[Spice-devel] spice-html5 cursor positioning problem
jwhite at codeweavers.com
Fri Sep 12 12:36:54 PDT 2014
> I don't know about performance issues but I would suggest to calculate the pointer position relative to the canvas like this:
> var rect = sc.display.surfaces[sc.display.primary_surface].canvas.getBoundingClientRect();
> this.x = e.clientX - rect.left;
> this.y = e.clientY - rect.top;
I don't think I had any special reason for the method I used; I am not
mostly the result of my trial and error efforts.
So, it sounds worthwhile to me. (My only requirement is that any change
retain support for Firefox, Chrome,and IE).
> I'm not sure how SpiceMsgcMouseMotion would be changed since it takes the distance from the offsetParent into account but not any scrolling.
> In my tests I couldn't observe that function running (sc.mouse_mode == SPICE_MOUSE_MODE_CLIENT every time I checked). Can someone explain briefly or point me to an explanation about mouse modes and when they are used?
I also no longer recall the origins of that else code. I do know that
the spice-html5 client responds to any change in the mouse mode with a
request to use mouse mode client, so the expectation is that the
spice-html5 client will always operate in client mode.
I imagine it would be easy to test; in the v2 patch I've just pushed,
main.js, the new function, handle_mouse_mode, just invert the
client/server logic there. That should force the client into 'server'
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