alipay-emulator/uni_modules/lime-barcode/components/l-barcode/jsbarcode/JsBarcode.js

208 lines
5.8 KiB
JavaScript

// Import all the barcodes
import barcodes from './barcodes/';
// Help functions
import merge from './help/merge.js';
import linearizeEncodings from './help/linearizeEncodings.js';
import fixOptions from './help/fixOptions.js';
import getRenderProperties from './help/getRenderProperties.js';
import optionsFromStrings from './help/optionsFromStrings.js';
// Exceptions
import ErrorHandler from './exceptions/ErrorHandler.js';
import { InvalidInputException, NoElementException } from './exceptions/exceptions.js';
// Default values
import defaults from './options/defaults.js';
// The protype of the object returned from the JsBarcode() call
let API = function () { };
// The first call of the library API
// Will return an object with all barcodes calls and the data that is used
// by the renderers
let JsBarcode = function (element, text, options) {
console.log('1111111')
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 = getRenderProperties(element);
api._encodings = [];
api._options = defaults;
api._errorHandler = new ErrorHandler(api);
// If text is set, use the simple syntax (render the barcode directly)
if (typeof text !== "undefined") {
options = options || {};
if (!options.format || options.format == "auto") {
options.format = autoSelectBarcode();
}
api.options(options)[options.format](text, options).render();
}
return api;
};
// To make tests work TODO: remove
JsBarcode.getModule = function (name) {
return barcodes[name];
};
// Register all barcodes
for (var name in barcodes) {
if (barcodes.hasOwnProperty(name)) { // Security check if the propery is a prototype property
registerBarcode(barcodes, name);
}
}
function registerBarcode(barcodes, name) {
// console.log('name', 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 = merge(api._options, options);
newOptions = optionsFromStrings(newOptions);
// console.log('newOptions:::2', 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 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 = linearizeEncodings(encoded);
// Merge
for (let i = 0; i < encoded.length; i++) {
encoded[i].options = merge(options, encoded[i].options);
}
return encoded;
}
function autoSelectBarcode() {
// If CODE128 exists. Use it
if (barcodes["CODE128"]) {
return "CODE128";
}
// Else, take the first (probably only) barcode
return Object.keys(barcodes)[0];
}
// Sets global encoder options
// Added to the api by the JsBarcode function
API.prototype.options = function (options) {
this._options = merge(this._options, options);
return this;
};
// Will create a blank space (usually in between barcodes)
API.prototype.blank = function (size) {
// const 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 (let i in this._renderProperties) {
// renderProperty = this._renderProperties[i];
// var options = merge(this._options, renderProperty.options);
// if (options.format == "auto") {
// options.format = autoSelectBarcode();
// }
// this._errorHandler.wrapBarcodeCall(function () {
// var text = options.value;
// var Encoder = barcodes[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 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 = defaults;
// Prepares the encodings and calls the renderer
function render(renderProperties, encodings, options) {
encodings = linearizeEncodings(encodings);
for (let i = 0; i < encodings.length; i++) {
encodings[i].options = merge(options, encodings[i].options);
fixOptions(encodings[i].options);
}
fixOptions(options);
var Renderer = renderProperties.renderer;
var renderer = new Renderer(renderProperties.element, encodings, options);
renderer.render();
if (renderProperties.afterRender) {
renderProperties.afterRender();
}
}
export { JsBarcode };