ui/input-legacy.c

   1 /*
   2  * QEMU System Emulator
   3  *
   4  * Copyright (c) 2003-2008 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #include "qemu/osdep.h"
  26 #include "sysemu/sysemu.h"
  27 #include "ui/console.h"
  28 #include "qmp-commands.h"
  29 #include "qapi-types.h"
  30 #include "ui/keymaps.h"
  31 #include "ui/input.h"
  32
  33 struct QEMUPutMouseEntry {
  34     QEMUPutMouseEvent *qemu_put_mouse_event;
  35     void *qemu_put_mouse_event_opaque;
  36     int qemu_put_mouse_event_absolute;
  37
  38     /* new input core */
  39     QemuInputHandler h;
  40     QemuInputHandlerState *s;
  41     int axis[INPUT_AXIS__MAX];
  42     int buttons;
  43 };
  44
  45 struct QEMUPutKbdEntry {
  46     QEMUPutKBDEvent *put_kbd;
  47     void *opaque;
  48     QemuInputHandlerState *s;
  49 };
  50
  51 struct QEMUPutLEDEntry {
  52     QEMUPutLEDEvent *put_led;
  53     void *opaque;
  54     QTAILQ_ENTRY(QEMUPutLEDEntry) next;
  55 };
  56
  57 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
  58     QTAILQ_HEAD_INITIALIZER(led_handlers);
  59
  60 int index_from_key(const char *key, size_t key_length)
  61 {
  62     int i;
  63
  64     for (i = 0; i < Q_KEY_CODE__MAX; i++) {
  65         if (!strncmp(key, QKeyCode_str(i), key_length) &&
  66             !QKeyCode_str(i)[key_length]) {
  67             break;
  68         }
  69     }
  70
  71     /* Return Q_KEY_CODE__MAX if the key is invalid */
  72     return i;
  73 }
  74
  75 static KeyValue *copy_key_value(KeyValue *src)
  76 {
  77     KeyValue *dst = g_new(KeyValue, 1);
  78     memcpy(dst, src, sizeof(*src));
  79     if (dst->type == KEY_VALUE_KIND_NUMBER) {
  80         QKeyCode code = qemu_input_key_number_to_qcode(dst->u.number.data);
  81         dst->type = KEY_VALUE_KIND_QCODE;
  82         dst->u.qcode.data = code;
  83     }
  84     return dst;
  85 }
  86
  87 void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
  88                   Error **errp)
  89 {
  90     KeyValueList *p;
  91     KeyValue **up = NULL;
  92     int count = 0;
  93
  94     if (!has_hold_time) {
  95         hold_time = 0; /* use default */
  96     }
  97
  98     for (p = keys; p != NULL; p = p->next) {
  99         qemu_input_event_send_key(NULL, copy_key_value(p->value), true);
 100         qemu_input_event_send_key_delay(hold_time);
 101         up = g_realloc(up, sizeof(*up) * (count+1));
 102         up[count] = copy_key_value(p->value);
 103         count++;
 104     }
 105     while (count) {
 106         count--;
 107         qemu_input_event_send_key(NULL, up[count], false);
 108         qemu_input_event_send_key_delay(hold_time);
 109     }
 110     g_free(up);
 111 }
 112
 113 static void legacy_kbd_event(DeviceState *dev, QemuConsole *src,
 114                              InputEvent *evt)
 115 {
 116     QEMUPutKbdEntry *entry = (QEMUPutKbdEntry *)dev;
 117     int scancodes[3], i, count;
 118     InputKeyEvent *key = evt->u.key.data;
 119
 120     if (!entry || !entry->put_kbd) {
 121         return;
 122     }
 123     count = qemu_input_key_value_to_scancode(key->key,
 124                                              key->down,
 125                                              scancodes);
 126     for (i = 0; i < count; i++) {
 127         entry->put_kbd(entry->opaque, scancodes[i]);
 128     }
 129 }
 130
 131 static QemuInputHandler legacy_kbd_handler = {
 132     .name  = "legacy-kbd",
 133     .mask  = INPUT_EVENT_MASK_KEY,
 134     .event = legacy_kbd_event,
 135 };
 136
 137 QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
 138 {
 139     QEMUPutKbdEntry *entry;
 140
 141     entry = g_new0(QEMUPutKbdEntry, 1);
 142     entry->put_kbd = func;
 143     entry->opaque = opaque;
 144     entry->s = qemu_input_handler_register((DeviceState *)entry,
 145                                            &legacy_kbd_handler);
 146     qemu_input_handler_activate(entry->s);
 147     return entry;
 148 }
 149
 150 static void legacy_mouse_event(DeviceState *dev, QemuConsole *src,
 151                                InputEvent *evt)
 152 {
 153     static const int bmap[INPUT_BUTTON__MAX] = {
 154         [INPUT_BUTTON_LEFT]   = MOUSE_EVENT_LBUTTON,
 155         [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
 156         [INPUT_BUTTON_RIGHT]  = MOUSE_EVENT_RBUTTON,
 157     };
 158     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 159     InputBtnEvent *btn;
 160     InputMoveEvent *move;
 161
 162     switch (evt->type) {
 163     case INPUT_EVENT_KIND_BTN:
 164         btn = evt->u.btn.data;
 165         if (btn->down) {
 166             s->buttons |= bmap[btn->button];
 167         } else {
 168             s->buttons &= ~bmap[btn->button];
 169         }
 170         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_UP) {
 171             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 172                                     s->axis[INPUT_AXIS_X],
 173                                     s->axis[INPUT_AXIS_Y],
 174                                     -1,
 175                                     s->buttons);
 176         }
 177         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_DOWN) {
 178             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 179                                     s->axis[INPUT_AXIS_X],
 180                                     s->axis[INPUT_AXIS_Y],
 181                                     1,
 182                                     s->buttons);
 183         }
 184         break;
 185     case INPUT_EVENT_KIND_ABS:
 186         move = evt->u.abs.data;
 187         s->axis[move->axis] = move->value;
 188         break;
 189     case INPUT_EVENT_KIND_REL:
 190         move = evt->u.rel.data;
 191         s->axis[move->axis] += move->value;
 192         break;
 193     default:
 194         break;
 195     }
 196 }
 197
 198 static void legacy_mouse_sync(DeviceState *dev)
 199 {
 200     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 201
 202     s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 203                             s->axis[INPUT_AXIS_X],
 204                             s->axis[INPUT_AXIS_Y],
 205                             0,
 206                             s->buttons);
 207
 208     if (!s->qemu_put_mouse_event_absolute) {
 209         s->axis[INPUT_AXIS_X] = 0;
 210         s->axis[INPUT_AXIS_Y] = 0;
 211     }
 212 }
 213
 214 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
 215                                                 void *opaque, int absolute,
 216                                                 const char *name)
 217 {
 218     QEMUPutMouseEntry *s;
 219
 220     s = g_new0(QEMUPutMouseEntry, 1);
 221
 222     s->qemu_put_mouse_event = func;
 223     s->qemu_put_mouse_event_opaque = opaque;
 224     s->qemu_put_mouse_event_absolute = absolute;
 225
 226     s->h.name = name;
 227     s->h.mask = INPUT_EVENT_MASK_BTN |
 228         (absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
 229     s->h.event = legacy_mouse_event;
 230     s->h.sync = legacy_mouse_sync;
 231     s->s = qemu_input_handler_register((DeviceState *)s,
 232                                        &s->h);
 233
 234     return s;
 235 }
 236
 237 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
 238 {
 239     qemu_input_handler_activate(entry->s);
 240 }
 241
 242 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 243 {
 244     qemu_input_handler_unregister(entry->s);
 245
 246     g_free(entry);
 247 }
 248
 249 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
 250                                             void *opaque)
 251 {
 252     QEMUPutLEDEntry *s;
 253
 254     s = g_new0(QEMUPutLEDEntry, 1);
 255
 256     s->put_led = func;
 257     s->opaque = opaque;
 258     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
 259     return s;
 260 }
 261
 262 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
 263 {
 264     if (entry == NULL)
 265         return;
 266     QTAILQ_REMOVE(&led_handlers, entry, next);
 267     g_free(entry);
 268 }
 269
 270 void kbd_put_ledstate(int ledstate)
 271 {
 272     QEMUPutLEDEntry *cursor;
 273
 274     QTAILQ_FOREACH(cursor, &led_handlers, next) {
 275         cursor->put_led(cursor->opaque, ledstate);
 276     }
 277 }