dreader-application/dreader/html_generator.py
2025-11-12 18:52:08 +00:00

764 lines
28 KiB
Python

"""
HTML generation functions for dreader UI.
Generates HTML strings programmatically for library view, reader view,
and various overlays (settings, TOC, etc.) that can be passed to a HAL
for rendering.
"""
from pathlib import Path
from typing import List, Dict, Optional
import base64
from io import BytesIO
def generate_library_html(books: List[Dict[str, str]], save_covers_to_disk: bool = False) -> str:
"""
Generate HTML for the library view showing all books in a simple table.
Args:
books: List of book dictionaries with keys:
- title: Book title
- author: Book author
- filename: EPUB filename
- cover_data: Optional base64 encoded cover image
- cover_path: Optional path to saved cover image (if save_covers_to_disk=True)
save_covers_to_disk: If True, expect cover_path instead of cover_data
Returns:
Complete HTML string for library view
"""
# Build table rows
rows = []
for book in books:
# Add cover image cell if available
if save_covers_to_disk and book.get('cover_path'):
cover_cell = f'<td><img src="{book["cover_path"]}" width="150"/></td>'
elif book.get('cover_data'):
cover_cell = f'<td><img src="data:image/png;base64,{book["cover_data"]}" width="150"/></td>'
else:
cover_cell = '<td>[No cover]</td>'
# Add book info cell
info_cell = f'<td><b>{book["title"]}</b><br/>{book["author"]}</td>'
rows.append(f'<tr>{cover_cell}{info_cell}</tr>')
table_html = '\n'.join(rows)
return f'''
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Library</title>
</head>
<body>
<h1>My Library</h1>
<p>{len(books)} books</p>
<table>
{table_html}
</table>
</body>
</html>'''
def generate_reader_html(book_title: str, book_author: str, page_image_data: str) -> str:
"""
Generate HTML for the reader view with page display.
Args:
book_title: Title of current book
book_author: Author of current book
page_image_data: Base64 encoded page image
Returns:
Complete HTML string for reader view (page layer only)
"""
html = f'''
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>{book_title}</title>
<style>
* {{
margin: 0;
padding: 0;
box-sizing: border-box;
}}
body {{
font-family: Arial, sans-serif;
background-color: #2c2c2c;
display: flex;
flex-direction: column;
height: 100vh;
}}
.header {{
background-color: #1a1a1a;
color: white;
padding: 10px 20px;
display: flex;
justify-content: space-between;
align-items: center;
}}
.book-info {{
flex: 1;
}}
.book-title {{
font-weight: bold;
font-size: 16px;
}}
.book-author {{
font-size: 12px;
color: #aaa;
}}
.header-buttons {{
display: flex;
gap: 10px;
}}
.header-button {{
background-color: #444;
color: white;
border: none;
padding: 8px 16px;
border-radius: 4px;
cursor: pointer;
}}
.header-button:hover {{
background-color: #555;
}}
.page-container {{
flex: 1;
display: flex;
align-items: center;
justify-content: center;
padding: 20px;
}}
.page-image {{
max-width: 100%;
max-height: 100%;
box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}}
.footer {{
background-color: #1a1a1a;
color: white;
padding: 10px 20px;
display: flex;
justify-content: space-between;
align-items: center;
}}
.nav-button {{
background-color: #444;
color: white;
border: none;
padding: 10px 20px;
border-radius: 4px;
cursor: pointer;
font-size: 16px;
}}
.nav-button:hover {{
background-color: #555;
}}
</style>
</head>
<body>
<div class="header">
<div class="book-info">
<div class="book-title">{book_title}</div>
<div class="book-author">{book_author}</div>
</div>
<div class="header-buttons">
<button class="header-button" id="btn-library">Library</button>
<button class="header-button" id="btn-toc">Contents</button>
<button class="header-button" id="btn-settings">Settings</button>
</div>
</div>
<div class="page-container">
<img src="data:image/png;base64,{page_image_data}" alt="Page" class="page-image">
</div>
<div class="footer">
<button class="nav-button" id="btn-prev">← Previous</button>
<div id="page-info"></div>
<button class="nav-button" id="btn-next">Next →</button>
</div>
</body>
</html>
'''
return html
def generate_settings_overlay(
font_scale: float = 1.0,
line_spacing: int = 5,
inter_block_spacing: int = 15,
word_spacing: int = 0,
font_family: str = "Default",
page_size: tuple = (800, 1200)
) -> str:
"""
Generate HTML for the settings overlay with current values.
