I would like to check whether the particular sytle / class has already been applied on given element.
What is the correct jQuery function to check this?
Use .hasClass()
The Syntax is
$(selector).hasClass(classname)
Just use hasClass();
$('#mydiv').hasClass('testClass');
ie...
if($('#mydiv').hasClass('testClass')){ //YOUR CODE HERE if TRUE }
Related
i try to display a dialog for selection the fields of a source.
i like to use the ListSelectionDialog, but i'm not sure what to use for the input parameter.
all the examples in the web uses the
ResourcesPlugin.getWorkspace().getRoot()
as input and yeah, all the projects are displayed.
but i have a list of Fields (IField[]) that i want to show for selection.
the constructor of ListSelectionDialog accept the parameter, but the dialog shows nothing... :(
does anybody has an idea?
thanks a lot!
Sven
I don't think using BaseWorkbenchContentProvider is right. Try ArrayContentProvider.
So something like:
new ListSelectionDialog(shell, fields, new ArrayContentProvider(), labelProvider, msg);
My problem seemed easy at first but i got stuck.
I have some containers (divs) in my page with some custom attributes.
<div class="myclass" myattr1="blah" myattr2="text1-text2-text3-text4-"></div>
myattr1 and myattr2 are defined by me.
All divs are visible on page load.
Now, depending on user selection from a list, i want to show only the divs with myattrib1="blah" and hide the rest.
I tried the following code, with no success at all
$('#mySelectID').change(function()
{
var startName = $(this).val();
$(".myclass").not('[myattrib1!="+startName+"]').toggle();
});
The same approach will be used to filter results by attrib2, but there i will use myattrib2|="+startName+" ( i think this is correct - thats why i have the extra - on the end of myattr2="text1-text2-text3-text4-").
Can anyone advice me on how to properly achieve this kind of filtering?
thank you!
You are close, but as you can see form the syntax highlighting, your are not performing string concatenation. +startName+ will be taken literally. Fix the quotes and your fine:
.not('[myattrib1!="' + startName + '"]')
Note that you should be using data-* attributes instead of custom ones.
I want to add some javacsript to a Zend_Form_Element_Text .
At first I thought a decorator would be the best way to do it, but since it is just a script (the markup doesn't change) then maybe a view helper is better? or a view script?
It seems like they are all for the same purpose (regarding a form element).
The javascript I want to add is not an event (e.g. change, click, etc.). I can add it easily with headScript() but I want to make it re-usable , that's why I thought about a decorator/view helper. I'm just not clear about the difference between them.
What is the best practice in this case? advantages?
UPDATE: Seems like the best practice is to use view helpers from view scripts , so decorators would be a better fit?
Thanks.
You could create your own decorator by extending Zend_From_Decorator_Abstract and generate your snippet in it's render() method :
class My_Decorator_FieldInitializer extends Zend_Form_Decorator_Abstract {
public function render($content){
$separator = $this->getSeparator();
$element = $this->getElement();
$output = '<script>'.
//you write your js snippet here, using
//the data you have in $element if you need
.'</script>';
return $content . $separator . $output;
}
}
If you need more details, ask for it in a comment, i'll edit this answer. And I didn't test this code.
Use setAttrib function.
eg:-
$element = new Zend_Form_Element_Text('test');
$element->setAttrib('onclick', 'alert("Test")');
I'm not actually seeing where this needs to be a decorator or a view-helper or a view-script.
If I wanted to attach some client-side behavior to a form element, I'd probably set an attribute with $elt->setAttrib('class', 'someClass') or $elt->setAttrib('id', 'someId'), some hook onto which my script can attach. Then I'd add listeners/handlers to those targeted elements.
For example, for a click handler using jQuery , it would be something like:
(function($){
$(document).ready(function(){
$('.someClass').click(function(e){
// handle the event here
});
});
})(jQuery);
The benefit is that it is unobtrusive, so the markup remains clean. Hopefully, the javascript is an enhancement- not a critical part of the functionality - so it degrades gracefully.
Perhaps you mean that this javascript segment itself needs to be reusable across different element identifiers - someClass, in this example. In this case, you could simply write a view-helper that accepts the CSS class name as the parameter.
"the markup doesn't change", Yap,
but I like to add some javascript function throw ZendForm Element:
$text_f = new Zend_Form_Element_Text("text_id");
$text_f->setAttrib('OnChange', 'someFunction($(this));');
The best way is if you are working with a team, where all of you should use same code standard. For me and my team this is the code above.
I am extremely new to Zend Framework, In registration form, i need label text in two line. For Example:- In the case First name, I need to display like below:
First
Name:
How can i implement this? Please anyone help me!!!
By default, input fields labels are being escaped by Zend_View_Helper_FormLabel. However, you can easy switch this off:
$yourTextInputElement->getDecorator('label')->setOption('escape', false);
This way you can use labels as e.g. $yourTextInputElement->setLabel('First <br/> name');.
What about this nifty solution ?
http://jsfiddle.net/J67GD/
The best way is probably to use Description decorator, or subclass one of other standard ZF decorators.
Yanick's CSS solution might be a good choice too, depending what are you trying to do.
$(this+"p").slideDown("slow");
$(this)+$("p").slideDown("slow");
$("this+p").slideDown("slow");
does not work.
Yeah, your syntax is bad. You should use the jQuery Sibling function:
$(this).siblings().find("p").slideDown("slow");
The jQuery API site is awesome for looking stuff like this up, I rely on it nearly daily. I'd keep an eye on it.
Next.
$(this).next("p").slideDown("slow")
Make sure that the "p" element is directly adjacent, though. Otherwise you'll want to use nextAll.
jQuery have not seemed to apply this? Possibly the syntax we are trying to use is incorrect.
next() can only select elements with an ID or Class - Not just a naked dom element as expected.
Instead use. > means select first level decends only.
$('body > div').hide();
But this gives the exact same result
$('body').children('div').hide();
But,
Next
$('body + div').hide();
and
Previous
$('body ~ div').hide();
Do not seem to work as expected? But jQuery use it as example for CSS selection...
Possibly there is a complex syntax to achieve this but I could not figure it out...