Develop Reference

Trying to create a Pop Up "Modal" window with specific information inside

So I'm new to JavaScript so I'm unsure how to setup my code.
Before explaining its vital to look at my code -
https://jsfiddle.net/avaris/bexn436s/
When right clicking inside a container a custom context menu pops up with a button, the button makes div (line 1) visible.
I'm trying to make it so if you open the context menu by right clicking inside container4 on line 38 (or any other container) whatever is in ID & NAME class will match infoID, infoName of div (line 1).
All I'm looking for is advice or direction on possible solutions.
If opened by right clicking on "NAME4"
<p class="NAME4">Valentine</p> (line 41)
to
<p class="infoName"></p> (line 4)
The context menu script starts on line 61 and you determine in which element the context menu displays at line 144:
var taskItemClassName = "container";
-
I've tested everything but could not figure out a setup due to accessing the "info page" through the custom context menu made it way out of my expertise.
Any direction is all i'm looking for.
Tried to keep it short but if i explained poorly i'd love to give any more information.

You can use the title attribute for each of your components. If you hover over a particular item, you can get the intended value. Using JS you can add the title tag for each of your list components.

Aurelia JS - multi level binding/update?

I'm not sure whether I'm using the right terminology here - but here is an example:
https://gist.run/?id=57ed46429e4583eb4c3fb11814451a55
This is how it looks like in Chromium:
Basically, the entries on top (red outline) are a visualization of an array as the "first-level" data display; here one can toggle each element's selection, and make a multi-element selection (red background). The array that is the source of the "first-level" display is mydata in first-level-items.js.
Those items that are selected in "first-level", are then shown again in "second-level" (green outline); here the same information of name and value is displayed, although a bit differently. Here also one can toggle an elements selection - but only one "second-level" element can be selected. The array that is the source of the "second-level" display is myseldata in second-level-items.js.
The intent here, is that once a "second-level" selection has been made, a slider appears, to change the .value property of the particular object which is the selected array element.
My original question (which is why I started this post/example at all), was:
How do I ensure that whenever the slider is changed, the value is updated in both second-level and first-level display?
... however, for reasons beyond me, this in fact does work somewhat in this gist.run example (but it still doesn't work in my actual project, which forced me to come up with the example to begin with). Also it only works somewhat, in the sense that when loading the example page at first, after making first and second level selections, and then changing the slider, the .value will be updated in both first- and second-level display. But as soon as I try deselecting on second level - or changing the selection on second level - then updating stops. So, I guess this question still stands...
After a second-level selection has been made, deselecting on second level (by clicking to toggle) does NOT remove the slider; how can I have it behave like that?
The update happens only on the slider's onChange - basically, while you drag and slide, this component emits onSlide, but it will generate onChange only at the end when the mouse is released (that is, when the sliding has stopped). How can I update both first- and second- level display while the slider is sliding?
And finally - is this how this kind of a problem is best addressed in Aurelia? That is - I currently have one array in first-level-items.js; first-level-items.js then has a singleton reference to second-level-items.js, so it can call a method within it, to change a filtered copy of the array on the second level, which then serves as a source both for second-level display and the slider... Is there a better way to organise this?

Boy, this was a pain, but here's what I think is the solution:
https://gist.run/?id=c09fea3b82a9ebc41e0a4c90e8665b04
Here are some notes:
Apparently, there is something wrong applying if.bind or show.bind on the input element of the slider - instead, the input element should be put in an enclosing div, and the div should have if/show.bind applied
Furthermore, if.bind should not be used, as it re-instantiates the slider element - use show.bind so we can get a reference to the slider widget at start already, even if it is hidden
Seemingly, using TaskQueue in attached() is the only way to get a reference to the slider at start
Once we have a reference to the widget, re-apply it on each second level element, whenever they change
Do not set this.myselChanging to null to specify no target of the slider (simply count on hiding the slider appropriately)
For a continuous change (onSlide), simply use this.myselChanging.value = e.value; in the handler - both first-level and second-level values will be changed
Beyond this, it seems arrays are copied by reference, so the multi-level update happens without further intervention...
Though, would still love to know what is the proper way to do this...

