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How to add a list of existing tags to the description of a tags panel in Gutenberg WordPress

The puzzle
I'm working on a custom WordPress theme. I've created custom post types and custom taxonomies, some of which are tag style (rather than category style). All is working as it should, and the appropriate taxonomies show up where they should in their matching content types ('show_in_rest' => true).
BUT I would like to add a list of the currently existing tags to the description in the tags block.
Right now, the instructions for tags say: "Separate with commas or the Enter key." I'd like to append something along the lines of "Existing Tags: " and then the list of tags. Ideally, this would be dynamically generated, so that as clients add new tags it would update the list. For the specific site I'm working on though, even static text would be better than nothing.
What I've got so far
I found someone asking a somewhat similar question and tried using the code from one of the responses. I'm taking a modular approach, so I've put the enqueue_script in a separate php file which I'm require_once-ing...
In functions.php, I've got:
...
require_once("lib/gutenberg/tag_options.php");
...
In tag_options.php I've got:
<?php
/**
* Add a list of available tags to tag panels in the gutenberg editor.
*/
function radicati_tag_options() {
wp_enqueue_script(
'gutenberg-tag-options',
get_stylesheet_directory_uri() . '/lib/gutenberg/tag_options.js',
['wp-blocks', 'jquery'],
1.0,
false
);
}
add_action('enqueue_block_editor_assets', 'radicati_tag_options');
And in tag_options.js I've got:
window.onload = function() {
// This is code I found on the internet,
// aimed at creating a custom panel...
var el = wp.element.createElement;
function customizeProductTypeSelector(OriginalComponent) {
console.log(OriginalComponent);
return function(props) {
console.log(props.slug);
// The slug of one of my custom tag-style taxonomies is "topic"
// That's what I'm seeing in console.log, so I feel like I might
// be on the right track!
// Once I get this figured out, if need be I can write custom code
// for each of my custom tag-style taxonomies :)
if (props.slug === "topic") {
return el("div", {}, "Product Type Selector");
HELP! THIS IS WHERE IT ALL FALLS APART!
I CAN *REPLACE* THE CONTENTS OF THE TAG BLOCK
(AND THUS RENDER IT NOT A TAGS BLOCK ANYMORE)
BUT I JUST WANT TO ADD A PARAGRAPH CONTAINING
SOME TEXT, INCLUDING A LIST OF EXISTING TAGS
TO THE OTHERWISE PERFECTLY FUNCTIONAL BLOCK!
} else {
return el(OriginalComponent, props);
}
};
}
wp.hooks.addFilter(
"editor.PostTaxonomyType",
"my-custom-plugin",
customizeProductTypeSelector
);
};
TIA
Unfortunately, the documentation for messing with Gutenberg stuff is still pretty patchy, so this is as far as I've been able to get. I'll admit that my React is equally sketchy, so it's a pitiful combination :laughing: If any of you have any clues to throw my way, I would really appreciate your help!

How to capture clicked element using $(this) inside of a vue(js) instance

I am reworking an old app of mine and I am having issues with dom manipulation and basic selections within a vue instance.
Essentially I have information in a database that I load in via ajax.
Each record in the db has 2 sections. The header tab(title, time, date etc) and the body of the record(notes, ideas, etc)
When loaded, the header shows normally to the user but if they want to see what that note contains, they have to click on the header for the bottom to appear.
consider the following html:
<vuejs for loop>
<div v-bind:id='item._id' class="tabW" v-on:click="blueTabClick" >
<div class="blueTabMainColor">
<!-- header stuff here -->
</div>
<div class="notesOpenedW">
<!-- interior informaton here, HIDDEN BY CSS -->
</div>
</div>
<vuejs for loop ender>
This HTML is essentially inside a Vue for/loop directive, and generates however many "tabs(tabW)" as needed based on how much info I have in the DB
All I want the user to do is to be able to click whichever tab(tabW) they want information on, and for the notes show underneath(notesOpenedW).
I stripped my entire app and js and tried to keep it as simple a test as possible and even with the below, I still can't get anything.
here is my JS(JQ):
$(document).ready(function(evt){
$(".blueTabMainColor").click(function(){
$(this).next(".notesOpenedW").fadeToggle();
});
});
With this basic code, when I put it inside a Vue instance, via:
methods: {
blueTabClick: function (evt) {
evt.preventDefault();
$(".blueTabMainColor").click(function(){
//alert("you clicked me");
$(this).next(".notesOpenedW").fadeToggle();
});
}
}
It doesn't work, but if I take it out of the Vue instance, it works just fine.
how can I get this to work? or am I going about it the wrong way?

