feat(providers): Inital COC support

Closes #68
Still needs support for code actions/hover/rename etc

lua/symbols-outline.lua

@@ -5,7 +5,6 @@ local providers = require('symbols-outline.providers.init')
 local ui = require('symbols-outline.ui')
 local writer = require('symbols-outline.writer')
 local config = require('symbols-outline.config')
-local lsp_utils = require('symbols-outline.utils.lsp_utils')
 local utils = require('symbols-outline.utils.init')
 local view = require('symbols-outline.view')
 
@@ -51,11 +50,6 @@ local function __refresh()
                 return
             end
 
-            local current_buf = vim.api.nvim_get_current_buf()
-            if lsp_utils.should_not_refresh(current_buf) then
-                return
-            end
-
             local items = parser.parse(response)
 
             M.state.code_win = vim.api.nvim_get_current_win()
@@ -81,17 +75,14 @@ function M._goto_location(change_focus)
 end
 
 function M._highlight_current_item(winnr)
-    local doesnt_have_lsp = not lsp_utils.is_buf_attached_to_lsp(
-                                vim.api.nvim_win_get_buf(winnr or 0))
+    local has_provider = providers.has_provider()
 
     local is_current_buffer_the_outline =
         M.state.outline_buf == vim.api.nvim_get_current_buf()
 
     local doesnt_have_outline_buf = not M.state.outline_buf
 
-    local is_not_markdown = not lsp_utils.is_buf_markdown(0)
-
-    local should_exit = (doesnt_have_lsp and is_not_markdown) or
+    local should_exit = (not has_provider) or
                             doesnt_have_outline_buf or
                             is_current_buffer_the_outline
 

lua/symbols-outline/parser.lua

@@ -52,7 +52,7 @@ local function parse_result(result, depth, hierarchy)
                 deprecated = value.deprecated,
                 kind = value.kind,
                 icon = symbols.icon_from_kind(value.kind),
-                name = value.name,
+                name = value.name or value.text,
                 detail = value.detail,
                 line = selectionRange.start.line,
                 character = selectionRange.start.character,

lua/symbols-outline/providers/coc.lua

@@ -0,0 +1,24 @@
+-- local config = require('symbols-outline.config')
+
+local M = {}
+
+-- probably change this
+function M.should_use_provider(_)
+    local coc_installed = vim.fn.exists("*CocActionAsync")
+
+    if not coc_installed then return end
+
+    local coc_attached = vim.fn.call('CocAction', {'ensureDocument'})
+    local has_symbols = vim.fn.call('CocHasProvider', {'documentSymbol'})
+
+    return coc_attached and has_symbols;
+end
+
+---@param on_symbols function
+function M.request_symbols(on_symbols)
+    vim.fn.call('CocActionAsync', {'documentSymbols', function (_, symbols)
+        on_symbols{[1000000]={result=symbols}}
+    end})
+end
+
+return M

lua/symbols-outline/providers/init.lua

@@ -2,9 +2,24 @@ local M = {}
 
 local providers = {
     'symbols-outline/providers/nvim-lsp',
+    'symbols-outline/providers/coc',
     'symbols-outline/providers/markdown'
 }
 
+local current_provider;
+
+function M.has_provider()
+    local ret = false;
+    for _, value in ipairs(providers) do
+       local provider = require(value)
+       if provider.should_use_provider(0) then
+           ret = true;
+           break
+       end
+    end
+    return ret
+end
+
 ---@param on_symbols function
 function M.request_symbols(on_symbols)
    for _, value in ipairs(providers) do

lua/symbols-outline/symbols.lua

@@ -12,6 +12,10 @@ M.kinds = {
 function M.icon_from_kind(kind)
     local symbols = config.options.symbols
 
+    if type(kind) == 'string' then
+       return symbols[kind].icon
+    end
+
     -- If the kind is higher than the available ones then default to 'Object'
     if kind > #M.kinds then kind = 19 end
     return symbols[M.kinds[kind]].icon

lua/symbols-outline/utils/lsp_utils.lua

@@ -36,13 +36,4 @@ function M.is_buf_markdown(bufnr)
     return vim.api.nvim_buf_get_option(bufnr, 'ft') == 'markdown'
 end
 
----@param bufnr number
----@return boolean
-function M.should_not_refresh(bufnr)
-    if (not M.is_buf_markdown(bufnr)) and (not M.is_buf_attached_to_lsp(bufnr)) then
-        return true
-    end
-    return false
-end
-
 return M