Below is a snippet using AngularJS to get the JSON response.
On scrolling to the bottom of the page, I need to request repeatedly till the JSON array list is empty.
<section>
<div style="padding-top:60px" infinite-scroll="myPagingFunction()" infinite-scroll-distance="3" ng-app="myApp" ng-controller="myCtrl">
<div ng-repeat="news in newsList">
<div class="col-lg-3 col-md-4 col-sm-6" style="">
<div class="thumbnail">
<img src="{{news.coverUrl}}" class="img-responsive" alt="{{news.name}}"/>
<div class="caption">
<h4>{{news.name}}</h4>
</div>
</div>
</div>
<div class="visible-lg clearfix" ng-if="($index+1)%4 == 0"></div>
<div class="visible-md clearfix" ng-if="($index+1)%3 == 0"></div>
<div class="visible-sm clearfix" ng-if="($index+1)%2 == 0"></div>
</div>
</div>
</section>
<script src="js/jquery.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<script src="js/ng-infinite-scroll.min.js"></script>
<script>
var offset = 0
var maxCount = 20
var app = angular.module('myApp', ['infinite-scroll']);
function myPagingFunction(){
app.controller('myCtrl', function($scope, $http) {
$http.get("news.json").then(function(response) {
$scope.newsList = response.data;
});
});
}
myPagingFunction();
</script>
<script src="js/bootstrap.min.js"></script>
Kindly help me in solving this.
Using jQuery + angular is not good
You must use angular way instead, and write some directives or listeners in run phase, but here's a better approach - use `ngInfiniteScroll plugin
You can simply use infinite Scroll services to easily achieve this ,
<ANY infinite-scroll='{expression}'
[infinite-scroll-distance='{number}']
[infinite-scroll-disabled='{boolean}']
[infinite-scroll-immediate-check='{boolean}']
[infinite-scroll-listen-for-event='{string}']>
Add ng-infinite scroll module in your application
for more info refer this [Documentation]:(https://sroze.github.io/ngInfiniteScroll)
You can use this simple directive and enjoy:
app.directive("scroll",['$window', function ($window) {
return function (scope, element, attrs) {
angular.element($window).bind("scroll", function () {
if (document.body.scrollHeight - $window.scrollY < 890) {
scope.$apply(function () {
scope.myPagingFunction();
});
}
});
};
}]);
and you can use this code for your situation
<section>
<div style="padding-top:60px" scroll ng-app="myApp" ng-controller="myCtrl">
<div ng-repeat="news in newsList">
<div class="col-lg-3 col-md-4 col-sm-6" style="">
<div class="thumbnail">
<img src="{{news.coverUrl}}" class="img-responsive" alt="{{news.name}}"/>
<div class="caption">
<h4>{{news.name}}</h4>
</div>
</div>
</div>
<div class="visible-lg clearfix" ng-if="($index+1)%4 == 0"></div>
<div class="visible-md clearfix" ng-if="($index+1)%3 == 0"></div>
<div class="visible-sm clearfix" ng-if="($index+1)%2 == 0"></div>
</div>
</div>
</section>
<script src="js/jquery.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<script src="js/ng-infinite-scroll.min.js"></script>
<script>
var offset = 0
var maxCount = 20
var app = angular.module('myApp', ['infinite-scroll']);
app.controller('myCtrl', function ($scope, $http) {
$scope.myPagingFunction= function() {
$http.get("news.json").then(function (response) {
$scope.newsList = response.data;
});
}
});
app.directive("scroll",['$window', function ($window) {
return function (scope, element, attrs) {
angular.element($window).bind("scroll", function () {
if (document.body.scrollHeight - $window.scrollY < 890) {
scope.$apply(function () {
scope.myPagingFunction();
});
}
});
};
}]);
</script>
<script src="js/bootstrap.min.js"></script>
Related
I'm very new to Angular js and am testing a few functions with a simple data-parser project (Plunkr). Right now, I'm having trouble accessing $scope variable within a jQuery on click event. I would like to keep some elements hidden until an image is clicked. While I can set ng-hide to true within the controller, $scope does not appear to work inside an on click handler. Please help.
