From 6451a495637c6e3047a5a56573cffc6e3de9a515 Mon Sep 17 00:00:00 2001 From: Alessandro Ghedini Date: Wed, 19 Oct 2011 10:56:04 +0200 Subject: Imported Upstream version 0.2+gitdfdad95 --- src/utilities/key.vala | 139 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 src/utilities/key.vala (limited to 'src/utilities/key.vala') diff --git a/src/utilities/key.vala b/src/utilities/key.vala new file mode 100644 index 0000000..6700b16 --- /dev/null +++ b/src/utilities/key.vala @@ -0,0 +1,139 @@ +/* +Copyright (c) 2011 by Simon Schneegans + +This program is free software: you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the Free +Software Foundation, either version 3 of the License, or (at your option) +any later version. + +This program is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see . +*/ + +namespace GnomePie { + +///////////////////////////////////////////////////////////////////////// +/// A class which represents a key stroke. It can be used to "press" +/// the associated keys. +///////////////////////////////////////////////////////////////////////// + +public class Key : GLib.Object { + + ///////////////////////////////////////////////////////////////////// + /// Some static members, which are often used by this class. + ///////////////////////////////////////////////////////////////////// + + private static X.Display display; + + private static int shift_code; + private static int ctrl_code; + private static int alt_code; + private static int super_code; + + ///////////////////////////////////////////////////////////////////// + /// A human readable form of the Key's accelerator. + ///////////////////////////////////////////////////////////////////// + + public string label { get; private set; } + + ///////////////////////////////////////////////////////////////////// + /// The accelerator of the Key. + ///////////////////////////////////////////////////////////////////// + + public string accelerator { get; private set; } + + ///////////////////////////////////////////////////////////////////// + /// Keycode and modifiers of this stroke. + ///////////////////////////////////////////////////////////////////// + + private int key_code; + private Gdk.ModifierType modifiers; + + ///////////////////////////////////////////////////////////////////// + /// C'tor, initializes all members. + ///////////////////////////////////////////////////////////////////// + + public Key(string stroke) { + this.accelerator = stroke; + + uint keysym; + Gtk.accelerator_parse(stroke, out keysym, out this.modifiers); + this.key_code = display.keysym_to_keycode(keysym); + this.label = Gtk.accelerator_get_label(keysym, this.modifiers); + } + + ///////////////////////////////////////////////////////////////////// + /// Initializes static members. + ///////////////////////////////////////////////////////////////////// + + static construct { + display = new X.Display(); + + shift_code = display.keysym_to_keycode(Gdk.keyval_from_name("Shift_L")); + ctrl_code = display.keysym_to_keycode(Gdk.keyval_from_name("Control_L")); + alt_code = display.keysym_to_keycode(Gdk.keyval_from_name("Alt_L")); + super_code = display.keysym_to_keycode(Gdk.keyval_from_name("Super_L")); + } + + ///////////////////////////////////////////////////////////////////// + /// Simulates the pressing of the Key . + ///////////////////////////////////////////////////////////////////// + + public void press() { + // store currently pressed modifier keys + Gdk.ModifierType current_modifiers = get_modifiers(); + + // release them and press the desired ones + press_modifiers(current_modifiers, false); + press_modifiers(this.modifiers, true); + + // send events to X + display.flush(); + + // press and release the actual key + X.Test.fake_key_event(this.display, this.key_code, true, 0); + X.Test.fake_key_event(this.display, this.key_code, false, 0); + + // release the pressed modifiers and re-press the keys hold down by the user + press_modifiers(this.modifiers, false); + press_modifiers(current_modifiers, true); + + // send events to X + display.flush(); + } + + ///////////////////////////////////////////////////////////////////// + /// Helper method returning currently hold down modifier keys. + ///////////////////////////////////////////////////////////////////// + + private Gdk.ModifierType get_modifiers() { + Gdk.ModifierType modifiers; + Gdk.Display.get_default().get_pointer(null, null, null, out modifiers); + return modifiers; + } + + ///////////////////////////////////////////////////////////////////// + /// Helper method which 'presses' the desired modifier keys. + ///////////////////////////////////////////////////////////////////// + + private void press_modifiers(Gdk.ModifierType modifiers, bool down) { + if ((modifiers & Gdk.ModifierType.CONTROL_MASK) > 0) + X.Test.fake_key_event(this.display, this.ctrl_code, down, 0); + + if ((modifiers & Gdk.ModifierType.SHIFT_MASK) > 0) + X.Test.fake_key_event(this.display, this.shift_code, down, 0); + + if ((modifiers & Gdk.ModifierType.MOD1_MASK) > 0) + X.Test.fake_key_event(this.display, this.alt_code, down, 0); + + if ((modifiers & Gdk.ModifierType.SUPER_MASK) > 0) + X.Test.fake_key_event(this.display, this.super_code, down, 0); + } +} + +} -- cgit v1.2.3