Content server: Add an option to control which book list mode is used by default for new users (Preferences->Sharing over the net->Choose book list mode)

src/calibre/srv/code.py

@@ -151,6 +151,7 @@ def basic_interface_data(ctx, rd):
         'custom_list_template': getattr(ctx, 'custom_list_template', None) or custom_list_template(),
         'search_the_net_urls': getattr(ctx, 'search_the_net_urls', None) or [],
         'num_per_page': rd.opts.num_per_page,
+        'default_book_list_mode': rd.opts.book_list_mode,
         'donate_link': localize_website_link('https://calibre-ebook.com/donate')
     }
     ans['library_map'], ans['default_library_id'] = ctx.library_info(rd)

src/calibre/srv/opts.py

@@ -187,7 +187,10 @@ raw_options = (
       ' option, any fields not in this list will not be displayed. For example: {}').format(
       'my_rating,my_tags'),
 
-
+    _('Choose the default book list mode'),
+    'book_list_mode', Choices('cover_grid', 'details_list', 'custom_list'),
+    _('Set the default book list mode that will be used for new users. Individual users'
+      ' can override the default in their own settings. The default is to use a cover grid.'),
 )
 assert len(raw_options) % 4 == 0
 

src/pyj/book_list/local_books.pyj

@@ -5,11 +5,11 @@ from __python__ import bound_methods, hash_literals
 from elementmaker import E
 from gettext import gettext as _
 
-from book_list.globals import get_db, get_session_data
+from book_list.globals import get_db
 from book_list.router import home, open_book
 from book_list.top_bar import create_top_bar
 from book_list.ui import set_panel_handler
-from book_list.views import DEFAULT_MODE, setup_view_mode
+from book_list.views import DEFAULT_MODE, setup_view_mode, get_view_mode
 from dom import clear, ensure_id
 from modals import create_custom_dialog, error_dialog
 from utils import conditional_timeout
@@ -127,7 +127,7 @@ def create_books_list(container, books):
     book_list_data.mode = None
     book_list_data.thumbnail_cache = {}
     container.appendChild(E.div(data_component='book_list'))
-    apply_view_mode(get_session_data().get('view_mode'))
+    apply_view_mode(get_view_mode())
 
 def show_recent_stage2(books):
     container = document.getElementById(this)

src/pyj/book_list/views.pyj

@@ -131,6 +131,14 @@ def render_ids(book_ids):
                 book_list_data.append_item(div, child)
 
 
+def get_view_mode():
+    idata = get_interface_data()
+    mode = get_session_data().get('view_mode', idata.default_book_list_mode)
+    if mode not in ('cover_grid', 'details_list', 'custom_list'):
+        mode = DEFAULT_MODE
+    return mode
+
+
 def setup_view_mode(mode, book_list_data):
     if mode not in ALLOWED_MODES:
         mode = DEFAULT_MODE
@@ -259,7 +267,7 @@ def create_books_list(container):
     container.appendChild(E.div(data_component='book_list'))
     container.appendChild(E.div(data_component='more_button'))
     show_top_message()
-    apply_view_mode(get_session_data().get('view_mode'))
+    apply_view_mode(get_view_mode())
     create_more_button(container.lastChild)
     add_button(container.parentNode, icon='plus', action=show_subsequent_panel.bind(None, 'book_list^add'), tooltip=_('Add books'))
     add_button(container.parentNode, icon='sort-amount-desc', action=show_subsequent_panel.bind(None, 'book_list^sort'), tooltip=_('Sort books'))
@@ -419,7 +427,7 @@ def create_mode_panel(container_id):
     container = document.getElementById(container_id)
     create_top_bar(container, title=_('Choose book list mode…'), action=back, icon='close')
     items = []
-    current_mode = get_session_data().get('view_mode')
+    current_mode = get_view_mode()
 
     def ci(title, desc, name):
         ic = 'check' if name is current_mode else None

src/pyj/session.pyj

@@ -168,6 +168,7 @@ default_interface_data = {
     'gui_last_modified_display_format': 'dd MMM yyyy',
     'use_roman_numerals_for_series_number': True,
     'default_library_id': None,
+    'default_book_list_mode': defaults.view_mode,
     'library_map': None,
     'search_the_net_urls': [],
     'donate_link': 'https://calibre-ebook.com/donate',