@pdfme/pdf-lib
Version:
Create and modify PDF files with JavaScript
91 lines • 3.61 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const PDFString_1 = __importDefault(require("../objects/PDFString"));
const PDFHexString_1 = __importDefault(require("../objects/PDFHexString"));
const PDFArray_1 = __importDefault(require("../objects/PDFArray"));
const PDFName_1 = __importDefault(require("../objects/PDFName"));
const PDFAcroTerminal_1 = __importDefault(require("./PDFAcroTerminal"));
const errors_1 = require("../errors");
class PDFAcroButton extends PDFAcroTerminal_1.default {
Opt() {
return this.dict.lookupMaybe(PDFName_1.default.of('Opt'), PDFString_1.default, PDFHexString_1.default, PDFArray_1.default);
}
setOpt(opt) {
this.dict.set(PDFName_1.default.of('Opt'), this.dict.context.obj(opt));
}
getExportValues() {
const opt = this.Opt();
if (!opt)
return undefined;
if (opt instanceof PDFString_1.default || opt instanceof PDFHexString_1.default) {
return [opt];
}
const values = [];
for (let idx = 0, len = opt.size(); idx < len; idx++) {
const value = opt.lookup(idx);
if (value instanceof PDFString_1.default || value instanceof PDFHexString_1.default) {
values.push(value);
}
}
return values;
}
removeExportValue(idx) {
const opt = this.Opt();
if (!opt)
return;
if (opt instanceof PDFString_1.default || opt instanceof PDFHexString_1.default) {
if (idx !== 0)
throw new errors_1.IndexOutOfBoundsError(idx, 0, 0);
this.setOpt([]);
}
else {
if (idx < 0 || idx > opt.size()) {
throw new errors_1.IndexOutOfBoundsError(idx, 0, opt.size());
}
opt.remove(idx);
}
}
// Enforce use use of /Opt even if it isn't strictly necessary
normalizeExportValues() {
const exportValues = this.getExportValues() ?? [];
const Opt = [];
const widgets = this.getWidgets();
for (let idx = 0, len = widgets.length; idx < len; idx++) {
const widget = widgets[idx];
const exportVal = exportValues[idx] ?? PDFHexString_1.default.fromText(widget.getOnValue()?.decodeText() ?? '');
Opt.push(exportVal);
}
this.setOpt(Opt);
}
/**
* Reuses existing opt if one exists with the same value (assuming
* `useExistingIdx` is `true`). Returns index of existing (or new) opt.
*/
addOpt(opt, useExistingOptIdx) {
this.normalizeExportValues();
const optText = opt.decodeText();
let existingIdx;
if (useExistingOptIdx) {
const exportValues = this.getExportValues() ?? [];
for (let idx = 0, len = exportValues.length; idx < len; idx++) {
const exportVal = exportValues[idx];
if (exportVal.decodeText() === optText)
existingIdx = idx;
}
}
const Opt = this.Opt();
Opt.push(opt);
return existingIdx ?? Opt.size() - 1;
}
addWidgetWithOpt(widget, opt, useExistingOptIdx) {
const optIdx = this.addOpt(opt, useExistingOptIdx);
const apStateValue = PDFName_1.default.of(String(optIdx));
this.addWidget(widget);
return apStateValue;
}
}
exports.default = PDFAcroButton;
//# sourceMappingURL=PDFAcroButton.js.map