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; QKeyCode_lookup[i] != NULL; i++) {
  65         if (!strncmp(key, QKeyCode_lookup[i], key_length) &&
  66             !QKeyCode_lookup[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     return dst;
  80 }
  81
  82 void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
  83                   Error **errp)
  84 {
  85     KeyValueList *p;
  86     KeyValue **up = NULL;
  87     int count = 0;
  88
  89     if (!has_hold_time) {
  90         hold_time = 0; /* use default */
  91     }
  92
  93     for (p = keys; p != NULL; p = p->next) {
  94         qemu_input_event_send_key(NULL, copy_key_value(p->value), true);
  95         qemu_input_event_send_key_delay(hold_time);
  96         up = g_realloc(up, sizeof(*up) * (count+1));
  97         up[count] = copy_key_value(p->value);
  98         count++;
  99     }
 100     while (count) {
 101         count--;
 102         qemu_input_event_send_key(NULL, up[count], false);
 103         qemu_input_event_send_key_delay(hold_time);
 104     }
 105     g_free(up);
 106 }
 107
 108 static void legacy_kbd_event(DeviceState *dev, QemuConsole *src,
 109                              InputEvent *evt)
 110 {
 111     QEMUPutKbdEntry *entry = (QEMUPutKbdEntry *)dev;
 112     int scancodes[3], i, count;
 113     InputKeyEvent *key = evt->u.key;
 114
 115     if (!entry || !entry->put_kbd) {
 116         return;
 117     }
 118     count = qemu_input_key_value_to_scancode(key->key,
 119                                              key->down,
 120                                              scancodes);
 121     for (i = 0; i < count; i++) {
 122         entry->put_kbd(entry->opaque, scancodes[i]);
 123     }
 124 }
 125
 126 static QemuInputHandler legacy_kbd_handler = {
 127     .name  = "legacy-kbd",
 128     .mask  = INPUT_EVENT_MASK_KEY,
 129     .event = legacy_kbd_event,
 130 };
 131
 132 QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
 133 {
 134     QEMUPutKbdEntry *entry;
 135
 136     entry = g_new0(QEMUPutKbdEntry, 1);
 137     entry->put_kbd = func;
 138     entry->opaque = opaque;
 139     entry->s = qemu_input_handler_register((DeviceState *)entry,
 140                                            &legacy_kbd_handler);
 141     qemu_input_handler_activate(entry->s);
 142     return entry;
 143 }
 144
 145 static void legacy_mouse_event(DeviceState *dev, QemuConsole *src,
 146                                InputEvent *evt)
 147 {
 148     static const int bmap[INPUT_BUTTON__MAX] = {
 149         [INPUT_BUTTON_LEFT]   = MOUSE_EVENT_LBUTTON,
 150         [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
 151         [INPUT_BUTTON_RIGHT]  = MOUSE_EVENT_RBUTTON,
 152     };
 153     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 154     InputBtnEvent *btn;
 155     InputMoveEvent *move;
 156
 157     switch (evt->type) {
 158     case INPUT_EVENT_KIND_BTN:
 159         btn = evt->u.btn;
 160         if (btn->down) {
 161             s->buttons |= bmap[btn->button];
 162         } else {
 163             s->buttons &= ~bmap[btn->button];
 164         }
 165         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_UP) {
 166             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 167                                     s->axis[INPUT_AXIS_X],
 168                                     s->axis[INPUT_AXIS_Y],
 169                                     -1,
 170                                     s->buttons);
 171         }
 172         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_DOWN) {
 173             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 174                                     s->axis[INPUT_AXIS_X],
 175                                     s->axis[INPUT_AXIS_Y],
 176                                     1,
 177                                     s->buttons);
 178         }
 179         break;
 180     case INPUT_EVENT_KIND_ABS:
 181         move = evt->u.abs;
 182         s->axis[move->axis] = move->value;
 183         break;
 184     case INPUT_EVENT_KIND_REL:
 185         move = evt->u.rel;
 186         s->axis[move->axis] += move->value;
 187         break;
 188     default:
 189         break;
 190     }
 191 }
 192
 193 static void legacy_mouse_sync(DeviceState *dev)
 194 {
 195     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 196
 197     s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 198                             s->axis[INPUT_AXIS_X],
 199                             s->axis[INPUT_AXIS_Y],
 200                             0,
 201                             s->buttons);
 202
 203     if (!s->qemu_put_mouse_event_absolute) {
 204         s->axis[INPUT_AXIS_X] = 0;
 205         s->axis[INPUT_AXIS_Y] = 0;
 206     }
 207 }
 208
 209 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
 210                                                 void *opaque, int absolute,
 211                                                 const char *name)
 212 {
 213     QEMUPutMouseEntry *s;
 214
 215     s = g_new0(QEMUPutMouseEntry, 1);
 216
 217     s->qemu_put_mouse_event = func;
 218     s->qemu_put_mouse_event_opaque = opaque;
 219     s->qemu_put_mouse_event_absolute = absolute;
 220
 221     s->h.name = name;
 222     s->h.mask = INPUT_EVENT_MASK_BTN |
 223         (absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
 224     s->h.event = legacy_mouse_event;
 225     s->h.sync = legacy_mouse_sync;
 226     s->s = qemu_input_handler_register((DeviceState *)s,
 227                                        &s->h);
 228
 229     return s;
 230 }
 231
 232 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
 233 {
 234     qemu_input_handler_activate(entry->s);
 235 }
 236
 237 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 238 {
 239     qemu_input_handler_unregister(entry->s);
 240
 241     g_free(entry);
 242 }
 243
 244 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
 245                                             void *opaque)
 246 {
 247     QEMUPutLEDEntry *s;
 248
 249     s = g_new0(QEMUPutLEDEntry, 1);
 250
 251     s->put_led = func;
 252     s->opaque = opaque;
 253     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
 254     return s;
 255 }
 256
 257 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
 258 {
 259     if (entry == NULL)
 260         return;
 261     QTAILQ_REMOVE(&led_handlers, entry, next);
 262     g_free(entry);
 263 }
 264
 265 void kbd_put_ledstate(int ledstate)
 266 {
 267     QEMUPutLEDEntry *cursor;
 268
 269     QTAILQ_FOREACH(cursor, &led_handlers, next) {
 270         cursor->put_led(cursor->opaque, ledstate);
 271     }
 272 }