pdf-lib
Version:
Create and modify PDF files with JavaScript
96 lines • 4.25 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var PDFString_1 = tslib_1.__importDefault(require("../objects/PDFString"));
var PDFHexString_1 = tslib_1.__importDefault(require("../objects/PDFHexString"));
var PDFArray_1 = tslib_1.__importDefault(require("../objects/PDFArray"));
var PDFName_1 = tslib_1.__importDefault(require("../objects/PDFName"));
var PDFAcroTerminal_1 = tslib_1.__importDefault(require("./PDFAcroTerminal"));
var errors_1 = require("../errors");
var PDFAcroButton = /** @class */ (function (_super) {
tslib_1.__extends(PDFAcroButton, _super);
function PDFAcroButton() {
return _super !== null && _super.apply(this, arguments) || this;
}
PDFAcroButton.prototype.Opt = function () {
return this.dict.lookupMaybe(PDFName_1.default.of('Opt'), PDFString_1.default, PDFHexString_1.default, PDFArray_1.default);
};
PDFAcroButton.prototype.setOpt = function (opt) {
this.dict.set(PDFName_1.default.of('Opt'), this.dict.context.obj(opt));
};
PDFAcroButton.prototype.getExportValues = function () {
var opt = this.Opt();
if (!opt)
return undefined;
if (opt instanceof PDFString_1.default || opt instanceof PDFHexString_1.default) {
return [opt];
}
var values = [];
for (var idx = 0, len = opt.size(); idx < len; idx++) {
var value = opt.lookup(idx);
if (value instanceof PDFString_1.default || value instanceof PDFHexString_1.default) {
values.push(value);
}
}
return values;
};
PDFAcroButton.prototype.removeExportValue = function (idx) {
var 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
PDFAcroButton.prototype.normalizeExportValues = function () {
var _a, _b, _c, _d;
var exportValues = (_a = this.getExportValues()) !== null && _a !== void 0 ? _a : [];
var Opt = [];
var widgets = this.getWidgets();
for (var idx = 0, len = widgets.length; idx < len; idx++) {
var widget = widgets[idx];
var exportVal = (_b = exportValues[idx]) !== null && _b !== void 0 ? _b : PDFHexString_1.default.fromText((_d = (_c = widget.getOnValue()) === null || _c === void 0 ? void 0 : _c.decodeText()) !== null && _d !== void 0 ? _d : '');
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.
*/
PDFAcroButton.prototype.addOpt = function (opt, useExistingOptIdx) {
var _a;
this.normalizeExportValues();
var optText = opt.decodeText();
var existingIdx;
if (useExistingOptIdx) {
var exportValues = (_a = this.getExportValues()) !== null && _a !== void 0 ? _a : [];
for (var idx = 0, len = exportValues.length; idx < len; idx++) {
var exportVal = exportValues[idx];
if (exportVal.decodeText() === optText)
existingIdx = idx;
}
}
var Opt = this.Opt();
Opt.push(opt);
return existingIdx !== null && existingIdx !== void 0 ? existingIdx : Opt.size() - 1;
};
PDFAcroButton.prototype.addWidgetWithOpt = function (widget, opt, useExistingOptIdx) {
var optIdx = this.addOpt(opt, useExistingOptIdx);
var apStateValue = PDFName_1.default.of(String(optIdx));
this.addWidget(widget);
return apStateValue;
};
return PDFAcroButton;
}(PDFAcroTerminal_1.default));
exports.default = PDFAcroButton;
//# sourceMappingURL=PDFAcroButton.js.map