I am trying to use angular together with an JSF backend.
I have the problem that custom directives are not processed within JSF when set as attributes for example:
<div my-directive .... > ...(some code)... </div>
JSF or XHTML sais that is not allowed to use attributes withtout being assigned (with an =).
To workaround, I used
<div my-directive ="" ...> ...(some code)... </div>
That would be fine with angularFS but when using the attribute
"my-directive" it will be removed after JSF rendering completely. The problem is my html relies on JSF ajax calls to a DB that I need as the backend relies on JSF 2.2/JSP.
The only thing I can bring it to work is using a tag/an element like
<my-directive> ... </my-directive>
Doing so is somewhat undesireable as I would like to use an attribute.
I learnt that JSF can be tricky if used with angularFS.
Did someone have this issue before?
If I understood your question correctly, JSF2.2 does what you need. It allows either to go with pure Html5 and bind with JSF or go with JSF and use p:passthrough.
#see a few links below
Link 1, Link 2, Link 3
Related
I was doing code review and found custom directive with html tags inside attribute:
<form-field help="Use <b>foo</b> option to blah blah"></form-field>
I find it very unusual, and thought that it will not work in older browsers. But when I and author of this code checked - it turned out that it works in every version of IE we had (10+) and in Chrome/FF without any troubles.
Moreover I checked it in W3C validator (validator.w3.org) and it looks like HTML allows to have unescaped tags inside attributes. This SO answers Can data-* attribute contain HTML tags? confirms that too.
So my question is: Can this make troubles when used with AngularJS? Will this behavior change in Angular 2.0? And finally is this accepted usage of attributes?
I personally would like something like this:
<form-field>
<help>
Use <b>foo</b> option to blah blah
</help>
</form-fild>
Yes, you can do that with ng-bind-html directive. Take a look at this: https://docs.angularjs.org/api/ng/directive/ngBindHtml
There are two ways in which one can make headers using Ionic framework.
<div class="bar bar-header bar-dark">
<h1 class="title">Title</h1>
</div>
And
<header-bar title="'Title'" type="bar-dark">
</header-bar>
Links in Documentation :
For first : http://ionicframework.com/docs/components/
For second : http://ionicframework.com/docs/angularjs/views/header/
What is the difference between them?
The first is native HTML elements using the predefined CSS class names.
The second is using an AngularJS directive. Basically it is a custom element that at runtime will be replaced by a template. See here for the actual AngularJS directive definition. You can see the template that replaces the original element.
Directives like this will play an interesting part of the future of the web. There is a standard on its way in Web Components that will standardize these kind of markup constructs. Besides directives in AngularJS there is another popular way of doing this style of components using Polymer.
I'm new to AngularJS, coming from a PHP background where I do all the template aggregation on the server. With PHP I would grab several templates, mash them together, then send it to the clients browser. AngularJS allows me to insert a template using ng-view. This is great, but it doesn't handle the case where the template that I insert may include tags that are placeholders for other templates. For example, I may have the following as one of my templates:
<div class="some_class">
<div class="another_class">
{content}
</div>
</div>
In PHP I would insert this template, then replace the contents of {content} with another template. In AngularJS I know how to insert the main template (using ng-view), but I'm not sure how to dynamically load my "partial template" into the {content} tag. How is this suppose to be done with AngularJS?
A straightforward approach would be to use the ngInclude directive:
<div class="some_class">
<div class="another_class">
<ng-include src="templatePath"></ng-include>
</div>
</div>
Then, in Controller that is associated with this template you can define the templatePath variable dynamically:
function MyCtrl($scope){
$scope.templatePath = // define this var dynamically here
}
Using ng-view to nest multiple templates is not currently supported natively in Angular.js. There are, however, multiple options to emulate that functionality. See the answers in this SO question for several of those options, including the ui-router suggested by akonsu.
I'm trying to remove jquery from my Angular.js app in order to make it lighter, and put Angular's jqLite instead. But the app makes heavy use of find('#id') and find ('.classname'), which are not supported by jqLite, only 'tag names' (as per documentation)
wondered what do u feel would be the best approach to change it. One approach I thought about is to create custom HTML tags. for example:
change
<span class="btn btn-large" id="add-to-bag">Add to bag</span>
to
<a2b style="display:none;"><span class="btn btn-large" >Add to bag</span></a2b>
and
$element.find('#add-to-bag')
to
$element.find('a2b')
Any thoughts? other ideas?
thanks
Lior
Essentially, and as-noted by #kevin-b:
// find('#id')
angular.element(document.querySelector('#id'))
//find('.classname'), assumes you already have the starting elem to search from
angular.element(elem.querySelector('.classname'))
Note: If you're looking to do this from your controllers you may want to have a look at the "Using Controllers Correctly" section in the developers guide and refactor your presentation logic into appropriate directives (such as <a2b ...>).
angualr uses the lighter version of jquery called as jqlite which means it doesnt have all the features of jQuery. here is a reference in angularjs docs about what you can use from jquery.
Angular Element docs
In your case you need to find a div with ID or class name.
for class name you can use
var elems =$element.find('div') //returns all the div's in the $elements
angular.forEach(elems,function(v,k)){
if(angular.element(v).hasClass('class-name')){
console.log(angular.element(v));
}}
or you can use much simpler way by query selector
angular.element(document.querySelector('#id'))
angular.element(elem.querySelector('.classname'))
it is not as flexible as jQuery but what
If elem.find() is not working for you, check that you are including JQuery script before angular script....
I'm trying to work out why this doesn't work:
<a class="ng-click: loadSomeDatas();">Click here to load some datas</a>
But this does:
<a ng-click="loadSomeDatas()">Click here to load some datas</a>
Why are you using classes?
Well ng-* attributes don't play nice on some of the clients I have to support, thus rather than shimming them I'd rather just use good ol' safe classes.
This looks like a documentation error. According to the source code, it can only be used as an attribute. The link function does not use restrict so the default is "attribute only".
Can you try using "data-ng-click"? Angular will still work with data- appended before it's attribute names and this should be valid syntax in older browsers.
<a data-ng-click="loadSomeDatas()" href="#">Click here to load some datas</a>