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local config = require('opencode.config')
local state = require('opencode.state')
local renderer = require('opencode.ui.renderer')
local output_window = require('opencode.ui.output_window')
local input_window = require('opencode.ui.input_window')
local float_layout = require('opencode.ui.float_layout')
local footer = require('opencode.ui.footer')
local session_tab_strip = require('opencode.ui.session_tab_strip')
local topbar = require('opencode.ui.topbar')
local window_options = require('opencode.ui.window_options')
local M = {}
---Capture cursor positions from both windows for snapshot
---@param windows OpencodeWindowState
---@return {input: integer[]|nil, output: integer[]|nil}
local function capture_cursors_position(windows)
return {
input = state.ui.get_window_cursor(windows.input_win),
output = state.ui.get_window_cursor(windows.output_win),
}
end
---@param win_id integer|nil
---@param buf_id integer|nil
---@param cursor integer[]|nil
local function restore_window_cursor(win_id, buf_id, cursor)
if not win_id or not vim.api.nvim_win_is_valid(win_id) then
return
end
if not buf_id or not vim.api.nvim_buf_is_valid(buf_id) then
return
end
if type(cursor) ~= 'table' or #cursor < 2 then
return
end
local line_count = vim.api.nvim_buf_line_count(buf_id)
if line_count <= 0 then
return
end
local line = tonumber(cursor[1]) or 1
local col = tonumber(cursor[2]) or 0
line = math.max(1, math.min(math.floor(line), line_count))
col = math.max(0, math.floor(col))
local ok, line_text = pcall(vim.api.nvim_buf_get_lines, buf_id, line - 1, line, false)
if ok then
local text = line_text[1] or ''
col = math.min(col, #text)
end
pcall(vim.api.nvim_win_set_cursor, win_id, { line, col })
end
---@param windows OpencodeWindowState
---@return OpencodeHiddenBuffers
local function capture_hidden_snapshot(windows)
local current_win = vim.api.nvim_get_current_win()
local focused = state.last_focused_opencode_window or 'input'
if current_win == windows.output_win then
focused = 'output'
elseif current_win == windows.input_win then
focused = 'input'
end
local ok, view = pcall(vim.api.nvim_win_call, windows.output_win, vim.fn.winsaveview)
local cursor_positions = capture_cursors_position(windows)
return {
input_buf = windows.input_buf,
output_buf = windows.output_buf,
footer_buf = windows.footer_buf,
tab_strip_buf = windows.tab_strip_buf,
output_was_at_bottom = output_window.is_at_bottom(windows.output_win),
input_hidden = input_window.is_hidden(),
input_cursor = cursor_positions.input,
output_cursor = cursor_positions.output,
output_view = ok and type(view) == 'table' and view or nil,
focused_window = focused,
position = windows.position,
owner_tab = state.ui.are_windows_in_current_tab() and vim.api.nvim_get_current_tabpage() or nil,
}
end
---@param windows OpencodeWindowState?
---@param persist? boolean If true, preserve buffers for fast restore
function M.close_windows(windows, persist)
local should_preserve = persist == true and config.ui.persist_state
if should_preserve then
return M.hide_visible_windows(windows)
end
return M.teardown_visible_windows(windows)
end
function M.prepare_session_tab_switch()
renderer.prepare_session_tab_switch()
end
---Clear Opencode-specific autocmds and shared UI state before closing windows.
local function prepare_window_close()
if M.is_opencode_focused() then
M.return_to_last_code_win()
end
if state.display_route then
state.ui.clear_display_route()
end
pcall(vim.api.nvim_del_augroup_by_name, 'OpencodeResize')
pcall(vim.api.nvim_del_augroup_by_name, 'OpencodeWindows')
pcall(vim.api.nvim_del_augroup_by_name, 'OpencodeFooterResize')
topbar.close()
end
---@param windows OpencodeWindowState
local function close_input_window(windows)
if windows.input_win and vim.api.nvim_win_is_valid(windows.input_win) then
output_window.restore_winfix_options(windows.input_win)
pcall(vim.api.nvim_win_close, windows.input_win, true)
end
end
---@param windows OpencodeWindowState
local function close_or_restore_output_window(windows)
if not windows.output_win or not vim.api.nvim_win_is_valid(windows.output_win) then
return
end
output_window.restore_winfix_options(windows.output_win)
if windows.position == 'current' then
if state.current_code_buf and vim.api.nvim_buf_is_valid(state.current_code_buf) then
pcall(vim.api.nvim_win_set_buf, windows.output_win, state.current_code_buf)
end
if state.saved_window_options then
for opt, value in pairs(state.saved_window_options) do
pcall(vim.api.nvim_set_option_value, opt, value, { win = windows.output_win, scope = 'local' })
end
state.ui.set_saved_window_options(nil)
end
return
end
pcall(vim.api.nvim_win_close, windows.output_win, true)
end
---@param windows OpencodeWindowState?
