From a15de8f9a931e905d1a15ba269cd6997486a632b Mon Sep 17 00:00:00 2001
From: tmk <nobody@nowhere>
Date: Fri, 15 Feb 2013 15:27:19 +0900
Subject: [PATCH] Fix switch_default_layer command

---
 common/command.c     | 22 ++++++++++++----------
 common/layer_stack.c | 18 +++++++++++++-----
 common/layer_stack.h |  1 +
 3 files changed, 26 insertions(+), 15 deletions(-)

diff --git a/common/command.c b/common/command.c
index 4c874b10..c5b9f043 100644
--- a/common/command.c
+++ b/common/command.c
@@ -27,6 +27,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "keyboard.h"
 #include "bootloader.h"
 #include "command.h"
+#include "layer_stack.h"
+
 #ifdef MOUSEKEY_ENABLE
 #include "mousekey.h"
 #endif
@@ -53,7 +55,7 @@ static void mousekey_console_help(void);
 #endif
 
 static uint8_t numkey2num(uint8_t code);
-static void switch_layer(uint8_t layer);
+static void switch_default_layer(uint8_t layer);
 
 
 typedef enum { ONESHOT, CONSOLE, MOUSEKEY } cmdstate_t;
@@ -264,16 +266,13 @@ static bool command_common(uint8_t code)
         case KC_ESC:
         case KC_GRV:
         case KC_0:
-            clear_keyboard();
-            switch_layer(0);
+            switch_default_layer(0);
             break;
         case KC_1 ... KC_9:
-            clear_keyboard();
-            switch_layer((code - KC_1) + 1);
+            switch_default_layer((code - KC_1) + 1);
             break;
         case KC_F1 ... KC_F12:
-            clear_keyboard();
-            switch_layer((code - KC_F1) + 1);
+            switch_default_layer((code - KC_F1) + 1);
             break;
         default:
             print("?");
@@ -542,11 +541,14 @@ static uint8_t numkey2num(uint8_t code)
     return 0;
 }
 
-static void switch_layer(uint8_t layer)
+static void switch_default_layer(uint8_t layer)
 {
     print_val_hex8(current_layer);
     print_val_hex8(default_layer);
-    default_layer = layer;
-    current_layer = 0;
     print("switch to "); print_val_hex8(layer);
+
+    default_layer = layer;
+    current_layer = 0;  /* 0 means default_layer */
+    layer_stack_clear();
+    clear_keyboard();
 }
diff --git a/common/layer_stack.c b/common/layer_stack.c
index 07c84870..0076bf77 100644
--- a/common/layer_stack.c
+++ b/common/layer_stack.c
@@ -9,13 +9,23 @@ static uint8_t top_layer = 0;
 /* [0] always works as sentinel and not used for store.*/
 static layer_item_t layer_stack[LAYER_STACK_SIZE] = {};
 
+
+void layer_stack_clear(void)
+{
+    for (uint8_t i = 0; i < LAYER_STACK_SIZE; i++) {
+        layer_stack[i] = (layer_item_t){ .layer = 0,
+                                         .next = 0,
+                                         .used = false };
+    }
+}
+
 bool layer_stack_push(uint8_t layer)
 {
     for (uint8_t i = 1; i < LAYER_STACK_SIZE; i++) {
         if (!layer_stack[i].used) {
             layer_stack[i] = (layer_item_t){ .layer = layer,
-                                              .next = top_layer,
-                                              .used = true };
+                                             .next = top_layer,
+                                             .used = true };
             top_layer = i;
             return true;
         }
@@ -73,14 +83,12 @@ void layer_stack_debug(void)
     layer_item_t item = layer_stack[top_layer];
     while (item.used) {
         debug_dec(item.layer);
-        debug("["); debug_dec(item.next); debug("]");
+        debug("["); debug_dec(item.next); debug("] ");
         item = layer_stack[item.next];
     }
     debug("\n");
 }
 
-
-
 action_t layer_stack_get_action(key_t key)
 {
     action_t action;
diff --git a/common/layer_stack.h b/common/layer_stack.h
index c88eaffc..25bf37a5 100644
--- a/common/layer_stack.h
+++ b/common/layer_stack.h
@@ -32,6 +32,7 @@ typedef struct {
 } layer_item_t;
 
 
+void layer_stack_clear(void);
 bool layer_stack_push(uint8_t layer);
 bool layer_stack_pop(void);
 bool layer_stack_remove(uint8_t layer);