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Something blocks addEventListener(type, handler) to work in DOM

I'm learning Vanilla JS and DOM, and I'm testing some codes in console. I have a question.
Step 1) Navigate to website "http://rehub.wpsoul.com" in chrome.
Step 2) Open a console.
Step 3) Write down below code in console.
var neww = window.open('/')
neww.addEventListener('click', function() {
alert('hi');
})
This code is not working. However, if I change the event type from 'click' to 'scroll', it does work well.
What makes it hinder to work in DOM?
Whenever I tested this code, some websites does not work event type, 'load' like this website.
I've had a headache for this for a few days. I would like to know the reason and principle of DOM and JS.
I need your help, thanks! :)

As you are opening a new window and its DOM is not yet available or ready, the event is not getting bind. Please try following code:
var neww = window.open('/')
neww.addEventListener('load', function() {
neww.document.body.addEventListener('click', function() {
alert('hi');
});
});

Prevent copy on an empty iFrame (GWT RichTextArea)

I am required to prevent copy from a form. Using a oncopy handler works just fine on all <input/>-type fields.
Yet I fail to apply it to our "richtextarea", which is basically an empty iframe (src="about:blank" for what I have been able to gather; the page is GWT-generated, and the people before me developped quite an extensive framework around it).
I am able to get the iframe in the JavaScript, but I fail to have a correct handler (I tried adding one that logs, but it never does).
I have tried frame.oncopy, frame.contentWindow.oncopy, frame.contentWindow.document.oncopy, frame.contentDocument.oncopy. None of these does log to the console when I copy the iframe's content.
Does somebody have any lead for me? Any help appreciated (I've been stuck on this for some days now).
Having a cross-compatible solution would of course be ideal, but the main target is Firefox (the page is only open via a custom container based on Firefox 10).
Edit 2015-03-24
For those who want to try some debug script, the component I have trouble with is the one demonstrated here.
I have some native methods in the Java project to execute some custom JavaScript on it.
Below is some of the JavaScript I have unsuccessfully tried.
var frame = document.getElementsByTagName('iframe')[0];
function disallowCopy() {
alert('Gotcha!');
return false;
}
frame.oncopy = disallowCopy;
frame.contentWindow.oncopy = disallowCopy;
frame.contentWindow.document.oncopy = disallowCopy;
frame.contentWindow.document.body.oncopy = disallowCopy;
frame.contentDocument.oncopy = disallowCopy;

even though oncopy is a non standard event https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/oncopy and that there is no reliable way to prevent copying text,
you can check out the following bin
ensure the frame is loaded
use iframe.contentDocument.body to attch the event

How to remove an event out of content script scope?

I'm trying to unbind an event from a specific element and upon research, I found this. Which is useful. In itself. I didn't know you could do that. But:
Is there a way to make it work in a browser/Chrome extension? I'm talking about content scripts.
The reason why this doesn't work the way it's described there is that the website which has attached the event in question with its own script is using a different jQuery object than the one in my extension's includes/ folder. And I can try to search the event via jQuery._data(el, 'click'); but that is my jQuery object, not the one of the website where the events are apparently stored. I'm glad I figured that out after hours of fiddling around.
Or maybe it is possible to access the website's jQuery object itself?
EDIT:
What I'm ultimately trying to achieve works in theory but … it's complicated. The original script uses a plugin event and keeps reinstalling it with .on('mouseleave',….
Anyway, this is what I got thanks to you, pdoherty926:
var $el = $('div.slideshow');
$('h2', $el).click(function(){ console.log('ouch!'); }); // test event
var $slides = $('.slides', $el).detach();
$copy = $el.clone(false);
$slides.prependTo($copy);
$el.replaceWith($copy);
The test event doesn't get triggered but the event I'm actually trying to remove still fires. I can imagine figuring it out, though, now that I got closer to my goal.

