Split gui actions into separate files

src/calibre/gui2/actions/add.py

@@ -0,0 +1,241 @@
+#!/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'
+
+import os
+from functools import partial
+
+from PyQt4.Qt import QInputDialog, QPixmap
+
+
+from calibre.gui2 import error_dialog, Dispatcher, choose_files, \
+    choose_dir, warning_dialog, info_dialog
+from calibre.gui2.widgets import IMAGE_EXTENSIONS
+from calibre.ebooks import BOOK_EXTENSIONS
+from calibre.utils.filenames import ascii_filename
+from calibre.constants import preferred_encoding, filesystem_encoding
+
+
+class AddAction(object):
+
+    def __init__(self):
+        self._add_filesystem_book = Dispatcher(self.__add_filesystem_book)
+
+    def add_recursive(self, single):
+        root = choose_dir(self, 'recursive book import root dir dialog',
+                          'Select root folder')
+        if not root:
+            return
+        from calibre.gui2.add import Adder
+        self._adder = Adder(self,
+                self.library_view.model().db,
+                Dispatcher(self._files_added), spare_server=self.spare_server)
+        self._adder.add_recursive(root, single)
+
+    def add_recursive_single(self, *args):
+        '''
+        Add books from the local filesystem to either the library or the device
+        recursively assuming one book per folder.
+        '''
+        self.add_recursive(True)
+
+    def add_recursive_multiple(self, *args):
+        '''
+        Add books from the local filesystem to either the library or the device
+        recursively assuming multiple books per folder.
+        '''
+        self.add_recursive(False)
+
+    def add_empty(self, *args):
+        '''
+        Add an empty book item to the library. This does not import any formats
+        from a book file.
+        '''
+        num, ok = QInputDialog.getInt(self, _('How many empty books?'),
+                _('How many empty books should be added?'), 1, 1, 100)
+        if ok:
+            from calibre.ebooks.metadata import MetaInformation
+            for x in xrange(num):
+                self.library_view.model().db.import_book(MetaInformation(None), [])
+            self.library_view.model().books_added(num)
+
+    def add_isbns(self, isbns):
+        from calibre.ebooks.metadata import MetaInformation
+        ids = set([])
+        for x in isbns:
+            mi = MetaInformation(None)
+            mi.isbn = x
+            ids.add(self.library_view.model().db.import_book(mi, []))
+        self.library_view.model().books_added(len(isbns))
+        self.do_download_metadata(ids)
+
+
+    def files_dropped(self, paths):
+        to_device = self.stack.currentIndex() != 0
+        self._add_books(paths, to_device)
+
+    def files_dropped_on_book(self, event, paths):
+        accept = False
+        if self.current_view() is not self.library_view:
+            return
+        db = self.library_view.model().db
+        current_idx = self.library_view.currentIndex()
+        if not current_idx.isValid(): return
+        cid = db.id(current_idx.row())
+        for path in paths:
+            ext = os.path.splitext(path)[1].lower()
+            if ext:
+                ext = ext[1:]
+            if ext in IMAGE_EXTENSIONS:
+                pmap = QPixmap()
+                pmap.load(path)
+                if not pmap.isNull():
+                    accept = True
+                    db.set_cover(cid, pmap)
+            elif ext in BOOK_EXTENSIONS:
+                db.add_format_with_hooks(cid, ext, path, index_is_id=True)
+                accept = True
+        if accept:
+            event.accept()
+            self.library_view.model().current_changed(current_idx, current_idx)
+
+    def __add_filesystem_book(self, paths, allow_device=True):
+        if isinstance(paths, basestring):
+            paths = [paths]
+        books = [path for path in map(os.path.abspath, paths) if os.access(path,
+            os.R_OK)]
+
+        if books:
+            to_device = allow_device and self.stack.currentIndex() != 0
+            self._add_books(books, to_device)
+            if to_device:
+                self.status_bar.show_message(\
+                        _('Uploading books to device.'), 2000)
+
+
+    def add_filesystem_book(self, paths, allow_device=True):
+        self._add_filesystem_book(paths, allow_device=allow_device)
+
+    def add_from_isbn(self, *args):
+        from calibre.gui2.dialogs.add_from_isbn import AddFromISBN
+        d = AddFromISBN(self)
+        if d.exec_() == d.Accepted:
+            self.add_isbns(d.isbns)
+
+    def add_books(self, *args):
+        '''
+        Add books from the local filesystem to either the library or the device.
+        '''
+        filters = [
+                        (_('Books'), BOOK_EXTENSIONS),
+                        (_('EPUB Books'), ['epub']),
+                        (_('LRF Books'), ['lrf']),
+                        (_('HTML Books'), ['htm', 'html', 'xhtm', 'xhtml']),
+                        (_('LIT Books'), ['lit']),
+                        (_('MOBI Books'), ['mobi', 'prc', 'azw']),
+                        (_('Topaz books'), ['tpz','azw1']),
+                        (_('Text books'), ['txt', 'rtf']),
+                        (_('PDF Books'), ['pdf']),
+                        (_('Comics'), ['cbz', 'cbr', 'cbc']),
+                        (_('Archives'), ['zip', 'rar']),
+                        ]
+        to_device = self.stack.currentIndex() != 0
+        if to_device:
+            filters = [(_('Supported books'), self.device_manager.device.FORMATS)]
+
+        books = choose_files(self, 'add books dialog dir', 'Select books',
+                             filters=filters)
+        if not books:
+            return
+        self._add_books(books, to_device)
+
+    def _add_books(self, paths, to_device, on_card=None):
+        if on_card is None:
+            on_card = 'carda' if self.stack.currentIndex() == 2 else 'cardb' if self.stack.currentIndex() == 3 else None
+        if not paths:
+            return
+        from calibre.gui2.add import Adder
+        self.__adder_func = partial(self._files_added, on_card=on_card)
+        self._adder = Adder(self,
+                None if to_device else self.library_view.model().db,
+                Dispatcher(self.__adder_func), spare_server=self.spare_server)
+        self._adder.add(paths)
+
+    def _files_added(self, paths=[], names=[], infos=[], on_card=None):
+        if paths:
+            self.upload_books(paths,
+                                list(map(ascii_filename, names)),
+                                infos, on_card=on_card)
+            self.status_bar.show_message(
+                    _('Uploading books to device.'), 2000)
+        if getattr(self._adder, 'number_of_books_added', 0) > 0:
+            self.library_view.model().books_added(self._adder.number_of_books_added)
+            if hasattr(self, 'db_images'):
+                self.db_images.reset()
+        if getattr(self._adder, 'merged_books', False):
+            books = u'\n'.join([x if isinstance(x, unicode) else
+                    x.decode(preferred_encoding, 'replace') for x in
+                    self._adder.merged_books])
+            info_dialog(self, _('Merged some books'),
+                    _('Some duplicates were found and merged into the '
+                        'following existing books:'), det_msg=books, show=True)
+        if getattr(self._adder, 'critical', None):
+            det_msg = []
+            for name, log in self._adder.critical.items():
+                if isinstance(name, str):
+                    name = name.decode(filesystem_encoding, 'replace')
+                det_msg.append(name+'\n'+log)
+
+            warning_dialog(self, _('Failed to read metadata'),
+                    _('Failed to read metadata from the following')+':',
+                    det_msg='\n\n'.join(det_msg), show=True)
+
+        if hasattr(self._adder, 'cleanup'):
+            self._adder.cleanup()
+        self._adder = None
+
+    def _add_from_device_adder(self, paths=[], names=[], infos=[],
+                               on_card=None, model=None):
+        self._files_added(paths, names, infos, on_card=on_card)
+        # set the in-library flags, and as a consequence send the library's
+        # metadata for this book to the device. This sets the uuid to the
+        # correct value.
+        self.set_books_in_library(booklists=[model.db], reset=True)
+        model.reset()
+
+    def add_books_from_device(self, view):
+        rows = view.selectionModel().selectedRows()
+        if not rows or len(rows) == 0:
+            d = error_dialog(self, _('Add to library'), _('No book selected'))
+            d.exec_()
+            return
+        paths = [p for p in view._model.paths(rows) if p is not None]
+        ve = self.device_manager.device.VIRTUAL_BOOK_EXTENSIONS
+        def ext(x):
+            ans = os.path.splitext(x)[1]
+            ans = ans[1:] if len(ans) > 1 else ans
+            return ans.lower()
+        remove = set([p for p in paths if ext(p) in ve])
+        if remove:
+            paths = [p for p in paths if p not in remove]
+            info_dialog(self,  _('Not Implemented'),
+                        _('The following books are virtual and cannot be added'
+                          ' to the calibre library:'), '\n'.join(remove),
+                        show=True)
+            if not paths:
+                return
+        if not paths or len(paths) == 0:
+            d = error_dialog(self, _('Add to library'), _('No book files found'))
+            d.exec_()
+            return
+        from calibre.gui2.add import Adder
+        self.__adder_func = partial(self._add_from_device_adder, on_card=None,
+                                                    model=view._model)
+        self._adder = Adder(self, self.library_view.model().db,
+                Dispatcher(self.__adder_func), spare_server=self.spare_server)
+        self._adder.add(paths)
+
+

