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Re: Can't get speechSynthesizer:didFinishSpeaking: to run on OS X
From: |
Adrian Robert |
Subject: |
Re: Can't get speechSynthesizer:didFinishSpeaking: to run on OS X |
Date: |
Wed, 23 Jun 2010 07:42:38 +0000 (UTC) |
User-agent: |
Loom/3.14 (http://gmane.org/) |
Ivan Andrus <darthandrus <at> gmail.com> writes:
>
> I would like to add GNUstep/Cocoa speech synthesis to my local copy of emacs.
I know this is an GNUstep/OS X
> only feature and that it will probably never make it into emacs.
It's not impossible -- features for the X11 interface at least, whether
implemented/implementable elsewhere, often make it in. I can't speak to what
the criteria are for these kinds of things. Anyway it sounds like an
interesting project.
> and I have set an instance as a delegate to an NSSpeechSynthesizer object, but
it never fires. If I call it
> manually as
>
> [[speech_synthesizer delegate] speechSynthesizer: speech_synthesizer
didFinishSpeaking: YES];
>
> it works, so I don't think there is a problem with the callback, or the
delegate. I read at
> http://lists.apple.com/archives/cocoa-dev/2009/Feb/msg00624.html
> that asynchronous callbacks rely on the runloop. I think Emacs.app does some
weird things with the
> runloop, so my question is, what must I do to get this to work? Is it even
possible? Does Emacs.app even use
> the runloop?
Emacs.app activates the run loop in a kind of stutter-step fashion using [NSApp
run] followed by [NSApp stop] repeatedly. Certain asynchronous events work,
like open-file requests to the NSApplication delegate, and NSTextInput
callbacks. I cannot recall any that positively DON'T work at the moment. I
don't know if the system is handling the ones I mention differently from the
callback you're trying to get, but anyway it seems worth looking into a bit
more.
One thing to check -- I have no idea how the speech synth subsystem works, but
if system events are involved you can intercept and print those in the
-sendEvent: method in nsterm.m.
-Adrian