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 "qapi/qapi-commands-ui.h"
  27 #include "ui/console.h"
  28 #include "keymaps.h"
  29 #include "ui/input.h"
  30
  31 struct QEMUPutMouseEntry {
  32     QEMUPutMouseEvent *qemu_put_mouse_event;
  33     void *qemu_put_mouse_event_opaque;
  34     int qemu_put_mouse_event_absolute;
  35
  36     /* new input core */
  37     QemuInputHandler h;
  38     QemuInputHandlerState *s;
  39     int axis[INPUT_AXIS__MAX];
  40     int buttons;
  41 };
  42
  43 struct QEMUPutKbdEntry {
  44     QEMUPutKBDEvent *put_kbd;
  45     void *opaque;
  46     QemuInputHandlerState *s;
  47 };
  48
  49 struct QEMUPutLEDEntry {
  50     QEMUPutLEDEvent *put_led;
  51     void *opaque;
  52     QTAILQ_ENTRY(QEMUPutLEDEntry) next;
  53 };
  54
  55 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
  56     QTAILQ_HEAD_INITIALIZER(led_handlers);
  57
  58 int index_from_key(const char *key, size_t key_length)
  59 {
  60     int i;
  61
  62     for (i = 0; i < Q_KEY_CODE__MAX; i++) {
  63         if (!strncmp(key, QKeyCode_str(i), key_length) &&
  64             !QKeyCode_str(i)[key_length]) {
  65             break;
  66         }
  67     }
  68
  69     /* Return Q_KEY_CODE__MAX if the key is invalid */
  70     return i;
  71 }
  72
  73 static KeyValue *copy_key_value(KeyValue *src)
  74 {
  75     KeyValue *dst = g_new(KeyValue, 1);
  76     memcpy(dst, src, sizeof(*src));
  77     if (dst->type == KEY_VALUE_KIND_NUMBER) {
  78         QKeyCode code = qemu_input_key_number_to_qcode(dst->u.number.data);
  79         dst->type = KEY_VALUE_KIND_QCODE;
  80         dst->u.qcode.data = code;
  81     }
  82     return dst;
  83 }
  84
  85 void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
  86                   Error **errp)
  87 {
  88     KeyValueList *p;
  89     KeyValue **up = NULL;
  90     int count = 0;
  91
  92     if (!has_hold_time) {
  93         hold_time = 0; /* use default */
  94     }
  95
  96     for (p = keys; p != NULL; p = p->next) {
  97         qemu_input_event_send_key(NULL, copy_key_value(p->value), true);
  98         qemu_input_event_send_key_delay(hold_time);
  99         up = g_realloc(up, sizeof(*up) * (count+1));
 100         up[count] = copy_key_value(p->value);
 101         count++;
 102     }
 103     while (count) {
 104         count--;
 105         qemu_input_event_send_key(NULL, up[count], false);
 106         qemu_input_event_send_key_delay(hold_time);
 107     }
 108     g_free(up);
 109 }
 110
 111 static void legacy_kbd_event(DeviceState *dev, QemuConsole *src,
 112                              InputEvent *evt)
 113 {
 114     QEMUPutKbdEntry *entry = (QEMUPutKbdEntry *)dev;
 115     int scancodes[3], i, count;
 116     InputKeyEvent *key = evt->u.key.data;
 117
 118     if (!entry || !entry->put_kbd) {
 119         return;
 120     }
 121     count = qemu_input_key_value_to_scancode(key->key,
 122                                              key->down,
 123                                              scancodes);
 124     for (i = 0; i < count; i++) {
 125         entry->put_kbd(entry->opaque, scancodes[i]);
 126     }
 127 }
 128
 129 static QemuInputHandler legacy_kbd_handler = {
 130     .name  = "legacy-kbd",
 131     .mask  = INPUT_EVENT_MASK_KEY,
 132     .event = legacy_kbd_event,
 133 };
 134
 135 QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
 136 {
 137     QEMUPutKbdEntry *entry;
 138
 139     entry = g_new0(QEMUPutKbdEntry, 1);
 140     entry->put_kbd = func;
 141     entry->opaque = opaque;
 142     entry->s = qemu_input_handler_register((DeviceState *)entry,
 143                                            &legacy_kbd_handler);
 144     qemu_input_handler_activate(entry->s);
 145     return entry;
 146 }
 147
 148 static void legacy_mouse_event(DeviceState *dev, QemuConsole *src,
 149                                InputEvent *evt)
 150 {
 151     static const int bmap[INPUT_BUTTON__MAX] = {
 152         [INPUT_BUTTON_LEFT]   = MOUSE_EVENT_LBUTTON,
