 });
wss.on('connection', ws => { console.log('Client connected');
ws.on('message', message => { console.log(
Received: ${message}
); });ws.send('Mouse data stream active'); });
function sendMousePosition(x, y) { const data = JSON.stringify({ x: x, y: y });
// Broadcast mouse position to all connected clients wss.clients.forEach(function each(client) { if (client.readyState === WebSocket.OPEN) { client.send(data); } }); }
You can modify the updateControlPoints function to call sendMousePosition(x, y) and transmit the position data to any client connected to the WebSocket.
On the wallpaper engine side, you can set up an interface (assuming you have control over it) to receive this mouse position data and use it to modify the wallpaper’s control points dynamically.
If you’re creating a custom wallpaper engine using something like QML or Python, the control points could be manipulated in real-time by reading the data sent from the WebSocket server. Example in QML (if the wallpaper engine supports QML):
qml
Rectangle { id: controlPoint width: 10 height: 10 color: "red"
}
// WebSocket connection to receive mouse position WebSocket { url: "ws://localhost:8080"
}
This QML code listens to the WebSocket and updates the control point's position on the screen based on the mouse position.
This solution involves:
You can expand this to support multiple control points or different types of interactions with your wallpaper.