I want to add a custom validation handler to Joomla's default client-side validation class, e.g.
window.addEvent('domready', function(){
document.formvalidator.setHandler('birth', function(value) {
regex=/^\d{4}-\d{2}-\d{2}$/;
return regex.test(value);
});
});
I want this in a JS file for the component. The problem I am having is that the custom handler must be defined after the validation class, so it has to appear after:
<script src="/media/system/js/validate.js" type="text/javascript"></script>
I can do this by adding in the com_mycomponent/site/mycomponent.php
$document->addScript(...)
But the declaration will appear before validate.js.
Thanks
Scripts added with document object will appear where your template include is.
$document->addScript(...)
Will appear here
<jdoc:include type="head" />
So the include should be top of page in the head
If you are including the window addEvent via addScript you will need to do it in the correct order also.
formvalidator runs native events first, so if you want to do something say before the require function runs, you're out of luck.
Related
I'm trying to use dojo Tooltips on a series of SVG elements that are tool buttons in my header. I'm using the method in the docs of attaching tooltips to multiple nodes like this:
new Tooltip({
connectId: query('.header'),
selector: 'svg',
position: ['below'],
getContent: function (e) {
return e.getAttribute('data-tooltiptext');
}
});
And that works, but if I use a selector of '.tool' (every SVG has a class of tool on it) my getContent function never gets called. 'svg.tool' doesn't work as a selector either. The docs an several examples around the net claim class selectors will work, but I've only been able to get element selectors to work.
I'm requiring 'dojo/query' and I've tried using 'dojo/query!css3' but that doesn't seem to make a difference. I don't know if it makes a difference, but I'm using dojo included with ESRI's ArcGIS JS API library, which reports a dojo version of 1.14.2.
I've experienced the same issue when using the selector attribute while creating a Menu. Within an SVG element, element selectors (even comma-concatenated ones) work, but class selectors do not. Outside of the SVG element, they worked just fine. You can play around with this by using dojo.query in your browser's console to see which elements get selected.
I was able to solve the issue by changing the selectorEngine in my dojo config. Using any of css3, css2.1, and css2 worked, so I think the issue may be in the acme engine. If you don't already have a dojo config, you can add it via a script tag:
<script>
var dojoConfig = {
selectorEngine: 'css3',
};
</script>
I would like to use Dropdown component and provide two options OK and reset buttons (as provided in Table example),
after some research I didn't find any mention about this functionality in Dropdown or Menu component api,
Does anyone implemented such functionality outside of Table components, any inputs how this is work?
The code implementing the OK and RESET options of that component are implemented specifically for the table dropdown here (https://github.com/ant-design/ant-design/blob/master/components/table/filterDropdown.tsx#L196-L222).
You can either implement it similarly (i.e. wrap the Menu with a div and handle the events yourself) or you could create an ant design github ticket and ask whether a) this should be part of the design specification and b) whether there should be a reusuable way to consume this
According to this issue in github such functionality can be reached via Popover with Menu + Buttons
You will want to bind to the change event via javascript/jQuery.
On $(document.ready() you can call a function that will do this binding.
Then you just check the value of the dropdown via a jQuery selector.
<script>
$(document).ready(function() {
$("dropdownSelector").change(function() {
var val = $(this).value();
//logic to do things
});
});
</script>
You can check out different ways to use jQuery selectors here: https://api.jquery.com/category/selectors/
I have created a Backbone.js/Require.js application that dynamically loads HTML templates to use as "pages" in the application. This means my main HTML page looks like so.
<head>
// Necessary CSS and Javascripts here
</head>
<body>
<div id="container"></div>
</body>
And then I used underscore templates to render new elements dynamically to the DOM. However, a new feature requires the use of a Raphael.js chart. I created a new element <div id='canvas'></div> and call Raphael('canvas') but since the canvas element wasn't there on DOM ready, Raphael can't see the newly created element.
I have attempted to use a jQuery selector in place of the id reference like so Raphael($('#canvas')) but this attaches the canvas to the body element and not my container element.
Any suggestions on how to bind a Raphael canvas to a dynamically created element?
Raphael($('#canvas').first(), '100%', '100%')
Though I had errors else where, the main issue that caused Raphael not to fire was forgetting that a jQuery selector passes an array of Elements and Raphael's constructor want's a single element. Raphael was attaching itself to the body because it was the top level parent of the selector's result.
Mosselman was also correct in pointing out that you can build a view in Backbone entirely in memory and then append it to the DOM.
A way to overcome this issue is by creating an empty element in the view and binding everything onto that. I have never worked with Raphael, but I think this could work:
var someView = Backbone.View.extend({
el: document.createElement('div'), // This creates a DOM element '<div></div>'
initialize: function(){
Raphael(this.el); // Attach Raphael, you could also go with jQuery
},
render: function(){
jQuery('#container').append(this.el); // Add to DOM somehow
}
})
seems like a good approach is to either throw an event after the template has been added to the DOM and have your call to Raphael('canvas') listen for that event or use a callback to trigger Raphael('canvas'). in both cases you are ensuring that you don't call Raphael('canvas') before the target element is in place.
very roughly, something like this:
//from your raphael module / code
$(document).on('canvasAdded', function(){
var paper = Raphael('canvas');
//stuff!
