From 9b229f3951844a5de264b225d1920d14fbebf359 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 23 Nov 2015 13:13:39 +0530
Subject: [PATCH] Show search expression in tooltip for saved search entries in
 tag browser

---
 src/calibre/db/categories.py          | 7 ++++---
 src/calibre/gui2/tag_browser/model.py | 2 ++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/calibre/db/categories.py b/src/calibre/db/categories.py
index 361cdd02d0..b3c72090d7 100644
--- a/src/calibre/db/categories.py
+++ b/src/calibre/db/categories.py
@@ -22,10 +22,10 @@ class Tag(object):
 
     __slots__ = ('name', 'original_name', 'id', 'count', 'state', 'is_hierarchical',
             'is_editable', 'is_searchable', 'id_set', 'avg_rating', 'sort',
-            'use_sort_as_name', 'icon', 'category')
+            'use_sort_as_name', 'icon', 'category', 'search_expression')
 
     def __init__(self, name, id=None, count=0, state=0, avg=0, sort=None,
-                 icon=None, category=None, id_set=None,
+                 icon=None, category=None, id_set=None, search_expression=None,
                  is_editable=True, is_searchable=True, use_sort_as_name=False):
         self.name = self.original_name = name
         self.id = id
@@ -40,6 +40,7 @@ class Tag(object):
         self.use_sort_as_name = use_sort_as_name
         self.icon = icon
         self.category = category
+        self.search_expression = search_expression
 
     def __unicode__(self):
         return u'%s:%s:%s:%s:%s'%(self.name, self.count, self.id, self.state, self.category)
@@ -237,7 +238,7 @@ def get_categories(dbcache, sort='name', book_ids=None, icon_map=None,
         icon = icon_map['search']
     queries = dbcache._search_api.saved_searches.queries
     for srch in sorted(queries, key=sort_key):
-        items.append(Tag(srch, sort=srch, icon=icon,
+        items.append(Tag(srch, sort=srch, icon=icon, search_expression=queries[srch],
                          category='search', is_editable=False))
     if len(items):
         categories['search'] = items
diff --git a/src/calibre/gui2/tag_browser/model.py b/src/calibre/gui2/tag_browser/model.py
index 9151b8edc4..bc4cdaa2f5 100644
--- a/src/calibre/gui2/tag_browser/model.py
+++ b/src/calibre/gui2/tag_browser/model.py
@@ -169,6 +169,8 @@ class TagTreeItem(object):  # {{{
                 tt.append(_('Average rating for books in this category: %.1f') % ar)
             elif self.type == self.TAG and ar is not None:
                 tt.append(_('Books in this category are unrated'))
+            if self.type == self.TAG and self.tag.category == 'search':
+                tt.append(_('Search expression:') + ' ' + self.tag.search_expression)
             return '\n'.join(tt)
         if role == DRAG_IMAGE_ROLE:
             return self.icon_state_map[0]