281 lines
8.8 KiB
C
281 lines
8.8 KiB
C
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/*
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* Copyright (C) 2013 Glyptodon LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "config.h"
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#include "client.h"
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#include "input.h"
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#include "rdp.h"
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#include "rdp_keymap.h"
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#include <freerdp/freerdp.h>
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#include <freerdp/input.h>
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#include <guacamole/client.h>
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#ifdef HAVE_FREERDP_DISPLAY_UPDATE_SUPPORT
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#include "rdp_disp.h"
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#endif
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#include <pthread.h>
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#include <stdlib.h>
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int guac_rdp_send_keysym(guac_client* client, int keysym, int pressed) {
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guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
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freerdp* rdp_inst = rdp_client->rdp_inst;
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/* Skip if not yet connected */
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if (rdp_inst == NULL)
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return 0;
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/* If keysym can be in lookup table */
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if (GUAC_RDP_KEYSYM_STORABLE(keysym)) {
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int pressed_flags;
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/* Look up scancode mapping */
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const guac_rdp_keysym_desc* keysym_desc =
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&GUAC_RDP_KEYSYM_LOOKUP(rdp_client->keymap, keysym);
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/* If defined, send event */
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if (keysym_desc->scancode != 0) {
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pthread_mutex_lock(&(rdp_client->rdp_lock));
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/* If defined, send any prerequesite keys that must be set */
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if (keysym_desc->set_keysyms != NULL)
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guac_rdp_update_keysyms(client, keysym_desc->set_keysyms, 0, 1);
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/* If defined, release any keys that must be cleared */
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if (keysym_desc->clear_keysyms != NULL)
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guac_rdp_update_keysyms(client, keysym_desc->clear_keysyms, 1, 0);
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/* Determine proper event flag for pressed state */
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if (pressed)
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pressed_flags = KBD_FLAGS_DOWN;
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else
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pressed_flags = KBD_FLAGS_RELEASE;
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/* Send actual key */
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rdp_inst->input->KeyboardEvent(rdp_inst->input, keysym_desc->flags | pressed_flags,
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keysym_desc->scancode);
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/* If defined, release any keys that were originally released */
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if (keysym_desc->set_keysyms != NULL)
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guac_rdp_update_keysyms(client, keysym_desc->set_keysyms, 0, 0);
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/* If defined, send any keys that were originally set */
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if (keysym_desc->clear_keysyms != NULL)
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guac_rdp_update_keysyms(client, keysym_desc->clear_keysyms, 1, 1);
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pthread_mutex_unlock(&(rdp_client->rdp_lock));
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return 0;
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}
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}
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/* Fall back to unicode events if undefined inside current keymap */
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/* Only send when key pressed - Unicode events do not have
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* DOWN/RELEASE flags */
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if (pressed) {
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guac_client_log(client, GUAC_LOG_DEBUG,
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"Sending keysym 0x%x as Unicode", keysym);
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/* Translate keysym into codepoint */
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int codepoint;
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if (keysym <= 0xFF)
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codepoint = keysym;
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else if (keysym >= 0x1000000)
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codepoint = keysym & 0xFFFFFF;
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else {
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guac_client_log(client, GUAC_LOG_DEBUG,
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"Unmapped keysym has no equivalent unicode "
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"value: 0x%x", keysym);
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return 0;
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}
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pthread_mutex_lock(&(rdp_client->rdp_lock));
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/* Send Unicode event */
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rdp_inst->input->UnicodeKeyboardEvent(
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rdp_inst->input,
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0, codepoint);
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pthread_mutex_unlock(&(rdp_client->rdp_lock));
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}
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return 0;
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}
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void guac_rdp_update_keysyms(guac_client* client, const int* keysym_string, int from, int to) {
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guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
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int keysym;
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/* Send all keysyms in string, NULL terminated */
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while ((keysym = *keysym_string) != 0) {
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/* Get current keysym state */
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int current_state = GUAC_RDP_KEYSYM_LOOKUP(rdp_client->keysym_state, keysym);
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/* If key is currently in given state, send event for changing it to specified "to" state */
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if (current_state == from)
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guac_rdp_send_keysym(client, *keysym_string, to);
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/* Next keysym */
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keysym_string++;
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}
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}
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int guac_rdp_user_mouse_handler(guac_user* user, int x, int y, int mask) {
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guac_client* client = user->client;
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guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
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freerdp* rdp_inst = rdp_client->rdp_inst;
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/* Store current mouse location */
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guac_common_cursor_move(rdp_client->display->cursor, user, x, y);
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/* Skip if not yet connected */
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if (rdp_inst == NULL)
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return 0;
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pthread_mutex_lock(&(rdp_client->rdp_lock));
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/* If button mask unchanged, just send move event */
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if (mask == rdp_client->mouse_button_mask)
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rdp_inst->input->MouseEvent(rdp_inst->input, PTR_FLAGS_MOVE, x, y);
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/* Otherwise, send events describing button change */
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else {
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/* Mouse buttons which have JUST become released */
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int released_mask = rdp_client->mouse_button_mask & ~mask;
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/* Mouse buttons which have JUST become pressed */
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int pressed_mask = ~rdp_client->mouse_button_mask & mask;
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/* Release event */
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if (released_mask & 0x07) {
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/* Calculate flags */
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int flags = 0;
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if (released_mask & 0x01) flags |= PTR_FLAGS_BUTTON1;
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if (released_mask & 0x02) flags |= PTR_FLAGS_BUTTON3;
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if (released_mask & 0x04) flags |= PTR_FLAGS_BUTTON2;
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rdp_inst->input->MouseEvent(rdp_inst->input, flags, x, y);
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}
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/* Press event */
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if (pressed_mask & 0x07) {
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/* Calculate flags */
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int flags = PTR_FLAGS_DOWN;
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if (pressed_mask & 0x01) flags |= PTR_FLAGS_BUTTON1;
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if (pressed_mask & 0x02) flags |= PTR_FLAGS_BUTTON3;
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if (pressed_mask & 0x04) flags |= PTR_FLAGS_BUTTON2;
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if (pressed_mask & 0x08) flags |= PTR_FLAGS_WHEEL | 0x78;
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if (pressed_mask & 0x10) flags |= PTR_FLAGS_WHEEL | PTR_FLAGS_WHEEL_NEGATIVE | 0x88;
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/* Send event */
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rdp_inst->input->MouseEvent(rdp_inst->input, flags, x, y);
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}
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/* Scroll event */
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if (pressed_mask & 0x18) {
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/* Down */
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if (pressed_mask & 0x08)
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rdp_inst->input->MouseEvent(
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rdp_inst->input,
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PTR_FLAGS_WHEEL | 0x78,
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x, y);
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/* Up */
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if (pressed_mask & 0x10)
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rdp_inst->input->MouseEvent(
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rdp_inst->input,
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PTR_FLAGS_WHEEL | PTR_FLAGS_WHEEL_NEGATIVE | 0x88,
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x, y);
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}
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rdp_client->mouse_button_mask = mask;
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}
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pthread_mutex_unlock(&(rdp_client->rdp_lock));
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return 0;
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}
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int guac_rdp_user_key_handler(guac_user* user, int keysym, int pressed) {
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guac_client* client = user->client;
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guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
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/* Update keysym state */
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if (GUAC_RDP_KEYSYM_STORABLE(keysym))
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GUAC_RDP_KEYSYM_LOOKUP(rdp_client->keysym_state, keysym) = pressed;
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return guac_rdp_send_keysym(client, keysym, pressed);
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}
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int guac_rdp_user_size_handler(guac_user* user, int width, int height) {
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#ifdef HAVE_FREERDP_DISPLAY_UPDATE_SUPPORT
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guac_client* client = user->client;
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guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
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freerdp* rdp_inst = rdp_client->rdp_inst;
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/* Skip if not yet connected */
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if (rdp_inst == NULL)
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return 0;
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/* Convert client pixels to remote pixels */
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width = width * rdp_client->settings->resolution
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/ user->info.optimal_resolution;
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height = height * rdp_client->settings->resolution
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/ user->info.optimal_resolution;
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/* Send display update */
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pthread_mutex_lock(&(rdp_client->rdp_lock));
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guac_rdp_disp_set_size(rdp_client->disp, rdp_inst->context, width, height);
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pthread_mutex_unlock(&(rdp_client->rdp_lock));
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#endif
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return 0;
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}
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