Class: Alexandria::UI::UIManager

Inherits:
BuilderBase show all
Includes:
Logging, GetText
Defined in:
lib/alexandria/ui/ui_manager.rb

Constant Summary collapse

ICON_TITLE_MAXLEN =

characters

20
ICON_HEIGHT =

pixels

90
REDUCE_TITLE_REGEX = 
Regexp.new("^(.{#{ICON_TITLE_MAXLEN}}).*$")
ICONS_SORTS = 
[
  Columns::TITLE, Columns::AUTHORS, Columns::ISBN,
  Columns::PUBLISHER, Columns::EDITION, Columns::RATING,
  Columns::REDD, Columns::OWN, Columns::WANT
].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Logging

included, #log

Constructor Details

#initialize(parent) ⇒ UIManager

Returns a new instance of UIManager.



23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
 
# File 'lib/alexandria/ui/ui_manager.rb', line 23

def initialize(parent)
  super("main_app__builder.glade", widget_names)
  @parent = parent

  @library_separator_iter = nil
  @libraries = nil
  @move_mid = nil
  @clicking_on_sidepane = true

  get_preferences
  load_libraries
  setup_window_icons
  setup_callbacks
  create_uimanager
  add_menus_and_popups_from_xml
  setup_menus
  setup_toolbar
  setup_move_actions
  setup_active_model
  setup_dependents
  setup_accel_group
  setup_popups
  setup_window_events
  setup_books_iconview_sorting
  on_books_selection_changed
  restore_preferences
  log.debug { "UI Manager initialized: #{@iconview.model.inspect}" }
  @clicking_on_sidepane = true

  @library_listview.signal_connect("cursor-changed") do
    @clicking_on_sidepane = true
  end
end

Instance Attribute Details

#actiongroup ⇒ Object

Returns the value of attribute actiongroup.



15
16
17
 
# File 'lib/alexandria/ui/ui_manager.rb', line 15

def actiongroup
  @actiongroup
end

#appbar ⇒ Object

Returns the value of attribute appbar.



15
16
17
 
# File 'lib/alexandria/ui/ui_manager.rb', line 15

def appbar
  @appbar
end

#filtered_model ⇒ Object

Returns the value of attribute filtered_model.



15
16
17
 
# File 'lib/alexandria/ui/ui_manager.rb', line 15

def filtered_model
  @filtered_model
end

#iconview ⇒ Object

Returns the value of attribute iconview.



15
16
17
 
# File 'lib/alexandria/ui/ui_manager.rb', line 15

def iconview
  @iconview
end

#iconview_model ⇒ Object

Returns the value of attribute iconview_model.



15
16
17
 
# File 'lib/alexandria/ui/ui_manager.rb', line 15

def iconview_model
  @iconview_model
end

#listview ⇒ Object

Returns the value of attribute listview.



15
16
17
 
# File 'lib/alexandria/ui/ui_manager.rb', line 15

def listview
  @listview
end

#listview_model ⇒ Object

Returns the value of attribute listview_model.



15
16
17
 
# File 'lib/alexandria/ui/ui_manager.rb', line 15

def listview_model
  @listview_model
end

#main_app ⇒ Object

Returns the value of attribute main_app.



15
16
17
 
# File 'lib/alexandria/ui/ui_manager.rb', line 15

def main_app
  @main_app
end

#model ⇒ Object (readonly)

Returns the value of attribute model.



17
18
19
 
# File 'lib/alexandria/ui/ui_manager.rb', line 17

def model
  @model
end

#prefs ⇒ Object

Returns the value of attribute prefs.



15
16
17
 
# File 'lib/alexandria/ui/ui_manager.rb', line 15

def prefs
  @prefs
end

Instance Method Details

#add_main_toolbar_items ⇒ Object 



110
111
112
113
114
115
116
117
118
119
120
121
122
 
# File 'lib/alexandria/ui/ui_manager.rb', line 110

def add_main_toolbar_items
  mid = @uimanager.new_merge_id
  @uimanager.add_ui(mid, "ui/", "MainToolbar", "MainToolbar",
                    :toolbar, false)
  @uimanager.add_ui(mid, "ui/MainToolbar/", "New", "New",
                    :toolitem, false)
  @uimanager.add_ui(mid, "ui/MainToolbar/", "AddBook", "AddBook",
                    :toolitem, false)
  # @uimanager.add_ui(mid, "ui/MainToolbar/", "sep", "sep",
  #                  :separator, false)
  # @uimanager.add_ui(mid, "ui/MainToolbar/", "Refresh", "Refresh",
  #                  :toolitem, false)
end

#add_menus_and_popups_from_xml ⇒ Object 



203
204
205
206
207
208
209
 
# File 'lib/alexandria/ui/ui_manager.rb', line 203

def add_menus_and_popups_from_xml
  log.debug { "add_menus_and_popups_from_xml" }
  ["menus.xml", "popups.xml"].each do |ui_file|
    @uimanager.add_ui(File.join(Alexandria::Config::DATA_DIR,
                                "ui", ui_file))
  end
end

#append_book(book, _tail = nil) ⇒ Object 



744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
 
# File 'lib/alexandria/ui/ui_manager.rb', line 744

def append_book(book, _tail = nil)
  log.debug { @model.inspect }
  iter = @model.append
  log.debug { "iter == #{iter}" }
  if iter
    fill_iter_with_book(iter, book)
  else
    log.debug { "@model.append" }
    iter = @model.append
    fill_iter_with_book(iter, book)
    log.debug { "no iter for book #{book}" }
  end
  library = selected_library
  if library.deleted_books.include?(book)
    log.debug { "Stop! Don't delete this book! We re-added it!" }
    library.undelete(book)
    UndoManager.instance.push { undoable_delete(library, [book]) }
  end
  iter
end

