Mobile Angular UI - Touch Events

To work with Touch and its events you need to add the following module −
mobile-angular-ui.gestures

If you are just interested in the touch module, then you can add only mobile-angular-ui.gestures.touch.
$touch is a service available with touch module. It will work on any input devices you want to work with. It gives details like movement, duration, velocity, direction, etc.
The following are the available methods in $touch −
Let us take a look at the bind method.
Syntax
$touch.bind(element, eventHandlers, [options])

Parameters
element − html element you want to deal with touch details.
eventHandlers − An object with handlers for specific touch events. The eventHandlers available are −
start − it's a callback for touchstart event.
start − it's a callback for touchstart event.
end − it’s a callback event for touchend.
end − it’s a callback event for touchend.
move − it’s a callback for touchmove event.
move − it’s a callback for touchmove event.
cancel − it’s a callback for touchcancel event.
cancel − it’s a callback for touchcancel event.
options − It is an object that can have details as follows −
movementThreshold − An integer value. The number of pixels of movement before start to trigger touchmove handlers.
movementThreshold − An integer value. The number of pixels of movement before start to trigger touchmove handlers.
valid − Its a function that returns a boolean value that decides if a touch should be handled or ignored.
valid − Its a function that returns a boolean value that decides if a touch should be handled or ignored.
sensitiveArea − It can be a function, or element or BoundingClientRect. Sensitive area defines boundaries to release touch when movement is outside.
sensitiveArea − It can be a function, or element or BoundingClientRect. Sensitive area defines boundaries to release touch when movement is outside.
pointerTypes − It is an array of pointer that has keys which are a subset of default pointer events map.
pointerTypes − It is an array of pointer that has keys which are a subset of default pointer events map.
The following are the types available in $touch −
Here is a working example showing the touch types.
index.html
<!DOCTYPE html>
<html>
   <head>
      <meta charset="utf-8" />
      <title>Mobile Angular UI Demo</title>
      <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
      <meta name="apple-mobile-web-app-capable" content="yes" />
      <meta name="viewport" content="user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimal-ui" />
      <meta name="apple-mobile-web-app-status-bar-style" content="yes" />
      <link rel="shortcut icon" href="/assets/img/favicon.png" type="image/x-icon" />
      <link rel="stylesheet" href="node_modules/mobile-angular-ui/dist/css/mobile-angular-ui-hover.min.css" />
      <link rel="stylesheet" href="node_modules/mobile-angular-ui/dist/css/mobile-angular-ui-base.min.css" />
      <link rel="stylesheet" href="node_modules/mobile-angular-ui/dist/css/mobile-angular-ui-desktop.min.css" />
      <script src="node_modules/angular/angular.min.js"></script>
      <script src="node_modules/angular-route/angular-route.min.js"></script>
      <script src="node_modules/mobile-angular-ui/dist/js/mobile-angular-ui.min.js"></script>
      <script src="node_modules/angular-route/angular-route.min.js"></script>
      <script src="node_modules/mobile-angular-ui/dist/js/mobile-angular-ui.gestures.min.js"></script>
      <link rel="stylesheet" href="src/css/app.css" />
      <script src="src/js/app.js"></script>
      <style>
         a.active {
            color: blue;
         }
      </style>
   </head>

   <body ng-app="myFirstApp" ng-controller="MainController" class="listening">
      
      <!-- Sidebars -->
      <div class="sidebar sidebar-left ">
         <div class="scrollable">
            <h1 class="scrollable-header app-name">Tutorials</h1>
            <div class="scrollable-content">
               <div class="list-group" ui-turn-off='uiSidebarLeft'>
                  <a class="list-group-item" href="/">Home Page </a>
                  <a class="list-group-item" href="#/academic"><i class ="fa fa-caret-right"></i>Academic Tutorials </a>
                  <a class="list-group-item" href="#/bigdata"><i class ="fa fa-caret-right"></i>Big Data & Analytics </a>
                  <a class="list-group-item" href="#/computerProg"><i class="fa fa-caret-right"></i>Computer Programming </a>
                  <a class="list-group-item" href="#/computerscience"><i class="fa fa-caret-right"></i>Computer Science </a>
                  <a class="list-group-item" href="#/databases"><i class="fa fa-caret-right"></i>Databases </a>
                  <a class="list-group-item" href="#/devops"><i class="fa fa-caret-right"></i>DevOps </a>
               </div>
            </div>
         </div>
      </div>
      <div class="sidebar sidebar-right">
         <div class="scrollable">
            <h1 class="scrollable-header app-name">eBooks</h1>
            <div class="scrollable-content">
               <div class="list-group" ui-toggle="uiSidebarRight">
                  <a class="list-group-item" href="#/php"><i class="fa fa-caret-right"></i>PHP </a>
                  <a class="list-group-item" href="#/Javascript"><i class="fa fa-caret-right"></i>Javascript </a>
               </div>
            </div>
         </div>
      </div>
      <div class="app">
         <div class="navbar navbar-app navbar-absolute-top">
            <div class="navbar-brand navbar-brand-center" ui-yield-to="title">
               TutorialsPoint
            </div>
            <div class="btn-group pull-left">
               <div ui-toggle="uiSidebarLeft" class="btn sidebar-left-toggle">
                  <i class="fa fa-th-large "></i> Tutorials
               </div>
            </div>
            <div class="btn-group pull-right" ui-yield-to="navbarAction">
               <div ui-toggle="uiSidebarRight" class="btn sidebar-right-toggle">
                  <i class="fal fa-search"></i> eBooks
               </div>
            </div>
         </div>
         <div class="navbar navbar-app navbar-absolute-bottom">
            <div class="btn-group justified">
               <a ui-turn-on="aboutus_modal" class="btn btn-navbar"><i class="fal fa-globe"></i> About us</a>
               <a ui-turn-on="contactus_overlay" class="btn btn-navbar"><i class="fal fa-map-marker-alt"></i> Contact us</a>
            </div>
         </div>

