From 784371499513661e188b4d249565f185c498b9f9 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 22 Nov 2013 09:36:25 +0530
Subject: [PATCH] Update UI when renaming files

---
 src/calibre/gui2/tweak_book/boss.py      | 6 ++++--
 src/calibre/gui2/tweak_book/file_list.py | 5 ++++-
 src/calibre/gui2/tweak_book/ui.py        | 7 +++++++
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/calibre/gui2/tweak_book/boss.py b/src/calibre/gui2/tweak_book/boss.py
index d846bfba77..00e38df3bf 100644
--- a/src/calibre/gui2/tweak_book/boss.py
+++ b/src/calibre/gui2/tweak_book/boss.py
@@ -266,8 +266,10 @@ class Boss(QObject):
                                 det_msg=job.traceback, show=True)
         self.gui.file_list.build(current_container())
         self.gui.action_save.setEnabled(True)
-        # TODO: Update the rest of the GUI. This means renaming open editors and
-        # then calling update_editors_from_container()
+        if oldname in editors:
+            editors[newname] = editors.pop(oldname)
+            self.gui.central.rename_editor(editors[newname], newname)
+        self.apply_container_update_to_gui()
     # }}}
 
     # Global history {{{
diff --git a/src/calibre/gui2/tweak_book/file_list.py b/src/calibre/gui2/tweak_book/file_list.py
index 567f827492..b9cbfc1a63 100644
--- a/src/calibre/gui2/tweak_book/file_list.py
+++ b/src/calibre/gui2/tweak_book/file_list.py
@@ -58,7 +58,10 @@ class ItemDelegate(QStyledItemDelegate):  # {{{
             if top_level:
                 suffix = '%s(%d)' % (NBSP, index.model().rowCount(index))
             else:
-                suffix = NBSP + human_readable(current_container().filesize(unicode(index.data(NAME_ROLE).toString())))
+                try:
+                    suffix = NBSP + human_readable(current_container().filesize(unicode(index.data(NAME_ROLE).toString())))
+                except EnvironmentError:
+                    suffix = NBSP + human_readable(0)
             br = painter.boundingRect(option.rect, Qt.AlignRight|Qt.AlignVCenter, suffix)
         if top_level and index.row() > 0:
             option.rect.adjust(0, 5, 0, 0)
diff --git a/src/calibre/gui2/tweak_book/ui.py b/src/calibre/gui2/tweak_book/ui.py
index 144a8d7593..0e5a240cbe 100644
--- a/src/calibre/gui2/tweak_book/ui.py
+++ b/src/calibre/gui2/tweak_book/ui.py
@@ -75,6 +75,13 @@ class Central(QStackedWidget):
         self.editor_tabs.setTabToolTip(index, _('Full path:') + ' ' + name)
         editor.modification_state_changed.connect(self.editor_modified)
 
+    def rename_editor(self, editor, name):
+        for i in xrange(self.editor_tabs.count()):
+            if self.editor_tabs.widget(i) is editor:
+                fname = name.rpartition('/')[2]
+                self.editor_tabs.setTabText(i, fname)
+                self.editor_tabs.setTabToolTip(i, _('Full path:') + ' ' + name)
+
     def show_editor(self, editor):
         self.setCurrentIndex(1)
         self.editor_tabs.setCurrentWidget(editor)