feat(sources-path & configs): add opts.sources.path.preview

README.md

@@ -789,6 +789,11 @@ vim.ui.select = require('dropbar.utils.menu').select
         modified = function(sym)
           return sym
         end,
+        ---@type boolean|fun(path: string): boolean?|nil
+        preview = function(path)
+          local stat = vim.uv.fs_stat(path)
+          return stat and stat.type == 'file' and stat.size <= 524288
+        end,
       },
       treesitter = {
         -- Lua pattern used to extract a short name from the node text
@@ -1596,6 +1601,16 @@ each sources.
       })
     end
     ```
+- `opts.sources.path.preview`: `boolean|fun(path: string): boolean?|nil`
+  - A boolean or a function that takes a file path and returns whether to
+    preview the file under cursor
+  - Default:
+    ```lua
+    function(path)
+      local stat = vim.uv.fs_stat(path)
+      return stat and stat.type == 'file' and stat.size <= 524288
+    end
+    ```
 
 ##### Treesitter
 

doc/dropbar.txt

@@ -892,6 +892,17 @@ PATH                              *dropbar-configuration-options-sources-path*
 		-- ...
 	      })
 	    end
+- `opts.sources.path.preview`: `boolean|fun(path: string): boolean?|nil`
+  - A boolean or a function that takes a file path and returns whether to
+    preview the file under cursor
+  - Default: >lua
+
+	    function(path)
+	      local stat = vim.uv.fs_stat(path)
+	      return stat and stat.type == 'file'
+		and stat.size <= 524288
+	    end
+<
 
 TREESITTER                  *dropbar-configuration-options-sources-treesitter*
 

lua/dropbar/configs.lua

@@ -536,6 +536,11 @@ M.opts = {
       modified = function(sym)
         return sym
       end,
+      ---@type boolean|fun(path: string): boolean?|nil
+      preview = function(path)
+        local stat = vim.uv.fs_stat(path)
+        return stat and stat.type == 'file' and stat.size <= 524288
+      end,
     },
     treesitter = {
       -- Lua pattern used to extract a short name from the node text

lua/dropbar/sources/path.lua

@@ -61,6 +61,9 @@ end
 
 ---@param self dropbar_symbol_t
 local function preview_open(self, path)
+  if not configs.eval(configs.opts.sources.path.preview, path) then
+    return
+  end
   local preview_buf = preview_prepare_buf(self, path)
   if not preview_buf then
     return