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/*
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catcrafts.net
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Copyright (C) 2026 Catcrafts
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The source code of this website is made available for viewing purposes only.
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No permission is granted to copy, modify, distribute, or create derivative works.
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*/
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export module Catcrafts:Views_impl;
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import :Views;
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import Crafter.Graphics;
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2026-08-05 04:18:37 +02:00
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import Catcrafts.Shared;
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import std;
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using namespace Crafter;
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namespace Catcrafts {
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namespace {
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// Owning handle for the page chrome, ONLY when this module created it.
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// std::optional defers construction until InitializePage() runs — a
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// CreateInBody at static-init time would fire before main().
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//
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// Left empty when the server already rendered the chrome: the handle is
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// owning, and destroying it would remove the server's markup from the
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// document.
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std::optional<Dom::HtmlElement> root;
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// True when the document arrived server-rendered.
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bool adoptedSsr = false;
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Views::SiteContent content;
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bool contentLoaded = false;
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Window* activeWindow = nullptr;
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}
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void SetActiveWindow(Window* window) { activeWindow = window; }
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void SetDocumentTitle(std::string_view title) {
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// Only meaningful on the client-rendered path. On an SSR'd page the
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// server already set a correct <title>, and overwriting it with the
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// same string is pointless work.
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if (activeWindow && !adoptedSsr) activeWindow->SetTitle(title);
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}
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bool AdoptedSsr() { return adoptedSsr; }
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std::string ReadBundleFile(std::string_view name) {
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// cfg.files flattens to the bundle root (Crafter.Build copies by
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// filename, not by path), so "content/posts.json" is readable as
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// "posts.json" here. runtime.js has already fetched every files.json
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// entry into the VFS before _start, so this cannot block on the
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// network and cannot fail for a file that is in the manifest.
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std::ifstream in(std::string(name), std::ios::binary);
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if (!in) return {};
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std::ostringstream buf;
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buf << in.rdbuf();
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return buf.str();
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}
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const Views::SiteContent& SiteData() {
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if (!contentLoaded) {
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contentLoaded = true;
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// Authored content is compiled into the module; only the
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// pipeline-generated files ride the VFS.
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content.projects = Content::Projects();
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content.products = Content::Products();
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content.legal = Content::LegalPages();
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content.demos = Content::Demos();
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content.posts = LoadPosts(ReadBundleFile("posts.json"));
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content.rates = LoadRates(ReadBundleFile("rates.json"));
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}
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return content;
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}
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void InitializePage() {
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// Two ways a page can arrive, and they need opposite handling.
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//
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// 1. Server-rendered (the normal case): #catcrafts-root already exists,
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// with the chrome and the route's content in it. Building a second
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// root here would duplicate the header and footer on screen, and
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// re-rendering <main> would replace correct markup with identical
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// markup — a wasted round of DOM work and a visible flash for
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// nothing. So: adopt, and touch nothing.
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//
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// 2. The static fallback shell: Caddy serves the wasm bundle's
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// index.html when the backend is down (see deploy/Caddyfile.example),
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// and that document has an empty <body>. Here the app IS the whole
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// site and has to build the chrome and render the route itself.
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Dom::HtmlElementPtr existing("catcrafts-root");
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if (existing.ptr != 0) {
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adoptedSsr = true;
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return;
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}
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root.emplace(Dom::HtmlElement::CreateInBody("div", "catcrafts-root"));
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root->SetInnerHTML(std::format(
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R"(<header id="cc-header">{}</header>)"
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R"(<main id="main"></main>)"
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R"(<footer id="cc-footer">{}</footer>)",
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Views::RenderNav(RouteKind::Home).Str(),
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Views::RenderFooter().Str()));
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}
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}
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