Re: Mouse Capture for Canvas

On Wed, Feb 9, 2011 at 11:37 PM, Brandon Andrews <> wrote:
> So what you'd prefer would be to allow the mouse to call
element.lockMouse(), element.unlockMouse() whenever it wanted. Then assume
the user-agent will perform restrictions?
> These restrictions would be asking the user to allow the action and
preventing abuse?
> Sounds good. This gets rid of the events completely.

The events should still exist, so you can tell if your request was accepted,
and you can tell if the browser has locked or unlocked the mouse for other
reasons, such as pressing a hotkey to release the mouse.  There should
probably also be a "lockrefused" event, to notify that a lock request was

> Assuming that a person can call the lock function whenever in any mouse or
keyboard event then there is no initial interaction required. Sounds like
what you want, and it would be very flexible.

This would still require initial interaction; for example, in the "lobby
timer" case, you'd still have to do something--click the screen or press a
key--to initiate it.

Methods for relaxing that can be explored later.  For example (as mentioned
just previously) a browser might allow locking the mouse without any
interaction if the page is fullscreened, or if the page is acting as a
standalone application (eg. an "application shortcut" in Chrome or a
Chromium packaged app).

(If this gains any traction, of course--agreeing about something here
doesn't automatically make things get implemented.  :)

Glenn Maynard

Received on Thursday, 10 February 2011 06:03:58 UTC