707 lines
17 KiB
C
707 lines
17 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* X11 Keyboard Handling
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*
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* Copyright 2011 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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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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 <winpr/crt.h>
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#include <winpr/path.h>
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#include <winpr/collections.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/keysym.h>
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#include <X11/XKBlib.h>
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#include <freerdp/locale/keyboard.h>
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#include "xf_event.h"
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#include "xf_keyboard.h"
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#include <freerdp/log.h>
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#define TAG CLIENT_TAG("x11")
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static void xf_keyboard_send_key(xfContext* xfc, BOOL down, const XKeyEvent* ev);
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static BOOL xf_sync_kbd_state(xfContext* xfc)
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{
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const UINT32 syncFlags = xf_keyboard_get_toggle_keys_state(xfc);
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return freerdp_input_send_synchronize_event(xfc->context.input, syncFlags);
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}
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static void xf_keyboard_clear(xfContext* xfc)
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{
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ZeroMemory(xfc->KeyboardState, 256 * sizeof(BOOL));
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}
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static BOOL xf_keyboard_action_script_init(xfContext* xfc)
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{
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wObject* obj;
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FILE* keyScript;
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char* keyCombination;
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char buffer[1024] = { 0 };
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char command[1024] = { 0 };
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xfc->actionScriptExists = winpr_PathFileExists(xfc->context.settings->ActionScript);
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if (!xfc->actionScriptExists)
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return FALSE;
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xfc->keyCombinations = ArrayList_New(TRUE);
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if (!xfc->keyCombinations)
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return FALSE;
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obj = ArrayList_Object(xfc->keyCombinations);
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obj->fnObjectFree = free;
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sprintf_s(command, sizeof(command), "%s key", xfc->context.settings->ActionScript);
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keyScript = popen(command, "r");
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if (!keyScript)
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{
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xfc->actionScriptExists = FALSE;
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return FALSE;
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}
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while (fgets(buffer, sizeof(buffer), keyScript) != NULL)
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{
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char* context = NULL;
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strtok_s(buffer, "\n", &context);
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keyCombination = _strdup(buffer);
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if (!keyCombination || !ArrayList_Append(xfc->keyCombinations, keyCombination))
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{
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ArrayList_Free(xfc->keyCombinations);
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xfc->actionScriptExists = FALSE;
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pclose(keyScript);
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return FALSE;
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}
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}
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pclose(keyScript);
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return xf_event_action_script_init(xfc);
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}
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static void xf_keyboard_action_script_free(xfContext* xfc)
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{
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xf_event_action_script_free(xfc);
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if (xfc->keyCombinations)
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{
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ArrayList_Free(xfc->keyCombinations);
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xfc->keyCombinations = NULL;
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xfc->actionScriptExists = FALSE;
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}
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}
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BOOL xf_keyboard_init(xfContext* xfc)
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{
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xf_keyboard_clear(xfc);
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xfc->KeyboardLayout = xfc->context.settings->KeyboardLayout;
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xfc->KeyboardLayout =
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freerdp_keyboard_init_ex(xfc->KeyboardLayout, xfc->context.settings->KeyboardRemappingList);
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xfc->context.settings->KeyboardLayout = xfc->KeyboardLayout;
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if (xfc->modifierMap)
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XFreeModifiermap(xfc->modifierMap);
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if (!(xfc->modifierMap = XGetModifierMapping(xfc->display)))
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return FALSE;
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xf_keyboard_action_script_init(xfc);
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return TRUE;
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}
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void xf_keyboard_free(xfContext* xfc)
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{
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if (xfc->modifierMap)
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{
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XFreeModifiermap(xfc->modifierMap);
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xfc->modifierMap = NULL;
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}
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xf_keyboard_action_script_free(xfc);
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}
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void xf_keyboard_key_press(xfContext* xfc, const XKeyEvent* event, KeySym keysym)
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{
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WINPR_ASSERT(xfc);
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WINPR_ASSERT(event);
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if (event->keycode < 8)
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return;
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xfc->KeyboardState[event->keycode] = TRUE;
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if (xf_keyboard_handle_special_keys(xfc, keysym))
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return;
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xf_keyboard_send_key(xfc, TRUE, event);
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}
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void xf_keyboard_key_release(xfContext* xfc, const XKeyEvent* event, KeySym keysym)
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{
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WINPR_ASSERT(xfc);
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WINPR_ASSERT(event);
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if (event->keycode < 8)
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return;
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xfc->KeyboardState[event->keycode] = FALSE;
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xf_keyboard_handle_special_keys_release(xfc, keysym);
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xf_keyboard_send_key(xfc, FALSE, event);
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}
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void xf_keyboard_release_all_keypress(xfContext* xfc)
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{
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size_t keycode;
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DWORD rdp_scancode;
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for (keycode = 0; keycode < ARRAYSIZE(xfc->KeyboardState); keycode++)
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{
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if (xfc->KeyboardState[keycode])
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{
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rdp_scancode = freerdp_keyboard_get_rdp_scancode_from_x11_keycode(keycode);
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// release tab before releasing the windows key.