#append_library(library, autoselect = false) ⇒ Object 



765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
 
# File 'lib/alexandria/ui/ui_manager.rb', line 765

def append_library(library, autoselect = false)
  log.debug { "append_library #{library.name}" }
  model = @library_listview.model
  is_smart = library.is_a?(SmartLibrary)
  if is_smart
    @library_separator_iter = append_library_separator if @library_separator_iter.nil?
    iter = model.append
  else
    iter = if @library_separator_iter.nil?
             model.append
           else
             model.insert_before(@library_separator_iter)
           end
  end

  iter[0] = is_smart ? Icons::SMART_LIBRARY_SMALL : Icons::LIBRARY_SMALL
  iter[1] = library.name
  iter[2] = true      # editable?
  iter[3] = false     # separator?
  if autoselect
    @library_listview.set_cursor(iter.path,
                                 @library_listview.get_column(0),
                                 true)
    @actiongroup["Sidepane"].active = true
  end
  iter
end

#append_library_separator ⇒ Object 



793
794
795
796
797
798
799
800
801
 
# File 'lib/alexandria/ui/ui_manager.rb', line 793

def append_library_separator
  log.debug { "append_library_separator" }
  iter = @library_listview.model.append
  iter[0] = nil
  iter[1] = nil
  iter[2] = false     # editable?
  iter[3] = true      # separator?
  iter
end

#book_from_iter(library, iter) ⇒ Object 



872
873
874
875
 
# File 'lib/alexandria/ui/ui_manager.rb', line 872

def book_from_iter(library, iter)
  log.debug { "Book from iter: #{library} #{iter}" }
  library.find { |x| x.ident == iter[Columns::IDENT] }
end

#cache_scaled_icon(icon, width, height) ⇒ Object 



695
696
697
698
699
 
# File 'lib/alexandria/ui/ui_manager.rb', line 695

def cache_scaled_icon(icon, width, height)
  log.debug { "cache_scaled_icon #{icon}, #{width}, #{height}" }
  @cache ||= {}
  @cache[[icon, width, height]] ||= icon.scale(width, height)
end

#collate_selected_books(page) ⇒ Object 



892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
 
# File 'lib/alexandria/ui/ui_manager.rb', line 892

def collate_selected_books(page)
  result = []
  library = selected_library

  if page.zero?
    result = @iconview.selected_items.map do |path|
      path = view_path_to_model_path(@iconview, path)
      book_from_iter(library, @model.get_iter(path))
    end
  else
    selection = @listview.selection
    rows, _model = selection.selected_rows
    result = rows.map do |path|
      path = view_path_to_model_path(@listview, path)
      book_from_iter(library, @model.get_iter(path))
    end
  end

  result
end

#create_uimanager ⇒ Object 



67
68
69
70
71
 
# File 'lib/alexandria/ui/ui_manager.rb', line 67

def create_uimanager
  log.debug { "Adding actiongroup to uimanager" }
  @uimanager = Gtk::UIManager.new
  @uimanager.insert_action_group(@actiongroup, 0)
end

#current_view ⇒ Object 



1058
1059
1060
1061
1062
1063
1064
1065
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1058

def current_view
  case @notebook.page
  when 0
    @iconview
  when 1
    @listview
  end
end

#detach_old_libraries ⇒ Object 



583
584
585
586
587
588
589
590
591
 
# File 'lib/alexandria/ui/ui_manager.rb', line 583

def detach_old_libraries
  log.debug { "Un-observing old libraries" }
  @libraries.all_regular_libraries.each do |library|
    if library.is_a?(Library)
      library.delete_observer(self)
      @completion_models.remove_source(library)
    end
  end
end

#determine_delete_option ⇒ Object 



525
526
527
 
# File 'lib/alexandria/ui/ui_manager.rb', line 525

def determine_delete_option
  @libraries.all_regular_libraries.length > 1 || selected_library.is_a?(SmartLibrary)
end

#determine_library_popup(widget, event) ⇒ Object 



367
368
369
370
371
372
373
374
375
 
# File 'lib/alexandria/ui/ui_manager.rb', line 367

def determine_library_popup(widget, event)
  if widget.get_path_at_pos(event.x, event.y).nil?
    @nolibrary_popup
  elsif selected_library.is_a?(SmartLibrary)
    @smart_library_popup
  else
    @library_popup
  end
end

#event_is_right_click(event) ⇒ Object 



377
378
379
 
# File 'lib/alexandria/ui/ui_manager.rb', line 377

def event_is_right_click(event)
  (event.event_type == :button_press) && (event.button == 3)
end

#fill_iter_with_book(iter, book) ⇒ Object 



705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
 
# File 'lib/alexandria/ui/ui_manager.rb', line 705

def fill_iter_with_book(iter, book)
  log.debug { "fill iter #{iter} with book #{book}" }
  iter[Columns::IDENT] = book.ident.to_s
  iter[Columns::TITLE] = book.title
  title = book.title.sub(REDUCE_TITLE_REGEX, '\1...')
  iter[Columns::TITLE_REDUCED] = title
  iter[Columns::AUTHORS] = book.authors.join(", ")
  iter[Columns::ISBN] = book.isbn.to_s
  iter[Columns::PUBLISHER] = book.publisher
  iter[Columns::PUBLISH_DATE] = book.publishing_year.to_s
  iter[Columns::EDITION] = book.edition
  iter[Columns::NOTES] = (book.notes || "")
  iter[Columns::LOANED_TO] = (book.loaned_to || "")
  rating = (book.rating || Book::DEFAULT_RATING)
  # ascending order is the default
  iter[Columns::RATING] = Book::MAX_RATING_STARS - rating
  iter[Columns::OWN] = book.own?
  iter[Columns::REDD] = book.redd?
  iter[Columns::WANT] = book.want?
  iter[Columns::TAGS] = if book.tags
                          book.tags.join(",")
                        else
                          ""
                        end

  icon = Icons.cover(selected_library, book)
  log.debug { "Setting icon #{icon} for book #{book.title}" }
  iter[Columns::COVER_LIST] = cache_scaled_icon(icon, 20, 25)

  if icon.height > ICON_HEIGHT
    new_width = icon.width / (icon.height / ICON_HEIGHT.to_f)
    new_height = [ICON_HEIGHT, icon.height].min
    icon = cache_scaled_icon(icon, new_width, new_height)
  end
  icon = Icons.tag_icon(icon, Icons::FAVORITE_TAG) if rating == Book::MAX_RATING_STARS
  iter[Columns::COVER_ICON] = icon
  log.debug { "Full iter: " + (0..15).map { |num| iter[num].inspect }.join(", ") }
end