Vue will not cohabit happily with JQuery. You're $(this) will not work because you're not even in the document at that point, you're in pure js, virtual DOM, another universe. Then, if it did, the event listener you call may not exist. You will need to fundamentally transition this code to Vue if you want it to work, I fear.

You can achieve this by setting a ref on "notesOpenedW".
https://v2.vuejs.org/v2/api/#ref
I would strongly recommend to wrap this behaviour in a dedicated component
That would have the following content :
<div class="tabW" v-on:click="blueTabClick" >
<div class="blueTabMainColor">
<!-- header stuff here -->
</div>
<div class="notesOpenedW" ref="notesToggleDiv">
<!-- interior informaton here, HIDDEN BY CSS -->
</div>
</div>
And the method :
methods: {
blueTabClick: function () {
$(this.$refs.notesToggleDiv).fadeToggle();
}
}
Be aware that when using Vue, manipulating directly the dom is usually a bad idea.
As i showed you, it is possible to use jQuery with Vue if you absolutely need it (or cannot afford to rework more deeply your application).
Edit : Just found this article that i think would help you a lot :
https://www.smashingmagazine.com/2018/02/jquery-vue-javascript/?utm_campaign=Revue%20newsletter&utm_medium=Newsletter&utm_source=Vue.js%20Developers

Updating a simple jQuery / CSS code

I was hoping someone could help me out with this simple question: I’ve just started to learn jQuery and found a code to show hidden text after selecting an item.
I’d like to update it so that:
a.) The selected item is bold
b.) I can add placeholder text instead of starting off with a blank hidden text field
I foolishly assumed I could solve a.) by using the :active property in css, but that only works as long as the link is clicked on. (As soon as you release the mouse button it’s gone.) Just like b.), this is probably only possible by using jQuery as well? If so, would be really great if you could show me how to solve it. :)
The codes: http://jsfiddle.net/KUtY5/1/
JS
$(document).ready(function(){
$("#nav a").click(function(){
var id = $(this).attr('id');
id = id.split('_');
$("#menu_container div").hide();
$("#menu_container #menu_"+id[1]).show();
});
});
CSS
#menu_container {
width: 650px;
height: auto;
padding-left: 30px;
}
#menu_container div {
display:none;
}
HTML
<div id='nav'>
<a id="show_apps">Appetizers</a> | <a id="show_soups">Soups and Salads</a> | <a id="show_entrees">Entrees</a>
</div>
<div id="menu_container">
<div id="menu_apps">
Content of the App Section Here
</div>
<div id="menu_soups">
Content of the Soups Section Here
</div>
<div id="menu_entrees">
Content of the Entrees Section Here
</div>
</div>

Updated fiddle
You can realize a) using a custom class bold for example and the following code :
CSS
.bold{ font-weight: bold;}
JS
$(this).addClass('bold').siblings('a').removeClass('bold');
For b) I can't find any textfield in your code.
Hope this helps.

I have added some extra lines to your code and you can check it from here http://jsfiddle.net/KUtY5/483/.
You bold like this
$("#nav a").css("font-weight", 400); // First you make them thin
$(this).css("font-weight", 800); // Than you make them bold
You put placeholder like this
<div id="placeholder">
Placeholder
</div>
$("#placeholder").hide();
On the other hand I recommend you not to hide menu container. Rather hide the elements inside the menu_container. So you can put a plcaeholder in menu container and you can hide it.

To figure this out 2 questions must be asked / solved
how do you normally make text bold on a page... css right?
where do you want those styles to be defined? There are 2 places:
a. You can define it inside the javascript.
b. You can define it inside the projects css through normal methods (inline, external, embedded).
What's the difference? If you define it inside the javascript the code is self-contained. What i mean by that is you can copy/paste the JS code from one project to the next and you don't need to worry about copying related styles from the stylesheets or other sources because it's all in the JQuery that you've written.
In contrast if you define it outside the javascript in the regular places the code may not be self-contained however some find it easier to manage in the scope of that particular project because all your css is contained in one place (external stylesheet typically).
If you want to take option a, see the .css() method
If you want to take option b, see the style manipulation (toggle class in particular)
Note the examples in the above references should get you 90% of the way to understanding it.
Some final words. Learn Jquery, but i advise you to stay away from it as much as possible because it implements DOM thrashing instead of DOM caching (sizzle engine).
This video series will briefly go into why Jquery sucks for performance in the first video and the rest of the series is about how to create modular vanilla JS.
JQuery goes back and searches the DOM every time you need to make a change that is what
$.(*element*) is doing instead of just caching it.
The more nodes you have in the DOM the more processing power is used searching (because it has to go through the entire tree).
Then on top of that the more elements you have to make changes to (say if you use a css class selector) you have to add even more processing on top of that.
All this is fine if you're on a desktop, but what about a mobile platform? Where would you get all this processing power from?... It doesn't exist.