src/calibre/gui2/actions/annotate.py

@@ -0,0 +1,235 @@
+#!/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'
+
+import os, datetime
+
+from PyQt4.Qt import pyqtSignal, QModelIndex, QThread, Qt
+
+from calibre.gui2 import error_dialog, Dispatcher, gprefs
+from calibre.ebooks.BeautifulSoup import BeautifulSoup, Tag, NavigableString
+from calibre import strftime
+
+class AnnotationsAction(object):
+
+    def fetch_annotations(self, *args):
+        # Generate a path_map from selected ids
+        def get_ids_from_selected_rows():
+            rows = self.library_view.selectionModel().selectedRows()
+            if not rows or len(rows) < 2:
+                rows = xrange(self.library_view.model().rowCount(QModelIndex()))
+            ids = map(self.library_view.model().id, rows)
+            return ids
+
+        def get_formats(id):
+            formats = db.formats(id, index_is_id=True)
+            fmts = []
+            if formats:
+                for format in formats.split(','):
+                    fmts.append(format.lower())
+            return fmts
+
+        def generate_annotation_paths(ids, db, device):
+            # Generate path templates
+            # Individual storage mount points scanned/resolved in driver.get_annotations()
+            path_map = {}
+            for id in ids:
+                mi = db.get_metadata(id, index_is_id=True)
+                a_path = device.create_upload_path(os.path.abspath('/<storage>'), mi, 'x.bookmark', create_dirs=False)
+                path_map[id] = dict(path=a_path, fmts=get_formats(id))
+            return path_map
+
+        device = self.device_manager.device
+
+        if self.current_view() is not self.library_view:
+            return error_dialog(self, _('Use library only'),
+                    _('User annotations generated from main library only'),
+                    show=True)
+        db = self.library_view.model().db
+
+        # Get the list of ids
+        ids = get_ids_from_selected_rows()
+        if not ids:
+            return error_dialog(self, _('No books selected'),
+                    _('No books selected to fetch annotations from'),
+                    show=True)
+
+        # Map ids to paths
+        path_map = generate_annotation_paths(ids, db, device)
+
+        # Dispatch to devices.kindle.driver.get_annotations()
+        self.device_manager.annotations(Dispatcher(self.annotations_fetched),
+                path_map)
+
+    def annotations_fetched(self, job):
+        from calibre.devices.usbms.device import Device
+        from calibre.ebooks.metadata import MetaInformation
+        from calibre.gui2.dialogs.progress import ProgressDialog
+        from calibre.library.cli import do_add_format
+
+        class Updater(QThread):
+
+            update_progress = pyqtSignal(int)
+            update_done     = pyqtSignal()
+            FINISHED_READING_PCT_THRESHOLD = 96
+
+            def __init__(self, parent, db, annotation_map, done_callback):
+                QThread.__init__(self, parent)
+                self.db = db
+                self.pd = ProgressDialog(_('Merging user annotations into database'), '',
+                        0, len(job.result), parent=parent)
+
+                self.am = annotation_map
+                self.done_callback = done_callback
+                self.pd.canceled.connect(self.canceled)
+                self.pd.setModal(True)
+                self.pd.show()
+                self.update_progress.connect(self.pd.set_value,
+                        type=Qt.QueuedConnection)
+                self.update_done.connect(self.pd.hide, type=Qt.QueuedConnection)
+
+            def generate_annotation_html(self, bookmark):
+                # Returns <div class="user_annotations"> ... </div>
+                last_read_location = bookmark.last_read_location
+                timestamp = datetime.datetime.utcfromtimestamp(bookmark.timestamp)
+                percent_read = bookmark.percent_read
+
+                ka_soup = BeautifulSoup()
+                dtc = 0
+                divTag = Tag(ka_soup,'div')
+                divTag['class'] = 'user_annotations'
+
+                # Add the last-read location
+                spanTag = Tag(ka_soup, 'span')
+                spanTag['style'] = 'font-weight:bold'
+                if bookmark.book_format == 'pdf':
+                    spanTag.insert(0,NavigableString(
+                        _("%s<br />Last Page Read: %d (%d%%)") % \
+                                    (strftime(u'%x', timestamp.timetuple()),
+                                    last_read_location,
+                                    percent_read)))
+                else:
+                    spanTag.insert(0,NavigableString(
+                        _("%s<br />Last Page Read: Location %d (%d%%)") % \
+                                    (strftime(u'%x', timestamp.timetuple()),
+                                    last_read_location,
+                                    percent_read)))
+
+                divTag.insert(dtc, spanTag)
+                dtc += 1
+                divTag.insert(dtc, Tag(ka_soup,'br'))
+                dtc += 1
+
+                if bookmark.user_notes:
+                    user_notes = bookmark.user_notes
+                    annotations = []
+
+                    # Add the annotations sorted by location
+                    # Italicize highlighted text
+                    for location in sorted(user_notes):
+                        if user_notes[location]['text']:
+                            annotations.append(
+                                    _('<b>Location %d &bull; %s</b><br />%s<br />') % \
+                                                (user_notes[location]['displayed_location'],
+                                                    user_notes[location]['type'],
+                                                    user_notes[location]['text'] if \
+                                                    user_notes[location]['type'] == 'Note' else \
+                                                    '<i>%s</i>' % user_notes[location]['text']))
+                        else:
+                            if bookmark.book_format == 'pdf':
+                                annotations.append(
+                                        _('<b>Page %d &bull; %s</b><br />') % \
+                                                    (user_notes[location]['displayed_location'],
+                                                     user_notes[location]['type']))
+                            else:
+                                annotations.append(
+                                        _('<b>Location %d &bull; %s</b><br />') % \
+                                                    (user_notes[location]['displayed_location'],
+                                                     user_notes[location]['type']))
+
+                    for annotation in annotations:
+                        divTag.insert(dtc, annotation)
+                        dtc += 1
+
+                ka_soup.insert(0,divTag)
+                return ka_soup
+
+            def mark_book_as_read(self,id):
+                read_tag = gprefs.get('catalog_epub_mobi_read_tag')
+                if read_tag:
+                    self.db.set_tags(id, [read_tag], append=True)
+
+            def canceled(self):
+                self.pd.hide()
+
+            def run(self):
+                ignore_tags = set(['Catalog','Clippings'])
+                for (i, id) in enumerate(self.am):
+                    bm = Device.UserAnnotation(self.am[id][0],self.am[id][1])
+                    if bm.type == 'kindle_bookmark':
+                        mi = self.db.get_metadata(id, index_is_id=True)
+                        user_notes_soup = self.generate_annotation_html(bm.value)
+                        if mi.comments:
+                            a_offset = mi.comments.find('<div class="user_annotations">')
+                            ad_offset = mi.comments.find('<hr class="annotations_divider" />')
+
+                            if a_offset >= 0:
+                                mi.comments = mi.comments[:a_offset]
+                            if ad_offset >= 0:
+                                mi.comments = mi.comments[:ad_offset]
+                            if set(mi.tags).intersection(ignore_tags):
+                                continue
+                            if mi.comments:
+                                hrTag = Tag(user_notes_soup,'hr')
+                                hrTag['class'] = 'annotations_divider'
+                                user_notes_soup.insert(0,hrTag)
+
+                            mi.comments += user_notes_soup.prettify()
+                        else:
+                            mi.comments = unicode(user_notes_soup.prettify())
+                        # Update library comments
+                        self.db.set_comment(id, mi.comments)
+
+                        # Update 'read' tag except for Catalogs/Clippings
+                        if bm.value.percent_read >= self.FINISHED_READING_PCT_THRESHOLD:
+                            if not set(mi.tags).intersection(ignore_tags):
+                                self.mark_book_as_read(id)
+
+                        # Add bookmark file to id
+                        self.db.add_format_with_hooks(id, bm.value.bookmark_extension,
+                                                      bm.value.path, index_is_id=True)
+                        self.update_progress.emit(i)
+                    elif bm.type == 'kindle_clippings':
+                        # Find 'My Clippings' author=Kindle in database, or add
+                        last_update = 'Last modified %s' % strftime(u'%x %X',bm.value['timestamp'].timetuple())
+                        mc_id = list(db.data.parse('title:"My Clippings"'))
+                        if mc_id:
+                            do_add_format(self.db, mc_id[0], 'TXT', bm.value['path'])
+                            mi = self.db.get_metadata(mc_id[0], index_is_id=True)
+                            mi.comments = last_update
+                            self.db.set_metadata(mc_id[0], mi)
+                        else:
+                            mi = MetaInformation('My Clippings', authors = ['Kindle'])
+                            mi.tags = ['Clippings']
+                            mi.comments = last_update
+                            self.db.add_books([bm.value['path']], ['txt'], [mi])
+
+                self.update_done.emit()
+                self.done_callback(self.am.keys())
+
+        if not job.result: return
+
+        if self.current_view() is not self.library_view:
+            return error_dialog(self, _('Use library only'),
+                    _('User annotations generated from main library only'),
+                    show=True)
+        db = self.library_view.model().db
+
+        self.__annotation_updater = Updater(self, db, job.result,
+                Dispatcher(self.library_view.model().refresh_ids))
+        self.__annotation_updater.start()
+
+

