1. added context menu on tags pane.

2. added saved search editor
3l added tags editor (a cut-down version of the original)
4. added access to editors from context menu.

src/calibre/gui2/__init__.py

@@ -97,7 +97,8 @@ def _config():
             help=_('Overwrite author and title with new metadata'))
     c.add_opt('enforce_cpu_limit', default=True,
             help=_('Limit max simultaneous jobs to number of CPUs'))
-
+    c.add_opt('tag_browser_hidden_categories', default=set(),
+            help=_('tag browser categories not to display'))
     return ConfigProxy(c)
 
 config = _config()

src/calibre/gui2/dialogs/saved_search_editor.py

@@ -0,0 +1,86 @@
+__license__   = 'GPL v3'
+
+__copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
+
+
+from PyQt4.QtCore import SIGNAL, Qt
+from PyQt4.QtGui import QDialog, QIcon, QListWidgetItem
+
+from calibre.gui2.dialogs.saved_search_editor_ui import Ui_SavedSearchEditor
+from calibre.utils.config import prefs
+from calibre.utils.search_query_parser import saved_searches
+from calibre.gui2.dialogs.confirm_delete import confirm
+from calibre.constants import islinux
+
+class SavedSearchEditor(QDialog, Ui_SavedSearchEditor):
+
+    def __init__(self, window, initial_search=None):
+        QDialog.__init__(self, window)
+        Ui_SavedSearchEditor.__init__(self)
+        self.setupUi(self)
+
+        self.connect(self.add_search_button, SIGNAL('clicked()'), self.add_search)
+        self.connect(self.search_name_box, SIGNAL('currentIndexChanged(int)'),
+                                    self.current_index_changed)
+        self.connect(self.delete_search_button, SIGNAL('clicked()'), self.del_search)
+
+        self.current_search_name = None
+        self.searches = {}
+        self.searches_to_delete = []
+        for name in saved_searches.names():
+            self.searches[name] = saved_searches.lookup(name)
+
+        self.populate_search_list()
+        if initial_search is not None and initial_search in self.searches:
+            self.select_search(initial_search)
+
+    def populate_search_list(self):
+        self.search_name_box.clear()
+        for name in sorted(self.searches.keys()):
+            self.search_name_box.addItem(name)
+
+    def add_search(self):
+        search_name = unicode(self.input_box.text()).strip()
+        if search_name == '':
+            return False
+        if search_name not in self.searches:
+            self.searches[search_name] = ''
+            self.populate_search_list()
+            self.select_search(search_name)
+        else:
+            self.select_search(search_name)
+        return True
+
+    def del_search(self):
+        if self.current_search_name is not None:
+            if not confirm('<p>'+_('The current saved search will be '
+                           '<b>permanently deleted</b>. Are you sure?')
+                        +'</p>', 'saved_search_editor_delete', self):
+                return
+            del self.searches[self.current_search_name]
+            self.searches_to_delete.append(self.current_search_name)
+            self.current_search_name = None
+            self.search_name_box.removeItem(self.search_name_box.currentIndex())
+
+    def select_search(self, name):
+        self.search_name_box.setCurrentIndex(self.search_name_box.findText(name))
+
+    def current_index_changed(self, idx):
+        if self.current_search_name:
+            self.searches[self.current_search_name] = unicode(self.search_text.toPlainText())
+        name = unicode(self.search_name_box.itemText(idx))
+        if name:
+            self.current_search_name = name
+            self.search_text.setPlainText(self.searches[name])
+        else:
+            self.current_search_name  = None
+            self.search_text.setPlainText('')
+
+    def accept(self):
+        if self.current_search_name:
+            self.searches[self.current_search_name] = unicode(self.search_text.toPlainText())
+        for name in self.searches_to_delete:
+            saved_searches.delete(name)
+        for name in self.searches:
+            saved_searches.add(name, self.searches[name])
+        QDialog.accept(self)

