ui/input-legacy.c - qemu - Git at Google

 /*
  * QEMU System Emulator
  *
  * Copyright (c) 2003-2008 Fabrice Bellard
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */

 #include "qemu/osdep.h"
 #include "qapi/qapi-commands-ui.h"
 #include "sysemu/sysemu.h"
 #include "ui/console.h"
 #include "keymaps.h"
 #include "ui/input.h"

 struct QEMUPutMouseEntry {
     QEMUPutMouseEvent *qemu_put_mouse_event;
     void *qemu_put_mouse_event_opaque;
     int qemu_put_mouse_event_absolute;

     /* new input core */
     QemuInputHandler h;
     QemuInputHandlerState *s;
     int axis[INPUT_AXIS__MAX];
     int buttons;
 };

 struct QEMUPutKbdEntry {
     QEMUPutKBDEvent *put_kbd;
     void *opaque;
     QemuInputHandlerState *s;
 };

 struct QEMUPutLEDEntry {
     QEMUPutLEDEvent *put_led;
     void *opaque;
     QTAILQ_ENTRY(QEMUPutLEDEntry) next;
 };

 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
     QTAILQ_HEAD_INITIALIZER(led_handlers);

 int index_from_key(const char *key, size_t key_length)
 {
     int i;

     for (i = 0; i < Q_KEY_CODE__MAX; i++) {
         if (!strncmp(key, QKeyCode_str(i), key_length) &&
             !QKeyCode_str(i)[key_length]) {
             break;
         }
     }

     /* Return Q_KEY_CODE__MAX if the key is invalid */
     return i;
 }

 static KeyValue *copy_key_value(KeyValue *src)
 {
     KeyValue *dst = g_new(KeyValue, 1);
     memcpy(dst, src, sizeof(*src));
     if (dst->type == KEY_VALUE_KIND_NUMBER) {
         QKeyCode code = qemu_input_key_number_to_qcode(dst->u.number.data);
         dst->type = KEY_VALUE_KIND_QCODE;
         dst->u.qcode.data = code;
     }
     return dst;
 }

 void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
                   Error **errp)
 {
     KeyValueList *p;
     KeyValue **up = NULL;
     int count = 0;

     if (!has_hold_time) {
         hold_time = 0; /* use default */
     }

     for (p = keys; p != NULL; p = p->next) {
         qemu_input_event_send_key(NULL, copy_key_value(p->value), true);
         qemu_input_event_send_key_delay(hold_time);
         up = g_realloc(up, sizeof(*up) * (count+1));
         up[count] = copy_key_value(p->value);
         count++;
     }
     while (count) {
         count--;
         qemu_input_event_send_key(NULL, up[count], false);
         qemu_input_event_send_key_delay(hold_time);
     }
     g_free(up);
 }

 static void legacy_kbd_event(DeviceState *dev, QemuConsole *src,
                              InputEvent *evt)
 {
     QEMUPutKbdEntry *entry = (QEMUPutKbdEntry *)dev;
     int scancodes[3], i, count;
     InputKeyEvent *key = evt->u.key.data;

     if (!entry || !entry->put_kbd) {
         return;
     }
     count = qemu_input_key_value_to_scancode(key->key,
                                              key->down,
                                              scancodes);
     for (i = 0; i < count; i++) {
         entry->put_kbd(entry->opaque, scancodes[i]);
     }
 }

 static QemuInputHandler legacy_kbd_handler = {
     .name  = "legacy-kbd",
     .mask  = INPUT_EVENT_MASK_KEY,
     .event = legacy_kbd_event,
 };

 QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
 {
     QEMUPutKbdEntry *entry;

     entry = g_new0(QEMUPutKbdEntry, 1);
     entry->put_kbd = func;
     entry->opaque = opaque;
     entry->s = qemu_input_handler_register((DeviceState *)entry,
                                            &legacy_kbd_handler);
     qemu_input_handler_activate(entry->s);
     return entry;
 }

 static void legacy_mouse_event(DeviceState *dev, QemuConsole *src,
                                InputEvent *evt)
 {
     static const int bmap[INPUT_BUTTON__MAX] = {
         [INPUT_BUTTON_LEFT]   = MOUSE_EVENT_LBUTTON,
         [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
         [INPUT_BUTTON_RIGHT]  = MOUSE_EVENT_RBUTTON,
     };
     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
     InputBtnEvent *btn;
     InputMoveEvent *move;

     switch (evt->type) {
     case INPUT_EVENT_KIND_BTN:
         btn = evt->u.btn.data;
         if (btn->down) {
             s->buttons |= bmap[btn->button];
         } else {
             s->buttons &= ~bmap[btn->button];
         }
         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_UP) {
             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
                                     s->axis[INPUT_AXIS_X],
                                     s->axis[INPUT_AXIS_Y],
                                     -1,
                                     s->buttons);
         }
         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_DOWN) {
             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
                                     s->axis[INPUT_AXIS_X],
                                     s->axis[INPUT_AXIS_Y],
                                     1,
                                     s->buttons);
         }
         break;
     case INPUT_EVENT_KIND_ABS:
         move = evt->u.abs.data;
         s->axis[move->axis] = move->value;
         break;
     case INPUT_EVENT_KIND_REL:
         move = evt->u.rel.data;
         s->axis[move->axis] += move->value;
         break;
     default:
         break;
     }
 }

 static void legacy_mouse_sync(DeviceState *dev)
 {
     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;

     s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
                             s->axis[INPUT_AXIS_X],
                             s->axis[INPUT_AXIS_Y],
                             0,
                             s->buttons);

     if (!s->qemu_put_mouse_event_absolute) {
         s->axis[INPUT_AXIS_X] = 0;
         s->axis[INPUT_AXIS_Y] = 0;
     }
 }

