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gaia/tv_apps/tv-ftu/bower_components/smart-button/script.js

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+'use strict';
+/* global KeyEvent */
+
+window.SmartButton = (function(win) {
+  // Extend from the HTMLButtonElement prototype
+  var proto = Object.create(HTMLButtonElement.prototype);
+
+  proto.createdCallback = function() {
+    this.addEventListener('mousedown', this);
+    this.addEventListener('mouseup', this);
+    this.addEventListener('touchstart', this);
+    this.addEventListener('touchend', this);
+    this.addEventListener('keydown', this);
+    this.addEventListener('keyup', this);
+    this.addEventListener('focus', this);
+    this.addEventListener('blur', this);
+    this.addEventListener('transitionend', this);
+    this.tabIndex = 0;
+  };
+
+  proto.handleEvent = function(evt) {
+    switch(evt.type) {
+      case 'mousedown':
+      case 'touchstart':
+        this.classList.add('pressed');
+        break;
+      case 'keydown':
+        if (evt.keyCode === KeyEvent.DOM_VK_RETURN) {
+          this.classList.add('pressed');
+        }
+        break;
+      case 'mouseup':
+      case 'touchend':
+        this.classList.remove('pressed');
+        this.classList.add('released');
+        break;
+      case 'keyup':
+        if (evt.keyCode === KeyEvent.DOM_VK_RETURN) {
+          this.classList.remove('pressed');
+          this.classList.add('released');
+          this.click();
+        }
+        break;
+      case 'transitionend':
+        if (this.classList.contains('released')) {
+          this.classList.remove('released');
+        }
+        break;
+      case 'focus':
+        this.classList.add('focused');
+        break;
+      case 'blur':
+        this.classList.remove('pressed');
+        this.classList.remove('released');
+        this.classList.remove('focused');
+        break;
+    }
+  };
+
+  // Register and return the constructor
+  return document.registerElement('smart-button', { prototype: proto });
+})(window);