show a div with ng if ionic - angularjs

<ion-view cache-view="false">
<div class="navbar-fixed-top navbar-header bar bar-header " ng-if="showHeader">
<div class="container row">
<div>
<a class="navbar-brand" href="#">
<h1>ROCK 'N' GRILL<br>
<span>Pitampura New Delhi...</span></h1>
</a>
</div>
{{showSubHeader}}
<div ng-if="showSubHeader===true" class="topPull" draggable >
<button ng-if="showSubHeader" class="button-icon"><img src="img/topImg.jpg"></button>
</div>
</div>
</div>
</ion-view>
The value of showSubHeader changes to false but yet I see the div in my view. How do I update view to not show the div when the value is false?
Edit:
This is veiw attached to an abstract state so I believe , the abstract state is not updated when views are switched. How do I reload header when views change or switch?

Instead of using ng-if you could use ng-show. So when showSubHeader is false, your div won't be shown. Have a look here: https://docs.angularjs.org/api/ng/directive/ngShow

Related

Ionic collection-repeat affecting active classes

I have ng-class inside of my ion-list if the user clicks an item it adds the class selected. The problem when using collection-repeat is its managing the DOM and changing the selected class as I scroll.
<ion-list>
<ion-item collection-repeat="contact in contacts | filter:filters" class="contact" ng-click="pickContact($index, $element, this.contact)" ng-model="contactModel" ng-class="{'selected': contact.selectedContact}" toggle-contacts="selected" collection-item-height="150" collection-item-width="'33.3%'">
<div ng-if="contact.photo.type == 'img'" class="contact-img">
<img ng-src="{{contact.photo.value}}.png" alt="">
</div>
<div ng-if="contact.photo.type == 'text'" class="contact-text-placeholder">
{{contact.photo.value}}
</div>
<div class="contact-name">
{{contact.name}}
</div>
</ion-item>
</ion-list>
How can I avoid this from happening? I want the class to stick.
The solution was to add the class into the data itself.

toggle extra detail for a record inside an ngRepeat

I'm working on a project where the client has supplied a pile of html where I need to plugin the data from our database and have hit a problem that I'm finding difficult to solve....
So first problem is with routing
<div ng-repeat="class in vm.classes">
<div class="class-overview">
<a href="#">
<span class="class-title">{{class.description}}</span>
... more stuff here
</a>
</div>
<div class="class-information collapse">
<div class="full-width">
{{class.longDescription}}
</div>
</div>
</div>
he has supplied some javascript to handle the click on class-overview
$('.class-overview a').on('click',function(e) {
e.preventDefault();
});
$('.class-overview').on('click',function() {
$('.class-overview.active').removeClass('active').next('.class-information').collapse('hide');
$(this).addClass('active').next('.class-information').collapse('show');//.css('top',offset).collapse('show');
});
and i have a line like this in my state provider
// default route
$urlrouterProvider.otherwise("/")
So the problem is that the ui-router handles the click and sends me back to the home page.
The ideal solution is to leave as much of his markup intact, so can anyone tell me how I stop ui-router handling the click?
or failing that, how I might use ng-click and ng-show to get the same effect, i.e. hiding and showing the class-information div...
If I understand well your question, you want to display the .class-information div when you click on the .class-overview element.
That can be done by using a variable in a ng-show like this:
<div ng-repeat="class in vm.classes">
<div class="class-overview">
<a href="#" ng-click="display = !display">
<span class="class-title">{{class.description}}</span>
... more stuff here
</a>
</div>
<div class="class-information" ng-show="display">
<div class="full-width">
{{class.longDescription}}
</div>
</div>
</div>
The display variable will be falsy when you land on the page, therefore the ng-click will be executed, this variable will be set to true.
I see that you are using a collapse class to hide the content if it is collapsed. Then you could use angular ng-class to put the collapse class when the display variable is false. Your div.class-information would look like this:
<div class="class-information" ng-class="{collapse: !display}">
<div class="full-width">
{{class.longDescription}}
</div>
</div>