---@param force_preserve? boolean Preserve buffers even when persist_state is disabled
function M.hide_visible_windows(windows, force_preserve)
if not windows then
return
end
if not config.ui.persist_state and not force_preserve then
return M.teardown_visible_windows(windows)
end
local snapshot = capture_hidden_snapshot(windows)
-- Only save width ratio for split modes (not dialog/current mode)
if windows.position ~= 'current' then
local total_cols = vim.o.columns
local current_width = vim.api.nvim_win_get_width(windows.output_win)
state.ui.set_last_window_width_ratio(current_width / total_cols)
end
state.ui.clear_hidden_window_state()
prepare_window_close()
footer.close(true)
session_tab_strip.close(true, windows)
close_input_window(windows)
close_or_restore_output_window(windows)
for _, buf in ipairs({ windows.input_buf, windows.output_buf, windows.footer_buf, windows.tab_strip_buf }) do
if buf and vim.api.nvim_buf_is_valid(buf) then
pcall(vim.api.nvim_set_option_value, 'bufhidden', 'hide', { buf = buf })
end
end
if windows.input_buf and vim.api.nvim_buf_is_valid(windows.input_buf) then
local ok, lines = pcall(vim.api.nvim_buf_get_lines, windows.input_buf, 0, -1, false)
if ok then
state.ui.set_input_content(lines)
end
end
state.ui.stash_hidden_buffers(snapshot)
if state.windows == windows then
state.ui.mark_windows_hidden(snapshot.output_was_at_bottom)
end
end
---@param windows OpencodeWindowState?
function M.teardown_visible_windows(windows)
if not windows then
return
end
prepare_window_close()
local session_tabs = require('opencode.state.session_tabs')
if #session_tabs.list() > 1 then
renderer.reset()
else
renderer.teardown()
end
footer.close(false)
session_tab_strip.close(false, windows)
close_input_window(windows)
close_or_restore_output_window(windows)
input_window._hidden = false
pcall(vim.api.nvim_buf_delete, windows.input_buf, { force = true })
pcall(vim.api.nvim_buf_delete, windows.output_buf, { force = true })
if state.windows == windows then
state.ui.clear_windows()
end
state.ui.clear_hidden_window_state()
end
---@param windows? OpencodeWindowState|OpencodeHiddenBuffers
---@param hidden? OpencodeHiddenBuffers
function M.delete_window_buffers(windows, hidden)
local buffers = {}
local seen = {}
local function collect(source)
for _, key in ipairs({ 'input_buf', 'output_buf', 'footer_buf', 'tab_strip_buf' }) do
local bufnr = source and source[key]
if bufnr and not seen[bufnr] then
seen[bufnr] = true
table.insert(buffers, bufnr)
end
end
end
collect(windows)
collect(hidden)
for _, bufnr in ipairs(buffers) do
session_tab_strip.clear_buffer(bufnr)
if vim.api.nvim_buf_is_valid(bufnr) then
pcall(vim.api.nvim_buf_delete, bufnr, { force = true })
end
end
end
---Drop preserved hidden buffers and clear hidden window state.