src/calibre/gui2/actions/catalog.py

@@ -0,0 +1,69 @@
+#!/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'
+
+import os, shutil
+
+from PyQt4.Qt import QModelIndex
+
+from calibre.gui2 import error_dialog, Dispatcher, choose_dir
+from calibre.gui2.tools import generate_catalog
+from calibre.utils.config import dynamic
+
+class GenerateCatalogAction(object):
+
+    def generate_catalog(self):
+        rows = self.library_view.selectionModel().selectedRows()
+        if not rows or len(rows) < 2:
+            rows = xrange(self.library_view.model().rowCount(QModelIndex()))
+        ids = map(self.library_view.model().id, rows)
+
+        dbspec = None
+        if not ids:
+            return error_dialog(self, _('No books selected'),
+                    _('No books selected to generate catalog for'),
+                    show=True)
+
+        # Calling gui2.tools:generate_catalog()
+        ret = generate_catalog(self, dbspec, ids, self.device_manager.device)
+        if ret is None:
+            return
+
+        func, args, desc, out, sync, title = ret
+
+        fmt = os.path.splitext(out)[1][1:].upper()
+        job = self.job_manager.run_job(
+                Dispatcher(self.catalog_generated), func, args=args,
+                    description=desc)
+        job.catalog_file_path = out
+        job.fmt = fmt
+        job.catalog_sync, job.catalog_title = sync, title
+        self.status_bar.show_message(_('Generating %s catalog...')%fmt)
+
+    def catalog_generated(self, job):
+        if job.result:
+            # Search terms nulled catalog results
+            return error_dialog(self, _('No books found'),
+                    _("No books to catalog\nCheck exclude tags"),
+                    show=True)
+        if job.failed:
+            return self.job_exception(job)
+        id = self.library_view.model().add_catalog(job.catalog_file_path, job.catalog_title)
+        self.library_view.model().reset()
+        if job.catalog_sync:
+            sync = dynamic.get('catalogs_to_be_synced', set([]))
+            sync.add(id)
+            dynamic.set('catalogs_to_be_synced', sync)
+        self.status_bar.show_message(_('Catalog generated.'), 3000)
+        self.sync_catalogs()
+        if job.fmt not in ['EPUB','MOBI']:
+            export_dir = choose_dir(self, _('Export Catalog Directory'),
+                    _('Select destination for %s.%s') % (job.catalog_title, job.fmt.lower()))
+            if export_dir:
+                destination = os.path.join(export_dir, '%s.%s' % (job.catalog_title, job.fmt.lower()))
+                shutil.copyfile(job.catalog_file_path, destination)
+
+

