convert HTML + print exporters from DOMExporter to string concatenation

fiduswriter/book/migrations/0017_book_styles.py

@@ -0,0 +1,30 @@
+# Generated by Django 5.1.2 on 2024-12-10 11:49
+
+from django.db import migrations
+
+
+def article_to_doc_selector(apps, schema_editor):
+    BookStyle = apps.get_model("book", "BookStyle")
+    for style in BookStyle.objects.all():
+        style.contents = style.contents.replace(".article-", ".doc-")
+        style.save()
+
+
+def doc_to_article_selector(apps, schema_editor):
+    BookStyle = apps.get_model("book", "BookStyle")
+    for style in BookStyle.objects.all():
+        style.contents = style.contents.replace(".doc-", ".article-")
+        style.save()
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("book", "0016_book_docx_template"),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            article_to_doc_selector,
+            doc_to_article_selector,
+        ),
+    ]

fiduswriter/book/static/js/modules/books/exporter/epub/index.js

@@ -19,6 +19,7 @@ import {
 } from "./templates"
 import {
     addCategoryLabels,
+    modifyImages,
     orderLinks,
     setLinks,
     styleEpubFootnotes
@@ -34,7 +35,6 @@ import {removeHidden} from "../../../exporter/tools/doc_content"
 import {createSlug} from "../../../exporter/tools/file"
 import {node2Obj, obj2Node} from "../../../exporter/tools/json"
 import {ZipFileCreator} from "../../../exporter/tools/zip"
-import {modifyImages} from "../html/tools"
 
 export class EpubBookExporter extends DOMExporter {
     constructor(schema, csl, bookStyles, book, user, docList, updated) {

fiduswriter/book/static/js/modules/books/exporter/epub/tools.js

@@ -134,3 +134,34 @@ export function addCategoryLabels(htmlEl, language, footnote = false) {
         })
     return htmlEl
 }
+
+export const modifyImages = htmlEl => {
+    const imageLinks = htmlEl.querySelectorAll("img"),
+        images = []
+
+    imageLinks.forEach((el, index) => {
+        const src = el.getAttribute("src").split("?")[0]
+        let filename = `images/${src.split("/").pop()}`
+        // JPGs are output as PNG elements as well.
+        if (filename === "images/") {
+            // name was not retrievable so we give the image a unique numerical
+            // name like 1.png, 2.jpg, 3.svg, etc. .
+            filename = `images/${index}`
+        }
+
+        const newImg = document.createElement("img")
+        // We set the src of the image as "data-src" for now so that the browser
+        // won't try to load the file immediately
+        newImg.setAttribute("data-src", filename)
+        el.parentNode.replaceChild(newImg, el)
+
+        if (!images.find(image => image.filename === filename)) {
+            images.push({
+                filename,
+                url: src
+            })
+        }
+    })
+
+    return images
+}