I am trying to create a template that shows some transcluded content. When I use ng-show everything works fine, but using ng-if or ng-switch gives me problems. I get this error message: Illegal use of ngTransclude directive in the template! No parent directive that requires a transclusion found
I understand that ng-switch creates a new scope. But the transclude should still go up to the parent chain. Is this a defect in angularjs? See http://jsfiddle.net/HgvP7/
Here is my html, modified from the documentation example:
<div ng-app="docsTransclusionExample">
<div ng-controller="Ctrl">
<my-dialog>Check out the contents, {{name}}!</my-dialog>
</div>
<!-- my-dialog.html -->
<script type="text/ng-template" id="my-dialog.html">
<div ng-switch="1+1">
<div ng-switch-when="2">
<div ng-transclude></div>
</div>
</div>
</script>
</div>
And the code:
angular.module('docsTransclusionExample', [])
.controller('Ctrl', function($scope) {
$scope.name = 'Tobias';
})
.directive('myDialog', function() {
return {
restrict: 'E',
transclude: true,
scope: {},
templateUrl: 'my-dialog.html',
link: function (scope, element) {
scope.name = 'Jeff';
}
};
});
Related
I am using Bootstrap UI's accordion directive. This uses transclusion under the hood. I have some logic that needs repeated, so I am trying to create a directive that wraps the accordian, which also uses transclusion.
<div>
<div accordion>
<div accordion-group is-open="isOpen">
<div accordion-heading>
<span class="glyphicon" ng-class="{'glyphicon-minus-sign': isOpen, 'glyphicon-plus-sign': !isOpen}"></span>
<strong>{{headerTitle}}</strong>
</div>
<div ng-transclude></div>
</div>
</div>
</div>
Here is the JavaScript:
application.directive('collapsePanel', ['baseUrl', function (baseUrl) {
return {
restrict: 'A',
templateUrl: baseUrl + 'content/templates/collapse_panel.html',
replace: true,
transclude: true,
scope: {
headerTitle: '#'
},
controller: ['$scope', function ($scope) {
$scope.isOpen = false;
}]
};
}]);
It should be as simple to use as:
<div collapse-panel header-title="Title">
{{scopeVariable}}
</div>
Assuming scopeVariable is in my controller, I would think its value would appear. From what I can tell, the scope belongs to the collapse-panel rather than the outer scope. It is almost like having nested transclusion directives is causing my problem.
Is there a trick to nesting transclusions like this?
Normally, when i'm creating a directive, i have two possible ways to deal with directive templates. I can create a html file somewhere on my server and use it's URL in directive settings:
#directives.directive "someDirective", [
'$rootScope'
($rootScope) ->
controller: ($scope) ->
link: (scope, element, attrs) ->
return
restrict: 'A'
templateUrl: 'path/to/template.html'
scope: {
eventId: '#'
}
]
or i can put the script tag somewhere in the markup and use it's ID as a templateUrl:
<script type="text/ng-template" id="template.html">
<p>Hello {{ name }}</p>
</script>
However, i was wondering - is that possible to put that template to directive container tag as a body of it? That's how i want it to look:
<div my-ng-directive>
<p>Hello {{ name }}</p>
</div>
I think what you're looking for is ng-transclude,
basically ng-transclude allows your to "create" a slot in your original template that will contain the content of the original html element, so in your example a basic directive that does what you want will look like:
angular.module('myModule', [])
.directive('myNgDirective', function() {
return {
controller: function($scope) {
$scope.name = "Test";
},
transclude: true,
restrict: 'A',
template: '<div><h1>The directive</h1><div ng-transclude></div></div>'
}
});
This code:
<div my-ng-directive>
<p>Hello {{ name }}</p>
</div>
Will return:
<div>
<h1>The directive</h1>
<div>
<p>Hello {{ name }}</p>
</div>
</div>
I have an issue where a directive i'm using for several similar elements in an ng repeat is showing the wrong element when calling the keyup function.
