Angularjs Directive finding element inside ngIf - angularjs

I have created a angularjs directive that are supposed to display an address.
$(elem).find('button').length
now return the correct value but it have been called a hack and is there a better way to do it. I understand that ngIf creates a child scope and the button element isn't available when my link code runs if I don't wrap it in $timeout.
So what is the pretty way to access the element inside my ngIf without the $timeout hack?
My Directive
angular.module('directives')
.directive('addresss', ['$timeout', function ($timeout) {
return {
restrict: 'AE',
scope: {
address: '='
},
templateUrl: 'template........ ',
link: function(scope,elem,attr){
$timeout(function(){
console.log($(elem).find('button').length);
})
}
};
}]);
Template for address directive
<div class="spacer">
<h1>Address</h1>
<div>
<strong>{{address.name}}</strong>
</div>
<div ng-if="address.name">
<button class="btn-link">Delete</button>
</div>
</div>

if all you want to bind a click event you could just put a ng-click in the button:
JS:
app.directive('address', [function () {
return {
restrict: 'AE',
scope: {
address: '='
},
templateUrl: 'template.html ',
link: function(scope,elem,attr){
scope.myClickHandler = function() {
console.log('button clicked');
});
}
};
Template:
<div class="spacer">
<h1>Address</h1>
<div>
<strong>{{address.name}}</strong>
</div>
<div ng-if="address.name">
<button ng-click="myClickHandler()" class="btn-link">Delete</button>
</div>
</div>

Try this (if I get well your question)
html
<div data-ng-controller="MainController">
<div data-my-dir address="address"></div>
</div>
js
angular.module('myApp', [])
.controller('MainController',function($scope) {
$scope.address = {
name : 'myname'
};
})
.directive("myDir", function () {
return {
scope:{
address: '=',
},
template:'<button class="btn-link" ng-if="address.name">Delete</button>',
link: function (scope, elem) {
console.log(scope.address.name);
}
}
});

Related

Pass argument between parent and child directives

I have parent directive for navigation menu and child directives for menu links. Something like this:
<menu>
<menu-link />
<menu-link />
</menu>
In menu directive I use ng-translucent to be able to add html.
Is there any way to pass argument from menu to all menu-link elements?
For example, if:
<menu ng-disabled='true'..
I want all menu-link directives to get that value from parent.
One more thing: each menu-link have its own attributes, so it needs to have own scope.
You can make use of require, for more info read the angular directive doc.
Refer the example for more info:
angular.module('myApp', [])
.controller('MyController', MyController)
.controller('MyDirectiveController', MyDirectiveController)
.directive('myDirective', myDirective)
.directive('childDirective', childDirective)
function MyController($scope) {
}
function MyDirectiveController($scope) {
this.isDisabled = function() {
return $scope.disabled;
};
}
function myDirective() {
return {
restrict: 'E',
transclude: true,
template: '<div>myDirective Disabled: {{ disabled }}<ng-transclude></ng-transclude></div>',
scope: {
disabled: '=?ngDisabled'
},
controller: 'MyDirectiveController'
};
}
function childDirective() {
return {
restrict: 'E',
require: '^^myDirective',
template: '<div>childDirective disabled: {{ disabled }}</div>',
scope: {},
link: function(scope, elem, attrs, myDirectiveCtrl) {
scope.disabled = myDirectiveCtrl.isDisabled();
}
};
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.1/angular.min.js"></script>
<div ng-app="myApp">
<div ng-controller="MyController">
<my-directive ng-disabled="true">
<child-directive></child-directive>
<child-directive></child-directive>
</my-directive>
</div>
</div>

AngularJS model update but view not updating [duplicate]

