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This commit is contained in:
Přemysl Eric Janouch 2017-01-23 23:32:30 +01:00
parent fc5981a361
commit a1e9d660bd
Signed by: p
GPG Key ID: B715679E3A361BE6
5 changed files with 60 additions and 333 deletions
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3
CMakeLists.txt
View File

@ -18,7 +18,7 @@ set (project_VERSION "${project_VERSION}.${project_VERSION_MINOR}")
set (project_VERSION "${project_VERSION}.${project_VERSION_PATCH}")
# For custom modules
set (CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
set (CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/liberty/cmake)
# Dependencies
find_package (Ncursesw REQUIRED)
@ -26,7 +26,6 @@ find_package (PkgConfig REQUIRED)
find_package (Unistring REQUIRED)
pkg_check_modules (curl REQUIRED libcurl)
set (CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/liberty/cmake)
include (AddThreads)
find_package (Termo QUIET NO_MODULE)

17
cmake/FindNcursesw.cmake
View File

@ -1,17 +0,0 @@
# Public Domain
find_package (PkgConfig REQUIRED)
pkg_check_modules (NCURSESW QUIET ncursesw)
# OpenBSD doesn't provide a pkg-config file
set (required_vars NCURSESW_LIBRARIES)
if (NOT NCURSESW_FOUND)
find_library (NCURSESW_LIBRARIES NAMES ncursesw)
find_path (NCURSESW_INCLUDE_DIRS ncurses.h)
list (APPEND required_vars NCURSESW_INCLUDE_DIRS)
endif (NOT NCURSESW_FOUND)
include (FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS (NCURSESW DEFAULT_MSG ${required_vars})
mark_as_advanced (NCURSESW_LIBRARIES NCURSESW_INCLUDE_DIRS)

10
cmake/FindUnistring.cmake
View File

@ -1,10 +0,0 @@
# Public Domain
find_path (UNISTRING_INCLUDE_DIRS unistr.h)
find_library (UNISTRING_LIBRARIES NAMES unistring libunistring)
include (FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS (UNISTRING DEFAULT_MSG
UNISTRING_INCLUDE_DIRS UNISTRING_LIBRARIES)
mark_as_advanced (UNISTRING_LIBRARIES UNISTRING_INCLUDE_DIRS)

2
liberty

@ -1 +1 @@
Subproject commit dfc7ff57efee0608c652f81779ef45a1b5269abf
Subproject commit 084e964286bfcd13ee6a25a2ee35dfba9da1072e

361
nncmpp.c
View File

@ -64,45 +64,19 @@ enum
#define LIBERTY_WANT_PROTO_HTTP
#define LIBERTY_WANT_PROTO_MPD
#include "liberty/liberty.c"
#include "liberty/liberty-tui.c"
#include <locale.h>
#include <termios.h>
#ifndef TIOCGWINSZ
#include <sys/ioctl.h>
#endif // ! TIOCGWINSZ
#include <ncurses.h>
// ncurses is notoriously retarded for input handling, we need something
// different if only to receive mouse events reliably.
#include "termo.h"
// It is surprisingly hard to find a good library to handle Unicode shenanigans,
// and there's enough of those for it to be impractical to reimplement them.
//
// GLib ICU libunistring utf8proc
// Decently sized . . x x
// Grapheme breaks . x . x
// Character width x . x x
// Locale handling . . x .
// Liberal license . x . x
//
// Also note that the ICU API is icky and uses UTF-16 for its primary encoding.
//
// Currently we're chugging along with libunistring but utf8proc seems viable.
// Non-Unicode locales can mostly be handled with simple iconv like in sdtui.
// Similarly grapheme breaks can be guessed at using character width (a basic
// test here is Zalgo text).
//
// None of this is ever going to work too reliably anyway because terminals
// and Unicode don't go awfully well together. In particular, character cell
// devices have some problems with double-wide characters.
