I am working with AngularJs, Bootstrap 3. I want to toggle my glyphicon icon on my page. But i am able to do it. I followed the response at the stackoverflow question here.
I don't understand why i cannot display glyphicon with the toggle expression.
Here is my code :
<script>
angular.module("myapp", [])
.controller("MyController", function($scope) {
$scope.toggleIcon = false;
$scope.sort = function (sortBy) {
$scope.toggleIcon = !$scope.toggleIcon;
// sorting logic
};
} );
</script>
</head>
<body ng-app="myapp">
<div ng-controller="MyController" >
<div class="row">
Here the name to sort
Name <span class="glyphicon" ng-class="{glyphicon-sort-by-alphabet': toggleIcon, 'glyphicon-sort-by-alphabet-alt': !toggleIcon}"></span>
</div>
<div class="row">
Here the icon
<span class="glyphicon glyphicon-sort-by-alphabet"></span>
</div>
</div>
</body>
</html>
You can see the code on Plunker
Thank you.
Related
I've got a problem using $anchorScroll. I've got a div with an ng-ig condition that isn't visible at the beginning. I need use the $anchorScroll function to go in that div when a button is clicked. This button also make the div visible. Right now doesn't work because i think it fires the $anchorScroll before the div is created. This is the code:
<body ng-app="testApp" data-ng-controller="searchController as searchCtrl" >
<div id="scrollArea">
<form>
//HTML input elements
<div class="buttons">
<md-button class="md-primary md-raised" ng-click="searchCtrl.gotoTable('resultTable')">Start</md-button>
{{searchCtrl.test}}
</div>
</form>
</div>
<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>
<!-- Smart Table for displaying result -->
<div id="resultTable" class="rtable">
<div ng-if="searchCtrl.test == true" >
//table content
</div>
</div>
</body>
and the angular part
var app = angular.module('testApp', []);
app.controller("searchController", function($scope, $location, $anchorScroll, $timeout){
var self = this;
self.test = false;
self.gotoTable = function(resultTable)
{
self.test = true;
self.anchor(resultTable);
};
self.anchor = function(resultTable) {
$location.hash('resultTable');
$anchorScroll();
} ;
});
Plunker: http://plnkr.co/edit/HrdN2ZACDui61l1kPHEj?p=preview
Thanks
After playing around with your plunker, I've found that updating angularJs for the latest version fixed the problem.
I don't know if you can update your angular version?
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.7/angular.min.js"></script>
I am using ng-switch when method to append divs. This is the code created
<input type="checkbox" ng-model="data" />
<ng-switch on="data">
<span ng-switch-when="true">
<div class="firstSwitch"></div>
</span>
<span ng-switch-default>
<div class="secondSwitch"></div>
</span>
</ng-switch>
Its working fine now. But when i want to append something in the div.
Say, i want to append text using javascript inside secondSwitch div, but i can't append it because initially the secondSwitch div is not appended.
setTimeout(function(){
$(".secondSwitch").html("<p>Second Switch is displayed</p>");
$(".firstSwitch").html("<p>First Switch is displayed</p>");
},100);
Here the text is appended properly inside firstSwitch div because initially it is created but the text is not appended inside secondSwitch div because it's not created.
So, i can't append inside that div. So, how to overcome this problem guys. Here is the Plnkr
As you already noticed ng-switch modifies DOM and firstSwitch is not created initially. You should use binding to get this working. Here is working demo
<ng-switch on="data">
<span ng-switch-when="true">
<div class="firstSwitch"><p>{{firstText}}<p></div>
</span>
<span ng-switch-default>
<div class="secondSwitch"><p>{{secondText}}<p></div>
</span>
app.controller('MainCtrl', function($scope, $timeout) {
$scope.data = false;
$timeout(function(){
$scope.firstText = "First Switch is displayed";
$scope.secondText = "Second Switch is displayed";
},100);
Update
And here's demo for binding to html
Try this
<div class="secondSwitch"><div id="replacediv"></div></div>
var divElement = angular.element(document.querySelector('#replacediv'));
var appendHtml = $compile('<div>test</div>')($scope);
divElement.append(appendHtml);
you can use ng-show directive for this.