 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
                                                 void *opaque, int absolute,
                                                 const char *name)
 {
     QEMUPutMouseEntry *s;

     s = g_new0(QEMUPutMouseEntry, 1);

     s->qemu_put_mouse_event = func;
     s->qemu_put_mouse_event_opaque = opaque;
     s->qemu_put_mouse_event_absolute = absolute;

     s->h.name = name;
     s->h.mask = INPUT_EVENT_MASK_BTN |
         (absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
     s->h.event = legacy_mouse_event;
     s->h.sync = legacy_mouse_sync;
     s->s = qemu_input_handler_register((DeviceState *)s,
                                        &s->h);

     return s;
 }

 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
 {
     qemu_input_handler_activate(entry->s);
 }

 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 {
     qemu_input_handler_unregister(entry->s);

     g_free(entry);
 }

 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
                                             void *opaque)
 {
     QEMUPutLEDEntry *s;

     s = g_new0(QEMUPutLEDEntry, 1);

     s->put_led = func;
     s->opaque = opaque;
     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
     return s;
 }

 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
 {
     if (entry == NULL)
         return;
     QTAILQ_REMOVE(&led_handlers, entry, next);
     g_free(entry);
 }

 void kbd_put_ledstate(int ledstate)
 {
     QEMUPutLEDEntry *cursor;

     QTAILQ_FOREACH(cursor, &led_handlers, next) {
         cursor->put_led(cursor->opaque, ledstate);
     }
 }
	/*
	* QEMU System Emulator
	*
	* Copyright (c) 2003-2008 Fabrice Bellard
	*
	* Permission is hereby granted, free of charge, to any person obtaining a copy
	* of this software and associated documentation files (the "Software"), to deal
	* in the Software without restriction, including without limitation the rights
	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	* copies of the Software, and to permit persons to whom the Software is
	* furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	* THE SOFTWARE.
	*/

	#include "qemu/osdep.h"
	#include "qapi/qapi-commands-ui.h"
	#include "sysemu/sysemu.h"
	#include "ui/console.h"
	#include "keymaps.h"
	#include "ui/input.h"

	struct QEMUPutMouseEntry {
	QEMUPutMouseEvent *qemu_put_mouse_event;
	void *qemu_put_mouse_event_opaque;
	int qemu_put_mouse_event_absolute;

	/* new input core */
	QemuInputHandler h;
	QemuInputHandlerState *s;
	int axis[INPUT_AXIS__MAX];
	int buttons;
	};

	struct QEMUPutKbdEntry {
	QEMUPutKBDEvent *put_kbd;
	void *opaque;
	QemuInputHandlerState *s;
	};

	struct QEMUPutLEDEntry {
	QEMUPutLEDEvent *put_led;
	void *opaque;
	QTAILQ_ENTRY(QEMUPutLEDEntry) next;
	};

	static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
	QTAILQ_HEAD_INITIALIZER(led_handlers);

	int index_from_key(const char *key, size_t key_length)
	{
	int i;

	for (i = 0; i < Q_KEY_CODE__MAX; i++) {
	if (!strncmp(key, QKeyCode_str(i), key_length) &&
	!QKeyCode_str(i)[key_length]) {
	break;
	}
	}

	/* Return Q_KEY_CODE__MAX if the key is invalid */
	return i;
	}

	static KeyValue copy_key_value(KeyValue src)
	{
	KeyValue *dst = g_new(KeyValue, 1);
	memcpy(dst, src, sizeof(*src));
	if (dst->type == KEY_VALUE_KIND_NUMBER) {
	QKeyCode code = qemu_input_key_number_to_qcode(dst->u.number.data);
	dst->type = KEY_VALUE_KIND_QCODE;
	dst->u.qcode.data = code;
	}
	return dst;
	}

	void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
	Error **errp)
	{
	KeyValueList *p;
	KeyValue **up = NULL;
	int count = 0;

	if (!has_hold_time) {
	hold_time = 0; /* use default */
	}

	for (p = keys; p != NULL; p = p->next) {
	qemu_input_event_send_key(NULL, copy_key_value(p->value), true);
	qemu_input_event_send_key_delay(hold_time);
	up = g_realloc(up, sizeof(up) (count+1));
	up[count] = copy_key_value(p->value);
	count++;
	}
	while (count) {
	count--;
	qemu_input_event_send_key(NULL, up[count], false);
	qemu_input_event_send_key_delay(hold_time);
	}
	g_free(up);
	}

