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 "sysemu/sysemu.h"
  26 #include "monitor/monitor.h"
  27 #include "ui/console.h"
  28 #include "qapi/error.h"
  29 #include "qmp-commands.h"
  30 #include "qapi-types.h"
  31 #include "ui/keymaps.h"
  32 #include "ui/input.h"
  33
  34 struct QEMUPutMouseEntry {
  35     QEMUPutMouseEvent *qemu_put_mouse_event;
  36     void *qemu_put_mouse_event_opaque;
  37     int qemu_put_mouse_event_absolute;
  38
  39     /* new input core */
  40     QemuInputHandler h;
  41     QemuInputHandlerState *s;
  42     int axis[INPUT_AXIS_MAX];
  43     int buttons;
  44 };
  45
  46 struct QEMUPutKbdEntry {
  47     QEMUPutKBDEvent *put_kbd;
  48     void *opaque;
  49     QemuInputHandlerState *s;
  50 };
  51
  52 struct QEMUPutLEDEntry {
  53     QEMUPutLEDEvent *put_led;
  54     void *opaque;
  55     QTAILQ_ENTRY(QEMUPutLEDEntry) next;
  56 };
  57
  58 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
  59     QTAILQ_HEAD_INITIALIZER(led_handlers);
  60 static QTAILQ_HEAD(, QEMUPutMouseEntry) mouse_handlers =
  61     QTAILQ_HEAD_INITIALIZER(mouse_handlers);
  62
  63 int index_from_key(const char *key)
  64 {
  65     int i;
  66
  67     for (i = 0; QKeyCode_lookup[i] != NULL; i++) {
  68         if (!strcmp(key, QKeyCode_lookup[i])) {
  69             break;
  70         }
  71     }
  72
  73     /* Return Q_KEY_CODE_MAX if the key is invalid */
  74     return i;
  75 }
  76
  77 static KeyValue *copy_key_value(KeyValue *src)
  78 {
  79     KeyValue *dst = g_new(KeyValue, 1);
  80     memcpy(dst, src, sizeof(*src));
  81     return dst;
  82 }
  83
  84 void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
  85                   Error **errp)
  86 {
  87     KeyValueList *p;
  88     KeyValue **up = NULL;
  89     int count = 0;
  90
  91     if (!has_hold_time) {
  92         hold_time = 0; /* use default */
  93     }
  94
  95     for (p = keys; p != NULL; p = p->next) {
  96         qemu_input_event_send_key(NULL, copy_key_value(p->value), true);
  97         qemu_input_event_send_key_delay(hold_time);
  98         up = g_realloc(up, sizeof(*up) * (count+1));
  99         up[count] = copy_key_value(p->value);
 100         count++;
 101     }
 102     while (count) {
 103         count--;
 104         qemu_input_event_send_key(NULL, up[count], false);
 105         qemu_input_event_send_key_delay(hold_time);
 106     }
 107     g_free(up);
 108 }
 109
 110 static void legacy_kbd_event(DeviceState *dev, QemuConsole *src,
 111                              InputEvent *evt)
 112 {
 113     QEMUPutKbdEntry *entry = (QEMUPutKbdEntry *)dev;
 114     int scancodes[3], i, count;
 115
 116     if (!entry || !entry->put_kbd) {
 117         return;
 118     }
 119     count = qemu_input_key_value_to_scancode(evt->key->key,
 120                                              evt->key->down,
 121                                              scancodes);
 122     for (i = 0; i < count; i++) {
 123         entry->put_kbd(entry->opaque, scancodes[i]);
 124     }
 125 }
 126
 127 static QemuInputHandler legacy_kbd_handler = {
 128     .name  = "legacy-kbd",
 129     .mask  = INPUT_EVENT_MASK_KEY,
 130     .event = legacy_kbd_event,
 131 };
 132
 133 QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
 134 {
 135     QEMUPutKbdEntry *entry;
 136
 137     entry = g_new0(QEMUPutKbdEntry, 1);
 138     entry->put_kbd = func;
 139     entry->opaque = opaque;
 140     entry->s = qemu_input_handler_register((DeviceState *)entry,
 141                                            &legacy_kbd_handler);
 142     qemu_input_handler_activate(entry->s);
 143     return entry;
 144 }
 145
 146 void qemu_remove_kbd_event_handler(QEMUPutKbdEntry *entry)
 147 {
 148     qemu_input_handler_unregister(entry->s);
 149     g_free(entry);
 150 }
 151
 152 static void legacy_mouse_event(DeviceState *dev, QemuConsole *src,
 153                                InputEvent *evt)
 154 {
 155     static const int bmap[INPUT_BUTTON_MAX] = {
