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Clean up tab code, prepare for custom handlers

This commit is contained in:
Přemysl Eric Janouch 2016-10-05 05:58:19 +02:00
parent 2c7e8e3311
commit 53ac2cf2c0
Signed by: p
GPG Key ID: B715679E3A361BE6
1 changed files with 24 additions and 39 deletions
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nncmpp.c
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@ -156,13 +156,14 @@ clock_msec (clockid_t clock)
struct tab;
struct row_buffer;
enum user_action;
/// Try to handle an event in the tab
typedef bool (*tab_event_fn) (struct tab *self, termo_key_t *event);
/// Try to handle an action in the tab
typedef bool (*tab_action_fn) (enum user_action action);
/// Draw an item to the screen using the row buffer API
typedef void (*tab_item_draw_fn) (struct tab *self,
unsigned item_index, struct row_buffer *buffer, int width);
typedef void (*tab_item_draw_fn)
(size_t item_index, struct row_buffer *buffer, int width);
struct tab
{
@ -174,7 +175,7 @@ struct tab
// Implementation:
// TODO: free() callback?
tab_event_fn on_event; ///< Event handler callback
tab_action_fn on_action; ///< User action handler callback
tab_item_draw_fn on_item_draw; ///< Item draw callback
// Provided by tab owner:
@ -1056,7 +1057,7 @@ app_draw_view (void)
struct row_buffer buf;
row_buffer_init (&buf);
tab->on_item_draw (tab, item_index, &buf, view_width);
tab->on_item_draw (item_index, &buf, view_width);
if (item_index == tab->item_selected)
{
// Make it so that the selection color always wins
@ -1238,8 +1239,12 @@ g_user_actions[] =
static bool
app_process_user_action (enum user_action action)
{
struct mpd_client *c = &g_ctx.client;
// First let the tab try to handle this
struct tab *tab = g_ctx.active_tab;
if (tab->on_action && tab->on_action (action))
return true;
struct mpd_client *c = &g_ctx.client;
switch (action)
{
case USER_ACTION_QUIT:
@ -1337,7 +1342,8 @@ app_process_user_action (enum user_action action)
case USER_ACTION_NONE:
return true;
default:
hard_assert (!"unhandled user action");
beep ();
return true;
}
return true;
}
@ -1513,12 +1519,10 @@ app_process_termo_event (termo_key_t *event)
// TODO: play stream on Enter (just send a command, presumably)
static void
streams_tab_on_item_draw (struct tab *self, unsigned item_index,
struct row_buffer *buffer, int width)
streams_tab_on_item_draw (size_t item_index, struct row_buffer *buffer,
int width)
{
(void) self;
(void) width;
row_buffer_append (buffer, g_ctx.streams.vector[item_index], 0);
}
@ -1543,10 +1547,8 @@ static struct
g_info_tab;
static void
info_tab_on_item_draw (struct tab *self, unsigned item_index,
struct row_buffer *buffer, int width)
info_tab_on_item_draw (size_t item_index, struct row_buffer *buffer, int width)
{
(void) self;
(void) width;
// It looks like we could do with a generic list structure that just
@ -1600,25 +1602,14 @@ info_tab_init (void)
struct tab *super = &g_info_tab.super;
tab_init (super, "Info");
super->on_item_draw = info_tab_on_item_draw;
super->item_count = 0;
super->item_selected = 0;
return super;
}
// --- Help tab ----------------------------------------------------------------
// TODO: either find something else to put in here or remove the wrapper struct
static struct
{
struct tab super; ///< Parent class
}
g_help_tab;
static void
help_tab_on_item_draw (struct tab *self, unsigned item_index,
struct row_buffer *buffer, int width)
help_tab_on_item_draw (size_t item_index, struct row_buffer *buffer, int width)
{
(void) self;
(void) width;
// TODO: group them the other way around for clarity
@ -1633,12 +1624,11 @@ help_tab_on_item_draw (struct tab *self, unsigned item_index,
static struct tab *
help_tab_init (void)
{
struct tab *super = &g_help_tab.super;
tab_init (super, "Help");
super->on_item_draw = help_tab_on_item_draw;
super->item_count = N_ELEMENTS (g_default_bindings);
super->item_selected = 0;
return super;
static struct tab super;
tab_init (&super, "Help");
super.on_item_draw = help_tab_on_item_draw;
super.item_count = N_ELEMENTS (g_default_bindings);
return &super;
}
// --- Debug tab ---------------------------------------------------------------
@ -1660,11 +1650,8 @@ static struct
g_debug_tab;
static void
debug_tab_on_item_draw (struct tab *self, unsigned item_index,
struct row_buffer *buffer, int width)
debug_tab_on_item_draw (size_t item_index, struct row_buffer *buffer, int width)
{
(void) self;
hard_assert (item_index <= g_debug_tab.super.item_count);
struct debug_item *item = &g_debug_tab.items[item_index];
@ -1718,8 +1705,6 @@ debug_tab_init (void)
struct tab *super = &g_debug_tab.super;
tab_init (super, "Debug");
super->on_item_draw = debug_tab_on_item_draw;
super->item_count = 0;
super->item_selected = 0;
return super;
}