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// this stops the start menu from opening on unfocus event.
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if (rdp_scancode == RDP_SCANCODE_LWIN)
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freerdp_input_send_keyboard_event_ex(xfc->context.input, FALSE, RDP_SCANCODE_TAB);
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freerdp_input_send_keyboard_event_ex(xfc->context.input, FALSE, rdp_scancode);
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xfc->KeyboardState[keycode] = FALSE;
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}
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}
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xf_sync_kbd_state(xfc);
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}
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BOOL xf_keyboard_key_pressed(xfContext* xfc, KeySym keysym)
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{
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KeyCode keycode = XKeysymToKeycode(xfc->display, keysym);
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return xfc->KeyboardState[keycode];
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}
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void xf_keyboard_send_key(xfContext* xfc, BOOL down, const XKeyEvent* event)
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{
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DWORD rdp_scancode;
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rdpInput* input;
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WINPR_ASSERT(xfc);
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WINPR_ASSERT(event);
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input = xfc->context.input;
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WINPR_ASSERT(input);
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rdp_scancode = freerdp_keyboard_get_rdp_scancode_from_x11_keycode(event->keycode);
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if (rdp_scancode == RDP_SCANCODE_PAUSE && !xf_keyboard_key_pressed(xfc, XK_Control_L) &&
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!xf_keyboard_key_pressed(xfc, XK_Control_R))
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{
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/* Pause without Ctrl has to be sent as a series of keycodes
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* in a single input PDU. Pause only happens on "press";
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* no code is sent on "release".
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*/
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if (down)
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{
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freerdp_input_send_keyboard_pause_event(input);
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}
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}
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else
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{
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BOOL rc;
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if (freerdp_settings_get_bool(xfc->context.settings, FreeRDP_UnicodeInput))
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{
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wchar_t buffer[32] = { 0 };
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int rc = 0;
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int xwc = -1;
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switch (rdp_scancode)
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{
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case RDP_SCANCODE_RETURN:
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break;
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default:
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{
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XIM xim = XOpenIM(xfc->display, 0, 0, 0);
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XIC xic =
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XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing, NULL);
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KeySym ignore = { 0 };
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Status return_status;
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XKeyEvent ev = *event;
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ev.type = KeyPress;
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xwc = XwcLookupString(xic, &ev, buffer, ARRAYSIZE(buffer), &ignore,
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&return_status);
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}
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break;
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}
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if (xwc < 1)
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{
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if (rdp_scancode == RDP_SCANCODE_UNKNOWN)
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WLog_ERR(TAG, "Unknown key with X keycode 0x%02" PRIx8 "", event->keycode);
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else
