65c2aa055a
Phase 7.3 strangler reorg — rename the web widget host crate to the op- prefix. The crate's openpencil-shell-core dependency is repointed to op-editor-ui (the real source crate for the widget facade / theme / layout scene / scene vars / render-backend / gesture types). - crate name: openpencil-shell-web -> op-host-web - lib name: openpencil_shell_web -> op_host_web - every openpencil_shell_core:: path -> op_editor_ui:: - native skia.rs include_bytes! path follows the moved assets dir - smoke harness + lib doc-comment refs updated
115 lines
4.4 KiB
HTML
115 lines
4.4 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<title>Step 1b WebShell Smoke</title>
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<style>
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html,
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body {
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margin: 0;
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height: 100%;
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background: #fafafa;
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font:
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14px/1.5 -apple-system,
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BlinkMacSystemFont,
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'Segoe UI',
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sans-serif;
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}
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#status {
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padding: 16px;
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}
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#status pre {
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background: #fff;
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border: 1px solid #ccc;
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padding: 12px;
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white-space: pre-wrap;
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}
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canvas {
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display: block;
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width: 960px;
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height: 640px;
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border: 1px solid #111;
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}
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</style>
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</head>
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<body>
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<div id="status"></div>
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<canvas id="op" width="960" height="640"></canvas>
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<script type="module">
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// Phase A smoke harness for the WebShell red-rect demo.
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//
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// CURRENT STATE (post C-hard.2, 2026-05-09):
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// - Skia C++ + skia-bindings + skia-safe + shell-web build to
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// wasm32-unknown-unknown via the vendor/skia-safe-op fork
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// (build_support/platform/wasm_unknown.rs).
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// - The libc / libcxx / libm shim crate (crates/wasm-libc-shim)
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// resolves the previously-missing env.* imports. Verified via
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// `WebAssembly.Module.imports()`: 22 imports, all from
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// `./op_host_web_bg.js`; 0 env.* imports.
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// - The bundle is structurally LinkError-free; a LinkError here
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// is now a REGRESSION signal, not the expected state.
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//
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// What this harness verifies:
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// - module loads (LinkError ⇒ regression in libc shim or fork)
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// - mount() returns a live WebShell
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// - paint_phase_a draws a red rect via skia raster + put_image_data
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//
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// What this harness does NOT verify (Phase E manual smoke):
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// - the red rect is actually visible to a human in a browser tab
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// - latency is within the 16ms / 60fps budget
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// - DPI scale + canvas resize behave correctly
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//
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// Round 2 C-R2-1 fix: assign the returned WebShell to
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// `window.__opShell` so the GC keeps it alive for the page
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// lifetime; the shell may hold closures into the wasm module.
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const status = document.getElementById('status');
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const log = (cls, msg) => {
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const block = document.createElement('pre');
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block.className = cls;
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block.textContent = msg;
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status.appendChild(block);
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};
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try {
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const mod = await import('../pkg/op_host_web.js');
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await mod.default();
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window.__opShell = mod.mount('op');
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log('ok', 'WebShell mounted; canvas should show centered red rect.');
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} catch (e) {
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const isLinkError =
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e instanceof WebAssembly.LinkError ||
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(e && e.constructor && e.constructor.name === 'LinkError') ||
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(e && e.message && e.message.startsWith('WebAssembly.instantiate()'));
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const header = isLinkError
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? 'WebShell wasm bundle failed to link — REGRESSION (post C-hard.2 the bundle is supposed to be LinkError-free).'
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: 'WebShell loader could not be imported.';
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log(
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'error',
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[
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header,
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'',
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'Expected file: ../pkg/op_host_web.js',
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'',
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'How to rebuild the bundle (when the file is missing or stale):',
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' 1. brew install emscripten # 5.0.7 + EMSDK shim',
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' 2. mkdir -p ~/.emsdk/upstream && \\',
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' ln -sfn /opt/homebrew/opt/emscripten/libexec ~/.emsdk/upstream/emscripten',
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' 3. EMSDK="$HOME/.emsdk" cargo build -p op-host-web \\',
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' --target wasm32-unknown-unknown --features skia --release',
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' 4. (one-time) ln -sf libfoo.wasm.a libfoo.a in target/.../skia-bindings-*/out/skia/',
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' 5. wasm-bindgen --target web \\',
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' --out-dir crates/op-host-web/pkg \\',
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' target/wasm32-unknown-unknown/release/op_host_web.wasm',
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'',
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'A LinkError after a clean rebuild means a new env.* import',
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'snuck back in (skia upgrade, new shim gap, etc). Inspect via',
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' wasm-objdump --details --section=Import ../pkg/op_host_web_bg.wasm',
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'and add the missing symbol to crates/wasm-libc-shim/src/imp.rs.',
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'',
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'Underlying error: ' + (e && e.message ? e.message : String(e)),
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].join('\n'),
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);
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}
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</script>
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</body>
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</html>
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