Finder

Usage #

Finder is an UI to show LSP methods search result.

Invoke :Lspsaga finder and you will see the finder window. By default it shows results for references and implementation.

Default Options #

These are default options in finder section:

• max_height = 0.5
  • max_height of the finder window (float layout)
• left_width = 0.3
  • Width of the left finder window (float layout)
• right_width = 0.3
  • Width of the right finder window (float layout)
• default = 'ref+imp'
  • Default search results shown, ref for “references” and imp for “implementation”
• methods = {}
  • Keys are alias of LSP methods. Values are LSP methods, which you want show in finder. More info below
  • For instance, methods = { 'tyd' = 'textDocument/typeDefinition' }
• layout = 'float' available value is normal and float
  • normal will use the normal layout window priority is lower than command layout
• filter = {}
  • Keys are LSP methods. Values are a filter handler. Function parameter are client_id and result
• silent = false
  • If it’s true, it will disable show the no response message

Default Keymaps #

These are default keymaps in finder.keys table section:

• shuttle = '[w' shuttle bettween the finder layout window
• toggle_or_open = 'o' toggle expand or open
• vsplit = 's' open in vsplit
• split = 'i' open in split
• tabe = 't' open in tabe
• tabnew = 'r' open in new tab
• quit = 'q' quit the finder, only works in layout left window
• close = '<C-c>k' close finder

Advanced Configuration #

Put the option, which you want change in setup function parameter table like config below:

require('lspsaga').setup({
  finder = {
    max_height = 0.6
    keys = {
      vsplit = 'v'
    }
  }
})

Change LSP Search Options #

You can change the default option like default = 'def+ref+imp'. It will show “definition”, “references”, and “implementation”. Or, you can specify the search options as command arguments, for instance :Lspsaga finder def+ref which will not show implementations. Note that command line options overrides the setup options.

You can use single alias or combine alias in finder. The following are both correct:

:Lspsaga finder ref      " same as default = 'ref'
:Lspsaga finder def+ref  " same as default = 'def+ref'

And more with your custom methods. This is the extensibility of finder now.

How Can I Add New Methods Which I Want Show in Finder? #

Simply put them in the config table. The methods table takes in a key which is method alias that you can use in command or default option. The value is the corresponding LSP method (usually textDocument/foo). For example, I want finder to show textDocument/typeDefinition in search results:

require('lspsaga').setup({
  finder = {
    methods = {
      'tyd' = 'textDocument/typeDefinition'
    }
  }
})

Then you can do :Lspsaga finder tyd or combine other methods such as :Lspsaga finder tyd+ref+def or use in default = 'typd+ref'.

Showcase: :Lspsaga finder tyd+ref+imp+def (same as default ='tyd+ref+imp+def')

By default, there are 3 built-in aliases: def -> textDocument/definition, ref -> textDocument/references, and imp -> textDocuemnt/implementation.

Notice current indent highlight is provided by finder and not by any third-party plugin. It will disappear when you jump to other windows. If you see the indent line provide by other indent plugin, please consider add sagafinder filetype to that plugin’s exclude list.

Change Finder Layout #

Same as the search options, you can specify the layout either in the setup function or pass in a command arg (prefix it with ++, for instance :Lspsaga finder ++normal). Similarly, the command line argument overrides the config table. Available values are normal and layout.

Jump In Layout #

The right window also is peek. That means, you can do edit on right window.

You can use the keys.shuttle to jump between the window, jump to right, or jump to left. Suggest workflow is:

• keys.shuttle default is [w to right. Do some edit, :w save file
• keys.shuttle to left or use keys.close to close layout window in right

keys.close can both work on left or right of layout windows.

Filter Search Result #

You can use the filter option to filter LSP methods result. The keys are method, and values are Lua function with client_id and result parameter. The function should return a boolean. As an example:

require('lspsaga').setup({
  finder = {
    filter = {
      ['textDocument/references']  = function(client_id, result)
        -- your logic
        return true
      end
    }
  }
})

Vsplit/Split in an exist window #

when you have multiple window which create by split or vsplit and you want open file in these window by using vsplit split keymap in finder . you can use ++inexist flag in command .like

:Lspsaga finder ++inexist

Highlight Group #

• SagaNormal window normal highlight for finder
• SagaBorder border for the float layout of finder