Pressing the space bar invokes an href using AngularJS (ui-router)

Question

Pressing the space bar invokes an href using AngularJS (ui-router)

How can I handle the space bar key event in Angular? Here are some possible solutions:

ng-keyup="$event.keyCode == 32 ? '/settings' : null" 
ng-keyup="$event.keyCode == 32 ? '#/settings' : null" 
ng-keyup="$event.keyCode == 32 ? $eval('/settings') : null" 
ng-keyup="$event.keyCode == 32 ? $eval('#/settings') : null" 
ng-keyup="$event.keyCode == 32 ? $eval(/settings) : null" 
ng-keyup="$event.keyCode == 32 ? go('/settings') : null" 
ng-keyup="$event.keyCode == 32 ? go('#/settings') : null" 
ng-keyup="$event.keyCode == 32 ? go(#/settings) : null" 
ng-keyup="$event.keyCode == 32 ? $location.path('/settings') : null" 
ng-keyup="$event.keyCode == 32 ? $location.path('#/settings') : null" 
ng-keyup="$event.keyCode == 32 ? javascript:angular.element(document.getElementById('MainController')).scope().go('#/settings') : null" 
ng-keyup="$event.keyCode == 32 ? javascript:angular.element(document.getElementById('MainController')).scope().go('#/settings') : null"

In my project using AngularJS, Bootstrap, and FontAwesome, ui-router is responsible for handling main menu links. An example of such a link:

<li role="presentation">
  <a id="settings-tab" ui-sref="settings" tabindex="2" role="tab"
    ng-keyup="$event.keyCode == 32 ? go('/settings') : null" 
  <span class="fa fa-cog fa-fw"></span>Settings</a>
</li>

When using ui-router, the ui-sref="settings" attribute translates to href="/settings"

javascript angularjs hyperlink angular-ui-router

Answer 1

Answer №1

Develop a function that requires input defining the specific destination.

<a ui-sref="settings" ng-keypress="goToOnSpace($event, 'settings')">My link</a>

In the controller, evaluate the key input and set the target location:

$scope.goToOnSpace = function (e, locationToGo) {
    if (event.keyCode === 32 || event.charCode === 32) {
        // Additional logic to determine destination based on parameters
        if(locationToGo === "home"){
            window.location.href = '/#/';
        } else {
            window.location.href = '/#/' + locationToGo;
        }
    }
};

Utilizing ui-router for normal cursor clicks is still possible, but incorporating an extra function may be beneficial for handling spacebar presses as navigation triggers.

Answer 2

Develop a function that requires input defining the specific destination.

<a ui-sref="settings" ng-keypress="goToOnSpace($event, 'settings')">My link</a>

In the controller, evaluate the key input and set the target location:

$scope.goToOnSpace = function (e, locationToGo) {
    if (event.keyCode === 32 || event.charCode === 32) {
        // Additional logic to determine destination based on parameters
        if(locationToGo === "home"){
            window.location.href = '/#/';
        } else {
            window.location.href = '/#/' + locationToGo;
        }
    }
};

Utilizing ui-router for normal cursor clicks is still possible, but incorporating an extra function may be beneficial for handling spacebar presses as navigation triggers.

Answer 3

Answer №2

Upon further examination, it seems that the solution, specifically focused on UI-Router, involves:

1) placing ui-router $state on $rootScope inside AngularJS .run 2) creating a function in the AngularJS .controller to call UI-Router $state.go(locationToGo) 3) incorporating $stateNotFound error handling for debugging

angular
  .module('MainApp', [
    'ui.bootstrap',
    'ui.utils',
    'ui.router'
  ])
  .config(function($stateProvider, $urlRouterProvider) {
    'use strict';

    $stateProvider
      .state('home', {
        url: "/",
        templateUrl: 'home/home.html'
      })
      .state('settings', {
        url: "/settings",
        templateUrl: 'settings/settings.html'
      });

    $urlRouterProvider.when('', '/');
    $urlRouterProvider.otherwise("/error?code=404");
  })
  .run(function($rootScope, $state, $stateParams, $log) {
    'use strict';

    $state.transitionTo('home');
    
    $rootScope.$state = $state;
    $rootScope.$stateParams = $stateParams;

    $rootScope.$on('$stateNotFound', 
      function(event, unfoundState, fromState, fromParams) {
        $log.log(unfoundState.to); 
        $log.log(unfoundState.toParams); 
        $log.log(unfoundState.options); 
      $state.go("error?code=404");
    });
  })
  .controller('MainController', function ($scope, $state, $log) {
    'use strict';

    $scope.goToOnSpace = function (event, locationToGo) {
      if (event.keyCode === 32) {
        $log.log(locationToGo);
        $state.go(locationToGo);
      }
    };
});

The HTML snippet is as follows:

<li role="presentation">
  <a id="settings-item" ui-sref="settings" tabindex="-1" 
     data-ng-Keypress="goToOnSpace($event, 'settings')" 
     role="menuitem">&nbsp;&nbsp;Settings</a>
</li>

Answer 4

Upon further examination, it seems that the solution, specifically focused on UI-Router, involves:

1) placing ui-router $state on $rootScope inside AngularJS .run 2) creating a function in the AngularJS .controller to call UI-Router $state.go(locationToGo) 3) incorporating $stateNotFound error handling for debugging

angular
  .module('MainApp', [
    'ui.bootstrap',
    'ui.utils',
    'ui.router'
  ])
  .config(function($stateProvider, $urlRouterProvider) {
    'use strict';

    $stateProvider
      .state('home', {
        url: "/",
        templateUrl: 'home/home.html'
      })
      .state('settings', {
        url: "/settings",
        templateUrl: 'settings/settings.html'
      });

    $urlRouterProvider.when('', '/');
    $urlRouterProvider.otherwise("/error?code=404");
  })
  .run(function($rootScope, $state, $stateParams, $log) {
    'use strict';

    $state.transitionTo('home');
    
    $rootScope.$state = $state;
    $rootScope.$stateParams = $stateParams;

    $rootScope.$on('$stateNotFound', 
      function(event, unfoundState, fromState, fromParams) {
        $log.log(unfoundState.to); 
        $log.log(unfoundState.toParams); 
        $log.log(unfoundState.options); 
      $state.go("error?code=404");
    });
  })
  .controller('MainController', function ($scope, $state, $log) {
    'use strict';

    $scope.goToOnSpace = function (event, locationToGo) {
      if (event.keyCode === 32) {
        $log.log(locationToGo);
        $state.go(locationToGo);
      }
    };
});

The HTML snippet is as follows:

<li role="presentation">
  <a id="settings-item" ui-sref="settings" tabindex="-1" 
     data-ng-Keypress="goToOnSpace($event, 'settings')" 
     role="menuitem">&nbsp;&nbsp;Settings</a>
</li>

Pressing the space bar invokes an href using AngularJS (ui-router)

Answer №1

Answer №2

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