[GUACAMOLE-534] Mouse cursor goes out of sync when VNC display is scaled

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Invalid
• Component/s: guacamole-common-js
• Assignee: Unassigned
• Reporter: Charitha Dandeniya Arachchige
• Created: 02/Apr/18 19:34
• Updated: 02/Apr/18 19:48
• Resolved: 02/Apr/18 19:48

Description

I'm using guacamole-common-js to write a JS client to connect to a remote desktop via VNC protocol. Following is the code I use to add Guacamole client to the display div. I'm using the scale() function to scale the VNC window. 

var display = document.getElementById("display");
var guac = new Guacamole.Client(new Guacamole.HTTPTunnel("tunnel"));
display.appendChild(guac.getDisplay().getElement());
display.scale(0.9);

When I do this the mouse cursor is going out of sync. There is a gap between the actual cursor and the remote cursor. I could fix this by correcting the mouse position in the sendMouseState() function of Client module. I have attached the scaleFix.diff file which includes this fix. I hope this would be useful.