internal/frontend: change page title depending on users location

Differentiate between home, search and package pages
in the sites title so users can tell them apart
easily when having multiple tabs open.

Fixes golang/go#41105

Change-Id: I9387d938b9bcbd2c610d2c38cb6cc13e661d8e04
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/275535
Reviewed-by: Julie Qiu <julie@golang.org>
Trust: Julie Qiu <julie@golang.org>
Trust: Jonathan Amsterdam <jba@google.com>
Run-TryBot: Julie Qiu <julie@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>

internal/frontend/details.go

@@ -28,7 +28,7 @@ func (s *Server) serveDetails(w http.ResponseWriter, r *http.Request, ds interna
 		return &serverError{status: http.StatusMethodNotAllowed}
 	}
 	if r.URL.Path == "/" {
-		s.staticPageHandler("index.tmpl", "")(w, r)
+		s.staticPageHandler("index.tmpl", "Home")(w, r)
 		return nil
 	}
 

internal/frontend/search.go

@@ -174,7 +174,7 @@ func (s *Server) serveSearch(w http.ResponseWriter, r *http.Request, ds internal
 	if err != nil {
 		return fmt.Errorf("fetchSearchPage(ctx, db, %q): %v", query, err)
 	}
-	page.basePage = s.newBasePage(r, query)
+	page.basePage = s.newBasePage(r, fmt.Sprintf("%s - Search Results", query))
 	s.servePage(ctx, w, "search.tmpl", page)
 	return nil
 }

internal/frontend/server.go

@@ -132,7 +132,7 @@ func (s *Server) Install(handle func(string, http.Handler), redisClient *redis.C
 	handle("/fetch/", fetchHandler)
 	handle("/play/", http.HandlerFunc(s.handlePlay))
 	handle("/search", searchHandler)
-	handle("/search-help", s.staticPageHandler("search_help.tmpl", "Search Help - go.dev"))
+	handle("/search-help", s.staticPageHandler("search_help.tmpl", "Search Help"))
 	handle("/license-policy", s.licensePolicyHandler())
 	handle("/about", http.RedirectHandler("https://go.dev/about", http.StatusFound))
 	handle("/badge/", http.HandlerFunc(s.badgeHandler))