First implementation of plugboards

src/calibre/customize/builtins.py

@@ -796,6 +796,17 @@ class Sending(PreferencesPlugin):
     description = _('Control how calibre transfers files to your '
             'ebook reader')
 
+class Plugboard(PreferencesPlugin):
+    name = 'Plugboard'
+    icon = I('plugboard.png')
+    gui_name = _('Metadata plugboard')
+    category = 'Import/Export'
+    gui_category = _('Import/Export')
+    category_order = 3
+    name_order = 4
+    config_widget = 'calibre.gui2.preferences.plugboard'
+    description = _('Change metadata fields before saving/sending')
+
 class Email(PreferencesPlugin):
     name = 'Email'
     icon = I('mail.png')
@@ -856,8 +867,8 @@ class Misc(PreferencesPlugin):
     description = _('Miscellaneous advanced configuration')
 
 plugins += [LookAndFeel, Behavior, Columns, Toolbar, InputOptions,
-        CommonOptions, OutputOptions, Adding, Saving, Sending, Email, Server,
-        Plugins, Tweaks, Misc]
+        CommonOptions, OutputOptions, Adding, Saving, Sending, Plugboard,
+        Email, Server, Plugins, Tweaks, Misc]
 
 #}}}
 

src/calibre/ebooks/metadata/book/base.py

@@ -182,7 +182,7 @@ class Metadata(object):
         return metadata describing a standard or custom field.
         '''
         if key not in self.custom_field_keys():
-            return self.get_standard_metadata(self, key, make_copy=False)
+            return self.get_standard_metadata(key, make_copy=False)
         return self.get_user_metadata(key, make_copy=False)
 
     def all_non_none_fields(self):
@@ -294,6 +294,33 @@ class Metadata(object):
             _data = object.__getattribute__(self, '_data')
             _data['user_metadata'][field] = metadata
 
+    def copy_specific_attributes(self, other, attrs):
+        '''
+        Takes a dict {src:dest, src:dest} and copys other[src] to self[dest].
+        This is on a best-efforts basis. Some assignments can make no sense.
+        '''
+        if not attrs:
+            return
+        for src in attrs:
+            try:
+                print src
+                sfm = other.metadata_for_field(src)
+                dfm = self.metadata_for_field(attrs[src])
+                if dfm['is_multiple']:
+                    if sfm['is_multiple']:
+                        self.set(attrs[src], other.get(src))
+                    else:
+                        self.set(attrs[src],
+                            [f.strip() for f in other.get(src).split(',')
+                                            if f.strip()])
+                elif sfm['is_multiple']:
+                    self.set(attrs[src], ','.join(other.get(src)))
+                else:
+                    self.set(attrs[src], other.get(src))
+            except:
+                traceback.print_exc()
+                pass
+
     # Old Metadata API {{{
     def print_all_attributes(self):
         for x in STANDARD_METADATA_FIELDS:

src/calibre/gui2/device.py

@@ -317,19 +317,40 @@ class DeviceManager(Thread): # {{{
                                args=[booklist, on_card],
                         description=_('Send collections to device'))
 
-    def _upload_books(self, files, names, on_card=None, metadata=None):
+    def _upload_books(self, files, names, on_card=None, metadata=None, plugboards=None):
         '''Upload books to device: '''
         if metadata and files and len(metadata) == len(files):
             for f, mi in zip(files, metadata):
                 if isinstance(f, unicode):
                     ext = f.rpartition('.')[-1].lower()
+                    dev_name = self.connected_device.name
+                    cpb = None
+                    if ext in plugboards:
+                        cpb = plugboards[ext]
+                    elif ' any' in plugboards:
+                        cpb = plugboards[' any']
+                    if cpb is not None:
+                        if dev_name in cpb:
+                            cpb = cpb[dev_name]
+                        elif ' any' in plugboards[ext]:
+                            cpb = cpb[' any']
+                        else:
+                            cpb = None
+
+                    if DEBUG:
+                        prints('Using plugboard', cpb)
                     if ext:
                         try:
                             if DEBUG:
                                 prints('Setting metadata in:', mi.title, 'at:',
                                         f, file=sys.__stdout__)
                             with open(f, 'r+b') as stream:
-                                set_metadata(stream, mi, stream_type=ext)
+                                if cpb:
+                                    newmi = mi.deepcopy()
+                                    newmi.copy_specific_attributes(mi, cpb)
+                                else:
+                                    newmi = mi
+                                set_metadata(stream, newmi, stream_type=ext)
                         except:
                             if DEBUG:
                                 prints(traceback.format_exc(), file=sys.__stdout__)
@@ -338,12 +359,12 @@ class DeviceManager(Thread): # {{{
                                         metadata=metadata, end_session=False)
 