Uses simple paragraphs with links, similar to TOC overlay,
since pyWebLayout doesn't support HTML tables.
Args:
font_scale: Current font scale (e.g., 1.0 = 100%, 1.2 = 120%)
line_spacing: Current line spacing in pixels
inter_block_spacing: Current inter-block spacing in pixels
word_spacing: Current word spacing in pixels
font_family: Current font family ("Default", "SERIF", "SANS", "MONOSPACE")
page_size: Page dimensions (width, height) for sizing the overlay
Returns:
HTML string for settings overlay with clickable controls
"""
# Format current values for display
font_percent = int(font_scale * 100)
# Map font family names to display names
font_display_names = {
"Default": "Document Default",
"SERIF": "Serif",
"SANS": "Sans-Serif",
"MONOSPACE": "Monospace"
}
font_family_display = font_display_names.get(font_family, font_family)
html = f'''
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Settings</title>
</head>
<body style="background-color: white; margin: 0; padding: 25px; font-family: Arial, sans-serif;">
<h1 style="color: #000; margin: 0 0 8px 0; font-size: 24px; text-align: center; font-weight: bold;">
Settings
</h1>
<p style="text-align: center; color: #666; margin: 0 0 15px 0; padding-bottom: 12px;
border-bottom: 2px solid #ccc; font-size: 13px;">
Adjust reading preferences
</p>
<div style="margin: 15px 0;">
<p style="padding: 12px; margin: 5px 0; background-color: #f0f0f0; border-left: 3px solid #6f42c1;">
<b>Font Family: {font_family_display}</b>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:font_family_default" style="text-decoration: none; color: #000; display: block; padding: 12px;">Document Default</a>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:font_family_serif" style="text-decoration: none; color: #000; display: block; padding: 12px;">Serif</a>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:font_family_sans" style="text-decoration: none; color: #000; display: block; padding: 12px;">Sans-Serif</a>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:font_family_monospace" style="text-decoration: none; color: #000; display: block; padding: 12px;">Monospace</a>
</p>
<p style="padding: 12px; margin: 5px 0; background-color: #f0f0f0; border-left: 3px solid #007bff;">
<b>Font Size: {font_percent}%</b>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:font_decrease" style="text-decoration: none; color: #000; display: block; padding: 12px;">Decrease [ - ]</a>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:font_increase" style="text-decoration: none; color: #000; display: block; padding: 12px;">Increase [ + ]</a>
</p>
<p style="padding: 12px; margin: 5px 0; background-color: #f0f0f0; border-left: 3px solid #28a745;">
<b>Line Spacing: {line_spacing}px</b>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:line_spacing_decrease" style="text-decoration: none; color: #000; display: block; padding: 12px;">Decrease [ - ]</a>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:line_spacing_increase" style="text-decoration: none; color: #000; display: block; padding: 12px;">Increase [ + ]</a>
</p>
<p style="padding: 12px; margin: 5px 0; background-color: #f0f0f0; border-left: 3px solid #17a2b8;">
<b>Paragraph Spacing: {inter_block_spacing}px</b>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:block_spacing_decrease" style="text-decoration: none; color: #000; display: block; padding: 12px;">Decrease [ - ]</a>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:block_spacing_increase" style="text-decoration: none; color: #000; display: block; padding: 12px;">Increase [ + ]</a>
</p>
<p style="padding: 12px; margin: 5px 0; background-color: #f0f0f0; border-left: 3px solid #ffc107;">
<b>Word Spacing: {word_spacing}px</b>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:word_spacing_decrease" style="text-decoration: none; color: #000; display: block; padding: 12px;">Decrease [ - ]</a>
</p>
<p style="margin: 5px 0; background-color: #f0f0f0;">
<a href="setting:word_spacing_increase" style="text-decoration: none; color: #000; display: block; padding: 12px;">Increase [ + ]</a>