#get_appbar_status(library, books) ⇒ Object 



429
430
431
432
433
434
435
436
437
438
439
 
# File 'lib/alexandria/ui/ui_manager.rb', line 429

def get_appbar_status(library, books)
  case books.length
  when 0
    get_library_selection_text library
  when 1
    _("'%s' selected") % books.first.title
  else
    n_("%d book selected", "%d books selected",
       books.length) % books.length
  end
end

#get_library_selection_text(library) ⇒ Object 



404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
 
# File 'lib/alexandria/ui/ui_manager.rb', line 404

def get_library_selection_text(library)
  case library.length
  when 0
    _("Library '%s' selected") % library.name

  else
    n_unrated = library.n_unrated
    if n_unrated == library.length
      format(n_("Library '%s' selected, %d unrated book",
                "Library '%s' selected, %d unrated books",
                library.length), library.name, library.length)
    elsif n_unrated.zero?
      format(n_("Library '%s' selected, %d book",
                "Library '%s' selected, %d books",
                library.length), library.name, library.length)
    else
      format(n_("Library '%s' selected, %d book, " \
                "%d unrated",
                "Library '%s' selected, %d books, " \
                "%d unrated",
                library.length), library.name, library.length, n_unrated)
    end
  end
end

#get_preferences ⇒ Object 



89
90
91
 
# File 'lib/alexandria/ui/ui_manager.rb', line 89

def get_preferences
  @prefs = Preferences.instance
end

#get_previous_selected_library(library) ⇒ Object 



1095
1096
1097
1098
1099
1100
1101
1102
1103
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1095

def get_previous_selected_library(library)
  log.debug { "get_previous_selected_library: #{library}" }
  @previous_selected_library = selected_library
  if @previous_selected_library == library
    @previous_selected_library = nil
  else
    select_library(library)
  end
end

#get_view_actiongroup ⇒ Object 



948
949
950
951
952
953
954
955
 
# File 'lib/alexandria/ui/ui_manager.rb', line 948

def get_view_actiongroup
  case @prefs.view_as
  when 0
    @actiongroup["AsIcons"]
  when 1
    @actiongroup["AsList"]
  end
end

#handle_ruined_books ⇒ Object 



610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
 
# File 'lib/alexandria/ui/ui_manager.rb', line 610

def handle_ruined_books
  new_message = _(
    "The data files for the following books are malformed or empty. Do you wish to " \
    "attempt to download new information for them from the online book providers?\n")

  @libraries.ruined_books.each do |bi|
    new_message += "\n#{bi[1] || bi[1].inspect}"
  end
  recovery_dialog = Gtk::MessageDialog.new(@main_app, Gtk::Dialog::MODAL,
                                           Gtk::MessageDialog::WARNING,
                                           Gtk::MessageDialog::BUTTONS_OK_CANCEL,
                                           new_message).show
  recovery_dialog.signal_connect("response") do |_dialog, response_type|
    recovery_dialog.destroy
    if response_type == Gtk::ResponseType::OK
      # progress indicator...
      @progressbar.fraction = 0
      @appbar.children.first.visible = true # show the progress bar

      total_book_count = @libraries.ruined_books.size
      fraction_per_book = 1.0 / total_book_count
      prog_percentage = 0

      @libraries.ruined_books.reverse!
      GLib::Idle.add do
        ruined_book = @libraries.ruined_books.pop
        if ruined_book
          book, isbn, library = ruined_book
          begin
            book_rslt = Alexandria::BookProviders.isbn_search(isbn.to_s)
            book = book_rslt[0]
            cover_uri = book_rslt[1]

            # TODO: if the book was saved okay, make sure the old
            # empty yaml file doesn't stick around esp if doing
            # isbn-10 --> isbn-13 conversion...
            if isbn.size == 10
              filename = library.yaml(isbn)
              log.debug { "removing old file #{filename}" }
              begin
                File.delete(filename)
              rescue StandardError => ex
                log.error { "Could not delete empty file #{filename}" }
              end
            end

            log.debug do
              "Trying to add #{book.title}, #{cover_uri} " \
                "in library ''#{library.name}'"
            end
            library.save_cover(book, cover_uri) unless cover_uri.nil?
            library << book
            library.save(book)
            set_status_label(format(_("Added '%s' to library '%s'"),
                                    book.title, library.name))
          rescue StandardError => ex
            log.error { "Couldn't add book #{isbn}: #{ex}" }
            log.error { ex.backtrace.join("\n") }
          end

          prog_percentage += fraction_per_book
          @progressbar.fraction = prog_percentage

          true
        else
          ## Totally copied and pasted from refresh_books...
          ## call this the second strike... (CathalMagus)

          # @iconview.unfreeze
          # @filtered_model.refilter
          # @listview.columns_autosize

          @progressbar.fraction = 1
          ## Hide the progress bar.
          @appbar.children.first.visible = false
          ## Refresh the status bar.
          set_status_label("")
          # on_books_selection_changed
          false
        end
      end
    end
  end
end