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rc = freerdp_input_send_keyboard_event_ex(input, down, rdp_scancode);
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}
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else
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rc = freerdp_input_send_unicode_keyboard_event(input, down ? KBD_FLAGS_RELEASE : 0,
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buffer[0]);
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}
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else if (rdp_scancode == RDP_SCANCODE_UNKNOWN)
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WLog_ERR(TAG, "Unknown key with X keycode 0x%02" PRIx8 "", event->keycode);
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else
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rc = freerdp_input_send_keyboard_event_ex(input, down, rdp_scancode);
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if ((rdp_scancode == RDP_SCANCODE_CAPSLOCK) && (down == FALSE))
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{
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xf_sync_kbd_state(xfc);
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}
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}
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}
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int xf_keyboard_read_keyboard_state(xfContext* xfc)
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{
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int dummy;
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Window wdummy;
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UINT32 state = 0;
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if (!xfc->remote_app)
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{
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XQueryPointer(xfc->display, xfc->window->handle, &wdummy, &wdummy, &dummy, &dummy, &dummy,
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&dummy, &state);
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}
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else
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{
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XQueryPointer(xfc->display, DefaultRootWindow(xfc->display), &wdummy, &wdummy, &dummy,
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&dummy, &dummy, &dummy, &state);
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}
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return state;
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}
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static int xf_keyboard_get_keymask(xfContext* xfc, int keysym)
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{
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int modifierpos, key, keysymMask = 0;
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KeyCode keycode = XKeysymToKeycode(xfc->display, keysym);
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if (keycode == NoSymbol)
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return 0;
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for (modifierpos = 0; modifierpos < 8; modifierpos++)
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{
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int offset = xfc->modifierMap->max_keypermod * modifierpos;
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for (key = 0; key < xfc->modifierMap->max_keypermod; key++)
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{
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if (xfc->modifierMap->modifiermap[offset + key] == keycode)
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{
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keysymMask |= 1 << modifierpos;
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}
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}
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}
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return keysymMask;
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}
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BOOL xf_keyboard_get_key_state(xfContext* xfc, int state, int keysym)
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{
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int keysymMask = xf_keyboard_get_keymask(xfc, keysym);
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if (!keysymMask)
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return FALSE;
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return (state & keysymMask) ? TRUE : FALSE;
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}
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static BOOL xf_keyboard_set_key_state(xfContext* xfc, BOOL on, int keysym)
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{
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int keysymMask;
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if (!xfc->xkbAvailable)
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return FALSE;
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keysymMask = xf_keyboard_get_keymask(xfc, keysym);
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if (!keysymMask)
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{
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return FALSE;