Okay, the aforementioned re-installation on mouseleave really messed up this otherwise satisfying suggestion. (The site is using the jQuery Timer plug-in by Cyntaxtech). So here's how I solved it instead: I simply changed the class name (-.-' )
Now the re-installation code cannot find the element anymore.
This is how my finished script looks like:
function stop_happening() {
var $el = $('div.fullwall div.slideshow');
$el
// first, stop the current automation.
.timer('stop') // Timer plug-in
// next, change class name in order to prevent the timer
// from being started again.
.removeClass('slideshow').addClass('slideshow-disabled-automation');
//--- copied some extra code from the website itself for the onclick
// events which are supposed to keep working. I wish I could do *that*
// programmatically but I'm glad I got as far as I got. ---//
// […]
}

How do we set an onExpand event in a cfLayout accordion

We're using CFLayout to create a tab structure in our web application. After creation of that layout we call this function:
mytabs = ColdFusion.Layout.getTabLayout("#attributes.cflayoutName#");
mytabs.on('tabchange',
function(tablayout,tab) {
var tabtitle = tab.title;
alert(tabtitle); // Actual code does various useful 'stuff' here.
}
);
That piece of code works very well, and the alert will show each time the user clicks on a tab.
The problem is that we are now trying to do the same thing with a CFLayout type of "accordion", and I cannot get an event to fire when the user switches which accordion pane they are looking at. We've tried leaving the above as is, as well as changing the "tabchange" attribute to "expand", "beforeexpand", "activate", and "collapse".
For this testing I'm using the following simple JS function to avoid issues arising from the JS within the onchange event:
mytabs = ColdFusion.Layout.getAccordionLayout("#attributes.cflayoutName#");
mytabs.on('expand',
function(tablayout,tab) {
console.log('test');
}
);
We do not receive any errors. Nothing is logged to the console at all. I've tried replacing the console.log to an alert to rule out any problems with that line.

I found that the Ext library documentation to be very helpful with finding a solution to this problem: here.
The Ext library has a getComponent method that allows you to reference the accordion layout panel that you are trying to add the expand event to. Once you have this, you can use the "on" method you are using above to assign the expand event to each panel individually.
for (x=1; x<accordionLayoutArray.length; x++) {
mytabs.getComponent(accordionPanelName).on('expand',
function(tab) { ... });
}

This became too long for a comment so adding as an answer
After some Google searches I found what I think are some related posts. It appears as though the accordion in Ext JS does not have the same events as the tab. Instead you need to add a listener in order to catch the expanding.
See this post - in case something happens to that page here is the relevant piece:
You'd need to listen to the expand event of the child panels in the accordion, you could do something like:
Code:
myAccordion.add(myFunc('myTitle'));
function myFunc(title)
{
return new Ext.Panel(
{
title: title,
listeners: { 'expand': {fn: something, scope: foo}}
}
);
}
And I also found another similar post here on SO - see both answers
Once you know that the accordion needs a listener you can find a number of results on Google. Such as How do I attach an event handler to a panel in extJS?
This Google search will give you lots of examples.
Hope that helps.

Programmatically activating a custom TinyMCE button

I've got a lot of custom buttons on my TinyMCE toolbar, most of which open a dialog box with some further options in when you click them. This all works fine.
Here is an example of something in my tinyMCE_setup() function:
ed.addButton('link2', {
title: '{!link!}',
image: '../style/common/images/link_20x20.png',
onclick: function() {
replyBoxDialog('link', ed);
}
});
However, I want to be able to call these programatically, and faking a .click() on the button with jQuery won't cut it.
I've tried calling the function directly
replyBoxDialog('link',tinyMCE);
But no matter what I try as the second argument, I can't get the right object (so it fails when it's time to insert something into the editor, as it doesn't know what the editor is).
I've also had a try with various execCommand() calls, but I've no idea what to put in there.
Any clues?

All you have to do is to use a real editor object as paramter
var editor_instance = tinymce.activeEditor; // in case you just use one editor
var editor_instance = tinymce.get('my_special_editor_id'); // in case you have more than one editor
replyBoxDialog('link', editor_instance);

I've managed to make it work by creating a variable 'globalEd' at the top of the script and adding globalEd = ed; to tinyMCE_setup(), then I can call replyBoxDialog('dragndrop', globalEd);. This seems like a properly hacky way of doing things though, so I'd welcome any further advice.