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authorAnthony Liguori <aliguori@us.ibm.com>2010-03-09 13:25:00 -0600
committerAnthony Liguori <aliguori@us.ibm.com>2010-03-19 15:27:38 -0500
commit7e581fb3b126691a4358fcc7057b234dcb9ea3ad (patch)
treeb70a9572c5f506edbb4c73b95526b10d62b5e586 /input.c
parenteb2e259d95a67ef0cd8a61c0bd4974559e9bfa5d (diff)
Add notifier for mouse mode changes
Right now, DisplayState clients rely on polling the mouse mode to determine when the device is changed to an absolute device. Use a notification list to add an explicit notification. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'input.c')
-rw-r--r--input.c37
1 files changed, 36 insertions, 1 deletions
diff --git a/input.c b/input.c
index 8d5a14d2da..c956e06f77 100644
--- a/input.c
+++ b/input.c
@@ -28,12 +28,13 @@
#include "console.h"
#include "qjson.h"
-
static QEMUPutKBDEvent *qemu_put_kbd_event;
static void *qemu_put_kbd_event_opaque;
static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers = QTAILQ_HEAD_INITIALIZER(led_handlers);
static QTAILQ_HEAD(, QEMUPutMouseEntry) mouse_handlers =
QTAILQ_HEAD_INITIALIZER(mouse_handlers);
+static NotifierList mouse_mode_notifiers =
+ NOTIFIER_LIST_INITIALIZER(mouse_mode_notifiers);
void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
{
@@ -41,6 +42,24 @@ void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
qemu_put_kbd_event = func;
}
+static void check_mode_change(void)
+{
+ static int current_is_absolute, current_has_absolute;
+ int is_absolute;
+ int has_absolute;
+
+ is_absolute = kbd_mouse_is_absolute();
+ has_absolute = kbd_mouse_has_absolute();
+
+ if (is_absolute != current_is_absolute ||
+ has_absolute != current_has_absolute) {
+ notifier_list_notify(&mouse_mode_notifiers);
+ }
+
+ current_is_absolute = is_absolute;
+ current_has_absolute = has_absolute;
+}
+
QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
void *opaque, int absolute,
const char *name)
@@ -58,6 +77,8 @@ QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
QTAILQ_INSERT_TAIL(&mouse_handlers, s, node);
+ check_mode_change();
+
return s;
}
@@ -75,6 +96,8 @@ void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
qemu_free(entry->qemu_put_mouse_event_name);
qemu_free(entry);
+
+ check_mode_change();
}
QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
@@ -256,4 +279,16 @@ void do_mouse_set(Monitor *mon, const QDict *qdict)
if (!found) {
monitor_printf(mon, "Mouse at given index not found\n");
}
+
+ check_mode_change();
+}
+
+void qemu_add_mouse_mode_change_notifier(Notifier *notify)
+{
+ notifier_list_add(&mouse_mode_notifiers, notify);
+}
+
+void qemu_remove_mouse_mode_change_notifier(Notifier *notify)
+{
+ notifier_list_remove(&mouse_mode_notifiers, notify);
}