I need to modify a root scope attribute from within a callback inside a directive. But the directive is in a inner scope created by a switch directive.
HTML
<div ng-app="app" ng-controller='AppController'>
<p>Selected: {{ selected }}</p>
<div ng-switch on="selected">
<div ng-switch-default>
<p>Item: {{ selected }}</p>
<custom-tag selected-item="selected" />
</div>
<div ng-switch-when="New value">
<p>Worked</p>
</div>
</div>
</div>
JavaScript
angular.module('app', [])
.directive("customTag", [function () {
return {
restrict: "E",
replace: true,
template: "<input type='button' value='Click me' />",
link: function (scope, element, attrs) {
element.bind('click', function () {
scope[attrs.selectedItem] = "New value";
scope.$apply();
});
}
};
}]);
function AppController($scope) {
$scope.selected = 'Old value';
}
Fiddle: http://jsfiddle.net/nJ7FQ/
My objective is to be able to display "New value" in the Selected area.
How can I accomplish what I am trying to do? What am I doing wrong?
Besides, as I am trying to make a component. Is there a way to do the same but with an isolated scope?
I updated the fiddle, basically had to go to the parent to get the right "selected" variable, also used the isolate scope = to get two way binding between the value passed in and the internal model.
http://jsfiddle.net/nJ7FQ/2/
angular.module('app', [])
.directive("customTag", [function () {
return {
restrict: "E",
replace: true,
template: "<input type='button' value='Click me' />",
scope: {model:'='},
link: function (scope, element, attrs) {
element.bind('click', function () {
scope.model[attrs.selectedItem] = "New value";
scope.$apply();
});
}
};
}]);
function AppController($scope) {
$scope.selected = 'Old value';
}
and the HTML
<div ng-app="app" ng-controller='AppController'>
<p>Selected: {{ selected }}</p>
<div ng-switch on="selected">
<div ng-switch-default>
<p>Item: {{ selected }}</p>
<custom-tag selected-item="selected" model="$parent" />
</div>
<div ng-switch-when="New value">
<p>Worked</p>
</div>
</div>
</div>
Updated the fiddle to use your original reading of the property from the attribute:
http://jsfiddle.net/nJ7FQ/4/
I improved the jsfiddle a bit:
angular.module('app', [])
.directive("customTag", ['$parse', function ($parse) {
return {
restrict: "E",
replace: true,
template: "<input type='button' value='Click me' />",
link: function (scope, element, attrs) {
element.bind('click', function () {
scope.$apply(function () {
$parse(attrs.selectedItem).assign(scope.$parent, "New value");
});
});
}
};
}]);
function AppController($scope) {
$scope.selected = { 'foo': 'Old value' };
}
http://jsfiddle.net/nJ7FQ/15/
This way, the scope value, you want to change can also be an object property like selected.foo in the example. Also, I removed the scope parameter and told the directive to always use the parent scope. And finally I wrapped the click handler into the $apply callback (see here for example). Better would be, of course, to use ngClick instead of the element.bind().

Angular directive scope - template include vs inline transclude

I have an angular directive for displaying a modal window. It can accept the contents either inline between the HTML tags, or be pointed to a template. When using this directive I seem to have normal access to the $scope when I am using the transcluded inline version of this directive, but when I use a template I do not.
What am I missing here? I've made a smaller sample directive that has the same behavior.
Demo: http://fiddle.jshell.net/ahezfaxj/2
Inline Content Usage
<ang-test show="showBoolean">
<p>Content here!</p>
</ang-test>
Template Usage
<ang-test show="showBoolean" template="'myTemplate.html'"></ang-test>
Directive
app.directive("angTest", function () {
return {
template: function () {
return "<div class='test-container'>" +
" <div ng-if='show && template' ng-include='template'></div>" +
" <div ng-if='show && !template' ng-transclude></div>" +
"</div>";
},
restrict: "E",
replace: true,
transclude: true,
scope: {
template: "#",
show: "="
},
link: function ($scope, $element, attrs) {
if(value){
$element[0].style.display="block";
}else{
$element[0].style.display="none";
}
}
};
});
Please see demo below. You created isolated scope in your directive thus your directive scope is not this same as controller $scope. But you can add as well thing to your directive scope like in example below.
I hope that will help.
var app = angular.module("app", []);
app.controller("BaseCtrl", function ($scope) {
$scope.thing = "Hello!";
$scope.showOne=false;
$scope.showTwo=false;
});
app.directive("angTest", function () {
return {
template: function () {
return "<div class='test-container'>" +
" <div ng-if='show && template' ng-include='template'></div>" +
" <div ng-if='show && !template' ng-transclude></div>" +
"</div>";
},
restrict: "E",
replace: true,
transclude: true,
scope: {
template: "#",
show: "=",
thing:'#'
},
link: function ($scope, $element, attrs) {
//Show/hide when `show` changes
$scope.$watch("show", function (value) {
if(value){
$element[0].style.display="block";
}else{
$element[0].style.display="none";
}
});
}
};
});
.test-container{
padding:5px;
background: #EEE;
}
.transcluded {
color:red
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app">
<div ng-controller="BaseCtrl">
Outside Directive: <strong>{{thing}}</strong>
<hr />
<button type="button" ng-click="showOne=!showOne">Toggle One</button>
<ang-test show="showOne">
<p class="transcluded">Inside Included Directive: <strong>--> thing transcluded-->{{thing}}</strong></p>
</ang-test>
<hr />
<script type="text/ng-template" id="myTemplate">
<p>Inside Template Directive: <strong>thing from directive scope -->{{thing}}</strong></p>
</script>
<button type="button" ng-click="showTwo=!showTwo" >Toggle Two</button>
<ang-test show="showTwo" template="myTemplate" thing="{{thing}}"></ang-test>
</div>
</div>

