DocumentBookmark Object (original) (raw)
Summary
Represents a document bookmark (table of content) item.
Syntax
function lt.Document.DocumentBookmark class lt.Document.DocumentBookmark() Example
Structure.ts
DocumentHelper.ts
Structure.js
DocumentHelper.js
Structure.html
import { DocumentHelper } from "../../utilities/DocumentHelper";
export class LEADDocument_StructureExample {
private el: HTMLElement;
public constructor() {
lt.RasterSupport.setLicenseUri("https://demo.leadtools.com/licenses/js/LEADTOOLSEVAL.txt", "EVAL", null);
DocumentHelper.initFactory();
}
public run(buttonID: string) {
this.el = document.getElementById(buttonID);
this.el.onclick = this.loadDocument;
}
loadDocument = () => {
const url = "https://demo.leadtools.com/images/pdf/leadtools.pdf";
DocumentHelper.log("Loading document...");
lt.Document.DocumentFactory.loadFromUri(url, null)
.done((doc: lt.Document.LEADDocument) => {
DocumentHelper.log("Done. Showing the structure...");
if (!doc.isStructureSupported) {
// This document does not support table of content or links
DocumentHelper.log("Structure not supported");
return;
}
if (doc.structure.isParsed) {
// Show them
this.showBookmarks(doc.structure.bookmarks);
}
else {
// We support it, but we don't have it parsed yet
doc.structure.parse()
.done((doc) => {
DocumentHelper.log("Document structure was parsed successfully");
this.showBookmarks(doc.structure.bookmarks);
})
.fail(DocumentHelper.showServiceError);
}
})
.fail(DocumentHelper.showServiceError);
}
showBookmarks = (bookmarks: lt.Document.DocumentBookmark[]) => {
const ul = this.makeBookmarkList(bookmarks);
this.el.parentNode.appendChild(ul);
}
makeBookmarkList = (bookmarks: lt.Document.DocumentBookmark[]) => {
if (bookmarks && bookmarks.length) {
const ul = document.createElement("ul");
for (let i = 0; i < bookmarks.length; i++) {
const bookmark = bookmarks[i];
const li = document.createElement("li");
const span = document.createElement("span");
span.innerHTML = bookmark.title + " (Page " + bookmark.target.pageNumber + ")";
li.appendChild(span);
if (bookmark.children.length)
li.appendChild(this.makeBookmarkList(bookmark.children));
ul.appendChild(li);
}
return ul;
}
return null;
}
}
export class DocumentHelper {
static showServiceError = (jqXHR, statusText, errorThrown) => {
alert("Error returned from service. See the console for details.");
const serviceError = lt.Document.ServiceError.parseError(jqXHR, statusText, errorThrown);
console.error(serviceError);
}
static log = (message: string, data?: any) => {
const outputElement = document.getElementById("output");
if (outputElement) {
const time = (new Date()).toLocaleTimeString();
const textElement = document.createElement("p");
textElement.innerHTML = (outputElement.childElementCount + 1) + " [" + time + "]: " + message;
outputElement.insertBefore(textElement, outputElement.firstChild);
}
if (!data)
console.log(message);
else
console.log(message, data);
}
static initFactory = () => {
// To communicate with the DocumentsService, it must be running!
// Change these parameters to match the path to the service.
