Method preload

web/handler.go:985–1044

()

}

func (s *Handler) preload() {
	indexHtmlFilename := filepath.Join(s.config.AppDir, "index.html")
	indexHtmlFile, err := os.Open(indexHtmlFilename)
	if err != nil {
		return
	}
	defer indexHtmlFile.Close()
	entries := map[string]struct{}{}
	tokenizer := html.NewTokenizer(indexHtmlFile)
	for {
		tt := tokenizer.Next()
		if tt == html.ErrorToken {
			break
		}
		if tt == html.StartTagToken {
			tagName, moreAttr := tokenizer.TagName()
			if string(tagName) == "script" {
				var (
					srcAttr  string
					hrefAttr string
				)
				for moreAttr {
					var key, val []byte
					key, val, moreAttr = tokenizer.TagAttr()
					if bytes.Equal(key, []byte("src")) {
						srcAttr = string(val)
					} else if bytes.Equal(key, []byte("href")) {
						hrefAttr = string(val)
					}
				}
				if hrefAttr != "" && isHttpSepcifier(srcAttr) {
					if !isHttpSepcifier(hrefAttr) && (hrefAttr == "uno.css" || strings.HasSuffix(hrefAttr, "/uno.css") || isModulePath(hrefAttr)) {
						entries[hrefAttr] = struct{}{}
					}
				} else if !isHttpSepcifier(srcAttr) && isModulePath(srcAttr) {
					entries[srcAttr] = struct{}{}
				}
			}
		}
	}
	if len(entries) > 0 {
		rootUrl := url.URL{Path: "/"}
		w := &dummyResponseWriter{}
		q := url.Values{}
		for entry := range entries {
			pathname := rootUrl.ResolveReference(&url.URL{Path: entry}).Path
			r := &http.Request{
				Method: "GET",
				URL: &url.URL{
					Path: pathname,
				},
			}
			if strings.HasSuffix(entry, "tailwind.css") {
				s.ServeFrameworkCSS(w, r, q, "tailwind")
			} else {
				s.ServeModule(w, r, pathname, q, nil)
			}
		}