src/calibre/gui2/dialogs/saved_search_editor.ui

@@ -0,0 +1,181 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>SavedSearchEditor</class>
+ <widget class="QDialog" name="SavedSearchEditor">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>548</width>
+    <height>148</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Tag Editor</string>
+  </property>
+  <property name="windowIcon">
+   <iconset>
+    <normaloff>:/images/chapters.svg</normaloff>:/images/chapters.svg</iconset>
+  </property>
+  <layout class="QGridLayout">
+   <item row="2" column="0" colspan="2">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+     <property name="centerButtons">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0" colspan="2">
+    <layout class="QGridLayout" name="gridLayout">
+     <item row="0" column="0">
+      <widget class="QLabel" name="label_3">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="minimumSize">
+        <size>
+         <width>100</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="text">
+        <string>Saved Search: </string>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
+       </property>
+       <property name="buddy">
+        <cstring>search_name_box</cstring>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QComboBox" name="search_name_box">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>160</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="minimumSize">
+        <size>
+         <width>145</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="toolTip">
+        <string>Select a saved search to edit</string>
+       </property>
+       <property name="editable">
+        <bool>false</bool>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="2">
+      <widget class="QToolButton" name="delete_search_button">
+       <property name="toolTip">
+        <string>Delete this selected saved search</string>
+       </property>
+       <property name="text">
+        <string>...</string>
+       </property>
+       <property name="icon">
+        <iconset>
+         <normaloff>:/images/minus.svg</normaloff>:/images/minus.svg</iconset>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="3">
+      <spacer>
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item row="0" column="4">
+      <widget class="QLineEdit" name="input_box">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+         <horstretch>60</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="toolTip">
+        <string>Enter a new saved search name.</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="5">
+      <widget class="QToolButton" name="add_search_button">
+       <property name="toolTip">
+        <string>Add the new saved search</string>
+       </property>
+       <property name="text">
+        <string>...</string>
+       </property>
+       <property name="icon">
+        <iconset>
+         <normaloff>:/images/plus.svg</normaloff>:/images/plus.svg</iconset>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item row="1" column="0">
+    <widget class="QPlainTextEdit" name="search_text"/>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../../../../../calibre_datesearch/resources/images"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>SavedSearchEditor</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>SavedSearchEditor</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/calibre/gui2/dialogs/tag_categories.py

@@ -24,13 +24,12 @@ class Item:
 class TagCategories(QDialog, Ui_TagCategories):
     category_labels_orig =   ['', 'authors', 'series', 'publishers', 'tags']
 
-    def __init__(self, window, db, index=None):
+    def __init__(self, window, db, on_category=None):
         QDialog.__init__(self, window)
         Ui_TagCategories.__init__(self)
         self.setupUi(self)
 
         self.db = db
-        self.index = index
         self.applied_items = []
 
         cc_icon = QIcon(I('column.svg'))
@@ -102,8 +101,10 @@ class TagCategories(QDialog, Ui_TagCategories):
         self.connect(self.applied_items_box,   SIGNAL('itemActivated(QListWidgetItem*)'), self.unapply_tags)
 
         self.populate_category_list()
-        return
-        self.select_category(0)
+        if on_category is not None:
+            l = self.category_box.findText(on_category)
+            if l >= 0:
+                self.category_box.setCurrentIndex(l)
 
     def make_list_widget(self, item):
         n = item.name if item.exists else item.name + _(' (not on any book)')

