changes

src/editor/extensions.ts

@@ -2,6 +2,7 @@ import type { Extensions } from "@tiptap/core";
 import StarterKit from "@tiptap/starter-kit";
 import Placeholder from "@tiptap/extension-placeholder";
 import { Figure } from "./figure";
+import { ParagraphIndent } from "./indent";
 
 export const editorExtensions: Extensions = [
   StarterKit.configure({
@@ -13,4 +14,5 @@ export const editorExtensions: Extensions = [
     placeholder: ({ node }) => (node.type.name === "heading" ? "" : "Begin your chapter…"),
   }),
   Figure,
+  ParagraphIndent,
 ];

src/editor/indent.ts

@@ -0,0 +1,42 @@
+import { Extension } from "@tiptap/core";
+
+export const ParagraphIndent = Extension.create({
+  name: "paragraphIndent",
+
+  addGlobalAttributes() {
+    return [
+      {
+        types: ["paragraph"],
+        attributes: {
+          indent: {
+            default: false,
+            keepOnSplit: false,
+            parseHTML: (el) => el.getAttribute("data-indent") === "true",
+            renderHTML: (attrs) => (attrs.indent ? { "data-indent": "true" } : {}),
+          },
+        },
+      },
+    ];
+  },
+
+  addKeyboardShortcuts() {
+    return {
+      Tab: () => {
+        if (this.editor.isActive("listItem")) return false;
+        this.editor.commands.updateAttributes("paragraph", { indent: true });
+        return true;
+      },
+      "Shift-Tab": () => {
+        if (this.editor.isActive("listItem")) return false;
+        this.editor.commands.updateAttributes("paragraph", { indent: false });
+        return true;
+      },
+      Backspace: () => {
+        const { $from, empty } = this.editor.state.selection;
+        if (!empty || $from.parentOffset !== 0) return false;
+        if ($from.parent.type.name !== "paragraph" || !$from.parent.attrs.indent) return false;
+        return this.editor.commands.updateAttributes("paragraph", { indent: false });
+      },
+    };
+  },
+});

src/export/epub.ts

@@ -80,8 +80,11 @@ function figure(node: JSONContent, paths: Map<string, string>): string {
 
 function block(node: JSONContent, paths: Map<string, string>): string {
   switch (node.type) {
-    case "paragraph":
-      return `<p>${inlines(node.content)}</p>`;
+    case "paragraph": {
+      const body = inlines(node.content);
+      if (!body.trim()) return "<p>&#160;</p>";
+      return `<p${node.attrs?.indent ? ' data-indent="true"' : ""}>${body}</p>`;
+    }
     case "heading":
       return node.attrs?.level === 3
         ? `<h3>${inlines(node.content)}</h3>`
@@ -363,14 +366,16 @@ body {
 p {
   margin: 0;
   text-align: justify;
-  text-indent: 1.3em;
   hyphens: auto;
   -webkit-hyphens: auto;
   -epub-hyphens: auto;
 }
 
+p[data-indent="true"] {
+  text-indent: 1.3em;
+}
+
 h1, h2, h3 {
-  text-indent: 0;
   hyphens: none;
   line-height: 1.25;
   font-weight: 500;
@@ -380,25 +385,11 @@ h2, h3 {
   margin: 1.4em 0 0.6em;
 }
 
-p + p {
-  text-indent: 1.3em;
-}
-
 .chapter-opener {
   text-align: center;
   margin: 3em 0 2.2em;
 }
 
-.chapter-opener p,
-header + p,
-h2 + p,
-h3 + p,
-blockquote + p,
-figure + p,
-hr + p {
-  text-indent: 0;
-}
-
 .eyebrow {
   text-transform: uppercase;
   letter-spacing: 0.28em;

src/export/typst.ts

@@ -66,8 +66,11 @@ function figure(node: JSONContent, paths: Map<string, string>): string {
 
 function block(node: JSONContent, paths: Map<string, string>): string {
   switch (node.type) {
-    case "paragraph":
-      return guardLineStart(inlines(node.content));
+    case "paragraph": {
+      const body = guardLineStart(inlines(node.content));
+      if (!body.trim()) return "~";
+      return node.attrs?.indent ? `#h(1.3em)${body}` : body;
+    }
     case "heading":
       return `#heading(level: ${node.attrs?.level ?? 2})[${inlines(node.content)}]`;
     case "blockquote":
@@ -104,7 +107,7 @@ function preamble(book: Book): string {
   binding: left,
 )
 #set text(font: "Literata", size: 11pt, lang: ${str(meta.language || "en")}, hyphenate: true)
-#set par(justify: true, leading: 0.72em, spacing: 0.72em, first-line-indent: (amount: 1.3em, all: false))
+#set par(justify: true, leading: 0.72em, spacing: 0.72em)
 #show heading: set text(font: "Literata", weight: "medium")
 #show heading.where(level: 1): set text(size: 22pt)
 #show heading.where(level: 2): set block(above: 1.4em, below: 0.6em)

src/styles/app.css

@@ -393,12 +393,10 @@ button {
   text-align: justify;
   hyphens: auto;
   -webkit-hyphens: auto;
-  text-indent: 1.3em;
 }
 
-.prose p:first-of-type,
-.prose .first {
-  text-indent: 0;
+.prose p[data-indent="true"] {
+  text-indent: 1.3em;
 }
 
 .prose .first::first-letter {
@@ -530,11 +528,14 @@ button {
   line-height: 1.5;
   text-align: justify;
   hyphens: auto;
-  text-indent: 1.2em;
   margin: 0;
   color: #2b2720;
 }
 
+.page p[data-indent="true"] {
+  text-indent: 1.2em;
+}
+
 .page .folio {
   text-align: center;
   font-family: var(--font-book);
@@ -596,10 +597,6 @@ button {
   min-height: 62vh;
 }
 
-.ProseMirror > p:first-child {
-  text-indent: 0;
-}
-
 .ProseMirror hr {
   border: none;
   border-top: 1px solid var(--line-strong);