Side menu controller

hacking/SideMenuController.unit.js

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+describe('SideMenuController', function() {
+  var ctrl, l, r, c;
+
+  var Controller = function(opts) {
+    this.el = opts.el;
+    this.animateClass = opts.animateClass;
+  };
+  Controller.prototype = {
+    getTranslateX: function() {
+      var r = /translate3d\((-?.+)px/;
+      var d = r.exec(this.el.style.webkitTransform);
+
+      if(d && d.length > 0) {
+        return parseFloat(d[1]);
+      }
+      return 0;
+    },
+    setTranslateX: function(amount) {
+      this.el.style.webkitTransform = 'translate3d(' + amount + 'px, 0, 0)';
+    },
+    enableAnimation: function() {
+      this.el.classList.add(this.animateClass);
+    },
+    disableAnimation: function() {
+      this.el.classList.remove(this.animateClass);
+    }
+  };
+
+  beforeEach(function() {
+    l = new SideMenu({ el: document.createElement('div'), width: 270 });
+    r = new SideMenu({ el: document.createElement('div'), width: 270 });
+    c = new Controller({ el: document.createElement('div') });
+
+    ctrl = new SideMenuController({
+      left: l,
+      right: r,
+      content: c
+    });
+  });
+
+  // Init
+  it('Should init', function() {
+    expect(ctrl.left).toBe(l);
+    expect(ctrl.right).toBe(r);
+    expect(ctrl.content).toBe(c);
+  });
+
+  // Menu enable/disable
+  it('Should set enabled/disabled', function() {
+    var left = ctrl.left;
+    var right = ctrl.right;
+    left.setIsEnabled(false);
+    right.setIsEnabled(false);
+    expect(left.isEnabled).toEqual(false);
+    expect(right.isEnabled).toEqual(false);
+    left.setIsEnabled(true);
+    right.setIsEnabled(true);
+    expect(left.isEnabled).toEqual(true);
+    expect(right.isEnabled).toEqual(true);
+  });
+
+  // Menu widths
+  it('Should init widths', function() {
+    var left = ctrl.left;
+    var right = ctrl.right;
+    expect(left.width).toEqual(270);
+    expect(right.width).toEqual(270);
+  });
+
+  it('Should have amount and percentage correct', function() {
+    ctrl.openAmount(l.width/2);
+    expect(ctrl.getOpenAmount()).toEqual(l.width/2);
+    expect(ctrl.getOpenPercentage()).toEqual(50);
+
+    ctrl.openAmount(l.width/4);
+    expect(ctrl.getOpenAmount()).toEqual(l.width/4);
+    expect(ctrl.getOpenPercentage()).toEqual(25);
+
+    ctrl.openAmount(-r.width/2);
+    expect(ctrl.getOpenAmount()).toEqual(-r.width/2);
+    expect(ctrl.getOpenPercentage()).toEqual(-50);
+  });
+
+  // Open
+  it('Should toggle left and right', function() {
+    ctrl.toggleLeft();
+    expect(ctrl.getOpenPercentage()).toEqual(100);
+    ctrl.toggleRight();
+    expect(ctrl.getOpenPercentage()).toEqual(-100);
+  });
+  
+  // Snap
+  it('Should snap', function() {
+
+    // Center to right, Going right, less than half, too slow (snap back)
+    ctrl.openAmount(10);
+    ctrl.snapToRest({
+      gesture: {
+        velocityX: 0,
+        direction: 'right'
+      }
+    });
+    expect(ctrl.getOpenPercentage()).toEqual(0);
+
+    // Right to left, Going left, more than half, too slow (snap back)
+    ctrl.openPercentage(51);
+    ctrl.snapToRest({
+      gesture: {
+        velocityX: 0,
+        direction: 'left'
+      }
+    });
+    expect(ctrl.getOpenPercentage()).toEqual(100);
+
+    // Right to left, Going left, less than half, too slow (snap back)
+    ctrl.openAmount(10);
+    ctrl.snapToRest({
+      gesture: {
+        velocityX: 0,
+        direction: 'left'
+      }
+    });
+    expect(ctrl.getOpenPercentage()).toEqual(0);
+
+    // Left to right, Going right, more than half, too slow (snap back)
+    ctrl.openPercentage(-51);
+    ctrl.snapToRest({
+      gesture: {
+        velocityX: 0,
+        direction: 'right'
+      }
+    });
+    expect(ctrl.getOpenPercentage()).toEqual(-100);
+      
+    // Going right, more than half, or quickly (snap open)
+    ctrl.openPercentage(-51);
+    ctrl.snapToRest({
+      gesture: {
+        velocityX: 1,
+        direction: 'right'
+      }
+    });
+    expect(ctrl.getOpenPercentage()).toEqual(0);
+
+    // Going left, more than half, or quickly (snap open)
+    ctrl.openPercentage(-51);
+    ctrl.snapToRest({
+      gesture: {
+        velocityX: 1,
+        direction: 'left'
+      }
+    });
+    expect(ctrl.getOpenPercentage()).toEqual(-100);
+  });
+
+  it('Should test content drag events', function() {
+  });
+});