     def upload_books(self, done, files, names, on_card=None, titles=None,
-                     metadata=None):
+                     metadata=None, plugboards=None):
         desc = _('Upload %d books to device')%len(names)
         if titles:
             desc += u':' + u', '.join(titles)
         return self.create_job(self._upload_books, done, args=[files, names],
-                kwargs={'on_card':on_card,'metadata':metadata}, description=desc)
+                kwargs={'on_card':on_card,'metadata':metadata,'plugboards':plugboards}, description=desc)
 
     def add_books_to_metadata(self, locations, metadata, booklists):
         self.device.add_books_to_metadata(locations, metadata, booklists)
@@ -1257,10 +1278,11 @@ class DeviceMixin(object): # {{{
         :param files: List of either paths to files or file like objects
         '''
         titles = [i.title for i in metadata]
+        plugboards = self.library_view.model().db.prefs.get('plugboards', None)
         job = self.device_manager.upload_books(
                 Dispatcher(self.books_uploaded),
                 files, names, on_card=on_card,
-                metadata=metadata, titles=titles
+                metadata=metadata, titles=titles, plugboards=plugboards
               )
         self.upload_memory[job] = (metadata, on_card, memory, files)
 

src/calibre/gui2/preferences/plugboard.py

@@ -0,0 +1,257 @@
+#!/usr/bin/env python
+# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
+
+__license__   = 'GPL v3'
+__copyright__ = '2010, Kovid Goyal <kovid@kovidgoyal.net>'
+__docformat__ = 'restructuredtext en'
+
+from PyQt4 import QtGui
+
+from calibre.gui2 import error_dialog
+from calibre.gui2.preferences import ConfigWidgetBase, test_widget, \
+        AbortCommit
+from calibre.gui2.preferences.plugboard_ui import Ui_Form
+from calibre.customize.ui import metadata_writers, device_plugins
+
+
+class ConfigWidget(ConfigWidgetBase, Ui_Form):
+
+    def genesis(self, gui):
+        self.gui = gui
+        self.db = gui.library_view.model().db
+        self.current_plugboards = self.db.prefs.get('plugboards', {'epub': {' any': {'title':'authors', 'authors':'tags'}}})
+        self.current_device = None
+        self.current_format = None
+#        self.proxy = ConfigProxy(config())
+#
+#        r = self.register
+#
+#        for x in ('asciiize', 'update_metadata', 'save_cover', 'write_opf',
+#                'replace_whitespace', 'to_lowercase', 'formats', 'timefmt'):
+#            r(x, self.proxy)
+#
+#        self.save_template.changed_signal.connect(self.changed_signal.emit)
+
+    def clear_fields(self, edit_boxes=False, new_boxes=False):
+        self.ok_button.setEnabled(False)
+        for w in self.source_widgets:
+            w.clear()
+        for w in self.dest_widgets:
+            w.clear()
+        if edit_boxes:
+            self.edit_device.setCurrentIndex(0)
+            self.edit_format.setCurrentIndex(0)
+        if new_boxes:
+            self.new_device.setCurrentIndex(0)
+            self.new_format.setCurrentIndex(0)
+
+    def set_fields(self):
+        self.ok_button.setEnabled(True)
+        for w in self.source_widgets:
+            w.addItems(self.fields)
+        for w in self.dest_widgets:
+            w.addItems(self.fields)
+
+    def set_field(self, i, src, dst):
+        print i, src, dst
+        idx = self.fields.index(src)
+        self.source_widgets[i].setCurrentIndex(idx)
+        idx = self.fields.index(dst)
+        self.dest_widgets[i].setCurrentIndex(idx)
+
+    def edit_device_changed(self, txt):
+        if txt == '':
+            self.current_device = None
+            return
+        print 'edit device changed'
+        self.clear_fields(new_boxes=True)
+        self.current_device = unicode(txt)
+        fpb = self.current_plugboards.get(self.current_format, None)
+        if fpb is None:
+            print 'None format!'
+            return
+        dpb = fpb.get(self.current_device, None)
+        if dpb is None:
+            print 'none device!'
+            return
+        self.set_fields()
+        for i,src in enumerate(dpb):
+            self.set_field(i, src, dpb[src])
+        self.ok_button.setEnabled(True)
+
+    def edit_format_changed(self, txt):
+        if txt == '':
+            self.edit_device.setCurrentIndex(0)
+            self.current_format = None
+            self.current_device = None
+            return
+        print 'edit_format_changed'
+        self.clear_fields(new_boxes=True)
+        txt = unicode(txt)
+        fpb = self.current_plugboards.get(txt, None)
+        if fpb is None:
+            print 'None editable format!'
+            return
+        self.current_format = txt
+        devices = ['']
+        for d in fpb:
+            devices.append(d)
+        self.edit_device.clear()
+        self.edit_device.addItems(devices)
+        self.edit_device.setCurrentIndex(0)
+
+    def new_device_changed(self, txt):
+        if txt == '':
+            self.current_device = None
+            return
+        print 'new_device_changed'
+        self.clear_fields(edit_boxes=True)
+        self.current_device = unicode(txt)
+        error = False
+        if self.current_format == ' any':
+            for f in self.current_plugboards:
+                if self.current_device == ' any' and len(self.current_plugboards[f]):
