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Change copy mode to make copy of the pane history so it does not need to

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freeze updates (which does not play nicely with some applications, a
longstanding problem) and will allow some other changes later. From
Anindya Mukherjee.
This commit is contained in:
nicm
2020-04-06 17:51:34 +00:00
parent fccce69cf0
commit 77b827f879
5 changed files with 53 additions and 49 deletions
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69
window-copy.c
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@@ -130,6 +130,7 @@ static void window_copy_rectangle_toggle(struct window_mode_entry *);
static void window_copy_move_mouse(struct mouse_event *);
static void window_copy_drag_update(struct client *, struct mouse_event *);
static void window_copy_drag_release(struct client *, struct mouse_event *);
static struct screen* window_copy_clone_screen(struct screen *src);
const struct window_mode window_copy_mode = {
.name = "copy-mode",
@@ -205,6 +206,8 @@ struct window_copy_mode_data {
struct screen *backing;
int backing_written; /* backing display started */
int viewmode; /* view mode entered */
u_int oy; /* number of lines scrolled up */
u_int selx; /* beginning of selection */
@@ -295,6 +298,27 @@ window_copy_scroll_timer(__unused int fd, __unused short events, void *arg)
}
}
static struct screen *
window_copy_clone_screen(struct screen *src)
{
struct screen *dst;
struct screen_write_ctx ctx;
dst = xcalloc(1, sizeof *dst);
screen_init(dst, screen_size_x(src),
screen_hsize(src) + screen_size_y(src), src->grid->hlimit);
grid_duplicate_lines(dst->grid, 0, src->grid, 0,
screen_hsize(src) + screen_size_y(src));
dst->grid->sy = screen_size_y(src);
dst->grid->hsize = screen_hsize(src);
screen_write_start(&ctx, NULL, dst);
screen_write_cursormove(&ctx, src->cx, src->cy, 0);
screen_write_stop(&ctx);
return (dst);
}
static struct window_copy_mode_data *
window_copy_common_init(struct window_mode_entry *wme)
{
@@ -320,6 +344,7 @@ window_copy_common_init(struct window_mode_entry *wme)
data->searchmark = NULL;
data->searchx = data->searchy = data->searcho = -1;
data->timeout = 0;
data->viewmode = 0;
data->jumptype = WINDOW_COPY_OFF;
data->jumpchar = '\0';
@@ -343,10 +368,7 @@ window_copy_init(struct window_mode_entry *wme,
data = window_copy_common_init(wme);
if (wp->fd != -1 && wp->disabled++ == 0)
bufferevent_disable(wp->event, EV_READ|EV_WRITE);
data->backing = &wp->base;
data->backing = window_copy_clone_screen(&wp->base);
data->cx = data->backing->cx;
data->cy = data->backing->cy;
@@ -375,6 +397,7 @@ window_copy_view_init(struct window_mode_entry *wme,
struct screen *s;
data = window_copy_common_init(wme);
data->viewmode = 1;
data->backing = s = xmalloc(sizeof *data->backing);
screen_init(s, screen_size_x(base), screen_size_y(base), UINT_MAX);
@@ -385,23 +408,17 @@ window_copy_view_init(struct window_mode_entry *wme,
static void
window_copy_free(struct window_mode_entry *wme)
{
struct window_pane *wp = wme->wp;
struct window_copy_mode_data *data = wme->data;
evtimer_del(&data->dragtimer);
if (wp->fd != -1 && --wp->disabled == 0)
bufferevent_enable(wp->event, EV_READ|EV_WRITE);
free(data->searchmark);
free(data->searchstr);
if (data->backing != &wp->base) {
screen_free(data->backing);
free(data->backing);
}
screen_free(&data->screen);
screen_free(data->backing);
free(data->backing);
screen_free(&data->screen);
free(data);
}
@@ -425,9 +442,6 @@ window_copy_vadd(struct window_pane *wp, const char *fmt, va_list ap)
struct grid_cell gc;
u_int old_hsize, old_cy;
if (backing == &wp->base)
return;
memcpy(&gc, &grid_default_cell, sizeof gc);
old_hsize = screen_hsize(data->backing);
@@ -663,15 +677,13 @@ window_copy_formats(struct window_mode_entry *wme, struct format_tree *ft)
static void
window_copy_resize(struct window_mode_entry *wme, u_int sx, u_int sy)
{
struct window_pane *wp = wme->wp;
struct window_copy_mode_data *data = wme->data;
struct screen *s = &data->screen;
struct screen_write_ctx ctx;
int search;
screen_resize(s, sx, sy, 1);
if (data->backing != &wp->base)
screen_resize(data->backing, sx, sy, 1);
screen_resize(data->backing, sx, sy, 1);
if (data->cy > sy - 1)
data->cy = sy - 1;
@@ -1984,6 +1996,23 @@ window_copy_cmd_search_forward_incremental(struct window_copy_cmd_state *cs)
return (action);
}
static enum window_copy_cmd_action
window_copy_cmd_refresh_from_pane(struct window_copy_cmd_state *cs)
{
struct window_mode_entry *wme = cs->wme;
struct window_pane *wp = wme->wp;
struct window_copy_mode_data *data = wme->data;
if (data->viewmode)
return (WINDOW_COPY_CMD_NOTHING);
screen_free(data->backing);
free(data->backing);
data->backing = window_copy_clone_screen(&wp->base);
return (WINDOW_COPY_CMD_REDRAW);
}
static const struct {
const char *command;
int minargs;
@@ -2089,6 +2118,8 @@ static const struct {
window_copy_cmd_previous_word },
{ "rectangle-toggle", 0, 0, 0,
window_copy_cmd_rectangle_toggle },
{ "refresh-from-pane", 0, 0, 0,
window_copy_cmd_refresh_from_pane },
{ "scroll-down", 0, 0, 1,
window_copy_cmd_scroll_down },
{ "scroll-down-and-cancel", 0, 0, 0,