pref: 截图改用自定义协议传递。
This commit is contained in:
17
src-tauri/Cargo.lock
generated
17
src-tauri/Cargo.lock
generated
@ -2653,12 +2653,14 @@ dependencies = [
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"env_logger",
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"log",
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"paris",
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"percent-encoding",
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"png",
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"serde",
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"serde_json",
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"tauri",
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"tauri-build",
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"tokio",
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"url-build-parse",
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"webp",
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]
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@ -2913,6 +2915,21 @@ dependencies = [
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"serde",
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]
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[[package]]
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name = "url-build-parse"
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version = "9.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "434debbcbb26557225df912efe7949c6d1237defa81ae14d05a9cd8b7ffa2776"
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dependencies = [
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"url-search-params",
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]
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[[package]]
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name = "url-search-params"
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version = "9.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e84890540c25e90ae611bfbab7d8bfcd138f29af6495027478945c1427abf532"
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[[package]]
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name = "utf-8"
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version = "0.7.6"
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@ -26,6 +26,8 @@ tokio = {version = "1.26.0", features = ["full"] }
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paris = { version = "1.5", features = ["timestamps", "macros"] }
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log = "0.4.17"
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env_logger = "0.10.0"
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percent-encoding = "2.2.0"
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url-build-parse = "9.0.0"
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[features]
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# this feature is used for production builds or when `devPath` points to the filesystem
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@ -9,10 +9,11 @@ use core_graphics::display::{
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kCGNullWindowID, kCGWindowImageDefault, kCGWindowListOptionOnScreenOnly, CGDisplay,
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};
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use display_info::DisplayInfo;
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use paris::error;
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use paris::{error, info};
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use screenshot_manager::ScreenshotManager;
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use serde::{Deserialize, Serialize};
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use serde_json::to_string;
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use tauri::{http::ResponseBuilder, regex};
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#[derive(Serialize, Deserialize)]
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#[serde(remote = "DisplayInfo")]
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@ -165,6 +166,122 @@ async fn main() {
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list_display_info,
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subscribe_encoded_screenshot_updated
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])
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.register_uri_scheme_protocol("ambient-light", move |_app, request| {
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info!("request: {:?}", request.uri());
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// prepare our response
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let response = ResponseBuilder::new().header("Access-Control-Allow-Origin", "*");
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// get the file path
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let uri = request.uri();
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let uri = percent_encoding::percent_decode_str(uri)
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.decode_utf8()
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.unwrap()
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.to_string();
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let url = url_build_parse::parse_url(uri.as_str());
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if let Err(err) = url {
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error!("url parse error: {}", err);
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return response
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.status(500)
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.mimetype("text/plain")
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.body("Parse uri failed.".as_bytes().to_vec());
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}
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let url = url.unwrap();
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let re = regex::Regex::new(r"^/displays/(\d+)$").unwrap();
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let path = url.path;
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let captures = re.captures(path.as_str());
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if let None = captures {
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error!("path not matched: {:?}", path);
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return response
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.status(404)
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.mimetype("text/plain")
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.body("Path Not Found.".as_bytes().to_vec());
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}
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let captures = captures.unwrap();
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let display_id = captures[1].parse::<u32>().unwrap();
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let bytes = tokio::task::block_in_place(move || {
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tauri::async_runtime::block_on(async move {
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let screenshot_manager = ScreenshotManager::global().await;
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let channels = screenshot_manager.channels.read().await;
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if let Some(rx) = channels.get(&display_id) {
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let rx = rx.clone();
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let screenshot = rx.borrow().clone();
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let bytes = screenshot.bytes.read().await;
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let (scale_factor, width, height) = if url.query.is_some()
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&& url.query.as_ref().unwrap().contains_key("height")
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&& url.query.as_ref().unwrap().contains_key("width")
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{
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let width =
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url.query.as_ref().unwrap()["width"].parse::<u32>().unwrap();
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let height = url.query.as_ref().unwrap()["height"]
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.parse::<u32>()
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.unwrap();
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(screenshot.width as f32 / width as f32, width, height)
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} else {
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info!("scale by scale_factor");
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let scale_factor = screenshot.scale_factor;
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(
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scale_factor,
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(screenshot.width as f32 / scale_factor) as u32,
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(screenshot.height as f32 / scale_factor) as u32,
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)
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};
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info!(
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"scale by query. width: {}, height: {}, scale_factor: {}, len: {}",
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width,
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height,
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screenshot.width as f32 / width as f32,
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width * height * 4,
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);
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let bytes_per_row = screenshot.bytes_per_row as f32;
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let mut rgba_buffer = vec![0u8; (width * height * 4) as usize];
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for y in 0..height {
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for x in 0..width {
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let offset = ((y as f32) * scale_factor) as usize * bytes_per_row as usize
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+ ((x as f32) * scale_factor) as usize * 4;
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let b = bytes[offset];
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let g = bytes[offset + 1];
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let r = bytes[offset + 2];
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let a = bytes[offset + 3];
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let offset_2 = (y * width + x) as usize * 4;
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rgba_buffer[offset_2] = r;
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rgba_buffer[offset_2 + 1] = g;
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rgba_buffer[offset_2 + 2] = b;
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rgba_buffer[offset_2 + 3] = a;
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}
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}
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Ok(rgba_buffer.clone())
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} else {
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anyhow::bail!("Display#{}: not found", display_id);
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}
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})
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});
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if let Ok(bytes) = bytes {
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return response
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.mimetype("octet/stream")
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.status(200)
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.body(bytes.to_vec());
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}
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let err = bytes.unwrap_err();
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error!("request screenshot bin data failed: {}", err);
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return response
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.mimetype("text/plain")
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.status(500)
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.body(err.to_string().into_bytes());
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})
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.run(tauri::generate_context!())
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.expect("error while running tauri application");
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}
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@ -44,7 +44,7 @@ pub fn take_screenshot(display_id: u32, scale_factor: f32) -> anyhow::Result<Scr
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}
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pub struct ScreenshotManager {
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channels: Arc<RwLock<HashMap<u32, watch::Receiver<Screenshot>>>>,
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pub channels: Arc<RwLock<HashMap<u32, watch::Receiver<Screenshot>>>>,
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encode_listeners: Arc<RwLock<HashMap<u32, Vec<Window>>>>,
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}
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