gh-pages v4.10.1

Author: marcelo-portugal

docs/grunt-scripts/angular-animate.js

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+/**
+ * @license AngularJS v1.8.2
+ * (c) 2010-2020 Google LLC. http://angularjs.org
+ * License: MIT
+ */
+(function(window, angular) {'use strict';
+
+/**
+ * @ngdoc module
+ * @name ngTouch
+ * @description
+ *
+ * The `ngTouch` module provides helpers for touch-enabled devices.
+ * The implementation is based on jQuery Mobile touch event handling
+ * ([jquerymobile.com](http://jquerymobile.com/)). *
+ *
+ * See {@link ngTouch.$swipe `$swipe`} for usage.
+ *
+ * @deprecated
+ * sinceVersion="1.7.0"
+ * The ngTouch module with the {@link ngTouch.$swipe `$swipe`} service and
+ * the {@link ngTouch.ngSwipeLeft} and {@link ngTouch.ngSwipeRight} directives are
+ * deprecated. Instead, stand-alone libraries for touch handling and gesture interaction
+ * should be used, for example [HammerJS](https://hammerjs.github.io/) (which is also used by
+ * Angular).
+ */
+
+// define ngTouch module
+/* global ngTouch */
+var ngTouch = angular.module('ngTouch', []);
+
+ngTouch.info({ angularVersion: '1.8.2' });
+
+function nodeName_(element) {
+  return angular.$$lowercase(element.nodeName || (element[0] && element[0].nodeName));
+}
+
+/* global ngTouch: false */
+
+    /**
+     * @ngdoc service
+     * @name $swipe
+     *
+     * @deprecated
+     * sinceVersion="1.7.0"
+     *
+     * See the {@link ngTouch module} documentation for more information.
+     *
+     * @description
+     * The `$swipe` service is a service that abstracts the messier details of hold-and-drag swipe
+     * behavior, to make implementing swipe-related directives more convenient.
+     *
+     * Requires the {@link ngTouch `ngTouch`} module to be installed.
+     *
+     * `$swipe` is used by the `ngSwipeLeft` and `ngSwipeRight` directives in `ngTouch`.
+     *
+     * # Usage
+     * The `$swipe` service is an object with a single method: `bind`. `bind` takes an element
+     * which is to be watched for swipes, and an object with four handler functions. See the
+     * documentation for `bind` below.
+     */
+
+ngTouch.factory('$swipe', [function() {
+  // The total distance in any direction before we make the call on swipe vs. scroll.
+  var MOVE_BUFFER_RADIUS = 10;
+
+  var POINTER_EVENTS = {
+    'mouse': {
+      start: 'mousedown',
+      move: 'mousemove',
+      end: 'mouseup'
+    },
+    'touch': {
+      start: 'touchstart',
+      move: 'touchmove',
+      end: 'touchend',
+      cancel: 'touchcancel'
+    },
+    'pointer': {
+      start: 'pointerdown',
+      move: 'pointermove',
+      end: 'pointerup',
+      cancel: 'pointercancel'
+    }
+  };
+
+  function getCoordinates(event) {
+    var originalEvent = event.originalEvent || event;
+    var touches = originalEvent.touches && originalEvent.touches.length ? originalEvent.touches : [originalEvent];
+    var e = (originalEvent.changedTouches && originalEvent.changedTouches[0]) || touches[0];
+
+    return {
+      x: e.clientX,
+      y: e.clientY
+    };
+  }
+
+  function getEvents(pointerTypes, eventType) {
+    var res = [];
+    angular.forEach(pointerTypes, function(pointerType) {
+      var eventName = POINTER_EVENTS[pointerType][eventType];
+      if (eventName) {
+        res.push(eventName);
+      }
+    });
+    return res.join(' ');
+  }
+
+  return {
+    /**
+     * @ngdoc method
+     * @name $swipe#bind
+     *
+     * @description
+     * The main method of `$swipe`. It takes an element to be watched for swipe motions, and an
+     * object containing event handlers.
+     * The pointer types that should be used can be specified via the optional
+     * third argument, which is an array of strings `'mouse'`, `'touch'` and `'pointer'`. By default,
+     * `$swipe` will listen for `mouse`, `touch` and `pointer` events.
+     *
+     * The four events are `start`, `move`, `end`, and `cancel`. `start`, `move`, and `end`
+     * receive as a parameter a coordinates object of the form `{ x: 150, y: 310 }` and the raw
+     * `event`. `cancel` receives the raw `event` as its single parameter.
