534 lines
15 KiB
Python
534 lines
15 KiB
Python
"""
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HTML generation functions for dreader UI.
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Generates HTML strings programmatically for library view, reader view,
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and various overlays (settings, TOC, etc.) that can be passed to a HAL
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for rendering.
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"""
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from pathlib import Path
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from typing import List, Dict, Optional
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import base64
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from io import BytesIO
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def generate_library_html(books: List[Dict[str, str]], save_covers_to_disk: bool = False) -> str:
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"""
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Generate HTML for the library view showing all books in a simple table.
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Args:
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books: List of book dictionaries with keys:
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- title: Book title
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- author: Book author
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- filename: EPUB filename
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- cover_data: Optional base64 encoded cover image
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- cover_path: Optional path to saved cover image (if save_covers_to_disk=True)
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save_covers_to_disk: If True, expect cover_path instead of cover_data
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Returns:
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Complete HTML string for library view
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"""
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# Build table rows
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rows = []
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for book in books:
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# Add cover image cell if available
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if save_covers_to_disk and book.get('cover_path'):
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cover_cell = f'<td><img src="{book["cover_path"]}" width="150"/></td>'
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elif book.get('cover_data'):
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cover_cell = f'<td><img src="data:image/png;base64,{book["cover_data"]}" width="150"/></td>'
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else:
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cover_cell = '<td>[No cover]</td>'
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# Add book info cell
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info_cell = f'<td><b>{book["title"]}</b><br/>{book["author"]}</td>'
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rows.append(f'<tr>{cover_cell}{info_cell}</tr>')
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table_html = '\n'.join(rows)
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return f'''
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>Library</title>
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</head>
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<body>
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<h1>My Library</h1>
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<p>{len(books)} books</p>
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<table>
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{table_html}
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</table>
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</body>
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</html>'''
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def generate_reader_html(book_title: str, book_author: str, page_image_data: str) -> str:
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"""
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Generate HTML for the reader view with page display.
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Args:
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book_title: Title of current book
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book_author: Author of current book
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page_image_data: Base64 encoded page image
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Returns:
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Complete HTML string for reader view (page layer only)
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"""
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html = f'''
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>{book_title}</title>
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<style>
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* {{
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}}
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body {{
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font-family: Arial, sans-serif;
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background-color: #2c2c2c;
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display: flex;
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flex-direction: column;
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height: 100vh;
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}}
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.header {{
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background-color: #1a1a1a;
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color: white;
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padding: 10px 20px;
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display: flex;
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justify-content: space-between;
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align-items: center;
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}}
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.book-info {{
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flex: 1;
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}}
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.book-title {{
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font-weight: bold;
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font-size: 16px;
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}}
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.book-author {{
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font-size: 12px;
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color: #aaa;
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}}
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.header-buttons {{
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display: flex;
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gap: 10px;
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}}
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.header-button {{
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background-color: #444;
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color: white;
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border: none;
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padding: 8px 16px;
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border-radius: 4px;
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cursor: pointer;
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}}
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.header-button:hover {{
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background-color: #555;
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}}
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.page-container {{
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flex: 1;
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display: flex;
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align-items: center;
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justify-content: center;
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padding: 20px;
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}}
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.page-image {{
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max-width: 100%;
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max-height: 100%;
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box-shadow: 0 4px 8px rgba(0,0,0,0.3);
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}}
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.footer {{
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background-color: #1a1a1a;
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color: white;
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padding: 10px 20px;
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display: flex;
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justify-content: space-between;
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align-items: center;
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}}
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.nav-button {{
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background-color: #444;
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color: white;
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border: none;
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padding: 10px 20px;
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border-radius: 4px;
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cursor: pointer;
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font-size: 16px;
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}}
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.nav-button:hover {{
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background-color: #555;
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}}
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</style>
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</head>
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<body>
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<div class="header">
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<div class="book-info">
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<div class="book-title">{book_title}</div>
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<div class="book-author">{book_author}</div>
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</div>
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<div class="header-buttons">
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<button class="header-button" id="btn-library">Library</button>
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<button class="header-button" id="btn-toc">Contents</button>
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<button class="header-button" id="btn-settings">Settings</button>
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</div>
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</div>
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<div class="page-container">
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<img src="data:image/png;base64,{page_image_data}" alt="Page" class="page-image">
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</div>
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<div class="footer">
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<button class="nav-button" id="btn-prev">← Previous</button>
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<div id="page-info"></div>
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<button class="nav-button" id="btn-next">Next →</button>
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</div>
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</body>
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</html>
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'''
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return html
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def generate_settings_overlay() -> str:
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"""
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Generate HTML for the settings overlay.