#include <unistr.h>
#include <uniwidth.h>
#include <uniconv.h>
#include <unicase.h>
// We need cURL to extract links from Internet stream playlists. It'd be way
// too much code to do this all by ourselves, and there's nothing better around.
@ -589,13 +563,6 @@ struct tab
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
struct attrs
{
short fg; ///< Foreground colour index
short bg; ///< Background colour index
chtype attrs; ///< Other attributes
};
enum player_state { PLAYER_STOPPED, PLAYER_PLAYING, PLAYER_PAUSED };
// Basically a container for most of the globals; no big sense in handing
@ -636,7 +603,7 @@ static struct app_context
// Data:
struct config config; ///< Program configuration
struct str_vector streams; ///< List of "name NUL URI NUL"
struct strv streams; ///< List of "name NUL URI NUL"
struct tab *help_tab; ///< Special help tab
struct tab *tabs; ///< All other tabs
@ -725,43 +692,6 @@ get_config_string (struct config_item *root, const char *key)
return item->value.string.str;
}
/// Load configuration for a color using a subset of git config colors
static void
app_load_color (struct config_item *subtree, const char *name, int id)
{
const char *value = get_config_string (subtree, name);
if (!value)
return;
struct str_vector v;
str_vector_init (&v);
cstr_split (value, " ", true, &v);
int colors = 0;
struct attrs attrs = { -1, -1, 0 };
for (char **it = v.vector; *it; it++)
{
char *end = NULL;
long n = strtol (*it, &end, 10);
if (*it != end && !*end && n >= SHRT_MIN && n <= SHRT_MAX)
{
if (colors == 0) attrs.fg = n;
if (colors == 1) attrs.bg = n;
colors++;
}
else if (!strcmp (*it, "bold")) attrs.attrs |= A_BOLD;
else if (!strcmp (*it, "dim")) attrs.attrs |= A_DIM;
else if (!strcmp (*it, "ul")) attrs.attrs |= A_UNDERLINE;
else if (!strcmp (*it, "blink")) attrs.attrs |= A_BLINK;
else if (!strcmp (*it, "reverse")) attrs.attrs |= A_REVERSE;
#ifdef A_ITALIC
else if (!strcmp (*it, "italic")) attrs.attrs |= A_ITALIC;
#endif // A_ITALIC
}
str_vector_free (&v);
g_ctx.attrs[id] = attrs;
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
static void
@ -778,8 +708,10 @@ load_config_colors (struct config_item *subtree, void *user_data)
// The attributes cannot be changed dynamically right now, so it doesn't
// make much sense to make use of "on_change" callbacks either.
// For simplicity, we should reload the entire table on each change anyway.
const char *value;
#define XX(name, config, fg_, bg_, attrs_) \
app_load_color (subtree, config, ATTRIBUTE_ ## name);
if ((value = get_config_string (subtree, config))) \
g_ctx.attrs[ATTRIBUTE_ ## name] = attrs_decode (value);
ATTRIBUTE_TABLE (XX)
#undef XX
}
@ -796,7 +728,7 @@ app_casecmp (const uint8_t *a, const uint8_t *b)
}
static int
str_vector_sort_utf8_cb (const void *a, const void *b)
strv_sort_utf8_cb (const void *a, const void *b)
{
return app_casecmp (*(const uint8_t **) a, *(const uint8_t **) b);
}
@ -817,11 +749,11 @@ load_config_streams (struct config_item *subtree, void *user_data)
print_warning ("`%s': stream URIs must be strings", iter.link->key);