src/calibre/gui2/actions/convert.py

@@ -0,0 +1,148 @@
+#!/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'
+
+import os
+
+from PyQt4.Qt import QModelIndex
+
+from calibre.gui2 import error_dialog, Dispatcher
+from calibre.gui2.tools import convert_single_ebook, convert_bulk_ebook
+from calibre.utils.config import prefs
+
+class ConvertAction(object):
+
+    def auto_convert(self, book_ids, on_card, format):
+        previous = self.library_view.currentIndex()
+        rows = [x.row() for x in \
+                self.library_view.selectionModel().selectedRows()]
+        jobs, changed, bad = convert_single_ebook(self, self.library_view.model().db, book_ids, True, format)
+        if jobs == []: return
+        self.queue_convert_jobs(jobs, changed, bad, rows, previous,
+                self.book_auto_converted, extra_job_args=[on_card])
+
+    def auto_convert_mail(self, to, fmts, delete_from_library, book_ids, format):
+        previous = self.library_view.currentIndex()
+        rows = [x.row() for x in \
+                self.library_view.selectionModel().selectedRows()]
+        jobs, changed, bad = convert_single_ebook(self, self.library_view.model().db, book_ids, True, format)
+        if jobs == []: return
+        self.queue_convert_jobs(jobs, changed, bad, rows, previous,
+                self.book_auto_converted_mail,
+                extra_job_args=[delete_from_library, to, fmts])
+
+    def auto_convert_news(self, book_ids, format):
+        previous = self.library_view.currentIndex()
+        rows = [x.row() for x in \
+                self.library_view.selectionModel().selectedRows()]
+        jobs, changed, bad = convert_single_ebook(self, self.library_view.model().db, book_ids, True, format)
+        if jobs == []: return
+        self.queue_convert_jobs(jobs, changed, bad, rows, previous,
+                self.book_auto_converted_news)
+
+    def auto_convert_catalogs(self, book_ids, format):
+        previous = self.library_view.currentIndex()
+        rows = [x.row() for x in \
+                self.library_view.selectionModel().selectedRows()]
+        jobs, changed, bad = convert_single_ebook(self, self.library_view.model().db, book_ids, True, format)
+        if jobs == []: return
+        self.queue_convert_jobs(jobs, changed, bad, rows, previous,
+                self.book_auto_converted_catalogs)
+
+    def get_books_for_conversion(self):
+        rows = [r.row() for r in \
+                self.library_view.selectionModel().selectedRows()]
+        if not rows or len(rows) == 0:
+            d = error_dialog(self, _('Cannot convert'),
+                    _('No books selected'))
+            d.exec_()
+            return None
+        return [self.library_view.model().db.id(r) for r in rows]
+
+    def convert_ebook(self, checked, bulk=None):
+        book_ids = self.get_books_for_conversion()
+        if book_ids is None: return
+        previous = self.library_view.currentIndex()
+        rows = [x.row() for x in \
+                self.library_view.selectionModel().selectedRows()]
+        num = 0
+        if bulk or (bulk is None and len(book_ids) > 1):
+            self.__bulk_queue = convert_bulk_ebook(self, self.queue_convert_jobs,
+                self.library_view.model().db, book_ids,
+                out_format=prefs['output_format'], args=(rows, previous,
+                    self.book_converted))
+            if self.__bulk_queue is None:
+                return
+            num = len(self.__bulk_queue.book_ids)
+        else:
+            jobs, changed, bad = convert_single_ebook(self,
+                self.library_view.model().db, book_ids, out_format=prefs['output_format'])
+            self.queue_convert_jobs(jobs, changed, bad, rows, previous,
+                    self.book_converted)
+            num = len(jobs)
+
+        if num > 0:
+            self.status_bar.show_message(_('Starting conversion of %d book(s)') %
+                num, 2000)
+
+    def queue_convert_jobs(self, jobs, changed, bad, rows, previous,
+            converted_func, extra_job_args=[]):
+        for func, args, desc, fmt, id, temp_files in jobs:
+            if id not in bad:
+                job = self.job_manager.run_job(Dispatcher(converted_func),
+                                            func, args=args, description=desc)
+                args = [temp_files, fmt, id]+extra_job_args
+                self.conversion_jobs[job] = tuple(args)
+
+        if changed:
+            self.library_view.model().refresh_rows(rows)
+            current = self.library_view.currentIndex()
+            self.library_view.model().current_changed(current, previous)
+
+    def book_auto_converted(self, job):
+        temp_files, fmt, book_id, on_card = self.conversion_jobs[job]
+        self.book_converted(job)
+        self.sync_to_device(on_card, False, specific_format=fmt, send_ids=[book_id], do_auto_convert=False)
+
+    def book_auto_converted_mail(self, job):
+        temp_files, fmt, book_id, delete_from_library, to, fmts = self.conversion_jobs[job]
+        self.book_converted(job)
+        self.send_by_mail(to, fmts, delete_from_library, specific_format=fmt, send_ids=[book_id], do_auto_convert=False)
+
+    def book_auto_converted_news(self, job):
+        temp_files, fmt, book_id = self.conversion_jobs[job]
+        self.book_converted(job)
+        self.sync_news(send_ids=[book_id], do_auto_convert=False)
+
+    def book_auto_converted_catalogs(self, job):
+        temp_files, fmt, book_id = self.conversion_jobs[job]
+        self.book_converted(job)
+        self.sync_catalogs(send_ids=[book_id], do_auto_convert=False)
+
+    def book_converted(self, job):
+        temp_files, fmt, book_id = self.conversion_jobs.pop(job)[:3]
+        try:
+            if job.failed:
+                self.job_exception(job)
+                return
+            data = open(temp_files[-1].name, 'rb')
+            self.library_view.model().db.add_format(book_id, \
+                    fmt, data, index_is_id=True)
+            data.close()
+            self.status_bar.show_message(job.description + \
+                    (' completed'), 2000)
+        finally:
+            for f in temp_files:
+                try:
+                    if os.path.exists(f.name):
+                        os.remove(f.name)
+                except:
+                    pass
+        self.tags_view.recount()
+        if self.current_view() is self.library_view:
+            current = self.library_view.currentIndex()
+            self.library_view.model().current_changed(current, QModelIndex())
+

