yetangitu/epub.js
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Code Issues Releases Wiki Activity

Allow loading epub from container xml url

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This commit is contained in:
fredc 2022-04-08 13:52:15 -07:00
parent dce1d943a9
commit 9e13f62a89
2 changed files with 18 additions and 6 deletions
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22
src/epub/epub.js
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@ -5,7 +5,7 @@ import Packaging from "./packaging.js";
import Navigation from "./navigation.js";
import PageList from "./pagelist.js";
import Spine from "./spine.js";
import { extension } from "../utils/url.js";
import { extension, resolve } from "../utils/url.js";
import EpubCFI from "../utils/epubcfi.js";
const CONTAINER_PATH = "META-INF/container.xml";
@ -13,7 +13,8 @@ const IBOOKS_DISPLAY_OPTIONS_PATH = "META-INF/com.apple.ibooks.display-options.x
const INPUT_TYPE = {
EPUB: "epub",
OPF: "opf",
DIRECTORY: "directory"
DIRECTORY: "directory",
CONTAINER: "container"
};
class Epub extends Publication {
@ -45,6 +46,10 @@ class Epub extends Publication {
if (ext === "opf") {
return INPUT_TYPE.OPF;
}
if (ext === "xml") {
return INPUT_TYPE.CONTAINER;
}
}
/**
@ -55,9 +60,9 @@ class Epub extends Publication {
*/
async loadContainer(url) {
const xml = await this.load(url);
this.container = new Container(xml);
return this.container.packagePath;
return this.container;
}
/**
@ -170,16 +175,21 @@ class Epub extends Publication {
const type = what || this.determineType(url);
let packaging;
this.url = url;
if (type === INPUT_TYPE.EPUB) {
throw new Error("Epub must be unarchived");
}
if (type === INPUT_TYPE.DIRECTORY) {
const container = await this.loadContainer(CONTAINER_PATH);
this.url = url + container.packagePath;
packaging = await this.loadPackaging(container.packagePath);
} else if (type === INPUT_TYPE.CONTAINER) {
const container = await this.loadContainer(url);
const packageUrl = resolve(url, "../" + container.packagePath);
this.url = packageUrl;
packaging = await this.loadPackaging(packageUrl);
} else {
this.url = url;
packaging = await this.loadPackaging(url);
}

2
src/utils/url.js
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@ -16,6 +16,8 @@ export function createUrl(inputUrl, base) {
if (typeof(window) !== "undefined" &&
typeof(window.location) !== "undefined") {
locationBase = window.location.href;
} else {
locationBase = "http://example.com"; // Prevent URL error
}
return new URL(inputUrl, locationBase);
} else {