diff options
Diffstat (limited to 'init.lua')
| -rw-r--r-- | init.lua | 54 |
1 files changed, 52 insertions, 2 deletions
@@ -204,7 +204,7 @@ local function get_selection(win) return {line = win.selection.line, col = win.selection.col} end --- get the 0-base byte offset from a selection +-- get the 0-based byte offset from a selection -- ATTENTION: this function modifies the primary selection so it is not -- safe to call it for example during WIN_HIGHLIGHT events local function vis_sel_to_pos(win, selection) @@ -217,6 +217,19 @@ local function vis_sel_to_pos(win, selection) return pos end +-- get the line and column from a 0-based byte offset +-- ATTENTION: this function modifies the primary selection so it is not +-- safe to call it for example during WIN_HIGHLIGHT events +local function vis_pos_to_sel(win, pos) + local old_selection = get_selection(win) + -- move primary selection + win.selection.pos = pos + local sel = get_selection(win) + -- restore old primary selection + win.selection:to(old_selection.line, old_selection.col) + return sel +end + -- convert lsp_position to vis_selection local function lsp_pos_to_vis_sel(pos) return {line = pos.line + 1, col = pos.character + 1} @@ -589,6 +602,22 @@ local function lspc_handle_completion_method_response(win, result, old_pos) lspc_err('Unsupported completion') end +local function lspc_handle_hover_method_response(win, result, old_pos) + if not result or not result.contents then + lspc_warn('no hover available') + return + end + + -- extract the string value from a possible MarkupContent object + local sel = vis_pos_to_sel(win, old_pos) + local hover_header = + '--- hover: ' .. (win.file.path or '') .. ':' .. sel.line .. ', ' .. + sel.col .. ' ---' + local hover_msg = result.contents.value or result.contents + vis:message(hover_header .. '\n' .. hover_msg) + +end + -- method response dispatcher local function ls_handle_method_response(ls, method_response, req) local win = req.win @@ -612,6 +641,9 @@ local function ls_handle_method_response(ls, method_response, req) elseif method == 'textDocument/completion' then lspc_handle_completion_method_response(win, result, req.ctx) + elseif method == 'textDocument/hover' then + lspc_handle_hover_method_response(win, result, req.ctx) + elseif method == 'shutdown' then ls_send_notification(ls, 'exit') ls.fd:close() @@ -1004,6 +1036,20 @@ for name, func in pairs(lspc_goto_location_methods) do end) end +vis:command_register('lspc-hover', function(_, _, win) + local ls, err = lspc_get_usable_ls(win.syntax) + if err then + lspc_err(err) + return + end + + -- remember the position where hover was called + err = lspc_method_doc_pos(ls, 'hover', win, win.selection.pos) + if err then + lspc_err(err) + end +end) + vis:command_register('lspc-completion', function(_, _, win) local ls, err = lspc_get_usable_ls(win.syntax) if err then @@ -1011,7 +1057,7 @@ vis:command_register('lspc-completion', function(_, _, win) return end - -- remember the position where completions where requested + -- remember the position where completions were requested -- to apply insertText completions err = lspc_method_doc_pos(ls, 'completion', win, win.selection.pos) if err then @@ -1179,6 +1225,10 @@ vis:map(vis.modes.NORMAL, ' e', function() vis:command('lspc-show-diagnostics') end, 'lspc: show diagnostic of current line') +vis:map(vis.modes.NORMAL, 'K', function() + vis:command('lspc-hover') +end, 'lspc: hover over current position') + vis:option_register('lspc-highlight-diagnostics', 'bool', function(value) lspc.highlight_diagnostics = value return true |