 156         [INPUT_BUTTON_LEFT]   = MOUSE_EVENT_LBUTTON,
 157         [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
 158         [INPUT_BUTTON_RIGHT]  = MOUSE_EVENT_RBUTTON,
 159     };
 160     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 161
 162     switch (evt->kind) {
 163     case INPUT_EVENT_KIND_BTN:
 164         if (evt->btn->down) {
 165             s->buttons |= bmap[evt->btn->button];
 166         } else {
 167             s->buttons &= ~bmap[evt->btn->button];
 168         }
 169         if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_UP) {
 170             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 171                                     s->axis[INPUT_AXIS_X],
 172                                     s->axis[INPUT_AXIS_Y],
 173                                     -1,
 174                                     s->buttons);
 175         }
 176         if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_DOWN) {
 177             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 178                                     s->axis[INPUT_AXIS_X],
 179                                     s->axis[INPUT_AXIS_Y],
 180                                     1,
 181                                     s->buttons);
 182         }
 183         break;
 184     case INPUT_EVENT_KIND_ABS:
 185         s->axis[evt->abs->axis] = evt->abs->value;
 186         break;
 187     case INPUT_EVENT_KIND_REL:
 188         s->axis[evt->rel->axis] += evt->rel->value;
 189         break;
 190     default:
 191         break;
 192     }
 193 }
 194
 195 static void legacy_mouse_sync(DeviceState *dev)
 196 {
 197     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 198
 199     s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 200                             s->axis[INPUT_AXIS_X],
 201                             s->axis[INPUT_AXIS_Y],
 202                             0,
 203                             s->buttons);
 204
 205     if (!s->qemu_put_mouse_event_absolute) {
 206         s->axis[INPUT_AXIS_X] = 0;
 207         s->axis[INPUT_AXIS_Y] = 0;
 208     }
 209 }
 210
 211 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
 212                                                 void *opaque, int absolute,
 213                                                 const char *name)
 214 {
 215     QEMUPutMouseEntry *s;
 216
 217     s = g_malloc0(sizeof(QEMUPutMouseEntry));
 218
 219     s->qemu_put_mouse_event = func;
 220     s->qemu_put_mouse_event_opaque = opaque;
 221     s->qemu_put_mouse_event_absolute = absolute;
 222
 223     s->h.name = name;
 224     s->h.mask = INPUT_EVENT_MASK_BTN |
 225         (absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
 226     s->h.event = legacy_mouse_event;
 227     s->h.sync = legacy_mouse_sync;
 228     s->s = qemu_input_handler_register((DeviceState *)s,
 229                                        &s->h);
 230
 231     return s;
 232 }
 233
 234 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
 235 {
 236     qemu_input_handler_activate(entry->s);
 237 }
 238
 239 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 240 {
 241     qemu_input_handler_unregister(entry->s);
 242
 243     g_free(entry);
 244 }
 245
 246 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
 247                                             void *opaque)
 248 {
 249     QEMUPutLEDEntry *s;
 250
 251     s = g_malloc0(sizeof(QEMUPutLEDEntry));
 252
 253     s->put_led = func;
 254     s->opaque = opaque;
 255     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
 256     return s;
 257 }
 258
 259 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
 260 {
 261     if (entry == NULL)
 262         return;
 263     QTAILQ_REMOVE(&led_handlers, entry, next);
 264     g_free(entry);
 265 }
 266
 267 void kbd_put_ledstate(int ledstate)
 268 {
 269     QEMUPutLEDEntry *cursor;
 270
 271     QTAILQ_FOREACH(cursor, &led_handlers, next) {
 272         cursor->put_led(cursor->opaque, ledstate);
 273     }
 274 }