We have a C++ application that calls a JS based XPCOM component and
passes it a nsIDOMWindow object. But we have trouble registering event
handlers for the DOM window.
// based on mozembed / https://wiki.mozilla.org/Embedding/NewApi
nsCOMPtr<nsIWebBrowser> mWebBrowser;
..
NS_IMETHODIMP WebBrowserChrome::OnStateChange(
nsIWebProgress *aWebProgress,
nsIRequest *aRequest,
PRUint32 aStateFlags, nsresult aStatus)
{
nsCOMPtr<nsIDOMWindow> contentWin;
nsresult rv_contentWin =
mWebBrowser->GetContentDOMWindow(getter_AddRefs(contentWin));
// m_c is the our component
nsresult rv = m_c->SetBrowserWindow(contentWin);
}
Inside the component we want to register events on the passed window object.
// the component's interface
[scriptable, uuid(1b0946b6-0e2d-4848-ae6b-299052d7a19d)]
interface OurComponent : nsISupports
{
void setBrowserWindow(in nsIDOMWindow win);
// other methods
};
// The implementation looks like this:
setBrowserWindow : function (browserWindow) {
browserWindow.document.location = "http://foo.com/";;
browserWindow.addEventListener("DOMContentLoaded",
function() {
dump("Called\n");
}, false);
}
The code executes without errors, however the registered events are not
triggered.
It looks like registering for events on the document
(browserWindow.document) object itself works just fine (such as mouseover).
Is it possible that we have missed some security restrictions that
prevents registering events on the window object events?
Any hints appreciated. Thanks.
/ Adam
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