src/calibre/gui2/actions/delete.py

@@ -0,0 +1,165 @@
+#!/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 calibre.gui2 import error_dialog
+from calibre.gui2.dialogs.delete_matching_from_device import DeleteMatchingFromDeviceDialog
+from calibre.gui2.dialogs.confirm_delete import confirm
+
+class DeleteAction(object):
+
+    def _get_selected_formats(self, msg):
+        from calibre.gui2.dialogs.select_formats import SelectFormats
+        fmts = self.library_view.model().db.all_formats()
+        d = SelectFormats([x.lower() for x in fmts], msg, parent=self)
+        if d.exec_() != d.Accepted:
+            return None
+        return d.selected_formats
+
+    def _get_selected_ids(self, err_title=_('Cannot delete')):
+        rows = self.library_view.selectionModel().selectedRows()
+        if not rows or len(rows) == 0:
+            d = error_dialog(self, err_title, _('No book selected'))
+            d.exec_()
+            return set([])
+        return set(map(self.library_view.model().id, rows))
+
+    def delete_selected_formats(self, *args):
+        ids = self._get_selected_ids()
+        if not ids:
+            return
+        fmts = self._get_selected_formats(
+            _('Choose formats to be deleted'))
+        if not fmts:
+            return
+        for id in ids:
+            for fmt in fmts:
+                self.library_view.model().db.remove_format(id, fmt,
+                        index_is_id=True, notify=False)
+        self.library_view.model().refresh_ids(ids)
+        self.library_view.model().current_changed(self.library_view.currentIndex(),
+                self.library_view.currentIndex())
+        if ids:
+            self.tags_view.recount()
+
+    def delete_all_but_selected_formats(self, *args):
+        ids = self._get_selected_ids()
+        if not ids:
+            return
+        fmts = self._get_selected_formats(
+            '<p>'+_('Choose formats <b>not</b> to be deleted'))
+        if fmts is None:
+            return
+        for id in ids:
+            bfmts = self.library_view.model().db.formats(id, index_is_id=True)
+            if bfmts is None:
+                continue
+            bfmts = set([x.lower() for x in bfmts.split(',')])
+            rfmts = bfmts - set(fmts)
+            for fmt in rfmts:
+                self.library_view.model().db.remove_format(id, fmt,
+                        index_is_id=True, notify=False)
+        self.library_view.model().refresh_ids(ids)
+        self.library_view.model().current_changed(self.library_view.currentIndex(),
+                self.library_view.currentIndex())
+        if ids:
+            self.tags_view.recount()
+
+    def remove_matching_books_from_device(self, *args):
+        if not self.device_manager.is_device_connected:
+            d = error_dialog(self, _('Cannot delete books'),
+                             _('No device is connected'))
+            d.exec_()
+            return
+        ids = self._get_selected_ids()
+        if not ids:
+            #_get_selected_ids shows a dialog box if nothing is selected, so we
+            #do not need to show one here
+            return
+        to_delete = {}
+        some_to_delete = False
+        for model,name in ((self.memory_view.model(), _('Main memory')),
+                           (self.card_a_view.model(), _('Storage Card A')),
+                           (self.card_b_view.model(), _('Storage Card B'))):
+            to_delete[name] = (model, model.paths_for_db_ids(ids))
+            if len(to_delete[name][1]) > 0:
+                some_to_delete = True
+        if not some_to_delete:
+            d = error_dialog(self, _('No books to delete'),
+                             _('None of the selected books are on the device'))
+            d.exec_()
+            return
+        d = DeleteMatchingFromDeviceDialog(self, to_delete)
+        if d.exec_():
+            paths = {}
+            ids = {}
+            for (model, id, path) in d.result:
+                if model not in paths:
+                    paths[model] = []
+                    ids[model] = []
+                paths[model].append(path)
+                ids[model].append(id)
+            for model in paths:
+                job = self.remove_paths(paths[model])
+                self.delete_memory[job] = (paths[model], model)
+                model.mark_for_deletion(job, ids[model], rows_are_ids=True)
+            self.status_bar.show_message(_('Deleting books from device.'), 1000)
+
+    def delete_covers(self, *args):
+        ids = self._get_selected_ids()
+        if not ids:
+            return
+        for id in ids:
+            self.library_view.model().db.remove_cover(id)
+        self.library_view.model().refresh_ids(ids)
+        self.library_view.model().current_changed(self.library_view.currentIndex(),
+                self.library_view.currentIndex())
+
+    def delete_books(self, *args):
+        '''
+        Delete selected books from device or library.
+        '''
+        view = self.current_view()
+        rows = view.selectionModel().selectedRows()
+        if not rows or len(rows) == 0:
+            return
+        if self.stack.currentIndex() == 0:
+            if not confirm('<p>'+_('The selected books will be '
+                                   '<b>permanently deleted</b> and the files '
+                                   'removed from your computer. Are you sure?')
+                                +'</p>', 'library_delete_books', self):
+                return
+            ci = view.currentIndex()
+            row = None
+            if ci.isValid():
+                row = ci.row()
+            ids_deleted = view.model().delete_books(rows)
+            for v in (self.memory_view, self.card_a_view, self.card_b_view):
+                if v is None:
+                    continue
+                v.model().clear_ondevice(ids_deleted)
+            if row is not None:
+                ci = view.model().index(row, 0)
+                if ci.isValid():
+                    view.set_current_row(row)
+        else:
+            if not confirm('<p>'+_('The selected books will be '
+                                   '<b>permanently deleted</b> '
+                                   'from your device. Are you sure?')
+                                +'</p>', 'device_delete_books', self):
+                return
+            if self.stack.currentIndex() == 1:
+                view = self.memory_view
+            elif self.stack.currentIndex() == 2:
+                view = self.card_a_view
+            else:
+                view = self.card_b_view
+            paths = view.model().paths(rows)
+            job = self.remove_paths(paths)
+            self.delete_memory[job] = (paths, view.model())
+            view.model().mark_for_deletion(job, rows)
+            self.status_bar.show_message(_('Deleting books from device.'), 1000)
+

