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neovide/src/window.rs

188 lines
6.7 KiB
Rust

use std::sync::{Arc, Mutex};
use std::time::{Duration, Instant};
use skulpin::{CoordinateSystem, RendererBuilder, PresentMode};
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use skulpin::skia_safe::icu;
use skulpin::winit::dpi::LogicalSize;
use skulpin::winit::event::{ElementState, Event, MouseScrollDelta, StartCause, WindowEvent};
use skulpin::winit::event_loop::{ControlFlow, EventLoop};
use skulpin::winit::window::WindowBuilder;
use neovim_lib::{Neovim, NeovimApi};
use crate::editor::Editor;
use crate::keybindings::construct_keybinding_string;
use crate::renderer::Renderer;
const EXTRA_LIVE_FRAMES: usize = 10;
pub fn ui_loop(editor: Arc<Mutex<Editor>>, nvim: Neovim, initial_size: (u64, u64)) {
let mut nvim = nvim;
let mut renderer = Renderer::new(editor.clone());
let event_loop = EventLoop::<()>::with_user_event();
let (width, height) = initial_size;
let logical_size = LogicalSize::new(
(width as f32 * renderer.font_width) as f64,
(height as f32 * renderer.font_height + 1.0) as f64
);
let window = Arc::new(WindowBuilder::new()
.with_title("Neovide")
.with_inner_size(logical_size)
.build(&event_loop)
.expect("Failed to create window"));
let mut skulpin_renderer = RendererBuilder::new()
.prefer_integrated_gpu()
.use_vulkan_debug_layer(true)
.present_mode_priority(vec![PresentMode::Mailbox, PresentMode::Immediate])
.coordinate_system(CoordinateSystem::Logical)
.build(&window)
.expect("Failed to create renderer");
let mut mouse_down = false;
let mut mouse_pos = (0, 0);
5 years ago
icu::init();
{
let mut editor = editor.lock().unwrap();
editor.window = Some(window.clone());
}
let mut live_frames = 0;
let mut frame_start = Instant::now();
event_loop.run(move |event, _window_target, control_flow| {
match event {
Event::NewEvents(StartCause::Init) |
Event::NewEvents(StartCause::ResumeTimeReached { .. }) => {
window.request_redraw()
},
Event::WindowEvent {
event: WindowEvent::CloseRequested,
..
} => *control_flow = ControlFlow::Exit,
Event::WindowEvent {
event: WindowEvent::Resized(new_size),
..
} => {
if new_size.width > 0.0 && new_size.height > 0.0 {
let new_width = ((new_size.width + 1.0) as f32 / renderer.font_width) as u64;
let new_height = ((new_size.height + 1.0) as f32 / renderer.font_height) as u64;
// Add 1 here to make sure resizing doesn't change the grid size on startup
nvim.ui_try_resize((new_width as i64).max(10), (new_height as i64).max(3)).expect("Resize failed");
}
},
Event::WindowEvent {
event: WindowEvent::KeyboardInput {
input,
..
},
..
} => {
if let Some(string) = construct_keybinding_string(input) {
nvim.input(&string).expect("Input call failed...");
}
},
Event::WindowEvent {
event: WindowEvent::CursorMoved {
position,
..
},
..
} => {
let grid_x = (position.x as f32 / renderer.font_width) as i64;
let grid_y = (position.y as f32 / renderer.font_height) as i64;
mouse_pos = (grid_x, grid_y);
if mouse_down {
nvim.input_mouse("left", "drag", "", 0, grid_y, grid_x).expect("Could not send mouse input");
}
}
Event::WindowEvent {
event: WindowEvent::MouseInput {
state,
..
},
..
} => {
let input_type = match state {
ElementState::Pressed => {
mouse_down = true;
"press"
},
ElementState::Released => {
mouse_down = false;
"release"
}
};
let (grid_x, grid_y) = mouse_pos;
nvim.input_mouse("left", input_type, "", 0, grid_y, grid_x).expect("Could not send mouse input");
}
Event::WindowEvent {
event: WindowEvent::MouseWheel {
delta: MouseScrollDelta::LineDelta(horizontal, vertical),
..
},
..
} => {
let vertical_input_type = if vertical > 0.0 {
Some("up")
} else if vertical < 0.0 {
Some("down")
} else {
None
};
if let Some(input_type) = vertical_input_type {
let (grid_x, grid_y) = mouse_pos;
nvim.input_mouse("wheel", input_type, "", 0, grid_y, grid_x).expect("Could not send mouse input");
}
let horizontal_input_type = if horizontal > 0.0 {
Some("right")
} else if horizontal < 0.0 {
Some("left")
} else {
None
};
if let Some(input_type) = horizontal_input_type {
let (grid_x, grid_y) = mouse_pos;
nvim.input_mouse("wheel", input_type, "", 0, grid_y, grid_x).expect("Could not send mouse input");
}
}
Event::WindowEvent {
event: WindowEvent::RedrawRequested,
..
} => {
frame_start = Instant::now();
if let Err(e) = skulpin_renderer.draw(&window.clone(), |canvas, coordinate_system_helper| {
if renderer.draw(canvas, coordinate_system_helper) {
live_frames = EXTRA_LIVE_FRAMES;
} else {
if live_frames > 0 {
live_frames = live_frames - 1;
}
}
if live_frames > 0 {
*control_flow = ControlFlow::WaitUntil(frame_start + Duration::from_secs_f32(1.0 / 60.0));
} else {
*control_flow = ControlFlow::Wait;
}
}) {
println!("Error during draw: {:?}", e);
*control_flow = ControlFlow::Exit
}
},
_ => {}
}
})
}