From 6c505b1242e1c3d6c9b15fe0e2d2e85aea6d5fe9 Mon Sep 17 00:00:00 2001
From: Charles Haley <>
Date: Wed, 4 Apr 2012 11:15:43 +0200
Subject: [PATCH] Make tag browser filtering work when capital letters are
 entered.

---
 src/calibre/gui2/tag_browser/model.py | 9 +++++++++
 src/calibre/gui2/tag_browser/ui.py    | 6 +++---
 src/calibre/gui2/tag_browser/view.py  | 2 +-
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/calibre/gui2/tag_browser/model.py b/src/calibre/gui2/tag_browser/model.py
index c82fd8be58..891656a9d4 100644
--- a/src/calibre/gui2/tag_browser/model.py
+++ b/src/calibre/gui2/tag_browser/model.py
@@ -840,6 +840,15 @@ class TagsModel(QAbstractItemModel): # {{{
                 self.categories[category] = tb_categories[category]['name']
         return data
 
+    def set_categories_filter(self, txt):
+        if txt:
+            self.filter_categories_by = icu_lower(txt)
+        else:
+            self.filter_categories_by = None
+
+    def get_categories_filter(self):
+        return self.filter_categories_by
+
     def refresh(self, data=None):
         '''
         Here to trap usages of refresh in the old architecture. Can eventually
diff --git a/src/calibre/gui2/tag_browser/ui.py b/src/calibre/gui2/tag_browser/ui.py
index 7919f4e4b0..feb2e0536d 100644
--- a/src/calibre/gui2/tag_browser/ui.py
+++ b/src/calibre/gui2/tag_browser/ui.py
@@ -443,12 +443,12 @@ class TagBrowserWidget(QWidget): # {{{
         txt = unicode(self.item_search.currentText()).strip()
 
         if txt.startswith('*'):
-            model.filter_categories_by = txt[1:]
+            model.set_categories_filter(txt[1:])
             self.tags_view.recount()
             self.current_find_position = None
             return
-        if model.filter_categories_by:
-            model.filter_categories_by = None
+        if model.get_categories_filter():
+            model.set_categories_filter(None)
             self.tags_view.recount()
             self.current_find_position = None
 
diff --git a/src/calibre/gui2/tag_browser/view.py b/src/calibre/gui2/tag_browser/view.py
index f2e1513f18..dbc516493b 100644
--- a/src/calibre/gui2/tag_browser/view.py
+++ b/src/calibre/gui2/tag_browser/view.py
@@ -302,7 +302,7 @@ class TagsView(QTreeView): # {{{
                 self.hidden_categories.clear()
             self.db.prefs.set('tag_browser_hidden_categories', list(self.hidden_categories))
             if reset_filter_categories:
-                self._model.filter_categories_by = None
+                self._model.set_categories_filter(None)
             self._model.rebuild_node_tree()
         except:
             return