else
{
str_vector_add_owned (&g_ctx.streams, xstrdup_printf ("%s%c%s",
strv_append_owned (&g_ctx.streams, xstrdup_printf ("%s%c%s",
iter.link->key, 0, item->value.string.str));
}
qsort (g_ctx.streams.vector, g_ctx.streams.len,
sizeof *g_ctx.streams.vector, str_vector_sort_utf8_cb);
sizeof *g_ctx.streams.vector, strv_sort_utf8_cb);
}
static void
@ -876,7 +808,7 @@ app_init_context (void)
poller_init (&g_ctx.poller);
mpd_client_init (&g_ctx.client, &g_ctx.poller);
config_init (&g_ctx.config);
str_vector_init (&g_ctx.streams);
strv_init (&g_ctx.streams);
item_list_init (&g_ctx.playlist);
// This is also approximately what libunistring does internally,
@ -929,7 +861,7 @@ app_free_context (void)
{
mpd_client_free (&g_ctx.client);
str_map_free (&g_ctx.playback_info);
str_vector_free (&g_ctx.streams);
strv_free (&g_ctx.streams);
item_list_free (&g_ctx.playlist);
config_free (&g_ctx.config);
@ -967,179 +899,6 @@ app_is_character_in_locale (ucs4_t ch)
return true;
}
// --- Terminal output ---------------------------------------------------------
// Necessary abstraction to simplify aligned, formatted character output
struct row_char
{
ucs4_t c; ///< Unicode codepoint
chtype attrs; ///< Special attributes
int width; ///< How many cells this takes
};
struct row_buffer
{
struct row_char *chars; ///< Characters
size_t chars_len; ///< Character count
size_t chars_alloc; ///< Characters allocated
int total_width; ///< Total width of all characters
};
static void
row_buffer_init (struct row_buffer *self)
{
memset (self, 0, sizeof *self);
self->chars = xcalloc (sizeof *self->chars, (self->chars_alloc = 256));
}
static void
row_buffer_free (struct row_buffer *self)
{
free (self->chars);
}
/// Replace invalid chars and push all codepoints to the array w/ attributes.
static void
row_buffer_append (struct row_buffer *self, const char *str, chtype attrs)
{
// The encoding is only really used internally for some corner cases
const char *encoding = locale_charset ();
// Note that this function is a hotspot, try to keep it decently fast
struct row_char current = { .attrs = attrs };
struct row_char invalid = { .attrs = attrs, .c = '?', .width = 1 };
const uint8_t *next = (const uint8_t *) str;
while ((next = u8_next (&current.c, next)))
{
if (self->chars_len >= self->chars_alloc)
self->chars = xreallocarray (self->chars,
sizeof *self->chars, (self->chars_alloc <<= 1));
current.width = uc_width (current.c, encoding);
if (current.width < 0 || !app_is_character_in_locale (current.c))
current = invalid;
self->chars[self->chars_len++] = current;
self->total_width += current.width;
}
}
static void
row_buffer_addv (struct row_buffer *self, const char *s, ...)
ATTRIBUTE_SENTINEL;
static void
row_buffer_addv (struct row_buffer *self, const char *s, ...)
{
va_list ap;
va_start (ap, s);
while (s)
{
row_buffer_append (self, s, va_arg (ap, chtype));
s = va_arg (ap, const char *);
}
va_end (ap);
}
/// Pop as many codepoints as needed to free up "space" character cells.
/// Given the suffix nature of combining marks, this should work pretty fine.
static int
row_buffer_pop_cells (struct row_buffer *self, int space)
{
int made = 0;
while (self->chars_len && made < space)
made += self->chars[--self->chars_len].width;
self->total_width -= made;
return made;
}
static void
row_buffer_space (struct row_buffer *self, int width, chtype attrs)
{
if (width < 0)
return;
while (self->chars_len + width >= self->chars_alloc)
self->chars = xreallocarray (self->chars,
sizeof *self->chars, (self->chars_alloc <<= 1));
struct row_char space = { .attrs = attrs, .c = ' ', .width = 1 };
self->total_width += width;
while (width-- > 0)
self->chars[self->chars_len++] = space;
}
static void
row_buffer_ellipsis (struct row_buffer *self, int target)
{
if (self->total_width <= target
|| !row_buffer_pop_cells (self, self->total_width - target))
return;
// We use attributes from the last character we've removed,
// assuming that we don't shrink the array (and there's no real need)
ucs4_t ellipsis = L'…';
if (app_is_character_in_locale (ellipsis))
{
if (self->total_width >= target)
row_buffer_pop_cells (self, 1);
if (self->total_width + 1 <= target)
row_buffer_append (self, "…", self->chars[self->chars_len].attrs);
}
else if (target >= 3)
{
if (self->total_width >= target)
row_buffer_pop_cells (self, 3);
if (self->total_width + 3 <= target)
row_buffer_append (self, "...", self->chars[self->chars_len].attrs);
}
}
static void
row_buffer_align (struct row_buffer *self, int target, chtype attrs)
{
row_buffer_ellipsis (self, target);
row_buffer_space (self, target - self->total_width, attrs);
}
static void
row_buffer_print (uint32_t *ucs4, chtype attrs)
{
// This assumes that we can reset the attribute set without consequences
char *str = u32_strconv_to_locale (ucs4);
if (str)
{
attrset (attrs);
addstr (str);
attrset (0);
free (str);
}
}
static void
row_buffer_flush (struct row_buffer *self)
{
if (!self->chars_len)
return;
// We only NUL-terminate the chunks because of the libunistring API
uint32_t chunk[self->chars_len + 1], *insertion_point = chunk;
for (size_t i = 0; i < self->chars_len; i++)
{
struct row_char *iter = self->chars + i;
if (i && iter[0].attrs != iter[-1].attrs)
{
row_buffer_print (chunk, iter[-1].attrs);
insertion_point = chunk;
}
*insertion_point++ = iter->c;
*insertion_point = 0;
}
row_buffer_print (chunk, self->chars[self->chars_len - 1].attrs);
}
// --- Rendering ---------------------------------------------------------------
// TODO: rewrite this so that it's fine-grained but not complicated
@ -1208,17 +967,11 @@ app_draw_song_info (void)
row_buffer_init (&buf);
if (artist)
{
if (buf.total_width)
row_buffer_append (&buf, " ", a_normal);
row_buffer_addv (&buf, "by ", a_normal, artist, a_highlight, NULL);
}
row_buffer_append_args (&buf, " by " + !buf.total_width, a_normal,
artist, a_highlight, NULL);
if (album)
{
if (buf.total_width)
row_buffer_append (&buf, " ", a_normal);
row_buffer_addv (&buf, "from ", a_normal, album, a_highlight, NULL);
}
row_buffer_append_args (&buf, " from " + !buf.total_width, a_normal,
album, a_highlight, NULL);
app_flush_header (&buf, a_normal);
}
@ -1289,15 +1042,15 @@ app_draw_status (void)
row_buffer_init (&buf);
bool stopped = g_ctx.state == PLAYER_STOPPED;
chtype a_song_action = stopped ? a_normal : a_highlight;
row_buffer_addv (&buf, "<<", a_song_action, " ", a_normal, NULL);
if (g_ctx.state == PLAYER_PLAYING)
row_buffer_addv (&buf, "||", a_highlight, " ", a_normal, NULL);
else
row_buffer_addv (&buf, "|>", a_highlight, " ", a_normal, NULL);
row_buffer_addv (&buf, "[]", a_song_action, " ", a_normal, NULL);
