429ffdcd2f
- when binding (after parsing) we get a map between some template nodes and some data nodes;
- so set user data in input handlers in using data node uids in the annotation storage;
- to save the form, just put the value we have in the storage in the correct data nodes, serialize the xml as a string and then write the string at the end of the pdf using src/core/writer.js;
- fix few bugs around data bindings:
- the "Off" issue in Bug 1716980.
83 lines
2.1 KiB
JavaScript
83 lines
2.1 KiB
JavaScript
/* Copyright 2021 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import {
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$getAttributes,
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$getChildren,
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$nodeName,
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$setValue,
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$toString,
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$uid,
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} from "./xfa_object.js";
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class DataHandler {
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constructor(root, data) {
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this.data = data;
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this.dataset = root.datasets || null;
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}
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serialize(storage) {
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const stack = [[-1, this.data[$getChildren]()]];
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while (stack.length > 0) {
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const last = stack[stack.length - 1];
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const [i, children] = last;
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if (i + 1 === children.length) {
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stack.pop();
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continue;
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}
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const child = children[++last[0]];
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const storageEntry = storage.get(child[$uid]);
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if (storageEntry) {
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child[$setValue](storageEntry);
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} else {
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const attributes = child[$getAttributes]();
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for (const value of attributes.values()) {
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const entry = storage.get(value[$uid]);
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if (entry) {
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value[$setValue](entry);
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break;
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}
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}
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}
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const nodes = child[$getChildren]();
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if (nodes.length > 0) {
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stack.push([-1, nodes]);
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}
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}
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const buf = [
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`<xfa:datasets xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/">`,
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];
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if (this.dataset) {
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// Dump nodes other than data: they can contains for example
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// some data for choice lists.
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for (const child of this.dataset[$getChildren]()) {
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if (child[$nodeName] !== "data") {
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child[$toString](buf);
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}
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}
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}
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this.data[$toString](buf);
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buf.push("</xfa:datasets>");
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return buf.join("");
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}
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}
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export { DataHandler };
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