// Code goes here
var app = angular.module('plunker', []);
app.controller('MainCtrl', function($scope,$timeout) {
$scope.data = false;
$scope.show = false;
$scope.change = function(){
$timeout(function(){
$scope.show = !$scope.show;
},300);
}
});
<script src="http://code.jquery.com/jquery-1.12.2.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="plunker">
<div ng-controller="MainCtrl">
<input type="checkbox" ng-model="data" ng-change="change()" />
Check
<ng-switch on="data">
<span ng-switch-when="true">
<div class="firstSwitch">
<p ng-show="show">First Switch is displayed</p>
</div>
</span>
<span ng-switch-default>
<div class="secondSwitch">
<p ng-show="!show">Second Switch is displayed</p>
</div>
</span>
</ng-switch>
</div>
I'm making an app with a dynamic page. I have multiple buttons on my page but all buttons should not be visible at once rather visible one after another in consecutive. I need them to be invisible at first. For instance, the first button should be visible. When I click on that button, the button should disappear and the new button should appear and so forth. What would be the best option for implementing this using ng-show/ng-hide?
Edit--------
As for what I tried to do with them, I tried to do something like this but then I get confused with it all.:
<button style="Width: 6em;" ng-show="show" ng-click="question()">???</button>
<button style="Width: 6em;" ng-hide="hide" ng-click="question1()">???</button>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
var darkness = "Darkness";
$scope.darkness = darkness;
$scope.question = function () {
var text = "Nothing but darkness and the pain that radiates through your very being.";
$scope.text = text;
$scope.hide = false;
$scope.show = !show;
}
});
I've been working on an application that shows and hides div elements. Hope you can you proceed with the following example.
<div class="container" ng-app="showHideApp" ng-controller="showHideController">
<div class="col-sm-8 col-sm-offset-2">
<!-- FORM -->
<div class="form-group">
<button class="btn btn-danger" ng-click="showMe();">Click me for show</button>
<button class="btn btn-danger" ng-click="hideMe();">Click me for hide</button>
</div>
<div class="form-group" ng-show="show">
<p>I am showing</p>
</div>
</div>
</div>
JS Code:
angular.module('showHideApp',[]).controller('showHideController', function($scope){
$scope.showMe = function(){
$scope.show=true;
}
$scope.hideMe = function(){
$scope.show=false;
}
});
I have a div that I am hiding/showing using angular in my HTML, but I want to know how to check if it is currently hidden or not in my controller.
Any solutions I have found so far are jQuery based using 'hasClass' to find ng-hide, but I don't want to use jQuery.
My div looks like this
<div class="item item-input" ng-show="showDetails"></div>
<button class="button button-block button-light leftTextButton"
ng-click="showDetails = ! showDetails; updateTimes()">
<i ng-class="{'icon icon ion-minus-round': showDetails,
'icon icon ion-plus-round': !showDetails}"></i> End Time</button>
I thought from my controller I could just call if($scope.showDetails) and that would return true or false, but it is undefined.
How can I check if a div if hidden or showing from my controller? Thanks
I'm guessing you are having a scoping issue. Passing it to the function that will check it is the best bet. Otherwise if it is in scope the controller should be able to access it.
