From 2457241f119141e5cabb2a62db33fe06710df315 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 10 Oct 2010 23:00:46 -0600
Subject: [PATCH] Top level feed done

---
 resources/content_server/browse/browse.css  | 25 +++++++++++++++++
 resources/content_server/browse/browse.html |  2 +-
 resources/content_server/browse/browse.js   |  7 +++++
 src/calibre/library/server/browse.py        | 30 ++++++++++++++++++---
 src/calibre/library/server/cache.py         |  5 +++-
 5 files changed, 64 insertions(+), 5 deletions(-)

diff --git a/resources/content_server/browse/browse.css b/resources/content_server/browse/browse.css
index 4c36f36202..acf031d956 100644
--- a/resources/content_server/browse/browse.css
+++ b/resources/content_server/browse/browse.css
@@ -183,3 +183,28 @@ h2.library_name {
 
 /* }}} */
 
+
+/* Top level {{{ */
+.toplevel ul {
+    list-style-type: none;
+    margin: 0;
+    padding: 0;
+}
+
+.toplevel li {
+    margin: 0.75em;
+    padding: 0.75em;
+    text-align: center;
+    cursor: pointer;
+}
+
+.toplevel li:hover {
+    background-color: #d6d3c9;
+    font-weight: bold;
+}
+
+.toplevel li span { display: none }
+
+/* }}} */
+
+
diff --git a/resources/content_server/browse/browse.html b/resources/content_server/browse/browse.html
index 9507850b53..6a81504474 100644
--- a/resources/content_server/browse/browse.html
+++ b/resources/content_server/browse/browse.html
@@ -81,7 +81,7 @@
             <div>&nbsp;</div>
 
             <div id="main">
-                xxx
+                {main}
             </div>
             <div id="footer">
                 [{library_path}] Created by Kovid Goyal
diff --git a/resources/content_server/browse/browse.js b/resources/content_server/browse/browse.js
index 409dfa08ea..20b85df915 100644
--- a/resources/content_server/browse/browse.js
+++ b/resources/content_server/browse/browse.js
@@ -119,5 +119,12 @@ function init() {
 // Top-level feed {{{
 function toplevel() {
     $(".sort_select").hide();
+
+    $(".toplevel li").corner("15px");
+
+    $(".toplevel li").click(function() {
+        var href = $(this).children("span").html();
+        window.location = href;
+    });
 }
 // }}}
diff --git a/src/calibre/library/server/browse.py b/src/calibre/library/server/browse.py
index 028ef16b27..e058ccd4f3 100644
--- a/src/calibre/library/server/browse.py
+++ b/src/calibre/library/server/browse.py
@@ -63,13 +63,37 @@ class BrowseServer(object):
     # Catalogs {{{
     def browse_catalog(self, category=None):
         if category == None:
-            #categories = self.categories_cache()
+            categories = self.categories_cache()
+            category_meta = self.db.field_metadata
+            cats = [
+                    (_('Newest'), 'newest'),
+                    ]
+            def getter(x):
+                return category_meta[x]['name'].lower()
+            for category in sorted(categories,
+                                cmp=lambda x,y: cmp(getter(x), getter(y))):
+                if len(categories[category]) == 0:
+                    continue
+                if category == 'formats':
+                    continue
+                meta = category_meta.get(category, None)
+                if meta is None:
+                    continue
+                cats.append((meta['name'], category))
+            cats = ['<li title="{2} {0}">{0}<span>/browse/category/{1}</span></li>'.format(xml(x, True),
+                            xml(y), xml(_('Browse books by'))) for x, y in cats]
+
+            main = '<div class="toplevel"><h3>{0}</h3><ul>{1}</ul></div>'\
+                    .format(_('Choose a category to browse by:'), '\n\n'.join(cats))
             ans = self.browse_template().format(title='',
-                    script='toplevel();')
+                        script='toplevel();', main=main)
         else:
             raise cherrypy.HTTPError(404, 'Not found')
+
         cherrypy.response.headers['Content-Type'] = 'text/html'
-        cherrypy.response.headers['Last-Modified'] = self.last_modified(self.build_time)
+        updated = self.db.last_modified()
+        cherrypy.response.headers['Last-Modified'] = \
+            self.last_modified(max(updated, self.build_time))
         return ans
 
     # }}}
diff --git a/src/calibre/library/server/cache.py b/src/calibre/library/server/cache.py
index 87bd9ed0c5..29602a114c 100644
--- a/src/calibre/library/server/cache.py
+++ b/src/calibre/library/server/cache.py
@@ -30,7 +30,10 @@ class Cache(object):
 
     def categories_cache(self, restrict_to=frozenset([])):
         base_restriction = self.search_cache('')
-        restrict_to = frozenset(restrict_to).intersection(base_restriction)
+        if restrict_to:
+            restrict_to = frozenset(restrict_to).intersection(base_restriction)
+        else:
+            restrict_to = base_restriction
         old = self._category_cache.pop(frozenset(restrict_to), None)
         if old is None or old[0] <= self.db.last_modified():
             categories = self.db.get_categories(ids=restrict_to)