});
//after you are sure your template has rendered
$(document).trigger('canvasAdded');
you probably want to make some kind of .init() method and call that from the event handler (vs. what I show above) but hopefully this points you in the right direction.
I know that this is too old question, but anyway it can help to someone. Its important to be sure that your view is placed on page, so use something like onShow functionality, or render. But anyway Raphael will not show right because if your send to Raphael this.$el or anything similar it will not accept it like you expect. What You need to do is something like this.$el.first() or this.$el[0].
I'm having some weird issue with extjs. I have a form and a grid, each works great separately but when I put the grid inside the form, everything starts to fall to pieces.
My point by doig so would be to be able to submit ids from rows of the grid and at the same time, stuff from the form.
To do so, I put the standardSubmit to false and added a javascript method to the onSubmit attriobute of my form.
However, when I submit the form this way, I get a weird error :
Uncaught SynthaxError: Unexpected token <
But the form values are submitted and visible in the request's header. Of course, when I put the standard submit to true, the error goes away but the values from the grid are not submitted anymore...
This SyntaxError usually relates to a loaded JavaScript resource. These are common mistakes that can trigger this error message:
<script type="text/javascript">
<script type="text/javascript">
[...]
</script>
</script>
<script type="text/javascript">
var s = I forgot the opening quotes so this <html> tag will break the script';
</script>
<script type="text/javascript"
var s = 'Here we forgot to close the opening <script> tag! Boom!';
</script>
It could also be triggered by the server setting the content type to 'application/javascript' for a non-JS resource (which then again includes this tags).
I also remember reading that this happened to someone using a minified version of a JavaScript library, but no details on the exact reason were given (other than that the problem was solved by using the non-minified version.
You can also wrap your JS resources in a CDATA tag for debugging purposes which should get rid of the SyntaxError and probably bring up a standard JS error message for the invalid script.
<script><![CDATA[
/* Code here */
]]></script>
Once you identify the resource that triggers the exception it should be possible to spot the problem by doing a through study of the source with your CSI sunglasses on.
Note: my assumption is that it can*not* be triggered by data that is sent to the server, but only data that is returned from the server. This is because the error refers to the parsing process on the client. But I'm not 100% sure on this one.
If this doesn't help you should really post the involved code and/or explain what you do exactly when you 'added a javascript method to the onSubmit attribute of [your] form'.
So today I just came across the 'live()' function that binds any future and past elements to the whatever event you choose, such as 'onclick'.
Right now I'm having to set up buttons like the following each time I load a new button via ajax ...
$('a.btn.plus').button({icons:{primary:'ui-icon-plusthick'}});
$('a.btn.pencil').button({icons:{primary:'ui-icon ui-icon-pencil'}});
$('a.btn.bigx').button({icons:{primary:'ui-icon ui-icon-closethick'}});
So, instead of calling these lines each time I use ajax to add a new button, is there a similar way to tell JQuery to setup my buttons ANYTIME I add new ones?
Thanks for any help!
Mmh not really. But there is the function .ajaxSuccess() which is triggered whenever an Ajax call is successful. So you could do:
$('body').ajaxSuccess(function() {
$('a.btn.plus').button({icons:{primary:'ui-icon-plusthick'}});
$('a.btn.pencil').button({icons:{primary:'ui-icon ui-icon-pencil'}});
$('a.btn.bigx').button({icons:{primary:'ui-icon ui-icon-closethick'}});
});
But this will run on any links with the classes, not only on the new ones. But if you append them on a time (i.e. not multiple a.btn.plus at once) you might be able to use the :last selector (a.btn.plus:last).
You can also create a function and just that from your callback functions:
function links() {
$('a.btn.plus').button({icons:{primary:'ui-icon-plusthick'}});
$('a.btn.pencil').button({icons:{primary:'ui-icon ui-icon-pencil'}});
$('a.btn.bigx').button({icons:{primary:'ui-icon ui-icon-closethick'}});
}
and in the Ajax call:
$.ajax({
//...
success: function(msg){
links();
}
});
This way you can pass the parent element to the function in order to find the link only inside this element (so the code would only work on the new links).
A last option would be generate a custom event but in the end this would be similar to just doing a function call in your case so you gain not much.
You can use delegate in your success function too
$("body").delegate("a.btn", "hover", function(){
$(this).toggleClass("hover");
});
There is a Jquery Plugin called livequery which covers your requirements.
I like to think of this plugin as Jquery .live() but without the need for an event ('click') etc.
You can find more info here//
Jquery - Live Query Plugin