fix: save and restore fixed win dimensions on resize

lua/focus/modules/resizer.lua

@@ -21,6 +21,31 @@ local golden_ratio_minheight = function()
     return math.floor(golden_ratio_height() / (3 * golden_ratio))
 end
 
+local function save_fixed_win_dims()
+    local fixed_dims = {}
+
+    for _, win in ipairs(vim.api.nvim_list_wins()) do
+        local buf = vim.api.nvim_win_get_buf(win)
+        if vim.w[win].focus_disable or vim.b[buf].focus_disable then
+            fixed_dims[win] = {
+                width = vim.api.nvim_win_get_width(win),
+                height = vim.api.nvim_win_get_height(win),
+            }
+        end
+    end
+
+    return fixed_dims
+end
+
+local function restore_fixed_win_dims(fixed_dims)
+    for win, dims in pairs(fixed_dims) do
+        if vim.api.nvim_win_is_valid(win) then
+            vim.api.nvim_win_set_width(win, dims.width)
+            vim.api.nvim_win_set_height(win, dims.height)
+        end
+    end
+end
+
 function M.autoresize(config)
     local width
     if config.autoresize.width > 0 then
@@ -49,9 +74,13 @@ function M.autoresize(config)
     -- save cmdheight to ensure it is not changed by nvim_win_set_height
     local cmdheight = vim.o.cmdheight
 
+    local fixed = save_fixed_win_dims()
+
     vim.api.nvim_win_set_width(0, width)
     vim.api.nvim_win_set_height(0, height)
 
+    restore_fixed_win_dims(fixed)
+
     vim.o.cmdheight = cmdheight
 end
 
@@ -62,9 +91,12 @@ end
 function M.maximise()
     local width, height = vim.o.columns, vim.o.lines
 
-    local win = vim.api.nvim_get_current_win()
-    vim.api.nvim_win_set_width(win, width)
-    vim.api.nvim_win_set_height(win, height)
+    local fixed = save_fixed_win_dims()
+
+    vim.api.nvim_win_set_width(0, width)
+    vim.api.nvim_win_set_height(0, height)
+
+    restore_fixed_win_dims(fixed)
 end
 
 M.goal = 'autoresize'