src/calibre/gui2/dialogs/tag_list_editor.py

@@ -0,0 +1,55 @@
+__license__   = 'GPL v3'
+__copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
+from PyQt4.QtCore import SIGNAL
+from PyQt4.QtGui import QDialog
+
+from calibre.gui2.dialogs.tag_list_editor_ui import Ui_TagListEditor
+from calibre.gui2 import question_dialog, error_dialog
+
+class TagListEditor(QDialog, Ui_TagListEditor):
+
+    def tag_cmp(self, x, y):
+        return cmp(x.lower(), y.lower())
+
+    def __init__(self, window, db):
+        QDialog.__init__(self, window)
+        Ui_TagListEditor.__init__(self)
+        self.setupUi(self)
+
+        self.to_delete = []
+        self.db = db
+        all_tags = [tag for tag in self.db.all_tags()]
+        all_tags = list(set(all_tags))
+        all_tags.sort(cmp=self.tag_cmp)
+        for tag in all_tags:
+            self.available_tags.addItem(tag)
+
+        self.connect(self.delete_button,  SIGNAL('clicked()'), self.delete_tags)
+
+    def delete_tags(self, item=None):
+        confirms, deletes = [], []
+        items = self.available_tags.selectedItems() if item is None else [item]
+        if not items:
+            error_dialog(self, 'No tags selected', 'You must select at least one tag from the list of Available tags.').exec_()
+            return
+        for item in items:
+            if self.db.is_tag_used(unicode(item.text())):
+                confirms.append(item)
+            else:
+                deletes.append(item)
+        if confirms:
+            ct = ', '.join([unicode(item.text()) for item in confirms])
+            if question_dialog(self, _('Are your sure?'),
+                '<p>'+_('The following tags are used by one or more books. '
+                    'Are you certain you want to delete them?')+'<br>'+ct):
+                deletes += confirms
+
+        for item in deletes:
+            self.to_delete.append(item)
+            self.available_tags.takeItem(self.available_tags.row(item))
+
+    def accept(self):
+        for item in self.to_delete:
+            self.db.delete_tag(unicode(item.text()))
+        QDialog.accept(self)
+

src/calibre/gui2/dialogs/tag_list_editor.ui

@@ -0,0 +1,132 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>TagListEditor</class>
+ <widget class="QDialog" name="TagListEditor">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>397</width>
+    <height>335</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Tag Editor</string>
+  </property>
+  <property name="windowIcon">
+   <iconset>
+    <normaloff>:/images/chapters.svg</normaloff>:/images/chapters.svg</iconset>
+  </property>
+  <layout class="QGridLayout">
+   <item row="0" column="0">
+    <layout class="QVBoxLayout">
+     <item>
+      <layout class="QHBoxLayout">
+       <item>
+        <widget class="QLabel" name="label">
+         <property name="text">
+          <string>Tags in use</string>
+         </property>
+         <property name="buddy">
+          <cstring>available_tags</cstring>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer>
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>40</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout">
+       <item>
+        <widget class="QToolButton" name="delete_button">
+         <property name="toolTip">
+          <string>Delete tag from database. This will unapply the tag from all books and then remove it from the database.</string>
+         </property>
+         <property name="text">
+          <string>...</string>
+         </property>
+         <property name="icon">
+          <iconset>
+           <normaloff>:/images/trash.svg</normaloff>:/images/trash.svg</iconset>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QListWidget" name="available_tags">
+         <property name="alternatingRowColors">
+          <bool>true</bool>
+         </property>
+         <property name="selectionMode">
+          <enum>QAbstractItemView::MultiSelection</enum>
+         </property>
+         <property name="selectionBehavior">
+          <enum>QAbstractItemView::SelectRows</enum>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
+   <item row="1" column="0" colspan="2">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../../../../resources/images.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>TagListEditor</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>TagListEditor</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/calibre/gui2/tag_view.py

@@ -8,10 +8,11 @@ Browsing book collection by tags.
 '''
 
 from itertools import izip
+from functools import partial
 
 from PyQt4.Qt import Qt, QTreeView, QApplication, pyqtSignal, \
                      QFont, QSize, QIcon, QPoint, \
-                     QAbstractItemModel, QVariant, QModelIndex
+                     QAbstractItemModel, QVariant, QModelIndex, QMenu
 from calibre.gui2 import config, NONE
 from calibre.utils.config import prefs
 from calibre.library.field_metadata import TagsIcons
@@ -19,9 +20,12 @@ from calibre.utils.search_query_parser import saved_searches
 
 class TagsView(QTreeView): # {{{
 
-    need_refresh    = pyqtSignal()
-    restriction_set = pyqtSignal(object)
-    tags_marked     = pyqtSignal(object, object)
+    need_refresh        = pyqtSignal()
+    restriction_set     = pyqtSignal(object)
+    tags_marked         = pyqtSignal(object, object)
+    user_category_edit  = pyqtSignal(object)
+    tag_list_edit       = pyqtSignal()
+    saved_search_edit   = pyqtSignal(object)
 
