vnc: Add cut-text events

include/vnc.h

@@ -17,6 +17,7 @@
 #pragma once
 
 #include <stdbool.h>
+#include <unistd.h>
 #include <pixman.h>
 #include <wayland-client.h>
 #include <rfb/rfbclient.h>
@@ -26,6 +27,7 @@ struct vnc_client {
 
 	int (*alloc_fb)(struct vnc_client*);
 	void (*update_fb)(struct vnc_client*);
+	void (*cut_text)(struct vnc_client*, const char*, size_t);
 
 	void* userdata;
 	struct pixman_region16 damage;
@@ -54,3 +56,5 @@ void vnc_client_send_keyboard_event(struct vnc_client* self, uint32_t symbol,
 void vnc_client_set_encodings(struct vnc_client* self, const char* encodings);
 void vnc_client_set_quality_level(struct vnc_client* self, int value);
 void vnc_client_set_compression_level(struct vnc_client* self, int value);
+void vnc_client_send_cut_text(struct vnc_client* self, const char* text,
+		size_t len);

src/vnc.c

@@ -56,6 +56,15 @@ static void vnc_client_finish_update(rfbClient* client)
 	pixman_region_clear(&self->damage);
 }
 
+static void vnc_client_got_cut_text(rfbClient* client, const char* text,
+		int len)
+{
+	struct vnc_client* self = rfbClientGetClientData(client, NULL);
+	assert(self);
+
+	self->cut_text(self, text, len);
+}
+
 struct vnc_client* vnc_client_create(void)
 {
 	struct vnc_client* self = calloc(1, sizeof(*self));
@@ -80,6 +89,7 @@ struct vnc_client* vnc_client_create(void)
 	client->MallocFrameBuffer = vnc_client_alloc_fb;
 	client->GotFrameBufferUpdate = vnc_client_update_box;
 	client->FinishedFrameBufferUpdate = vnc_client_finish_update;
+	client->GotXCutText = vnc_client_got_cut_text;
 
 	return self;
 
@@ -240,3 +250,10 @@ void vnc_client_set_compression_level(struct vnc_client* self, int value)
 {
 	self->client->appData.compressLevel = value;
 }
+
+void vnc_client_send_cut_text(struct vnc_client* self, const char* text,
+		size_t len)
+{
+	// libvncclient doesn't modify text, so typecast is OK.
+	SendClientCutText(self->client, (char*)text, len);
+}