plunker: http://plnkr.co/edit/ARFlsgPdxikpzLScztxU?p=preview
Here's the same code:
html
<body ng-app="app">
<section ng-controller="MainController" ng-repeat="item in list">
<div ng-repeat="item in list">
<h3>Item {{$index}}</h3>
<div class="aliasContainer">
<input text="text" obj-key="alias" value="{{item.alias}}" ng-keyup="logItem($event, item)">
</div>
<div class="nameContainer">
<input text="text" obj-key="name" value="{{item.name}}" ng-keyup="logItem($event, item)">
</div>
</div>
</section>
<script src="https://code.angularjs.org/1.2.25/angular.js"></script>
<script src="script.js"></script>
</body>
js
var app = angular.module('app', []);
app.controller('MainController', ['$scope', function($scope){
console.log("hello ctrl");
$scope.list = [
{name: 'Dick Grayson', alias: 'Nightwing'},
{name: 'Bruce Wayne', alias: 'Batman'},
{name: 'Jason Todd', alias: 'Robin'}
];
}]);
app.directive('objKey', function() {
return {
restrict: 'A',
link: function(scope, element, attrs) {
scope.logItem = function($event, item) {
console.log(element);
};
}
};
});
The behavior the link function is exhibiting is for each div that is repeated, only the the input in the nameContainer gets passed on keyup (logging the element will show the input in nameContainer of the same parent div even if the input in aliasContainer was the triggering element.)
To reuse your directive and keeping its scope separate from outer scope (controller), you need to have a isolate scope to your directive
app.directive('objKey', function() {
return {
restrict: 'A',
scope: true, // << Isolating scope
link: ....
}
};
You should look into directive's scope: https://docs.angularjs.org/guide/directive
If you don't isolate the scope, your directive's scope will be the same as the scope when it's declared, in this case it will use the child scope created by ng-repeat.
To fix this, just isolate the scope with scope: true
I created directive that appends transclude value after the directive body. I cant use ng-transclude inside my directive because it creates for the simple text as transclude value and it break my page. I use
controller: function($scope, $element, $transclude) {
$element.append($transclude().contents());
}
to append it. It works great, but when I use my directive inside ng-repeat something goes wrong and $transclude().contents() don't contain my text. Can someone explain this behavior?
Here example:
http://plnkr.co/edit/1y4avkwmgjhiKkuoZlug
I can't explain why $transclude().contents() don't contain your text, but I can show how to easy fix that please code below.
var app = angular.module('app', []);
app.controller('MainCtrl', function($scope) {
});
app.directive('test', function(){
return {
transclude: true,
restrict: 'E',
template: '<div >From directive </div> <div ng-transclude></div><hr/>',
};
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.22/angular.min.js"></script>
<body ng-app="app">
<div ng-controller="MainCtrl">
<div ng-repeat="a in [1, 2, 3, 4, 5]">
<test>From transclude {{a}}</test>
</div>
</body>
I think it should be easy to use the well known angular attributes on a directive out of the box.
For example if the name of my directive is myDirective I would like to use it this way:
<div ng-controller="myController">
<my-directive ng-click="doSomething()"><my-directive>
</div>
instead of needing to define a custom click attribute (onClick) as in the example below
<div ng-controller="myController">
<my-directive on-click="doSomething()"><my-directive>
</div>
It seems that ng-click can work, but then you need to specify ng-controller on the directive tag too which I don't want. I want to define the controller on a surrounding div
Is it possible to use ng-click on a directive together with a controller defined on a parent html element?
Here is updated code. Maybe is this what you were looking for.
Html:
<div data-ng-app="myApp">
<div data-ng-controller="MyController">
<my-directive data-ng-click="myFirstFunction('Hallo')"></my-directive>
<my-directive data-ng-click="mySecondFunction('Hi')"></my-directive>
</div>
</div>
Angular:
var app = angular.module('myApp', []);
app.directive('myDirective', function(){
return {
restrict: 'EA',
replace: true,
scope: {
eventHandler: '&ngClick'
},
template: '<div id="holder"><button data-ng-click="eventHandler()">Call own function</button></div>'
};
});
app.controller('MyController', ['$scope', function($scope) {
$scope.myFirstFunction = function(msg) {
alert(msg + '!!! first function call!');
};
$scope.mySecondFunction = function(msg) {
alert(msg + '!!! second function call!');
};
}]);
Edit
Check solution that I made in jsFiddler is that what you were looking for?
http://jsfiddle.net/migontech/3QRDt/1/