def _key_press_cb(self, widget, event):
"""App-wide keypress handler for toplevel windows."""
# If an input widget has focus - their key handling is prioritized.
consumed = widget.propagate_key_event(event)
if consumed:
return True
if not self.enabled:
return
# See gtk sourcecode in gtkmenu.c function gtk_menu_key_press,
# which uses the same code as below when changing an accelerator.
keymap = Gdk.Keymap.get_default()
# Instead of using event.keyval, we do it the lowlevel way.
# Reason: ignoring CAPSLOCK and checking if SHIFT was pressed
state = Gdk.ModifierType(event.state & ~Gdk.ModifierType.LOCK_MASK)
res = keymap.translate_keyboard_state(event.hardware_keycode, state,
event.group)
if not res:
# PyGTK returns None when gdk_keymap_translate_keyboard_state()
# returns false. Not sure if this is a bug or a feature - the only
# time I have seen this happen is when I put my laptop into sleep
# mode.
logger.warning('translate_keyboard_state() returned None. '
'Strange key pressed?')
return
keyval = res[1]
consumed_modifiers = res[4]
# We want to ignore irrelevant modifiers like ScrollLock. The stored
# key binding does not include modifiers that affected its keyval.
modifiers = (event.state
& Gtk.accelerator_get_default_mod_mask()
& ~consumed_modifiers)
# Except that key bindings are always stored in lowercase.
keyval_lower = Gdk.keyval_to_lower(keyval)
if keyval_lower != keyval:
modifiers |= Gdk.ModifierType.SHIFT_MASK
action = self.keymap.get((keyval_lower, modifiers))
if not action and not self.fallbacks_disabled():
# try hardcoded keys
action = self.keymap2.get((keyval_lower, modifiers))
# Don't dispatch if the window is only sensitive to a subset of
# actions, and the action is not in that set.
if action is not None and isinstance(action, Gtk.Action):
win_actions = self.window_actions.get(widget, None)
if win_actions is not None:
if action.get_name() not in win_actions:
return False
# If the lookup succeeded, activate the corresponding action.
if action:
return self.activate_keydown_event(action, event)
# Otherwise, dispatch the event to the active doc.
return self._dispatch_fallthru_key_press_event(widget, event)
def translate(hardware_keycode, state, group):
# We may need to retry several times to deal with garbled text.
keymap = Gdk.Keymap.get_default()
# distinct
it = list(set([group, 0, 1, 2]))
ok_to_return = False
keyval = None
keyval_lower = None
for g in it:
res = keymap.translate_keyboard_state(hardware_keycode,
Gdk.ModifierType(0), g)
if not res:
# PyGTK returns None when gdk_keymap_translate_keyboard_state()
# returns false. Not sure if this is a bug or a feature - the only
# time I have seen this happen is when I put my laptop into sleep
# mode.
continue
keyval = res[1]
# consumed_modifiers = res[4]
lbl = Gtk.accelerator_get_label(keyval, state)
if is_ascii(lbl):
ok_to_return = True
break
if not ok_to_return:
logger.warning(
'translate_keyboard_state() returned no valid response. '
'Strange key pressed?')
return None, None, None, None
# We want to ignore irrelevant modifiers like ScrollLock. The stored
# key binding does not include modifiers that affected its keyval.
mods = Gdk.ModifierType(state & Gtk.accelerator_get_default_mod_mask())
keyval_lower = Gdk.keyval_to_lower(keyval)
# If lowercasing affects the keysym, then we need to include
# SHIFT in the modifiers. We re-upper case when we match against
# the keyval, but display and save in caseless form.
if keyval != keyval_lower:
mods |= Gdk.ModifierType.SHIFT_MASK
# So we get (<Shift>j, Shift+J) but just (plus, +). As I
# understand it.
accel_label = Gtk.accelerator_get_label(keyval_lower, mods)
return keyval, keyval_lower, accel_label, mods
def _key_press_cb(self, widget, event):
"""App-wide keypress handler for toplevel windows."""