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}
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return XkbLockModifiers(xfc->display, XkbUseCoreKbd, keysymMask, on ? keysymMask : 0);
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}
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UINT32 xf_keyboard_get_toggle_keys_state(xfContext* xfc)
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{
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int state;
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UINT32 toggleKeysState = 0;
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state = xf_keyboard_read_keyboard_state(xfc);
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if (xf_keyboard_get_key_state(xfc, state, XK_Scroll_Lock))
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toggleKeysState |= KBD_SYNC_SCROLL_LOCK;
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if (xf_keyboard_get_key_state(xfc, state, XK_Num_Lock))
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toggleKeysState |= KBD_SYNC_NUM_LOCK;
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if (xf_keyboard_get_key_state(xfc, state, XK_Caps_Lock))
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toggleKeysState |= KBD_SYNC_CAPS_LOCK;
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if (xf_keyboard_get_key_state(xfc, state, XK_Kana_Lock))
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toggleKeysState |= KBD_SYNC_KANA_LOCK;
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return toggleKeysState;
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}
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static void xk_keyboard_update_modifier_keys(xfContext* xfc)
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{
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int state;
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size_t i;
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KeyCode keycode;
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int keysyms[] = { XK_Shift_L, XK_Shift_R, XK_Alt_L, XK_Alt_R,
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XK_Control_L, XK_Control_R, XK_Super_L, XK_Super_R };
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xf_keyboard_clear(xfc);
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state = xf_keyboard_read_keyboard_state(xfc);
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for (i = 0; i < ARRAYSIZE(keysyms); i++)
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{
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if (xf_keyboard_get_key_state(xfc, state, keysyms[i]))
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{
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keycode = XKeysymToKeycode(xfc->display, keysyms[i]);
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xfc->KeyboardState[keycode] = TRUE;
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}
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}
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}
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void xf_keyboard_focus_in(xfContext* xfc)
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{
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rdpInput* input;
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UINT32 syncFlags, state;
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Window w;
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int d, x, y;
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if (!xfc->display || !xfc->window)
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return;
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input = xfc->context.input;
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syncFlags = xf_keyboard_get_toggle_keys_state(xfc);
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freerdp_input_send_focus_in_event(input, syncFlags);
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xk_keyboard_update_modifier_keys(xfc);
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/* finish with a mouse pointer position like mstsc.exe if required */
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if (xfc->remote_app)
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return;
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if (XQueryPointer(xfc->display, xfc->window->handle, &w, &w, &d, &d, &x, &y, &state))
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{
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if (x >= 0 && x < xfc->window->width && y >= 0 && y < xfc->window->height)
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{
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xf_event_adjust_coordinates(xfc, &x, &y);
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freerdp_input_send_mouse_event(input, PTR_FLAGS_MOVE, x, y);
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}
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}
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}
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static int xf_keyboard_execute_action_script(xfContext* xfc, XF_MODIFIER_KEYS* mod, KeySym keysym)
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{
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int index;
