qemu/ui/input.c
Gerd Hoffmann 6567147588 input: keyboard: add helper functions to core
A bunch of helper functions to manage keyboard events,
to make life simpler for the ui code when submitting
keyboard events.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-03-05 09:50:17 +01:00

119 lines
2.8 KiB
C

#include "sysemu/sysemu.h"
#include "qapi-types.h"
#include "ui/input.h"
struct QemuInputHandlerState {
DeviceState *dev;
QemuInputHandler *handler;
int id;
int events;
QTAILQ_ENTRY(QemuInputHandlerState) node;
};
static QTAILQ_HEAD(, QemuInputHandlerState) handlers =
QTAILQ_HEAD_INITIALIZER(handlers);
QemuInputHandlerState *qemu_input_handler_register(DeviceState *dev,
QemuInputHandler *handler)
{
QemuInputHandlerState *s = g_new0(QemuInputHandlerState, 1);
static int id = 1;
s->dev = dev;
s->handler = handler;
s->id = id++;
QTAILQ_INSERT_TAIL(&handlers, s, node);
return s;
}
void qemu_input_handler_activate(QemuInputHandlerState *s)
{
QTAILQ_REMOVE(&handlers, s, node);
QTAILQ_INSERT_HEAD(&handlers, s, node);
}
void qemu_input_handler_unregister(QemuInputHandlerState *s)
{
QTAILQ_REMOVE(&handlers, s, node);
g_free(s);
}
static QemuInputHandlerState*
qemu_input_find_handler(uint32_t mask)
{
QemuInputHandlerState *s;
QTAILQ_FOREACH(s, &handlers, node) {
if (mask & s->handler->mask) {
return s;
}
}
return NULL;
}
void qemu_input_event_send(QemuConsole *src, InputEvent *evt)
{
QemuInputHandlerState *s;
if (!runstate_is_running() && !runstate_check(RUN_STATE_SUSPENDED)) {
return;
}
s = qemu_input_find_handler(1 << evt->kind);
s->handler->event(s->dev, src, evt);
s->events++;
}
void qemu_input_event_sync(void)
{
QemuInputHandlerState *s;
if (!runstate_is_running() && !runstate_check(RUN_STATE_SUSPENDED)) {
return;
}
QTAILQ_FOREACH(s, &handlers, node) {
if (!s->events) {
continue;
}
if (s->handler->sync) {
s->handler->sync(s->dev);
}
s->events = 0;
}
}
InputEvent *qemu_input_event_new_key(KeyValue *key, bool down)
{
InputEvent *evt = g_new0(InputEvent, 1);
evt->key = g_new0(InputKeyEvent, 1);
evt->kind = INPUT_EVENT_KIND_KEY;
evt->key->key = key;
evt->key->down = down;
return evt;
}
void qemu_input_event_send_key(QemuConsole *src, KeyValue *key, bool down)
{
InputEvent *evt;
evt = qemu_input_event_new_key(key, down);
qemu_input_event_send(src, evt);
qemu_input_event_sync();
qapi_free_InputEvent(evt);
}
void qemu_input_event_send_key_number(QemuConsole *src, int num, bool down)
{
KeyValue *key = g_new0(KeyValue, 1);
key->kind = KEY_VALUE_KIND_NUMBER;
key->number = num;
qemu_input_event_send_key(src, key, down);
}
void qemu_input_event_send_key_qcode(QemuConsole *src, QKeyCode q, bool down)
{
KeyValue *key = g_new0(KeyValue, 1);
key->kind = KEY_VALUE_KIND_QCODE;
key->qcode = q;
qemu_input_event_send_key(src, key, down);
}