</p>
</div>
<div style="margin: 20px 0;">
<p style="margin: 5px 0; background-color: #dc3545; text-align: center; border-radius: 5px;">
<a href="action:back_to_library" style="text-decoration: none; color: white; font-weight: bold; font-size: 14px; display: block; padding: 15px;">◄ Back to Library</a>
</p>
</div>
<p style="text-align: center; margin: 15px 0 0 0; padding-top: 12px;
border-top: 2px solid #ccc; color: #888; font-size: 11px;">
Changes apply in real-time • Tap outside to close
</p>
</body>
</html>
'''
return html
def generate_toc_overlay(
chapters: List[Dict],
page_size: tuple = (800, 1200),
toc_page: int = 0,
toc_items_per_page: int = 10
) -> str:
"""
Generate HTML for the table of contents overlay.
Args:
chapters: List of chapter dictionaries with keys:
- index: Chapter index
- title: Chapter title
page_size: Page dimensions (width, height) for sizing the overlay
toc_page: Current page number (0-indexed)
toc_items_per_page: Number of items to show per page
Returns:
HTML string for TOC overlay (60% popup with transparent background)
"""
# Calculate pagination
toc_total_pages = (len(chapters) + toc_items_per_page - 1) // toc_items_per_page if chapters else 1
toc_start = toc_page * toc_items_per_page
toc_end = min(toc_start + toc_items_per_page, len(chapters))
toc_paginated = chapters[toc_start:toc_end]
# Build chapter list items with clickable links for pyWebLayout query
chapter_items = []
for i, chapter in enumerate(toc_paginated):
title = chapter["title"]
# Use original chapter number (not the paginated index)
chapter_num = toc_start + i + 1
# Wrap each row in a paragraph with an inline link
# For very short titles (I, II), pad the link text to ensure it's clickable
link_text = f'{chapter_num}. {title}'
if len(title) <= 2:
# Add extra padding spaces inside the link to make it easier to click
link_text = f'{chapter_num}. {title} ' # Extra spaces for padding
chapter_items.append(
f'<p style="padding: 12px; margin: 5px 0; background-color: #f0f0f0; '
f'border-left: 3px solid #000;">'
f'<a href="chapter:{chapter["index"]}" style="text-decoration: none; color: #000;">'
f'{link_text}</a></p>'
)
# Generate pagination controls
toc_pagination = ""
if toc_total_pages > 1:
prev_disabled = 'opacity: 0.3; pointer-events: none;' if toc_page == 0 else ''
next_disabled = 'opacity: 0.3; pointer-events: none;' if toc_page >= toc_total_pages - 1 else ''
toc_pagination = f'''
<div style="display: flex; justify-content: space-between; align-items: center; margin-top: 15px; padding-top: 12px; border-top: 2px solid #ccc;">
<a href="page:prev" style="text-decoration: none; color: #000; display: block; padding: 10px 20px; background-color: #e0e0e0; border-radius: 4px; font-weight: bold; {prev_disabled}">
← Prev
</a>
<span style="color: #666; font-size: 13px;">
Page {toc_page + 1} of {toc_total_pages}
</span>
<a href="page:next" style="text-decoration: none; color: #000; display: block; padding: 10px 20px; background-color: #e0e0e0; border-radius: 4px; font-weight: bold; {next_disabled}">
Next →
</a>
</div>
'''
# Render simple white panel - compositing will be done by OverlayManager
html = f'''
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Table of Contents</title>
</head>
<body style="background-color: white; margin: 0; padding: 25px; font-family: Arial, sans-serif;">
<h1 style="color: #000; margin: 0 0 8px 0; font-size: 24px; text-align: center; font-weight: bold;">
Table of Contents
</h1>
<p style="text-align: center; color: #666; margin: 0 0 15px 0; padding-bottom: 12px;
border-bottom: 2px solid #ccc; font-size: 13px;">
{len(chapters)} chapters
</p>
<div style="min-height: 400px;">
{"".join(chapter_items)}
</div>
{toc_pagination}
<p style="text-align: center; margin: 15px 0 0 0; padding-top: 12px;
border-top: 2px solid #ccc; color: #888; font-size: 11px;">
Tap a chapter to navigate • Tap outside to close
</p>
</body>
</html>
'''
return html
def generate_bookmarks_overlay(bookmarks: List[Dict]) -> str:
"""
Generate HTML for the bookmarks overlay.