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int count;
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int status = 1;
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FILE* keyScript;
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const char* keyStr;
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BOOL match = FALSE;
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char* keyCombination;
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char buffer[1024] = { 0 };
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char command[2048] = { 0 };
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char combination[1024] = { 0 };
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if (!xfc->actionScriptExists)
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return 1;
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if ((keysym == XK_Shift_L) || (keysym == XK_Shift_R) || (keysym == XK_Alt_L) ||
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(keysym == XK_Alt_R) || (keysym == XK_Control_L) || (keysym == XK_Control_R))
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{
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return 1;
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}
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keyStr = XKeysymToString(keysym);
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if (keyStr == 0)
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{
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return 1;
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}
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if (mod->Shift)
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strcat(combination, "Shift+");
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if (mod->Ctrl)
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strcat(combination, "Ctrl+");
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if (mod->Alt)
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strcat(combination, "Alt+");
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if (mod->Super)
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strcat(combination, "Super+");
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strcat(combination, keyStr);
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count = ArrayList_Count(xfc->keyCombinations);
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for (index = 0; index < count; index++)
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{
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keyCombination = (char*)ArrayList_GetItem(xfc->keyCombinations, index);
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if (_stricmp(keyCombination, combination) == 0)
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{
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match = TRUE;
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break;
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}
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}
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if (!match)
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return 1;
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sprintf_s(command, sizeof(command), "%s key %s", xfc->context.settings->ActionScript,
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combination);
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keyScript = popen(command, "r");
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if (!keyScript)
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return -1;
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while (fgets(buffer, sizeof(buffer), keyScript) != NULL)
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{
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char* context = NULL;
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strtok_s(buffer, "\n", &context);
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if (strcmp(buffer, "key-local") == 0)
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status = 0;
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}
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if (pclose(keyScript) == -1)
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status = -1;
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return status;
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}
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static int xk_keyboard_get_modifier_keys(xfContext* xfc, XF_MODIFIER_KEYS* mod)
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{
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mod->LeftShift = xf_keyboard_key_pressed(xfc, XK_Shift_L);
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mod->RightShift = xf_keyboard_key_pressed(xfc, XK_Shift_R);
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mod->Shift = mod->LeftShift || mod->RightShift;
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mod->LeftAlt = xf_keyboard_key_pressed(xfc, XK_Alt_L);
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mod->RightAlt = xf_keyboard_key_pressed(xfc, XK_Alt_R);
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mod->Alt = mod->LeftAlt || mod->RightAlt;
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mod->LeftCtrl = xf_keyboard_key_pressed(xfc, XK_Control_L);