Pass object to custom angular bootstrap ui tooltip

Im trying to pass and object to a custom angular-ui bootstrap tooltip component.
My code so far is a new directive:
angular.module('ui.bootstrap.korv', [ 'ui.bootstrap.tooltip' ])
.directive('korvPopup', function () {
return {
restrict: 'EA',
replace: true,
scope: { title: '#', content: '#', placement: '#', animation: '&', isOpen: '&', species: '='},
templateUrl: 'korv.html'
};
})
.directive('korv', [ '$tooltip', function ($tooltip) {
return $tooltip('korv', 'korv', 'click');
}]);
and the the template:
<script type="text/ng-template" id="korv.html">
<div class="tooltip {{ placement }}" ng-class="{ in: isOpen(), fade: animation() }">
<div class="tooltip-arrow"></div>
<div class="tooltip-inner">obj is {{content}} obj.a is {{content.a}}</div>
</div>
and in the view:
<li korv="{a:1234}">
outputs:
obj is {a:1234} obj.a is
So the object I pass converts to a json string and I can not access its fields. Using tooltipHtmlUnsafe is not an option here.
I tried changing content: '#' to content: '=' but that doesn't work.
So how can I pass an object to tooltip?
This is not possible due to the implementation of angular bootstrap ui tooltip. My solution was to create a new directive:
angular.module('app').directive('speciesInfo', function ($log, $timeout) {
return {
restrict: 'A', // only activate on element attribute
scope: {
species: "=speciesInfo"
},
link: function (scope, elem, attrs) {
var showPromise;
elem.on('mouseenter', function () {
showPromise = $timeout(function () {
elem.children('.popover').show();
}, 500);
});
elem.on('mouseleave', function () {
$timeout.cancel(showPromise);
elem.children('.popover').hide();
});
},
templateUrl: 'species-info.html'
}
});
now it is easy to style the tooltip:
<div class="popover right in fade">
<div class="arrow"></div>
<div class="popover-inner">
<div class="popover-title text-center">
{{species.vernacularName}} <img class="small-species" ng-src="{{species.iconFileName}}"/>
</div>
<div class="popover-content">
<em> {{species.scientificName}}</em>
</div>
</div>

How to modify scope from within a directive in AngularJs

I need to modify a root scope attribute from within a callback inside a directive. But the directive is in a inner scope created by a switch directive.
HTML
<div ng-app="app" ng-controller='AppController'>
<p>Selected: {{ selected }}</p>
<div ng-switch on="selected">
<div ng-switch-default>
<p>Item: {{ selected }}</p>
<custom-tag selected-item="selected" />
</div>
<div ng-switch-when="New value">
<p>Worked</p>
</div>
</div>
</div>
JavaScript
angular.module('app', [])
.directive("customTag", [function () {
return {
restrict: "E",
replace: true,
template: "<input type='button' value='Click me' />",
link: function (scope, element, attrs) {
element.bind('click', function () {
scope[attrs.selectedItem] = "New value";
scope.$apply();
});
}
};
}]);
function AppController($scope) {
$scope.selected = 'Old value';
}
Fiddle: http://jsfiddle.net/nJ7FQ/
My objective is to be able to display "New value" in the Selected area.
How can I accomplish what I am trying to do? What am I doing wrong?
Besides, as I am trying to make a component. Is there a way to do the same but with an isolated scope?
I updated the fiddle, basically had to go to the parent to get the right "selected" variable, also used the isolate scope = to get two way binding between the value passed in and the internal model.
http://jsfiddle.net/nJ7FQ/2/
angular.module('app', [])
.directive("customTag", [function () {
return {
restrict: "E",
replace: true,
template: "<input type='button' value='Click me' />",
scope: {model:'='},
link: function (scope, element, attrs) {
element.bind('click', function () {
scope.model[attrs.selectedItem] = "New value";
scope.$apply();
});
}
};
}]);
function AppController($scope) {
$scope.selected = 'Old value';
}
and the HTML
<div ng-app="app" ng-controller='AppController'>
<p>Selected: {{ selected }}</p>
<div ng-switch on="selected">
<div ng-switch-default>
<p>Item: {{ selected }}</p>
<custom-tag selected-item="selected" model="$parent" />
</div>
<div ng-switch-when="New value">
<p>Worked</p>
</div>
</div>
</div>
Updated the fiddle to use your original reading of the property from the attribute:
http://jsfiddle.net/nJ7FQ/4/
I improved the jsfiddle a bit:
angular.module('app', [])
.directive("customTag", ['$parse', function ($parse) {
return {
restrict: "E",
replace: true,
template: "<input type='button' value='Click me' />",
link: function (scope, element, attrs) {
element.bind('click', function () {
scope.$apply(function () {
$parse(attrs.selectedItem).assign(scope.$parent, "New value");
});
});
}
};
}]);
function AppController($scope) {
$scope.selected = { 'foo': 'Old value' };
}
http://jsfiddle.net/nJ7FQ/15/
This way, the scope value, you want to change can also be an object property like selected.foo in the example. Also, I removed the scope parameter and told the directive to always use the parent scope. And finally I wrapped the click handler into the $apply callback (see here for example). Better would be, of course, to use ngClick instead of the element.bind().

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