     def __init__(self, *args):
         QTreeView.__init__(self, *args)
@@ -31,13 +35,16 @@ class TagsView(QTreeView): # {{{
         self.tag_match = None
 
     def set_database(self, db, tag_match, popularity, restriction):
-        self._model = TagsModel(db, parent=self)
+        self.hidden_categories = config['tag_browser_hidden_categories']
+        self._model = TagsModel(db, parent=self, hidden_columns=self.hidden_categories)
         self.popularity = popularity
         self.restriction = restriction
         self.tag_match = tag_match
         self.db = db
         self.setModel(self._model)
+        self.setContextMenuPolicy(Qt.CustomContextMenu)
         self.clicked.connect(self.toggle)
+        self.customContextMenuRequested.connect(self.show_context_menu)
         self.popularity.setChecked(config['sort_by_popularity'])
         self.popularity.stateChanged.connect(self.sort_changed)
         self.restriction.activated[str].connect(self.search_restriction_set)
@@ -45,10 +52,6 @@ class TagsView(QTreeView): # {{{
         db.add_listener(self.database_changed)
         self.saved_searches_changed(recount=False)
 
-    def create_tag_category(self, name, tag_list):
-        self._model.create_tag_category(name, tag_list)
-        self.recount()
-
     def database_changed(self, event, ids):
         self.need_refresh.emit()
 
@@ -72,12 +75,91 @@ class TagsView(QTreeView): # {{{
         self.recount() # Must happen after the emission of the restriction_set signal
         self.tags_marked.emit(self._model.tokens(), self.match_all)
 
+    def mouseReleaseEvent(self, event):
+        # Swallow everything except leftButton so context menus work correctly
+        if event.button() == Qt.LeftButton:
+            QTreeView.mouseReleaseEvent(self, event)
+
     def toggle(self, index):
         modifiers = int(QApplication.keyboardModifiers())
         exclusive = modifiers not in (Qt.CTRL, Qt.SHIFT)
         if self._model.toggle(index, exclusive):
             self.tags_marked.emit(self._model.tokens(), self.match_all)
 
+    def context_menu_handler(self, action=None, category=None):
+        if not action:
+            return
+        try:
+            if action == 'manage_tags':
+                self.tag_list_edit.emit();
+                return
+            if action == 'manage_categories':
+                self.user_category_edit.emit(category)
+                return
+            if action == 'manage_searches':
+                self.saved_search_edit.emit(category)
+                return
+            if action == 'hide':
+                self.hidden_categories.add(category)
+            elif action == 'show':
+                self.hidden_categories.discard(category)
+            elif action == 'defaults':
+                self.hidden_categories.clear()
+            config.set('tag_browser_hidden_categories', self.hidden_categories)
+            self.set_new_model()
+        except:
+            return
+
+    def show_context_menu(self, point):
+        index = self.indexAt(point)
+        if not index.isValid():
+            return False
+        item = index.internalPointer()
+        tag_name = ''
+        if item.type == TagTreeItem.TAG:
+            tag_name = item.tag.name
+            item = item.parent
+        if item.type == TagTreeItem.CATEGORY:
+            category = unicode(item.name.toString())
+            self.context_menu = QMenu(self)
+            self.context_menu.addAction(_('Hide column %s') % category,
+                partial(self.context_menu_handler, action='hide', category=category))
+
+            if self.hidden_categories:
+                self.context_menu.addSeparator()
+                m = self.context_menu.addMenu(_('Show column'))
+                for col in self.hidden_categories:
+                    m.addAction(col,
+                        partial(self.context_menu_handler, action='show', category=col))
+                self.context_menu.addSeparator()
+                self.context_menu.addAction(_('Restore defaults'),
+                            partial(self.context_menu_handler, action='defaults'))
+
+            self.context_menu.addSeparator()
+            self.context_menu.addAction(_('Manage Tags'),
+                        partial(self.context_menu_handler, action='manage_tags'))
+
+            if category in prefs['user_categories'].keys():
+                self.context_menu.addAction(_('Manage User Categories'),
+                        partial(self.context_menu_handler, action='manage_categories',
+                                category=category))
+            else:
+                self.context_menu.addAction(_('Manage User Categories'),
+                        partial(self.context_menu_handler, action='manage_categories',
+                                category=None))
+
+            if tag_name in saved_searches.names():
+                self.context_menu.addAction(_('Manage Saved Searches'),
+                        partial(self.context_menu_handler, action='manage_searches',
+                                category=tag_name))
+            else:
+                self.context_menu.addAction(_('Manage Saved Searches'),
+                        partial(self.context_menu_handler, action='manage_searches',
+                                category=None))
+
+            self.context_menu.popup(self.mapToGlobal(point))
+        return True;
+
     def clear(self):
         self.model().clear_state()
 
