381 lines
9.2 KiB
C
381 lines
9.2 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 <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/keysym.h>
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#include <freerdp/locale/keyboard.h>
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#include "xf_keyboard.h"
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void xf_keyboard_init(xfContext* xfc)
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{
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xf_keyboard_clear(xfc);
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xfc->KeyboardLayout = xfc->instance->settings->KeyboardLayout;
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xfc->KeyboardLayout = freerdp_keyboard_init(xfc->KeyboardLayout);
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xfc->instance->settings->KeyboardLayout = xfc->KeyboardLayout;
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if (xfc->modifierMap)
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XFreeModifiermap(xfc->modifierMap);
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xfc->modifierMap = XGetModifierMapping(xfc->display);
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}
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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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void xf_keyboard_key_press(xfContext* xfc, BYTE keycode, KeySym keysym)
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{
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if (keycode < 8)
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return;
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xfc->KeyboardState[keycode] = keysym;
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}
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void xf_keyboard_key_release(xfContext* xfc, BYTE keycode)
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{
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if (keycode < 8)
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return;
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xfc->KeyboardState[keycode] = NoSymbol;
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}
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void xf_keyboard_release_all_keypress(xfContext* xfc)
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{
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int 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] != NoSymbol)
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{
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rdp_scancode = freerdp_keyboard_get_rdp_scancode_from_x11_keycode(keycode);
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freerdp_input_send_keyboard_event_ex(xfc->instance->input, FALSE, rdp_scancode);
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xfc->KeyboardState[keycode] = NoSymbol;
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}
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}
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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] == keysym);
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}
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void xf_keyboard_send_key(xfContext* xfc, BOOL down, BYTE keycode)
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{
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DWORD rdp_scancode;
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rdpInput* input;
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input = xfc->instance->input;
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rdp_scancode = freerdp_keyboard_get_rdp_scancode_from_x11_keycode(keycode);
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if (rdp_scancode == RDP_SCANCODE_UNKNOWN)
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{
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fprintf(stderr, "Unknown key with X keycode 0x%02x\n", keycode);
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}
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else if (rdp_scancode == RDP_SCANCODE_PAUSE &&
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!xf_keyboard_key_pressed(xfc, XK_Control_L) && !xf_keyboard_key_pressed(xfc, XK_Control_R))
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{
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/* Pause without Ctrl has to be sent as Ctrl + NumLock. */
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if (down)
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{
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freerdp_input_send_keyboard_event_ex(input, TRUE, RDP_SCANCODE_LCONTROL);
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freerdp_input_send_keyboard_event_ex(input, TRUE, RDP_SCANCODE_NUMLOCK);
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freerdp_input_send_keyboard_event_ex(input, FALSE, RDP_SCANCODE_LCONTROL);
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freerdp_input_send_keyboard_event_ex(input, FALSE, RDP_SCANCODE_NUMLOCK);
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}
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}
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else
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{
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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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UINT32 syncFlags;
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syncFlags = xf_keyboard_get_toggle_keys_state(xfc);
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input->SynchronizeEvent(input, syncFlags);
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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,
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&wdummy, &wdummy, &dummy, &dummy, &dummy, &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),
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&wdummy, &wdummy, &dummy, &dummy, &dummy, &dummy, &state);
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}
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return state;
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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 offset;
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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 FALSE;
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for (modifierpos = 0; modifierpos < 8; modifierpos++)
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{
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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 (state & keysymMask) ? TRUE : FALSE;
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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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void xf_keyboard_focus_in(xfContext* xfc)
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{
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rdpInput* input;
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UINT32 syncFlags;
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int dummy, mouseX, mouseY;
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Window wdummy;
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UINT32 state = 0;
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if (xfc->display && xfc->window)
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{
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input = xfc->instance->input;
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syncFlags = xf_keyboard_get_toggle_keys_state(xfc);
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XQueryPointer(xfc->display, xfc->window->handle, &wdummy, &wdummy, &mouseX, &mouseY, &dummy, &dummy, &state);
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input->FocusInEvent(input, syncFlags, mouseX, mouseY);
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}
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}
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BOOL xf_keyboard_handle_special_keys(xfContext* xfc, KeySym keysym)
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{
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if (keysym == XK_Return)
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{
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if ((xf_keyboard_key_pressed(xfc, XK_Alt_L) || xf_keyboard_key_pressed(xfc, XK_Alt_R))
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&& (xf_keyboard_key_pressed(xfc, XK_Control_L) || xf_keyboard_key_pressed(xfc, XK_Control_R)))
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{
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/* Ctrl-Alt-Enter: toggle full screen */
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xf_toggle_fullscreen(xfc);
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return TRUE;
