mirror of
https://github.com/futurepress/epub.js.git
synced 2025-10-04 15:09:16 +02:00
Return nested TOC with duplicate ids
This commit is contained in:
parent
a1e77b745b
commit
7297af051b
1 changed files with 28 additions and 36 deletions
|
@ -151,27 +151,35 @@ class Navigation {
|
|||
var navElement = querySelectorByType(navHtml, "nav", "toc");
|
||||
var navItems = navElement ? qsa(navElement, "li") : [];
|
||||
var length = navItems.length;
|
||||
var i;
|
||||
var toc = {};
|
||||
var list = [];
|
||||
var item, parent;
|
||||
|
||||
if(!navItems || length === 0) return list;
|
||||
|
||||
for (i = 0; i < length; ++i) {
|
||||
item = this.navItem(navItems[i]);
|
||||
if (item) {
|
||||
toc[item.id] = item;
|
||||
if(!item.parent) {
|
||||
list.push(item);
|
||||
} else {
|
||||
parent = toc[item.parent];
|
||||
parent.subitems.push(item);
|
||||
}
|
||||
}
|
||||
if (!navElement) return list;
|
||||
if (!navElement.children) return list;
|
||||
if (!navElement.children[0]) return list;
|
||||
|
||||
list = this.parseNavList(navElement.children[0]);
|
||||
return list;
|
||||
}
|
||||
|
||||
return list;
|
||||
/**
|
||||
* Parses lists in the toc
|
||||
* @param {document} navListHtml
|
||||
* @param {string} parent id
|
||||
* @return {array} navigation list
|
||||
*/
|
||||
parseNavList(navListHtml, parent) {
|
||||
const result = [];
|
||||
|
||||
if (!navListHtml) return result;
|
||||
if (!navListHtml.children) return result;
|
||||
|
||||
for (let i = 0; i < navListHtml.children.length; i++) {
|
||||
result.push(this.navItem(navListHtml.children[i], parent));
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -180,7 +188,7 @@ class Navigation {
|
|||
* @param {element} item
|
||||
* @return {object} navItem
|
||||
*/
|
||||
navItem(item){
|
||||
navItem(item, parent) {
|
||||
let id = item.getAttribute("id") || undefined;
|
||||
let content = filterChildren(item, "a", true);
|
||||
|
||||
|
@ -194,27 +202,11 @@ class Navigation {
|
|||
id = src;
|
||||
}
|
||||
let text = content.textContent || "";
|
||||
|
||||
let subitems = [];
|
||||
let parentItem = getParentByTagName(item, "li");
|
||||
let parent;
|
||||
|
||||
if (parentItem) {
|
||||
parent = parentItem.getAttribute("id");
|
||||
if (!parent) {
|
||||
const parentContent = filterChildren(parentItem, "a", true);
|
||||
parent = parentContent && parentContent.getAttribute("href");
|
||||
}
|
||||
}
|
||||
|
||||
while (!parent && parentItem) {
|
||||
parentItem = getParentByTagName(parentItem, "li");
|
||||
if (parentItem) {
|
||||
parent = parentItem.getAttribute("id");
|
||||
if (!parent) {
|
||||
const parentContent = filterChildren(parentItem, "a", true);
|
||||
parent = parentContent && parentContent.getAttribute("href");
|
||||
}
|
||||
}
|
||||
let nested = filterChildren(item, "ol", true);
|
||||
if (nested) {
|
||||
subitems = this.parseNavList(nested, id);
|
||||
}
|
||||
|
||||
return {
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue