/* Reads data to be displayed handling error cases. Returns zero on success, 1
* if file is a directory, 2 on file reading error, 3 on issues with viewer or
* 4 on empty input. */
static int
get_view_data(view_info_t *vi, const char file_to_view[])
{
FILE *fp;
const char *const viewer =
get_viewer_for_file(get_last_path_component(file_to_view));
if(is_null_or_empty(viewer))
{
if(is_dir(file_to_view))
{
return 1;
}
else if((fp = fopen(file_to_view, "rb")) == NULL)
{
return 2;
}
}
else if((fp = use_info_prog(viewer)) == NULL)
{
return 3;
}
vi->lines = is_null_or_empty(viewer)
? read_file_lines(fp, &vi->nlines)
: read_stream_lines(fp, &vi->nlines);
fclose(fp);
if(vi->lines == NULL || vi->nlines == 0)
{
return 4;
}
return 0;
}
void
quick_view_file(FileView *view)
{
char path[PATH_MAX];
const dir_entry_t *entry;
if(curr_stats.load_stage < 2)
{
return;
}
if(vle_mode_is(VIEW_MODE))
{
return;
}
if(curr_stats.number_of_windows == 1)
{
return;
}
if(draw_abandoned_view_mode())
{
return;
}
ui_view_erase(other_view);
entry = &view->dir_entry[view->list_pos];
get_full_path_of(entry, sizeof(path), path);
switch(view->dir_entry[view->list_pos].type)
{
case FT_CHAR_DEV:
mvwaddstr(other_view->win, LINE, COL, "File is a Character Device");
break;
case FT_BLOCK_DEV:
mvwaddstr(other_view->win, LINE, COL, "File is a Block Device");
break;
#ifndef _WIN32
case FT_SOCK:
mvwaddstr(other_view->win, LINE, COL, "File is a Socket");
break;
#endif
case FT_FIFO:
mvwaddstr(other_view->win, LINE, COL, "File is a Named Pipe");
break;
case FT_LINK:
if(get_link_target_abs(path, entry->origin, path, sizeof(path)) != 0)
{
mvwaddstr(other_view->win, LINE, COL, "Cannot resolve Link");
break;
}
if(!ends_with_slash(path) && is_dir(path))
{
strncat(path, "/", sizeof(path) - strlen(path) - 1);
}
/* break intensionally omitted */
case FT_UNK:
default:
{
const char *viewer;
FILE *fp;
char *const typed_fname = get_typed_fname(path);
viewer = ft_get_viewer(typed_fname);
free(typed_fname);
if(viewer == NULL && is_dir(path))
{
mvwaddstr(other_view->win, LINE, COL, "File is a Directory");
break;
}
if(is_null_or_empty(viewer))
{
fp = os_fopen(path, "rb");
}
else
{
fp = use_info_prog(viewer);
}
if(fp == NULL)
{
mvwaddstr(other_view->win, LINE, COL, "Cannot open file");
break;
}
ui_view_clear(other_view);
wattrset(other_view->win, 0);
view_file(fp, cfg.wrap_quick_view);
fclose(fp);
break;
}
}
refresh_view_win(other_view);
ui_view_title_update(other_view);
}
/* Reads data to be displayed handling error cases. Returns zero on success, 1
* if file is a directory, 2 on file reading error, 3 on issues with viewer or
* 4 on empty input. */
static int
get_view_data(view_info_t *vi, const char file_to_view[])
{
FILE *fp;
const char *const viewer = gv_get_viewer(file_to_view);
if(is_null_or_empty(viewer))
{
if(is_dir(file_to_view))
{
return 1;
}
fp = os_fopen(file_to_view, "rb");
if(fp == NULL)
{
return 2;
}
vi->lines = read_file_lines(fp, &vi->nlines);
}
else
{
const int graphics = is_graphics_viewer(viewer);
FileView *const curr = curr_view;
curr_view = curr_stats.view ? curr_view
: (vi->view != NULL) ? vi->view : curr_view;
curr_stats.preview_hint = vi->view;
if(graphics)
{
/* Wait a bit to let terminal emulator do actual refresh (at least some
* of them need this). */
usleep(50000);
}
fp = use_info_prog(viewer);
curr_view = curr;
curr_stats.preview_hint = NULL;
if(fp == NULL)
{
return 3;
}
if(graphics)
{
vi->graphics = 1;
}
vi->lines = read_stream_lines(fp, &vi->nlines);
}
fclose(fp);
if(vi->lines == NULL || vi->nlines == 0)
{
return 4;
}
return 0;
}
void
quick_view_file(FileView *view)
{
char buf[PATH_MAX];
if(curr_stats.load_stage < 2)
return;
if(get_mode() == VIEW_MODE)
return;
if(curr_stats.number_of_windows == 1)
return;
werase(other_view->win);
werase(other_view->title);
mvwaddstr(other_view->title, 0, 0, "File: ");
wprint(other_view->title, view->dir_entry[view->list_pos].name);
snprintf(buf, sizeof(buf), "%s/%s", view->curr_dir,
view->dir_entry[view->list_pos].name);
switch(view->dir_entry[view->list_pos].type)
{
case CHARACTER_DEVICE:
mvwaddstr(other_view->win, LINE, COL, "File is a Character Device");
break;
case BLOCK_DEVICE:
mvwaddstr(other_view->win, LINE, COL, "File is a Block Device");
break;
#ifndef _WIN32
case SOCKET:
mvwaddstr(other_view->win, LINE, COL, "File is a Socket");
break;
#endif
case FIFO:
mvwaddstr(other_view->win, LINE, COL, "File is a Named Pipe");
break;
case LINK:
if(get_link_target_abs(buf, view->curr_dir, buf, sizeof(buf)) != 0)
{
mvwaddstr(other_view->win, LINE, COL, "Cannot resolve Link");
break;
}
if(!ends_with_slash(buf) && is_dir(buf))
{
strncat(buf, "/", sizeof(buf) - strlen(buf) - 1);
}
/* break intensionally omitted */
case UNKNOWN:
default:
{
const char *viewer;
FILE *fp;
viewer = get_viewer_for_file(buf);
if(viewer == NULL && is_dir(buf))
{
mvwaddstr(other_view->win, LINE, COL, "File is a Directory");
break;
}
if(is_null_or_empty(viewer))
fp = fopen(buf, "r");
else
fp = use_info_prog(viewer);
if(fp == NULL)
{
mvwaddstr(other_view->win, LINE, COL, "Cannot open file");
break;
}
colmgr_reset();
wattrset(other_view->win, 0);
view_file(fp, cfg.wrap_quick_view);
fclose(fp);
}
break;
}
refresh_view_win(other_view);
wrefresh(other_view->title);
}
