Merge pull request #14091 from euclidianAce/euclidianAce/nvim_win_hide

api: add vim.api.nvim_win_hide

runtime/doc/api.txt

@@ -2518,6 +2518,21 @@ nvim_win_get_width({window})                            *nvim_win_get_width()*
                 Return: ~
                     Width as a count of columns
 
+nvim_win_hide({window})                                      *nvim_win_hide()*
+                Closes the window and hide the buffer it contains (like
+                |:hide| with a |window-ID|).
+
+                Like |:hide| the buffer becomes hidden unless another window
+                is editing it, or 'bufhidden' is `unload` , `delete` or `wipe`
+                as opposed to |:close| or |nvim_win_close|, which will close
+                the buffer.
+
+                Attributes: ~
+                    not allowed when |textlock| is active
+
+                Parameters: ~
+                    {window}  Window handle, or 0 for current window
+
 nvim_win_is_valid({window})                              *nvim_win_is_valid()*
                 Checks if a window is valid
 

src/nvim/api/window.c

@@ -492,6 +492,35 @@ Dictionary nvim_win_get_config(Window window, Error *err)
   return rv;
 }
 
+/// Closes the window and hide the buffer it contains (like |:hide| with a
+/// |window-ID|).
+///
+/// Like |:hide| the buffer becomes hidden unless another window is editing it,
+/// or 'bufhidden' is `unload`, `delete` or `wipe` as opposed to |:close| or
+/// |nvim_win_close|, which will close the buffer.
+///
+/// @param window   Window handle, or 0 for current window
+/// @param[out] err Error details, if any
+void nvim_win_hide(Window window, Error *err)
+  FUNC_API_SINCE(7)
+  FUNC_API_CHECK_TEXTLOCK
+{
+  win_T *win = find_window_by_handle(window, err);
+  if (!win) {
+    return;
+  }
+
+  tabpage_T *tabpage = win_find_tabpage(win);
+  TryState tstate;
+  try_enter(&tstate);
+  if (tabpage == curtab) {
+    win_close(win, false);
+  } else {
+    win_close_othertab(win, false, tabpage);
+  }
+  vim_ignored = try_leave(&tstate, err);
+}
+
 /// Closes the window (like |:close| with a |window-ID|).
 ///
 /// @param window   Window handle, or 0 for current window

test/functional/api/window_spec.lua

@@ -347,4 +347,44 @@ describe('API/win', function()
       eq('', funcs.getcmdwintype())
     end)
   end)
+
+  describe('hide', function()
+    it('can hide current window', function()
+      local oldwin = meths.get_current_win()
+      command('split')
+      local newwin = meths.get_current_win()
+      meths.win_hide(newwin)
+      eq({oldwin}, meths.list_wins())
+    end)
+    it('can hide noncurrent window', function()
+      local oldwin = meths.get_current_win()
+      command('split')
+      local newwin = meths.get_current_win()
+      meths.win_hide(oldwin)
+      eq({newwin}, meths.list_wins())
+    end)
+    it('does not close the buffer', function()
+      local oldwin = meths.get_current_win()
+      local oldbuf = meths.get_current_buf()
+      local buf = meths.create_buf(true, false)
+      local newwin = meths.open_win(buf, true, {
+        relative='win', row=3, col=3, width=12, height=3
+      })
+      meths.win_hide(newwin)
+      eq({oldwin}, meths.list_wins())
+      eq({oldbuf, buf}, meths.list_bufs())
+    end)
+    it('deletes the buffer when bufhidden=wipe', function()
+      local oldwin = meths.get_current_win()
+      local oldbuf = meths.get_current_buf()
+      local buf = meths.create_buf(true, false)
+      local newwin = meths.open_win(buf, true, {
+        relative='win', row=3, col=3, width=12, height=3
+      })
+      meths.buf_set_option(buf, 'bufhidden', 'wipe')
+      meths.win_hide(newwin)
+      eq({oldwin}, meths.list_wins())
+      eq({oldbuf}, meths.list_bufs())
+    end)
+  end)
 end)