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