Bulk metadata edit: option to not refresh after edit

Bulk metadata edit: Add a checkbox to prevent the refreshing of the book
list after the bulk edit. This means that the book list will not be
resorted and any existing search/virtual library will not be refreshed.
Useful if you have a large library as the refresh can be slow.

src/calibre/gui2/__init__.py

@@ -110,6 +110,7 @@ defs['bd_overlay_cover_size'] = False
 defs['tags_browser_category_icons'] = {}
 defs['cover_browser_reflections'] = True
 defs['extra_row_spacing'] = 0
+defs['refresh_book_list_on_bulk_edit'] = True
 del defs
 # }}}
 

src/calibre/gui2/actions/edit_metadata.py

@@ -10,7 +10,7 @@ from functools import partial
 
 from PyQt4.Qt import QMenu, QModelIndex, QTimer, QIcon
 
-from calibre.gui2 import error_dialog, Dispatcher, question_dialog
+from calibre.gui2 import error_dialog, Dispatcher, question_dialog, gprefs
 from calibre.gui2.dialogs.metadata_bulk import MetadataBulkDialog
 from calibre.gui2.dialogs.confirm_delete import confirm
 from calibre.gui2.dialogs.device_category_editor import DeviceCategoryEditor
@@ -366,8 +366,11 @@ class EditMetadataAction(InterfaceAction):
             self.gui.tags_view.blockSignals(False)
         if changed:
             m = self.gui.library_view.model()
-            m.refresh(reset=False)
-            m.research()
+            if gprefs['refresh_book_list_on_bulk_edit']:
+                m.refresh(reset=False)
+                m.research()
+            else:
+                m.refresh_ids(book_ids)
             self.gui.tags_view.recount()
             if self.gui.cover_flow:
                 self.gui.cover_flow.dataChanged()

src/calibre/gui2/dialogs/metadata_bulk.py

@@ -317,6 +317,8 @@ class MetadataBulkDialog(ResizableDialog, Ui_MetadataBulkDialog):
         Ui_MetadataBulkDialog.__init__(self)
         self.model = model
         self.db = model.db
+        self.refresh_book_list.setChecked(gprefs['refresh_book_list_on_bulk_edit'])
+        self.refresh_book_list.toggled.connect(self.save_refresh_booklist)
         self.ids = [self.db.id(r) for r in rows]
         self.box_title.setText('<p>' +
                 _('Editing meta information for <b>%d books</b>') %
@@ -380,6 +382,9 @@ class MetadataBulkDialog(ResizableDialog, Ui_MetadataBulkDialog):
         self.authors.setFocus(Qt.OtherFocusReason)
         self.exec_()
 
+    def save_refresh_booklist(self, *args):
+        gprefs['refresh_book_list_on_bulk_edit'] = bool(self.refresh_book_list.isChecked())
+
     def save_state(self, *args):
         gprefs['bulk_metadata_window_geometry'] = \
             bytearray(self.saveGeometry())

src/calibre/gui2/dialogs/metadata_bulk.ui

@@ -45,7 +45,7 @@
         <x>0</x>
         <y>0</y>
         <width>950</width>
-        <height>576</height>
+        <height>577</height>
        </rect>
       </property>
       <layout class="QVBoxLayout" name="verticalLayout_2">
@@ -1113,7 +1113,7 @@ not multiple and the destination field is multiple</string>
                 <x>0</x>
                 <y>0</y>
                 <width>934</width>
-                <height>213</height>
+                <height>256</height>
                </rect>
               </property>
               <layout class="QGridLayout" name="testgrid">
@@ -1170,14 +1170,30 @@ not multiple and the destination field is multiple</string>
     </widget>
    </item>
    <item row="2" column="0">
-    <widget class="QDialogButtonBox" name="button_box">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
-     </property>
-     <property name="standardButtons">
-      <set>QDialogButtonBox::Apply|QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
-     </property>
-    </widget>
+    <layout class="QHBoxLayout" name="horizontalLayout_8">
+     <item>
+      <widget class="QCheckBox" name="refresh_book_list">
+       <property name="toolTip">
+        <string>If enabled, the book list will be re-sorted and any existing
+search or Virtual LIbrary will be refreshed after the edit
+is completed. This can be slow on large libraries.</string>
+       </property>
+       <property name="text">
+        <string>&amp;Refresh book list after edit</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="button_box">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Apply|QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+       </property>
+      </widget>
+     </item>
+    </layout>
    </item>
   </layout>
  </widget>
@@ -1241,7 +1257,6 @@ not multiple and the destination field is multiple</string>
   <tabstop>scrollArea</tabstop>
   <tabstop>central_widget</tabstop>
   <tabstop>query_field</tabstop>
-  <tabstop>button_box</tabstop>
   <tabstop>save_button</tabstop>
   <tabstop>remove_button</tabstop>
   <tabstop>search_field</tabstop>