zodiac.html
<!DOCTYPE html>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<body>
<div id="container" ng-app="myApp" ng-controller="myCtrl">
<div>
<h1>What Animal Are You?</h1>
<div id="selectPicture"></div>
</div>
<div id="zodiac" ng-hide="disappear">
<h1>Your Zodiac</h1>
<div id="your-zodiac">
</div>
<br>
<h1>Avoid these Animals</h1>
<div id="hateDiv">
</div>
<br>
<h1>These Are Your Besties</h1>
<div id="loveDiv">
</div>
</div>
<script src="scripts.js"></script>
</div>
</body>
scripts.js
function d(c) {
console.log(c)
}
var app = angular.module('myApp', [])
app.controller('myCtrl', function($scope, $http) {
$http.get('zodiac.json').success(function(data) {
$scope.disappear = true //WORKS HERE
$scope.animalsData = data
angular.forEach($scope.animalsData, function(item) {
$('#selectPicture').prepend('<img src="' + item.picture + '" alt="' + item.animal + '">')
})
$('#selectPicture').on('click', 'img', function($scope) {
$scope.disappear = false //DOES NOT WORK HERE
$('#zodiac div').empty();
findZodiac(this.alt, "#your-zodiac", true);
})
function findZodiac(animal, e, test) {
angular.forEach($scope.animalsData, function(item) {
if (item.animal == animal) { //look for the right object 'item', when found, get the image
//item.picture
$(e).prepend('<img src="' + item.picture + '">')
if (test == true) {
loveHate(item.hate, "#hateDiv")
loveHate(item.love, "#loveDiv")
}
return
}
})
}
function loveHate(array, e) {
angular.forEach(array, function(value) { //loops through an array, get each animal
findZodiac(value, e, false)
})
}
});
})
In my opinion you should not do DOM manipulation directly when using AngularJS. Use the directives provided by AngularJS instead. Here are the template and controller code if you do so -
zodiac.html
<!DOCTYPE html>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<body>
<div id="container" ng-app="myApp" ng-controller="myCtrl">
<div>
<h1>What Animal Are You?</h1>
<div id="selectPicture">
<img ng-repeat="animal in animalsData"
ng-src="{{animal.picture}}"
alt="{{animal.animal}}"
ng-click="disappear=false; findZodiac(animal)" />
</div>
</div>
<div id="zodiac" ng-hide="disappear">
<h1>Your Zodiac</h1>
<div id="your-zodiac">
<img ng-src="{{selectedAnimal.picture}}" alt="{{selectedAnimal.animal}}" />
</div>
<br>
<h1>Avoid these Animals</h1>
<div id="hateDiv">
<img ng-repeat="animal in selectedAnimal.hate"
ng-src="{{animal.picture}}"
alt="{{animal.animal}}" />
</div>
<br>
<h1>These Are Your Besties</h1>
<div id="loveDiv">
<img ng-repeat="animal in selectedAnimal.love"
ng-src="{{animal.picture}}"
alt="{{animal.animal}}" />
</div>
</div>
<script src="scripts.js"></script>
</div>
</body>
scripts.js
var app = angular.module('myApp', [])
app.controller('myCtrl', function($scope, $http) {
$scope.animalsData = [];
$scope.selectedAnimal = {};
$scope.disappear = true;
$scope.findZodiac = function(animal) {
$scope.selectedAnimal = animal;
};
$http.get('zodiac.json').success(function(data) {
$scope.animalsData = data;
});
});
In AngularJS $scope is a global variable for your controller, You don't need to pass it like this. directly use it as
$('#selectPicture').on('click','img',function(){
$scope.disappear=false;//this will work
$('#zodiac div').empty();
findZodiac(this.alt,"#your-zodiac",true);
})
check this corrected version
scope object only available in angular world.
I have two lists of stuff using ng-repeat. Then I want it to say "empty" if there are no items in a list.
