input.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.h"
  26 #include "net.h"
  27 #include "monitor.h"
  28 #include "console.h"
  29 #include "qjson.h"
  30
  31
  32 static QEMUPutKBDEvent *qemu_put_kbd_event;
  33 static void *qemu_put_kbd_event_opaque;
  34 static QEMUPutMouseEntry *qemu_put_mouse_event_head;
  35 static QEMUPutMouseEntry *qemu_put_mouse_event_current;
  36
  37 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
  38 {
  39     qemu_put_kbd_event_opaque = opaque;
  40     qemu_put_kbd_event = func;
  41 }
  42
  43 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
  44                                                 void *opaque, int absolute,
  45                                                 const char *name)
  46 {
  47     QEMUPutMouseEntry *s, *cursor;
  48
  49     s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
  50
  51     s->qemu_put_mouse_event = func;
  52     s->qemu_put_mouse_event_opaque = opaque;
  53     s->qemu_put_mouse_event_absolute = absolute;
  54     s->qemu_put_mouse_event_name = qemu_strdup(name);
  55     s->next = NULL;
  56
  57     if (!qemu_put_mouse_event_head) {
  58         qemu_put_mouse_event_head = qemu_put_mouse_event_current = s;
  59         return s;
  60     }
  61
  62     cursor = qemu_put_mouse_event_head;
  63     while (cursor->next != NULL)
  64         cursor = cursor->next;
  65
  66     cursor->next = s;
  67     qemu_put_mouse_event_current = s;
  68
  69     return s;
  70 }
  71
  72 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
  73 {
  74     QEMUPutMouseEntry *prev = NULL, *cursor;
  75
  76     if (!qemu_put_mouse_event_head || entry == NULL)
  77         return;
  78
  79     cursor = qemu_put_mouse_event_head;
  80     while (cursor != NULL && cursor != entry) {
  81         prev = cursor;
  82         cursor = cursor->next;
  83     }
  84
  85     if (cursor == NULL) // does not exist or list empty
  86         return;
  87     else if (prev == NULL) { // entry is head
  88         qemu_put_mouse_event_head = cursor->next;
  89         if (qemu_put_mouse_event_current == entry)
  90             qemu_put_mouse_event_current = cursor->next;
  91         qemu_free(entry->qemu_put_mouse_event_name);
  92         qemu_free(entry);
  93         return;
  94     }
  95
  96     prev->next = entry->next;
  97
  98     if (qemu_put_mouse_event_current == entry)
  99         qemu_put_mouse_event_current = prev;
 100
 101     qemu_free(entry->qemu_put_mouse_event_name);
 102     qemu_free(entry);
 103 }
 104
 105 void kbd_put_keycode(int keycode)
 106 {
 107     if (qemu_put_kbd_event) {
 108         qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
 109     }
 110 }
 111
 112 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
 113 {
 114     QEMUPutMouseEvent *mouse_event;
 115     void *mouse_event_opaque;
 116     int width;
 117
 118     if (!qemu_put_mouse_event_current) {
 119         return;
 120     }
 121
 122     mouse_event =
 123         qemu_put_mouse_event_current->qemu_put_mouse_event;
 124     mouse_event_opaque =
 125         qemu_put_mouse_event_current->qemu_put_mouse_event_opaque;
 126
 127     if (mouse_event) {
 128         if (graphic_rotate) {
 129             if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
 130                 width = 0x7fff;
 131             else
 132                 width = graphic_width - 1;
 133             mouse_event(mouse_event_opaque,
 134                                  width - dy, dx, dz, buttons_state);
 135         } else
 136             mouse_event(mouse_event_opaque,
 137                                  dx, dy, dz, buttons_state);
 138     }
 139 }
 140
 141 int kbd_mouse_is_absolute(void)
 142 {
 143     if (!qemu_put_mouse_event_current)
 144         return 0;
 145
 146     return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
 147 }
 148
 149 static void info_mice_iter(QObject *data, void *opaque)
 150 {
 151     QDict *mouse;
 152     Monitor *mon = opaque;
 153
 154     mouse = qobject_to_qdict(data);
 155     monitor_printf(mon, "%c Mouse #%" PRId64 ": %s\n",
 156                   (qdict_get_bool(mouse, "current") ? '*' : ' '),
 157                   qdict_get_int(mouse, "index"), qdict_get_str(mouse, "name"));
 158 }
 159
 160 void do_info_mice_print(Monitor *mon, const QObject *data)
 161 {
 162     QList *mice_list;
 163
 164     mice_list = qobject_to_qlist(data);
 165     if (qlist_empty(mice_list)) {
 166         monitor_printf(mon, "No mouse devices connected\n");
 167         return;
 168     }
 169
 170     qlist_iter(mice_list, info_mice_iter, mon);
 171 }
 172
 173 /**
 174  * do_info_mice(): Show VM mice information
 175  *
 176  * Each mouse is represented by a QDict, the returned QObject is a QList of
 177  * all mice.
 178  *
 179  * The mouse QDict contains the following:
 180  *
 181  * - "name": mouse's name
 182  * - "index": mouse's index
 183  * - "current": true if this mouse is receiving events, false otherwise
 184  *
 185  * Example:
 186  *
 187  * [ { "name": "QEMU Microsoft Mouse", "index": 0, "current": false },
 188  *   { "name": "QEMU PS/2 Mouse", "index": 1, "current": true } ]
 189  */
 190 void do_info_mice(Monitor *mon, QObject **ret_data)
 191 {
 192     QEMUPutMouseEntry *cursor;
 193     QList *mice_list;
 194     int index = 0;
 195
 196     mice_list = qlist_new();
 197
 198     if (!qemu_put_mouse_event_head) {
 199         goto out;
 200     }
 201
 202     cursor = qemu_put_mouse_event_head;
 203     while (cursor != NULL) {
 204         QObject *obj;
 205         obj = qobject_from_jsonf("{ 'name': %s, 'index': %d, 'current': %i }",
 206                                  cursor->qemu_put_mouse_event_name,
 207                                  index, cursor == qemu_put_mouse_event_current);
 208         qlist_append_obj(mice_list, obj);
 209         index++;
 210         cursor = cursor->next;
 211     }
 212
 213 out:
 214     *ret_data = QOBJECT(mice_list);
 215 }
 216
 217 void do_mouse_set(Monitor *mon, const QDict *qdict)
 218 {
 219     QEMUPutMouseEntry *cursor;
 220     int i = 0;
 221     int index = qdict_get_int(qdict, "index");
 222
 223     if (!qemu_put_mouse_event_head) {
 224         monitor_printf(mon, "No mouse devices connected\n");
 225         return;
 226     }
 227
 228     cursor = qemu_put_mouse_event_head;
 229     while (cursor != NULL && index != i) {
 230         i++;
 231         cursor = cursor->next;
 232     }
 233
 234     if (cursor != NULL)
 235         qemu_put_mouse_event_current = cursor;
 236     else
 237         monitor_printf(mon, "Mouse at given index not found\n");
 238 }