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Implement sequential multiselect for Library tab

This commit is contained in:
Přemysl Eric Janouch 2018-10-20 11:17:04 +02:00
parent 3c09a16a02
commit 804f051d66
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 106 additions and 12 deletions
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nncmpp.c
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@ -35,6 +35,10 @@
XX( ODD, "odd", -1, -1, 0 ) \
XX( DIRECTORY, "directory", -1, -1, 0 ) \
XX( SELECTION, "selection", -1, -1, A_REVERSE ) \
/* Cyan is good with both black and white.
* Can't use A_REVERSE because bold'd be bright.
* Unfortunately ran out of B&W attributes. */ \
XX( MULTISELECT,"multiselect",-1, 6, 0 ) \
XX( SCROLLBAR, "scrollbar", -1, -1, 0 ) \
/* These are for debugging only */ \
XX( WARNING, "warning", 3, -1, 0 ) \
@ -569,6 +573,7 @@ struct tab
int item_top; ///< Index of the topmost item
int item_selected; ///< Index of the selected item
int item_mark; ///< Multiselect second point index
};
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@ -663,6 +668,7 @@ tab_init (struct tab *self, const char *name)
// and we'd need to filter it first to replace invalid chars with '?'
self->name_width = u8_strwidth ((uint8_t *) self->name, locale_charset ());
self->item_selected = 0;
self->item_mark = -1;
}
static void
@ -671,6 +677,17 @@ tab_free (struct tab *self)
free (self->name);
}
static struct tab_range { int from, upto; }
tab_selection_range (struct tab *self)
{
if (self->item_selected < 0 || !self->item_count)
return (struct tab_range) { -1, -1 };
if (self->item_mark < 0)
return (struct tab_range) { self->item_selected, self->item_selected };
return (struct tab_range) { MIN (self->item_selected, self->item_mark),
MAX (self->item_selected, self->item_mark) };
}
// --- Configuration -----------------------------------------------------------
static struct config_schema g_config_settings[] =
@ -1263,8 +1280,16 @@ app_draw_view (void)
{
int item_index = tab->item_top + row;
int row_attrs = (item_index & 1) ? APP_ATTR (ODD) : APP_ATTR (EVEN);
bool override_colors = true;
if (item_index == tab->item_selected)
row_attrs = APP_ATTR (SELECTION);
else if (tab->item_mark > -1 &&
((item_index >= tab->item_mark && item_index <= tab->item_selected)
|| (item_index >= tab->item_selected && item_index <= tab->item_mark)))
row_attrs = APP_ATTR (MULTISELECT);
else
override_colors = false;
struct row_buffer buf = row_buffer_make ();
tab->on_item_draw (item_index, &buf, view_width);
@ -1274,7 +1299,7 @@ app_draw_view (void)
for (size_t i = 0; i < buf.chars_len; i++)
{
chtype *attrs = &buf.chars[i].attrs;
if (item_index == tab->item_selected)
if (override_colors)
*attrs = (*attrs & ~(A_COLOR | A_REVERSE)) | row_attrs;
else if ((*attrs & A_COLOR) && (row_attrs & A_COLOR))
*attrs |= (row_attrs & ~A_COLOR);
@ -1323,7 +1348,15 @@ static void
app_write_mpd_status (struct row_buffer *buf)
{
struct str_map *map = &g.playback_info;
if (str_map_find (map, "updating_db"))
if (g.active_tab->item_mark > -1)
{
struct tab_range r = tab_selection_range (g.active_tab);
char *msg = xstrdup_printf (r.from == r.upto
? "Selected %d item" : "Selected %d items", r.upto - r.from + 1);
row_buffer_append (buf, msg, APP_ATTR (HIGHLIGHT));
free (msg);
}
else if (str_map_find (map, "updating_db"))
row_buffer_append (buf, "Updating database...", APP_ATTR (NORMAL));
else
app_write_mpd_status_playlist (buf);
@ -1521,6 +1554,7 @@ app_goto_tab (int tab_index)
XX( CHOOSE, "Choose item" ) \
XX( DELETE, "Delete item" ) \
XX( UP, "Go up a level" ) \
XX( MULTISELECT, "Toggle multiselect" ) \
\
XX( SCROLL_UP, "Scroll up" ) \
XX( SCROLL_DOWN, "Scroll down" ) \
@ -1670,13 +1704,25 @@ app_process_action (enum action action)
// First let the tab try to handle this
struct tab *tab = g.active_tab;
if (tab->on_action && tab->on_action (action))
{
tab->item_mark = -1;
app_invalidate ();
return true;
}
switch (action)
{
case ACTION_NONE:
return true;
case ACTION_QUIT:
// It is a pseudomode, avoid surprising the user