@@ -110,13 +192,12 @@ class TagsView(QTreeView): # {{{
                 self.setCurrentIndex(idx)
                 self.scrollTo(idx, QTreeView.PositionAtCenter)
 
-    '''
-    If the number of user categories changed, or if custom columns have come or gone,
-    we must rebuild the model. Reason: it is much easier to do that than to reconstruct
-    the browser tree.
-    '''
+    # If the number of user categories changed,  if custom columns have come or
+    # gone, or if columns have been hidden or restored, we must rebuild the
+    # model. Reason: it is much easier than reconstructing the browser tree.
     def set_new_model(self):
-        self._model = TagsModel(self.db, parent=self)
+        self._model = TagsModel(self.db, parent=self,
+                                hidden_categories=self.hidden_categories)
         self.setModel(self._model)
     # }}}
 
@@ -200,7 +281,7 @@ class TagTreeItem(object): # {{{
 
 class TagsModel(QAbstractItemModel): # {{{
 
-    def __init__(self, db, parent=None):
+    def __init__(self, db, parent=None, hidden_categories=None):
         QAbstractItemModel.__init__(self, parent)
 
         # must do this here because 'QPixmap: Must construct a QApplication
@@ -220,6 +301,7 @@ class TagsModel(QAbstractItemModel): # {{{
 
         self.icon_state_map = [None, QIcon(I('plus.svg')), QIcon(I('minus.svg'))]
         self.db = db
+        self.hidden_categories = hidden_categories
         self.search_restriction = ''
         self.ignore_next_search = 0
 
@@ -237,6 +319,8 @@ class TagsModel(QAbstractItemModel): # {{{
         data = self.get_node_tree(config['sort_by_popularity'])
         self.root_item = TagTreeItem()
         for i, r in enumerate(self.row_map):
+            if self.categories[i]in self.hidden_categories:
+                continue
             if self.db.field_metadata[r]['kind'] != 'user':
                 tt = _('The lookup/search name is "{0}"').format(r)
             else:
@@ -271,12 +355,16 @@ class TagsModel(QAbstractItemModel): # {{{
 
     def refresh(self):
         data = self.get_node_tree(config['sort_by_popularity']) # get category data
+        row_index = -1;
         for i, r in enumerate(self.row_map):
-            category = self.root_item.children[i]
+            if self.categories[i] in self.hidden_categories:
+                continue
+            row_index += 1
+            category = self.root_item.children[row_index]
             names = [t.tag.name for t in category.children]
             states = [t.tag.state for t in category.children]
             state_map = dict(izip(names, states))
-            category_index = self.index(i, 0, QModelIndex())
+            category_index = self.index(row_index, 0, QModelIndex())
             if len(category.children) > 0:
                 self.beginRemoveRows(category_index, 0,
                         len(category.children)-1)
@@ -401,10 +489,14 @@ class TagsModel(QAbstractItemModel): # {{{
     def tokens(self):
         ans = []
         tags_seen = set()
+        row_index = -1;
         for i, key in enumerate(self.row_map):
+            if self.categories[i] in self.hidden_categories:
+                continue
+            row_index += 1
             if key.endswith(':'): # User category, so skip it. The tag will be marked in its real category
                 continue
-            category_item = self.root_item.children[i]
+            category_item = self.root_item.children[row_index]
             for tag_item in category_item.children:
                 tag = tag_item.tag
                 if tag.state > 0:

src/calibre/gui2/ui.py

@@ -61,6 +61,8 @@ from calibre.library.database2 import LibraryDatabase2
 from calibre.library.caches import CoverCache
 from calibre.gui2.dialogs.confirm_delete import confirm
 from calibre.gui2.dialogs.tag_categories import TagCategories
+from calibre.gui2.dialogs.tag_list_editor import TagListEditor
+from calibre.gui2.dialogs.saved_search_editor import SavedSearchEditor
 
 class SaveMenu(QMenu):
 
@@ -537,19 +539,23 @@ class Main(MainWindow, Ui_MainWindow, DeviceGUI):
         self.cover_cache = CoverCache(self.library_path)
         self.cover_cache.start()
         self.library_view.model().cover_cache = self.cover_cache
-        self.connect(self.edit_categories, SIGNAL('clicked()'), self.do_edit_categories)
+        self.connect(self.edit_categories, SIGNAL('clicked()'), self.do_user_categories_edit)
         self.tags_view.set_database(db, self.tag_match, self.popularity, self.search_restriction)
         self.tags_view.tags_marked.connect(self.search.search_from_tags)
         for x in (self.saved_search.clear_to_help, self.mark_restriction_set):
             self.tags_view.restriction_set.connect(x)
         self.tags_view.tags_marked.connect(self.saved_search.clear_to_help)
+        self.tags_view.tag_list_edit.connect(self.do_tags_list_edit)
+        self.tags_view.user_category_edit.connect(self.do_user_categories_edit)
+        self.tags_view.saved_search_edit.connect(self.do_saved_search_edit)
         self.search.search.connect(self.tags_view.model().reinit)
         for x in (self.location_view.count_changed, self.tags_view.recount,
                 self.restriction_count_changed):
             self.library_view.model().count_changed_signal.connect(x)
 
         self.connect(self.search, SIGNAL('cleared()'), self.search_box_cleared)
-        self.connect(self.saved_search, SIGNAL('changed()'), self.tags_view.saved_searches_changed, Qt.QueuedConnection)
+        self.connect(self.saved_search, SIGNAL('changed()'),
+                     self.tags_view.saved_searches_changed, Qt.QueuedConnection)
         if not gprefs.get('quick_start_guide_added', False):
             from calibre.ebooks.metadata import MetaInformation
             mi = MetaInformation(_('Calibre Quick Start Guide'), ['John Schember'])
@@ -642,13 +648,28 @@ class Main(MainWindow, Ui_MainWindow, DeviceGUI):
         self._add_filesystem_book = Dispatcher(self.__add_filesystem_book)
         self.keyboard_interrupt.connect(self.quit, type=Qt.QueuedConnection)
 
-    def do_edit_categories(self):
-        d = TagCategories(self, self.library_view.model().db)
+    def do_user_categories_edit(self, on_category=None):
+        d = TagCategories(self, self.library_view.model().db, on_category)
         d.exec_()
         if d.result() == d.Accepted:
             self.tags_view.set_new_model()
             self.tags_view.recount()
 
+    def do_tags_list_edit(self):
+        d = TagListEditor(self, self.library_view.model().db)
+        d.exec_()
+        if d.result() == d.Accepted:
+            self.tags_view.set_new_model()
+            self.tags_view.recount()
+            self.library_view.model().refresh()
+
+    def do_saved_search_edit(self, search):
+        d = SavedSearchEditor(self, search)
+        d.exec_()
+        if d.result() == d.Accepted:
+            self.tags_view.saved_searches_changed(recount=True)
+            self.saved_search.clear_to_help()
+
     def resizeEvent(self, ev):
         MainWindow.resizeEvent(self, ev)
         self.search.setMaximumWidth(self.width()-150)