# If an input widget has focus - their key handling is prioritized.
consumed = widget.propagate_key_event(event)
if consumed:
return True
if not self.enabled:
return
# Instead of using event.keyval, we do it the lowlevel way.
# Reason: ignoring CAPSLOCK and checking if SHIFT was pressed
keyval, keyval_lower, accel_label, modifiers = kb.translate(
event.hardware_keycode, event.state, event.group)
if not keyval:
return
# Except that key bindings are always stored in lowercase.
keyval_lower = Gdk.keyval_to_lower(keyval)
if keyval_lower != keyval:
modifiers |= Gdk.ModifierType.SHIFT_MASK
action = self.keymap.get((keyval_lower, modifiers))
if not action and not self.fallbacks_disabled():
# try hardcoded keys
action = self.keymap2.get((keyval_lower, modifiers))
# Don't dispatch if the window is only sensitive to a subset of
# actions, and the action is not in that set.
if action is not None and isinstance(action, Gtk.Action):
win_actions = self.window_actions.get(widget, None)
if win_actions is not None:
if action.get_name() not in win_actions:
return False
# If the lookup succeeded, activate the corresponding action.
if action:
return self.activate_keydown_event(action, event)
# Otherwise, dispatch the event to the active doc.
return self._dispatch_fallthru_key_press_event(widget, event)
def _edit_dialog_key_press_cb(self, dialog, event, editable):
if event.type != Gdk.EventType.KEY_PRESS:
return False
if event.is_modifier:
return False
if self._USE_NORMAL_DIALOG_KEYS:
if event.keyval == Gdk.KEY_Return:
dialog.response(Gtk.ResponseType.OK)
return True
elif event.keyval == Gdk.KEY_Escape:
dialog.response(Gtk.ResponseType.CANCEL)
return True
elif event.keyval == Gdk.KEY_BackSpace:
dialog.response(Gtk.ResponseType.REJECT)
return True
# Stolen from GTK 2.24's gtk/gtkmenu.c (gtk_menu_key_press())
# Figure out what modifiers went into determining the key symbol
keymap = Gdk.Keymap.get_default()
bound, keyval, effective_group, level, consumed_modifiers = (
keymap.translate_keyboard_state(
event.hardware_keycode,
event.state,
# https://github.com/mypaint/mypaint/issues/974
# event.group
1))
keyval = Gdk.keyval_to_lower(keyval)
mods = Gdk.ModifierType(event.state
& Gtk.accelerator_get_default_mod_mask()
& ~consumed_modifiers)
# If lowercasing affects the keysym, then we need to include
# SHIFT in the modifiers. We re-upper case when we match against
# the keyval, but display and save in caseless form.
if keyval != event.keyval:
mods |= Gdk.ModifierType.SHIFT_MASK
accel_label = Gtk.accelerator_get_label(keyval, mods)
# So we get (<Shift>j, Shift+J) but just (plus, +). As I
# understand it.
# This is rejecting some legit key combinations such as the
# arrowkeys, so I had to remove it...
# if not Gtk.accelerator_valid(keyval, mods)
# return True
clash_accel_path = None
clash_action_label = None
for path, kv, m, changed in self._get_accel_map_entries():
if (kv, m) == (keyval, mods):
clash_accel_path = path
clash_action_label = _udecode(
self._action_labels.get(
clash_accel_path,
# TRANSLATORS: Part of the keybinding dialog, refers
# TRANSLATORS: to an action bound to a key combination.
_(u"Unknown Action"),
))
break
if clash_accel_path == dialog.accel_path: # no change
self._edit_dialog_set_standard_hint(dialog)
label = str(accel_label)
dialog.accel_label_widget.set_text(label)
elif clash_accel_path:
markup_tmpl = _(
# TRANSLATORS: Warning message when attempting to assign a
# TRANSLATORS: keyboard combination that is already used.
u"<b>{accel} is already in use for '{action}'. "
u"The existing assignment will be replaced.</b>")
markup = markup_tmpl.format(
accel=lib.xml.escape(accel_label),
action=lib.xml.escape(clash_action_label),
)
self._edit_dialog_set_hint(dialog, markup)
label = u"%s (replace)" % (accel_label, )
dialog.accel_label_widget.set_text(str(label))
else:
self._edit_dialog_set_standard_hint(dialog)
label = u"%s (changed)" % (accel_label, )
dialog.accel_label_widget.set_text(label)
dialog.result_mods = mods
dialog.result_keyval = keyval
return True