309 lines
11 KiB
Rust
309 lines
11 KiB
Rust
use std::result;
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use std::sync::Arc;
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use neovim_lib::{UiOption, Value};
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use neovim_lib::neovim_api::Tabpage;
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use ui::UiMutex;
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use shell;
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use gtk::ClipboardExt;
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use value::ValueMapExt;
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use rmpv;
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use super::repaint_mode::RepaintMode;
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use super::handler::NvimHandler;
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macro_rules! try_str {
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($exp:expr) => ($exp.as_str().ok_or_else(|| "Can't convert argument to string".to_owned())?)
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}
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macro_rules! try_int {
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($expr:expr) => ($expr.as_i64().ok_or_else(|| "Can't convert argument to int".to_owned())?)
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}
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macro_rules! try_uint {
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($exp:expr) => ($exp.as_u64().ok_or_else(|| "Can't convert argument to u64".to_owned())?)
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}
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macro_rules! try_bool {
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($exp:expr) => ($exp.as_bool().ok_or_else(|| "Can't convert argument to bool".to_owned())?)
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}
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macro_rules! map_array {
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($arg:expr, $err:expr, |$item:ident| $exp:expr) => (
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$arg.as_array()
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.ok_or_else(|| $err)
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.and_then(|items| items.iter().map(|$item| {
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$exp
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}).collect::<Result<Vec<_>, _>>())
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);
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($arg:expr, $err:expr, |$item:ident| {$exp:expr}) => (
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$arg.as_array()
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.ok_or_else(|| $err)
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.and_then(|items| items.iter().map(|$item| {
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$exp
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}).collect::<Result<Vec<_>, _>>())
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);
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}
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macro_rules! try_arg {
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($value:expr, bool) => (try_bool!($value));
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($value:expr, uint) => (try_uint!($value));
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($value:expr, int) => (try_int!($value));
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($value:expr, str) => (
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match $value {
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Value::String(s) => {
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if let Some(s) = s.into_str() {
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Ok(s)
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} else {
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Err("Can't convert to utf8 string".to_owned())
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}
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}
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_ => Err("Can't convert to string".to_owned()),
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}?);
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($value:expr, ext) => (rmpv::ext::from_value($value).map_err(|e| e.to_string())?);
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}
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macro_rules! call {
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($s:ident -> $c:ident ($args:ident : $($arg_type:ident),+ )) => (
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{
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let mut iter = $args.into_iter();
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$s.$c($(
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try_arg!(iter.next()
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.ok_or_else(|| format!("No such argument for {}", stringify!($c)))?,
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$arg_type
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)
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),+ )
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}
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)
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}
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pub fn call_gui_event(
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ui: &mut shell::State,
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method: &str,
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args: Vec<Value>,
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) -> result::Result<(), String> {
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match method {
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"Font" => call!(ui->set_font(args: str)),
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"FontFeatures" => call!(ui->set_font_features(args: str)),
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"Clipboard" => match try_str!(args[0]) {
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"Set" => match try_str!(args[1]) {
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"*" => ui.clipboard_primary_set(try_str!(args[2])),
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_ => ui.clipboard_clipboard_set(try_str!(args[2])),
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},
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opt => error!("Unknown option {}", opt),
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},
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"Option" => match try_str!(args[0]) {
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"Popupmenu" => ui.nvim()
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.ok_or_else(|| "Nvim not initialized".to_owned())
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.and_then(|mut nvim| {
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nvim.set_option(UiOption::ExtPopupmenu(try_uint!(args[1]) == 1))
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.map_err(|e| e.to_string())
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})?,
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"Tabline" => ui.nvim()
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.ok_or_else(|| "Nvim not initialized".to_owned())
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.and_then(|mut nvim| {
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nvim.set_option(UiOption::ExtTabline(try_uint!(args[1]) == 1))
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.map_err(|e| e.to_string())
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})?,
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"Cmdline" => ui.nvim()
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.ok_or_else(|| "Nvim not initialized".to_owned())
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.and_then(|mut nvim| {
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nvim.set_option(UiOption::ExtCmdline(try_uint!(args[1]) == 1))
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.map_err(|e| e.to_string())?;
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nvim.set_option(UiOption::ExtWildmenu(try_uint!(args[1]) == 1))
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.map_err(|e| e.to_string())
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})?,
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opt => error!("Unknown option {}", opt),
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},
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"Command" => {
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ui.on_command(args);
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}
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_ => return Err(format!("Unsupported event {}({:?})", method, args)),
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}
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Ok(())
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}
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pub fn call_gui_request(
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ui: &Arc<UiMutex<shell::State>>,
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method: &str,
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args: &Vec<Value>,
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) -> result::Result<Value, Value> {
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match method {
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"Clipboard" => {
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match try_str!(args[0]) {
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"Get" => {
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// NOTE: wait_for_text waits on the main loop. We can't have the ui borrowed
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// while it runs, otherwise ui callbacks will get called and try to borrow
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// mutably twice!