         <!-- App body -->
         <div class='app-body'>
            <div class='app-content'>
               <ng-view></ng-view>
            </div>
         </div>
      </div><!-- ~ .app -->
      
      <!-- Modals and Overlays -->
      <div ui-yield-to="modals"></div>
   </body>
</html>
There is touchtest directive added in app.js that makes use of the $touch.bind method.
directive('touchtest', ['$touch', function($touch) {
   return {
      restrict: 'C',
      link: function($scope, elem) {
         $scope.touch=null;
         $touch.bind(elem, {
            start: function(touch) {
               $scope.containerRect=elem[0].getBoundingClientRect();
               $scope.touch=touch;
               $scope.$apply();
            },
            cancel: function(touch) {
               $scope.touch=touch;
               $scope.$apply();
            },
            move: function(touch) {
               $scope.touch=touch;
               $scope.$apply();
            },
            end: function(touch) {
               $scope.touch=touch;
               $scope.$apply();
            }
         });
      }
   };
}]);
The complete code inside app.js is as follows −
/* eslint no-alert: 0 */

'use strict';
//
// Here is how to define your module
// has dependent on mobile-angular-ui
//
var app=angular.module('myFirstApp', ['ngRoute',
   'mobile-angular-ui',
   'mobile-angular-ui.gestures',
]);
app.config(function($routeProvider, $locationProvider) {
   $routeProvider
   .when("/", {
      templateUrl : "src/home/home.html"
   });
   $locationProvider.html5Mode({enabled:true, requireBase:false});
});
app.directive('touchtest', ['$touch', function($touch) {
   return {
      restrict: 'C',
      link: function($scope, elem) {
         $scope.touch=null;
         $touch.bind(elem, {
            start: function(touch) {
               $scope.containerRect=elem[0].getBoundingClientRect();
               $scope.touch=touch;
               $scope.$apply();
            },
            cancel: function(touch) {
               $scope.touch=touch;
               $scope.$apply();
            },
            move: function(touch) {
               $scope.touch=touch;
               $scope.$apply();
            },
            end: function(touch) {
               $scope.touch=touch;
               $scope.$apply();
            }
         });
      }
   };
}]);
app.controller('MainController', function($rootScope, $scope, $routeParams) {
   $scope.msg="Welcome to TutorialsPoint!";
});
src/home/home.html
The directive touchtest is used inside the html as shown below −
<div class="section touchtest">
   <h4>Touch Around on the screen to see the values changing</h4>
   <div>
      <p>type: {{touch.type}}</p>
      <p>direction: {{touch.direction == null ? '-' : touch.direction}}</p>
      <p>point: [{{touch.x}}, {{touch.y}}]</p>
      <p>step: {{touch.step}} [{{touch.stepX}}, {{touch.stepY}}]</p>
      <p>distance: {{touch.distance}} [{{touch.distanceX}}, {{touch.distanceY}}]</p>
      <p>total: {{touch.total}} [{{touch.totalX}}, {{touch.totalY}}]</p>
      <p>velocity: {{touch.velocity}} px/sec</p>
      <p>averageVelocity: {{touch.averageVelocity}} px/sec</p>
      <p>angle: {{touch.angle == null ? '-' : touch.angle}} deg</p>
   </div>
</div>
Now let us test the display in the browser. The resultant screen is as follows −

    28 Lectures 
     3 hours 

 Asif Hussain

    19 Lectures 
     5.5 hours 

 Eduonix Learning Solutions

    30 Lectures 
     3.5 hours 

 Abhilash Nelson

    16 Lectures 
     2.5 hours 

 Frahaan Hussain

    62 Lectures 
     4.5 hours 

 Senol Atac

    22 Lectures 
     3 hours 

 Sandip Bhattacharya
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