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screen: Implement :swap(s) 

This allows to change the order in which screens appear in our list of
screens.

Fixes: https://github.com/awesomeWM/awesome/issues/1122
Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
Uli Schlachter 2016-10-23 15:01:12 +02:00
parent c347c0a54c
commit 3189996507
1 changed files with 48 additions and 0 deletions
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48
objects/screen.c
View File

@ -83,6 +83,12 @@
* @signal .list
*/
/** When 2 screens are swapped
* @tparam screen screen The other screen
* @tparam boolean is_source If self is the source or the destination of the swap
* @signal .swapped
*/
/**
* The primary screen.
*
@ -1159,6 +1165,47 @@ luaA_screen_fake_resize(lua_State *L)
return 0;
}
/** Swap a screen with another one in global screen list.
* @client s A screen to swap with.
* @function swap
*/
static int
luaA_screen_swap(lua_State *L)
{
screen_t *s = luaA_checkudata(L, 1, &screen_class);
screen_t *swap = luaA_checkudata(L, 2, &screen_class);
if(s != swap)
{
screen_t **ref_s = NULL, **ref_swap = NULL;
foreach(item, globalconf.screens)
{
if(*item == s)
ref_s = item;
else if(*item == swap)
ref_swap = item;
if(ref_s && ref_swap)
break;
}
/* swap ! */
*ref_s = swap;
*ref_swap = s;
luaA_class_emit_signal(L, &screen_class, "list", 0);
luaA_object_push(L, swap);
lua_pushboolean(L, true);
luaA_object_emit_signal(L, -4, "swapped", 2);
luaA_object_push(L, swap);
luaA_object_push(L, s);
lua_pushboolean(L, false);
luaA_object_emit_signal(L, -3, "swapped", 2);
}
return 0;
}
void
screen_class_setup(lua_State *L)
{
@ -1179,6 +1226,7 @@ screen_class_setup(lua_State *L)
LUA_CLASS_META
{ "fake_remove", luaA_screen_fake_remove },
{ "fake_resize", luaA_screen_fake_resize },
{ "swap", luaA_screen_swap },
{ NULL, NULL },
};