function M.drop_hidden_snapshot()
local session_tabs = require('opencode.state.session_tabs')
if #session_tabs.list() > 1 then
renderer.reset()
else
renderer.teardown()
end
M.delete_window_buffers(state.ui.inspect_hidden_buffers())
input_window._hidden = false
state.ui.clear_hidden_window_state()
session_tabs.sync()
end
---Restore windows using preserved buffers
---@return boolean success
function M.restore_hidden_windows()
local hidden = state.ui.inspect_hidden_buffers()
if not hidden then
return false
end
local footer_buf = hidden.footer_buf
if not footer_buf or not vim.api.nvim_buf_is_valid(footer_buf) then
footer_buf = footer.create_buf()
end
local tab_strip_buf = hidden.tab_strip_buf
if not tab_strip_buf or not vim.api.nvim_buf_is_valid(tab_strip_buf) then
tab_strip_buf = session_tab_strip.create_buf()
end
local windows = {
input_buf = hidden.input_buf,
output_buf = hidden.output_buf,
footer_buf = footer_buf,
tab_strip_buf = tab_strip_buf,
position = config.ui.position,
}
local win_ids = M.create_split_windows(windows)
state.ui.consume_hidden_buffers()
windows.input_win = win_ids.input_win
windows.output_win = win_ids.output_win
windows.footer_win = nil
windows.tab_strip_win = win_ids.tab_strip_win
windows.output_was_at_bottom = hidden.output_was_at_bottom == true
windows.saved_width_ratio = state.last_window_width_ratio
state.ui.set_windows(windows)
state.ui.set_cursor_position('input', hidden.input_cursor)
state.ui.set_cursor_position('output', hidden.output_cursor)
input_window.setup(windows)
output_window.setup(windows)
footer.setup(windows)
session_tab_strip.setup(windows)
topbar.setup()
if hidden.input_hidden then
input_window._hide()
else
input_window._hidden = false
end
vim.schedule(function()
local w = state.windows
if not w then
return
end
if hidden.output_was_at_bottom then
renderer.scroll_to_bottom(true)
else
restore_window_cursor(w.output_win, w.output_buf, state.ui.get_cursor_position('output'))
if type(hidden.output_view) == 'table' then
pcall(vim.api.nvim_win_call, w.output_win, function()
vim.fn.winrestview(hidden.output_view)
end)
end
end
if not hidden.input_hidden then
restore_window_cursor(w.input_win, w.input_buf, state.ui.get_cursor_position('input'))
end
end)
renderer.on_windows_mounted()
return true
end
---Check if we have valid hidden buffers
---@return boolean
function M.has_hidden_buffers()
return state.ui.has_hidden_buffers()
end
---Return focus to the window that was active before opening Opencode.
function M.return_to_last_code_win()
local last_win = state.last_code_win_before_opencode
if last_win and vim.api.nvim_win_is_valid(last_win) then
vim.api.nvim_set_current_win(last_win)
end
end
---@param existing? OpencodeWindowState
---@return { input_buf: integer, output_buf: integer, footer_buf: integer, tab_strip_buf: integer }
function M.setup_buffers(existing)
local input_buf = existing and existing.input_buf
if not input_buf or not vim.api.nvim_buf_is_valid(input_buf) then
input_buf = input_window.create_buf()
end
local output_buf = existing and existing.output_buf
if not output_buf or not vim.api.nvim_buf_is_valid(output_buf) then
output_buf = output_window.create_buf()
end
local footer_buf = existing and existing.footer_buf
if not footer_buf or not vim.api.nvim_buf_is_valid(footer_buf) then
footer_buf = footer.create_buf()
end
local tab_strip_buf = existing and existing.tab_strip_buf
if not tab_strip_buf or not vim.api.nvim_buf_is_valid(tab_strip_buf) then
tab_strip_buf = session_tab_strip.create_buf()
end
return {
input_buf = input_buf,
output_buf = output_buf,
footer_buf = footer_buf,
tab_strip_buf = tab_strip_buf,
}
end
---@param direction 'left' | 'right' | 'top' | 'bottom'
---@param type 'vertical' | 'horizontal'
local function open_split(direction, type)
if type == 'vertical' then
vim.cmd((direction == 'left' and 'topleft' or 'botright') .. ' vsplit')
else
vim.cmd((direction == 'top' and 'aboveleft' or 'belowright') .. ' split')
end
return vim.api.nvim_get_current_win()
end
---@param windows OpencodeWindowState
---@return { input_win: integer, output_win: integer, tab_strip_win: integer }
local function open_float(windows)
local output_config, input_config = float_layout.window_configs(windows, true)
local output_win = float_layout.open_win(windows.output_buf, true, output_config)
