feat(sources): WIP preview entries in path source menus

Bekaboo · Sep 10, 2023 · ec3b03d · ec3b03d
1 parent d9e2b24
commit ec3b03d
Showing 1 changed file with 107 additions and 0 deletions.
diff --git a/lua/dropbar/sources/path.lua b/lua/dropbar/sources/path.lua
@@ -51,6 +51,113 @@ local function convert(path, buf, win)
     jump = function(_)
       vim.cmd.edit(path)
     end,
+    preview = function(self)
+      if vim.uv.fs_stat(path).type == 'directory' then
+        -- TODO: preview directory entries
+        self.entry.menu.preview_buf = nil
+        self:preview_close_view()
+        return
+      end
+      self.entry.menu.preview_buf = vim.fn.bufnr(path)
+      if
+        self.entry.menu.preview_buf == nil
+        or self.entry.menu.preview_buf == -1
+      then
+        self.entry.menu.preview_buf = vim.fn.bufadd(path)
+        vim.api.nvim_exec_autocmds(
+          'BufReadPost',
+          { buffer = self.entry.menu.preview_buf }
+        )
+      end
+      if
+        self.entry.menu == nil
+        or self.entry.menu.win == nil
+        or self.entry.menu.preview_buf == nil
+      then
+        if self.entry.menu then
+          self.entry.menu.preview_buf = nil
+        end
+        self:preview_close_view()
+        return
+      end
+      local function make_title()
+        local pat = vim.fs.normalize(
+          configs.eval(
+            configs.opts.sources.path.relative_to,
+            self.entry.menu.preview_buf
+          )
+        )
+        return {
+          { icon, icon_hl },
+          {
+            vim.api
+              .nvim_buf_get_name(self.entry.menu.preview_buf)
+              :gsub('' .. pat .. '/', '')
+              :gsub('^' .. pat, ''), -- ':~'
+            'NormalFloat',
+          },
+        }
+      end
+      if
+        self.entry.menu.preview_float == nil
+        or vim.api.nvim_win_is_valid(self.entry.menu.preview_float) == false
+      then
+        self.entry.menu.preview_float =
+          vim.api.nvim_open_win(self.entry.menu.preview_buf, false, {
+            relative = 'editor',
+            style = 'minimal',
+            -- focusable = false,
+            width = math.min(80, math.floor(vim.o.columns / 2)),
+            height = math.min(25, math.floor(vim.o.lines / 2)),
+            row = vim.api.nvim_win_get_position(self.entry.menu.win)[1],
+            col = vim.api.nvim_win_get_position(self.entry.menu.win)[2]
+              + vim.api.nvim_win_get_width(self.entry.menu.win)
+              + 1,
+            border = {
+              { ' ', 'NormalFloat' },
+              { ' ', 'NormalFloat' },
+              { ' ', 'NormalFloat' },
+              { ' ', 'NormalFloat' },
+              { ' ', 'NormalFloat' },
+              { ' ', 'NormalFloat' },
+              { ' ', 'NormalFloat' },
+              { ' ', 'NormalFloat' },
+            },
+            title = make_title(),
+          })
+        vim.api.nvim_create_autocmd('BufLeave', {
+          buffer = self.entry.menu.buf,
+          callback = function()
+            self:preview_close_view()
+          end,
+        })
+      else
+        vim.api.nvim_win_set_buf(
+          self.entry.menu.preview_float,
+          self.entry.menu.preview_buf
+        )
+        local config =
+          vim.api.nvim_win_get_config(self.entry.menu.preview_float)
+        config.title = make_title()
+        vim.api.nvim_win_set_config(self.entry.menu.preview_float, config)
+      end
+      vim.api.nvim_win_set_cursor(self.entry.menu.preview_float, { 1, 0 })
+      vim.wo[self.entry.menu.preview_float].winbar = ''
+      vim.wo[self.entry.menu.preview_float].stc = ''
+      vim.wo[self.entry.menu.preview_float].signcolumn = 'no'
+      vim.wo[self.entry.menu.preview_float].number = false
+    end,
+    preview_restore_view = function(self) end,
+    preview_close_view = function(self)
+      if
+        self.entry.menu.preview_float
+        and vim.api.nvim_win_is_valid(self.entry.menu.preview_float)
+      then
+        vim.api.nvim_win_close(self.entry.menu.preview_float, true)
+      end
+      self.entry.menu.preview_float = nil
+      self.entry.menu.preview_buf = nil
+    end,
   }, {
     ---@param self dropbar_symbol_t
     __index = function(self, k)