#handle_update_caller_library(ary) ⇒ Object 



553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
 
# File 'lib/alexandria/ui/ui_manager.rb', line 553

def handle_update_caller_library(ary)
  library, kind, book = ary
  if library == selected_library
    @iconview.freeze # This makes @iconview.model == nil
    @listview.freeze # NEW
    case kind
    when Library::BOOK_ADDED
      append_book(book)
    when Library::BOOK_UPDATED
      iter = iter_from_ident(book.saved_ident)
      fill_iter_with_book(iter, book) if iter
    when Library::BOOK_REMOVED
      @model.remove(iter_from_book(book))
    end
    @iconview.unfreeze
    @listview.unfreeze # NEW
    select_a_book(book) if [Library::BOOK_ADDED, Library::BOOK_UPDATED].include? kind
  elsif selected_library.is_a?(SmartLibrary)
    refresh_books
  end
end

#iter_from_book(book) ⇒ Object 



888
889
890
 
# File 'lib/alexandria/ui/ui_manager.rb', line 888

def iter_from_book(book)
  iter_from_ident(book.ident)
end

#iter_from_ident(ident) ⇒ Object 



877
878
879
880
881
882
883
884
885
886
 
# File 'lib/alexandria/ui/ui_manager.rb', line 877

def iter_from_ident(ident)
  iter = @model.iter_first
  ok = true if iter
  while ok
    return iter if iter[Columns::IDENT] == ident

    ok = iter.next!
  end
  nil
end

#library_sort_order ⇒ Object

Gets the sort order of the current library, for use by export



1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1068

def library_sort_order
  # added by Cathal Mc Ginley, 23 Oct 2007
  log.debug do
    "library_sort_order #{@notebook.page}: " \
      "#{@iconview.model.inspect} #{@listview.model.inspect}"
  end
  result, sort_column, sort_order = current_view.model.sort_column_id
  if result
    column_ids_to_attributes = { 2  => :title,
                                 4  => :authors,
                                 5  => :isbn,
                                 6  => :publisher,
                                 7  => :publishing_year,
                                 8  => :edition, # binding
                                 12 => :redd,
                                 13 => :own,
                                 14 => :want,
                                 9  => :rating }

    sort_attribute = column_ids_to_attributes.fetch sort_column
    ascending = (sort_order == :ascending)
    LibrarySortOrder.new(sort_attribute, ascending)
  else
    LibrarySortOrder::Unsorted.new
  end
end

#load_libraries ⇒ Object 



593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
 
# File 'lib/alexandria/ui/ui_manager.rb', line 593

def load_libraries
  log.info { _("Loading libraries...") }
  @completion_models = CompletionModels.instance
  if @libraries
    detach_old_libraries
    @libraries.reload
  else
    @libraries = LibraryCollection.instance
    @libraries.reload
    handle_ruined_books unless @libraries.ruined_books.empty?
  end
  @libraries.all_regular_libraries.each do |library|
    library.add_observer(self)
    @completion_models.add_source(library)
  end
end

#move_selected_books_to_library(library) ⇒ Object 



1020
1021
1022
1023
1024
1025
1026
1027
1028
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1020

def move_selected_books_to_library(library)
  books = selected_books.select do |book|
    !library.include?(book) ||
      ConflictWhileCopyingDialog.new(@main_app,
                                     library,
                                     book).replace?
  end
  undoable_move(selected_library, library, books)
end

#on_books_button_press_event(widget, event) ⇒ Object 



381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
 
# File 'lib/alexandria/ui/ui_manager.rb', line 381

def on_books_button_press_event(widget, event)
  log.debug { "books_button_press_event" }
  event_is_right_click event or return

  widget.grab_focus

  if (path = widget.get_path_at_pos(event.x.to_i, event.y.to_i))
    obj, path =
      widget.is_a?(Gtk::TreeView) ? [widget.selection, path.first] : [widget, path]

    unless obj.path_is_selected?(path)
      log.debug { "Select #{path}" }
      widget.unselect_all
      obj.select_path(path)
    end
  else
    widget.unselect_all
  end

  menu = selected_books.empty? ? @nobook_popup : @book_popup
  menu.popup_at_pointer(event)
end

#on_books_selection_changed ⇒ Object 



445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
 
# File 'lib/alexandria/ui/ui_manager.rb', line 445

def on_books_selection_changed
  library = selected_library
  books = selected_books
  set_status_label(get_appbar_status(library, books))

  # Focus is the wrong idiom here.
  unless @clicking_on_sidepane || (@main_app.focus == @library_listview)
    # unless @main_app.focus == @library_listview

    log.debug { "Currently focused widget: #{@main_app.focus.inspect}" }
    log.debug { "#{@library_listview} : #{@library_popup} : #{@listview}" }
    log.debug do
      "@library_listview: #{@library_listview.has_focus?} " \
        "or @library_popup:#{@library_popup.has_focus?}"
    end
    log.debug { "@library_listview does *NOT* have focus" }
    log.debug { "Books are empty: #{books.empty?}" }
    @actiongroup["Properties"].sensitive = \
      @actiongroup["OnlineInformation"].sensitive = \
        books.length == 1
    @actiongroup["SelectAll"].sensitive = \
      books.length < library.length

    @actiongroup["Delete"].sensitive = \
      @actiongroup["DeselectAll"].sensitive = \
        @actiongroup["Move"].sensitive =
          @actiongroup["SetRating"].sensitive = !books.empty?

    log.debug do
      "on_books_selection_changed Delete: #{@actiongroup['Delete'].sensitive?}"
    end

    if library.is_a?(SmartLibrary)
      @actiongroup["Delete"].sensitive =
        @actiongroup["Move"].sensitive = false
    end

    # Sensitize providers URL
    if books.length == 1
      b = books.first
      # FIXME: Clean up endless negation in this logic
      no_urls = true
      BookProviders.list.each do |provider|
        has_no_url = true
        begin
          has_no_url = (b.isbn.nil? || b.isbn.strip.empty? || provider.url(b).nil?)
        rescue StandardError => ex
          log.warn { "Error determining URL from #{provider.name}; #{ex.message}" }
        end
        @actiongroup[provider.action_name].sensitive = !has_no_url
        no_urls = false unless has_no_url
      end
      @actiongroup["OnlineInformation"].sensitive = false if no_urls
    end
  end
  @clicking_on_sidepane = false
end