lt.Document.DocumentFactory.serviceHost = "http://localhost:40000";
lt.Document.DocumentFactory.servicePath = "";
lt.Document.DocumentFactory.serviceApiPath = "api";
}
}
import { DocumentHelper } from "../../utilities/DocumentHelper";
export class LEADDocument_StructureExample {
el;
constructor() {
lt.RasterSupport.setLicenseUri("https://demo.leadtools.com/licenses/js/LEADTOOLSEVAL.txt", "EVAL", null);
DocumentHelper.initFactory();
}
run(buttonID) {
this.el = document.getElementById(buttonID);
this.el.onclick = this.loadDocument;
}
loadDocument = () => {
const url = "https://demo.leadtools.com/images/pdf/leadtools.pdf";
DocumentHelper.log("Loading document...");
lt.Document.DocumentFactory.loadFromUri(url, null)
.done((doc) => {
DocumentHelper.log("Done. Showing the structure...");
if (!doc.isStructureSupported) {
// This document does not support table of content or links
DocumentHelper.log("Structure not supported");
return;
}
if (doc.structure.isParsed) {
// Show them
this.showBookmarks(doc.structure.bookmarks);
}
else {
// We support it, but we don't have it parsed yet
doc.structure.parse()
.done((doc) => {
DocumentHelper.log("Document structure was parsed successfully");
this.showBookmarks(doc.structure.bookmarks);
})
.fail(DocumentHelper.showServiceError);
}
})
.fail(DocumentHelper.showServiceError);
}
showBookmarks = (bookmarks) => {
const ul = this.makeBookmarkList(bookmarks);
this.el.parentNode.appendChild(ul);
}
makeBookmarkList = (bookmarks) => {
if (bookmarks && bookmarks.length) {
const ul = document.createElement("ul");
for (let i = 0; i < bookmarks.length; i++) {
const bookmark = bookmarks[i];
const li = document.createElement("li");
const span = document.createElement("span");
span.innerHTML = bookmark.title + " (Page " + bookmark.target.pageNumber + ")";
li.appendChild(span);
if (bookmark.children.length)
li.appendChild(this.makeBookmarkList(bookmark.children));
ul.appendChild(li);
}
return ul;
}
return null;
}
}
export class DocumentHelper {
static showServiceError = (jqXHR, statusText, errorThrown) => {
alert("Error returned from service. See the console for details.");
const serviceError = lt.Document.ServiceError.parseError(jqXHR, statusText, errorThrown);
console.error(serviceError);
}
static log = (message, data) => {
const outputElement = document.getElementById("output");
if (outputElement) {
const time = (new Date()).toLocaleTimeString();
const textElement = document.createElement("p");
textElement.innerHTML = (outputElement.childElementCount + 1) + " [" + time + "]: " + message;
outputElement.insertBefore(textElement, outputElement.firstChild);
}
if (!data)
console.log(message);
else
console.log(message, data);
}
static initFactory = () => {
// To communicate with the DocumentsService, it must be running!
// Change these parameters to match the path to the service.
lt.Document.DocumentFactory.serviceHost = "http://localhost:40000";
lt.Document.DocumentFactory.servicePath = "";
lt.Document.DocumentFactory.serviceApiPath = "api";
}
}
<!doctype html>
<html lang="en">
<title>Document Example | Structure</title>
<head>
<script src="https://code.jquery.com/jquery-2.2.4.min.js"
integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script>
<script src="../../LT/Leadtools.js"></script>
<script src="../../LT/Leadtools.Controls.js"></script>
<script src="../../LT/Leadtools.Annotations.Engine.js"></script>
<script src="../../LT/Leadtools.Annotations.Designers.js"></script>
<script src="../../LT/Leadtools.Annotations.Rendering.Javascript.js"></script>
<script src="../../LT/Leadtools.Annotations.Automation.js"></script>
<script src="../../LT/Leadtools.ImageProcessing.Main.js"></script>
<script src="../../LT/Leadtools.ImageProcessing.Color.js"></script>
<script src="../../LT/Leadtools.ImageProcessing.Core.js"></script>
<script src="../../LT/Leadtools.ImageProcessing.Effects.js"></script>
<script src="../../LT/Leadtools.Document.js"></script>
<script src="../../LT/Leadtools.Document.Viewer.js"></script>
<link rel="stylesheet" type="text/css" href="../../css/examples.css">
<!-- All demo files are bundled and appended to the window -->
<script src="../../bundle.js" type="text/javascript"></script>
</head>
<body>
<div>
<button type="button" id="exampleButton">Run Example</button>
</div>
<div id="output"></div>
<div>
<img id="img" />
</div>
</body>
<script>
window.onload = () => {
const example = new window.examples.LEADDocument.Structure();
example.run("exampleButton");
};
</script>
</html>