Args:
bookmarks: List of bookmark dictionaries with keys:
- name: Bookmark name
- position: Position info
Returns:
HTML string for bookmarks overlay
"""
bookmark_rows = []
for bookmark in bookmarks:
bookmark_rows.append(f'''
<tr class="bookmark-row" data-bookmark-name="{bookmark['name']}">
<td class="bookmark-cell">
<div class="bookmark-name">{bookmark['name']}</div>
<div class="bookmark-position">{bookmark.get('position', '')}</div>
</td>
<td class="bookmark-actions">
<button class="action-button delete-button" data-bookmark="{bookmark['name']}">Delete</button>
</td>
</tr>
''')
html = f'''
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Bookmarks</title>
<style>
* {{
margin: 0;
padding: 0;
box-sizing: border-box;
}}
body {{
font-family: Arial, sans-serif;
background-color: rgba(0, 0, 0, 0.7);
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
}}
.overlay-panel {{
background-color: white;
border-radius: 8px;
box-shadow: 0 4px 16px rgba(0,0,0,0.3);
padding: 20px;
min-width: 500px;
max-height: 80vh;
display: flex;
flex-direction: column;
}}
.overlay-header {{
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 20px;
padding-bottom: 10px;
border-bottom: 2px solid #ddd;
}}
.overlay-title {{
font-size: 24px;
font-weight: bold;
}}
.close-button {{
background-color: #dc3545;
color: white;
border: none;
padding: 8px 16px;
border-radius: 4px;
cursor: pointer;
}}
.close-button:hover {{
background-color: #c82333;
}}
.bookmarks-container {{
overflow-y: auto;
flex: 1;
}}
.bookmarks-table {{
width: 100%;
border-collapse: collapse;
}}
.bookmark-row {{
cursor: pointer;
}}
.bookmark-row:hover {{
background-color: #f0f0f0;
}}
.bookmark-cell {{
padding: 12px;
border-bottom: 1px solid #eee;
}}
.bookmark-name {{
font-weight: bold;
margin-bottom: 4px;
}}
.bookmark-position {{
font-size: 12px;
color: #666;
}}
.bookmark-actions {{
padding: 12px;
border-bottom: 1px solid #eee;
text-align: right;
width: 100px;
}}
.action-button {{
background-color: #dc3545;
color: white;
border: none;
padding: 6px 12px;
border-radius: 4px;
cursor: pointer;
font-size: 12px;
}}
.action-button:hover {{
background-color: #c82333;
}}
</style>
</head>
<body>
<div class="overlay-panel">
<div class="overlay-header">
<span class="overlay-title">Bookmarks</span>
<button class="close-button" id="btn-close">Close</button>
</div>
<div class="bookmarks-container">
<table class="bookmarks-table">
{"".join(bookmark_rows)}
</table>
</div>
</div>
</body>
</html>
'''
return html
def generate_navigation_overlay(
chapters: List[Dict],
bookmarks: List[Dict],
active_tab: str = "contents",
page_size: tuple = (800, 1200),
toc_page: int = 0,
toc_items_per_page: int = 10,
bookmarks_page: int = 0
) -> str:
"""
Generate HTML for the unified navigation overlay with Contents and Bookmarks tabs.
