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Change how panes are resized so that the code is clearer and if the pane

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is resized multiple times during one event loop, it is forced to resize
at the end. Also don't zoom/unzoom in switch-client if the pane hasn't
changed. GitHub issue 2260.
This commit is contained in:
nicm
2020-06-05 11:20:51 +00:00
parent 03b2998abe
commit d919fa1ed0
4 changed files with 79 additions and 77 deletions
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122
server-client.c
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@ -45,7 +45,6 @@ static void server_client_check_redraw(struct client *);
static void server_client_set_title(struct client *);
static void server_client_reset_state(struct client *);
static int server_client_assume_paste(struct session *);
static void server_client_resize_event(int, short, void *);
static void server_client_dispatch(struct imsg *, void *);
static void server_client_dispatch_command(struct client *, struct imsg *);
@ -1403,50 +1402,14 @@ server_client_check_window_resize(struct window *w)
resize_window(w, w->new_sx, w->new_sy, w->new_xpixel, w->new_ypixel);
}
/* Check if we need to force a resize. */
static int
server_client_resize_force(struct window_pane *wp)
{
struct timeval tv = { .tv_usec = 100000 };
/*
* If we are resizing to the same size as when we entered the loop
* (that is, to the same size the application currently thinks it is),
* tmux may have gone through several resizes internally and thrown
* away parts of the screen. So we need the application to actually
* redraw even though its final size has not changed.
*/
if (wp->flags & PANE_RESIZEFORCE) {
wp->flags &= ~PANE_RESIZEFORCE;
return (0);
}
if (wp->sx != wp->osx ||
wp->sy != wp->osy ||
wp->sx <= 1 ||
wp->sy <= 1)
return (0);
log_debug("%s: %%%u forcing resize", __func__, wp->id);
window_pane_send_resize(wp, -1);
evtimer_add(&wp->resize_timer, &tv);
wp->flags |= PANE_RESIZEFORCE;
return (1);
}
/* Resize a pane. */
/* Resize timer event. */
static void
server_client_resize_pane(struct window_pane *wp)
server_client_resize_timer(__unused int fd, __unused short events, void *data)
{
log_debug("%s: %%%u resize to %u,%u", __func__, wp->id, wp->sx, wp->sy);
window_pane_send_resize(wp, 0);
struct window_pane *wp = data;
wp->flags &= ~PANE_RESIZE;
wp->osx = wp->sx;
wp->osy = wp->sy;
log_debug("%s: %%%u resize timer expired", __func__, wp->id);
evtimer_del(&wp->resize_timer);
}
/* Start the resize timer. */
@ -1455,49 +1418,74 @@ server_client_start_resize_timer(struct window_pane *wp)
{
struct timeval tv = { .tv_usec = 250000 };
if (!evtimer_pending(&wp->resize_timer, NULL))
evtimer_add(&wp->resize_timer, &tv);
log_debug("%s: %%%u resize timer started", __func__, wp->id);
evtimer_add(&wp->resize_timer, &tv);
}
/* Resize timer event. */
/* Force timer event. */
static void
server_client_resize_event(__unused int fd, __unused short events, void *data)
server_client_force_timer(__unused int fd, __unused short events, void *data)
{
struct window_pane *wp = data;
evtimer_del(&wp->resize_timer);
log_debug("%s: %%%u force timer expired", __func__, wp->id);
evtimer_del(&wp->force_timer);
wp->flags |= PANE_RESIZENOW;
}
if (~wp->flags & PANE_RESIZE)
return;
log_debug("%s: %%%u timer fired (was%s resized)", __func__, wp->id,
(wp->flags & PANE_RESIZED) ? "" : " not");
/* Start the force timer. */
static void
server_client_start_force_timer(struct window_pane *wp)
{
struct timeval tv = { .tv_usec = 10000 };
if (wp->base.saved_grid == NULL && (wp->flags & PANE_RESIZED)) {
log_debug("%s: %%%u deferring timer", __func__, wp->id);
server_client_start_resize_timer(wp);
} else if (!server_client_resize_force(wp)) {
log_debug("%s: %%%u resizing pane", __func__, wp->id);
server_client_resize_pane(wp);
}
wp->flags &= ~PANE_RESIZED;
log_debug("%s: %%%u force timer started", __func__, wp->id);
evtimer_add(&wp->force_timer, &tv);
}
/* Check if pane should be resized. */
static void
server_client_check_pane_resize(struct window_pane *wp)
{
if (!event_initialized(&wp->resize_timer))
evtimer_set(&wp->resize_timer, server_client_resize_timer, wp);
if (!event_initialized(&wp->force_timer))
evtimer_set(&wp->force_timer, server_client_force_timer, wp);
if (~wp->flags & PANE_RESIZE)
return;
log_debug("%s: %%%u needs to be resized", __func__, wp->id);
if (!event_initialized(&wp->resize_timer))
evtimer_set(&wp->resize_timer, server_client_resize_event, wp);
if (evtimer_pending(&wp->resize_timer, NULL)) {
log_debug("%s: %%%u resize timer is running", __func__, wp->id);
return;
}
server_client_start_resize_timer(wp);
if (!evtimer_pending(&wp->resize_timer, NULL)) {
log_debug("%s: %%%u starting timer", __func__, wp->id);
server_client_resize_pane(wp);
server_client_start_resize_timer(wp);
} else
log_debug("%s: %%%u timer running", __func__, wp->id);
if (~wp->flags & PANE_RESIZEFORCE) {
/*
* The timer is not running and we don't need to force a
* resize, so just resize immediately.
*/
log_debug("%s: resizing %%%u now", __func__, wp->id);
window_pane_send_resize(wp, 0);
wp->flags &= ~PANE_RESIZE;
} else {
/*
* The timer is not running, but we need to force a resize. If
* the force timer has expired, resize to the real size now.
* Otherwise resize to the force size and start the timer.
*/
if (wp->flags & PANE_RESIZENOW) {
log_debug("%s: resizing %%%u after forced resize", __func__, wp->id);
window_pane_send_resize(wp, 0);
wp->flags &= ~(PANE_RESIZE|PANE_RESIZEFORCE|PANE_RESIZENOW);
} else if (!evtimer_pending(&wp->force_timer, NULL)) {
log_debug("%s: forcing resize of %%%u", __func__, wp->id);
window_pane_send_resize(wp, 1);
server_client_start_force_timer(wp);
}
}
}
/* Check pane buffer size. */