if (tab->item_mark > -1)
{
tab->item_mark = -1;
app_invalidate ();
return true;
}
app_quit ();
return true;
case ACTION_REDRAW:
@ -1691,6 +1737,18 @@ app_process_action (enum action action)
default:
return false;
case ACTION_MULTISELECT:
if (!tab->can_multiselect
|| !tab->item_count || tab->item_selected < 0)
return false;
app_invalidate ();
if (tab->item_mark > -1)
tab->item_mark = -1;
else
tab->item_mark = tab->item_selected;
return true;
case ACTION_LAST_TAB:
if (!g.last_tab)
return false;
@ -1943,6 +2001,7 @@ g_normal_defaults[] =
{ "Enter", ACTION_CHOOSE },
{ "Delete", ACTION_DELETE },
{ "Backspace", ACTION_UP },
{ "v", ACTION_MULTISELECT },
{ "a", ACTION_MPD_ADD },
{ "r", ACTION_MPD_REPLACE },
{ ":", ACTION_MPD_COMMAND },
@ -2187,6 +2246,7 @@ current_tab_init (void)
{
struct tab *super = &g_current_tab;
tab_init (super, "Current");
// TODO: implement multiselect, set can_multiselect to true
super->on_action = current_tab_on_action;
super->on_item_draw = current_tab_on_item_draw;
return super;
@ -2412,6 +2472,9 @@ library_tab_on_data (const struct mpd_response *response,
(int (*) (const void *, const void *)) library_tab_compare);
g_library_tab.super.item_count = items->len;
// XXX: this unmarks even if just the database updates
g_library_tab.super.item_mark = -1;
// Don't force the selection visible when there's no need to touch it
if (g_library_tab.super.item_selected >= (int) items->len)
app_move_selection (0);
@ -2432,22 +2495,37 @@ library_tab_reload (const char *new_path)
mpd_client_idle (c, 0);
}
static bool
library_tab_is_range_playable (struct tab_range range)
{
for (int i = range.from; i <= range.upto; i++)
{
struct library_tab_item x =
library_tab_resolve (g_library_tab.items.vector[i]);
if (x.type == LIBRARY_DIR || x.type == LIBRARY_FILE)
return true;
}
return false;
}
static bool
library_tab_on_action (enum action action)
{
struct tab *self = g.active_tab;
if (self->item_selected < 0 || !self->item_count)
return false;
struct mpd_client *c = &g.client;
if (c->state != MPD_CONNECTED)
struct tab_range range = tab_selection_range (&g_library_tab.super);
if (range.from < 0 || c->state != MPD_CONNECTED)
return false;
struct library_tab_item x =
library_tab_resolve (g_library_tab.items.vector[self->item_selected]);
library_tab_resolve (g_library_tab.items.vector[range.from]);
switch (action)
{
case ACTION_CHOOSE:
// I can't think of a reasonable way of handling that
if (range.from != range.upto)
break;
switch (x.type)
{
case LIBRARY_ROOT:
@ -2468,26 +2546,41 @@ library_tab_on_action (enum action action)
return parent != NULL;
}
case ACTION_MPD_REPLACE:
if (x.type != LIBRARY_DIR && x.type != LIBRARY_FILE)
if (!library_tab_is_range_playable (range))
break;
// Clears the playlist (which stops playback), add what user wanted
// to replace it with, and eventually restore playback;
// I can't think of a reliable alternative that omits the "play"
mpd_client_list_begin (c);
mpd_client_send_command (c, "clear", NULL);
for (int i = range.from; i <= range.upto; i++)
{
struct library_tab_item x =
library_tab_resolve (g_library_tab.items.vector[i]);
if (x.type == LIBRARY_DIR || x.type == LIBRARY_FILE)
mpd_client_send_command (c, "add", x.path, NULL);
}
if (g.state == PLAYER_PLAYING)
mpd_client_send_command (c, "play", NULL);
mpd_client_list_end (c);
mpd_client_add_task (c, mpd_on_simple_response, NULL);
mpd_client_idle (c, 0);
return true;
case ACTION_MPD_ADD:
if (x.type != LIBRARY_DIR && x.type != LIBRARY_FILE)
if (!library_tab_is_range_playable (range))
break;
return MPD_SIMPLE ("add", x.path);
for (int i = range.from; i <= range.upto; i++)
{
struct library_tab_item x =
library_tab_resolve (g_library_tab.items.vector[i]);
if (x.type == LIBRARY_DIR || x.type == LIBRARY_FILE)
MPD_SIMPLE ("add", x.path);
}
return true;
default:
break;
}
@ -2502,6 +2595,7 @@ library_tab_init (void)
struct tab *super = &g_library_tab.super;
tab_init (super, "Library");
super->can_multiselect = true;
super->on_action = library_tab_on_action;
super->on_item_draw = library_tab_on_item_draw;
return super;