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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| use std::{fs, path::PathBuf}; | ||
|
|
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| use color_eyre::Result; | ||
| use serde::{Deserialize, Serialize}; | ||
| use tauri::{LogicalSize, Monitor, PhysicalPosition, PhysicalSize, Window}; | ||
|
|
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| static STATE_FILENAME: &str = ".window-state.json"; | ||
|
|
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| #[derive(Serialize, Deserialize, Debug, Default)] | ||
| pub struct WindowState { | ||
| maximized: bool, | ||
| width: f64, | ||
| height: f64, | ||
| x: i32, | ||
| y: i32, | ||
| #[serde(skip)] | ||
| old: bool, | ||
| } | ||
|
|
||
| impl WindowState { | ||
| pub fn open_state(path: PathBuf) -> Option<Self> { | ||
| if let Ok(file) = fs::File::open(path.join(STATE_FILENAME)) { | ||
| return serde_json::from_reader(file) | ||
| .map(|mut s: WindowState| { | ||
| s.old = true; | ||
| s | ||
| }) | ||
| .ok(); | ||
| } | ||
| None | ||
| } | ||
|
|
||
| pub fn is_old(&self) -> bool { | ||
| self.old | ||
| } | ||
|
|
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| pub fn save_state(&self, path: PathBuf) -> Result<()> { | ||
| if !path.exists() { | ||
| fs::create_dir(&path)? | ||
| } | ||
| let file = fs::File::create(path.join(STATE_FILENAME))?; | ||
| serde_json::to_writer(file, self)?; | ||
| Ok(()) | ||
| } | ||
|
|
||
| pub fn update_state( | ||
| &mut self, | ||
| window: &Window, | ||
| ignore_maximized: bool, | ||
| ) -> Result<()> { | ||
| let maximized = window.is_maximized()?; | ||
| self.maximized = maximized || (self.maximized && ignore_maximized); | ||
| // We early return when it's maximized because we dont have to save the state | ||
| // of the rest of the window when it's maximized. | ||
| if maximized { | ||
| return Ok(()); | ||
| } | ||
| let scale_factor = window.scale_factor()?; | ||
| let size = window.outer_size()?.to_logical::<f64>(scale_factor); | ||
| let pos = window.outer_position()?; | ||
|
|
||
| self.width = size.width; | ||
| self.height = size.height; | ||
|
|
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| self.x = pos.x; | ||
| self.y = pos.y; | ||
| Ok(()) | ||
| } | ||
|
|
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| pub fn update_window(&self, window: &Window, ignore_maximized: bool) -> Result<()> { | ||
| let maximized = !ignore_maximized && window.is_maximized()?; | ||
| if maximized && !self.maximized { | ||
| window.unmaximize()?; | ||
| } | ||
|
|
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| window.set_size(LogicalSize::new(self.width, self.height))?; | ||
|
|
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| let pos = PhysicalPosition::new(self.x, self.y); | ||
| for monitor in window.available_monitors()? { | ||
| if monitor.contains(pos) { | ||
| window.set_position(pos)?; | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| if !ignore_maximized && !maximized && self.maximized { | ||
| window.maximize()?; | ||
| } | ||
|
|
||
| Ok(()) | ||
| } | ||
| } | ||
|
|
||
| pub trait MonitorExt { | ||
| fn contains(&self, position: PhysicalPosition<i32>) -> bool; | ||
| } | ||
|
|
||
| /// Allowed amount to overflow out of the screen | ||
| const ALLOWED_OVERFLOW: i32 = 16; | ||
| impl MonitorExt for Monitor { | ||
| fn contains(&self, position: PhysicalPosition<i32>) -> bool { | ||
| let PhysicalPosition { x, y } = *self.position(); | ||
| let PhysicalSize { width, height } = *self.size(); | ||
|
|
||
| (x < position.x + ALLOWED_OVERFLOW) as _ | ||
| && (position.x - ALLOWED_OVERFLOW) < (x + width as i32) | ||
| && (y - ALLOWED_OVERFLOW) < position.y as _ | ||
| && (position.y + ALLOWED_OVERFLOW) < (y + height as i32) | ||
| } | ||
| } |
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