+                    error = True
+                    break
+                if self.current_device in self.current_plugboards[f]:
+                    error = True
+                    break
+                if ' any' in self.current_plugboards[f]:
+                    error = True
+                    break
+        else:
+            fpb = self.current_plugboards.get(self.current_format, None)
+            if fpb is not None:
+                if ' any' in fpb:
+                    error = True
+                else:
+                    dpb = fpb.get(self.current_device, None)
+                    if dpb is not None:
+                        error = True
+
+        if error:
+            error_dialog(self, '',
+                     _('That format and device already has a plugboard'),
+                     show=True)
+            self.new_device.setCurrentIndex(0)
+            return
+        self.set_fields()
+
+    def new_format_changed(self, txt):
+        if txt == '':
+            self.current_format = None
+            self.current_device = None
+            return
+        print 'new_format_changed'
+        self.clear_fields(edit_boxes=True)
+        self.current_format = unicode(txt)
+        self.new_device.setCurrentIndex(0)
+
+    def ok_clicked(self):
+        pb = {}
+        print self.current_format, self.current_device
+        for i in range(0, len(self.source_widgets)):
+            s = self.source_widgets[i].currentIndex()
+            if s != 0:
+                d = self.dest_widgets[i].currentIndex()
+                if d != 0:
+                    pb[self.fields[s]] = self.fields[d]
+        if len(pb) == 0:
+            if self.current_format in self.current_plugboards:
+                fpb = self.current_plugboards[self.current_format]
+                if self.current_device in fpb:
+                    del fpb[self.current_device]
+                if len(fpb) == 0:
+                    del self.current_plugboards[self.current_format]
+        else:
+            if self.current_format not in self.current_plugboards:
+                self.current_plugboards[self.current_format] = {}
+            fpb = self.current_plugboards[self.current_format]
+            fpb[self.current_device] = pb
+        self.changed_signal.emit()
+        self.refill_all_boxes()
+
+    def refill_all_boxes(self):
+        self.current_device = None
+        self.current_format = None
+        self.clear_fields(new_boxes=True)
+        self.edit_format.clear()
+        self.edit_format.addItem('')
+        for format in self.current_plugboards:
+            self.edit_format.addItem(format)
+        self.edit_format.setCurrentIndex(0)
+        self.edit_device.clear()
+        self.ok_button.setEnabled(False)
+
+    def initialize(self):
+        def field_cmp(x, y):
+            if x.startswith('#'):
+                if y.startswith('#'):
+                    return cmp(x.lower(), y.lower())
+                else:
+                    return 1
+            elif y.startswith('#'):
+                return -1
+            else:
+                return cmp(x.lower(), y.lower())
+
+        ConfigWidgetBase.initialize(self)
+
+        self.devices = ['', ' any', 'save to disk']
+        for device in device_plugins():
+            self.devices.append(device.name)
+        self.devices.sort(cmp=lambda x, y: cmp(x.lower(), y.lower()))
+        self.new_device.addItems(self.devices)
+
+        self.formats = ['', ' any']
+        for w in metadata_writers():
+            for f in w.file_types:
+                self.formats.append(f)
+        self.formats.sort()
+        self.new_format.addItems(self.formats)
+
+        self.fields = ['']
+        for f in self.db.all_field_keys():
+            if self.db.field_metadata[f].get('rec_index', None) is not None and\
+                    self.db.field_metadata[f]['datatype'] is not None and \
+                    self.db.field_metadata[f]['search_terms']:
+                self.fields.append(f)
+        self.fields.sort(cmp=field_cmp)
+
+        self.source_widgets = []
+        self.dest_widgets = []
+        for i in range(0, 10):
+            w = QtGui.QComboBox(self)
+            self.source_widgets.append(w)
+            self.fields_layout.addWidget(w, 5+i, 0, 1, 1)
+            w = QtGui.QComboBox(self)
+            self.dest_widgets.append(w)
+            self.fields_layout.addWidget(w, 5+i, 1, 1, 1)
+
+        self.edit_device.currentIndexChanged[str].connect(self.edit_device_changed)
+        self.edit_format.currentIndexChanged[str].connect(self.edit_format_changed)
+        self.new_device.currentIndexChanged[str].connect(self.new_device_changed)
+        self.new_format.currentIndexChanged[str].connect(self.new_format_changed)
+        self.ok_button.clicked.connect(self.ok_clicked)
+
+        self.refill_all_boxes()
+
+    def restore_defaults(self):
+        ConfigWidgetBase.restore_defaults(self)
+        self.current_plugboards = {}
+        self.refill_all_boxes()
+        self.changed_signal.emit()
+
+    def commit(self):
+        self.db.prefs.set('plugboards', self.current_plugboards)
+        return ConfigWidgetBase.commit(self)
+
+    def refresh_gui(self, gui):
+        pass
+
+
+if __name__ == '__main__':
+    from PyQt4.Qt import QApplication
+    app = QApplication([])
+    test_widget('Import/Export', 'plugboards')
+