local input_win = float_layout.open_win(windows.input_buf, true, input_config)
windows.output_win = output_win
windows.input_win = input_win
local tab_strip_win = session_tab_strip.create_window(windows)
return { input_win = input_win, output_win = output_win, tab_strip_win = tab_strip_win }
end
---@param windows OpencodeWindowState
---@return { input_win: integer, output_win: integer, tab_strip_win: integer }
function M.create_split_windows(windows)
if input_window.mounted() or output_window.mounted() then
M.close_windows(state.windows, false)
end
if windows.position == 'float' then
return open_float(windows)
end
local main_win
if windows.position == 'current' then
main_win = vim.api.nvim_get_current_win()
window_options.save_window_options(main_win)
else
main_win = open_split(windows.position, 'vertical')
end
vim.api.nvim_set_current_win(main_win)
local input_win = open_split(config.ui.input_position, 'horizontal')
local output_win = main_win
if windows.position == 'current' then
pcall(vim.api.nvim_set_option_value, 'winfixbuf', false, { win = output_win })
end
vim.api.nvim_win_set_buf(input_win, windows.input_buf)
vim.api.nvim_win_set_buf(output_win, windows.output_buf)
windows.output_win = output_win
windows.input_win = input_win
local tab_strip_win = session_tab_strip.create_window(windows)
return { input_win = input_win, output_win = output_win, tab_strip_win = tab_strip_win }
end
---Create, restore, or reuse panel windows and apply the requested focus.
---@param action 'reuse_visible'|'restore_hidden'|'create_fresh'
---@param opts OpenOpts
---@return boolean created True when fresh windows were created and output may need rendering.
function M.prepare_windows(action, opts)
local was_closed = action ~= 'reuse_visible'
local created = false
if was_closed then
if not M.is_opencode_focused() then
state.ui.set_code_context(vim.api.nvim_get_current_win(), vim.api.nvim_get_current_buf())
end
local restored = action == 'restore_hidden' and M.restore_hidden_windows()
if not restored then
if action == 'restore_hidden' then
state.ui.clear_hidden_window_state()
end
state.ui.set_windows(M.create_windows())
created = true
end
end
if opts.focus == 'input' then
M.focus_input({ restore_position = was_closed, start_insert = opts.start_insert == true })
elseif opts.focus == 'output' then
M.focus_output({ restore_position = was_closed })
end
return created
end
---@return OpencodeWindowState
function M.create_windows()
if config.ui.enable_treesitter_markdown then
local ok, treesitter = pcall(function()
return vim.treesitter
end)
if ok and treesitter and treesitter.language and treesitter.language.register then
treesitter.language.register('markdown', 'opencode_output')
treesitter.language.register('markdown', 'opencode')
end
end
if not M.is_opencode_focused() then
state.ui.set_code_context(vim.api.nvim_get_current_win(), vim.api.nvim_get_current_buf())
end
-- Create new windows from scratch
local previous_windows = state.windows
if previous_windows and (input_window.mounted(previous_windows) or output_window.mounted(previous_windows)) then
previous_windows = nil
end
local windows = M.setup_buffers(previous_windows)
windows.position = previous_windows and previous_windows.position or config.ui.position
windows.output_folds = previous_windows and previous_windows.output_folds or nil
local win_ids = M.create_split_windows(windows)
windows.input_win = win_ids.input_win
windows.output_win = win_ids.output_win
windows.tab_strip_win = win_ids.tab_strip_win
windows.saved_width_ratio = state.last_window_width_ratio
input_window.setup(windows)
output_window.setup(windows)
footer.setup(windows)
session_tab_strip.setup(windows)
topbar.setup()
renderer.setup_subscriptions()
return windows
end
---@return boolean
function M.active_session_allows_input()
if not config.child_readonly or not state.active_session then
return true
end
local observation = state.session.active_observation()
if not observation then
return false
end
local observed = observation:read()
return observed.sync
and observed.sync.session
and observed.sync.session.state == 'current'
and observed.session
and not observed.session.parentID
or false
end
---Restore input visibility and focus for the active session in a visible panel.