Here's the updated version:
<!-- First List -->
<div ng-repeat="request in requests" ng-if="request.condition1 == 'something'">
{{request}}
</div>
<div>Empty list</div>
<!-- Second List (both use requests array but have different conditions-->
<div ng-repeat="request in requests" ng-if="request.condition22222 == 'something else'">
{{request}}
</div>
<div>Empty list</div>
Try this:
(function(angular) {
'use strict';
angular.module('app', [])
.filter('decorate', function() {
return function(input, model) {
return input.filter(function(val){
return val[model.prop] == model.val;
});
};
}).controller('MyController', ['$scope', '$filter', function($scope, $filter) {
$scope.requests = [{name:'Tom', age:23},{name:'Henry', age:23},{name:'Max', age:33}];
$scope.$filter = $filter;
}])
})(window.angular);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="app">
<div ng-controller="MyController">
<div ng-init='items1=$filter("decorate")(requests, {prop:"age", val:23})'>First list(age=23):</div>
<div ng-repeat='item in items1' ng-if='items1.length > 0' >{{item | json}}</div>
<div ng-if='items1.length == 0'>Empty</div>
<br/>
<div ng-init='items2=$filter("decorate")(requests, {prop:"name", val:"Sam"})'>Second list(name=Sam):</div>
<div ng-repeat='item in items2' ng-if='items2'>{{item | json}}</div>
<div ng-if='items2.length == 0'>Empty</div>
</div>
</body>
You can check against the length of your list and show it conditionally:
<div ng-show="!requests.length">List is empty</div>
If you're working with an object you can use Object.keys although it may not be supported in some older browsers.
I'm trying to trigger an 'onclick' event inside of an angular controller.
<div id="galerie">
<h2>{{main.Page.title()}}</h2>
<hr>
<div class="row">
<div class="col-sm-4 col-xs-6" ng-repeat="i in page.getLans() track by $index">
<a ng-click="page.selectGalerie($index+1)" href>Playground Vol.{{$index+1}}</a>
</div>
</div>
<div id="links">
<a id="galerieLink_{{$index}}" href="img/galerie/pg{{page.galerie.volume}}/{{file}}" ng-repeat="file in page.galerie.files">{{$index}} </a>
</div>
<div id="blueimp-gallery" class="blueimp-gallery blueimp-gallery-controls">
<div class="slides"></div>
<h3 class="title"></h3>
<a class="prev">‹</a>
<a class="next">›</a>
<a class="close">×</a>
<a class="play-pause"></a>
<ol class="indicator"></ol>
</div>
</div>
<script>
document.getElementById('links').onclick = function (event) {
event = event || window.event;
var target = event.target || event.srcElement;
var link = target.src ? target.parentNode : target;
var options = {index: link, event: event};
console.log(options);
var links = this.getElementsByTagName('a');
blueimp.Gallery(links, options);
};
</script>
I was trying it this way inside my controller:
angular.element('#galerieLink_0').trigger('click');
But it doesn't work.
Angular is not jquery. functionality belongs in the controller.
var app = angular.module("app", []);
app.controller("foo",["$scope",function($scope){
$scope.clickCount = 0;
$scope.counter = function() { $scope.clickCount++; }
}]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="foo">
<div ng-bind="clickCount"></div>
<button ng-click="counter()" >+1</button>
</div>
I'm learning AngularJs. I following this example with a few modification and i dont get it why it does not work.
The example is as follow:
<html ng-app="app">
<head>
<title>Calendar</title>
<link href="bootstrap/css/bootstrap.min.css" rel="stylesheet">
<script src="angular.min.js"></script>
<script>
angular.module('app', [])
.controller('dayCtrl', dayCtrl)
.directive('highlight', highlight);
function dayCtrl ($scope){
var daysName = ['Sunday', 'Monday', 'Tuesday'];
$scope.data = {
day : daysName[new Date().getDay()],
tomorrow : daysName[(new Date().getDay() + 1)]
};
}
function highlight () {
return function (scope, element, attrs){
if(scope.day == attrs['highlight']){
element.css('color', 'red');
}
}
}
</script>
</head>
<body>
<div class="container">
<div class="row panel" ng-controller="dayCtrl">
<div class="col-sm-12 page-header clearfix">
<h4>Angular App</h4>
</div>
<h4 highlight="Monday">
Today is {{ data.day || 'unknown'}}
</h4>
<h4>
Tomorrow is {{ data.tomorrow || 'unknown' }}
</h4>
</div>
</div>
</body>
I hope you can help me with this little thing
Try like this with scope.data.day in your angular directive:
function dayCtrl($scope) {
var daysName = ['Sunday', 'Monday', 'Tuesday'];
$scope.data = {
day: daysName[new Date().getDay()],
tomorrow: daysName[(new Date().getDay() + 1)]
};
}
function highlight() {
return function(scope, element, attrs) {
if (scope.data.day == attrs['highlight']) {
element.css('color', 'red');
}
}
}
angular.module('app', [])
.controller('dayCtrl', dayCtrl)
.directive('highlight', highlight);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app">
<div class="row panel" ng-controller="dayCtrl">
<div class="col-sm-12 page-header clearfix">
<h4>Angular App</h4>
</div>
<h4 highlight="Monday">
Today is {{ data.day || 'unknown'}}
</h4>
<h4>
Tomorrow is {{ data.tomorrow || 'unknown' }}
</h4>
</div>
</div>
I have used '.materialboxed' in my webpage, but the initialization in script doesn't work, I have to manually type $('.materialboxed').materialbox(); in console for it to work.
