From 1595268b09de5c697c9fd817a1bf4b264c3cb2ae Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 27 May 2013 16:51:55 +0530
Subject: [PATCH] When reviewing downloaded metadata, add a button to view the
 book being reviewed. Fixes #1184546 (View the eBook when reviewing download
 metadata)

---
 src/calibre/gui2/actions/edit_metadata.py | 3 ++-
 src/calibre/gui2/metadata/diff.py         | 9 +++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/calibre/gui2/actions/edit_metadata.py b/src/calibre/gui2/actions/edit_metadata.py
index 0fd5d31944..e5a9bfbc7d 100644
--- a/src/calibre/gui2/actions/edit_metadata.py
+++ b/src/calibre/gui2/actions/edit_metadata.py
@@ -229,7 +229,8 @@ class EditMetadataAction(InterfaceAction):
                 revert_tooltip=_('Discard the downloaded value for: %s'),
                 intro_msg=_('The downloaded metadata is on the left and the original metadata'
                             ' is on the right. If a downloaded value is blank or unknown,'
-                            ' the original value is used.')
+                            ' the original value is used.'),
+                action_button=(_('&View Book'), I('view.png'), self.gui.iactions['View'].view_historical),
             )
             if d.exec_() == d.Accepted:
                 nid_map = {}
diff --git a/src/calibre/gui2/metadata/diff.py b/src/calibre/gui2/metadata/diff.py
index 477743aa7a..32364da687 100644
--- a/src/calibre/gui2/metadata/diff.py
+++ b/src/calibre/gui2/metadata/diff.py
@@ -440,6 +440,7 @@ class CompareMany(QDialog):
                  reject_all_tooltip=None,
                  revert_tooltip=None,
                  intro_msg=None,
+                 action_button=None,
                  **kwargs):
         QDialog.__init__(self, parent)
         self.l = l = QVBoxLayout()
@@ -480,6 +481,11 @@ class CompareMany(QDialog):
             b.setIcon(QIcon(I('minus.png')))
             if reject_button_tooltip:
                 b.setToolTip(reject_button_tooltip)
+        if action_button is not None:
+            self.acb = b = bb.addButton(action_button[0], bb.ActionRole)
+            b.setIcon(QIcon(action_button[1]))
+            self.action_button_action = action_button[2]
+            b.clicked.connect(self.action_button_clicked)
         self.nb = b = bb.addButton(_('&Next') if self.total > 1 else _('&OK'), bb.ActionRole)
         b.setIcon(QIcon(I('forward.png' if self.total > 1 else 'ok.png')))
         b.clicked.connect(partial(self.next_item, True))
@@ -498,6 +504,9 @@ class CompareMany(QDialog):
             self.restoreGeometry(geom)
         b.setFocus(Qt.OtherFocusReason)
 
+    def action_button_clicked(self):
+        self.action_button_action(self.ids[0])
+
     def accept(self):
         gprefs.set('diff_dialog_geom', bytearray(self.saveGeometry()))
         super(CompareMany, self).accept()