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 "ui/keymaps.h"
  30 #include "ui/input.h"
  31
  32 struct QEMUPutMouseEntry {
  33     QEMUPutMouseEvent *qemu_put_mouse_event;
  34     void *qemu_put_mouse_event_opaque;
  35     int qemu_put_mouse_event_absolute;
  36
  37     /* new input core */
  38     QemuInputHandler h;
  39     QemuInputHandlerState *s;
  40     int axis[INPUT_AXIS__MAX];
  41     int buttons;
  42 };
  43
  44 struct QEMUPutKbdEntry {
  45     QEMUPutKBDEvent *put_kbd;
  46     void *opaque;
  47     QemuInputHandlerState *s;
  48 };
  49
  50 struct QEMUPutLEDEntry {
  51     QEMUPutLEDEvent *put_led;
  52     void *opaque;
  53     QTAILQ_ENTRY(QEMUPutLEDEntry) next;
  54 };
  55
  56 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
  57     QTAILQ_HEAD_INITIALIZER(led_handlers);
  58
  59 int index_from_key(const char *key, size_t key_length)
  60 {
  61     int i;
  62
  63     for (i = 0; i < Q_KEY_CODE__MAX; i++) {
  64         if (!strncmp(key, QKeyCode_str(i), key_length) &&
  65             !QKeyCode_str(i)[key_length]) {
  66             break;
  67         }
  68     }
  69
  70     /* Return Q_KEY_CODE__MAX if the key is invalid */
  71     return i;
  72 }
  73
  74 static KeyValue *copy_key_value(KeyValue *src)
  75 {
  76     KeyValue *dst = g_new(KeyValue, 1);
  77     memcpy(dst, src, sizeof(*src));
  78     if (dst->type == KEY_VALUE_KIND_NUMBER) {
  79         QKeyCode code = qemu_input_key_number_to_qcode(dst->u.number.data);
  80         dst->type = KEY_VALUE_KIND_QCODE;
  81         dst->u.qcode.data = code;
  82     }
  83     return dst;
  84 }
  85
  86 void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
  87                   Error **errp)
  88 {
  89     KeyValueList *p;
  90     KeyValue **up = NULL;
  91     int count = 0;
  92
  93     if (!has_hold_time) {
  94         hold_time = 0; /* use default */
  95     }
  96
  97     for (p = keys; p != NULL; p = p->next) {
  98         qemu_input_event_send_key(NULL, copy_key_value(p->value), true);
  99         qemu_input_event_send_key_delay(hold_time);
 100         up = g_realloc(up, sizeof(*up) * (count+1));
 101         up[count] = copy_key_value(p->value);
 102         count++;
 103     }
 104     while (count) {
 105         count--;
 106         qemu_input_event_send_key(NULL, up[count], false);
 107         qemu_input_event_send_key_delay(hold_time);
 108     }
 109     g_free(up);
 110 }
 111
 112 static void legacy_kbd_event(DeviceState *dev, QemuConsole *src,
 113                              InputEvent *evt)
 114 {
 115     QEMUPutKbdEntry *entry = (QEMUPutKbdEntry *)dev;
 116     int scancodes[3], i, count;
 117     InputKeyEvent *key = evt->u.key.data;
 118
 119     if (!entry || !entry->put_kbd) {
 120         return;
 121     }
 122     count = qemu_input_key_value_to_scancode(key->key,
 123                                              key->down,
 124                                              scancodes);
 125     for (i = 0; i < count; i++) {
 126         entry->put_kbd(entry->opaque, scancodes[i]);
 127     }
 128 }
 129
 130 static QemuInputHandler legacy_kbd_handler = {
 131     .name  = "legacy-kbd",
 132     .mask  = INPUT_EVENT_MASK_KEY,
 133     .event = legacy_kbd_event,
 134 };
 135
 136 QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
 137 {
 138     QEMUPutKbdEntry *entry;
 139
 140     entry = g_new0(QEMUPutKbdEntry, 1);
 141     entry->put_kbd = func;
 142     entry->opaque = opaque;
 143     entry->s = qemu_input_handler_register((DeviceState *)entry,
 144                                            &legacy_kbd_handler);
 145     qemu_input_handler_activate(entry->s);