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mod->RightCtrl = xf_keyboard_key_pressed(xfc, XK_Control_R);
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mod->Ctrl = mod->LeftCtrl || mod->RightCtrl;
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mod->LeftSuper = xf_keyboard_key_pressed(xfc, XK_Super_L);
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mod->RightSuper = xf_keyboard_key_pressed(xfc, XK_Super_R);
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mod->Super = mod->LeftSuper || mod->RightSuper;
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return 0;
|
|
}
|
|
|
|
BOOL xf_keyboard_handle_special_keys(xfContext* xfc, KeySym keysym)
|
|
{
|
|
XF_MODIFIER_KEYS mod = { 0 };
|
|
xk_keyboard_get_modifier_keys(xfc, &mod);
|
|
|
|
// remember state of RightCtrl to ungrab keyboard if next action is release of RightCtrl
|
|
// do not return anything such that the key could be used by client if ungrab is not the goal
|
|
if (keysym == XK_Control_R)
|
|
{
|
|
if (mod.RightCtrl && xfc->firstPressRightCtrl)
|
|
{
|
|
// Right Ctrl is pressed, getting ready to ungrab
|
|
xfc->ungrabKeyboardWithRightCtrl = TRUE;
|
|
xfc->firstPressRightCtrl = FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// some other key has been pressed, abort ungrabbing
|
|
if (xfc->ungrabKeyboardWithRightCtrl)
|
|
xfc->ungrabKeyboardWithRightCtrl = FALSE;
|
|
}
|
|
|
|
if (!xf_keyboard_execute_action_script(xfc, &mod, keysym))
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
if (!xfc->remote_app && xfc->fullscreen_toggle)
|
|
{
|
|
if (keysym == XK_Return)
|
|
{
|
|
if (mod.Ctrl && mod.Alt)
|
|
{
|
|
/* Ctrl-Alt-Enter: toggle full screen */
|
|
xf_toggle_fullscreen(xfc);
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((keysym == XK_c) || (keysym == XK_C))
|
|
{
|
|
if (mod.Ctrl && mod.Alt)
|
|
{
|
|
/* Ctrl-Alt-C: toggle control */
|
|
if (xf_toggle_control(xfc))
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
#if 0 /* set to 1 to enable multi touch gesture simulation via keyboard */
|
|
#ifdef WITH_XRENDER
|
|
|
|
if (!xfc->remote_app && xfc->settings->MultiTouchGestures)
|
|
{
|
|
rdpContext* ctx = &xfc->context;
|
|
|
|
if (mod.Ctrl && mod.Alt)
|
|
{
|
|
int pdx = 0;
|
|
int pdy = 0;
|
|
int zdx = 0;
|
|
int zdy = 0;
|
|
|
|
switch (keysym)
|
|
{
|
|
case XK_0: /* Ctrl-Alt-0: Reset scaling and panning */
|
|
xfc->scaledWidth = xfc->sessionWidth;
|
|
xfc->scaledHeight = xfc->sessionHeight;
|
|
xfc->offset_x = 0;
|
|
xfc->offset_y = 0;
|
|
|
|
if (!xfc->fullscreen && (xfc->sessionWidth != xfc->window->width ||
|
|
xfc->sessionHeight != xfc->window->height))
|
|
{
|
|
xf_ResizeDesktopWindow(xfc, xfc->window, xfc->sessionWidth, xfc->sessionHeight);
|
|
}
|
|
|
|
xf_draw_screen(xfc, 0, 0, xfc->sessionWidth, xfc->sessionHeight);
|
|
return TRUE;
|
|
|
|
case XK_1: /* Ctrl-Alt-1: Zoom in */
|
|
zdx = zdy = 10;
|
|
break;
|
|
|
|
case XK_2: /* Ctrl-Alt-2: Zoom out */
|
|
zdx = zdy = -10;
|
|
break;
|
|
|
|
case XK_3: /* Ctrl-Alt-3: Pan left */
|
|
pdx = -10;
|
|
break;
|
|
|
|
case XK_4: /* Ctrl-Alt-4: Pan right */
|
|
pdx = 10;
|
|
break;
|
|
|
|
case XK_5: /* Ctrl-Alt-5: Pan up */
|
|
pdy = -10;
|
|
break;
|
|
|
|
case XK_6: /* Ctrl-Alt-6: Pan up */
|
|
pdy = 10;
|
|
break;
|
|
}
|
|
|
|
if (pdx != 0 || pdy != 0)
|
|
{
|
|
PanningChangeEventArgs e;
|
|
EventArgsInit(&e, "xfreerdp");
|
|
e.dx = pdx;
|
|
e.dy = pdy;
|
|
PubSub_OnPanningChange(ctx->pubSub, xfc, &e);
|
|
return TRUE;
|
|
}
|
|
|
|
if (zdx != 0 || zdy != 0)
|
|
{
|
|
ZoomingChangeEventArgs e;
|
|
EventArgsInit(&e, "xfreerdp");
|
|
e.dx = zdx;
|
|
e.dy = zdy;
|
|
PubSub_OnZoomingChange(ctx->pubSub, xfc, &e);
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif /* WITH_XRENDER defined */
|
|
#endif /* pinch/zoom/pan simulation */
|
|
return FALSE;
|
|
}
|
|
|
|
void xf_keyboard_handle_special_keys_release(xfContext* xfc, KeySym keysym)
|
|
{
|
|
if (keysym != XK_Control_R)
|
|
return;
|
|
|
|
xfc->firstPressRightCtrl = TRUE;
|
|
|
|
if (!xfc->ungrabKeyboardWithRightCtrl)
|
|
return;
|
|
|
|
// all requirements for ungrab are fulfilled, ungrabbing now
|
|
XF_MODIFIER_KEYS mod = { 0 };
|
|
xk_keyboard_get_modifier_keys(xfc, &mod);
|
|
|
|
if (!mod.RightCtrl)
|
|
{
|
|
if (!xfc->fullscreen)
|
|
{
|
|
xf_toggle_control(xfc);
|
|
}
|
|
|
|
xfc->mouse_active = FALSE;
|
|
XUngrabKeyboard(xfc->display, CurrentTime);
|
|
}
|
|
|
|
// ungrabbed
|
|
xfc->ungrabKeyboardWithRightCtrl = FALSE;
|
|
}
|
|
|
|
BOOL xf_keyboard_set_indicators(rdpContext* context, UINT16 led_flags)
|
|
{
|
|
xfContext* xfc = (xfContext*)context;
|
|
xf_keyboard_set_key_state(xfc, led_flags & KBD_SYNC_SCROLL_LOCK, XK_Scroll_Lock);
|
|
xf_keyboard_set_key_state(xfc, led_flags & KBD_SYNC_NUM_LOCK, XK_Num_Lock);
|
|
xf_keyboard_set_key_state(xfc, led_flags & KBD_SYNC_CAPS_LOCK, XK_Caps_Lock);
|
|
xf_keyboard_set_key_state(xfc, led_flags & KBD_SYNC_KANA_LOCK, XK_Kana_Lock);
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL xf_keyboard_set_ime_status(rdpContext* context, UINT16 imeId, UINT32 imeState,
|
|
UINT32 imeConvMode)
|
|
{
|
|
if (!context)
|
|
return FALSE;
|
|
|
|
WLog_WARN(TAG,
|
|
"KeyboardSetImeStatus(unitId=%04" PRIx16 ", imeState=%08" PRIx32
|
|
", imeConvMode=%08" PRIx32 ") ignored",
|
|
imeId, imeState, imeConvMode);
|
|
return TRUE;
|
|
}
|