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feat: add server-side theme cookie with dropdown selector (no JS)
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- Add theme POST handler that sets HttpOnly cookie
- Update preferences page to use <select> dropdown instead of JS buttons
- Theme cookie set on POST /preferences with theme parameter
- Theme read from cookie on all page renders
- No JavaScript required for theme selection

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Claude 2026-03-23 18:47:06 +00:00
parent 056d2d1175
commit fe0c7e8dc8
4 changed files with 47 additions and 13 deletions
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2
internal/views/templates/base.html
View file

@ -1,6 +1,6 @@
{{define "base"}}
<!DOCTYPE html>
<html lang="en">
<html lang="en" data-theme="{{.Theme}}">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">

7
internal/views/templates/preferences.html
View file

@ -8,8 +8,11 @@
<section class="pref-section">
<h2 class="pref-section-title">Appearance</h2>
<div class="pref-row">
<label>Theme</label>
<span class="theme-info">Follows system preference</span>
<label for="theme-select">Theme</label>
<select name="theme" id="theme-select" onchange="this.form.submit()">
<option value="light" {{if eq .Theme "light"}}selected{{end}}>Light</option>
<option value="dark" {{if eq .Theme "dark"}}selected{{end}}>Dark</option>
</select>
</div>
</section>

10
internal/views/views.go
View file

@ -55,6 +55,8 @@ type PageData struct {
PageNumbers []PageNumber
ShowHeader bool
IsImageSearch bool
// Theme is the user's selected theme (light/dark) from cookie
Theme string
// New fields for three-column layout
Categories []string
CategoryIcons map[string]string
@ -280,9 +282,9 @@ func FromResponse(resp contracts.SearchResponse, query string, pageno int, activ
}
// RenderIndex renders the homepage (search box only).
func RenderIndex(w http.ResponseWriter, sourceURL string) error {
func RenderIndex(w http.ResponseWriter, sourceURL, theme string) error {
w.Header().Set("Content-Type", "text/html; charset=utf-8")
return tmplIndex.ExecuteTemplate(w, "base", PageData{ShowHeader: true, SourceURL: sourceURL})
return tmplIndex.ExecuteTemplate(w, "base", PageData{ShowHeader: true, SourceURL: sourceURL, Theme: theme})
}
// RenderSearch renders the full search results page (with base layout).
@ -326,8 +328,8 @@ func RenderSearchAuto(w http.ResponseWriter, r *http.Request, data PageData) err
}
// RenderPreferences renders the full preferences page.
func RenderPreferences(w http.ResponseWriter, sourceURL string) error {
func RenderPreferences(w http.ResponseWriter, sourceURL, theme string) error {
w.Header().Set("Content-Type", "text/html; charset=utf-8")
return tmplPreferences.ExecuteTemplate(w, "base", PageData{ShowHeader: true, SourceURL: sourceURL})
return tmplPreferences.ExecuteTemplate(w, "base", PageData{ShowHeader: true, SourceURL: sourceURL, Theme: theme})
}