Improve themes handling

- Store user theme in session
- Logged out users will keep their theme
- Add theme background color to web manifest and meta tag

ui/login_check.go

@@ -47,13 +47,14 @@ func (c *Controller) CheckLogin(w http.ResponseWriter, r *http.Request) {
 	logger.Info("[Controller:CheckLogin] username=%s just logged in", authForm.Username)
 	c.store.SetLastLogin(userID)
 
-	userLanguage, err := c.store.UserLanguage(userID)
+	user, err := c.store.UserByID(userID)
 	if err != nil {
 		html.ServerError(w, err)
 		return
 	}
 
-	sess.SetLanguage(userLanguage)
+	sess.SetLanguage(user.Language)
+	sess.SetTheme(user.Theme)
 
 	http.SetCookie(w, cookie.New(
 		cookie.CookieUserSessionID,

ui/logout.go

@@ -28,6 +28,7 @@ func (c *Controller) Logout(w http.ResponseWriter, r *http.Request) {
 	}
 
 	sess.SetLanguage(user.Language)
+	sess.SetTheme(user.Theme)
 
 	if err := c.store.RemoveUserSessionByToken(user.ID, ctx.UserSessionToken()); err != nil {
 		logger.Error("[Controller:Logout] %v", err)

ui/oauth2_callback.go

@@ -114,6 +114,7 @@ func (c *Controller) OAuth2Callback(w http.ResponseWriter, r *http.Request) {
 	logger.Info("[Controller:OAuth2Callback] username=%s just logged in", user.Username)
 	c.store.SetLastLogin(user.ID)
 	sess.SetLanguage(user.Language)
+	sess.SetTheme(user.Theme)
 
 	http.SetCookie(w, cookie.New(
 		cookie.CookieUserSessionID,

ui/session/session.go

@@ -51,11 +51,16 @@ func (s *Session) FlashErrorMessage() string {
 	return message
 }
 
-// SetLanguage updates language field in session.
+// SetLanguage updates the language field in session.
 func (s *Session) SetLanguage(language string) {
 	s.store.UpdateSessionField(s.ctx.SessionID(), "language", language)
 }
 
+// SetTheme updates the theme field in session.
+func (s *Session) SetTheme(theme string) {
+	s.store.UpdateSessionField(s.ctx.SessionID(), "theme", theme)
+}
+
 // SetPocketRequestToken updates Pocket Request Token.
 func (s *Session) SetPocketRequestToken(requestToken string) {
 	s.store.UpdateSessionField(s.ctx.SessionID(), "pocket_request_token", requestToken)

ui/settings_update.go

@@ -68,6 +68,7 @@ func (c *Controller) UpdateSettings(w http.ResponseWriter, r *http.Request) {
 	}
 
 	sess.SetLanguage(user.Language)
+	sess.SetTheme(user.Theme)
 	sess.NewFlashMessage(c.translator.GetLanguage(ctx.UserLanguage()).Get("Preferences saved!"))
 	response.Redirect(w, r, route.Path(c.router, "settings"))
 }

ui/static_manifest.go

@@ -7,8 +7,10 @@ package ui
 import (
 	"net/http"
 
+	"github.com/miniflux/miniflux/http/context"
 	"github.com/miniflux/miniflux/http/response/json"
 	"github.com/miniflux/miniflux/http/route"
+	"github.com/miniflux/miniflux/model"
 )
 
 // WebManifest renders web manifest file.
@@ -20,20 +22,27 @@ func (c *Controller) WebManifest(w http.ResponseWriter, r *http.Request) {
 	}
 
 	type webManifest struct {
-		Name        string            `json:"name"`
-		Description string            `json:"description"`
-		ShortName   string            `json:"short_name"`
-		StartURL    string            `json:"start_url"`
-		Icons       []webManifestIcon `json:"icons"`
-		Display     string            `json:"display"`
+		Name            string            `json:"name"`
+		Description     string            `json:"description"`
+		ShortName       string            `json:"short_name"`
+		StartURL        string            `json:"start_url"`
+		Icons           []webManifestIcon `json:"icons"`
+		Display         string            `json:"display"`
+		ThemeColor      string            `json:"theme_color"`
+		BackgroundColor string            `json:"background_color"`
 	}
 
+	ctx := context.New(r)
+	themeColor := model.ThemeColor(ctx.UserTheme())
+
 	manifest := &webManifest{
-		Name:        "Miniflux",
-		ShortName:   "Miniflux",
-		Description: "Minimalist Feed Reader",
-		Display:     "minimal-ui",
-		StartURL:    route.Path(c.router, "unread"),
+		Name:            "Miniflux",
+		ShortName:       "Miniflux",
+		Description:     "Minimalist Feed Reader",
+		Display:         "minimal-ui",
+		StartURL:        route.Path(c.router, "unread"),
+		ThemeColor:      themeColor,
+		BackgroundColor: themeColor,
 		Icons: []webManifestIcon{
 			webManifestIcon{Source: route.Path(c.router, "appIcon", "filename", "icon-120.png"), Sizes: "120x120", Type: "image/png"},
 			webManifestIcon{Source: route.Path(c.router, "appIcon", "filename", "icon-192.png"), Sizes: "192x192", Type: "image/png"},

ui/view/view.go

@@ -35,5 +35,6 @@ func New(tpl *template.Engine, ctx *context.Context, sess *session.Session) *Vie
 	b.params["csrf"] = ctx.CSRF()
 	b.params["flashMessage"] = sess.FlashMessage()
 	b.params["flashErrorMessage"] = sess.FlashErrorMessage()
+	b.params["theme"] = ctx.UserTheme()
 	return b
 }