Html (ui-view in angular route)
<div class="row">
<div class="card-panel col l12" style="height: 750px;">
<img class="col l5 materialboxed" height="500px" id="poster"
ng-src="https://image.tmdb.org/t/p/original{{poster_path}}"/>
<div class="col l7">
<div class="row">
<a class="col l10" style="float:left;text-align: left;" ng-href="{{homepage}}">
<h3 class="title" ng-bind="original_title"></h3>
</a>
<a ng-href="http://www.imdb.com/title/{{imdb_link}}"
style="float:right;text-align: right; margin-top: 29px;"
class="imdb-link col l2" title="IMDb"><i class="icon-imdb"></i></a>
</div>
<div class="row"><p ng-bind="overview"></p>
<span class="right" ng-bind="release_date"></span>
<h5>Genres</h5>
<p ng-bind="genre"></p>
<h5>Production Companies</h5>
<p ng-bind="names">
</p>
<h5>Voting</h5>
<p ng-bind="vote_average"></p></div>
</div>
</div>
</div>
See the in 3rd line.
index.html
//rest code
<main ui-view></main>
</div>
<script src="js/angular_min.js"></script>
<script src="js/angular-touch.min.js"></script>
<script src="js/angular-ui-router.min.js"></script>
<script src="js/angucomplete-alt.js"></script>
<script src="appRoute.js"></script>
<script src="controller/MovieController.js"></script>
<script src="controller/LoginController.js"></script>
<script src="controller/RegisterController.js"></script>
<script src="controller/TvController.js"></script>
<script src="controller/LoggedInController.js"></script>
<script src="controller/TopMovieController.js"></script>
<script src="app-services/DetailsService.js"></script>
<script src="js/jquery-1.11.3.min.js"></script>
<script src="js/materialize.min.js"></script>
<script>
$(document).ready(function () {
$('.materialboxed').materialbox();
$('.button-collapse').sideNav({
menuWidth: 300,
edge: 'left',
closeOnClick: true
}
);
$('.modal-trigger').leanModal();
$("#movie").click(function () {
window.location.href = window.location.pathname + "#/movie";
});
$("#tv").click(function () {
window.location.href = window.location.pathname + "#/tv";
});
});
</script>
</body>
Even after initializing the materialboxed, it doesn't work. It works only after typing $('.materialboxed').materialbox(); in console manually.
Help me figure this out. Thanks
You shouldn't use $(document).ready in Angular. In fact you should try to use as little jQuery as possible, but if you need to, then you should create a directive that allows you to initialize the function after they render.
var app = angular.module('myApp');
app.directive('onLastRepeat', function() {
return function(scope, element, attrs) {
if (scope.$last)
setTimeout(function() {
scope.$emit('onRepeatLast', element, attrs);
}, 1);
};
});
app.controller('MoviesController', function($scope) {
$scope.$on('onRepeatLast', function(scope, element, attrs) {
$('.materialboxed').materialbox();
});
}
Now you can apply this to your HTML:
<ul>
<!-- this is just an example with the added directive -->
<li ng-repeat="movie in movies" on-last-repeat>
<img ng-src="{{imageObjectHere}}" class="materialboxed">
</li>
</ul>
Since you added this new directive in there, the $('.materialboxed').materialbox(); should fire after the repeat is done