This combines TOC and Bookmarks into a single overlay with tab switching and pagination.
Tabs are clickable links that switch between contents (tab:contents) and bookmarks (tab:bookmarks).
Pagination buttons (page:next, page:prev) allow navigating through large lists.
Args:
chapters: List of chapter dictionaries with keys:
- index: Chapter index
- title: Chapter title
bookmarks: List of bookmark dictionaries with keys:
- name: Bookmark name
- position: Position info (optional)
active_tab: Which tab to show ("contents" or "bookmarks")
page_size: Page dimensions (width, height) for sizing the overlay
toc_page: Current page number for TOC (0-indexed)
toc_items_per_page: Number of items to show per page
bookmarks_page: Current page number for bookmarks (0-indexed)
Returns:
HTML string for navigation overlay with tab switching and pagination
"""
# Calculate pagination for chapters
toc_total_pages = (len(chapters) + toc_items_per_page - 1) // toc_items_per_page if chapters else 1
toc_start = toc_page * toc_items_per_page
toc_end = min(toc_start + toc_items_per_page, len(chapters))
toc_paginated = chapters[toc_start:toc_end]
# Build chapter list items with clickable links
chapter_items = []
for i, chapter in enumerate(toc_paginated):
title = chapter["title"]
# Use original chapter number (not the paginated index)
chapter_num = toc_start + i + 1
link_text = f'{chapter_num}. {title}'
if len(title) <= 2:
link_text = f'{chapter_num}. {title} ' # Extra spaces for padding
chapter_items.append(
f'<p style="margin: 5px 0; background-color: #f0f0f0; border-left: 3px solid #000;">'
f'<a href="chapter:{chapter["index"]}" style="text-decoration: none; color: #000; display: block; padding: 12px;">'
f'{link_text}</a></p>'
)
# Calculate pagination for bookmarks
bookmarks_total_pages = (len(bookmarks) + toc_items_per_page - 1) // toc_items_per_page if bookmarks else 1
bookmarks_start = bookmarks_page * toc_items_per_page
bookmarks_end = min(bookmarks_start + toc_items_per_page, len(bookmarks))
bookmarks_paginated = bookmarks[bookmarks_start:bookmarks_end]
# Build bookmark list items with clickable links
bookmark_items = []
for bookmark in bookmarks_paginated:
name = bookmark['name']
position_text = bookmark.get('position', 'Saved position')
bookmark_items.append(
f'<p style="margin: 5px 0; background-color: #f0f0f0; border-left: 3px solid #000;">'
f'<a href="bookmark:{name}" style="text-decoration: none; color: #000; display: block; padding: 12px;">'
f'<span style="font-weight: bold; display: block;">{name}</span>'
f'<span style="font-size: 11px; color: #666;">{position_text}</span>'
f'</a></p>'
)
# Determine which content to show
contents_display = "block" if active_tab == "contents" else "none"
bookmarks_display = "block" if active_tab == "bookmarks" else "none"
# Style active tab
contents_tab_style = "background-color: #000; color: #fff;" if active_tab == "contents" else "background-color: #f0f0f0; color: #000;"
bookmarks_tab_style = "background-color: #000; color: #fff;" if active_tab == "bookmarks" else "background-color: #f0f0f0; color: #000;"
chapters_html = ''.join(chapter_items) if chapter_items else '<p style="padding: 20px; text-align: center; color: #999;">No chapters available</p>'
bookmarks_html = ''.join(bookmark_items) if bookmark_items else '<p style="padding: 20px; text-align: center; color: #999;">No bookmarks yet</p>'
# Generate pagination controls for TOC
toc_pagination = ""
if toc_total_pages > 1:
prev_disabled = 'opacity: 0.3; pointer-events: none;' if toc_page == 0 else ''
next_disabled = 'opacity: 0.3; pointer-events: none;' if toc_page >= toc_total_pages - 1 else ''