row_buffer_addv (&buf, ">>", a_song_action, " ", a_normal, NULL);
const char *toggle = g_ctx.state == PLAYER_PLAYING ? "|>" : "||";
row_buffer_append_args (&buf,
"<<", a_song_action, " ", a_normal,
toggle, a_highlight, " ", a_normal,
"[]", a_song_action, " ", a_normal,
">>", a_song_action, " ", a_normal,
NULL);
if (stopped)
row_buffer_append (&buf, "Stopped", a_normal);
@ -1998,7 +1751,7 @@ current_tab_on_item_draw (size_t item_index, struct row_buffer *buffer,
chtype attrs = (int) item_index == g_ctx.song ? A_BOLD : 0;
if (artist && title)
row_buffer_addv (buffer,
row_buffer_append_args (buffer,
artist, attrs, " - ", attrs, title, attrs, NULL);
else
row_buffer_append (buffer, compact_map_find (map, "file"), attrs);
@ -2068,7 +1821,7 @@ static struct
{
struct tab super; ///< Parent class
struct str path; ///< Current path
struct str_vector items; ///< Current items (type, name, path)
struct strv items; ///< Current items (type, name, path)
}
g_library_tab;
@ -2092,7 +1845,7 @@ struct library_tab_item
static void
library_tab_add (int type, const char *name, const char *path)
{
str_vector_add_owned (&g_library_tab.items,
strv_append_owned (&g_library_tab.items,
xstrdup_printf ("%c%s%c%s", type, name, 0, path));
}
@ -2117,14 +1870,16 @@ library_tab_on_item_draw (size_t item_index, struct row_buffer *buffer,
struct library_tab_item x =
library_tab_resolve (g_library_tab.items.vector[item_index]);
const char *prefix, *name;
switch (x.type)
{
case LIBRARY_ROOT: row_buffer_append (buffer, "/", 0); break;
case LIBRARY_UP: row_buffer_append (buffer, "/..", 0); break;
case LIBRARY_DIR: row_buffer_addv (buffer, "/", 0, x.name, 0, NULL); break;
case LIBRARY_FILE: row_buffer_addv (buffer, " ", 0, x.name, 0, NULL); break;
case LIBRARY_ROOT: prefix = "/"; name = ""; break;
case LIBRARY_UP: prefix = "/"; name = ".."; break;
case LIBRARY_DIR: prefix = "/"; name = x.name; break;
case LIBRARY_FILE: prefix = " "; name = x.name; break;
default: hard_assert (!"invalid item type");
}
row_buffer_append_args (buffer, prefix, 0, name, 0, NULL);
}
static char
@ -2161,13 +1916,13 @@ library_tab_compare (char **a, char **b)
static void
library_tab_on_data (const struct mpd_response *response,
const struct str_vector *data, void *user_data)
const struct strv *data, void *user_data)
{
(void) user_data;
if (!response->success)
return;
str_vector_reset (&g_library_tab.items);
strv_reset (&g_library_tab.items);
struct str *path = &g_library_tab.path;
if (path->len)
@ -2202,7 +1957,7 @@ library_tab_on_data (const struct mpd_response *response,
}
str_map_free (&map);
struct str_vector *items = &g_library_tab.items;
struct strv *items = &g_library_tab.items;
qsort (items->vector, items->len, sizeof *items->vector,
(int (*) (const void *, const void *)) library_tab_compare);
@ -2280,7 +2035,7 @@ static struct tab *
library_tab_init (void)
{
str_init (&g_library_tab.path);
str_vector_init (&g_library_tab.items);
strv_init (&g_library_tab.items);
struct tab *super = &g_library_tab.super;
tab_init (super, "Library");
@ -2316,11 +2071,11 @@ is_content_type (const char *content_type,
static void
streams_tab_parse_playlist (const char *playlist, const char *content_type,
struct str_vector *out)
struct strv *out)
{
// We accept a lot of very broken stuff because this is the real world
struct str_vector lines;
str_vector_init (&lines);
struct strv lines;
strv_init (&lines);
cstr_split (playlist, "\r\n", true, &lines);
// Since this excludes '"', it should even work for XMLs (w/o entities)
@ -2343,20 +2098,20 @@ streams_tab_parse_playlist (const char *playlist, const char *content_type,
