152 lines
5.4 KiB
Rust
152 lines
5.4 KiB
Rust
use std::{borrow::BorrowMut, str::FromStr};
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use serde::{Deserialize, Serialize};
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use strum::IntoEnumIterator;
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use super::{
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parser::{ArgParser, FromCommandArgs, ParseError},
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window::Window,
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Monitor, TagSelect, ToCommandString,
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};
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#[derive(Debug, Clone, Serialize, Deserialize, strum::Display, strum::EnumIter, PartialEq)]
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#[strum(serialize_all = "snake_case")]
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pub enum Hook {
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/// The attribute `path` was changed from `old` to `new`.
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/// Requires that the attribute `path` has been passed to the [HlwmCommand::Watch] command before.
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AttributeChanged {
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path: String,
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old: String,
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new: String,
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},
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/// The fullscreen state of `window` was changed to [on|off].
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Fullscreen {
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on: bool,
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window: Window,
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},
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/// The `tag` was selected on `monitor`.
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TagChanged {
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tag: String,
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monitor: Monitor,
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},
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/// The `window` with title `title` was focused
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FocusChanged {
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window: Window,
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title: String,
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},
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WindowTitleChanged {
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window: Window,
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title: String,
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},
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/// The flags (i.e. urgent or filled state) have been changed.
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TagFlags,
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TagAdded(TagSelect),
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TagRenamed {
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old: String,
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new: String,
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},
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Urgent {
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on: bool,
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window: Window,
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},
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/// A `window` appeared which triggered a rule/hook.
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Rule {
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hook: String,
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window: Window,
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},
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/// Tells a panel to quit. The default panel.sh quits on this hook. Many scripts are using this hook.
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QuitPanel,
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/// Tells all daemons that the autostart file is reloaded — and tells them to quit.
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/// This hook **should** be emitted in the first line of every autostart file.
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Reload,
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}
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impl FromCommandArgs for Hook {
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fn from_command_args<S: Into<String>, I: IntoIterator<Item = S>>(
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cmd: &str,
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args: I,
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) -> Result<Self, super::parser::ParseError> {
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let mut command = Self::iter()
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.find(|c: &Hook| c.to_string() == cmd)
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.ok_or(ParseError::InvalidCommand(cmd.to_string()))?;
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let x = args.into_iter().map(|i| i.into()).collect::<Vec<String>>();
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let mut parser = ArgParser::from_strings(x.into_iter());
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match command.borrow_mut() {
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Hook::QuitPanel | Hook::Reload | Hook::TagFlags => (),
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Hook::AttributeChanged { path, old, new } => {
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*path = parser.must_string("attribute_changed(path)")?;
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*old = parser.must_string("attribute_changed(old)")?;
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*new = parser.must_string("attribute_changed(new)")?;
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}
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Hook::Fullscreen { on, window } => {
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*on = parser.next_from_str("fullscreen(on)")?;
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*window = parser.next_from_str("fullscreen(window)")?;
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}
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Hook::TagChanged { tag, monitor } => {
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*tag = parser.must_string("tag_changed(tag)")?;
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*monitor = parser.next_from_str("tag_changed(monitor)")?;
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}
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Hook::FocusChanged { window, title } | Hook::WindowTitleChanged { window, title } => {
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*window = parser.next_from_str(&format!("{cmd}(window)"))?;
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*title = parser.must_string(&format!("{cmd}(title)"))?;
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}
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Hook::TagAdded(tag) => {
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*tag = TagSelect::from_str(&parser.must_string(cmd)?).expect("infallible")
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}
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Hook::TagRenamed { old, new } => {
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*old = parser.must_string("tag_renamed(old)")?;
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*new = parser.must_string("tag_renamed(new)")?;
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}
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Hook::Urgent { on, window } => {
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*on = parser.next_from_str("urgent(on)")?;
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*window = parser.next_from_str("urgent(window)")?;
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}
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Hook::Rule { hook, window } => {
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*hook = parser.must_string("rule(hook)")?;
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*window = parser.next_from_str("rule(window)")?;
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}
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}
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Ok(command)
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}
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}
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impl Default for Hook {
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fn default() -> Self {
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Self::Reload
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}
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}
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impl ToCommandString for Hook {
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fn to_command_string(&self) -> String {
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[self.to_string()]
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.into_iter()
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.chain(match self {
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Hook::AttributeChanged { path, old, new } => {
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vec![path.to_string(), old.to_string(), new.to_string()].into_iter()
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}
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Hook::Fullscreen { on, window } => {
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vec![on.to_string(), window.to_string()].into_iter()
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}
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Hook::TagChanged { tag, monitor } => {
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vec![tag.to_string(), monitor.to_string()].into_iter()
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}
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Hook::WindowTitleChanged { window, title }
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| Hook::FocusChanged { window, title } => {
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vec![window.to_string(), title.to_string()].into_iter()
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}
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Hook::QuitPanel | Hook::Reload | Hook::TagFlags => vec![].into_iter(),
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Hook::TagAdded(tag) => vec![tag.to_string()].into_iter(),
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Hook::TagRenamed { old, new } => vec![old.to_string(), new.to_string()].into_iter(),
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Hook::Urgent { on, window } => vec![on.to_string(), window.to_string()].into_iter(),
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Hook::Rule { hook, window } => {
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vec![hook.to_string(), window.to_string()].into_iter()
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}
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})
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.collect::<Vec<_>>()
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.join("\t")
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}
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}
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