From e67c712f31a577958a1149272a4b7ffbed3ba94e Mon Sep 17 00:00:00 2001
From: Michael Stapelberg <michael@stapelberg.de>
Date: Mon, 31 May 2010 00:11:11 +0200
Subject: [PATCH] cleanup: introduce CT_WORKSPACE as type to avoid having to
 check parent->type

---
 include/data.h  |  2 +-
 src/con.c       |  4 ++--
 src/tree.c      | 14 ++++++++------
 src/workspace.c |  1 +
 4 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/include/data.h b/include/data.h
index bdfcbcc3..22884aa7 100644
--- a/include/data.h
+++ b/include/data.h
@@ -256,7 +256,7 @@ struct Match {
 
 struct Con {
     bool mapped;
-    enum { CT_ROOT = 0, CT_OUTPUT = 1, CT_CON = 2, CT_FLOATING_CON = 3 } type;
+    enum { CT_ROOT = 0, CT_OUTPUT = 1, CT_CON = 2, CT_FLOATING_CON = 3, CT_WORKSPACE = 4 } type;
     orientation_t orientation;
     struct Con *parent;
     /* parent before setting it to floating */
diff --git a/src/con.c b/src/con.c
index 36070849..efd0a82a 100644
--- a/src/con.c
+++ b/src/con.c
@@ -107,7 +107,7 @@ bool con_is_leaf(Con *con) {
  */
 bool con_accepts_window(Con *con) {
     /* 1: workspaces never accept direct windows */
-    if (con->parent->type == CT_OUTPUT)
+    if (con->type == CT_WORKSPACE)
         return false;
 
     /* TODO: if this is a swallowing container, we need to check its max_clients */
@@ -135,7 +135,7 @@ Con *con_get_output(Con *con) {
  */
 Con *con_get_workspace(Con *con) {
     Con *result = con;
-    while (result != NULL && result->parent->type != CT_OUTPUT)
+    while (result != NULL && result->type != CT_WORKSPACE)
         result = result->parent;
     assert(result != NULL);
     return result;
diff --git a/src/tree.c b/src/tree.c
index d8fc9f4a..5a3a7613 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -71,6 +71,7 @@ void tree_init() {
 
         /* add a workspace to this output */
         ws = con_new(oc);
+        ws->type = CT_WORKSPACE;
         ws->name = strdup("1");
         ws->fullscreen_mode = CF_OUTPUT;
     }
@@ -160,7 +161,7 @@ void tree_close(Con *con, bool kill_window) {
 
 void tree_close_con() {
     assert(focused != NULL);
-    if (focused->parent->type == CT_OUTPUT) {
+    if (focused->type == CT_WORKSPACE) {
         LOG("Cannot close workspace\n");
         return;
     }
@@ -176,7 +177,7 @@ void tree_close_con() {
  */
 void tree_split(Con *con, orientation_t orientation) {
     /* for a workspace, we just need to change orientation */
-    if (con->parent->type == CT_OUTPUT) {
+    if (con->type == CT_WORKSPACE) {
         con->orientation = orientation;
         return;
     }
@@ -194,7 +195,8 @@ void tree_split(Con *con, orientation_t orientation) {
 
 void level_up() {
     /* We can focus up to the workspace, but not any higher in the tree */
-    if (focused->parent->type != CT_CON) {
+    if (focused->parent->type != CT_CON &&
+        focused->parent->type != CT_WORKSPACE) {
         printf("cannot go up\n");
         return;
     }
@@ -246,7 +248,7 @@ void tree_next(char way, orientation_t orientation) {
         LOG("need to go one level further up\n");
         /* if the current parent is an output, we are at a workspace
          * and the orientation still does not match */
-        if (parent->parent->type == CT_OUTPUT)
+        if (parent->type == CT_WORKSPACE)
             return;
         parent = parent->parent;
     }
@@ -279,14 +281,14 @@ void tree_next(char way, orientation_t orientation) {
 void tree_move(char way, orientation_t orientation) {
     /* 1: get the first parent with the same orientation */
     Con *parent = focused->parent;
-    if (parent->type == CT_OUTPUT)
+    if (focused->type == CT_WORKSPACE)
         return;
     bool level_changed = false;
     while (parent->orientation != orientation) {
         LOG("need to go one level further up\n");
         /* if the current parent is an output, we are at a workspace
          * and the orientation still does not match */
-        if (parent->parent->type == CT_OUTPUT)
+        if (parent->type == CT_WORKSPACE)
             return;
         parent = parent->parent;
         level_changed = true;
diff --git a/src/workspace.c b/src/workspace.c
index 6404cff0..457603ee 100644
--- a/src/workspace.c
+++ b/src/workspace.c
@@ -39,6 +39,7 @@ Con *workspace_get(const char *num) {
         output = con_get_output(focused);
         LOG("got output %p\n", output);
         workspace = con_new(output);
+        workspace->type = CT_WORKSPACE;
         workspace->name = strdup(num);
 
         ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"init\"}");