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.



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# File 'lib/alexandria/ui/ui_manager.rb', line 34

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.



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# File 'lib/alexandria/ui/ui_manager.rb', line 27

def actiongroup
  @actiongroup
end

#appbar ⇒ Object

Returns the value of attribute appbar.



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# File 'lib/alexandria/ui/ui_manager.rb', line 27

def appbar
  @appbar
end

#filtered_model ⇒ Object

Returns the value of attribute filtered_model.



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# File 'lib/alexandria/ui/ui_manager.rb', line 27

def filtered_model
  @filtered_model
end

#iconview ⇒ Object

Returns the value of attribute iconview.



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# File 'lib/alexandria/ui/ui_manager.rb', line 27

def iconview
  @iconview
end

#iconview_model ⇒ Object

Returns the value of attribute iconview_model.



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# File 'lib/alexandria/ui/ui_manager.rb', line 27

def iconview_model
  @iconview_model
end

#listview ⇒ Object

Returns the value of attribute listview.



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# File 'lib/alexandria/ui/ui_manager.rb', line 27

def listview
  @listview
end

#listview_model ⇒ Object

Returns the value of attribute listview_model.



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# File 'lib/alexandria/ui/ui_manager.rb', line 27

def listview_model
  @listview_model
end

#main_app ⇒ Object

Returns the value of attribute main_app.



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# File 'lib/alexandria/ui/ui_manager.rb', line 27

def main_app
  @main_app
end

#model ⇒ Object (readonly)

Returns the value of attribute model.



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# File 'lib/alexandria/ui/ui_manager.rb', line 29

def model
  @model
end

#prefs ⇒ Object

Returns the value of attribute prefs.



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# File 'lib/alexandria/ui/ui_manager.rb', line 27

def prefs
  @prefs
end

Instance Method Details

#add_main_toolbar_items ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 122

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 



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

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 775

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 796

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 824

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 902

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 727

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 923

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 78

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

#current_view ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1087

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

#detach_old_libraries ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 619

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 539

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

#determine_library_popup(widget, event) ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 384

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 394

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

#fill_iter_with_book(iter, book) ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 737

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)
  iter[Columns::RATING] = Book::MAX_RATING_STARS - rating # ascending order is the default
  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 = icon.tag(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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 445

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 420

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 101

def get_preferences
  @prefs = Preferences.instance
end

#get_previous_selected_library(library) ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1124

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

#get_view_actiongroup ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 979

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

#handle_ruined_books ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 646

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 { |bi|
    new_message += "\n#{bi[1] || bi[1].inspect}"
  }
  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 == :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 => ex
                log.error { "Could not delete empty file #{filename}" }
              end
            end

            log.debug { "Trying to add #{book.title}, #{cover_uri} in library ''#{library.name}'" }
            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 => 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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 587

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 918

def iter_from_book(book)
  log.debug { book.to_s }
  iter_from_ident(book.ident)
end

#iter_from_ident(ident) ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 907

def iter_from_ident(ident)
  log.debug { ident.to_s }
  iter = @model.iter_first
  ok = true
  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



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# File 'lib/alexandria/ui/ui_manager.rb', line 1097

def library_sort_order
  # added by Cathal Mc Ginley, 23 Oct 2007
  log.debug {
    "library_sort_order #{@notebook.page}: " \
    "#{@iconview.model.inspect} #{@listview.model.inspect}"
  }
  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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 629

def load_libraries
  log.info { 'Loading Libraries...' }
  @completion_models = CompletionModels.instance
  if @libraries
    detach_old_libraries
    @libraries.reload
  else
    @libraries = Libraries.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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1051

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 398

def on_books_button_press_event(widget, event)
  log.debug { 'books_button_press_event' }
  if event_is_right_click event
    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(nil, nil, event.button, event.time)
  end
end

#on_books_selection_changed ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 461

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 {
      "@library_listview: #{@library_listview.has_focus?} " \
      "or @library_popup:#{@library_popup.has_focus?}"
    }
    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 { "on_books_selection_changed Delete: #{@actiongroup['Delete'].sensitive?}" }

    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.each do |provider|
        has_no_url = true
        begin
          has_no_url = (b.isbn.nil? || b.isbn.strip.empty? || provider.url(b).nil?)
        rescue => 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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 544

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

#on_focus(widget, _event_focus) ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 523

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 303

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.

