Bug 4247 – addEventListener in Obj-C does not work

• Component: DOM
• Status: RESOLVED FIXED

[Adriaan Tijsseling]

See the thread here:
http://lists.apple.com/archives/Webkitsdk-dev/2005/May/msg00050.html
In short, adding event listeners via Obj-C has no effect. WebKit doesn't call handleEvent on the target 
(which conforms to the EventListener protocol).

[Darin Adler]

Uh oh. I see why:

- (void)addEventListener:(NSString *)type :(id <DOMEventListener>)listener :(BOOL)useCapture
{
    ERROR("unimplemented");
}

- (void)removeEventListener:(NSString *)type :(id <DOMEventListener>)listener :(BOOL)useCapture
{
    ERROR("unimplemented");
}

[Darin Adler]

Created attachment 3190 [details]
patch to implement this

[Darin Adler]

Comment on attachment 3190 [details]
patch to implement this

Anders said he tried this out and it worked.

[Eric Seidel (no email)]

Comment on attachment 3190 [details]
patch to implement this

Looks fine.  Two comments:

1.  I don't understand the ListenerMap map = listenerMap; dance that you do in
two places.  You had made some comment before about locals being faster to
access... but particularly in the ObjCEventListener::find case it seems
superfluous.

2.  Although I personally agree with the style of returning objects
ref-counted... ObjCEventListener::create differs from the rest of the C++ code
in WebCore by doing so.  I think that wrapper should be returned floating and
stuck into a SharedPtr if necessary, or simply returned as a
SharedPtr<ObjCEventListener> for consistancy.

I'll leave those corrections to your discression.  r=me.

[Eric Seidel (no email)]

As ggaren correctly points out, all of these really should have layout tests.  For better or worse I ignored 
that fact, realizing that we don't currently (AFAIK) have any way of testing the Obj-C DOM API.  I talked 
with andersca a bit on IRC, he said he started the py-objc Obj-C DOM testing system, but hasn't finished 
yet.

[Geoffrey Garen]

OK, since we don't have a way to test the bindings yet, I'm landing this without a test.

[Alice Liu]

<rdar://problem/4562444>