Menu
i'm trying to do a nice fadeout+fadein transition when the currentVertical changes. in knockout it was so simple but i can't figure it out here. please help.
the following code displays a UL list which is "bound" to a pricings array in the $scope.currentVertical when an LI element is clicked, the $scope.currentVertical is changed and the UL list updates accordingly. This works fine, but i would like the entire #container div to fade out and fadein when $scope.currentVertical is changed. Please help...
My html:
<body>
<h1>Pricing Poll</h1>
<div ng-controller="VerticalsController">
<div id="container">
<h2>{{currentVertical.title}}</h2>
<ul>
<li ng-repeat="pricing in currentVertical.pricings">
<a ng-click="currentVertical.selectPricing(pricing)">{{pricing.name}}</a>
</li>
</ul>
</div>
</div>
</body>
my javascript:
function VerticalsController($scope) {
$scope.verticals = [
{
title:'internet',
pricings: [
{
name: 'netvision',
monthly: 23
},
{
name: 'hot',
monthly: 33
},
{
name: '012',
monthly: 28
}
]
},
{
title:'cellular',
pricings: [
{
name: 'cellcom',
monthly: 20
},
{
name: 'pelephone',
monthly: 30
},
{
name: 'orange',
monthly: 25
}
]
},
{
title:'banks',
pricings: [
{
name: 'leumi',
monthly: 20
},
{
name: 'poalim',
monthly: 30
},
{
name: 'benleumi',
monthly: 25
}
]
}];
$scope.selected = [
];
$scope.currentIndex = 0;
$scope.currentVertical = $scope.verticals[0];
$scope.selectPricing = function(pricing) {
$scope.selected.push(pricing);
$scope.currentIndex++;
$scope.currentVertical = $scope.verticals[$scope.currentIndex];
};
/*$scope.remaining = function() {
var count = 0;
angular.forEach($scope.todos, function(todo) {
count += todo.done ? 0 : 1;
});
return count;
};*/
}
905
The keyframes() function in Angular allows you to specify multiple interim styles within a single transition, with an optional offset to define the point in the animation where each style change should occur.
We have to import the animation function that is to be used in the . ts file as shown above. import { trigger, state, style, transition, animate } from '@angular/animations'; Here we have imported trigger, state, style, transition, and animate from @angular/animations.
The ngAnimate module does not animate your HTML elements, but when ngAnimate notice certain events, like hide or show of an HTML element, the element gets some pre-defined classes which can be used to make animations. The directives in AngularJS who add/remove classes are: ng-show. ng-hide.
You have to use custom or create directives to start advanced DOM manipulation like animations.
Here's a fiddle with the animation you requested, I use the visible variable on scope to trigger fading and the $timeout service to only change the selectedItem when fadeOut, it could be improved to pass a timeout and a callback as a directive option...
Fiddle: http://jsfiddle.net/g/Bs66R/1/
JS:
function VerticalsController($scope, $timeout) {
$scope.verticals = [{
title:'internet',
pricings: [{
name: 'netvision',
monthly: 23
},
{
name: 'hot',
monthly: 33
},
{
name: '012',
monthly: 28
}]
},
{
title:'cellular',
pricings: [{
name: 'cellcom',
monthly: 20
},
{
name: 'pelephone',
monthly: 30
},
{
name: 'orange',
monthly: 25
}]
},
{
title:'banks',
pricings: [{
name: 'leumi',
monthly: 20
},
{
name: 'poalim',
monthly: 30
},
{
name: 'benleumi',
monthly: 25
}]
}];
$scope.selected = [
];
$scope.currentIndex = 0;
$scope.currentVertical = $scope.verticals[0];
$scope.selectPricing = function(pricing) {
$scope.selected.push(pricing);
$scope.currentIndex++;
$scope.visible = false;
$timeout(function(){
$scope.currentVertical = $scope.verticals[$scope.currentIndex];
$scope.visible = true;
}, 1000);
};
$scope.visible = true;
}
var fadeToggleDirective = function() {
return {
link: function(scope, element, attrs) {
scope.$watch(attrs.uiFadeToggle, function(val, oldVal) {
if(val === oldVal) return; // Skip inital call
// console.log('change');
element[val ? 'fadeIn' : 'fadeOut'](1000);
});
}
}
}
angular.module('app', []).controller('VerticalsController', VerticalsController).directive('uiFadeToggle', fadeToggleDirective);
angular.bootstrap(document.body, ['app']); angular.bootstrap(document.body, ['app']);
HTML:
<h1>Pricing Poll</h1>
<div ng-controller="VerticalsController">
<div id="container" ui-fade-toggle="visible">
<h2>{{currentVertical.title}}</h2>
<ul>
<li ng-repeat="pricing in currentVertical.pricings">
<a ng-click="selectPricing(pricing)">{{pricing.name}}</a>
</li>
</ul>
</div>
</div>
I recommend you use the new ngAnimate directive provided in the AngularJS Core.
Read more here
34
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