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Returns:
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HTML string for settings overlay
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"""
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html = '''
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Settings</title>
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<style>
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: Arial, sans-serif;
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background-color: rgba(0, 0, 0, 0.7);
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display: flex;
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align-items: center;
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justify-content: center;
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height: 100vh;
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}
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.overlay-panel {
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background-color: white;
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border-radius: 8px;
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box-shadow: 0 4px 16px rgba(0,0,0,0.3);
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padding: 20px;
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min-width: 400px;
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}
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.overlay-header {
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display: flex;
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justify-content: space-between;
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align-items: center;
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margin-bottom: 20px;
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padding-bottom: 10px;
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border-bottom: 2px solid #ddd;
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}
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.overlay-title {
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font-size: 24px;
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font-weight: bold;
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}
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.close-button {
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background-color: #dc3545;
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color: white;
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border: none;
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padding: 8px 16px;
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border-radius: 4px;
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cursor: pointer;
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}
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.close-button:hover {
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background-color: #c82333;
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}
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.settings-table {
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width: 100%;
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border-collapse: collapse;
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}
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.settings-table td {
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padding: 10px;
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border-bottom: 1px solid #eee;
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}
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.setting-label {
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font-weight: bold;
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width: 40%;
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}
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.setting-control {
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width: 60%;
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text-align: right;
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}
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.control-button {
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background-color: #007bff;
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color: white;
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border: none;
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padding: 8px 16px;
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border-radius: 4px;
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cursor: pointer;
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margin-left: 5px;
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}
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.control-button:hover {
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background-color: #0056b3;
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}
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</style>
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</head>
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<body>
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<div class="overlay-panel">
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<div class="overlay-header">
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<span class="overlay-title">Settings</span>
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<button class="close-button" id="btn-close">Close</button>
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</div>
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<table class="settings-table">
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<tr>
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<td class="setting-label">Font Size</td>
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<td class="setting-control">
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<button class="control-button" id="btn-font-decrease">A-</button>
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<button class="control-button" id="btn-font-increase">A+</button>
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</td>
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</tr>
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<tr>
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<td class="setting-label">Line Spacing</td>
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<td class="setting-control">
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<button class="control-button" id="btn-spacing-decrease">-</button>
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<button class="control-button" id="btn-spacing-increase">+</button>
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</td>
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</tr>
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<tr>
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<td class="setting-label">Brightness</td>
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<td class="setting-control">
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<button class="control-button" id="btn-brightness-decrease">-</button>
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<button class="control-button" id="btn-brightness-increase">+</button>
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</td>
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</tr>
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<tr>
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<td class="setting-label">WiFi</td>
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<td class="setting-control">
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<button class="control-button" id="btn-wifi">Configure</button>
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</td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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'''
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return html
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def generate_toc_overlay(chapters: List[Dict], page_size: tuple = (800, 1200)) -> str:
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"""
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Generate HTML for the table of contents overlay.
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Args:
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chapters: List of chapter dictionaries with keys:
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- index: Chapter index
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- title: Chapter title
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page_size: Page dimensions (width, height) for sizing the overlay
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Returns:
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HTML string for TOC overlay (60% popup with transparent background)
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"""
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# Build chapter list items with clickable links for pyWebLayout query
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chapter_items = []
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for i, chapter in enumerate(chapters):
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title = chapter["title"]
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# Wrap each row in a paragraph with an inline link
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# For very short titles (I, II), pad the link text to ensure it's clickable
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link_text = f'{i+1}. {title}'
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if len(title) <= 2:
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# Add extra padding spaces inside the link to make it easier to click
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link_text = f'{i+1}. {title} ' # Extra spaces for padding
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chapter_items.append(
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f'<p style="padding: 12px; margin: 5px 0; background-color: #f0f0f0; '
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f'border-left: 3px solid #000;">'
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f'<a href="chapter:{chapter["index"]}" style="text-decoration: none; color: #000;">'
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f'{link_text}</a></p>'
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)
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# Render simple white panel - compositing will be done by OverlayManager
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html = f'''
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>Table of Contents</title>
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</head>
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<body style="background-color: white; margin: 0; padding: 25px; font-family: Arial, sans-serif;">
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<h1 style="color: #000; margin: 0 0 8px 0; font-size: 24px; text-align: center; font-weight: bold;">
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Table of Contents
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</h1>
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<p style="text-align: center; color: #666; margin: 0 0 15px 0; padding-bottom: 12px;
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border-bottom: 2px solid #ccc; font-size: 13px;">
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{len(chapters)} chapters
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</p>
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<div style="max-height: 600px; overflow-y: auto;">
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{"".join(chapter_items)}
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</div>
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<p style="text-align: center; margin: 15px 0 0 0; padding-top: 12px;
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border-top: 2px solid #ccc; color: #888; font-size: 11px;">
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Tap a chapter to navigate • Tap outside to close
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</p>
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</body>
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</html>
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'''
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return html
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def generate_bookmarks_overlay(bookmarks: List[Dict]) -> str:
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"""
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Generate HTML for the bookmarks overlay.
