Can the AngularJS icon adapt to different lists?

I'm currently developing in AngularJS / Jade and I need to implement functionality where an icon changes when a user clicks on something. The code I have right now looks like this:

a(onclick='return false', href='#general', data-toggle='tab') General 
  span.glyphicon(ng-class='isGeneralChanged(selected) ? "glyphicon-ok-circle" : "glyphicon-adjust"')

Following that, there is the following code:

.form-group
   label Has the design been entered?
   toggle-switch(model='selected.general_engineer_made_inspection', on-label='Yes', off-label='No')

The issue I am facing is that changing the icon based on a simple "yes" or "no" is straightforward, but on another tab, there are only names listed. Clicking on any of these names should change the icon in the tab accordingly. I am unsure how to approach solving this. Perhaps utilizing the ng-click event would be useful?

javascriptangularjspugfrontend

Answer №1

Implementing boolean logic to hide, show, or toggle elements is made simple with Angular. Explore directives like ng-show, ng-hide, and ng-switch for this purpose.

A preferred method for using boolean values with classes is demonstrated below:

i.fa.fw(ng-class="{true:'fa-lock', false:'fa-unlock'}[locked]")

The starting value of the boolean is established in the controller:

$scope.locked = true;

Next, a button is included in the view to toggle the boolean value (and consequently switch the class). Pay attention to the ng-click="locked=!locked" attribute.

button(ng-click="locked=!locked" ng-switch="locked")
    span(ng-switch-when="true") Lock
    span(ng-switch-when="false") Unlock

In addition to toggling classes, the boolean can also be used to show or hide specific content:

pre(ng-show="locked") Locked!
pre(ng-show="!locked) Unlocked!

For a comprehensive example including all the mentioned techniques (albeit in HTML instead of Jade), refer to this Plunk: http://plnkr.co/edit/0PDT2cpQGwFKsu8h1hdg?p=preview. The demonstration utilizes FontAwesome icons.

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