test ferst

web/theme_manager.py

@@ -0,0 +1,69 @@
+import flet as ft
+import designer as d
+
+_ui_text = ft.TextTheme(
+    body_medium=ft.TextStyle(font_family=d.FONT_UI),
+    body_large=ft.TextStyle(font_family=d.FONT_UI),
+    body_small=ft.TextStyle(font_family=d.FONT_UI),
+    label_large=ft.TextStyle(font_family=d.FONT_UI),
+    label_medium=ft.TextStyle(font_family=d.FONT_UI),
+    label_small=ft.TextStyle(font_family=d.FONT_UI),
+    title_large=ft.TextStyle(font_family=d.FONT_UI, weight=ft.FontWeight.W_600),
+    title_medium=ft.TextStyle(font_family=d.FONT_UI, weight=ft.FontWeight.W_500),
+    title_small=ft.TextStyle(font_family=d.FONT_UI),
+)
+
+THEMES = {
+    "light": ft.Theme(
+        color_scheme_seed=d.PRIMARY,
+        color_scheme=ft.ColorScheme(
+            primary=d.PRIMARY,
+            secondary=d.ACCENT,
+            background=d.BACKGROUND,
+            surface=d.SURFACE,
+        ),
+        text_theme=_ui_text,
+    ),
+    "dark": ft.Theme(
+        color_scheme_seed=d.PRIMARY,
+        color_scheme=ft.ColorScheme(
+            primary=d.PRIMARY_LIGHT,
+            secondary=d.ACCENT,
+            background="#121212",
+            surface="#1E1E1E",
+            on_surface=ft.colors.WHITE,
+        ),
+        text_theme=_ui_text,
+    ),
+}
+
+
+def apply(page: ft.Page, theme_id: str = "light"):
+    theme = THEMES.get(theme_id, THEMES["light"])
+    if theme_id == "dark":
+        page.theme_mode = ft.ThemeMode.DARK
+        page.dark_theme = theme
+    else:
+        page.theme_mode = ft.ThemeMode.LIGHT
+        page.theme = theme
+
+
+def apply_article_font(page: ft.Page, font_family: str):
+    """Temporarily override body text font for article reading view."""
+    article_text = ft.TextTheme(
+        body_medium=ft.TextStyle(font_family=font_family, size=16, height=1.7),
+        body_large=ft.TextStyle(font_family=font_family, size=18, height=1.7),
+        body_small=ft.TextStyle(font_family=font_family),
+    )
+    if page.theme:
+        page.theme.text_theme = article_text
+    else:
+        page.theme = ft.Theme(text_theme=article_text)
+    page.update()
+
+
+def reset_font(page: ft.Page):
+    """Restore default UI font after leaving article view."""
+    if page.theme:
+        page.theme.text_theme = _ui_text
+        page.update()