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}
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}
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if (keysym == XK_period)
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{
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if ((xf_keyboard_key_pressed(xfc, XK_Alt_L)
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|| xf_keyboard_key_pressed(xfc, XK_Alt_R))
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&& (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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/* Zoom In (scale larger) */
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double s = xfc->settings->ScalingFactor;
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s += 0.1;
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if (s > 2.0)
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s = 2.0;
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xfc->settings->ScalingFactor = s;
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xfc->currentWidth = xfc->originalWidth * s;
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xfc->currentHeight = xfc->originalHeight * s;
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xf_transform_window(xfc);
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{
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ResizeWindowEventArgs e;
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EventArgsInit(&e, "xfreerdp");
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e.width = (int) xfc->originalWidth * xfc->settings->ScalingFactor;
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e.height = (int) xfc->originalHeight * xfc->settings->ScalingFactor;
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PubSub_OnResizeWindow(((rdpContext*) xfc)->pubSub, xfc, &e);
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}
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xf_draw_screen_scaled(xfc, 0, 0, 0, 0, FALSE);
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return TRUE;
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}
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}
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if (keysym == XK_comma)
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{
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if ((xf_keyboard_key_pressed(xfc, XK_Alt_L)
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|| xf_keyboard_key_pressed(xfc, XK_Alt_R))
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&& (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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/* Zoom Out (scale smaller) */
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double s = xfc->settings->ScalingFactor;
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s -= 0.1;
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if (s < 0.5)
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s = 0.5;
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xfc->settings->ScalingFactor = s;
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xfc->currentWidth = xfc->originalWidth * s;
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xfc->currentHeight = xfc->originalHeight * s;
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xf_transform_window(xfc);
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{
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ResizeWindowEventArgs e;
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EventArgsInit(&e, "xfreerdp");
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e.width = (int) xfc->originalWidth * xfc->settings->ScalingFactor;
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e.height = (int) xfc->originalHeight * xfc->settings->ScalingFactor;
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PubSub_OnResizeWindow(((rdpContext*) xfc)->pubSub, xfc, &e);
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}
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xf_draw_screen_scaled(xfc, 0, 0, 0, 0, FALSE);
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return TRUE;
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}
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}
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if (keysym == XK_KP_4)
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{
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if ((xf_keyboard_key_pressed(xfc, XK_Alt_L)
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|| xf_keyboard_key_pressed(xfc, XK_Alt_R))
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&& (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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{
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PanningChangeEventArgs e;
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EventArgsInit(&e, "xfreerdp");
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e.XPan = -5;
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e.YPan = 0;
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PubSub_OnPanningChange(((rdpContext*) xfc)->pubSub, xfc, &e);
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}
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return TRUE;
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}
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}
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if (keysym == XK_KP_6)
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{
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if ((xf_keyboard_key_pressed(xfc, XK_Alt_L)
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|| xf_keyboard_key_pressed(xfc, XK_Alt_R))
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&& (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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{
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PanningChangeEventArgs e;
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EventArgsInit(&e, "xfreerdp");
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e.XPan = 5;
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e.YPan = 0;
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PubSub_OnPanningChange(((rdpContext*) xfc)->pubSub, xfc, &e);
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}
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return TRUE;
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}
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}
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if (keysym == XK_KP_8)
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{
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if ((xf_keyboard_key_pressed(xfc, XK_Alt_L)
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|| xf_keyboard_key_pressed(xfc, XK_Alt_R))
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&& (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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{
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PanningChangeEventArgs e;
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EventArgsInit(&e, "xfreerdp");
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e.XPan = 0;
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e.YPan = -5;
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PubSub_OnPanningChange(((rdpContext*) xfc)->pubSub, xfc, &e);
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}
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return TRUE;
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}
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}
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if (keysym == XK_KP_2)
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{
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if ((xf_keyboard_key_pressed(xfc, XK_Alt_L)
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|| xf_keyboard_key_pressed(xfc, XK_Alt_R))
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&& (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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{
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PanningChangeEventArgs e;
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EventArgsInit(&e, "xfreerdp");
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e.XPan = 0;
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e.YPan = 5;
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PubSub_OnPanningChange(((rdpContext*) xfc)->pubSub, xfc, &e);
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}
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return TRUE;
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}
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}
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return FALSE;
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}
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