char *target = xstrndup (lines.vector[i] + groups[1].rm_so,
groups[1].rm_eo - groups[1].rm_so);
if (utf8_validate (target, strlen (target)))
str_vector_add_owned (out, target);
strv_append_owned (out, target);
else
{
str_vector_add_owned (out, latin1_to_utf8 (target));
strv_append_owned (out, latin1_to_utf8 (target));
free (target);
}
}
regex_free (re);
str_vector_free (&lines);
strv_free (&lines);
}
static bool
streams_tab_extract_links (struct str *data, const char *content_type,
struct str_vector *out)
struct strv *out)
{
// Since playlists are also "audio/*", this seems like a sane thing to do
for (size_t i = 0; i < data->len; i++)
@ -2414,15 +2169,15 @@ streams_tab_on_downloaded (CURLMsg *msg, struct poller_curl_task *task)
if (self->replace)
mpd_client_send_command (c, "clear", NULL);
struct str_vector links;
str_vector_init (&links);
struct strv links;
strv_init (&links);
if (!streams_tab_extract_links (&self->data, type, &links))
str_vector_add (&links, uri);
strv_append (&links, uri);
for (size_t i = 0; i < links.len; i++)
mpd_client_send_command (c, "add", links.vector[i], NULL);
str_vector_free (&links);
strv_free (&links);
mpd_client_list_end (c);
mpd_client_add_task (c, NULL, NULL);
mpd_client_idle (c, 0);
@ -2545,8 +2300,8 @@ streams_tab_init (void)
static struct
{
struct tab super; ///< Parent class
struct str_vector keys; ///< Data keys
struct str_vector values; ///< Data values
struct strv keys; ///< Data keys
struct strv values; ///< Data values
}
g_info_tab;
@ -2563,7 +2318,7 @@ info_tab_on_item_draw (size_t item_index, struct row_buffer *buffer, int width)
// - Debug -- it'd take up considerably more space
// However so far we're only showing show key-value pairs.
row_buffer_addv (buffer,
row_buffer_append_args (buffer,
g_info_tab.keys.vector[item_index], A_BOLD, ":", A_BOLD, NULL);
row_buffer_space (buffer, 8 - buffer->total_width, 0);
row_buffer_append (buffer, g_info_tab.values.vector[item_index], 0);
@ -2575,16 +2330,16 @@ info_tab_add (compact_map_t data, const char *field)
const char *value = compact_map_find (data, field);
if (!value) value = "";
str_vector_add (&g_info_tab.keys, field);
str_vector_add (&g_info_tab.values, value);
strv_append (&g_info_tab.keys, field);
strv_append (&g_info_tab.values, value);
g_info_tab.super.item_count++;
}
static void
info_tab_update (void)
{
str_vector_reset (&g_info_tab.keys);
str_vector_reset (&g_info_tab.values);
strv_reset (&g_info_tab.keys);
strv_reset (&g_info_tab.values);
g_info_tab.super.item_count = 0;
compact_map_t map;
@ -2603,8 +2358,8 @@ info_tab_update (void)
static struct tab *
info_tab_init (void)
{
str_vector_init (&g_info_tab.keys);
str_vector_init (&g_info_tab.values);
strv_init (&g_info_tab.keys);
strv_init (&g_info_tab.values);
struct tab *super = &g_info_tab.super;
tab_init (super, "Info");
@ -2778,7 +2533,7 @@ mpd_update_playback_state (void)
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
static void
mpd_process_info (const struct str_vector *data)
mpd_process_info (const struct strv *data)
{
struct str_map map;
str_map_init (&map);
@ -2818,7 +2573,7 @@ mpd_process_info (const struct str_vector *data)
static void
mpd_on_info_response (const struct mpd_response *response,
const struct str_vector *data, void *user_data)
const struct strv *data, void *user_data)
{
(void) user_data;
@ -2902,7 +2657,7 @@ mpd_queue_reconnect (void)
static void
mpd_on_password_response (const struct mpd_response *response,
const struct str_vector *data, void *user_data)
const struct strv *data, void *user_data)
{
(void) data;
(void) user_data;