JsBarcode.js

'use strict';

var _barcodes = require('./barcodes/');

var _barcodes2 = _interopRequireDefault(_barcodes);

var _merge = require('./help/merge.js');

var _merge2 = _interopRequireDefault(_merge);

var _linearizeEncodings = require('./help/linearizeEncodings.js');

var _linearizeEncodings2 = _interopRequireDefault(_linearizeEncodings);

var _fixOptions = require('./help/fixOptions.js');

var _fixOptions2 = _interopRequireDefault(_fixOptions);

var _getRenderProperties = require('./help/getRenderProperties.js');

var _getRenderProperties2 = _interopRequireDefault(_getRenderProperties);

var _optionsFromStrings = require('./help/optionsFromStrings.js');

var _optionsFromStrings2 = _interopRequireDefault(_optionsFromStrings);

var _ErrorHandler = require('./exceptions/ErrorHandler.js');

var _ErrorHandler2 = _interopRequireDefault(_ErrorHandler);

var _exceptions = require('./exceptions/exceptions.js');

var _defaults = require('./options/defaults.js');

var _defaults2 = _interopRequireDefault(_defaults);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// The protype of the object returned from the JsBarcode() call


// Help functions
var API = function API() {};

// The first call of the library API
// Will return an object with all barcodes calls and the data that is used
// by the renderers


// Default values


// Exceptions
// Import all the barcodes
var JsBarcode = function JsBarcode(element, text, options) {
	var api = new API();

	if (typeof element === "undefined") {
		throw Error("No element to render on was provided.");
	}

	// Variables that will be pased through the API calls
	api._renderProperties = (0, _getRenderProperties2.default)(element);
	api._encodings = [];
	api._options = _defaults2.default;
	api._errorHandler = new _ErrorHandler2.default(api);

	// If text is set, use the simple syntax (render the barcode directly)
	if (typeof text !== "undefined") {
		options = options || {};

		if (!options.format) {
			options.format = autoSelectBarcode();
		}

		api.options(options)[options.format](text, options).render();
	}

	return api;
};

// To make tests work TODO: remove
JsBarcode.getModule = function (name) {
	return _barcodes2.default[name];
};

// Register all barcodes
for (var name in _barcodes2.default) {
	if (_barcodes2.default.hasOwnProperty(name)) {
		// Security check if the propery is a prototype property
		registerBarcode(_barcodes2.default, name);
	}
}
function registerBarcode(barcodes, name) {
	API.prototype[name] = API.prototype[name.toUpperCase()] = API.prototype[name.toLowerCase()] = function (text, options) {
		var api = this;
		return api._errorHandler.wrapBarcodeCall(function () {
			// Ensure text is options.text
			options.text = typeof options.text === 'undefined' ? undefined : '' + options.text;

			var newOptions = (0, _merge2.default)(api._options, options);
			newOptions = (0, _optionsFromStrings2.default)(newOptions);
			var Encoder = barcodes[name];
			var encoded = encode(text, Encoder, newOptions);
			api._encodings.push(encoded);

			return api;
		});
	};
}

// encode() handles the Encoder call and builds the binary string to be rendered
function encode(text, Encoder, options) {
	// Ensure that text is a string
	text = "" + text;

	var encoder = new Encoder(text, options);

	// If the input is not valid for the encoder, throw error.
	// If the valid callback option is set, call it instead of throwing error
	if (!encoder.valid()) {
		throw new _exceptions.InvalidInputException(encoder.constructor.name, text);
	}

	// Make a request for the binary data (and other infromation) that should be rendered
	var encoded = encoder.encode();

	// Encodings can be nestled like [[1-1, 1-2], 2, [3-1, 3-2]
	// Convert to [1-1, 1-2, 2, 3-1, 3-2]
	encoded = (0, _linearizeEncodings2.default)(encoded);

	// Merge
	for (var i = 0; i < encoded.length; i++) {
		encoded[i].options = (0, _merge2.default)(options, encoded[i].options);
	}

	return encoded;
}

function autoSelectBarcode() {
	// If CODE128 exists. Use it
	if (_barcodes2.default["CODE128"]) {
		return "CODE128";
	}

	// Else, take the first (probably only) barcode
	return Object.keys(_barcodes2.default)[0];
}

// Sets global encoder options
// Added to the api by the JsBarcode function
API.prototype.options = function (options) {
	this._options = (0, _merge2.default)(this._options, options);
	return this;
};

// Will create a blank space (usually in between barcodes)
API.prototype.blank = function (size) {
	var zeroes = new Array(size + 1).join("0");
	this._encodings.push({ data: zeroes });
	return this;
};

// Initialize JsBarcode on all HTML elements defined.
API.prototype.init = function () {
	// Should do nothing if no elements where found
	if (!this._renderProperties) {
		return;
	}

	// Make sure renderProperies is an array
	if (!Array.isArray(this._renderProperties)) {
		this._renderProperties = [this._renderProperties];
	}

	var renderProperty;
	for (var i in this._renderProperties) {
		renderProperty = this._renderProperties[i];
		var options = (0, _merge2.default)(this._options, renderProperty.options);

		if (options.format == "auto") {
			options.format = autoSelectBarcode();
		}

		this._errorHandler.wrapBarcodeCall(function () {
			var text = options.value;
			var Encoder = _barcodes2.default[options.format.toUpperCase()];
			var encoded = encode(text, Encoder, options);

			render(renderProperty, encoded, options);
		});
	}
};

// The render API call. Calls the real render function.
API.prototype.render = function () {
	if (!this._renderProperties) {
		throw new _exceptions.NoElementException();
	}

	if (Array.isArray(this._renderProperties)) {
		for (var i = 0; i < this._renderProperties.length; i++) {
			render(this._renderProperties[i], this._encodings, this._options);
		}
	} else {
		render(this._renderProperties, this._encodings, this._options);
	}

	return this;
};

API.prototype._defaults = _defaults2.default;

// Prepares the encodings and calls the renderer
function render(renderProperties, encodings, options) {
	encodings = (0, _linearizeEncodings2.default)(encodings);

	for (var i = 0; i < encodings.length; i++) {
		encodings[i].options = (0, _merge2.default)(options, encodings[i].options);
		(0, _fixOptions2.default)(encodings[i].options);
	}

	(0, _fixOptions2.default)(options);

	var Renderer = renderProperties.renderer;
	var renderer = new Renderer(renderProperties.element, encodings, options);
	renderer.render();

	if (renderProperties.afterRender) {
		renderProperties.afterRender();
	}
}

// Export to browser
if (typeof window !== "undefined") {
	window.JsBarcode = JsBarcode;
}

// Export to jQuery
/*global jQuery */
if (typeof jQuery !== 'undefined') {
	jQuery.fn.JsBarcode = function (content, options) {
		var elementArray = [];
		jQuery(this).each(function () {
			elementArray.push(this);
		});
		return JsBarcode(elementArray, content, options);
	};
}

// Export to commonJS
module.exports = JsBarcode;