Using Angular Material - How can we link a personalized directive attribute to the md-list-item component?

Question

Using Angular Material - How can we link a personalized directive attribute to the md-list-item component?

When trying to connect a custom directive to items in an ng-repeat list generated with md-list/md-list-items, I encountered a challenge due to the way angular material organizes the md-list-item element when it's rendered in the DOM. This includes nesting an absolutely positioned button inside for ng-click functionality, making it difficult to directly attach the directive attribute as I would with a regular md-button or similar element.

The directive works well on other elements but attempting to add it directly to the md-list-item proved to be unsuccessful.

You can see this issue demonstrated in JSFiddle: http://jsfiddle.net/2f6qscrp/513/.

Here is the HTML snippet:

<md-list-item view-employee employee="employee" ng-click="viewEmployee($index)" ng-repeat="employee in main.employees">

javascript angularjs angularjs-directive angularjs-material

Answer 1

Answer №1

To ensure the functionality, simply attach the event listener to the button tag as shown below:

angular.module('app').directive('viewEmployee', function() {
    return {
        restrict: 'A',
        scope: {
            employee: '='
        },
        link: function(scope, element, attrs) {
            element.find('button').bind('click', function(index, employee) {
                alert('viewEmployee(): ' + scope.employee.forename + ' ' + scope.employee.surname);
            })
        }
    }
})

Furthermore, I have made enhancements to your fiddle for better performance.

http://jsfiddle.net/2f6qscrp/514/

Answer 2

To ensure the functionality, simply attach the event listener to the button tag as shown below:

angular.module('app').directive('viewEmployee', function() {
    return {
        restrict: 'A',
        scope: {
            employee: '='
        },
        link: function(scope, element, attrs) {
            element.find('button').bind('click', function(index, employee) {
                alert('viewEmployee(): ' + scope.employee.forename + ' ' + scope.employee.surname);
            })
        }
    }
})

Furthermore, I have made enhancements to your fiddle for better performance.

http://jsfiddle.net/2f6qscrp/514/

Answer 3

Answer №2

<md-list-item view-employee employee="employee"
              ng-click="viewEmployee($index)"
              ng-repeat="employee in main.employees">

    <b>{{employee.id}}</b>

    <span>{{employee.forename}} {{employee.surname}}</span>

</md-list-item>

Adjust the priority level to ensure that the directive is executed after the md-list-item directive:

angular.module('app').directive('viewEmployee', function() {
    return {
        priority: 10,
        restrict: 'A',
        scope: {
            employee: '='
        },
        link: function(scope, element, attrs) {
            element.bind('click', function(index, employee) {
                console.log('viewEmployee(): ' + scope.employee.forename
                             + ' ' + scope.employee.surname);
            })
        }
    }
})

When the md-list-item directive eliminates click handlers from the element, adjusting the priority of the view-employee directive to run postLink after the postLink of md-list-item ensures that the click handler remains intact and the directive functions as intended.

For a demonstration, visit the DEMO on JSFiddle.

Answer 4

<md-list-item view-employee employee="employee"
              ng-click="viewEmployee($index)"
              ng-repeat="employee in main.employees">

    <b>{{employee.id}}</b>

    <span>{{employee.forename}} {{employee.surname}}</span>

</md-list-item>

Adjust the priority level to ensure that the directive is executed after the md-list-item directive:

angular.module('app').directive('viewEmployee', function() {
    return {
        priority: 10,
        restrict: 'A',
        scope: {
            employee: '='
        },
        link: function(scope, element, attrs) {
            element.bind('click', function(index, employee) {
                console.log('viewEmployee(): ' + scope.employee.forename
                             + ' ' + scope.employee.surname);
            })
        }
    }
})

When the md-list-item directive eliminates click handlers from the element, adjusting the priority of the view-employee directive to run postLink after the postLink of md-list-item ensures that the click handler remains intact and the directive functions as intended.

For a demonstration, visit the DEMO on JSFiddle.

Using Angular Material - How can we link a personalized directive attribute to the md-list-item component?

Answer №1

Answer №2

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