On Fri, Feb 13, 2009 at 7:40 AM, Amanda Walker <ama...@chromium.org> wrote:
> On Fri, Feb 13, 2009 at 1:34 AM, Dean McNamee <de...@chromium.org> wrote:
> > I believe the situation is similar on the Mac. I'm not sure the
> > current design of passing HWNDs between processes conceptually extends
> > beyond win32.
>
> The situation on the Mac is similar. There's an internal window
> server ID for each window; this is unique per user session (roughly,
> per "active desktop", of which each tree of processes can talk to only
> one). This can be sent around between processes, but it's not what
> any of the UI APIs take. There's enough state in the per-process
> window structures that it's difficult to just pass window IDs around
> as a reference to a window (for example, the public API only support
> using this to read window properties, not actually for manipulating
> windows or their contents). While we may decide it's worth using SPIs
> for performance reasons in the long run, it would be nice to start
> with an above-board implementation. In addition, things like iframes
> and NPAPI plugins don't actually get their own windows in the HWND
> sense on the Mac, even in the single-process case (such as Safari), so
> the win32 design is already a bit of a mismatch. An ID that can be
> treated as an HWND under Windows, and an index into a table or map on
> the Mac and/or Linux would probably work fine. It's just that a lot
> of the windows code currently doesn't distinguish between the various
> uses of HWNDs, and other platforms may need to.
>
> --Amanda
>
I thought on the mac, we were just going to support windowless mode. This
discussion of passing HWNDs or XwindowIDs only pertains to windowed mode
plugins.
Is there a windowed mode for mac that we need to worry about?
-Darin
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