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From 33298d6df67e2ba3d90abdc94250eeaa963c3730 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Fri, 3 May 2019 14:51:30 +0000
Subject: [PATCH] Instead of processing keys all together, put them up on the
client command queue so they are ordered correctly with the commands that
they execute.
---
server-client.c | 63 ++++++++++++++++++++++++++++++-------------------
tmux.h | 13 +++++++---
tty-keys.c | 60 +++++++++++++++++++++++++++-------------------
3 files changed, 85 insertions(+), 51 deletions(-)
diff --git a/server-client.c b/server-client.c
index 4cd5be745..a3d6aebf5 100644
--- a/server-client.c
+++ b/server-client.c
@@ -35,7 +35,7 @@
static void server_client_free(int, short, void *);
static void server_client_check_focus(struct window_pane *);
static void server_client_check_resize(struct window_pane *);
-static key_code server_client_check_mouse(struct client *);
+static key_code server_client_check_mouse(struct client *, struct key_event *);
static void server_client_repeat_timer(int, short, void *);
static void server_client_click_timer(int, short, void *);
static void server_client_check_exit(struct client *);
@@ -407,10 +407,10 @@ server_client_exec(struct client *c, const char *cmd)
/* Check for mouse keys. */
static key_code
-server_client_check_mouse(struct client *c)
+server_client_check_mouse(struct client *c, struct key_event *event)
{
+ struct mouse_event *m = &event->m;
struct session *s = c->session;
- struct mouse_event *m = &c->tty.mouse;
struct winlink *wl;
struct window_pane *wp;
u_int x, y, b, sx, sy, px, py;
@@ -419,7 +419,13 @@ server_client_check_mouse(struct client *c)
struct timeval tv;
struct style_range *sr;
enum { NOTYPE, MOVE, DOWN, UP, DRAG, WHEEL, DOUBLE, TRIPLE } type;
- enum { NOWHERE, PANE, STATUS, STATUS_LEFT, STATUS_RIGHT, STATUS_DEFAULT, BORDER } where;
+ enum { NOWHERE,
+ PANE,
+ STATUS,
+ STATUS_LEFT,
+ STATUS_RIGHT,
+ STATUS_DEFAULT,
+ BORDER } where;
type = NOTYPE;
where = NOWHERE;
@@ -976,11 +982,17 @@ server_client_assume_paste(struct session *s)
return (0);
}
-/* Handle data key input from client. */
-void
-server_client_handle_key(struct client *c, key_code key)
+/*
+ * Handle data key input from client. This owns and can modify the key event it
+ * is given and is responsible for freeing it.
+ */
+enum cmd_retval
+server_client_key_callback(struct cmdq_item *item, void *data)
{
- struct mouse_event *m = &c->tty.mouse;
+ struct client *c = item->client;
+ struct key_event *event = data;
+ key_code key = event->key;
+ struct mouse_event *m = &event->m;
struct session *s = c->session;
struct winlink *wl;
struct window *w;
@@ -995,7 +1007,7 @@ server_client_handle_key(struct client *c, key_code key)
/* Check the client is good to accept input. */
if (s == NULL || (c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
- return;
+ goto out;
wl = s->curw;
w = wl->window;
@@ -1007,11 +1019,11 @@ server_client_handle_key(struct client *c, key_code key)
/* Number keys jump to pane in identify mode. */
if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
if (c->flags & CLIENT_READONLY)
- return;
+ goto out;
window_unzoom(w);
wp = window_pane_at_index(w, key - '0');
server_client_clear_identify(c, wp);
- return;
+ goto out;
}
/* Handle status line. */
@@ -1021,19 +1033,19 @@ server_client_handle_key(struct client *c, key_code key)
}
if (c->prompt_string != NULL) {
if (c->flags & CLIENT_READONLY)
- return;
+ goto out;
if (status_prompt_key(c, key) == 0)
- return;
+ goto out;
}
/* Check for mouse keys. */
m->valid = 0;
if (key == KEYC_MOUSE) {
if (c->flags & CLIENT_READONLY)
- return;
- key = server_client_check_mouse(c);
+ goto out;
+ key = server_client_check_mouse(c, event);
if (key == KEYC_UNKNOWN)
- return;
+ goto out;
m->valid = 1;
m->key = key;
@@ -1044,10 +1056,9 @@ server_client_handle_key(struct client *c, key_code key)
*/
if (key == KEYC_DRAGGING) {
c->tty.mouse_drag_update(c, m);
- return;
+ goto out;
}
- } else
- m->valid = 0;
+ }
/* Find affected pane. */
if (!KEYC_IS_MOUSE(key) || cmd_find_from_mouse(&fs, m, 0) != 0)
@@ -1086,7 +1097,7 @@ server_client_handle_key(struct client *c, key_code key)
strcmp(table->name, "prefix") != 0) {
server_client_set_key_table(c, "prefix");
server_status_client(c);
- return;
+ goto out;
}
flags = c->flags;
@@ -1144,9 +1155,9 @@ server_client_handle_key(struct client *c, key_code key)
server_status_client(c);
/* Execute the key binding. */
- key_bindings_dispatch(bd, NULL, c, m, &fs);
+ key_bindings_dispatch(bd, item, c, m, &fs);
key_bindings_unref_table(table);
- return;
+ goto out;
}
/*
@@ -1181,14 +1192,18 @@ server_client_handle_key(struct client *c, key_code key)
if (first != table && (~flags & CLIENT_REPEAT)) {
server_client_set_key_table(c, NULL);
server_status_client(c);
- return;
+ goto out;
}
forward_key:
if (c->flags & CLIENT_READONLY)
- return;
+ goto out;
if (wp != NULL)
window_pane_key(wp, c, s, wl, key, m);
+
+out:
+ free(event);
+ return (CMD_RETURN_NORMAL);
}
/* Client functions that need to happen every loop. */
diff --git a/tmux.h b/tmux.h
index 0e79d4295..4f69301f7 100644
--- a/tmux.h
+++ b/tmux.h
@@ -1052,6 +1052,12 @@ struct mouse_event {
u_int sgr_b;
};
+/* Key event. */
+struct key_event {
+ key_code key;
+ struct mouse_event m;
+};
+
/* TTY information. */
struct tty_key {
char ch;
@@ -1143,7 +1149,8 @@ struct tty {
TTY_UNKNOWN
} term_type;
- struct mouse_event mouse;
+ u_int mouse_last_x;
+ u_int mouse_last_y;
int mouse_drag_flag;
void (*mouse_drag_update)(struct client *,
struct mouse_event *);
@@ -1864,7 +1871,7 @@ const char *tty_acs_get(struct tty *, u_char);
/* tty-keys.c */
void tty_keys_build(struct tty *);
void tty_keys_free(struct tty *);
-key_code tty_keys_next(struct tty *);
+int tty_keys_next(struct tty *);
/* arguments.c */
void args_set(struct args *, u_char, const char *);
@@ -2002,7 +2009,7 @@ void server_client_set_identify(struct client *, u_int);
void server_client_set_key_table(struct client *, const char *);
const char *server_client_get_key_table(struct client *);
int server_client_check_nested(struct client *);
-void server_client_handle_key(struct client *, key_code);
+enum cmd_retval server_client_key_callback(struct cmdq_item *, void *);
struct client *server_client_create(int);
int server_client_open(struct client *, char **);
void server_client_unref(struct client *);
diff --git a/tty-keys.c b/tty-keys.c
index 850c91197..1aecbcb24 100644
--- a/tty-keys.c
+++ b/tty-keys.c
@@ -46,7 +46,8 @@ static struct tty_key *tty_keys_find(struct tty *, const char *, size_t,
static int tty_keys_next1(struct tty *, const char *, size_t, key_code *,
size_t *, int);
static void tty_keys_callback(int, short, void *);
-static int tty_keys_mouse(struct tty *, const char *, size_t, size_t *);
+static int tty_keys_mouse(struct tty *, const char *, size_t, size_t *,
+ struct mouse_event *);
static int tty_keys_clipboard(struct tty *, const char *, size_t,
size_t *);
static int tty_keys_device_attributes(struct tty *, const char *, size_t,
@@ -560,25 +561,26 @@ tty_keys_next1(struct tty *tty, const char *buf, size_t len, key_code *key,
return (-1);
}
-/*
- * Process at least one key in the buffer and invoke tty->key_callback. Return
- * 0 if there are no further keys, or 1 if there could be more in the buffer.
- */
-key_code
+/* Process at least one key in the buffer. Return 0 if no keys present. */
+int
tty_keys_next(struct tty *tty)
{
- struct client *c = tty->client;
- struct timeval tv;
- const char *buf;
- size_t len, size;
- cc_t bspace;
- int delay, expired = 0, n;
- key_code key;
+ struct client *c = tty->client;
+ struct timeval tv;
+ const char *buf;
+ size_t len, size;
+ cc_t bspace;
+ int delay, expired = 0, n;
+ key_code key;
+ struct cmdq_item *item;
+ struct mouse_event m = { 0 };
+ struct key_event *event;
+
+ gettimeofday(&tv, NULL);
/* Get key buffer. */
buf = EVBUFFER_DATA(tty->in);
len = EVBUFFER_LENGTH(tty->in);
-
if (len == 0)
return (0);
log_debug("%s: keys are %zu (%.*s)", c->name, len, (int)len, buf);
@@ -606,7 +608,7 @@ tty_keys_next(struct tty *tty)
}
/* Is this a mouse key press? */
- switch (tty_keys_mouse(tty, buf, len, &size)) {
+ switch (tty_keys_mouse(tty, buf, len, &size, &m)) {
case 0: /* yes */
key = KEYC_MOUSE;
goto complete_key;
@@ -725,8 +727,14 @@ tty_keys_next(struct tty *tty)
}
/* Fire the key. */
- if (key != KEYC_UNKNOWN)
- server_client_handle_key(tty->client, key);
+ if (key != KEYC_UNKNOWN) {
+ event = xmalloc(sizeof *event);
+ event->key = key;
+ memcpy(&event->m, &m, sizeof event->m);
+
+ item = cmdq_get_callback(server_client_key_callback, event);
+ cmdq_append(c, item);
+ }
return (1);
@@ -756,12 +764,12 @@ tty_keys_callback(__unused int fd, __unused short events, void *data)
* (probably a mouse sequence but need more data).
*/
static int
-tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size)
+tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size,
+ struct mouse_event *m)
{
- struct client *c = tty->client;
- struct mouse_event *m = &tty->mouse;
- u_int i, x, y, b, sgr_b;
- u_char sgr_type, ch;
+ struct client *c = tty->client;
+ u_int i, x, y, b, sgr_b;
+ u_char sgr_type, ch;
/*
* Standard mouse sequences are \033[M followed by three characters
@@ -882,15 +890,19 @@ tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size)
return (-1);
/* Fill mouse event. */
- m->lx = m->x;
+ m->lx = tty->mouse_last_x;
m->x = x;
- m->ly = m->y;
+ m->ly = tty->mouse_last_y;
m->y = y;
m->lb = m->b;
m->b = b;
m->sgr_type = sgr_type;
m->sgr_b = sgr_b;
+ /* Update last mouse state. */
+ tty->mouse_last_x = x;
+ tty->mouse_last_y = y;
+
return (0);
}
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