toc_pagination = f'''
<div style="display: flex; justify-content: space-between; align-items: center; margin-top: 15px; padding-top: 12px; border-top: 2px solid #ccc;">
<a href="page:prev" style="text-decoration: none; color: #000; display: block; padding: 10px 20px; background-color: #e0e0e0; border-radius: 4px; font-weight: bold; {prev_disabled}">
← Prev
</a>
<span style="color: #666; font-size: 13px;">
Page {toc_page + 1} of {toc_total_pages}
</span>
<a href="page:next" style="text-decoration: none; color: #000; display: block; padding: 10px 20px; background-color: #e0e0e0; border-radius: 4px; font-weight: bold; {next_disabled}">
Next →
</a>
</div>
'''
# Generate pagination controls for Bookmarks
bookmarks_pagination = ""
if bookmarks_total_pages > 1:
prev_disabled = 'opacity: 0.3; pointer-events: none;' if bookmarks_page == 0 else ''
next_disabled = 'opacity: 0.3; pointer-events: none;' if bookmarks_page >= bookmarks_total_pages - 1 else ''
bookmarks_pagination = f'''
<div style="display: flex; justify-content: space-between; align-items: center; margin-top: 15px; padding-top: 12px; border-top: 2px solid #ccc;">
<a href="page:prev" style="text-decoration: none; color: #000; display: block; padding: 10px 20px; background-color: #e0e0e0; border-radius: 4px; font-weight: bold; {prev_disabled}">
← Prev
</a>
<span style="color: #666; font-size: 13px;">
Page {bookmarks_page + 1} of {bookmarks_total_pages}
</span>
<a href="page:next" style="text-decoration: none; color: #000; display: block; padding: 10px 20px; background-color: #e0e0e0; border-radius: 4px; font-weight: bold; {next_disabled}">
Next →
</a>
</div>
'''
html = f'''
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Navigation</title>
</head>
<body style="background-color: white; margin: 0; padding: 0; font-family: Arial, sans-serif;">
<!-- Tab Bar -->
<div style="display: flex; border-bottom: 2px solid #ccc; background-color: #f8f8f8;">
<a href="tab:contents"
style="flex: 1; padding: 15px; text-align: center; font-weight: bold;
text-decoration: none; border-right: 1px solid #ccc; {contents_tab_style}">
Contents
</a>
<a href="tab:bookmarks"
style="flex: 1; padding: 15px; text-align: center; font-weight: bold;
text-decoration: none; {bookmarks_tab_style}">
Bookmarks
</a>
</div>
<!-- Contents Tab Content -->
<div id="contents-tab" style="padding: 25px; display: {contents_display};">
<h2 style="color: #000; margin: 0 0 15px 0; font-size: 20px; text-align: center;">
Table of Contents
</h2>
<p style="text-align: center; color: #666; margin: 0 0 15px 0; padding-bottom: 12px;
border-bottom: 2px solid #ccc; font-size: 13px;">
{len(chapters)} chapters
</p>
<div style="min-height: 400px;">
{chapters_html}
</div>
{toc_pagination}
</div>
<!-- Bookmarks Tab Content -->
<div id="bookmarks-tab" style="padding: 25px; display: {bookmarks_display};">
<h2 style="color: #000; margin: 0 0 15px 0; font-size: 20px; text-align: center;">
Bookmarks
</h2>
<p style="text-align: center; color: #666; margin: 0 0 15px 0; padding-bottom: 12px;
border-bottom: 2px solid #ccc; font-size: 13px;">
{len(bookmarks)} saved
</p>
<div style="min-height: 400px;">
{bookmarks_html}
</div>
{bookmarks_pagination}
</div>
<!-- Close Button (bottom right) -->
<div style="position: fixed; bottom: 20px; right: 20px;">
<a href="action:close"
style="display: inline-block; padding: 12px 24px; background-color: #dc3545;
color: white; text-decoration: none; border-radius: 4px; font-weight: bold;
box-shadow: 0 2px 4px rgba(0,0,0,0.2);">
Close
</a>
</div>
</body>
</html>
'''
return html