hover.nvim

General framework for context aware hover providers (similar to vim.lsp.buf.hover).

Requires Nvim v0.10.0

Screenshots

LSP	Github Issues

Dictionary	Github User

Setup and Installation

via packer:

use {
    "lewis6991/hover.nvim",
    config = function()
        require("hover").setup {
            init = function()
                -- Require providers
                require("hover.providers.lsp")
                -- require('hover.providers.gh')
                -- require('hover.providers.gh_user')
                -- require('hover.providers.jira')
                -- require('hover.providers.dap')
                -- require('hover.providers.fold_preview')
                -- require('hover.providers.diagnostic')
                -- require('hover.providers.man')
                -- require('hover.providers.dictionary')
            end,
            preview_opts = {
                border = 'single'
            },
            -- What to do if hover() is called when a hover popup is already open:
            -- "cycle_providers" - cycle to the next enabled provider
            -- "focus" - move the cursor into the popup
            -- "preview_window" - move the popup contents to a :h preview-window
            -- "close" - close the popup
            -- "ignore" - do nothing
            multiple_hover = "cycle_providers"
            title = true,
            mouse_providers = {
                'LSP'
            },
            mouse_delay = 1000
        }

        -- Setup keymaps
        vim.keymap.set("n", "K", require("hover").hover, {desc = "hover.nvim"})
        vim.keymap.set("n", "gK", require("hover").hover_select, {desc = "hover.nvim (select)"})
        vim.keymap.set("n", "<C-p>", function() require("hover").hover_switch("previous") end, {desc = "hover.nvim (previous source)"})
        vim.keymap.set("n", "<C-n>", function() require("hover").hover_switch("next") end, {desc = "hover.nvim (next source)"})

        -- Mouse support
        vim.keymap.set('n', '<MouseMove>', require('hover').hover_mouse, { desc = "hover.nvim (mouse)" })
        vim.o.mousemoveevent = true
end)
    end
}

Built in Providers

LSP

require('hover.providers.lsp')

Builtin LSP

Priority: 1000

Diagnostics

require('hover.providers.diagnostic')

Diagnostics using vim.diagnostic

Priority: 1001

DAP

require('hover.providers.dap')

DAP hover

Priority: 1002

Fold Previewing

require('hover.providers.fold_preview')

Preview closed fold under cursor

Priority: 1003

Github: Issues and PR's

require('hover.providers.gh')

Opens issue/PR's for symbols like #123.

Requires the gh command.

Priority: 200

Github: Users

require('hover.providers.gh_user')

Information for github users in TODO comments. Matches TODO(<user>) and TODO(@<user>).

Requires the gh command.

Priority: 200

Jira

require('hover.providers.jira')

Opens issue for symbols like ABC-123.

Requires the jira command.

Priority: 175

Man

require('hover.providers.man')

man entries

Priority: 150

Dictionary

require('hover.providers.dictionary')

Definitions for valid words

Priority: 100

Creating a hover provider

Call require('hover').register(<provider>) with a table containing the following fields:

name: string, name of the hover provider
enabled: function, whether the hover is active for the current context
execute: function, executes the hover. Has the following arguments:
- opts: Additional options:
  - bufnr (integer)
  - winid (integer)
  - pos ({[1]: integer, [2]: integer})
- done: callback. First argument should be passed:
  - nil if the hover failed to execute. This will allow other lower priority hovers to run.
  - A table with the following fields:
priority: number (optional), priority of the provider

Example:

-- Simple
require('hover').register {
   name = 'Simple',
   --- @param bufnr integer
   enabled = function(bufnr)
     return true
   end,
   --- @param opts Hover.Options
   --- @param done fun(result?: Hover.Result)
   execute = function(opts, done)
     done{lines={'TEST'}, filetype="markdown"}
   end
}

--- @class Hover.Options
--- @field bufnr integer
--- @field winid integer
--- (1,0)-based
--- @field pos {[1]: integer, [2]: integer}
--- @field providers? string[]

--- @class Hover.Result
--- @field lines? string[]
--- @field bufnr? integer
--- @field filetype? string

License

SuperAPPKid/hover.nvim

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