FreeRDP/client/X11/xf_keyboard.c
2012-09-22 14:27:30 -04:00

213 lines
5.4 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Client
* X11 Keyboard Handling
*
* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include "xf_keyboard.h"
void xf_kbd_init(xfInfo* xfi)
{
xf_kbd_clear(xfi);
xfi->keyboard_layout_id = xfi->instance->settings->kbd_layout;
xfi->keyboard_layout_id = freerdp_keyboard_init(xfi->keyboard_layout_id);
xfi->instance->settings->kbd_layout = xfi->keyboard_layout_id;
}
void xf_kbd_clear(xfInfo* xfi)
{
memset(xfi->pressed_keys, 0, 256 * sizeof(boolean));
}
void xf_kbd_set_keypress(xfInfo* xfi, uint8 keycode, KeySym keysym)
{
if (keycode >= 8)
xfi->pressed_keys[keycode] = keysym;
else
return;
}
void xf_kbd_unset_keypress(xfInfo* xfi, uint8 keycode)
{
if (keycode >= 8)
xfi->pressed_keys[keycode] = NoSymbol;
else
return;
}
void xf_kbd_release_all_keypress(xfInfo* xfi)
{
int keycode;
RDP_SCANCODE rdp_scancode;
for (keycode = 0; keycode < ARRAY_SIZE(xfi->pressed_keys); keycode++)
{
if (xfi->pressed_keys[keycode] != NoSymbol)
{
rdp_scancode = freerdp_keyboard_get_rdp_scancode_from_x11_keycode(keycode);
freerdp_input_send_keyboard_event_ex(xfi->instance->input, false, rdp_scancode);
xfi->pressed_keys[keycode] = NoSymbol;
}
}
}
boolean xf_kbd_key_pressed(xfInfo* xfi, KeySym keysym)
{
KeyCode keycode = XKeysymToKeycode(xfi->display, keysym);
return (xfi->pressed_keys[keycode] == keysym);
}
void xf_kbd_send_key(xfInfo* xfi, boolean down, uint8 keycode)
{
RDP_SCANCODE rdp_scancode;
rdpInput* input;
input = xfi->instance->input;
rdp_scancode = freerdp_keyboard_get_rdp_scancode_from_x11_keycode(keycode);
if (rdp_scancode == RDP_SCANCODE_UNKNOWN)
{
printf("Unknown key with X keycode 0x%02x\n", keycode);
}
else if (rdp_scancode == RDP_SCANCODE_PAUSE &&
!xf_kbd_key_pressed(xfi, XK_Control_L) && !xf_kbd_key_pressed(xfi, XK_Control_R))
{
/* Pause without Ctrl has to be sent as Ctrl + NumLock. */
if (down)
{
freerdp_input_send_keyboard_event_ex(input, true, RDP_SCANCODE_LCONTROL);
freerdp_input_send_keyboard_event_ex(input, true, RDP_SCANCODE_NUMLOCK);
freerdp_input_send_keyboard_event_ex(input, false, RDP_SCANCODE_LCONTROL);
freerdp_input_send_keyboard_event_ex(input, false, RDP_SCANCODE_NUMLOCK);
}
}
else
{
freerdp_input_send_keyboard_event_ex(input, down, rdp_scancode);
if ((rdp_scancode == RDP_SCANCODE_CAPSLOCK) && (down == false))
{
uint32 syncFlags;
syncFlags = xf_kbd_get_toggle_keys_state(xfi);
input->SynchronizeEvent(input, syncFlags);
}
}
}
int xf_kbd_read_keyboard_state(xfInfo* xfi)
{
int dummy;
Window wdummy;
uint32 state = 0;
if (xfi->remote_app != true)
{
XQueryPointer(xfi->display, xfi->window->handle,
&wdummy, &wdummy, &dummy, &dummy, &dummy, &dummy, &state);
}
else
{
XQueryPointer(xfi->display, DefaultRootWindow(xfi->display),
&wdummy, &wdummy, &dummy, &dummy, &dummy, &dummy, &state);
}
return state;
}
boolean xf_kbd_get_key_state(xfInfo* xfi, int state, int keysym)
{
int offset;
int modifierpos, key, keysymMask = 0;
KeyCode keycode = XKeysymToKeycode(xfi->display, keysym);
if (keycode == NoSymbol)
return false;
for (modifierpos = 0; modifierpos < 8; modifierpos++)
{
offset = xfi->modifier_map->max_keypermod * modifierpos;
for (key = 0; key < xfi->modifier_map->max_keypermod; key++)
{
if (xfi->modifier_map->modifiermap[offset + key] == keycode)
{
keysymMask |= 1 << modifierpos;
}
}
}
return (state & keysymMask) ? true : false;
}
int xf_kbd_get_toggle_keys_state(xfInfo* xfi)
{
int state;
int toggle_keys_state = 0;
state = xf_kbd_read_keyboard_state(xfi);
if (xf_kbd_get_key_state(xfi, state, XK_Scroll_Lock))
toggle_keys_state |= KBD_SYNC_SCROLL_LOCK;
if (xf_kbd_get_key_state(xfi, state, XK_Num_Lock))
toggle_keys_state |= KBD_SYNC_NUM_LOCK;
if (xf_kbd_get_key_state(xfi, state, XK_Caps_Lock))
toggle_keys_state |= KBD_SYNC_CAPS_LOCK;
if (xf_kbd_get_key_state(xfi, state, XK_Kana_Lock))
toggle_keys_state |= KBD_SYNC_KANA_LOCK;
return toggle_keys_state;
}
void xf_kbd_focus_in(xfInfo* xfi)
{
rdpInput* input;
uint32 syncFlags;
input = xfi->instance->input;
/* on focus in send a tab up like mstsc.exe */
input->KeyboardEvent(input, KBD_FLAGS_RELEASE, 0x0F);
/* synchronize toggle keys */
syncFlags = xf_kbd_get_toggle_keys_state(xfi);
input->SynchronizeEvent(input, syncFlags);
}
boolean xf_kbd_handle_special_keys(xfInfo* xfi, KeySym keysym)
{
if (keysym == XK_Return)
{
if ((xf_kbd_key_pressed(xfi, XK_Alt_L) || xf_kbd_key_pressed(xfi, XK_Alt_R))
&& (xf_kbd_key_pressed(xfi, XK_Control_L) || xf_kbd_key_pressed(xfi, XK_Control_R)))
{
/* Ctrl-Alt-Enter: toggle full screen */
xf_toggle_fullscreen(xfi);
return true;
}
}
return false;
}