function M.focus_active_session()
if not M.active_session_allows_input() then
if not input_window.is_hidden() then
input_window._hide()
end
M.focus_output()
return
end
if input_window.is_hidden() then
input_window._show()
end
M.focus_input()
end
---@param opts? { restore_position?: boolean, start_insert?: boolean }
function M.focus_input(opts)
if not M.active_session_allows_input() then
return
end
opts = opts or {}
local windows = state.windows
if not windows then
return
end
local was_input_focused = vim.api.nvim_get_current_win() == windows.input_win
if input_window.is_hidden() then
input_window._show()
was_input_focused = false
end
if not windows.input_win then
return
end
vim.api.nvim_set_current_win(windows.input_win)
state.ui.set_last_focused_window('input')
if opts.restore_position and not was_input_focused and state.last_input_window_position then
pcall(vim.api.nvim_win_set_cursor, 0, state.last_input_window_position)
end
if vim.api.nvim_get_current_win() == windows.input_win and opts.start_insert then
if vim.fn.mode() ~= 'i' then
vim.api.nvim_feedkeys('a', 'n', false)
end
end
end
---@param opts? { restore_position?: boolean }
function M.focus_output(opts)
opts = opts or {}
local windows = state.windows
if not windows or not windows.output_win then
return
end
vim.api.nvim_set_current_win(windows.output_win)
state.ui.set_last_focused_window('output')
if opts.restore_position and state.last_output_window_position then
pcall(vim.api.nvim_win_set_cursor, 0, state.last_output_window_position)
end
end
---@return boolean
function M.is_opencode_focused()
if not state.windows then
return false
end
local current_win = vim.api.nvim_get_current_win()
return M.is_opencode_window(current_win)
end
---@param win integer
---@return boolean
function M.is_opencode_window(win)
local windows = state.windows
if not windows then
return false
end
return win == windows.input_win or win == windows.output_win or win == windows.tab_strip_win
end
---@return boolean
function M.is_output_empty()
local windows = state.windows
if not windows or not windows.output_buf then
return true
end
local lines = vim.api.nvim_buf_get_lines(windows.output_buf, 0, -1, false)
return #lines == 0 or (#lines == 1 and lines[1] == '')
end
---Reset renderer state and clear all visible output UI.
function M.clear_output()
renderer.reset()
output_window.clear()
footer.clear()
-- state.restore_points = {}
end
---Re-render the output buffer from the active Observation, avoiding a server round-trip.
---Used for display-only toggles (show_reasoning_output, show_output, max_messages).
function M.render_output_from_cache()
renderer.render_from_cache()
end
---Render the current observation synchronously without a server round-trip.
---@return boolean rendered
function M.render_output()
return renderer.render_full_session()
end
---@param lines string[]
function M.render_lines(lines)
M.clear_output()
renderer.render_lines(lines)
end
---Switch focus between the input and output panes.
function M.toggle_pane()
local current_win = vim.api.nvim_get_current_win()
if state.windows and current_win == state.windows.input_win then
output_window.focus_output(true)
else
if not M.active_session_allows_input() then
return
end
input_window.focus_input()
end
end
---Toggle the current Opencode window width between normal and zoomed.
function M.toggle_zoom()
local windows = state.windows
if not windows or not (windows.output_win or windows.input_win) then
return
end
local width
if state.pre_zoom_width then
width = state.pre_zoom_width
state.ui.set_pre_zoom_width(nil)
else
state.ui.set_pre_zoom_width(vim.api.nvim_win_get_width(windows.output_win))
width = math.floor(config.ui.zoom_width * vim.o.columns)
end
---@param win integer|nil
local function resize_window(win)
if not win or not vim.api.nvim_win_is_valid(win) then
return
end
local win_config = vim.api.nvim_win_get_config(win)
if win_config.relative ~= '' then
vim.api.nvim_win_set_config(win, { width = width })
else
vim.api.nvim_win_set_width(win, width)
end
end
if windows.input_win ~= nil then
resize_window(windows.input_win)
end
if windows.output_win ~= nil then
resize_window(windows.output_win)
end
session_tab_strip.update_window(windows)
end
return M