mirror of https://github.com/FreeRDP/FreeRDP
153 lines
4.3 KiB
C
153 lines
4.3 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Client
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* XKB-based Keyboard Mapping to Microsoft Keyboard System
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*
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* Copyright 2009 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <freerdp/kbd.h>
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#include <freerdp/types.h>
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#include "locales.h"
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#include "layout_ids.h"
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#include "layouts_xkb.h"
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#include "keyboard.h"
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#include "libkbd.h"
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/*
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* The actual mapping from X keycodes to RDP keycodes, initialized from xkb keycodes or similar.
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* Used directly by freerdp_kbd_get_scancode_by_keycode. The mapping is a global variable,
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* but it only depends on which keycodes the X servers keyboard driver uses and is thus very static.
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*/
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RdpKeycodes x_keycode_to_rdp_keycode;
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#ifndef WITH_XKBFILE
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static unsigned int
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detect_keyboard(void *dpy, unsigned int keyboardLayoutID, char *xkbfile, size_t xkbfilelength)
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{
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xkbfile[0] = '\0';
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if (keyboardLayoutID != 0)
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DEBUG_KBD("keyboard layout configuration: %X", keyboardLayoutID);
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#if defined(sun)
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if(keyboardLayoutID == 0)
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{
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keyboardLayoutID = detect_keyboard_type_and_layout_sunos(xkbfile, xkbfilelength);
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DEBUG_KBD("detect_keyboard_type_and_layout_sunos: %X %s", keyboardLayoutID, xkbfile);
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}
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#endif
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if(keyboardLayoutID == 0)
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{
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keyboardLayoutID = detect_keyboard_layout_from_locale();
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DEBUG_KBD("detect_keyboard_layout_from_locale: %X", keyboardLayoutID);
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}
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if (keyboardLayoutID == 0)
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{
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keyboardLayoutID = 0x0409;
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DEBUG_KBD("using default keyboard layout: %X", keyboardLayoutID);
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}
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if (xkbfile[0] == '\0')
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{
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strncpy(xkbfile, "base", xkbfilelength);
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DEBUG_KBD("using default keyboard layout: %s", xkbfile);
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}
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return keyboardLayoutID;
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}
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#endif
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/*
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* Initialize global keyboard mapping and return the suggested server side layout.
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* dpy must be a X Display* or NULL.
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*/
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unsigned int
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freerdp_kbd_init(void *dpy, unsigned int keyboard_layout_id)
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{
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#ifdef WITH_XKBFILE
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if (!init_xkb(dpy))
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{
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DEBUG_KBD("Error initializing xkb");
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return 0;
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}
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if (!keyboard_layout_id)
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{
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keyboard_layout_id = detect_keyboard_layout_from_xkb(dpy);
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DEBUG_KBD("detect_keyboard_layout_from_xkb: %X", keyboard_layout_id);
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}
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init_keycodes_from_xkb(dpy, x_keycode_to_rdp_keycode);
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#else
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char xkbfile[256];
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KeycodeToVkcode keycodeToVkcode;
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int keycode;
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keyboard_layout_id = detect_keyboard(dpy, keyboard_layout_id, xkbfile, sizeof(xkbfile));
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DEBUG_KBD("Using keyboard layout 0x%X with xkb name %s and xkbfile %s",
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keyboard_layout_id, get_layout_name(keyboard_layout_id), xkbfile);
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load_keyboard_map(keycodeToVkcode, xkbfile);
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for (keycode=0; keycode<256; keycode++)
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{
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int vkcode;
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vkcode = keycodeToVkcode[keycode];
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DEBUG_KBD("X key code %3d VK %3d %-19s-> RDP keycode %d/%d",
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keycode, vkcode, virtualKeyboard[vkcode].name,
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virtualKeyboard[vkcode].extended, virtualKeyboard[vkcode].scancode);
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x_keycode_to_rdp_keycode[keycode].keycode = virtualKeyboard[vkcode].scancode;
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x_keycode_to_rdp_keycode[keycode].extended = virtualKeyboard[vkcode].extended;
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#ifdef WITH_DEBUG_KBD
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x_keycode_to_rdp_keycode[keycode].keyname = virtualKeyboard[vkcode].name;
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#endif
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}
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#endif
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return keyboard_layout_id;
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}
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rdpKeyboardLayout *
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freerdp_kbd_get_layouts(int types)
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{
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return get_keyboard_layouts(types);
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}
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uint8
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freerdp_kbd_get_scancode_by_keycode(uint8 keycode, boolean * extended)
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{
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DEBUG_KBD("%2x %4s -> %d/%d", keycode, x_keycode_to_rdp_keycode[keycode].keyname,
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x_keycode_to_rdp_keycode[keycode].extended, x_keycode_to_rdp_keycode[keycode].keycode);
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*extended = x_keycode_to_rdp_keycode[keycode].extended;
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return x_keycode_to_rdp_keycode[keycode].keycode;
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}
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uint8
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freerdp_kbd_get_scancode_by_virtualkey(int vkcode, boolean * extended)
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{
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*extended = virtualKeyboard[vkcode].extended;
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return virtualKeyboard[vkcode].scancode;
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}
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