angular.module('MyApp', [])
.controller('MyController', ['$scope',
function($scope) {
$scope.myBoolean = false;
$scope.checkMyBooleanOnScope = function() {
alert($scope.myBoolean);
};
$scope.checkMyOtherBooleanOnScope = function() {
alert($scope.myOtherBoolean);
};
$scope.checkBooleanByPassingIt = function(bool) {
alert(bool);
};
}
]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="MyApp" ng-controller="MyController">
<p>myBoolean predefined in the controller:{{myBoolean}}
<input type="checkbox" ng-model="myBoolean" />
</p>
<p>
<button ng-click="checkMyBooleanOnScope()">checkMyOtherBooleanOnScope</button>
<button ng-click="checkBooleanByPassingIt(myBoolean)">checkMyBooleanByPassingIt</button>
</p>
<p>myOtherBoolean defined on the page with ng-model:{{myOtherBoolean}}
<input type="checkbox" ng-model="myOtherBoolean" />
</p>
<p>
<button ng-click="checkMyOtherBooleanOnScope()">checkMyBooleanOnScope</button>
<button ng-click="checkBooleanByPassingIt(myOtherBoolean)">checkMyOtherBooleanByPassingIt</button>
</p>
</div>
I had a hard issue figuring out on how to hide and show icon/text with angular code. I am completely new to angular and tried hard on the below fiddle code. How do I hide + or minus icon with .closest in such dom scenarios.
<div ng-controller="MyCtrl">
{{name}}
<div data-toggle="collapse" aria-expanded="true" data-target="#list-item-line-0" id="expandCollapseChild" ng-click="addExpandCollapseChildIcon()">
<div>
<div>
<label>
<div>
<span class="icon-expand">-</span>
<span class="icon-collapse">+</span>
</div>
<div>
Click me to hide minus icon
</div>
</label>
</div>
</div>
</div>
</div>
var myApp = angular.module('myApp', []);
function MyCtrl($scope) {
$scope.name = 'Superhero';
$scope.addExpandCollapseChildIcon = function() {
alert('');
if (angular.element('#expandCollapseChild').hasClass('collapsed')) {
angular.element(this).closest('.icon-collapse').css('display', 'none');
} else {
if (angular.element('#expandCollapseChild').hasClass('collapsed')) {
angular.element(this).closest('.icon-collapse').css('display', 'block');
}
}
}
In Angular, this is the wrong approach. You shouldn't actually show or hide elements inside the controller. That's applying a jQuery style (working directly on the DOM) to Angular.
In Angular, you'd use something like ng-if, ng-show or ng-class, all of which can link back to a property on the scope object that is accessible via the controller.
Here are some examples:
<div ng-if="myProp === 'ShowMe'">
<div ng-show="myProp === 'ShowMe'">
<div ng-class="{myCssClass: myProp === 'ShowMe'">
Inside your controller, you'd have something like this:
function MyCtrl($scope) {
$scope.myProp = 'ShowMe';
$scope.addExpandCollapseChildIcon = function(newPropValue) {
$scope.myProp = newPropValue;
}
}
Here's some links to documentation on ng-if, ng-show and ng-class:
https://docs.angularjs.org/api/ng/directive/ngIf
https://docs.angularjs.org/api/ng/directive/ngShow
https://docs.angularjs.org/api/ng/directive/ngClass
AngularJS has a bunch of angulary ways of doing things, your question for example might look like this:
var app = angular.module("app", []);
app.controller("ctrl", function($scope) {
$scope.collapsed = true;
})
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app">
<div ng-controller="ctrl">
<span ng-bind="collapsed ? '+' : '-'"></span>
</div>
</div>
It watches a model and changes it's appearance based on that model using the ternary operator within ng-bind.
The way you defined your app and controller was incorrect. There's a bunch of different ways to do this as you can see from the answers.
I took this approach:
<div ng-app='myApp' ng-controller="MyCtrl">
{{name}}
<div>
<div>
<div>
<label>
<div>
<span ng-show='(collapsed != false)' class="icon-expand">-</span>
<span ng-show='(collapsed == false)' class="icon-collapse">+</span>
</div>
<div ng-click='collapsed = !collapsed'>
Click me to hide minus icon
</div>
</label>
</div>
</div>
</div>
</div>
<script>
var myApp = angular.module('myApp', []);
myApp.controller('MyCtrl', function ($scope) {
$scope.name = 'Superhero';
$scope.collapsed = false;
});
</script>
Create a scoped variable that indicated whether or not it is collapsed . Then change that variable and the ng-shows will react.