Modifica la forma de identificar temas y módulos

Cada módulo y cada tema requerirá a partir de ahora un identificador que
debería ser único y con alguna sintaxis particular aún por definir (por
ejemplo, admitiendo sólo minúsculas y sin espacios).

src/core/module/api.rs

@@ -2,6 +2,8 @@ use crate::core::server;
 
 /// Los módulos deben implementar este *trait*.
 pub trait Module: Send + Sync {
+    fn id(&self) -> &'static str;
+
     fn name(&self) -> String;
 
     fn description(&self) -> String {

src/core/module/mod.rs

@@ -7,9 +7,9 @@ pub fn register_module(m: &'static (dyn Module + 'static)) {
     MODULES.write().unwrap().push(m);
 }
 
-pub fn find_module(name: &str) -> Option<&'static (dyn Module + 'static)> {
+pub fn find_module(id: &str) -> Option<&'static (dyn Module + 'static)> {
     let modules = MODULES.write().unwrap();
-    match modules.iter().find(|t| t.name() == name) {
+    match modules.iter().find(|t| t.id() == id) {
         Some(module) => Some(*module),
         _ => None,
     }

src/core/response/page/assets.rs

@@ -1,5 +1,5 @@
 use crate::core::all::DEFAULT_THEME;
-use crate::core::theme::{Markup, PreEscaped, Theme, html};
+use crate::core::theme::{Markup, PreEscaped, Theme, find_theme, html};
 
 // -----------------------------------------------------------------------------
 // Favicon.
@@ -195,8 +195,8 @@ impl Assets {
         }
     }
 
-    pub fn using_theme(&mut self, theme: &'static dyn Theme) -> &mut Self {
-        self.theme = theme;
+    pub fn using_theme(&mut self, theme_id: &str) -> &mut Self {
+        self.theme = find_theme(theme_id).unwrap_or(*DEFAULT_THEME);
         self
     }
 

src/core/response/page/page.rs

@@ -1,7 +1,7 @@
 use crate::config::SETTINGS;
 use crate::core::server;
 use crate::core::all::COMPONENTS;
-use crate::core::theme::{DOCTYPE, Markup, Theme, html};
+use crate::core::theme::{DOCTYPE, Markup, html};
 use crate::core::response::page::{PageAssets, PageComponent, PageContainer};
 
 use std::borrow::Cow;
@@ -159,8 +159,8 @@ impl<'a> Page<'a> {
 
     // Page EXTRAS.
 
-    pub fn using_theme(&mut self, theme: &'static dyn Theme) -> &mut Self {
-        self.assets.using_theme(theme);
+    pub fn using_theme(&mut self, theme_id: &str) -> &mut Self {
+        self.assets.using_theme(theme_id);
         self
     }
 }

src/core/theme/api.rs

@@ -5,6 +5,8 @@ use crate::base::component::Chunck;
 
 /// Los temas deben implementar este "trait".
 pub trait Theme: Send + Sync {
+    fn id(&self) -> &'static str;
+
     fn name(&self) -> String;
 
     fn description(&self) -> String {

src/core/theme/mod.rs

@@ -9,9 +9,9 @@ pub fn register_theme(t: &'static (dyn Theme + 'static)) {
     THEMES.write().unwrap().push(t);
 }
 
-pub fn find_theme(name: &str) -> Option<&'static (dyn Theme + 'static)> {
+pub fn find_theme(id: &str) -> Option<&'static (dyn Theme + 'static)> {
     let themes = THEMES.write().unwrap();
-    match themes.iter().find(|t| t.name() == name) {
+    match themes.iter().find(|t| t.id() == id) {
         Some(theme) => Some(*theme),
         _ => None,
     }