// ************************************************************************** //
// XPCOM

var {classes: Cc, interfaces: Ci, utils: Cu} = Components;

// https://developer.mozilla.org/en-US/docs/Mozilla/JavaScript_code_modules/Services.jsm
Cu.import("resource://gre/modules/Services.jsm");


function install(data, reason) {
}

function startup(data, reason) {
    let windows = Services.wm.getEnumerator("navigator:browser");
    while (windows.hasMoreElements()) {
        let aWindow = windows.getNext().QueryInterface(Ci.nsIDOMWindow);
        aWindow.addEventListener("click", clicker, true);
    }

    Services.wm.addListener(windowListener);
}

function shutdown(data, reason) {
    let windows = Services.wm.getEnumerator("navigator:browser");
    while (windows.hasMoreElements()) {
        let aWindow = windows.getNext().QueryInterface(Ci.nsIDOMWindow);
        aWindow.removeEventListener("click", clicker, true);
    }
}

function uninstall(data, reason) {
}


var clicker = function(e) {
    let aWindow = Services.wm.getMostRecentWindow("navigator:browser");
    Services.console.logStringMessage("hello_instanceof [target]: " + e.target);
    Services.console.logStringMessage("hello_instanceof [match with]: " + aWindow.HTMLElement);
    Services.console.logStringMessage("hello_instanceof [result window]: " + (e.target instanceof aWindow.HTMLElement) );
    Services.console.logStringMessage("hello_instanceof [result nsIDOM]: " + (e.target instanceof Components.interfaces.nsIDOMHTMLElement) );
};


var windowListener = {
    onOpenWindow: function(aWindow) {
        // Wait for the window to finish loading
        let domWindow = aWindow.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindow);
        domWindow.addEventListener("load", function() {
            domWindow.removeEventListener("load", arguments.callee, false);
            domWindow.addEventListener("click", clicker, true);
        }, false);
    },

    onCloseWindow: function(aWindow) {},
    onWindowTitleChange: function(aWindow, aTitle) {}
};