+     *
+     * `start` is called on either `mousedown`, `touchstart` or `pointerdown`. After this event, `$swipe` is
+     * watching for `touchmove`, `mousemove` or `pointermove` events. These events are ignored until the total
+     * distance moved in either dimension exceeds a small threshold.
+     *
+     * Once this threshold is exceeded, either the horizontal or vertical delta is greater.
+     * - If the horizontal distance is greater, this is a swipe and `move` and `end` events follow.
+     * - If the vertical distance is greater, this is a scroll, and we let the browser take over.
+     *   A `cancel` event is sent.
+     *
+     * `move` is called on `mousemove`, `touchmove` and `pointermove` after the above logic has determined that
+     * a swipe is in progress.
+     *
+     * `end` is called when a swipe is successfully completed with a `touchend`, `mouseup` or `pointerup`.
+     *
+     * `cancel` is called either on a `touchcancel` or `pointercancel`  from the browser, or when we begin scrolling
+     * as described above.
+     *
+     */
+    bind: function(element, eventHandlers, pointerTypes) {
+      // Absolute total movement, used to control swipe vs. scroll.
+      var totalX, totalY;
+      // Coordinates of the start position.
+      var startCoords;
+      // Last event's position.
+      var lastPos;
+      // Whether a swipe is active.
+      var active = false;
+
+      pointerTypes = pointerTypes || ['mouse', 'touch', 'pointer'];
+      element.on(getEvents(pointerTypes, 'start'), function(event) {
+        startCoords = getCoordinates(event);
+        active = true;
+        totalX = 0;
+        totalY = 0;
+        lastPos = startCoords;
+        if (eventHandlers['start']) {
+          eventHandlers['start'](startCoords, event);
+        }
+      });
+      var events = getEvents(pointerTypes, 'cancel');
+      if (events) {
+        element.on(events, function(event) {
+          active = false;
+          if (eventHandlers['cancel']) {
+            eventHandlers['cancel'](event);
+          }
+        });
+      }
+
+      element.on(getEvents(pointerTypes, 'move'), function(event) {
+        if (!active) return;
+
+        // Android will send a touchcancel if it thinks we're starting to scroll.
+        // So when the total distance (+ or - or both) exceeds 10px in either direction,
+        // we either:
+        // - On totalX > totalY, we send preventDefault() and treat this as a swipe.
+        // - On totalY > totalX, we let the browser handle it as a scroll.
+
+        if (!startCoords) return;
+        var coords = getCoordinates(event);
+
+        totalX += Math.abs(coords.x - lastPos.x);
+        totalY += Math.abs(coords.y - lastPos.y);
+
+        lastPos = coords;
+
+        if (totalX < MOVE_BUFFER_RADIUS && totalY < MOVE_BUFFER_RADIUS) {
+          return;
+        }
+
+        // One of totalX or totalY has exceeded the buffer, so decide on swipe vs. scroll.
+        if (totalY > totalX) {
+          // Allow native scrolling to take over.
+          active = false;
+          if (eventHandlers['cancel']) {
+            eventHandlers['cancel'](event);
+          }
+          return;
+        } else {
+          // Prevent the browser from scrolling.
+          event.preventDefault();
+          if (eventHandlers['move']) {
+            eventHandlers['move'](coords, event);
+          }
+        }
+      });
+
+      element.on(getEvents(pointerTypes, 'end'), function(event) {
+        if (!active) return;
+        active = false;
+        if (eventHandlers['end']) {
+          eventHandlers['end'](getCoordinates(event), event);
+        }
+      });
+    }
+  };
+}]);
+
+/* global ngTouch: false */
+
+/**
+ * @ngdoc directive
+ * @name ngSwipeLeft
+ *
+ * @deprecated
+ * sinceVersion="1.7.0"
+ *
+ * See the {@link ngTouch module} documentation for more information.
+ *
+ * @description
+ * Specify custom behavior when an element is swiped to the left on a touchscreen device.
+ * A leftward swipe is a quick, right-to-left slide of the finger.
+ * Though ngSwipeLeft is designed for touch-based devices, it will work with a mouse click and drag
+ * too.
+ *
+ * To disable the mouse click and drag functionality, add `ng-swipe-disable-mouse` to
+ * the `ng-swipe-left` or `ng-swipe-right` DOM Element.
+ *
+ * Requires the {@link ngTouch `ngTouch`} module to be installed.