 146     return entry;
 147 }
 148
 149 static void legacy_mouse_event(DeviceState *dev, QemuConsole *src,
 150                                InputEvent *evt)
 151 {
 152     static const int bmap[INPUT_BUTTON__MAX] = {
 153         [INPUT_BUTTON_LEFT]   = MOUSE_EVENT_LBUTTON,
 154         [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
 155         [INPUT_BUTTON_RIGHT]  = MOUSE_EVENT_RBUTTON,
 156     };
 157     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 158     InputBtnEvent *btn;
 159     InputMoveEvent *move;
 160
 161     switch (evt->type) {
 162     case INPUT_EVENT_KIND_BTN:
 163         btn = evt->u.btn.data;
 164         if (btn->down) {
 165             s->buttons |= bmap[btn->button];
 166         } else {
 167             s->buttons &= ~bmap[btn->button];
 168         }
 169         if (btn->down && 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 (btn->down && 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         move = evt->u.abs.data;
 186         s->axis[move->axis] = move->value;
 187         break;
 188     case INPUT_EVENT_KIND_REL:
 189         move = evt->u.rel.data;
 190         s->axis[move->axis] += move->value;
 191         break;
 192     default:
 193         break;
 194     }
 195 }
 196
 197 static void legacy_mouse_sync(DeviceState *dev)
 198 {
 199     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 200
 201     s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 202                             s->axis[INPUT_AXIS_X],
 203                             s->axis[INPUT_AXIS_Y],
 204                             0,
 205                             s->buttons);
 206
 207     if (!s->qemu_put_mouse_event_absolute) {
 208         s->axis[INPUT_AXIS_X] = 0;
 209         s->axis[INPUT_AXIS_Y] = 0;
 210     }
 211 }
 212
 213 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
 214                                                 void *opaque, int absolute,
 215                                                 const char *name)
 216 {
 217     QEMUPutMouseEntry *s;
 218
 219     s = g_new0(QEMUPutMouseEntry, 1);
 220
 221     s->qemu_put_mouse_event = func;
 222     s->qemu_put_mouse_event_opaque = opaque;
 223     s->qemu_put_mouse_event_absolute = absolute;
 224
 225     s->h.name = name;
 226     s->h.mask = INPUT_EVENT_MASK_BTN |
 227         (absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
 228     s->h.event = legacy_mouse_event;
 229     s->h.sync = legacy_mouse_sync;
 230     s->s = qemu_input_handler_register((DeviceState *)s,
 231                                        &s->h);
 232
 233     return s;
 234 }
 235
 236 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
 237 {
 238     qemu_input_handler_activate(entry->s);
 239 }
 240
 241 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 242 {
 243     qemu_input_handler_unregister(entry->s);
 244
 245     g_free(entry);
 246 }
 247
 248 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
 249                                             void *opaque)
 250 {
 251     QEMUPutLEDEntry *s;
 252
 253     s = g_new0(QEMUPutLEDEntry, 1);
 254
 255     s->put_led = func;
 256     s->opaque = opaque;
 257     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
 258     return s;
 259 }
 260
 261 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
 262 {
 263     if (entry == NULL)
 264         return;
 265     QTAILQ_REMOVE(&led_handlers, entry, next);
 266     g_free(entry);
 267 }
 268
 269 void kbd_put_ledstate(int ledstate)
 270 {
 271     QEMUPutLEDEntry *cursor;
 272
 273     QTAILQ_FOREACH(cursor, &led_handlers, next) {
 274         cursor->put_led(cursor->opaque, ledstate);
 275     }
 276 }