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Args:
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bookmarks: List of bookmark dictionaries with keys:
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- name: Bookmark name
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- position: Position info
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Returns:
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HTML string for bookmarks overlay
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"""
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bookmark_rows = []
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for bookmark in bookmarks:
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bookmark_rows.append(f'''
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<tr class="bookmark-row" data-bookmark-name="{bookmark['name']}">
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<td class="bookmark-cell">
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<div class="bookmark-name">{bookmark['name']}</div>
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<div class="bookmark-position">{bookmark.get('position', '')}</div>
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</td>
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<td class="bookmark-actions">
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<button class="action-button delete-button" data-bookmark="{bookmark['name']}">Delete</button>
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</td>
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</tr>
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''')
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html = f'''
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Bookmarks</title>
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<style>
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* {{
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}}
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body {{
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font-family: Arial, sans-serif;
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background-color: rgba(0, 0, 0, 0.7);
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display: flex;
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align-items: center;
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justify-content: center;
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height: 100vh;
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}}
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.overlay-panel {{
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background-color: white;
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border-radius: 8px;
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box-shadow: 0 4px 16px rgba(0,0,0,0.3);
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padding: 20px;
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min-width: 500px;
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max-height: 80vh;
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display: flex;
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flex-direction: column;
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}}
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.overlay-header {{
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display: flex;
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justify-content: space-between;
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align-items: center;
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margin-bottom: 20px;
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padding-bottom: 10px;
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border-bottom: 2px solid #ddd;
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}}
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.overlay-title {{
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font-size: 24px;
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font-weight: bold;
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}}
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.close-button {{
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background-color: #dc3545;
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color: white;
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border: none;
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padding: 8px 16px;
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border-radius: 4px;
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cursor: pointer;
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}}
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.close-button:hover {{
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background-color: #c82333;
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}}
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.bookmarks-container {{
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overflow-y: auto;
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flex: 1;
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}}
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.bookmarks-table {{
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width: 100%;
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border-collapse: collapse;
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}}
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.bookmark-row {{
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cursor: pointer;
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}}
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.bookmark-row:hover {{
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background-color: #f0f0f0;
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}}
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.bookmark-cell {{
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padding: 12px;
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border-bottom: 1px solid #eee;
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}}
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.bookmark-name {{
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font-weight: bold;
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margin-bottom: 4px;
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}}
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.bookmark-position {{
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font-size: 12px;
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color: #666;
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}}
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.bookmark-actions {{
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padding: 12px;
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border-bottom: 1px solid #eee;
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text-align: right;
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width: 100px;
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}}
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.action-button {{
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background-color: #dc3545;
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color: white;
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border: none;
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padding: 6px 12px;
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border-radius: 4px;
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cursor: pointer;
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font-size: 12px;
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}}
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.action-button:hover {{
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background-color: #c82333;
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}}
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</style>
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</head>
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<body>
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<div class="overlay-panel">
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<div class="overlay-header">
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<span class="overlay-title">Bookmarks</span>
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<button class="close-button" id="btn-close">Close</button>
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</div>
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<div class="bookmarks-container">
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<table class="bookmarks-table">
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{"".join(bookmark_rows)}
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</table>
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</div>
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</div>
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</body>
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</html>
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'''
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return html
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