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| author |  Héctor Ramón Jiménez <hector@hecrj.dev> | 2023-11-29 22:28:31 +0100 |
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| committer | Héctor Ramón Jiménez <hector@hecrj.dev> | 2023-11-29 22:28:31 +0100 |
| commit | e09b4e24dda51b8212d8ece52431dacaa3922a7b (patch) | |
| tree | 7005e181528134ebdde5bbbe5909273db9f30174 /futures/src/keyboard.rs | |
| parent | 83c7870c569a2976923ee6243a19813094d44673 (diff) | |
| parent | 7f8b17604a31e00becc43130ec516c1a53552c88 (diff) | |
| download | iced-e09b4e24dda51b8212d8ece52431dacaa3922a7b.tar.gz iced-e09b4e24dda51b8212d8ece52431dacaa3922a7b.tar.bz2 iced-e09b4e24dda51b8212d8ece52431dacaa3922a7b.zip | |
Merge branch 'master' into feat/multi-window-support
Diffstat (limited to 'futures/src/keyboard.rs')
| -rw-r--r-- | futures/src/keyboard.rs | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/futures/src/keyboard.rs b/futures/src/keyboard.rs new file mode 100644 index 00000000..af68e1f2 --- /dev/null +++ b/futures/src/keyboard.rs @@ -0,0 +1,61 @@ +//! Listen to keyboard events. +use crate::core; +use crate::core::keyboard::{Event, KeyCode, Modifiers}; +use crate::subscription::{self, Subscription}; +use crate::MaybeSend; + +/// Listens to keyboard key presses and calls the given function +/// map them into actual messages. +/// +/// If the function returns `None`, the key press will be simply +/// ignored. +pub fn on_key_press<Message>( + f: fn(KeyCode, Modifiers) -> Option<Message>, +) -> Subscription<Message> +where + Message: MaybeSend + 'static, +{ + #[derive(Hash)] + struct OnKeyPress; + + subscription::filter_map((OnKeyPress, f), move |event, status| { + match (event, status) { + ( + core::Event::Keyboard(Event::KeyPressed { + key_code, + modifiers, + }), + core::event::Status::Ignored, + ) => f(key_code, modifiers), + _ => None, + } + }) +} + +/// Listens to keyboard key releases and calls the given function +/// map them into actual messages. +/// +/// If the function returns `None`, the key release will be simply +/// ignored. +pub fn on_key_release<Message>( + f: fn(KeyCode, Modifiers) -> Option<Message>, +) -> Subscription<Message> +where + Message: MaybeSend + 'static, +{ + #[derive(Hash)] + struct OnKeyRelease; + + subscription::filter_map((OnKeyRelease, f), move |event, status| { + match (event, status) { + ( + core::Event::Keyboard(Event::KeyReleased { + key_code, + modifiers, + }), + core::event::Status::Ignored, + ) => f(key_code, modifiers), + _ => None, + } + }) +} |