How to show div when link is clicked with ng-show angular js

first off, i have links from a json and display it using ng-repeat and i want to know if its best practise to load all object property (in a div) corresponding to its link and hide it so when you click a link, the corresponding div shows.
I'm thinking about the worst case scenario, were we have about a 100 links and the load all corresponding divs and hide it o_O
So this is my html:
<a href="">
<div ng-model="showModal" class="contentItem" ng-repeat='meal in recipes | filter:searchText' ng-style="{'background-image':'url({{ meal.url }})'}">
<span id="contentItemHeader">{{ meal.title }}</span>
<span id="contentItemLevel">{{ meal.level }}</span>
</div>
</a>
This is the div (modal) i want to display in full screen:
<div ng-show="showModal" ng-repeat='meal in recipes'>
<span>{{ meal.url }}</span>
<span>{{ meal.method }}</span>
<span>{{ meal.ingredients }}</span>
</div>
Use case is:
-all links loads
-click a link
-corresponding div shows
Thats it ! just like when you see a list of videos on youtube, you click one, then the video page opens but as a modal (same page)
Thanks alot,
regards
You can utilize $modal service from the UI Bootstrap, define template for meal's modal and attach ng-click handler on each individual meal in ng-repeat. In click handle you can open modal and pass meal instance to modal's scope:
View:
<div ng-repeat='meal in recipes' ng-click='selectMeal(meal)'>
{{meal.title}}
</div>
Conrtoller:
$scope.selectMeal = function(meal) {
var dialogScope = $scope.$new(true);
dialogScope.meal = meal;
var modalInstannce = $modal.open({
templateUrl: 'meal-dialog.html',
scope: dialogScope
});
};
Modal template:
<div class="modal-header">
<h3 class="modal-title">{{ meal.title }}</h3>
</div>
<div class="modal-body">
<div>{{ meal.url }}</div>
<div>{{ meal.method }}</div>
<hr />
<h4>Ingridients</h4>
<ul >
<li ng-repeat='ingridient in meal.ingridients' >{{ingridient.name}} : {{ingridient.amount}}</li>
</ul>
</div>
<div class="modal-footer">
<button class="btn btn-primary" ng-click="$close()">Close</button>
</div>
Plunker here
To show div in question, when meal selected, introduce new selectedMeal property in $scope and use it in modal template, remove ng-repeat from modal div and set selectedMeal and showModal in selectMeal function:
$scope.selectMeal = function(meal) {
$scope.selectedMeal = meal;
$scope.showModal = true;
};
<div ng-show="showModal" >
<span>{{ selectedMeal.url }}</span>
<span>{{ selectedMeal.method }}</span>
<span>{{ selectedMeal.ingredients }}</span>
</div>
if your worried about performance of having all the divs exist, but hidden, consider using ng-if instead of ng-show. ng-if does not create the dom element if the expression is false.
<div ng-if="expression">
//element exists if 'expression' is true
</div>
if you are ok to ahead with angular-ui then i think the accordian fits the requirement perfectly... [here's the link for angular-ui's the accordian] directive 1
angular-ui is the pure angularjs implementation of all twitter bootstrap components.
<accordion close-others="oneAtATime">
<accordion-group heading="Static Header, initially expanded" is-open="status.isFirstOpen" is-disabled="status.isFirstDisabled">
This content is straight in the template.
</accordion-group>
<accordion-group heading="{{group.title}}" ng-repeat="group in groups">
{{group.content}}
</accordion-group>
</accordian>
you can have either one or all user selected link detail section open at a time...

AngularJS Showing/Hiding content and swapping an image

I have a basic widget block:
<div class="matter ng-controller="ProductsCtrl">
<div class="container-fluid">
<div class="widget">
<div class="widget-head">
<div class="pull-left">Browse live products</div>
<div class="widget-icons pull-right">
<a class="wminimize" href="#" ng-click="showContent = !showContent"><i class="icon-chevron-up"></i></a>
</div>
<div class="clearfix"></div>
</div><!--widget-head-->
<div class="widget-content" ng-class="{ 'hidden': !showContent }">
<div class="padd">
<div>
{{content}}
</div>
</div>
<div class="widget-foot"></div>
</div><!--widget-content-->
</div><!--widget-->
</div>
</div>
And here is the empty controller:
appAdmin.controller("ProductsCtrl", function($scope){
});
I'm using ng-click to hide/show the content, but I am trying to default the content to be visible, and also try to swap the image for the icon chevron down whenever it's hidden. I am very new to Angular and am looking for some direction in adding models and things to make these simple features work.
Any help would be appreciated.
EDIT: Made default visible by switching ng-class="{ 'hidden' : !showContent }" to ng-class="{ 'hidden' : showContent }"
For the content to be visible by default, I would set $scope.showContent to true in the controller. You can use ng-class to change the chevron icon class based on the value of showContent in the following way: <i ng-class="{'icon-chevron-up': showContent, 'icon-chevron-down': !showContent}"></i>. Only the keys of the truthy values will be applied, so it will be either icon-chevron-up or icon-chevron-down. Let me know if I misunderstood your question!

AngularJS using ng-switch without wrapper div

I would like to use ng-switch because I do not want the other elements that I do not want to show to be part of the DOM. That is why i did not use ng-hide/ng-show. In the example below, I would like to only have the span tag be in the DOM without the div wrappers from the ng-switch. What is the best way to accomplish this?
<div ng-switch on="user">
<div ng-switch-when="true">
<span>One</span>
</div>
<div ng-switch-when="false">
<span>Two</span>
</div>
</div>
You can use the ng-switch directive as a custom element and not specify the div in the first place. For example:
<ng-switch on="user">
<span ng-switch-when="true">One</span>
<span ng-switch-default>Two</span>
</ng-switch>
Here is a plunker to play around with: http://plnkr.co/edit/zni6raUWOguhQh9jDiY3
the solution provided by #ChrisAuer this still creates a wrapping element.
AFAIK you'd have to use a custome directive. You may want to use angular-ui if
<div ui-if="user">
<span>One</span>
</div>
<div ui-if="!user">
<span>Two</span>
</div>
Probably, in your case, you'd be fine using ng-show or ng-hide which only hide(display:none) the element - they don't remove it form the DOM.
<div ng-show="user"> <!-- same as ng-hide="!user" -->
<span>One</span>
</div>
<div ng-hide="user"> <!-- same as ng-show="!user" -->
<span>Two</span>
</div>
I would say use ng-if, like this:
<div>
<div ng-if="user==true">
<span>One</span>
</div>
<div ng-if="user==false">
<span>Two</span>
</div>
</div>
you can use <span> to prevent your html layout changing
because <span> is not like <div>, it won't take up any space.
<span ng-switch="user">
<span ng-switch-when="true">One</span>
<span ng-switch-default>Two</span>
</span>

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