    if library_already_selected
      sensitize_library selected_library

      GLib::Idle.add do
        menu.popup(nil, nil, event.button, event.time)
        # @clicking_on_sidepane = false
        false
      end
    else
      GLib::Idle.add do
        menu.popup(nil, nil, event.button, event.time)
        # @clicking_on_sidepane = false

        false
      end
    end

  else
    # not a right click
    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]
      obj.select_path(path)
      sensitize_library selected_library

    end

  end
end

#on_switch_page(_notebook, _page, page_num) ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 517

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

private



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# File 'lib/alexandria/ui/ui_manager.rb', line 611

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 834

def refresh_books
  log.debug { 'refresh_books' }
  @library_listview.set_sensitive(false)
  library = selected_library
  @model.clear
  @iconview.freeze
  @listview.freeze # NEW / bdewey
  @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 => 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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 950

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1134

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1163

def remove_library_separator
  if !@library_separator_iter.nil? && @libraries.all_smart_libraries.empty?
    @library_listview.model.remove(@library_separator_iter)
    @library_separator_iter = nil
  end
end

#restore_preferences ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 988

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1023

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 549

def select_a_book(book)
  select_this_book = proc do |bk, view|
    @filtered_model.refilter
    iter = iter_from_book bk
    next unless iter
    path = iter.path
    next unless view.model
    path = view_path_to_model_path(view, path)
    log.debug { "Path for #{bk.ident} is #{path}" }
    selection = view.respond_to?(:selection) ? @listview.selection : @iconview
    selection.unselect_all
    selection.select_path(path)
  end
  begin
    log.debug { 'select_a_book: listview' }
    select_this_book.call(book, @listview)
    log.debug { 'select_a_book: listview' }
    select_this_book.call(book, @iconview)
  rescue => ex
    trace = ex.backtrace.join("\n> ")
    log.warn { "Failed to automatically select book: #{ex.message} #{trace}" }
  end
  # TODO: Figure out why this frequently selects the wrong book!
end

#select_a_library(library) ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1013

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 



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

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 944

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

#selected_library ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 880

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

#sensitize_library(library) ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 965

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 457

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

#setup_accel_group ⇒ Object 



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

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

#setup_active_model ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 244

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 then
               (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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 196

def setup_book_providers
  log.debug { 'setup_book_providers' }
  mid = @uimanager.new_merge_id
  BookProviders.each do |provider|
    name = provider.action_name
    ['ui/MainMenubar/ViewMenu/OnlineInformation/',
     'ui/BookPopup/OnlineInformation/',
     'ui/NoBookPopup/OnlineInformation/'].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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1197

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 95

def setup_callbacks
  require 'alexandria/ui/callbacks'
  self.class.send(:include, Callbacks)
  connect_signals
end

#setup_dependents ⇒ Object 



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

def setup_dependents
  @listview_model = Gtk::TreeModelSort.new(model: @filtered_model)
  @iconview_model = Gtk::TreeModelSort.new(model: @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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 224

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

#setup_move_actions ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1061

def setup_move_actions
  @actiongroup.actions.each do |action|
    next unless /^MoveIn/ =~ action.name
    @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
  @libraries.all_regular_libraries.each do |library|
    name = library.action_name
    ['ui/MainMenubar/EditMenu/Move/',
     'ui/BookPopup/Move/'].each do |path|
      @uimanager.add_ui(@move_mid, path, name, name,
                        :menuitem, false)
    end
  end
end

#setup_popups ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 229

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 105

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 147

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', &method(:on_criterion_combobox_changed))

  # 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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 136

def setup_toolbar_filter_entry
  @filter_entry = Gtk::Entry.new
  @filter_entry.signal_connect('changed', &method(:on_toolbar_filter_entry_changed))
  @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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 177

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', &method(:on_toolbar_view_as_changed))

  # 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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 238

def setup_window_events
  log.debug { 'setup_window_events' }
  @main_app.signal_connect('window-state-event', &method(:on_window_state_event))
  @main_app.signal_connect('destroy', &method(:on_window_destroy))
end

#setup_window_icons ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1186

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 68

def show
  @main_app.show
end

#undoable_delete(library, books = nil) ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1144

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1045

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 1170

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 



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# File 'lib/alexandria/ui/ui_manager.rb', line 574

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

#widget_names ⇒ Object 



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# File 'lib/alexandria/ui/ui_manager.rb', line 72

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