src/calibre/gui2/actions/edit_metadata.py

@@ -0,0 +1,311 @@
+#!/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'
+
+import os
+
+from PyQt4.Qt import Qt, QTimer
+
+from calibre.gui2 import error_dialog, config, warning_dialog
+from calibre.gui2.dialogs.metadata_single import MetadataSingleDialog
+from calibre.gui2.dialogs.metadata_bulk import MetadataBulkDialog
+from calibre.gui2.dialogs.confirm_delete import confirm
+from calibre.gui2.dialogs.tag_list_editor import TagListEditor
+
+class EditMetadataAction(object):
+
+    def download_metadata(self, checked, covers=True, set_metadata=True,
+            set_social_metadata=None):
+        rows = self.library_view.selectionModel().selectedRows()
+        if not rows or len(rows) == 0:
+            d = error_dialog(self, _('Cannot download metadata'),
+                             _('No books selected'))
+            d.exec_()
+            return
+        db = self.library_view.model().db
+        ids = [db.id(row.row()) for row in rows]
+        self.do_download_metadata(ids, covers=covers,
+                set_metadata=set_metadata,
+                set_social_metadata=set_social_metadata)
+
+    def do_download_metadata(self, ids, covers=True, set_metadata=True,
+            set_social_metadata=None):
+        db = self.library_view.model().db
+        if set_social_metadata is None:
+            get_social_metadata = config['get_social_metadata']
+        else:
+            get_social_metadata = set_social_metadata
+        from calibre.gui2.metadata import DownloadMetadata
+        self._download_book_metadata = DownloadMetadata(db, ids,
+                get_covers=covers, set_metadata=set_metadata,
+                get_social_metadata=get_social_metadata)
+        self._download_book_metadata.start()
+        if set_social_metadata is not None and set_social_metadata:
+            x = _('social metadata')
+        else:
+            x = _('covers') if covers and not set_metadata else _('metadata')
+        self.progress_indicator.start(
+            _('Downloading %s for %d book(s)')%(x, len(ids)))
+        self._book_metadata_download_check = QTimer(self)
+        self._book_metadata_download_check.timeout.connect(self.book_metadata_download_check,
+                type=Qt.QueuedConnection)
+        self._book_metadata_download_check.start(100)
+
+    def book_metadata_download_check(self):
+        if self._download_book_metadata.is_alive():
+            return
+        self._book_metadata_download_check.stop()
+        self.progress_indicator.stop()
+        cr = self.library_view.currentIndex().row()
+        x = self._download_book_metadata
+        self._download_book_metadata = None
+        if x.exception is None:
+            self.library_view.model().refresh_ids(
+                x.updated, cr)
+            if self.cover_flow:
+                self.cover_flow.dataChanged()
+            if x.failures:
+                details = ['%s: %s'%(title, reason) for title,
+                        reason in x.failures.values()]
+                details = '%s\n'%('\n'.join(details))
+                warning_dialog(self, _('Failed to download some metadata'),
+                    _('Failed to download metadata for the following:'),
+                    det_msg=details).exec_()
+        else:
+            err = _('Failed to download metadata:')
+            error_dialog(self, _('Error'), err, det_msg=x.tb).exec_()
+
+
+    def edit_metadata(self, checked, bulk=None):
+        '''
+        Edit metadata of selected books in library.
+        '''
+        rows = self.library_view.selectionModel().selectedRows()
+        previous = self.library_view.currentIndex()
+        if not rows or len(rows) == 0:
+            d = error_dialog(self, _('Cannot edit metadata'),
+                             _('No books selected'))
+            d.exec_()
+            return
+
+        if bulk or (bulk is None and len(rows) > 1):
+            return self.edit_bulk_metadata(checked)
+
+        def accepted(id):
+            self.library_view.model().refresh_ids([id])
+
+        for row in rows:
+            self._metadata_view_id = self.library_view.model().db.id(row.row())
+            d = MetadataSingleDialog(self, row.row(),
+                                    self.library_view.model().db,
+                                    accepted_callback=accepted,
+                                    cancel_all=rows.index(row) < len(rows)-1)
+            d.view_format.connect(self.metadata_view_format)
+            d.exec_()
+            if d.cancel_all:
+                break
+        if rows:
+            current = self.library_view.currentIndex()
+            m = self.library_view.model()
+            if self.cover_flow:
+                self.cover_flow.dataChanged()
+            m.current_changed(current, previous)
+            self.tags_view.recount()
+
+    def edit_bulk_metadata(self, checked):
+        '''
+        Edit metadata of selected books in library in bulk.
+        '''
+        rows = [r.row() for r in \
+                self.library_view.selectionModel().selectedRows()]
+        if not rows or len(rows) == 0:
+            d = error_dialog(self, _('Cannot edit metadata'),
+                    _('No books selected'))
+            d.exec_()
+            return
+        if MetadataBulkDialog(self, rows,
+                self.library_view.model().db).changed:
+            self.library_view.model().resort(reset=False)
+            self.library_view.model().research()
+            self.tags_view.recount()
+            if self.cover_flow:
+                self.cover_flow.dataChanged()
+
+    # Merge books {{{
+    def merge_books(self, safe_merge=False):
+        '''
+        Merge selected books in library.
+        '''
+        if self.stack.currentIndex() != 0:
+            return
+        rows = self.library_view.selectionModel().selectedRows()
+        if not rows or len(rows) == 0:
+            return error_dialog(self, _('Cannot merge books'),
+                                _('No books selected'), show=True)
+        if len(rows) < 2:
+            return error_dialog(self, _('Cannot merge books'),
+                        _('At least two books must be selected for merging'),
+                        show=True)
+        dest_id, src_books, src_ids = self.books_to_merge(rows)
+        if safe_merge:
+            if not confirm('<p>'+_(
+                'All book formats and metadata from the selected books '
+                'will be added to the <b>first selected book.</b><br><br> '
+                'The second and subsequently selected books will not '
+                'be deleted or changed.<br><br>'
+                'Please confirm you want to proceed.')
+            +'</p>', 'merge_books_safe', self):
+                return
+            self.add_formats(dest_id, src_books)
+            self.merge_metadata(dest_id, src_ids)
+        else:
+            if not confirm('<p>'+_(
+                'All book formats and metadata from the selected books will be merged '
+                'into the <b>first selected book</b>.<br><br>'
+                'After merger the second and '
+                'subsequently selected books will be <b>deleted</b>. <br><br>'
+                'All book formats of the first selected book will be kept '
+                'and any duplicate formats in the second and subsequently selected books '
+                'will be permanently <b>deleted</b> from your computer.<br><br>  '
+                'Are you <b>sure</b> you want to proceed?')
+            +'</p>', 'merge_books', self):
+                return
+            if len(rows)>5:
+                if not confirm('<p>'+_('You are about to merge more than 5 books.  '
+                                        'Are you <b>sure</b> you want to proceed?')
+                                    +'</p>', 'merge_too_many_books', self):
+                    return
+            self.add_formats(dest_id, src_books)
+            self.merge_metadata(dest_id, src_ids)
+            self.delete_books_after_merge(src_ids)
+            # leave the selection highlight on first selected book
+            dest_row = rows[0].row()
+            for row in rows:
+                if row.row() < rows[0].row():
+                    dest_row -= 1
+            ci = self.library_view.model().index(dest_row, 0)
+            if ci.isValid():
+                self.library_view.setCurrentIndex(ci)
+
+    def add_formats(self, dest_id, src_books, replace=False):
+        for src_book in src_books:
+            if src_book:
+                fmt = os.path.splitext(src_book)[-1].replace('.', '').upper()
+                with open(src_book, 'rb') as f:
+                    self.library_view.model().db.add_format(dest_id, fmt, f, index_is_id=True,
+                            notify=False, replace=replace)
+
+    def books_to_merge(self, rows):
+        src_books = []
+        src_ids = []
+        m = self.library_view.model()
+        for i, row in enumerate(rows):
+            id_ = m.id(row)
+            if i == 0:
+                dest_id = id_
+            else:
+                src_ids.append(id_)
+                dbfmts = m.db.formats(id_, index_is_id=True)
+                if dbfmts:
+                    for fmt in dbfmts.split(','):
+                        src_books.append(m.db.format_abspath(id_, fmt,
+                            index_is_id=True))
+        return [dest_id, src_books, src_ids]
+
+    def delete_books_after_merge(self, ids_to_delete):
+        self.library_view.model().delete_books_by_id(ids_to_delete)
+
+    def merge_metadata(self, dest_id, src_ids):
+        db = self.library_view.model().db
+        dest_mi = db.get_metadata(dest_id, index_is_id=True, get_cover=True)
+        orig_dest_comments = dest_mi.comments
+        for src_id in src_ids:
+            src_mi = db.get_metadata(src_id, index_is_id=True, get_cover=True)
+            if src_mi.comments and orig_dest_comments != src_mi.comments:
+                if not dest_mi.comments:
+                    dest_mi.comments = src_mi.comments
+                else:
+                    dest_mi.comments = unicode(dest_mi.comments) + u'\n\n' + unicode(src_mi.comments)
+            if src_mi.title and (not dest_mi.title or
+                    dest_mi.title == _('Unknown')):
+                dest_mi.title = src_mi.title
+            if src_mi.title and (not dest_mi.authors or dest_mi.authors[0] ==
+                    _('Unknown')):
+                dest_mi.authors = src_mi.authors
+                dest_mi.author_sort = src_mi.author_sort
+            if src_mi.tags:
+                if not dest_mi.tags:
+                    dest_mi.tags = src_mi.tags
+                else:
+                    dest_mi.tags.extend(src_mi.tags)
+            if src_mi.cover and not dest_mi.cover:
+                dest_mi.cover = src_mi.cover
+            if not dest_mi.publisher:
+                dest_mi.publisher = src_mi.publisher
+            if not dest_mi.rating:
+                dest_mi.rating = src_mi.rating
+            if not dest_mi.series:
+                dest_mi.series = src_mi.series
+                dest_mi.series_index = src_mi.series_index
+        db.set_metadata(dest_id, dest_mi, ignore_errors=False)
+
+        for key in db.field_metadata: #loop thru all defined fields
+          if db.field_metadata[key]['is_custom']:
+            colnum = db.field_metadata[key]['colnum']
+            # Get orig_dest_comments before it gets changed
+            if db.field_metadata[key]['datatype'] == 'comments':
+              orig_dest_value = db.get_custom(dest_id, num=colnum, index_is_id=True)
+            for src_id in src_ids:
+              dest_value = db.get_custom(dest_id, num=colnum, index_is_id=True)
+              src_value = db.get_custom(src_id, num=colnum, index_is_id=True)
+              if db.field_metadata[key]['datatype'] == 'comments':
+                if src_value and src_value != orig_dest_value:
+                  if not dest_value:
+                    db.set_custom(dest_id, src_value, num=colnum)
+                  else:
+                    dest_value = unicode(dest_value) + u'\n\n' + unicode(src_value)
+                    db.set_custom(dest_id, dest_value, num=colnum)
+              if db.field_metadata[key]['datatype'] in \
+                ('bool', 'int', 'float', 'rating', 'datetime') \
+                and not dest_value:
+                db.set_custom(dest_id, src_value, num=colnum)
+              if db.field_metadata[key]['datatype'] == 'series' \
+                and not dest_value:
+                if src_value:
+                  src_index = db.get_custom_extra(src_id, num=colnum, index_is_id=True)
+                  db.set_custom(dest_id, src_value, num=colnum, extra=src_index)
+              if db.field_metadata[key]['datatype'] == 'text' \
+                and not db.field_metadata[key]['is_multiple'] \
+                and not dest_value:
+                db.set_custom(dest_id, src_value, num=colnum)
+              if db.field_metadata[key]['datatype'] == 'text' \
+                and db.field_metadata[key]['is_multiple']:
+                if src_value:
+                  if not dest_value:
+                    dest_value = src_value
+                  else:
+                    dest_value.extend(src_value)
+                  db.set_custom(dest_id, dest_value, num=colnum)
+        # }}}
+
+    def edit_device_collections(self, view, oncard=None):
+        model = view.model()
+        result = model.get_collections_with_ids()
+        compare = (lambda x,y:cmp(x.lower(), y.lower()))
+        d = TagListEditor(self, tag_to_match=None, data=result, compare=compare)
+        d.exec_()
+        if d.result() == d.Accepted:
+            to_rename = d.to_rename # dict of new text to old ids
+            to_delete = d.to_delete # list of ids
+            for text in to_rename:
+                for old_id in to_rename[text]:
+                    model.rename_collection(old_id, new_name=unicode(text))
+            for item in to_delete:
+                model.delete_collection_using_id(item)
+            self.upload_collections(model.db, view=view, oncard=oncard)
+            view.reset()
+
+

