104 lines
4.1 KiB
Python
104 lines
4.1 KiB
Python
from gi.repository import Gtk, Gdk
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# ported from https://github.com/velitasali/gnome-shell-extension-awesome-tiles
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class ShortcutDialog:
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def __init__(self, settings, settings_key):
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self.settings = settings
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self.settings_key = settings_key
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self._builder = Gtk.Builder()
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self._builder.add_from_file('./shortcut-dialog.ui')
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self.widget = self._builder.get_object('dialog')
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self.event_controller = self._builder.get_object('event-controller')
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self.key_pressed_connect_id = self.event_controller.connect('key-pressed', self._on_key_pressed)
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def _on_key_pressed(self, widget, keyval, keycode, state):
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mask = state & Gtk.accelerator_get_default_mod_mask()
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mask &= ~Gdk.ModifierType.LOCK_MASK
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done = True
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if mask == 0 and keyval == Gdk.KEY_Escape:
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self.widget.visible = False
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elif keyval == Gdk.KEY_BackSpace:
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self.settings.set_strv(self.settings_key, [])
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self.widget.close()
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elif is_binding_valid(mask, keycode, keyval) and is_accel_valid(state, keyval):
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binding = Gtk.accelerator_name_with_keycode(
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None,
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keyval,
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keycode,
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state
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)
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label = Gtk.accelerator_get_label(keyval, state)
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# hacky way to store the label, causes warnings from the WM
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self.settings.set_strv(self.settings_key, [binding, label])
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self.widget.close()
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else:
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done = False
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if done and self.key_pressed_connect_id:
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self.event_controller.disconnect(self.key_pressed_connect_id)
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self.key_pressed_connect_id = None
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return Gdk.EVENT_STOP
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def is_binding_valid(mask, keycode, keyval):
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if mask == 0 or mask == Gdk.ModifierType.SHIFT_MASK and keycode != 0:
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if keyval >= Gdk.KEY_a and keyval <= Gdk.KEY_z or \
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keyval >= Gdk.KEY_A and keyval <= Gdk.KEY_Z or \
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keyval >= Gdk.KEY_0 and keyval <= Gdk.KEY_9 or \
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keyval >= Gdk.KEY_kana_fullstop and keyval <= Gdk.KEY_semivoicedsound or \
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keyval >= Gdk.KEY_Arabic_comma and keyval <= Gdk.KEY_Arabic_sukun or \
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keyval >= Gdk.KEY_Serbian_dje and keyval <= Gdk.KEY_Cyrillic_HARDSIGN or \
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keyval >= Gdk.KEY_Greek_ALPHAaccent and keyval <= Gdk.KEY_Greek_omega or \
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keyval >= Gdk.KEY_hebrew_doublelowline and keyval <= Gdk.KEY_hebrew_taf or \
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keyval >= Gdk.KEY_Thai_kokai and keyval <= Gdk.KEY_Thai_lekkao or \
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keyval >= Gdk.KEY_Hangul_Kiyeog and keyval <= Gdk.KEY_Hangul_J_YeorinHieuh or \
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keyval == Gdk.KEY_space and mask == 0 or \
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is_keyval_forbidden(keyval):
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return False
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return True
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def is_keyval_forbidden(keyval):
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forbidden_keyvals = [
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Gdk.KEY_Home,
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Gdk.KEY_Left,
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Gdk.KEY_Up,
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Gdk.KEY_Right,
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Gdk.KEY_Down,
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Gdk.KEY_Page_Up,
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Gdk.KEY_Page_Down,
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Gdk.KEY_End,
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Gdk.KEY_Tab,
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Gdk.KEY_KP_Enter,
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Gdk.KEY_Return,
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Gdk.KEY_Mode_switch
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]
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return keyval in forbidden_keyvals
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def is_accel_valid(mask, keyval):
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return Gtk.accelerator_valid(keyval, mask) or (keyval == Gdk.KEY_Tab and mask != 0)
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def bind_shortcut_settings(window, settings, widgets):
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for widget in widgets:
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settings.connect('changed::' + widget.get_name(), lambda *args, widget=widget: reload_shortcut_widget(settings, widget))
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widget.connect('clicked', lambda *args, widget=widget: on_assign_shortcut(window, settings, widget))
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reload_shortcut_widgets(settings, widgets)
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def on_assign_shortcut(window, settings, widget):
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dialog = ShortcutDialog(settings, widget.get_name())
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dialog.widget.set_transient_for(window)
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dialog.widget.present()
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def reload_shortcut_widget(settings, widget):
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shortcut = settings.get_strv(widget.get_name())
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widget.set_label(shortcut[1] if len(shortcut) > 1 else 'Disabled')
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def reload_shortcut_widgets(settings, widgets):
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for widget in widgets:
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reload_shortcut_widget(settings, widget) |