Any issues with hiding a select list behind a div and selecting it with JavaScript?

I need to horizontally center text in a select list, specifically for android and iphones. It seems this cant be done with CSS so im looking for a workaround.
I was thinking about hiding the input behind a div with centered text, and using JavaScript to select the input when you click on the div. I would then need to change the text in the div to equal that of the selected option. If the div was created with JavaScript then the page would will be usable with JavaScript disabled.
I had another idea but this seems trickier to me. I could use JavaScript to get the screen width, apply a calculation, and then apply the right amount of text indentation to the input.
Im interested in best practice but this is a demo project not a live one. Im using jQuery. Thanks
UPDATE - Ive tried the following, where the div#cover covers a select input. It works fine in my iPad. However my old Android wont always focus on the input. Firefox does focus on the input but the options dont fly you, you have to scroll them with arrow keys. So it seems this solution is not as simple as id hoped.
$('div#cover').click(function(){
$('#select').focus();
});

Your idea on hiding the select behind the div looks OK
I did a more complex thing - completely hiding the select, replacing it with HTML, doing all interaction from JS and all styling in CSS and reflecting the changes to the underlying select (which can for instance be submitted as a form element in a normal way)
The jQuery plugin I wrote was very tiny anyway, as I put all styles and positions in CSS which gave me the full control over the appearance and big flexibility

Code is from here: jQuery - function runs fine when fired on div click, but not on page load
function textIndentFunc () {
textString = $('#from-1 :selected').text();
$('#hidden').text(textString);
textWidth = $('#hidden').width();
inputWidth = $('#from-1 select').width();
indentMy = (inputWidth / 2) - (textWidth / 2);
$('#from-1').css('text-indent',indentMy);
}
$('#from-1 select').change(function() {
textIndentFunc();
});
textIndentFunc();

Getting an event from a combobox when selecting the same item

I have a few HTML pages. The header contains a combo which allows a navigation by selecting different pages : A, B, C, D.
For the moment, I use:
combo.change(function(){
window.location=path;
});
But I would like to select A even if A is already selected, which make a kind of reset of the page. I tried the events blur or click, but it's not working the way I would like.
I know it's not a great web design, but it's a request by my client.

combo.children('option').click(function(){
window.location=path;
});
fiddle : http://jsfiddle.net/z4H5R/1/

Even though the requirement is very simple, there is no direct solution for this. Could have fixed this if all browsers had supported click and key events for option tag.
So one solution I have to suggest is using dropkick - a jQuery drop down plugin.
http://jamielottering.github.com/DropKick/
This plugin actually hides the select element and adds a proxy drop down element, in which actually options are li elements with a tag. The plugin is coded in such a way that it triggers change event even if the newly selected option is the current one. You can see it in the first example. It also supports key navigation.

I found a nice solution with Jquery :
The real code with my combo with id='route' is :
$("select#routes option").click(function(){
console.log("Click on "+$("#routes").val());
window.location= $("#routes").val();
});
The $("select#routes option").click() means that I click on the DOM tag into the tag.
And it Works !

Auto Update a piece of text depending on position

Right now i am using the awesome flexible-nav
to display the current subtopic i am at in my post.
Additionally to that I was wondering whether I could take this current // string and display it on top of the page in my actual navigation bar. So that the text would change as i scroll and as the flexible-nav changes.
Thanks in Advance

You need to append some code to flexible-nav.js, I suggest you make modification in expanded one and minify it later.
After the line 208 of flexible-nav.js (i.e. closest && closest.node.addClass('current');) add these lines of code.
var doc_title = closest.node.html();
$("title").html(doc_title);
This code changes Title as you keep on moving down the scroll. I wasn't able to figure out call back function in the script (presuming if they have any) but this should work just fine.
You can add any of jQuery selector of your wish instead of $("title") in the code.