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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| use bytes::Bytes; | ||
| use handlebars::Handlebars; | ||
| use headless_chrome::{protocol::cdp::Page::CaptureScreenshotFormatOption, Browser, LaunchOptions}; | ||
| use serde::Serialize; | ||
| use std::fs; | ||
|
|
||
| use crate::utils::{IsacError, IsacInfo}; | ||
|
|
||
| pub struct Renderer { | ||
| browser: Browser, | ||
| reg: Handlebars<'static>, | ||
| } | ||
|
|
||
| impl Renderer { | ||
| pub fn launch() -> Self { | ||
| const TEMPLATE_PATH: &str = "./renderer/template/"; | ||
| // let args = [ | ||
| // "-allow-file-access-from-files", | ||
| // "-disable-web-security", | ||
| // "--no-sandbox", | ||
| // ] | ||
| // .into_iter() | ||
| // .map(OsStr::new) | ||
| // .collect(); | ||
|
|
||
| let browser = Browser::new( | ||
| LaunchOptions::default_builder() | ||
| .devtools(false) | ||
| // .args(args) | ||
| .build() | ||
| .unwrap(), | ||
| ) | ||
| .unwrap(); | ||
| let mut reg = Handlebars::new(); | ||
|
|
||
| let templates = fs::read_dir(TEMPLATE_PATH) | ||
| .unwrap() | ||
| .filter_map(|entry| { | ||
| entry.ok().and_then(|e| { | ||
| let path = e.path(); | ||
| if path.is_file() && path.extension().unwrap_or_default() == "hbs" { | ||
| Some(path) | ||
| } else { | ||
| None | ||
| } | ||
| }) | ||
| }) | ||
| .collect::<Vec<_>>(); | ||
| for path in templates { | ||
| reg.register_template_file(path.file_stem().unwrap().to_str().unwrap(), &path) | ||
| .unwrap(); | ||
| } | ||
| Self { browser, reg } | ||
| } | ||
|
|
||
| pub async fn render(&self, template: &str, data: impl Serialize) -> Result<Bytes, IsacError> { | ||
| let js_script = format!( | ||
| "document.write(`{}`);", | ||
| self.reg | ||
| .render(template, &data) | ||
| .unwrap() | ||
| .replace("`", "\\`") // Escape backticks in the HTML content | ||
| ); | ||
| let tab = self.browser.new_tab().unwrap(); | ||
| tab.evaluate(&js_script, false).unwrap(); | ||
| let img = tab | ||
| .find_element(".main") | ||
| .and_then(|element| element.capture_screenshot(CaptureScreenshotFormatOption::Png)) | ||
| .map_err(|_| IsacInfo::GeneralError { | ||
| msg: "screenshot failed".to_string(), | ||
| })?; | ||
| let _ = tab.close_target(); | ||
| Ok(Bytes::from(img)) | ||
| } | ||
| } | ||
|
|
||
| #[test] | ||
| fn lauch_renderer() { | ||
| Renderer::launch(); | ||
| } |
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