src/calibre/gui2/actions/fetch_news.py

@@ -0,0 +1,39 @@
+#!/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 calibre.gui2 import Dispatcher
+from calibre.gui2.tools import fetch_scheduled_recipe
+from calibre.utils.config import dynamic
+
+class FetchNewsAction(object):
+
+    def download_scheduled_recipe(self, arg):
+        func, args, desc, fmt, temp_files = \
+                fetch_scheduled_recipe(arg)
+        job = self.job_manager.run_job(
+                Dispatcher(self.scheduled_recipe_fetched), func, args=args,
+                           description=desc)
+        self.conversion_jobs[job] = (temp_files, fmt, arg)
+        self.status_bar.show_message(_('Fetching news from ')+arg['title'], 2000)
+
+    def scheduled_recipe_fetched(self, job):
+        temp_files, fmt, arg = self.conversion_jobs.pop(job)
+        pt = temp_files[0]
+        if job.failed:
+            self.scheduler.recipe_download_failed(arg)
+            return self.job_exception(job)
+        id = self.library_view.model().add_news(pt.name, arg)
+        self.library_view.model().reset()
+        sync = dynamic.get('news_to_be_synced', set([]))
+        sync.add(id)
+        dynamic.set('news_to_be_synced', sync)
+        self.scheduler.recipe_downloaded(arg)
+        self.status_bar.show_message(arg['title'] + _(' fetched.'), 3000)
+        self.email_news(id)
+        self.sync_news()
+
+

src/calibre/gui2/actions/save_to_disk.py

@@ -0,0 +1,95 @@
+#!/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'
+
+import os
+
+from calibre.utils.config import prefs
+from calibre.gui2 import error_dialog, Dispatcher, \
+    choose_dir, warning_dialog, open_local_file
+
+
+class SaveToDiskAction(object):
+
+    def save_single_format_to_disk(self, checked):
+        self.save_to_disk(checked, False, prefs['output_format'])
+
+    def save_specific_format_disk(self, fmt):
+        self.save_to_disk(False, False, fmt)
+
+    def save_to_single_dir(self, checked):
+        self.save_to_disk(checked, True)
+
+    def save_single_fmt_to_single_dir(self, *args):
+        self.save_to_disk(False, single_dir=True,
+                single_format=prefs['output_format'])
+
+    def save_to_disk(self, checked, single_dir=False, single_format=None):
+        rows = self.current_view().selectionModel().selectedRows()
+        if not rows or len(rows) == 0:
+            return error_dialog(self, _('Cannot save to disk'),
+                    _('No books selected'), show=True)
+        path = choose_dir(self, 'save to disk dialog',
+                _('Choose destination directory'))
+        if not path:
+            return
+        dpath = os.path.abspath(path).replace('/', os.sep)
+        lpath = self.library_view.model().db.library_path.replace('/', os.sep)
+        if dpath.startswith(lpath):
+            return error_dialog(self, _('Not allowed'),
+                    _('You are trying to save files into the calibre '
+                      'library. This can cause corruption of your '
+                      'library. Save to disk is meant to export '
+                      'files from your calibre library elsewhere.'), show=True)
+
+        if self.current_view() is self.library_view:
+            from calibre.gui2.add import Saver
+            from calibre.library.save_to_disk import config
+            opts = config().parse()
+            if single_format is not None:
+                opts.formats = single_format
+                # Special case for Kindle annotation files
+                if single_format.lower() in ['mbp','pdr','tan']:
+                    opts.to_lowercase = False
+                    opts.save_cover = False
+                    opts.write_opf = False
+                    opts.template = opts.send_template
+            if single_dir:
+                opts.template = opts.template.split('/')[-1].strip()
+                if not opts.template:
+                    opts.template = '{title} - {authors}'
+            self._saver = Saver(self, self.library_view.model().db,
+                    Dispatcher(self._books_saved), rows, path, opts,
+                    spare_server=self.spare_server)
+
+        else:
+            paths = self.current_view().model().paths(rows)
+            self.device_manager.save_books(
+                    Dispatcher(self.books_saved), paths, path)
+
+
+    def _books_saved(self, path, failures, error):
+        self._saver = None
+        if error:
+            return error_dialog(self, _('Error while saving'),
+                    _('There was an error while saving.'),
+                    error, show=True)
+        if failures:
+            failures = [u'%s\n\t%s'%
+                    (title, '\n\t'.join(err.splitlines())) for title, err in
+                    failures]
+
+            warning_dialog(self, _('Could not save some books'),
+            _('Could not save some books') + ', ' +
+            _('Click the show details button to see which ones.'),
+            u'\n\n'.join(failures), show=True)
+        open_local_file(path)
+
+    def books_saved(self, job):
+        if job.failed:
+            return self.device_job_exception(job)
+
+