#on_close_sidepane ⇒ Object 



529
530
531
532
 
# File 'lib/alexandria/ui/ui_manager.rb', line 529

def on_close_sidepane
  log.debug { "on_close_sidepane" }
  @actiongroup["Sidepane"].active = false
end

#on_focus(widget, _event_focus) ⇒ Object 



509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
 
# File 'lib/alexandria/ui/ui_manager.rb', line 509

def on_focus(widget, _event_focus)
  if @clicking_on_sidepane || (widget == @library_listview)
    log.debug { "on_focus: @library_listview" }
    GLib::Idle.add do
      %w(OnlineInformation SelectAll DeselectAll).each do |action|
        @actiongroup[action].sensitive = false
      end
      @actiongroup["Properties"].sensitive = selected_library.is_a?(SmartLibrary)
      @actiongroup["Delete"].sensitive = determine_delete_option
      false
    end
  else
    on_books_selection_changed
  end
end

#on_library_button_press_event(widget, event) ⇒ Object 



299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
 
# File 'lib/alexandria/ui/ui_manager.rb', line 299

def on_library_button_press_event(widget, event)
  log.debug { "library_button_press_event" }

  # right click
  if event_is_right_click event
    log.debug { "library right click!" }
    library_already_selected = true
    if (path = widget.get_path_at_pos(event.x, event.y))
      @clicking_on_sidepane = true
      obj, path =
        widget.is_a?(Gtk::TreeView) ? [widget.selection, path.first] : [widget, path]
      widget.has_focus = true

      unless obj.path_is_selected?(path)

        log.debug { "Select #{path}" }
        library_already_selected = false
        widget.unselect_all
        obj.select_path(path)
        sensitize_library selected_library

        if widget.is_a?(Gtk::TreeView)
          GLib::Idle.add do
            # cur_path, focus_col = widget.cursor

            widget.focus = true

            widget.set_cursor(path, nil, false)
            widget.grab_focus
            widget.has_focus = true
            false
          end
          # widget.has_focus = true
        end

        # library_already_selected = true
      end
    else
      widget.unselect_all
    end

    menu = determine_library_popup widget, event

    # Fixes part of bug #25021.
    #
    # If the library was not selected when it was right-clicked
    # we should select the library first (we call on_focus
    # manually, since the above call to obj.select_path(path) doesn't
    # seem to suffice).
    #
    # Then we wait a while and only *then* pop up the menu.
    sensitize_library selected_library if library_already_selected

    GLib::Idle.add do
      menu.popup_at_pointer(event)
      false
    end

    # not a right click
  elsif (path = widget.get_path_at_pos(event.x, event.y))
    @clicking_on_sidepane = true
    obj, path =
      widget.is_a?(Gtk::TreeView) ? [widget.selection, path.first] : [widget, path]
    obj.select_path(path)
    sensitize_library selected_library
  end
end

#on_switch_page(_notebook, _page, page_num) ⇒ Object 



503
504
505
506
507
 
# File 'lib/alexandria/ui/ui_manager.rb', line 503

def on_switch_page(_notebook, _page, page_num)
  log.debug { "on_switch_page" }
  @actiongroup["ArrangeIcons"].sensitive = page_num.zero?
  on_books_selection_changed
end

#open_web_browser(url) ⇒ Object 



575
576
577
578
579
580
581
 
# File 'lib/alexandria/ui/ui_manager.rb', line 575

def open_web_browser(url)
  if url.nil?
    log.warn("Attempt to open browser with nil url")
    return
  end
  Gtk.show_uri url
end

#refresh_books ⇒ Object 



803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
 
# File 'lib/alexandria/ui/ui_manager.rb', line 803

def refresh_books
  log.debug { "refresh_books" }
  @library_listview.set_sensitive(false)
  library = selected_library
  @iconview.freeze
  @listview.freeze
  @model.clear
  @progressbar.fraction = 0
  @appbar.children.first.visible = true # show the progress bar
  set_status_label(_("Loading '%s'...") % library.name)
  total = library.length
  log.debug { "library #{library.name} length #{library.length}" }
  n = 0

  GLib::Idle.add do
    block_return = true
    book = library[n]
    if book
      begin
        append_book(book)
      rescue StandardError => ex
        trace = ex.backtrace.join("\n > ")
        log.error { "append_books failed #{ex.message} #{trace}" }
      end
      fraction = n * 1.0 / total
      log.debug { "#index #{n} fraction #{fraction}" }
      @progressbar.fraction = fraction
      n += 1
    else
      @iconview.unfreeze
      @listview.unfreeze # NEW / bdewey
      @filtered_model.refilter
      @listview.columns_autosize
      @progressbar.fraction = 1
      # Hide the progress bar.
      @appbar.children.first.visible = false
      # Refresh the status bar.
      on_books_selection_changed
      @library_listview.set_sensitive(true)
      block_return = false
    end

    block_return
  end
end

#refresh_libraries ⇒ Object 



919
920
921
922
923
924
925
926
927
928
929
930
931
932
 
# File 'lib/alexandria/ui/ui_manager.rb', line 919

def refresh_libraries
  log.debug { "refresh_libraries" }
  library = selected_library

  # Change the application's title.
  @main_app.title = library.name + " - " + TITLE

  # Disable the selected library in the move libraries actions.
  @libraries.all_regular_libraries.each do |i_library|
    action = @actiongroup[i_library.action_name]
    action.sensitive = i_library != library if action
  end
  sensitize_library library
end

#remove_library_iter ⇒ Object 



1105
1106
1107
1108
1109
1110
1111
1112
1113
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1105

def remove_library_iter
  old_iter = @library_listview.selection.selected
  # commenting out this code seems to fix #20681
  # "crashes when switching to smart library mid-load"
  # next_iter = @library_listview.selection.selected
  # next_iter.next!
  @library_listview.model.remove(old_iter)
  # @library_listview.selection.select_iter(next_iter)
end

#remove_library_separator ⇒ Object 



1134
1135
1136
1137
1138
1139
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1134

def remove_library_separator
  return if @library_separator_iter.nil? || @libraries.all_smart_libraries.any?

