From ae8acb24b2821459b0d69c6db1dc255bcdc35ef5 Mon Sep 17 00:00:00 2001
From: Tom Hacohen <tom@stosb.com>
Date: Thu, 16 Jan 2014 15:16:28 +0000
Subject: [PATCH] Tiling2: Fixed resizing of clients at "forbidden" borders.

For example, leftmost window's left border.
---
 src/modules/tiling/e_mod_tiling.c |  5 ++++-
 src/modules/tiling/window_tree.c  | 27 +++++++++++++++++++++------
 src/modules/tiling/window_tree.h  |  2 +-
 3 files changed, 26 insertions(+), 8 deletions(-)

diff --git a/src/modules/tiling/e_mod_tiling.c b/src/modules/tiling/e_mod_tiling.c
index 0f08f67..6965dad 100644
--- a/src/modules/tiling/e_mod_tiling.c
+++ b/src/modules/tiling/e_mod_tiling.c
@@ -722,7 +722,10 @@ static void _move_or_resize(E_Client *ec)
            }
          if ((w_diff != 1.0) || (h_diff != 1.0))
            {
-              tiling_window_tree_node_resize(item, w_dir, w_diff, h_dir, h_diff);
+              if (!tiling_window_tree_node_resize(item, w_dir, w_diff, h_dir, h_diff))
+                {
+                   /* FIXME: Do something? */
+                }
            }
       }
 
diff --git a/src/modules/tiling/window_tree.c b/src/modules/tiling/window_tree.c
index 107ee41..0ecc77a 100644
--- a/src/modules/tiling/window_tree.c
+++ b/src/modules/tiling/window_tree.c
@@ -299,7 +299,7 @@ _inlist_prev(Window_Tree *it)
    return (Window_Tree *) EINA_INLIST_GET(it)->prev;
 }
 
-static void
+static Eina_Bool
 _tiling_window_tree_node_resize_direction(Window_Tree *node, Window_Tree *parent,
       double dir_diff, int dir)
 {
@@ -329,8 +329,18 @@ _tiling_window_tree_node_resize_direction(Window_Tree *node, Window_Tree *parent
         itr = itr_func(itr);
      }
 
+   /* If it's at the edge, try the grandpa of the parent. */
    if (weight == 0.0)
-      return;
+     {
+        if (parent->parent && parent->parent->parent)
+          {
+             return _tiling_window_tree_node_resize_direction(parent->parent,
+                   parent->parent->parent,
+                   1.0 + ((dir_diff - 1.) * node->weight),
+                   dir);
+          }
+        return EINA_FALSE;
+     }
 
    weight_diff = itr->weight;
    itr->weight *= dir_diff;
@@ -341,17 +351,20 @@ _tiling_window_tree_node_resize_direction(Window_Tree *node, Window_Tree *parent
      {
         itr->weight += itr->weight * weight_diff;
      }
+
+   return EINA_TRUE;
 }
 
-void
+Eina_Bool
 tiling_window_tree_node_resize(Window_Tree *node, int w_dir, double w_diff, int h_dir, double h_diff)
 {
    Window_Tree *parent = node->parent;
    Window_Tree *w_parent, *h_parent;
+   Eina_Bool ret = EINA_FALSE;
 
    /* If we have no parent, means we need to be full screen anyway. */
    if (!parent)
-      return;
+      return EINA_FALSE;
 
    Window_Tree *grand_parent = parent->parent;
    Tiling_Split_Type parent_split_type = _tiling_window_tree_split_type_get(parent);
@@ -371,14 +384,16 @@ tiling_window_tree_node_resize(Window_Tree *node, int w_dir, double w_diff, int
    if ((h_diff != 1.0) && h_parent)
      {
         Window_Tree *tmp_node = (h_parent == parent) ? node : parent;
-        _tiling_window_tree_node_resize_direction(tmp_node, h_parent, h_diff, h_dir);
+        ret = ret || _tiling_window_tree_node_resize_direction(tmp_node, h_parent, h_diff, h_dir);
      }
 
    if ((w_diff != 1.0) && w_parent)
      {
         Window_Tree *tmp_node = (w_parent == parent) ? node : parent;
-        _tiling_window_tree_node_resize_direction(tmp_node, w_parent, w_diff, w_dir);
+        ret = ret || _tiling_window_tree_node_resize_direction(tmp_node, w_parent, w_diff, w_dir);
      }
+
+   return ret;
 }
 
 void
diff --git a/src/modules/tiling/window_tree.h b/src/modules/tiling/window_tree.h
index 5241e27..6cca18c 100644
--- a/src/modules/tiling/window_tree.h
+++ b/src/modules/tiling/window_tree.h
@@ -32,6 +32,6 @@ Window_Tree *tiling_window_tree_client_find(Window_Tree *root, E_Client *client)
 
 void tiling_window_tree_apply(Window_Tree *root, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h);
 
-void tiling_window_tree_node_resize(Window_Tree *node, int w_dir, double w_diff, int h_dir, double h_diff);
+Eina_Bool tiling_window_tree_node_resize(Window_Tree *node, int w_dir, double w_diff, int h_dir, double h_diff);
 
 #endif
-- 
2.7.4