	static void legacy_kbd_event(DeviceState dev, QemuConsole src,
	InputEvent *evt)
	{
	QEMUPutKbdEntry entry = (QEMUPutKbdEntry )dev;
	int scancodes[3], i, count;
	InputKeyEvent *key = evt->u.key.data;

	if (!entry \|\| !entry->put_kbd) {
	return;
	}
	count = qemu_input_key_value_to_scancode(key->key,
	key->down,
	scancodes);
	for (i = 0; i < count; i++) {
	entry->put_kbd(entry->opaque, scancodes[i]);
	}
	}

	static QemuInputHandler legacy_kbd_handler = {
	.name = "legacy-kbd",
	.mask = INPUT_EVENT_MASK_KEY,
	.event = legacy_kbd_event,
	};

	QEMUPutKbdEntry qemu_add_kbd_event_handler(QEMUPutKBDEvent func, void *opaque)
	{
	QEMUPutKbdEntry *entry;

	entry = g_new0(QEMUPutKbdEntry, 1);
	entry->put_kbd = func;
	entry->opaque = opaque;
	entry->s = qemu_input_handler_register((DeviceState *)entry,
	&legacy_kbd_handler);
	qemu_input_handler_activate(entry->s);
	return entry;
	}

	static void legacy_mouse_event(DeviceState dev, QemuConsole src,
	InputEvent *evt)
	{
	static const int bmap[INPUT_BUTTON__MAX] = {
	[INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
	[INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
	[INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
	};
	QEMUPutMouseEntry s = (QEMUPutMouseEntry )dev;
	InputBtnEvent *btn;
	InputMoveEvent *move;

	switch (evt->type) {
	case INPUT_EVENT_KIND_BTN:
	btn = evt->u.btn.data;
	if (btn->down) {
	s->buttons \|= bmap[btn->button];
	} else {
	s->buttons &= ~bmap[btn->button];
	}
	if (btn->down && btn->button == INPUT_BUTTON_WHEEL_UP) {
	s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
	s->axis[INPUT_AXIS_X],
	s->axis[INPUT_AXIS_Y],
	-1,
	s->buttons);
	}
	if (btn->down && btn->button == INPUT_BUTTON_WHEEL_DOWN) {
	s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
	s->axis[INPUT_AXIS_X],
	s->axis[INPUT_AXIS_Y],
	1,
	s->buttons);
	}
	break;
	case INPUT_EVENT_KIND_ABS:
	move = evt->u.abs.data;
	s->axis[move->axis] = move->value;
	break;
	case INPUT_EVENT_KIND_REL:
	move = evt->u.rel.data;
	s->axis[move->axis] += move->value;
	break;
	default:
	break;
	}
	}

	static void legacy_mouse_sync(DeviceState *dev)
	{
	QEMUPutMouseEntry s = (QEMUPutMouseEntry )dev;

	s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
	s->axis[INPUT_AXIS_X],
	s->axis[INPUT_AXIS_Y],
	0,
	s->buttons);

	if (!s->qemu_put_mouse_event_absolute) {
	s->axis[INPUT_AXIS_X] = 0;
	s->axis[INPUT_AXIS_Y] = 0;
	}
	}

	QEMUPutMouseEntry qemu_add_mouse_event_handler(QEMUPutMouseEvent func,
	void *opaque, int absolute,
	const char *name)
	{
	QEMUPutMouseEntry *s;

	s = g_new0(QEMUPutMouseEntry, 1);

	s->qemu_put_mouse_event = func;
	s->qemu_put_mouse_event_opaque = opaque;
	s->qemu_put_mouse_event_absolute = absolute;

	s->h.name = name;
	s->h.mask = INPUT_EVENT_MASK_BTN \|
	(absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
	s->h.event = legacy_mouse_event;
	s->h.sync = legacy_mouse_sync;
	s->s = qemu_input_handler_register((DeviceState *)s,
	&s->h);

	return s;
	}

	void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
	{
	qemu_input_handler_activate(entry->s);
	}

	void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
	{
	qemu_input_handler_unregister(entry->s);

	g_free(entry);
	}

	QEMUPutLEDEntry qemu_add_led_event_handler(QEMUPutLEDEvent func,
	void *opaque)
	{
	QEMUPutLEDEntry *s;

	s = g_new0(QEMUPutLEDEntry, 1);

	s->put_led = func;
	s->opaque = opaque;
	QTAILQ_INSERT_TAIL(&led_handlers, s, next);
	return s;
	}

	void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
	{
	if (entry == NULL)
	return;
	QTAILQ_REMOVE(&led_handlers, entry, next);
	g_free(entry);
	}

	void kbd_put_ledstate(int ledstate)
	{
	QEMUPutLEDEntry *cursor;

	QTAILQ_FOREACH(cursor, &led_handlers, next) {
	cursor->put_led(cursor->opaque, ledstate);
	}
	}