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let clipboard = {
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let ui = &mut ui.borrow_mut();
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match try_str!(args[1]) {
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"*" => ui.clipboard_primary.clone(),
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_ => ui.clipboard_clipboard.clone(),
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}
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};
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let t = clipboard.wait_for_text().unwrap_or_else(|| String::new());
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Ok(Value::Array(
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t.split("\n").map(|s| s.into()).collect::<Vec<Value>>(),
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))
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}
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opt => {
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error!("Unknown option {}", opt);
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Err(Value::Nil)
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}
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}
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}
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_ => Err(Value::String(
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format!("Unsupported request {}({:?})", method, args).into(),
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)),
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}
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}
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pub fn call(
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ui: &mut shell::State,
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method: &str,
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args: Vec<Value>,
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) -> result::Result<RepaintMode, String> {
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let repaint_mode = match method {
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"cursor_goto" => call!(ui->on_cursor_goto(args: uint, uint)),
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"put" => call!(ui->on_put(args: str)),
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"clear" => ui.on_clear(),
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"resize" => call!(ui->on_resize(args: uint, uint)),
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"highlight_set" => {
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call!(ui->on_highlight_set(args: ext));
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RepaintMode::Nothing
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}
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"eol_clear" => ui.on_eol_clear(),
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"set_scroll_region" => {
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call!(ui->on_set_scroll_region(args: uint, uint, uint, uint));
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RepaintMode::Nothing
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}
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"scroll" => call!(ui->on_scroll(args: int)),
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"update_bg" => call!(ui->on_update_bg(args: int)),
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"update_fg" => call!(ui->on_update_fg(args: int)),
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"update_sp" => call!(ui->on_update_sp(args: int)),
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"mode_change" => call!(ui->on_mode_change(args: str, uint)),
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"mouse_on" => ui.on_mouse(true),
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"mouse_off" => ui.on_mouse(false),
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"busy_start" => ui.on_busy(true),
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"busy_stop" => ui.on_busy(false),
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"popupmenu_show" => {
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let menu_items = map_array!(args[0], "Error get menu list array", |item| map_array!(
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item,
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"Error get menu item array",
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|col| col.as_str().ok_or("Error get menu column")
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))?;
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ui.popupmenu_show(
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&CompleteItem::map(&menu_items),
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try_int!(args[1]),
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try_uint!(args[2]),
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try_uint!(args[3]),
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)
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}
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"popupmenu_hide" => ui.popupmenu_hide(),
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"popupmenu_select" => call!(ui->popupmenu_select(args: int)),
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"tabline_update" => {
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let tabs_out = map_array!(args[1], "Error get tabline list".to_owned(), |tab| {
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tab.as_map()
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.ok_or_else(|| "Error get map for tab".to_owned())
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.and_then(|tab_map| tab_map.to_attrs_map())
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.map(|tab_attrs| {
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let name_attr = tab_attrs
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.get("name")
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.and_then(|n| n.as_str().map(|s| s.to_owned()));
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let tab_attr = tab_attrs
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.get("tab")
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.map(|&tab_id| Tabpage::new(tab_id.clone()))
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.unwrap();
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(tab_attr, name_attr)
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})
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})?;
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ui.tabline_update(Tabpage::new(args[0].clone()), tabs_out)
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}
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"mode_info_set" => call!(ui->mode_info_set(args: bool, ext)),
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"cmdline_show" => call!(ui->cmdline_show(args: ext, uint, str, str, uint, uint)),
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"cmdline_block_show" => call!(ui->cmdline_block_show(args: ext)),
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"cmdline_block_append" => call!(ui->cmdline_block_append(args: ext)),
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"cmdline_hide" => call!(ui->cmdline_hide(args: uint)),
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"cmdline_block_hide" => ui.cmdline_block_hide(),
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"cmdline_pos" => call!(ui->cmdline_pos(args: uint, uint)),
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"cmdline_special_char" => call!(ui->cmdline_special_char(args: str, bool, uint)),
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"wildmenu_show" => call!(ui->wildmenu_show(args: ext)),
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"wildmenu_hide" => ui.wildmenu_hide(),
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"wildmenu_select" => call!(ui->wildmenu_select(args: int)),
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_ => {
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warn!("Event {}({:?})", method, args);
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RepaintMode::Nothing
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}
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};
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Ok(repaint_mode)
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}
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// Here two cases processed:
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//
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// 1. menu content update call popupmenu_hide followed by popupmenu_show in same batch
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// this generates unneeded hide event
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// so in case we get both events, just romove one
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//
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// 2. postpone hide event when "show" event come bit later
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// but in new event batch
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pub fn remove_or_delay_uneeded_events(handler: &NvimHandler, params: &mut Vec<Value>) {
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let mut show_popup_finded = false;
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let mut to_remove = Vec::new();
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let mut delayed_hide_event = None;
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for (idx, val) in params.iter().enumerate().rev() {
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if let Some(args) = val.as_array() {
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match args[0].as_str() {
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Some("popupmenu_show") => {
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show_popup_finded = true;
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handler.remove_scheduled_redraw_event();
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}
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Some("popupmenu_hide") if !show_popup_finded && delayed_hide_event.is_none() => {
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to_remove.push(idx);
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delayed_hide_event = Some(idx);
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handler.remove_scheduled_redraw_event();
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}
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Some("popupmenu_hide") => {
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to_remove.push(idx);
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}
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_ => (),
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}
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}
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}
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to_remove.iter().for_each(|&idx| {
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let ev = params.remove(idx);
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if let Some(delayed_hide_event_idx) = delayed_hide_event {
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if delayed_hide_event_idx == idx {
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handler.schedule_redraw_event(ev);
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}
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}
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});
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}
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pub struct CompleteItem<'a> {
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pub word: &'a str,
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pub kind: &'a str,
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pub menu: &'a str,
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pub info: &'a str,
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}
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impl<'a> CompleteItem<'a> {
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fn map(menu: &'a [Vec<&str>]) -> Vec<Self> {
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menu.iter()
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.map(|menu| CompleteItem {
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word: menu[0],
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kind: menu[1],
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menu: menu[2],
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info: menu[3],
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})
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.collect()
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}
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}
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