 153         [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
 154         [INPUT_BUTTON_RIGHT]  = MOUSE_EVENT_RBUTTON,
 155     };
 156     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 157     InputBtnEvent *btn;
 158     InputMoveEvent *move;
 159
 160     switch (evt->type) {
 161     case INPUT_EVENT_KIND_BTN:
 162         btn = evt->u.btn.data;
 163         if (btn->down) {
 164             s->buttons |= bmap[btn->button];
 165         } else {
 166             s->buttons &= ~bmap[btn->button];
 167         }
 168         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_UP) {
 169             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 170                                     s->axis[INPUT_AXIS_X],
 171                                     s->axis[INPUT_AXIS_Y],
 172                                     -1,
 173                                     s->buttons);
 174         }
 175         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_DOWN) {
 176             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 177                                     s->axis[INPUT_AXIS_X],
 178                                     s->axis[INPUT_AXIS_Y],
 179                                     1,
 180                                     s->buttons);
 181         }
 182         break;
 183     case INPUT_EVENT_KIND_ABS:
 184         move = evt->u.abs.data;
 185         s->axis[move->axis] = move->value;
 186         break;
 187     case INPUT_EVENT_KIND_REL:
 188         move = evt->u.rel.data;
 189         s->axis[move->axis] += move->value;
 190         break;
 191     default:
 192         break;
 193     }
 194 }
 195
 196 static void legacy_mouse_sync(DeviceState *dev)
 197 {
 198     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 199
 200     s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 201                             s->axis[INPUT_AXIS_X],
 202                             s->axis[INPUT_AXIS_Y],
 203                             0,
 204                             s->buttons);
 205
 206     if (!s->qemu_put_mouse_event_absolute) {
 207         s->axis[INPUT_AXIS_X] = 0;
 208         s->axis[INPUT_AXIS_Y] = 0;
 209     }
 210 }
 211
 212 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
 213                                                 void *opaque, int absolute,
 214                                                 const char *name)
 215 {
 216     QEMUPutMouseEntry *s;
 217
 218     s = g_new0(QEMUPutMouseEntry, 1);
 219
 220     s->qemu_put_mouse_event = func;
 221     s->qemu_put_mouse_event_opaque = opaque;
 222     s->qemu_put_mouse_event_absolute = absolute;
 223
 224     s->h.name = name;
 225     s->h.mask = INPUT_EVENT_MASK_BTN |
 226         (absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
 227     s->h.event = legacy_mouse_event;
 228     s->h.sync = legacy_mouse_sync;
 229     s->s = qemu_input_handler_register((DeviceState *)s,
 230                                        &s->h);
 231
 232     return s;
 233 }
 234
 235 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
 236 {
 237     qemu_input_handler_activate(entry->s);
 238 }
 239
 240 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 241 {
 242     qemu_input_handler_unregister(entry->s);
 243
 244     g_free(entry);
 245 }
 246
 247 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
 248                                             void *opaque)
 249 {
 250     QEMUPutLEDEntry *s;
 251
 252     s = g_new0(QEMUPutLEDEntry, 1);
 253
 254     s->put_led = func;
 255     s->opaque = opaque;
 256     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
 257     return s;
 258 }
 259
 260 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
 261 {
 262     if (entry == NULL)
 263         return;
 264     QTAILQ_REMOVE(&led_handlers, entry, next);
 265     g_free(entry);
 266 }
 267
 268 void kbd_put_ledstate(int ledstate)
 269 {
 270     QEMUPutLEDEntry *cursor;
 271
 272     QTAILQ_FOREACH(cursor, &led_handlers, next) {
 273         cursor->put_led(cursor->opaque, ledstate);
 274     }
 275 }