Code coverage report for imgly-sdk-html5/src/js/operations/flip-operation.js

Statements: 100% (85 / 85)      Branches: 100% (38 / 38)      Functions: 100% (11 / 11)      Lines: 100% (39 / 39)      Ignored: 18 statements, 1 function, 18 branches     

All files » imgly-sdk-html5/src/js/operations/ » flip-operation.js
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/*
 * Photo Editor SDK - photoeditorsdk.com
 * Copyright (c) 2013-2015 9elements GmbH
 *
 * Released under Attribution-NonCommercial 3.0 Unported
 * http://creativecommons.org/licenses/by-nc/3.0/
 *
 * For commercial use, please contact us at contact@9elements.com
 */
 
'use strict';
 
Object.defineProperty(exports, '__esModule', {
  value: true
});
// istanbul ignore next
 
var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; Eif ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { Eif (protoProps) defineProperties(Constructor.prototype, protoProps); Iif (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
 
// istanbul ignore next
 
var _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; _again = false; Iif (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); Iif (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; desc = parent = undefined; continue _function; } } else Eif ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };
 
// istanbul ignore next
 
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
 
// istanbul ignore next
 
function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
 
// istanbul ignore next
 
function _inherits(subClass, superClass) { Iif (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); Eif (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
var _operation = require('./operation');
 
var _operation2 = _interopRequireDefault(_operation);
 
/**
 * An operation that can flip the canvas
 *
 * @class
 * @alias ImglyKit.Operations.FlipOperation
 * @extends ImglyKit.Operation
 */
 
var FlipOperation = (function (_Operation) {
  _inherits(FlipOperation, _Operation);
 
  function FlipOperation() {
    _classCallCheck(this, FlipOperation);
 
    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }
 
    _get(Object.getPrototypeOf(FlipOperation.prototype), 'constructor', this).apply(this, args);
 
    /**
     * The fragment shader used for this operation
     */
    this.fragmentShader = '\n      precision mediump float;\n      uniform sampler2D u_image;\n      varying vec2 v_texCoord;\n      uniform bool u_flipVertical;\n      uniform bool u_flipHorizontal;\n\n      void main() {\n        vec2 texCoord = vec2(v_texCoord);\n        if (u_flipVertical) {\n          texCoord.y = 1.0 - texCoord.y;\n        }\n        if (u_flipHorizontal) {\n          texCoord.x = 1.0 - texCoord.x;\n        }\n        gl_FragColor = texture2D(u_image, texCoord);\n      }\n    ';
  }
 
  /**
   * A unique string that identifies this operation. Can be used to select
   * operations.
   * @type {String}
   */
 
  /**
   * Crops this image using WebGL
   * @param  {WebGLRenderer} renderer
   */
  /* istanbul ignore next */
 
  _createClass(FlipOperation, [{
    key: '_renderWebGL',
    value: function _renderWebGL(renderer) {
      renderer.runShader(null, this.fragmentShader, {
        uniforms: {
          u_flipVertical: { type: 'f', value: this._options.vertical },
          u_flipHorizontal: { type: 'f', value: this._options.horizontal }
        }
      });
    }
 
    /**
     * Crops the image using Canvas2D
     * @param  {CanvasRenderer} renderer
     */
  }, {
    key: '_renderCanvas',
    value: function _renderCanvas(renderer) {
      var canvas = renderer.getCanvas();
      var context = renderer.getContext();
 
      var scaleX = 1,
          scaleY = 1;
      var translateX = 0,
          translateY = 0;
 
      Eif (this._options.horizontal) {
        scaleX = -1;
        translateX = canvas.width;
      }
 
      Eif (this._options.vertical) {
        scaleY = -1;
        translateY = canvas.height;
      }
 
      // Save the current state
      context.save();
 
      // Apply the transformation
      context.translate(translateX, translateY);
      context.scale(scaleX, scaleY);
 
      // Create a temporary canvas so that we can draw the image
      // with the applied transformation
      var tempCanvas = renderer.cloneCanvas();
      context.drawImage(tempCanvas, 0, 0);
 
      // Restore old transformation
      context.restore();
    }
  }]);
 
  return FlipOperation;
})(_operation2['default']);
 
FlipOperation.prototype.identifier = 'flip';
 
/**
 * Specifies the available options for this operation
 * @type {Object}
 */
FlipOperation.prototype.availableOptions = {
  horizontal: { type: 'boolean', 'default': false },
  vertical: { type: 'boolean', 'default': false }
};
 
exports['default'] = FlipOperation;
module.exports = exports['default'];
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