Gtk4 SearchBar Example Python 2022

gtk4-search-example-python-pygobject-libadwaita-2022.py

# Thanks to @keremgokcek for helping to make the search action.
import gi, sys
gi.require_version (
  'Gtk',
  '4.0'
)
gi.require_version (
  'Adw',
  '1'
)
from gi.repository import Gtk, Adw, GLib, Gio, Gdk

class MainWindow (Gtk.ApplicationWindow):
  def __init__ (self, *args, **kwargs):
    super ().__init__ (*args, **kwargs)
    GLib.set_prgname ("GTK Search Bar denemesi.")
    GLib.set_application_name ("GTK Search Bar denemesi.")

    self.box_main = Gtk.Box (orientation = Gtk.Orientation.VERTICAL)
    self.set_child (self.box_main)
    self.hb = Gtk.HeaderBar ()
    self.set_titlebar (self.hb)
    self.tgl_search = Gtk.ToggleButton (
      icon_name = 'system-search-symbolic'
    )
    self.tgl_search.connect (
      'toggled',
      self.on_tgl_search_toggle
    )
    self.hb.pack_start (self.tgl_search)

    self.ent_sb = Gtk.SearchEntry (
      placeholder_text = "Ne aramıştınız?"
    )

    self.sb = Gtk.SearchBar (
      halign = Gtk.Align.FILL,
      hexpand = True,
      valign = Gtk.Align.START,
      show_close_button = True
    )
    self.sb.connect_entry (self.ent_sb)
    self.sb.set_child (self.ent_sb)
    self.box_main.append (self.sb)

    self.sb.set_key_capture_widget (
      self.ent_sb
    )

    self.controller = Gtk.EventControllerKey()
    self.controller.connect('key-released', self.on_key_released)
    self.add_controller(self.controller)

    self.listbox = Gtk.ListBox (
      margin_top = 10,
      margin_bottom = 10,
      margin_start = 10,
      margin_end = 10
    )
    self.listbox.get_style_context ().add_class ('boxed-list')
    self.box_main.append (self.listbox)

    self.row1 = Adw.ActionRow (
      title = "Yardım"
    )
    self.listbox.append(self.row1)
    self.row2 = Adw.ActionRow (
      title = "Oyun"
    )
    self.listbox.append(self.row2)
    self.row3 = Adw.ActionRow (
      title = "Hakkında"
    )
    self.listbox.append(self.row3)
    self.row4 = Adw.ActionRow (
      title = "Hıyar"
    )
    self.listbox.append(self.row4)
    self.ent_sb.connect('changed', self.on_sb_change)


  def on_key_released(self, widget, keyval, keycode, state):
      keyname = Gdk.keyval_name(keyval)
      if Gdk.ModifierType.CONTROL_MASK & state and keyname == 'f':
          if self.sb.get_search_mode():
              self.sb.set_search_mode(False)
          else:
              self.sb.set_search_mode(True)

  def sort_func(self, row1: Adw.ActionRow, row2: Adw.ActionRow):
    if row1.get_title() < row2.get_title():
        return -1
    elif row1.get_title() > row2.get_title():
        return 1
    else:
        return 0

  def filter_func(self, row):
    return row.get_title().lower().startswith(self.ent_sb.get_text().lower())

  def on_sb_change(self, widget):
    self.listbox.invalidate_filter()
    self.listbox.set_filter_func(self.filter_func)
    self.listbox.invalidate_sort()
    self.listbox.set_sort_func(sort_func=self.sort_func)

  def on_tgl_search_toggle (self, widget):
    if self.tgl_search.get_active ():
      self.sb.set_search_mode (True)
    else:
      self.sb.set_search_mode (False)

class MyApp (Adw.Application):
  def __init__ (self, **kwargs):
    super ().__init__ (**kwargs)
    self.connect (
      'activate',
      self.on_activate
    )
  def on_activate (self, app):
    win = MainWindow (
      application = app
    )
    win.present ()

app = MyApp (
  application_id = 'io.github.napim'
)
app.run (sys.argv)

hi
thanks for this code
you don't have to set sort function after call invalidate_sort()

also filter function