+ *
+ * @element ANY
+ * @param {expression} ngSwipeLeft {@link guide/expression Expression} to evaluate
+ * upon left swipe. (Event object is available as `$event`)
+ *
+ * @example
+    <example module="ngSwipeLeftExample" deps="angular-touch.js" name="ng-swipe-left">
+      <file name="index.html">
+        <div ng-show="!showActions" ng-swipe-left="showActions = true">
+          Some list content, like an email in the inbox
+        </div>
+        <div ng-show="showActions" ng-swipe-right="showActions = false">
+          <button ng-click="reply()">Reply</button>
+          <button ng-click="delete()">Delete</button>
+        </div>
+      </file>
+      <file name="script.js">
+        angular.module('ngSwipeLeftExample', ['ngTouch']);
+      </file>
+    </example>
+ */
+
+/**
+ * @ngdoc directive
+ * @name ngSwipeRight
+ *
+ * @deprecated
+ * sinceVersion="1.7.0"
+ *
+ * See the {@link ngTouch module} documentation for more information.
+ *
+ * @description
+ * Specify custom behavior when an element is swiped to the right on a touchscreen device.
+ * A rightward swipe is a quick, left-to-right slide of the finger.
+ * Though ngSwipeRight is designed for touch-based devices, it will work with a mouse click and drag
+ * too.
+ *
+ * Requires the {@link ngTouch `ngTouch`} module to be installed.
+ *
+ * @element ANY
+ * @param {expression} ngSwipeRight {@link guide/expression Expression} to evaluate
+ * upon right swipe. (Event object is available as `$event`)
+ *
+ * @example
+    <example module="ngSwipeRightExample" deps="angular-touch.js" name="ng-swipe-right">
+      <file name="index.html">
+        <div ng-show="!showActions" ng-swipe-left="showActions = true">
+          Some list content, like an email in the inbox
+        </div>
+        <div ng-show="showActions" ng-swipe-right="showActions = false">
+          <button ng-click="reply()">Reply</button>
+          <button ng-click="delete()">Delete</button>
+        </div>
+      </file>
+      <file name="script.js">
+        angular.module('ngSwipeRightExample', ['ngTouch']);
+      </file>
+    </example>
+ */
+
+function makeSwipeDirective(directiveName, direction, eventName) {
+  ngTouch.directive(directiveName, ['$parse', '$swipe', function($parse, $swipe) {
+    // The maximum vertical delta for a swipe should be less than 75px.
+    var MAX_VERTICAL_DISTANCE = 75;
+    // Vertical distance should not be more than a fraction of the horizontal distance.
+    var MAX_VERTICAL_RATIO = 0.3;
+    // At least a 30px lateral motion is necessary for a swipe.
+    var MIN_HORIZONTAL_DISTANCE = 30;
+
+    return function(scope, element, attr) {
+      var swipeHandler = $parse(attr[directiveName]);
+
+      var startCoords, valid;
+
+      function validSwipe(coords) {
+        // Check that it's within the coordinates.
+        // Absolute vertical distance must be within tolerances.
+        // Horizontal distance, we take the current X - the starting X.
+        // This is negative for leftward swipes and positive for rightward swipes.
+        // After multiplying by the direction (-1 for left, +1 for right), legal swipes
+        // (ie. same direction as the directive wants) will have a positive delta and
+        // illegal ones a negative delta.
+        // Therefore this delta must be positive, and larger than the minimum.
+        if (!startCoords) return false;
+        var deltaY = Math.abs(coords.y - startCoords.y);
+        var deltaX = (coords.x - startCoords.x) * direction;
+        return valid && // Short circuit for already-invalidated swipes.
+            deltaY < MAX_VERTICAL_DISTANCE &&
+            deltaX > 0 &&
+            deltaX > MIN_HORIZONTAL_DISTANCE &&
+            deltaY / deltaX < MAX_VERTICAL_RATIO;
+      }
+
+      var pointerTypes = ['touch'];
+      if (!angular.isDefined(attr['ngSwipeDisableMouse'])) {
+        pointerTypes.push('mouse');
+      }
+      $swipe.bind(element, {
+        'start': function(coords, event) {
+          startCoords = coords;
+          valid = true;
+        },
+        'cancel': function(event) {
+          valid = false;
+        },
+        'end': function(coords, event) {
+          if (validSwipe(coords)) {
+            scope.$apply(function() {
+              element.triggerHandler(eventName);
+              swipeHandler(scope, {$event: event});
+            });
+          }
+        }
+      }, pointerTypes);
+    };
+  }]);
+}
+
+// Left is negative X-coordinate, right is positive.
+makeSwipeDirective('ngSwipeLeft', -1, 'swipeleft');
+makeSwipeDirective('ngSwipeRight', 1, 'swiperight');
+
+
+
+})(window, window.angular);