In my firefox extension I'm creating a xul:browser element. I want to have an observer that intercepts any url changes within the embedded browser and opens the url in a new browser tab (in the main browser). I'd also like new windows spawned by the xul:browser window to open in a tab instead of a new browser window.
I've created an observer which works, but I don't yet know how to apply that observer only to the xul:browser element.
function myFunction(){
var container = jQuery("#container")[0];
var new_browser_element = document.createElement('browser');
container.appendChild(new_browser_element);
var observerService = Components.classes["@mozilla.org/observer-service;1"].getService(Components.interfaces.nsIObserverService);
observerService.addObserver(myObserver, "http-on-modify-request", false);
}
var myObserver = {
observe: function(aSubject, aTopic, aData){
if (aTopic != 'http-on-modify-request'){
aSubject.QueryInterface(Components.interfaces.nsIHttpChannel);
// alert(aSubject.URI.spec);
// Now open url in new tab
}
},
QueryInterface: function(iid){
if (!iid.equals(Components.interfaces.nsISupports) &&
!iid.equals(Components.interfaces.nsIObserver))
throw Components.results.NS_ERROR_NO_INTERFACE;
return this;
}
};
Best Answer
You could try:
I'll update this to fill in the blanks in a bit.
edit: see http://forums.mozillazine.org/viewtopic.php?p=2772951#p2772951 for how to get the source window of a request.
Request cancellation code from http://zenit.senecac.on.ca/wiki/index.php/Support_For_OpenID.
see http://mxr.mozilla.org/mozilla-central/source/netwerk/base/public/nsIRequest.idl for details on nsIRequest.
See http://forums.mozillazine.org/viewtopic.php?p=2404533#p2404533 and https://developer.mozilla.org/en/XUL/Method/addTab for the definition of addTab.
parseQuery comes from http://blog.strictly-software.com/2008/10/using-javascript-to-parse-querystring.html.
See https://developer.mozilla.org/en/Code_snippets/Post_data_to_window#Preprocessing_POST_data for how to process post data in a form suitable for addTab.
ReadPostFromText and ReadTextFromStream both come from firebug (though slightly modified)