  @library_listview.model.remove(@library_separator_iter)
  @library_separator_iter = nil
end

#restore_preferences ⇒ Object 



957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
 
# File 'lib/alexandria/ui/ui_manager.rb', line 957

def restore_preferences
  log.debug { "Restoring preferences" }
  if @prefs.maximized
    @main_app.maximize
  else
    @main_app.move(*@prefs.position) unless @prefs.position == [0, 0]
    @main_app.resize(*@prefs.size)
    @maximized = false
  end
  @paned.position = @prefs.sidepane_position
  @actiongroup["Sidepane"].active = @prefs.sidepane_visible
  @actiongroup["Toolbar"].active = @prefs.toolbar_visible
  @actiongroup["Statusbar"].active = @prefs.statusbar_visible
  @appbar.visible = @prefs.statusbar_visible
  action = get_view_actiongroup
  action.activate
  library = nil
  unless @prefs.selected_library.nil?
    library = @libraries.all_libraries.find do |x|
      x.name == @prefs.selected_library
    end
  end
  select_a_library library
end

#save_preferences ⇒ Object 



992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
 
# File 'lib/alexandria/ui/ui_manager.rb', line 992

def save_preferences
  log.debug { "save_preferences" }
  @prefs.position = @main_app.position
  @prefs.size = @main_app.allocation.to_a[2..3]
  @prefs.maximized = @maximized
  @prefs.sidepane_position = @paned.position
  @prefs.sidepane_visible = @actiongroup["Sidepane"].active?
  @prefs.toolbar_visible = @actiongroup["Toolbar"].active?
  @prefs.statusbar_visible = @actiongroup["Statusbar"].active?
  @prefs.view_as = @notebook.page
  @prefs.selected_library = selected_library.name
  cols_width = {}
  @listview.columns.each do |c|
    cols_width[c.title] = c.width
  end
  @prefs.cols_width = "{" + cols_width.to_a.map do |t, v|
    '"' + t + '": ' + v.to_s
  end.join(", ") + "}"
  log.debug { "cols_width: #{@prefs.cols_width} " }
  @prefs.save!
end

#select_a_book(book) ⇒ Object 



534
535
536
537
 
# File 'lib/alexandria/ui/ui_manager.rb', line 534

def select_a_book(book)
  select_book_in_view(book, @listview)
  select_book_in_view(book, @iconview)
end

#select_a_library(library) ⇒ Object 



982
983
984
985
986
987
988
989
990
 
# File 'lib/alexandria/ui/ui_manager.rb', line 982

def select_a_library(library)
  if library
    select_library(library)
  else
    # Select the first item by default.
    iter = @library_listview.model.iter_first
    @library_listview.selection.select_iter(iter)
  end
end

#select_library(library) ⇒ Object 



859
860
861
862
863
864
865
866
867
868
869
870
 
# File 'lib/alexandria/ui/ui_manager.rb', line 859

def select_library(library)
  log.debug { "select library #{library}" }
  iter = @library_listview.model.iter_first
  ok = true
  while ok
    if iter[1] == library.name
      @library_listview.selection.select_iter(iter)
      break
    end
    ok = iter.next!
  end
end

#selected_books ⇒ Object 



913
914
915
916
917
 
# File 'lib/alexandria/ui/ui_manager.rb', line 913

def selected_books
  selected = collate_selected_books(@notebook.page).compact
  log.debug { "Selected books = #{selected.inspect}" }
  selected
end

#selected_library ⇒ Object 



849
850
851
852
853
854
855
856
857
 
# File 'lib/alexandria/ui/ui_manager.rb', line 849

def selected_library
  log.debug { "selected_library" }
  if (iter = @library_listview.selection.selected)
    target_name = iter[1]
    @libraries.all_libraries.find { |it| it.name == target_name }
  else
    @libraries.all_libraries.first
  end
end

#sensitize_library(library) ⇒ Object 



934
935
936
937
938
939
940
941
942
943
944
945
946
 
# File 'lib/alexandria/ui/ui_manager.rb', line 934

def sensitize_library(library)
  smart = library.is_a?(SmartLibrary)
  log.debug { "sensitize_library: smartlibrary = #{smart}" }
  GLib::Idle.add do
    @actiongroup["AddBook"].sensitive = !smart
    @actiongroup["AddBookManual"].sensitive = !smart
    @actiongroup["Properties"].sensitive = smart
    can_delete = smart || (@libraries.all_regular_libraries.length > 1)
    @actiongroup["Delete"].sensitive = can_delete
    log.debug { "sensitize_library delete: #{@actiongroup['Delete'].sensitive?}" }
    false
  end
end

#set_status_label(txt) ⇒ Object 



441
442
443
 
# File 'lib/alexandria/ui/ui_manager.rb', line 441

def set_status_label(txt)
  @status_label.text = txt
end

#setup_accel_group ⇒ Object 



211
212
213
214
 
# File 'lib/alexandria/ui/ui_manager.rb', line 211

def setup_accel_group
  log.debug { "setup_accel_group" }
  @main_app.add_accel_group(@uimanager.accel_group)
end

#setup_active_model ⇒ Object 



240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
 
# File 'lib/alexandria/ui/ui_manager.rb', line 240

def setup_active_model
  log.debug { "setting up active model" }
  # The active model.

  list = [
    GdkPixbuf::Pixbuf,    # COVER_LIST
    GdkPixbuf::Pixbuf,    # COVER_ICON
    String,         # TITLE
    String,         # TITLE_REDUCED
    String,         # AUTHORS
    String,         # ISBN
    String,         # PUBLISHER
    String,         # PUBLISH_DATE
    String,         # EDITION
    Integer,        # RATING
    String,         # IDENT
    String,         # NOTES
    TrueClass,      # REDD
    TrueClass,      # OWN
    TrueClass,      # WANT
    String,         # TAGS
    String          # LOANED TO
  ]

