[mutter] stack-tracker: Fix coding style of meta_stack_op_apply()

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 74c0d9140c5ae5c0eb40220d46c480da1346b27a
Author: Jonas Ådahl <jadahl gmail com>
Date:   Tue Jun 9 19:07:47 2020 +0200

    stack-tracker: Fix coding style of meta_stack_op_apply()
    
    Change tabs to spaces, clean up variable declarations.
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1300

 src/core/stack-tracker.c | 142 +++++++++++++++++++++++++----------------------
 1 file changed, 76 insertions(+), 66 deletions(-)
---
diff --git a/src/core/stack-tracker.c b/src/core/stack-tracker.c
index a37760ec2b..8d15b80c94 100644
--- a/src/core/stack-tracker.c
+++ b/src/core/stack-tracker.c
@@ -365,103 +365,113 @@ move_window_above (GArray    *stack,
 static gboolean
 meta_stack_op_apply (MetaStackTracker *tracker,
                      MetaStackOp      *op,
-                    GArray           *stack,
+                     GArray           *stack,
                      ApplyFlags        apply_flags)
 {
   switch (op->any.type)
     {
     case STACK_OP_ADD:
       {
+        int old_pos;
+
         if (META_STACK_ID_IS_X11 (op->add.window) &&
             (apply_flags & NO_RESTACK_X_WINDOWS) != 0)
           return FALSE;
 
-       int old_pos = find_window (stack, op->add.window);
-       if (old_pos >= 0)
-         {
-           g_warning ("STACK_OP_ADD: window %s already in stack",
-                      get_window_desc (tracker, op->add.window));
-           return FALSE;
-         }
+        old_pos = find_window (stack, op->add.window);
+        if (old_pos >= 0)
+          {
+            g_warning ("STACK_OP_ADD: window %s already in stack",
+                       get_window_desc (tracker, op->add.window));
+            return FALSE;
+          }
 
-       g_array_append_val (stack, op->add.window);
-       return TRUE;
+        g_array_append_val (stack, op->add.window);
+        return TRUE;
       }
     case STACK_OP_REMOVE:
       {
+        int old_pos;
+
         if (META_STACK_ID_IS_X11 (op->remove.window) &&
             (apply_flags & NO_RESTACK_X_WINDOWS) != 0)
           return FALSE;
 
-       int old_pos = find_window (stack, op->remove.window);
-       if (old_pos < 0)
-         {
-           g_warning ("STACK_OP_REMOVE: window %s not in stack",
-                      get_window_desc (tracker, op->remove.window));
-           return FALSE;
-         }
+        old_pos = find_window (stack, op->remove.window);
+        if (old_pos < 0)
+          {
+            g_warning ("STACK_OP_REMOVE: window %s not in stack",
+                       get_window_desc (tracker, op->remove.window));
+            return FALSE;
+          }
 
-       g_array_remove_index (stack, old_pos);
-       return TRUE;
+        g_array_remove_index (stack, old_pos);
+        return TRUE;
       }
     case STACK_OP_RAISE_ABOVE:
       {
-       int old_pos = find_window (stack, op->raise_above.window);
-       int above_pos;
-       if (old_pos < 0)
-         {
-           g_warning ("STACK_OP_RAISE_ABOVE: window %s not in stack",
-                      get_window_desc (tracker, op->raise_above.window));
-           return FALSE;
-         }
+        int old_pos;
+        int above_pos;
+
+        old_pos = find_window (stack, op->raise_above.window);
+        if (old_pos < 0)
+          {
+            g_warning ("STACK_OP_RAISE_ABOVE: window %s not in stack",
+                       get_window_desc (tracker, op->raise_above.window));
+            return FALSE;
+          }
 
         if (op->raise_above.sibling)
-         {
-           above_pos = find_window (stack, op->raise_above.sibling);
-           if (above_pos < 0)
-             {
-               g_warning ("STACK_OP_RAISE_ABOVE: sibling window %s not in stack",
+          {
+            above_pos = find_window (stack, op->raise_above.sibling);
+            if (above_pos < 0)
+              {
+                g_warning ("STACK_OP_RAISE_ABOVE: sibling window %s not in stack",
                            get_window_desc (tracker, op->raise_above.sibling));
-               return FALSE;
-             }
-         }
-       else
-         {
-           above_pos = -1;
-         }
-
-       return move_window_above (stack, op->raise_above.window, old_pos, above_pos,
+                return FALSE;
+              }
+          }
+        else
+          {
+            above_pos = -1;
+          }
+
+        return move_window_above (stack, op->raise_above.window, old_pos, above_pos,
                                   apply_flags);
       }
     case STACK_OP_LOWER_BELOW:
       {
-       int old_pos = find_window (stack, op->lower_below.window);
-       int above_pos;
-       if (old_pos < 0)
-         {
-           g_warning ("STACK_OP_LOWER_BELOW: window %s not in stack",
-                      get_window_desc (tracker, op->lower_below.window));
-           return FALSE;
-         }
+        int old_pos;
+        int above_pos;
+
+        old_pos = find_window (stack, op->raise_above.window);
+        if (old_pos < 0)
+          {
+            g_warning ("STACK_OP_LOWER_BELOW: window %s not in stack",
+                       get_window_desc (tracker, op->lower_below.window));
+            return FALSE;
+          }
 
         if (op->lower_below.sibling)
-         {
-           int below_pos = find_window (stack, op->lower_below.sibling);
-           if (below_pos < 0)
-             {
-               g_warning ("STACK_OP_LOWER_BELOW: sibling window %s not in stack",
-                          get_window_desc (tracker, op->lower_below.sibling));
-               return FALSE;
-             }
-
-           above_pos = below_pos - 1;
-         }
-       else
-         {
-           above_pos = stack->len - 1;
-         }
-
-       return move_window_above (stack, op->lower_below.window, old_pos, above_pos,
+          {
+            int below_pos;
+
+            below_pos = find_window (stack, op->lower_below.sibling);
+            if (below_pos < 0)
+              {
+                g_warning ("STACK_OP_LOWER_BELOW: sibling window %s not in stack",
+                           get_window_desc (tracker, op->lower_below.sibling));
+                return FALSE;
+              }
+
+            above_pos = below_pos - 1;
+          }
+        else
+          {
+            above_pos = stack->len - 1;
+          }
+
+        return move_window_above (stack, op->lower_below.window, old_pos, above_pos,
                                   apply_flags);
       }
     }