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 "ui/console.h"
  28#include "keymaps.h"
  29#include "ui/input.h"
  30
  31struct 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
  43struct QEMUPutKbdEntry {
  44    QEMUPutKBDEvent *put_kbd;
  45    void *opaque;
  46    QemuInputHandlerState *s;
  47};
  48
  49struct QEMUPutLEDEntry {
  50    QEMUPutLEDEvent *put_led;
  51    void *opaque;
  52    QTAILQ_ENTRY(QEMUPutLEDEntry) next;
  53};
  54
  55static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
  56    QTAILQ_HEAD_INITIALIZER(led_handlers);
  57
  58int 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
  73static 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
  85void 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
 111static 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
 129static QemuInputHandler legacy_kbd_handler = {
 130    .name  = "legacy-kbd",
 131    .mask  = INPUT_EVENT_MASK_KEY,
 132    .event = legacy_kbd_event,
 133};
 134
 135QEMUPutKbdEntry *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
 148static 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
 196static 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
 212QEMUPutMouseEntry *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
 235void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
 236{
 237    qemu_input_handler_activate(entry->s);
 238}
 239
 240void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 241{
 242    qemu_input_handler_unregister(entry->s);
 243
 244    g_free(entry);
 245}
 246
 247QEMUPutLEDEntry *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
 260void 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
 268void 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}
 276