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 "monitor/monitor.h"
  27 #include "ui/console.h"
  28 #include "qapi/error.h"
  29 #include "qmp-commands.h"
  30 #include "qapi-types.h"
  31 #include "ui/keymaps.h"
  32 #include "ui/input.h"
  33
  34 struct QEMUPutMouseEntry {
  35     QEMUPutMouseEvent *qemu_put_mouse_event;
  36     void *qemu_put_mouse_event_opaque;
  37     int qemu_put_mouse_event_absolute;
  38
  39     /* new input core */
  40     QemuInputHandler h;
  41     QemuInputHandlerState *s;
  42     int axis[INPUT_AXIS_MAX];
  43     int buttons;
  44 };
  45
  46 struct QEMUPutKbdEntry {
  47     QEMUPutKBDEvent *put_kbd;
  48     void *opaque;
  49     QemuInputHandlerState *s;
  50 };
  51
  52 struct QEMUPutLEDEntry {
  53     QEMUPutLEDEvent *put_led;
  54     void *opaque;
  55     QTAILQ_ENTRY(QEMUPutLEDEntry) next;
  56 };
  57
  58 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
  59     QTAILQ_HEAD_INITIALIZER(led_handlers);
  60
  61 int index_from_key(const char *key)
  62 {
  63     int i;
  64
  65     for (i = 0; QKeyCode_lookup[i] != NULL; i++) {
  66         if (!strcmp(key, QKeyCode_lookup[i])) {
  67             break;
  68         }
  69     }
  70
  71     /* Return Q_KEY_CODE_MAX if the key is invalid */
  72     return i;
  73 }
  74
  75 static KeyValue *copy_key_value(KeyValue *src)
  76 {
  77     KeyValue *dst = g_new(KeyValue, 1);
  78     memcpy(dst, src, sizeof(*src));
  79     return dst;
  80 }
  81
  82 void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
  83                   Error **errp)
  84 {
  85     KeyValueList *p;
  86     KeyValue **up = NULL;
  87     int count = 0;
  88
  89     if (!has_hold_time) {
  90         hold_time = 0; /* use default */
  91     }
  92
  93     for (p = keys; p != NULL; p = p->next) {
  94         qemu_input_event_send_key(NULL, copy_key_value(p->value), true);
  95         qemu_input_event_send_key_delay(hold_time);
  96         up = g_realloc(up, sizeof(*up) * (count+1));
  97         up[count] = copy_key_value(p->value);
  98         count++;
  99     }
 100     while (count) {
 101         count--;
 102         qemu_input_event_send_key(NULL, up[count], false);
 103         qemu_input_event_send_key_delay(hold_time);
 104     }
 105     g_free(up);
 106 }
 107
 108 static void legacy_kbd_event(DeviceState *dev, QemuConsole *src,
 109                              InputEvent *evt)
 110 {
 111     QEMUPutKbdEntry *entry = (QEMUPutKbdEntry *)dev;
 112     int scancodes[3], i, count;
 113
 114     if (!entry || !entry->put_kbd) {
 115         return;
 116     }
 117     count = qemu_input_key_value_to_scancode(evt->key->key,
 118                                              evt->key->down,
 119                                              scancodes);
 120     for (i = 0; i < count; i++) {
 121         entry->put_kbd(entry->opaque, scancodes[i]);
 122     }
 123 }
 124
 125 static QemuInputHandler legacy_kbd_handler = {
 126     .name  = "legacy-kbd",
 127     .mask  = INPUT_EVENT_MASK_KEY,
 128     .event = legacy_kbd_event,
 129 };
 130
 131 QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
 132 {
 133     QEMUPutKbdEntry *entry;
 134
 135     entry = g_new0(QEMUPutKbdEntry, 1);
 136     entry->put_kbd = func;
 137     entry->opaque = opaque;
 138     entry->s = qemu_input_handler_register((DeviceState *)entry,
 139                                            &legacy_kbd_handler);
 140     qemu_input_handler_activate(entry->s);
 141     return entry;
 142 }
 143
 144 static void legacy_mouse_event(DeviceState *dev, QemuConsole *src,
 145                                InputEvent *evt)
 146 {
 147     static const int bmap[INPUT_BUTTON_MAX] = {
 148         [INPUT_BUTTON_LEFT]   = MOUSE_EVENT_LBUTTON,
 149         [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
 150         [INPUT_BUTTON_RIGHT]  = MOUSE_EVENT_RBUTTON,
 151     };
 152     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 153
 154     switch (evt->kind) {
 155     case INPUT_EVENT_KIND_BTN:
 156         if (evt->btn->down) {
 157             s->buttons |= bmap[evt->btn->button];
 158         } else {
 159             s->buttons &= ~bmap[evt->btn->button];
 160         }
 161         if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_UP) {
 162             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 163                                     s->axis[INPUT_AXIS_X],
 164                                     s->axis[INPUT_AXIS_Y],
 165                                     -1,
 166                                     s->buttons);
 167         }
 168         if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_DOWN) {
 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         break;
 176     case INPUT_EVENT_KIND_ABS:
 177         s->axis[evt->abs->axis] = evt->abs->value;
 178         break;
 179     case INPUT_EVENT_KIND_REL:
 180         s->axis[evt->rel->axis] += evt->rel->value;
 181         break;
 182     default:
 183         break;
 184     }
 185 }
 186
 187 static void legacy_mouse_sync(DeviceState *dev)
 188 {
 189     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 190
 191     s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 192                             s->axis[INPUT_AXIS_X],
 193                             s->axis[INPUT_AXIS_Y],
 194                             0,
 195                             s->buttons);
 196
 197     if (!s->qemu_put_mouse_event_absolute) {
 198         s->axis[INPUT_AXIS_X] = 0;
 199         s->axis[INPUT_AXIS_Y] = 0;
 200     }
 201 }
 202
 203 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
 204                                                 void *opaque, int absolute,
 205                                                 const char *name)
 206 {
 207     QEMUPutMouseEntry *s;
 208
 209     s = g_malloc0(sizeof(QEMUPutMouseEntry));
 210
 211     s->qemu_put_mouse_event = func;
 212     s->qemu_put_mouse_event_opaque = opaque;
 213     s->qemu_put_mouse_event_absolute = absolute;
 214
 215     s->h.name = name;
 216     s->h.mask = INPUT_EVENT_MASK_BTN |
 217         (absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
 218     s->h.event = legacy_mouse_event;
 219     s->h.sync = legacy_mouse_sync;
 220     s->s = qemu_input_handler_register((DeviceState *)s,
 221                                        &s->h);
 222
 223     return s;
 224 }
 225
 226 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
 227 {
 228     qemu_input_handler_activate(entry->s);
 229 }
 230
 231 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 232 {
 233     qemu_input_handler_unregister(entry->s);
 234
 235     g_free(entry);
 236 }
 237
 238 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
 239                                             void *opaque)
 240 {
 241     QEMUPutLEDEntry *s;
 242
 243     s = g_malloc0(sizeof(QEMUPutLEDEntry));
 244
 245     s->put_led = func;
 246     s->opaque = opaque;
 247     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
 248     return s;
 249 }
 250
 251 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
 252 {
 253     if (entry == NULL)
 254         return;
 255     QTAILQ_REMOVE(&led_handlers, entry, next);
 256     g_free(entry);
 257 }
 258
 259 void kbd_put_ledstate(int ledstate)
 260 {
 261     QEMUPutLEDEntry *cursor;
 262
 263     QTAILQ_FOREACH(cursor, &led_handlers, next) {
 264         cursor->put_led(cursor->opaque, ledstate);
 265     }
 266 }