  @model = Gtk::ListStore.new(*list)

  # Filter books according to the search toolbar widgets.
  @filtered_model = Gtk::TreeModelFilter.new(@model)
  @filtered_model.set_visible_func do |_model, iter|
    # log.debug { "visible_func" }
    @filter_books_mode ||= 0
    filter = @filter_entry.text
    if filter.empty?
      true
    else
      data = case @filter_books_mode
             when 0
               (iter[Columns::TITLE] || "") +
                 (iter[Columns::AUTHORS] || "") +
                 (iter[Columns::ISBN] || "") +
                 (iter[Columns::PUBLISHER] || "") +
                 (iter[Columns::NOTES] || "") +
                 (iter[Columns::TAGS] || "")
             when 2 then iter[Columns::TITLE]
             when 3 then iter[Columns::AUTHORS]
             when 4 then iter[Columns::ISBN]
             when 5 then iter[Columns::PUBLISHER]
             when 6 then iter[Columns::NOTES]
             when 7 then iter[Columns::TAGS]
             end
      !data.nil? && data.downcase.include?(filter.downcase)
    end
  end

  # Give filter entry the initial keyboard focus.
  @filter_entry.grab_focus
  log.debug { "done setting up active model" }
end

#setup_book_providers ⇒ Object 



187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
 
# File 'lib/alexandria/ui/ui_manager.rb', line 187

def setup_book_providers
  log.debug { "setup_book_providers" }
  mid = @uimanager.new_merge_id
  ui_paths = ["ui/MainMenubar/ViewMenu/OnlineInformation/",
              "ui/BookPopup/OnlineInformation/",
              "ui/NoBookPopup/OnlineInformation/"]
  BookProviders.list.each do |provider|
    name = provider.action_name
    ui_paths.each do |path|
      log.debug { "Adding #{name} to #{path}" }
      @uimanager.add_ui(mid, path, name, name,
                        :menuitem, false)
    end
  end
end

#setup_books_iconview_sorting ⇒ Object 



1169
1170
1171
1172
1173
1174
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1169

def setup_books_iconview_sorting
  sort_order = @prefs.reverse_icons ? :descending : :ascending
  mode = ICONS_SORTS[@prefs.arrange_icons_mode]
  @iconview_model.set_sort_column_id(mode, sort_order)
  @filtered_model.refilter # force redraw
end

#setup_callbacks ⇒ Object 



84
85
86
87
 
# File 'lib/alexandria/ui/ui_manager.rb', line 84

def setup_callbacks
  self.class.send(:include, Callbacks)
  connect_signals
end

#setup_dependents ⇒ Object 



73
74
75
76
77
78
79
80
81
82
 
# File 'lib/alexandria/ui/ui_manager.rb', line 73

def setup_dependents
  @listview_model = Gtk::TreeModelSort.new(@filtered_model)
  @iconview_model = Gtk::TreeModelSort.new(@filtered_model)
  @listview_manager = ListViewManager.new @listview, self
  @iconview_manager = IconViewManager.new @iconview, self
  @sidepane_manager = SidepaneManager.new @library_listview, self
  @library_listview = @sidepane_manager.library_listview
  @listview_manager.setup_listview_columns_visibility
  @listview_manager.setup_listview_columns_width
end

#setup_menus ⇒ Object 



216
217
218
219
 
# File 'lib/alexandria/ui/ui_manager.rb', line 216

def setup_menus
  @menubar = @uimanager.get_widget("/MainMenubar")
  @vbox1.add(@menubar, position: 0, expand: false, fill: false)
end

#setup_move_actions ⇒ Object 



1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1030

def setup_move_actions
  @actiongroup.actions.each do |action|
    next unless action.name.start_with?("MoveIn")

    @actiongroup.remove_action(action)
  end
  actions = []
  @libraries.all_regular_libraries.each do |library|
    actions << [
      library.action_name, nil,
      _("In '_%s'") % library.name,
      nil, nil, proc { move_selected_books_to_library(library) }
    ]
  end
  @actiongroup.add_actions(actions)
  @uimanager.remove_ui(@move_mid) if @move_mid
  @move_mid = @uimanager.new_merge_id
  ui_paths = ["ui/MainMenubar/EditMenu/Move/",
              "ui/BookPopup/Move/"]
  @libraries.all_regular_libraries.each do |library|
    name = library.action_name
    ui_paths.each do |path|
      @uimanager.add_ui(@move_mid, path, name, name,
                        :menuitem, false)
    end
  end
end

#setup_popups ⇒ Object 



221
222
223
224
225
226
227
228
 
# File 'lib/alexandria/ui/ui_manager.rb', line 221

def setup_popups
  log.debug { "setup_popups" }
  @library_popup = @uimanager.get_widget("/LibraryPopup")
  @smart_library_popup = @uimanager.get_widget("/SmartLibraryPopup")
  @nolibrary_popup = @uimanager.get_widget("/NoLibraryPopup")
  @book_popup = @uimanager.get_widget("/BookPopup")
  @nobook_popup = @uimanager.get_widget("/NoBookPopup")
end

#setup_toolbar ⇒ Object 



93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
 
# File 'lib/alexandria/ui/ui_manager.rb', line 93

def setup_toolbar
  log.debug { "setup_toolbar" }
  setup_book_providers
  add_main_toolbar_items
  @toolbar = @uimanager.get_widget("/MainToolbar")
  @toolbar.show_arrow = true
  @toolbar.insert(Gtk::SeparatorToolItem.new, -1)
  setup_toolbar_combobox
  setup_toolbar_filter_entry
  @toolbar.insert(Gtk::SeparatorToolItem.new, -1)
  setup_toolbar_viewas
  @toolbar.show_all
  @actiongroup["Undo"].sensitive = @actiongroup["Redo"].sensitive = false
  UndoManager.instance.add_observer(self)
  @vbox1.add(@toolbar, position: 1, expand: false, fill: false)
end