jQuery + Modernizer - Do not display a div if javascript is disabled? (See Code)

I am trying to enhance the menu of my website a bit by making use of the jQuery accordion plugin:
http://jqueryui.com/accordion/
This works perfectly fine and i think that it is a great plugin to make use of... However, i have noticed that it requires a specific layout in order to achieve these results:
<div id="accordion">
<h3>Section 1</h3>
<div>
<p>
ETC...
</p>
</div>
NB: repeated for every result
</div>
Now this is a bit of a problem in that when javascript is disabled, the entire output of this menu is displayed (all categories and containing information).
This is simply too much information to be output all at once and this is the reason that it has been broken up with PHP in the first place. In essence it would look like this:
// No category selected
* Fruits
* Vegetables
// Category selected
o Fruits
- Apples
- Oranges
* Vegetables
// Javascript Disabled
o Fruits
- Apples
- Oranges
* Vegetables
- Potatoes
- Onions
So what i would like to do, is provide an alternate means of navigation for users that have disabled javascript (the old menu that is fully functional and works regardless).
I currently make use of a few options in modernizer:
http://modernizr.com/
To increase browser support on some CSS properties i have used. I am aware that it can be used to detect if javascript is enabled by appending a class "js" to the body tag.
So with that, i decided to try and wrap the old menu within a containing div, and the new menu within a containing div. My idea is that i can then these divs with display: none;.
Before i carry on, i am really just guessing here so if i am going about this the wrong way... I would appreciate it if someone could point me in the right direction. With that out of the way, i found an article on stackoverflow that relates to this:
PHP & <noscript> combination to detect enabled JavaScript in browser
And with my very limited knowledge of jQuery have adapted it slightly to fit what i hope to achieve:
<script type="text/javascript">
$(document).ready(function(){ // Use jQuery!
// Remove the no-js and add the js (because JS is enabled (were using it!!)
$("body").removeClass("no-js").addClass("js");
})
// Put it in a var so you dont traverse the DOM unnecessarily.
var useJS = $("body").hasClass("js");
if(useJS){ // true or false if <body> has class JS.
// JS Enabled
$("#oldMenu").css("display", "none");
$("#newMenu").css("display", "inline");
} else {
// JS NOT enabled
$("#newMenu").css("display", "none");
$("#oldMenu").css("display", "inline");
}
</script>
Now the problem I am facing is that i cannot seem to get this script to register or make any visible difference. When i look at the body tag in the source there is no class on the body tag. The menu is not triggering as i thought it would and i am now after quite some time... Very confused.
If anyone could offer me some assistance, advice, information or indication that would help me to solve this current issue, i would really, REALLY appreciate that!
Thank you for taking the time to read through my line story! :)
EDIT:
#RomainPaulus suggested this and it works:
<script type="text/javascript">
$(document).ready(function(){ // Use jQuery!
// Remove the no-js and add the js (because JS is enabled (were using it!!)
$("body").removeClass("no-js").addClass("js");
// Put it in a var so you dont traverse the DOM unnecessarily.
var useJS = $("body").hasClass("js");
if(useJS){ // true or false if <body> has class JS.
// JS Enabled
$("#oldMenu").css("display", "none");
$("#newMenu").css("display", "inline");
} else {
// JS NOT enabled
$("#newMenu").css("display", "none");
$("#oldMenu").css("display", "inline");
}
})
</script>

Kenneth's response explains a lot, but I have noticed something else. Your code
var useJS = $("body").hasClass("js");
is executed before
$(document).ready(function(){ // Use jQuery!
// Remove the no-js and add the js (because JS is enabled (were using it!!)
$("body").removeClass("no-js").addClass("js");
})
You should put everything inside the $(document).ready(function(){ ... })
So I guess that explains why your code doesn't work.

