102 lines
2.4 KiB
Rust
102 lines
2.4 KiB
Rust
// Copyright 2023 System76 <info@system76.com>
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// SPDX-License-Identifier: MPL-2.0
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//! Subscribe to common application keyboard shortcuts.
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use iced::{
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event,
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keyboard::{self, KeyCode},
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mouse, subscription, Command, Event, Subscription,
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};
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use iced_core::{
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widget::{operation, Id, Operation},
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Rectangle,
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};
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#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
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pub enum Message {
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Escape,
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FocusNext,
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FocusPrevious,
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Fullscreen,
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Unfocus,
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Search,
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}
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pub fn subscription() -> Subscription<Message> {
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subscription::events_with(|event, status| {
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if event::Status::Ignored != status {
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return None;
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}
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match event {
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Event::Keyboard(keyboard::Event::KeyPressed {
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key_code,
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modifiers,
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}) => match key_code {
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KeyCode::Tab => {
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return Some(if modifiers.shift() {
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Message::FocusPrevious
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} else {
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Message::FocusNext
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});
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}
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KeyCode::Escape => {
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return Some(Message::Escape);
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}
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KeyCode::F11 => {
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return Some(Message::Fullscreen);
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}
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KeyCode::F => {
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return if modifiers.control() {
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Some(Message::Search)
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} else {
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None
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};
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}
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_ => (),
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},
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Event::Mouse(mouse::Event::ButtonPressed { .. }) => {
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return Some(Message::Unfocus);
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}
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_ => (),
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}
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None
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})
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}
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/// Unfocuses any actively-focused widget.
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pub fn unfocus<Message: 'static>() -> Command<Message> {
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Command::<Message>::widget(unfocus_operation())
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}
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#[must_use]
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fn unfocus_operation<T>() -> impl Operation<T> {
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struct Unfocus {}
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impl<T> Operation<T> for Unfocus {
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fn focusable(&mut self, state: &mut dyn operation::Focusable, _id: Option<&Id>) {
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if state.is_focused() {
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state.unfocus();
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}
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}
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fn container(
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&mut self,
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_id: Option<&Id>,
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_bounds: Rectangle,
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operate_on_children: &mut dyn FnMut(&mut dyn Operation<T>),
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) {
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operate_on_children(self);
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}
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}
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Unfocus {}
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}
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