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Better error reporting when applying custom layouts.

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This commit is contained in:
Nicholas Marriott 2022-04-06 14:41:44 +01:00
parent 18105c8ecb
commit 996e54763c
3 changed files with 22 additions and 10 deletions
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7
cmd-select-layout.c
View File

@ -77,7 +77,7 @@ cmd_select_layout_exec(struct cmd *self, struct cmdq_item *item)
struct window *w = wl->window;
struct window_pane *wp = target->wp;
const char *layoutname;
char *oldlayout;
char *oldlayout, *cause;
int next, previous, layout;
server_unzoom_window(w);
@ -124,8 +124,9 @@ cmd_select_layout_exec(struct cmd *self, struct cmdq_item *item)
}
if (layoutname != NULL) {
if (layout_parse(w, layoutname) == -1) {
cmdq_error(item, "can't set layout: %s", layoutname);
if (layout_parse(w, layoutname, &cause) == -1) {
cmdq_error(item, "%s: %s", cause, layoutname);
free(cause);
goto error;
}
goto changed;

23
layout-custom.c
View File

@ -154,7 +154,7 @@ layout_check(struct layout_cell *lc)
/* Parse a layout string and arrange window as layout. */
int
layout_parse(struct window *w, const char *layout)
layout_parse(struct window *w, const char *layout, char **cause)
{
struct layout_cell *lc, *lcchild;
struct window_pane *wp;
@ -165,22 +165,31 @@ layout_parse(struct window *w, const char *layout)
if (sscanf(layout, "%hx,", &csum) != 1)
return (-1);
layout += 5;
if (csum != layout_checksum(layout))
if (csum != layout_checksum(layout)) {
*cause = xstrdup("invalid layout");
return (-1);
}
/* Build the layout. */
lc = layout_construct(NULL, &layout);
if (lc == NULL)
if (lc == NULL) {
*cause = xstrdup("invalid layout");
return (-1);
if (*layout != '\0')
}
if (*layout != '\0') {
*cause = xstrdup("invalid layout");
goto fail;
}
/* Check this window will fit into the layout. */
for (;;) {
npanes = window_count_panes(w);
ncells = layout_count_cells(lc);
if (npanes > ncells)
if (npanes > ncells) {
xasprintf(cause, "have %u panes but need %u", npanes,
ncells);
goto fail;
}
if (npanes == ncells)
break;
@ -217,8 +226,10 @@ layout_parse(struct window *w, const char *layout)
}
/* Check the new layout. */
if (!layout_check(lc))
if (!layout_check(lc)) {
*cause = xstrdup("size mismatch after applying layout");
return (-1);
}
/* Resize to the layout size. */
window_resize(w, lc->sx, lc->sy, -1, -1);

2
tmux.h
View File

@ -3020,7 +3020,7 @@ void layout_spread_out(struct window_pane *);
/* layout-custom.c */
char *layout_dump(struct layout_cell *);
int layout_parse(struct window *, const char *);
int layout_parse(struct window *, const char *, char **);
/* layout-set.c */
int layout_set_lookup(const char *);