I'm new to angularjs and still teaching myself how it all works, so I'm assuming I'm missing something fundamental here.
Basically, I have a slider.html file that has:
{{priceSlider}}
<rzslider
rz-slider-model="priceSlider"
rz-slider-always-show-bar="true"
rz-slider-translate="translate"
rz-slider-on-change=""
rz-slider-hide-limit-labels="true"
rz-slider-floor="25"
rz-slider-ceil="10000">
</rzslider>
Now the {{priceSlider}} returns the value just fine when the slider is moved on that page.
So on my main.html page I have:
{{priceSlider}}
<div ng-include="slider.html"></div>
I know the slider.html file is being pulled in just fine because I can see the content for that partial but my problem is that {{priceSlider}} is not updated on main.html like it is on slider.html. I am not sure what I am missing here.
I want to show content that comes from a directive when the user clicks on a link.
<li>Show popup</li>
Obviously I'm new to angularjs. I know the approach above doesn't make sense really but I was also trying to imagine how this might be done with ng-if but not coming up with anything. Any ideas? Thanks!
Edit 1: The directive that I want to use is:
<ng-pop-up></ng-pop-up>
That's part of ngPopup.
Edit 2: This is now resolved. It turns out that in the case of ngPopup, you put the directive somewhere, then you open the dialog using the open method, so I really didn't take advantage of the solutions given here. Giving Martin credit because his solution solves problem originally stated. Thanks all.
Not exactly sure what you are looking for.
When you say, content from a directive, is this an existing directive, or do you think the content should come from a directive?
In your example where you have show popup, do you mean you would like to have a dialog displayed when you click the link?
Or do you just want something like the following example?
angular.module('app', []);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app=app>
<a href="#" ng-click='showMessage = true'>Click Here</a>
<div ng-show="showMessage">Your Message Here</div>
</div>
Try looking at using ng-if (AngularJS docs). You can use a boolean in your scope to that is toggled by the ng-click.
I am using angularjs from 2 months but never comes to problem like this, so thought of sharing with you people and getting some good suggestion on that. Here I am trying to apply ul/nav-group element dynamic values. Everything is working fine means, if I see developer tools on browser it gets value and everything, but not the +/- sign. I search on google its saying that it loads after DOM creation so it is not showing that. But no buddy tells the solution for that.
Consider my code:
<nav:group ng-repeat="parentChild in parentChildList" title="{{parentChild.filterText}}">
<nav:item data-view="/ui/icons/fa" ng-repeat="childs in parentChild.childList" data-icon="fa fa-lg fa-fw fa-plane" title="{{childs.filterText}}" />
</nav:group>
The value for particular fields are straight forward means its simple list.How the directive can solve this problem.
Appreciate any suggestions . Thanks.
Add an ng-cloak directive on the body tag of your app to prevent loading the element until angular has finished loading.
Your body tag would look like this:
<body ng-cloak>
...
</body>
You could also fix this by using promises in your services, that is definitely the best practice regardless, but ng-cloak is a quick and easy fix.
Hope that helps! If ng-cloak doesnt work for you post snippets of your controller and service and I will help you add promises.
Good Luck!
-Justin
This tutorial demonstrates the use of the directive ngSrc instead of src :
<ul class="phones">
<li ng-repeat="phone in phones" class="thumbnail">
<img ng-src="{{phone.imageUrl}}">
</li>
</ul>
They ask to:
Replace the ng-src directive with a plain old src attribute.
Using tools such as Firebug, or Chrome's Web Inspector, or inspecting the
webserver access logs, confirm that the app is indeed making an
extraneous request to /app/%7B%7Bphone.imageUrl%7D%7D (or
/app/{{phone.imageUrl}}).
I did so and it gave me the correct result:
<li class="thumbnail ng-scope" ng-repeat="phone in phones">
<img src="img/phones/motorola-xoom.0.jpg">
</li>
Is there a reason why?
From Angular docs
The buggy way to write it:
<img src="http://www.gravatar.com/avatar/{{hash}}"/>
The correct way to write it:
<img ng-src="http://www.gravatar.com/avatar/{{hash}}"/>
Why? this is because on load of page, before angular bootstrapping and creation of controllers, browser will try to load image from http://www.gravatar.com/avatar/{{hash}} and it will fail. Then once angular is started, it understands that that {{hash}} has to be replaced with say logo.png, now src attribute changes to http://www.gravatar.com/avatar/logo.png and image correctly loads. Problem is that there are 2 requests going and first one failing.
TO solve this we should use ng-src which is an angular directive and angular will replace ng-src value into src attribute only after angular bootstrapping and controllers are fully loaded, and at that time {{hash}} would have already been replaced with correct scope value.
<img ng-src="{{phone.imageUrl}}">
This gives you expected result, because phone.imageUrl is evaluated and replaced by its value after angular is loaded.
<img src="{{phone.imageUrl}}">
But with this, the browser tries to load an image named {{phone.imageUrl}}, which results in a failed request.
You can check this in the console of your browser.
The src="{{phone.imageUrl}}" is unnecessary and creates an extra request by the browser. The browser will make at least 2 GET requests attempting to load that image:
before the expression is evaluated {{phone.imageUrl}}
after the expression is evaluated img/phones/motorola-xoom.0.jpg
You should always use ng-src directive when dealing with Angular expressions. <img ng-src="{{phone.imageUrl}}"> gives you the expected result of a single request.
On a side note, the same applies to ng-href so you don't get broken links till the first digest cycle kicks in.
Well actually it makes 100% sense because HTML gets processed sequentially and when this HTML page is being processed line by line, by the time it gets to this image, the line and processing the image, our phone.imageUrl is not yet defined yet.
And in fact, Angular JS has not yet processed this chunk of HTML, and hasn't yet looked for these placeholders and substitute these expressions with the values. So what ends up happening is that the browser gets this line and tries to fetch this image at this URL.
And of course this is a bogus URL, if it still has those mustache and curly braces in it, and therefore it gives you a 404, but once of course Angular takes care of this, it substitutes this URL for the proper one, and then we still see the image, but yet the 404 error message remains in our console.
So, how can we take care of this? Well, we can not take care of this using regular HTML tricks. But, we can take care of it using Angular. We need somehow to tell the browser not to try to fetch this URL but at the same time fetch it only when Angular is ready for interpretation of these placeholders.
Well, one way of doing it is to put an Angular attribute on here instead of the standard HTML one. And the Angular attribute is just ng-src. So if we say that now, go back, you'll see that there's no errors anymore because the image only got fetched once Angular got a hold of this HTML and translated all the expressions into their values.
How can I show a spinner or loader gif animation while route is changing from one to another.
I am using ng view like as follows:
<div ng-view class="view-animate">
</div>
I am loading templates from server and also inline. While the HTTP request is pending I need to show the spinner/loader... any snippets?
You can show and hide the loader when location change starts and is completed, respectively.
Here is a plunkr that I have created for this situation. This uses ui-router and is taken from one of the apps that I have created, so it may not be useful as-is, but it will give you an idea on how to approach the problem.
HTML Code inserted below just to keep SO happy...
<ui-view class="view"></ui-view>
<div loader="" class="ng-hide"></div>
I hope it helps.
Abhi.