src/calibre/gui2/actions/view.py

@@ -0,0 +1,159 @@
+#!/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'
+
+import os, time
+
+from PyQt4.Qt import Qt
+
+from calibre.constants import isosx
+from calibre.gui2 import error_dialog, Dispatcher, question_dialog, config, \
+        open_local_file
+from calibre.gui2.dialogs.choose_format import ChooseFormatDialog
+from calibre.utils.config import prefs
+from calibre.ptempfile import PersistentTemporaryFile
+
+class ViewAction(object):
+
+    def view_format(self, row, format):
+        fmt_path = self.library_view.model().db.format_abspath(row, format)
+        if fmt_path:
+            self._view_file(fmt_path)
+
+    def view_format_by_id(self, id_, format):
+        fmt_path = self.library_view.model().db.format_abspath(id_, format,
+                index_is_id=True)
+        if fmt_path:
+            self._view_file(fmt_path)
+
+    def metadata_view_format(self, fmt):
+        fmt_path = self.library_view.model().db.\
+                format_abspath(self._metadata_view_id,
+                        fmt, index_is_id=True)
+        if fmt_path:
+            self._view_file(fmt_path)
+
+
+    def book_downloaded_for_viewing(self, job):
+        if job.failed:
+            self.device_job_exception(job)
+            return
+        self._view_file(job.result)
+
+    def _launch_viewer(self, name=None, viewer='ebook-viewer', internal=True):
+        self.setCursor(Qt.BusyCursor)
+        try:
+            if internal:
+                args = [viewer]
+                if isosx and 'ebook' in viewer:
+                    args.append('--raise-window')
+                if name is not None:
+                    args.append(name)
+                self.job_manager.launch_gui_app(viewer,
+                        kwargs=dict(args=args))
+            else:
+                open_local_file(name)
+                time.sleep(2) # User feedback
+        finally:
+            self.unsetCursor()
+
+    def _view_file(self, name):
+        ext = os.path.splitext(name)[1].upper().replace('.', '')
+        viewer = 'lrfviewer' if ext == 'LRF' else 'ebook-viewer'
+        internal = ext in config['internally_viewed_formats']
+        self._launch_viewer(name, viewer, internal)
+
+    def view_specific_format(self, triggered):
+        rows = self.library_view.selectionModel().selectedRows()
+        if not rows or len(rows) == 0:
+            d = error_dialog(self, _('Cannot view'), _('No book selected'))
+            d.exec_()
+            return
+
+        row = rows[0].row()
+        formats = self.library_view.model().db.formats(row).upper().split(',')
+        d = ChooseFormatDialog(self, _('Choose the format to view'), formats)
+        if d.exec_() == d.Accepted:
+            format = d.format()
+            self.view_format(row, format)
+
+    def _view_check(self, num, max_=3):
+        if num <= max_:
+            return True
+        return question_dialog(self, _('Multiple Books Selected'),
+                _('You are attempting to open %d books. Opening too many '
+                'books at once can be slow and have a negative effect on the '
+                'responsiveness of your computer. Once started the process '
+                'cannot be stopped until complete. Do you wish to continue?'
+                ) % num)
+
+    def view_folder(self, *args):
+        rows = self.current_view().selectionModel().selectedRows()
+        if not rows or len(rows) == 0:
+            d = error_dialog(self, _('Cannot open folder'),
+                    _('No book selected'))
+            d.exec_()
+            return
+        if not self._view_check(len(rows)):
+            return
+        for row in rows:
+            path = self.library_view.model().db.abspath(row.row())
+            open_local_file(path)
+
+    def view_folder_for_id(self, id_):
+        path = self.library_view.model().db.abspath(id_, index_is_id=True)
+        open_local_file(path)
+
+    def view_book(self, triggered):
+        rows = self.current_view().selectionModel().selectedRows()
+        self._view_books(rows)
+
+    def view_specific_book(self, index):
+        self._view_books([index])
+
+    def _view_books(self, rows):
+        if not rows or len(rows) == 0:
+            self._launch_viewer()
+            return
+
+        if not self._view_check(len(rows)):
+            return
+
+        if self.current_view() is self.library_view:
+            for row in rows:
+                if hasattr(row, 'row'):
+                    row = row.row()
+
+                formats = self.library_view.model().db.formats(row)
+                title   = self.library_view.model().db.title(row)
+                if not formats:
+                    error_dialog(self, _('Cannot view'),
+                        _('%s has no available formats.')%(title,), show=True)
+                    continue
+
+                formats = formats.upper().split(',')
+
+
+                in_prefs = False
+                for format in prefs['input_format_order']:
+                    if format in formats:
+                        in_prefs = True
+                        self.view_format(row, format)
+                        break
+                if not in_prefs:
+                    self.view_format(row, formats[0])
+        else:
+            paths = self.current_view().model().paths(rows)
+            for path in paths:
+                pt = PersistentTemporaryFile('_viewer_'+\
+                        os.path.splitext(path)[1])
+                self.persistent_files.append(pt)
+                pt.close()
+                self.device_manager.view_book(\
+                        Dispatcher(self.book_downloaded_for_viewing),
+                                              path, pt.name)
+
+

src/calibre/gui2/add.py

@@ -443,7 +443,7 @@ class Saver(QObject):
         from calibre.ebooks.metadata.worker import SaveWorker
         self.worker = SaveWorker(self.rq, db, self.ids, path, self.opts,
                 spare_server=self.spare_server)
-        self.connect(self.pd, SIGNAL('canceled()'), self.canceled)
+        self.pd.canceled.connect(self.canceled)
         self.timer = QTimer(self)
         self.connect(self.timer, SIGNAL('timeout()'), self.update)
         self.timer.start(200)

src/calibre/gui2/dialogs/metadata_single.py

@@ -12,7 +12,7 @@ import time
 import traceback
 
 from PyQt4.Qt import SIGNAL, QObject, Qt, QTimer, QThread, QDate, \
-    QPixmap, QListWidgetItem, QDialog
+    QPixmap, QListWidgetItem, QDialog, pyqtSignal
 
 from calibre.gui2 import error_dialog, file_icon_provider, dynamic, \
                            choose_files, choose_images, ResizableDialog, \
@@ -99,6 +99,7 @@ class Format(QListWidgetItem):
 class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
 
     COVER_FETCH_TIMEOUT = 240 # seconds
+    view_format = pyqtSignal(object)
 
     def do_reset_cover(self, *args):
         pix = QPixmap(I('default_cover.svg'))
@@ -474,7 +475,7 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
 
     def show_format(self, item, *args):
         fmt = item.ext
-        self.emit(SIGNAL('view_format(PyQt_PyObject)'), fmt)
+        self.view_format.emit(fmt)
 
     def deduce_author_sort(self):
         au = unicode(self.authors.text())

src/calibre/gui2/dialogs/progress.py

@@ -5,12 +5,14 @@ __docformat__ = 'restructuredtext en'
 
 ''''''
 
-from PyQt4.Qt import QDialog, SIGNAL, Qt
+from PyQt4.Qt import QDialog, pyqtSignal, Qt
 
 from calibre.gui2.dialogs.progress_ui import Ui_Dialog
 
 class ProgressDialog(QDialog, Ui_Dialog):
 
+    canceled = pyqtSignal()
+
     def __init__(self, title, msg='', min=0, max=99, parent=None):
         QDialog.__init__(self, parent)
         self.setupUi(self)
@@ -23,7 +25,7 @@ class ProgressDialog(QDialog, Ui_Dialog):
         self.bar.setValue(min)
         self.canceled = False
 
-        self.connect(self.button_box, SIGNAL('rejected()'), self._canceled)
+        self.button_box.rejected.connect(self._canceled)
 
     def set_msg(self, msg=''):
         self.message.setText(msg)
@@ -50,7 +52,7 @@ class ProgressDialog(QDialog, Ui_Dialog):
         self.canceled = True
         self.button_box.setDisabled(True)
         self.title.setText(_('Aborting...'))
-        self.emit(SIGNAL('canceled()'))
+        self.canceled.emit()
 
     def keyPressEvent(self, ev):
         if ev.key() == Qt.Key_Escape: