From 00fd77ffe895fd39bf7d1f2eb2f151d7f16122e9 Mon Sep 17 00:00:00 2001
From: Charles Haley <>
Date: Mon, 11 Oct 2010 12:08:54 +0100
Subject: [PATCH] More fix for #7131 - disable drag & drop

---
 src/calibre/gui2/device.py        | 9 ++++++---
 src/calibre/gui2/library/views.py | 9 ++++++++-
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/calibre/gui2/device.py b/src/calibre/gui2/device.py
index bc9f5cf671..49bc5c0016 100644
--- a/src/calibre/gui2/device.py
+++ b/src/calibre/gui2/device.py
@@ -793,11 +793,14 @@ class DeviceMixin(object): # {{{
         self.set_books_in_library(job.result, reset=True)
         mainlist, cardalist, cardblist = job.result
         self.memory_view.set_database(mainlist)
-        self.memory_view.set_editable(self.device_manager.device.CAN_SET_METADATA)
+        self.memory_view.set_editable(self.device_manager.device.CAN_SET_METADATA,
+                                      self.device_manager.device.SUPPORTS_BACKLOADING)
         self.card_a_view.set_database(cardalist)
-        self.card_a_view.set_editable(self.device_manager.device.CAN_SET_METADATA)
+        self.card_a_view.set_editable(self.device_manager.device.CAN_SET_METADATA,
+                                      self.device_manager.device.SUPPORTS_BACKLOADING)
         self.card_b_view.set_database(cardblist)
-        self.card_b_view.set_editable(self.device_manager.device.CAN_SET_METADATA)
+        self.card_b_view.set_editable(self.device_manager.device.CAN_SET_METADATA,
+                                      self.device_manager.device.SUPPORTS_BACKLOADING)
         self.sync_news()
         self.sync_catalogs()
         self.refresh_ondevice()
diff --git a/src/calibre/gui2/library/views.py b/src/calibre/gui2/library/views.py
index 57ea04fb75..8f86bf43b8 100644
--- a/src/calibre/gui2/library/views.py
+++ b/src/calibre/gui2/library/views.py
@@ -30,6 +30,7 @@ class BooksView(QTableView): # {{{
     def __init__(self, parent, modelcls=BooksModel):
         QTableView.__init__(self, parent)
 
+        self.drag_allowed = True
         self.setDragEnabled(True)
         self.setDragDropOverwriteMode(False)
         self.setDragDropMode(self.DragDrop)
@@ -505,6 +506,8 @@ class BooksView(QTableView): # {{{
         return QTableView.mousePressEvent(self, event)
 
     def mouseMoveEvent(self, event):
+        if not self.drag_allowed:
+            return
         if self.drag_start_pos is None:
             return QTableView.mouseMoveEvent(self, event)
 
@@ -613,7 +616,7 @@ class BooksView(QTableView): # {{{
     def close(self):
         self._model.close()
 
-    def set_editable(self, editable):
+    def set_editable(self, editable, supports_backloading):
         self._model.set_editable(editable)
 
     def connect_to_search_box(self, sb, search_done):
@@ -700,5 +703,9 @@ class DeviceBooksView(BooksView): # {{{
         error_dialog(self, _('Not allowed'),
         _('Dropping onto a device is not supported. First add the book to the calibre library.')).exec_()
 
+    def set_editable(self, editable, supports_backloading):
+        self._model.set_editable(editable)
+        self.drag_allowed = supports_backloading
+
 # }}}