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import termios
from gi.repository import Gtk
from gi.repository import GObject
# Control keys are intercept directly (see DESIGN.md)
CTRL = {
"<ctrl>c": termios.VINTR,
"<ctrl>z": termios.VSUSP,
"<ctrl>d": termios.VEOF,
}
class Bindings():
stylesheet = b"""
@binding-set saneterm-key-bindings {
bind "<ctrl>u" { "kill-after-output" () };
bind "<ctrl>a" { "move-input-start" () };
bind "<ctrl>e" { "move-input-end" () };
bind "<ctrl>j" { "insert-at-cursor" ("\\n") };
bind "<ctrl>w" { "delete-from-cursor" (word-ends, -1) };
bind "<ctrl>h" { "backspace" () };
bind "Up" { "history-entry" (1) };
bind "Down" { "history-entry" (-1) };
/* Since <ctrl>c is used for VINTR, unbind <ctrl>v */
unbind "<ctrl>v";
}
* {
-gtk-key-bindings: saneterm-key-bindings;
}
"""
def __init__(self, widget):
self.provider = Gtk.CssProvider()
self.provider.load_from_data(self.stylesheet)
style_ctx = widget.get_style_context()
style_ctx.add_provider(self.provider,
Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION)
def add_bind(self, key, signal, arg):
bindings = self.__binding_set()
# Using Gtk.BindingEntry.add_signall() would be preferable
# https://gitlab.gnome.org/GNOME/pygobject/-/issues/474
Gtk.BindingEntry().add_signal_from_string(bindings,
F'bind "{key}" {{ "{signal}" ({arg}) }};')
def __binding_set(self):
return Gtk.BindingSet.find("saneterm-key-bindings")
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