Register and unregister handlers.
Event dispatcher code.
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
---
include/ui/input.h | 32 +++++++++++++++++++++
ui/Makefile.objs | 2 +-
ui/input.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 116 insertions(+), 1 deletion(-)
create mode 100644 include/ui/input.h
create mode 100644 ui/input.c
diff --git a/include/ui/input.h b/include/ui/input.h
new file mode 100644
index 0000000..3cf3641
--- /dev/null
+++ b/include/ui/input.h
@@ -0,0 +1,32 @@
+#ifndef INPUT_H
+#define INPUT_H
+
+#include "qapi-types.h"
+
+#define INPUT_EVENT_MASK_KEY (1<<INPUT_EVENT_KIND_KEY)
+#define INPUT_EVENT_MASK_BTN (1<<INPUT_EVENT_KIND_BTN)
+#define INPUT_EVENT_MASK_REL (1<<INPUT_EVENT_KIND_REL)
+#define INPUT_EVENT_MASK_ABS (1<<INPUT_EVENT_KIND_ABS)
+
+typedef struct QemuInputHandler QemuInputHandler;
+typedef struct QemuInputHandlerState QemuInputHandlerState;
+
+typedef void (*QemuInputHandlerEvent)(DeviceState *dev, QemuConsole *src,
+ InputEvent *evt);
+typedef void (*QemuInputHandlerSync)(DeviceState *dev);
+
+struct QemuInputHandler {
+ const char *name;
+ uint32_t mask;
+ QemuInputHandlerEvent event;
+ QemuInputHandlerSync sync;
+};
+
+QemuInputHandlerState *qemu_input_handler_register(DeviceState *dev,
+ QemuInputHandler *handler);
+void qemu_input_handler_activate(QemuInputHandlerState *s);
+void qemu_input_handler_unregister(QemuInputHandlerState *s);
+void qemu_input_event_send(QemuConsole *src, InputEvent *evt);
+void qemu_input_event_sync(void);
+
+#endif /* INPUT_H */
diff --git a/ui/Makefile.objs b/ui/Makefile.objs
index 16db07a..e6a5ec1 100644
--- a/ui/Makefile.objs
+++ b/ui/Makefile.objs
@@ -7,7 +7,7 @@ vnc-obj-$(CONFIG_VNC_SASL) += vnc-auth-sasl.o
vnc-obj-$(CONFIG_VNC_WS) += vnc-ws.o
vnc-obj-y += vnc-jobs.o
-common-obj-y += keymaps.o console.o cursor.o input-legacy.o qemu-pixman.o
+common-obj-y += keymaps.o console.o cursor.o input.o input-legacy.o
qemu-pixman.o
common-obj-$(CONFIG_SPICE) += spice-core.o spice-input.o spice-display.o
common-obj-$(CONFIG_SDL) += sdl.o sdl_zoom.o x_keymap.o sdl2.o
common-obj-$(CONFIG_COCOA) += cocoa.o
diff --git a/ui/input.c b/ui/input.c
new file mode 100644
index 0000000..23c84f7
--- /dev/null
+++ b/ui/input.c
@@ -0,0 +1,83 @@
+#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;
+ }
+}
--
1.8.3.1