The problem you face here is that, obviously when Javascript is not enabled, you're Javascript is not executing.
What you need to is hide the DIV by default with CSS. Then, when your page loads, show it through JS.
Javascript disabled => Div stays hidden, because no code is executed
Javascript enabled => div is hidden on load, but the script shows it
Also, if Javascript is disabled, Modernizr won't help, since it's a JavaScript library.

Injecting javascript and HTML using AJAX

First of all I would like to say that while this is the first time i post here these boards have helped me much.
With that said, I have got a strange issue regarding AJAX and scripts.
You see, in my web application i used custome JS context menus. Now each of them menus is implemented with specific features depending on the object and if the object exists.
E.x : if we got an upper menu place holder but no upper menu the context menu will have one option which is "add menu".
But say we already have the upper menu the context menu will have different options such as "edit menu" etc...
so far so good, however, say we have an upper menu place holder and no menu and then we added the menu (still no refresh on the page) i need to generate a new context menu and inject it right? so i do just that along with the new menu i just built.
all that code goes into the SAME div where the old context menu script and upper menu place holder were so basicaly they are overwriten.
Now the menu itself is in HTML so it overrides the current code the JS however acts wierd and will show now 2 context menus the old one and the new one even though i overwrite it's code.
I need to some how get rid of the old context menu script without refreshing the page.
Any ideas?
P.S
all the JS are dynamicaly generated if that makes any difference (i dont think it does.)

Well after some head breaking i figured it out..
(the problem not the solution yet) this is the ajax function right?
$.ajax({
type: "GET",
url: "../../../Tier1/EditZone/Generate.aspx?Item=contentholder&Script=true",
dataType: "html",
success: function (data) {
$('#CPH_Body_1_content_holder').html(data);
}
});
now they function uses a page with an event handler, that event handler reutnrs the data as followed response.write(answer) it just hit me that when you use response.write it sends the code after it's been compiled and ran in our case at page Generate.aspx.
so the script will run but not in the page i intended it to run and because of that i cannot overwrite it... how silly of me.
what i think ill do it return the data as an actualy string and then and only then inject the code into the container div.
ill let you folks know if that works out.
cheers and thanks for the advice these forums rock.

No matter what anyone says, do not use EVAL. It's evil and will give you memory issues if used more than a few times on a page.
See my soluition here: trying to call js code that is passed back from ajax call
Basically, create a div with the ID of "codeHolder" and voila. You'll basically want to pass your HTML and JS back to the AJAX receiver (separated by a separator), parse it on the JS side, display the HTML and put the JS Code in your javascriptCode variable.
//Somehow, get your HTML Code and JS Code into strings
var javascriptCode="function test(){.....}";
var htmlCode="<html>....</html>";
//HTML /////////////////////////////////////////
//Locate our HTML holder Div
var wndw=document.getElementById("display");
//Update visible HTML
wndw.innerHTML = htmlCode;
//Javascript ///////////////////////////////////
//Create a JSON Object to hold the new JS Code
var JSONCode=document.createElement("script");
JSONCode.setAttribute("type","text/javascript");
//Feed the JS Code string to the JSON Object
JSONCode.text=javascriptCode;
//Locate our code holder Div
var cell=document.getElementById("codeHolder");
//Remove all previous JS Code
if ( cell.hasChildNodes() )
while ( cell.childNodes.length >= 1 )
cell.removeChild( cell.firstChild );
//Add our new JS Code
cell.appendChild(JSONCode);
//Test Call///////////////////////////////////////
test();
This code will replace all previous JS code you might have put there with the new JS Code String.

Thanks for the replies.
Dutchie - that's exactly what I did. now the thing is the HTML is properly overwritten (I didn't use append I overwrote the entire div) and yes the javascript just keeps on caching...
I tried to disable browser cache and still the problem persists i get multiple context menu per item the more I ran the ajax function...
Jan,
My AJAX function builds a div tag and script tags and places them into another container div tag in the page.
What's suppose to happen is that every time the AJAX runs the code inside the container div is overwritten and you get an updated version.
the div inside the container div is overwritten yet the script tags somehow are cached into the memory and now each time the out jQuery function calls the context menu i get multiple menus...
I don't think code is needed but I will post it tomorrow.
Any ideas?