qemu/ui/input-legacy.c
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   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 "sysemu/sysemu.h"
  28#include "ui/console.h"
  29#include "keymaps.h"
  30#include "ui/input.h"
  31
  32struct 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
  44struct QEMUPutKbdEntry {
  45    QEMUPutKBDEvent *put_kbd;
  46    void *opaque;
  47    QemuInputHandlerState *s;
  48};
  49
  50struct QEMUPutLEDEntry {
  51    QEMUPutLEDEvent *put_led;
  52    void *opaque;
  53    QTAILQ_ENTRY(QEMUPutLEDEntry) next;
  54};
  55
  56static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
  57    QTAILQ_HEAD_INITIALIZER(led_handlers);
  58
  59int 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
  74static 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
  86void 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
 112static 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
 130static QemuInputHandler legacy_kbd_handler = {
 131    .name  = "legacy-kbd",
 132    .mask  = INPUT_EVENT_MASK_KEY,
 133    .event = legacy_kbd_event,
 134};
 135
 136QEMUPutKbdEntry *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
 149static 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
 197static 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
 213QEMUPutMouseEntry *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
 236void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
 237{
 238    qemu_input_handler_activate(entry->s);
 239}
 240
 241void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 242{
 243    qemu_input_handler_unregister(entry->s);
 244
 245    g_free(entry);
 246}
 247
 248QEMUPutLEDEntry *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
 261void 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
 269void 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}
 277