However, in some situations, I need to be able to perform alert,
prompt, ...
If I override nsIPrompt.idl for instance, I can decide whether or not
I must fake the dialog. In case I should not, is there a way to call
the former interface ?
You can't override nsIPrompt, that is just an interface, there's no
contract ID/CID associated with it.
Anyway, if you want to forward this to the previously registered
component, just get it by CID.
You are right about not overriding nsIPrompt. I don't know how to access
the previous component by CID.
Anyway, I have something that almost works. I created a component with
nsIPromptService CID and "@mozilla.org/embedcomp/prompt-service;1" ID.
Just before registering this component, I get the former prompt service
and store it. If I do so after registration, I get into a stack overflow.
Beside of that, I create a new nsIPromptEnableService interface and
related service, with enable() and disable() methods for the application
to allow or disallow prompting, and a isEnabled() function for my new
prompt service to decide if the alert-like function should be invoked
from the former prompt service.
It is working just fine for alert, confirm, promptUsernameAndPassword
functions, but strangely enough, it doesn't work for prompt(). If a
javascript code invokes the function prompt("Enter your name"), none of
my code is called and nothing happens.
I suspected the JS prompt() function to use nsIPrompt on
"@mozilla.org/network/default-prompt;1" instead of nsIPromptService, so
I wrote another component to override this, but I still don't get anything.
/mig
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