In AngularJS, the ui-tab directive (ui-bootstrap's tabset) provides a way to create tab-based navigation, but it does not include built-in support for tracking dirty flags or handling the deselect event. However, you can implement this behavior by utilizing AngularJS's features.

Here's an example of how you can implement dirty flag tracking and handle the deselect event in a tab using AngularJS:

HTML:

html
<div ng-controller="TabController"> <uib-tabset> <uib-tab ng-repeat="tab in tabs" heading="{{tab.title}}" select="onTabSelect(tab)" deselect="onTabDeselect(tab)" active="tab.active" disabled="tab.disabled"> <!-- Your tab content goes here --> <div ng-if="tab.active"> <input type="text" ng-model="tab.content" ng-change="onTabContentChange(tab)"> </div> </uib-tab> </uib-tabset> </div>

JavaScript:

javascript
angular.module('myApp', ['ui.bootstrap']) .controller('TabController', function($scope) { $scope.tabs = [ { title: 'Tab 1', content: 'Tab 1 content', active: true, dirty: false }, { title: 'Tab 2', content: 'Tab 2 content', active: false, dirty: false }, { title: 'Tab 3', content: 'Tab 3 content', active: false, dirty: false } // Add more tabs as needed ]; $scope.onTabSelect = function(tab) { tab.dirty = false; // Reset the dirty flag when the tab is selected }; $scope.onTabDeselect = function(tab) { if (tab.dirty) { // Handle the deselect event here or prompt the user to save changes // For demonstration purposes, we are simply alerting the user. alert('You have unsaved changes in ' + tab.title + '.'); } }; $scope.onTabContentChange = function(tab) { if (!tab.dirty) { tab.dirty = true; // Set the dirty flag when the tab content changes } }; });

In this example, we are using AngularJS's $scope to track the tabs array, which holds information about each tab, including the active status and dirty flag. The select and deselect attributes are used to trigger the onTabSelect and onTabDeselect functions, respectively.

When a tab is selected (select event), we reset its dirty flag to false, indicating that the tab content is clean. When a tab is deselected (deselect event), we check the dirty flag and handle the event accordingly. In this example, we simply alert the user that there are unsaved changes in the tab with unsaved content. You can customize the onTabDeselect function to handle the deselection event based on your application's requirements (e.g., prompt the user to save changes, etc.).

Additionally, we have a ng-change directive on the input element within the tab content. When the tab content changes, the onTabContentChange function is called, and we set the dirty flag to true, indicating that the tab content is now dirty.

By implementing this logic, you can track the dirty flag and handle the deselect event in AngularJS's ui-tab directive (ui-bootstrap's tabset) or any similar tab-based navigation in your application.

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