#setup_toolbar_combobox ⇒ Object 



137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
 
# File 'lib/alexandria/ui/ui_manager.rb', line 137

def setup_toolbar_combobox
  cb = Gtk::ComboBoxText.new
  cb.set_row_separator_func do |model, iter|
    # TODO: Replace with iter[0] if possible
    model.get_value(iter, 0) == "-"
  end
  [_("Match everything"),
   "-",
   _("Title contains"),
   _("Authors contain"),
   _("ISBN contains"),
   _("Publisher contains"),
   _("Notes contain"),
   _("Tags contain")].each do |item|
    cb.append_text(item)
  end
  cb.active = 0
  cb.signal_connect("changed") { |combo| on_criterion_combobox_changed(combo) }

  # Put the combo box in a event box because it is not currently
  # possible assign a tooltip to a combo box.
  eb = Gtk::EventBox.new
  eb << cb
  @toolitem = Gtk::ToolItem.new
  @toolitem.border_width = 5
  @toolitem << eb
  @toolbar.insert(@toolitem, -1)
  eb.set_tooltip_text _("Change the search type")
end

#setup_toolbar_filter_entry ⇒ Object 



124
125
126
127
128
129
130
131
132
133
134
135
 
# File 'lib/alexandria/ui/ui_manager.rb', line 124

def setup_toolbar_filter_entry
  @filter_entry = Gtk::Entry.new
  @filter_entry.signal_connect("changed") do |entry|
    on_toolbar_filter_entry_changed(entry)
  end
  @toolitem = Gtk::ToolItem.new
  @toolitem.expand = true
  @toolitem.border_width = 5
  @filter_entry.set_tooltip_text _("Type here the search criterion")
  @toolitem << @filter_entry
  @toolbar.insert(@toolitem, -1)
end

#setup_toolbar_viewas ⇒ Object 



167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
 
# File 'lib/alexandria/ui/ui_manager.rb', line 167

def setup_toolbar_viewas
  @toolbar_view_as = Gtk::ComboBoxText.new
  @toolbar_view_as.append_text(_("View as Icons"))
  @toolbar_view_as.append_text(_("View as List"))
  @toolbar_view_as.active = 0
  @toolbar_view_as_signal_hid = @toolbar_view_as.signal_connect("changed") do |combo|
    on_toolbar_view_as_changed(combo)
  end

  # Put the combo box in a event box because it is not currently
  # possible assign a tooltip to a combo box.
  eb = Gtk::EventBox.new
  eb << @toolbar_view_as
  @toolitem = Gtk::ToolItem.new
  @toolitem.border_width = 5
  @toolitem << eb
  @toolbar.insert(@toolitem, -1)
  eb.set_tooltip_text _("Choose how to show books")
end

#setup_window_events ⇒ Object 



230
231
232
233
234
235
236
237
238
 
# File 'lib/alexandria/ui/ui_manager.rb', line 230

def setup_window_events
  log.debug { "setup_window_events" }
  @main_app.signal_connect("window-state-event") do |window, event|
    on_window_state_event(window, event)
  end
  @main_app.signal_connect("destroy") do |window|
    on_window_destroy(window)
  end
end

#setup_window_icons ⇒ Object 



1157
1158
1159
1160
1161
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1157

def setup_window_icons
  @main_app.icon = Icons::ALEXANDRIA_SMALL
  Gtk::Window.set_default_icon_name("alexandria")
  @main_app.icon_name = "alexandria"
end

#show ⇒ Object 



57
58
59
 
# File 'lib/alexandria/ui/ui_manager.rb', line 57

def show
  @main_app.show
end

#undoable_delete(library, books = nil) ⇒ Object 



1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1115

def undoable_delete(library, books = nil)
  # Deleting a library.
  if books.nil?
    library.delete_observer(self) if library.is_a?(Library)
    library.delete
    @libraries.remove_library(library)
    remove_library_separator
    remove_library_iter
    get_previous_selected_library library
    setup_move_actions
    select_library(@previous_selected_library) unless @previous_selected_library.nil?
    @previous_selected_library = nil
  else
    # Deleting books.
    books.each { |book| library.delete(book) }
  end
  UndoManager.instance.push { undoable_undelete(library, books) }
end

#undoable_move(source, dest, books) ⇒ Object 



1014
1015
1016
1017
1018
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1014

def undoable_move(source, dest, books)
  log.debug { "undoable_move" }
  Library.move(source, dest, *books)
  UndoManager.instance.push { undoable_move(dest, source, books) }
end

#undoable_undelete(library, books = nil) ⇒ Object 



1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
 
# File 'lib/alexandria/ui/ui_manager.rb', line 1141

def undoable_undelete(library, books = nil)
  # Undeleting a library.
  if books.nil?
    library.undelete
    @libraries.add_library(library)
    append_library(library)
    setup_move_actions
    library.add_observer(self) if library.is_a?(Library)
    # Undeleting books.
  else
    books.each { |book| library.undelete(book) }
  end
  select_library(library)
  UndoManager.instance.push { undoable_delete(library, books) }
end

#update(*ary) ⇒ Object 



539
540
541
542
543
544
545
546
547
548
549
550
551
 
# File 'lib/alexandria/ui/ui_manager.rb', line 539

def update(*ary)
  log.debug { "on_update #{ary}" }
  caller = ary.first
  case caller
  when UndoManager
    @actiongroup["Undo"].sensitive = caller.can_undo?
    @actiongroup["Redo"].sensitive = caller.can_redo?
  when Library
    handle_update_caller_library ary unless caller.updating?
  else
    raise _("unrecognized update event")
  end
end

#widget_names ⇒ Object 



61
62
63
64
65
 
# File 'lib/alexandria/ui/ui_manager.rb', line 61

def widget_names
  [:main_app, :paned, :vbox1, :library_listview,
   :notebook, :iconview, :listview, :status_label, :appbar,
   :progressbar]
end