src/calibre/gui2/preferences/plugboard.ui

@@ -0,0 +1,138 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Form</class>
+ <widget class="QWidget" name="Form">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>707</width>
+    <height>340</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0" colspan="2">
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>Here you can control what metadata calibre uses when saving or sending books:</string>
+     </property>
+     <property name="wordWrap">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <layout class="QGridLayout" name="gridLayout_2">
+     <item row="1" column="0">
+      <widget class="QLabel" name="label_5">
+       <property name="text">
+        <string>Add new plugboard</string>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="0">
+      <widget class="QLabel" name="label_4">
+       <property name="text">
+        <string>Edit existing plugboard</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QComboBox" name="new_format"/>
+     </item>
+     <item row="1" column="2">
+      <widget class="QComboBox" name="new_device"/>
+     </item>
+     <item row="2" column="1">
+      <widget class="QComboBox" name="edit_format"/>
+     </item>
+     <item row="2" column="2">
+      <widget class="QComboBox" name="edit_device"/>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLabel" name="label_6">
+       <property name="text">
+        <string>Format (choose first)</string>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignCenter</set>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="2">
+      <widget class="QLabel" name="label_7">
+       <property name="text">
+        <string>Device (choose second)</string>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignCenter</set>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="0">
+      <spacer name="verticalSpacer">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </item>
+   <item row="1" column="1">
+    <layout class="QGridLayout" name="fields_layout">
+     <item row="0" column="0">
+      <widget class="QLabel" name="label_2">
+       <property name="text">
+        <string>Source field</string>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignCenter</set>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLabel" name="label_3">
+       <property name="text">
+        <string>Destination field</string>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignCenter</set>
+       </property>
+      </widget>
+     </item>
+     <item row="20" column="0">
+      <spacer name="verticalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item row="19" column="0" colspan="2">
+      <widget class="QPushButton" name="ok_button">
+       <property name="text">
+        <string>Done</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

src/calibre/library/save_to_disk.py

@@ -232,6 +232,21 @@ def save_book_to_disk(id, db, root, opts, length):
 
     written = False
     for fmt in formats:
+        dev_name = 'save to disk'
+        plugboards = db.prefs.get('plugboards', None)
+        cpb = None
+        if fmt in plugboards:
+            cpb = plugboards[fmt]
+        elif ' any' in plugboards:
+            cpb = plugboards[' any']
+        if cpb is not None:
+            if dev_name in cpb:
+                cpb = cpb[dev_name]
+            elif ' any' in plugboards[fmt]:
+                cpb = cpb[' any']
+            else:
+                cpb = None
+
         data = db.format(id, fmt, index_is_id=True)
         if data is None:
             continue
@@ -242,7 +257,12 @@ def save_book_to_disk(id, db, root, opts, length):
             stream.write(data)
             stream.seek(0)
             try:
-                set_metadata(stream, mi, fmt)
+                if cpb:
+                    newmi = mi.deepcopy()
+                    newmi.copy_specific_attributes(mi, cpb)
+                else:
+                    newmi = mi
+                set_metadata(stream, newmi, fmt)
             except:
                 traceback.print_exc()
             stream.seek(0)