From d59397d4146ffa23adbbe6dc99c64ebb22a93b2d Mon Sep 17 00:00:00 2001 From: Gabriel Schneider Date: Sat, 1 Aug 2026 22:44:19 -0300 Subject: add vanilla DOM web backend --- build.zig | 308 +++---- build/snap.zig | 12 +- docs/design.pdf | 1556 +++++++++++++++++---------------- docs/design.typ | 34 +- docs/ideas.typ | 2 - docs/web.md | 49 ++ src/dump.zig | 6 +- src/web.zig | 481 ++++++++++ src/web/app.mjs | 436 +++++++++ src/web/index.html | 17 + src/web/libc.c | 152 ++++ src/web/libc/include/assert.h | 14 + src/web/libc/include/ctype.h | 7 + src/web/libc/include/endian.h | 21 + src/web/libc/include/inttypes.h | 8 + src/web/libc/include/limits.h | 9 + src/web/libc/include/stdio.h | 19 + src/web/libc/include/stdlib.h | 16 + src/web/libc/include/string.h | 17 + src/web/libc/include/wchar.h | 9 + src/web/libc/include/wctype.h | 18 + src/web/pardes.css | 91 ++ src/web/zstbi.zig | 30 + test/web-snapshots/README.md | 7 +- test/web-snapshots/source-list.golden | 306 +++---- test/web_harness.mjs | 136 +++ test/web_snapshot.mjs | 41 +- 27 files changed, 2634 insertions(+), 1168 deletions(-) create mode 100644 docs/web.md create mode 100644 src/web.zig create mode 100644 src/web/app.mjs create mode 100644 src/web/index.html create mode 100644 src/web/libc.c create mode 100644 src/web/libc/include/assert.h create mode 100644 src/web/libc/include/ctype.h create mode 100644 src/web/libc/include/endian.h create mode 100644 src/web/libc/include/inttypes.h create mode 100644 src/web/libc/include/limits.h create mode 100644 src/web/libc/include/stdio.h create mode 100644 src/web/libc/include/stdlib.h create mode 100644 src/web/libc/include/string.h create mode 100644 src/web/libc/include/wchar.h create mode 100644 src/web/libc/include/wctype.h create mode 100644 src/web/pardes.css create mode 100644 src/web/zstbi.zig create mode 100644 test/web_harness.mjs diff --git a/build.zig b/build.zig index 781cc848..b089a9c9 100644 --- a/build.zig +++ b/build.zig @@ -9,7 +9,6 @@ pub const Platform = enum { tty, gui, web }; /// which fails on a fetched package that has no .git) and to `SPC l i`. const zls_version = "0.16.1-dev+3e0d0820"; pub const TreeSitterGrammars = enum { disabled, zig, minimal, full }; -const GhosttyArtifact = enum { ghostty, lib }; pub fn build(b: *std.Build) void { // Default target is the Steam Deck (deckcap's trick): x86_64 linux-gnu @@ -27,10 +26,10 @@ pub fn build(b: *std.Build) void { const platform = b.option(Platform, "platform", "which shell to build (tty, gui, web)") orelse .tty; const static = b.option(bool, "static", "statically link") orelse false; const dump_path = b.option([]const u8, "dump", "dump .zon embedded into the web shell (-Dplatform=web)"); - const emcc_path = b.option([]const u8, "emcc", "emcc for the web shell's final link") orelse "/usr/lib/emscripten/emcc"; - const is_emscripten = target.result.os.tag == .emscripten; + const is_web = platform == .web; + const is_web_target = target.result.cpu.arch == .wasm32 and target.result.os.tag == .freestanding; // wasm: size is the budget - const optimize = if (is_emscripten) .ReleaseSmall else requested_optimize; + const optimize = if (is_web) .ReleaseSmall else requested_optimize; // The vendored C is never what we are debugging, and at -O0 it dominates // the app: 90% of a Debug startup is tree-sitter's query analyser // (perf: ts_query__perform_analysis + ts_lookahead_iterator__next), and @@ -38,12 +37,16 @@ pub fn build(b: *std.Build) void { // mode takes a Debug boot from ~710ms to ~210ms — the same treatment // ghostty's simdutf/highway already get here. Zig code keeps its mode. const c_optimize: std.builtin.OptimizeMode = if (optimize == .Debug) .ReleaseFast else optimize; - const default_grammars: TreeSitterGrammars = if (is_emscripten) .zig else .full; + // The browser keeps its useful default grammar without acquiring a host + // libc contract: Tree-sitter and the generated Zig parser are linked into + // the freestanding module against src/web/libc's tiny in-module shim. + const default_grammars: TreeSitterGrammars = if (is_web) .zig else .full; const tree_sitter_grammars = b.option(TreeSitterGrammars, "tree-sitter", "tree-sitter grammar set: disabled, zig, minimal (c/c++/zig), full") orelse default_grammars; const tracy = b.option([]const u8, "tracy", "enable Tracy profiling; supply the path to a Tracy source checkout"); - // the browser shell: zig object + emcc link + html, installed to zig-out/web - const web_step = b.step("web", "build the browser shell into zig-out/web (-Dplatform=web -Dtarget=wasm32-emscripten -Ddump=)"); + // The browser shell is a freestanding wasm core plus ordinary web files. + // JavaScript owns the loop and IO; HTML/CSS own rendering. + const web_step = b.step("web", "build the DOM browser shell into zig-out/web (-Dplatform=web -Dtarget=wasm32-freestanding -Ddump=)"); // Web LOOK has a tiny read-only source filesystem. Generate one Zig module // on the host from every tracked .zig path + its current working-tree @@ -68,30 +71,9 @@ pub fn build(b: *std.Build) void { snap_build.addWeb(b); - const emscripten_sysroot = if (is_emscripten) detectEmscriptenSysroot(b) else null; - if (platform == .web and !is_emscripten) return failBuild(b, web_step, "-Dplatform=web requires -Dtarget=wasm32-emscripten"); - if (platform != .web and is_emscripten) return failBuild(b, web_step, "-Dtarget=wasm32-emscripten requires -Dplatform=web"); + if (is_web and !is_web_target) return failBuild(b, web_step, "-Dplatform=web requires -Dtarget=wasm32-freestanding"); + if (!is_web and (is_web_target or target.result.os.tag == .emscripten)) return failBuild(b, web_step, "wasm browser targets require -Dplatform=web"); if (platform == .web and dump_path == null) return failBuild(b, web_step, "-Dplatform=web requires -Ddump= (the browser has no ptys; state replays from an embedded dump)"); - if (platform == .web and emscripten_sysroot == null) return failBuild(b, web_step, "no emscripten sysroot found; pass --sysroot /sysroot or set EM_CACHE/EMSDK"); - - // emscripten "libc": point zig at the sysroot headers/crt via a libc.txt - // (the prototype's WriteFiles trick) — applied to EVERY compile step. - const libc_file: ?std.Build.LazyPath = if (emscripten_sysroot) |sysroot| blk: { - const files = b.addWriteFiles(); - break :blk files.add("emscripten-libc.txt", b.fmt( - \\include_dir={s}/include - \\sys_include_dir={s}/include - \\crt_dir={s}/lib/wasm32-emscripten - \\msvc_lib_dir= - \\kernel32_lib_dir= - \\gcc_dir= - \\ - , .{ sysroot, sysroot, sysroot })); - } else null; - const emscripten_include: ?std.Build.LazyPath = if (emscripten_sysroot) |sysroot| - .{ .cwd_relative = b.pathJoin(&.{ sysroot, "include" }) } - else - null; // build-time IO: slurps the grammars' highlights.scm queries, and reads // vendor/themes to find the theme sources @@ -102,8 +84,8 @@ pub fn build(b: *std.Build) void { const root_mod = b.createModule(.{ .target = target, .optimize = optimize, - .root_source_file = b.path("src/main.zig"), - .link_libc = true, + .root_source_file = b.path(if (is_web) "src/web.zig" else "src/main.zig"), + .link_libc = !is_web, }); // helix differential harness (test/hxdiff.zig): a second compilation of // the sans-IO core, driven headlessly. Mirrors root_mod's wiring for @@ -150,19 +132,16 @@ pub fn build(b: *std.Build) void { root_mod.addImport("generated_themes", themes_mod); hx_core_mod.addImport("generated_themes", themes_mod); - // static archives the emcc link needs beyond the zig object (grammars, SDL) - var wasm_libs: std.ArrayList(std.Build.LazyPath) = .empty; - // forkpty: in libc proper on glibc>=2.34 and darwin; the BSDs keep it in libutil if (target.result.os.tag == .freebsd or target.result.os.tag == .netbsd or target.result.os.tag == .openbsd) root_mod.linkSystemLibrary("util", .{}); // The language backend (src/lsp/lsp_zls.zig) links ZLS as a MODULE — no zls // binary, no JSON-RPC, no protocol. Everything except the browser gets it; - // emscripten does not, because the web shell has no threads and no-ops the + // the web shell does not, because it has no threads and no-ops the // lsp effect anyway, so paying to compile an analyser it can never call // would be pure wasm. - const zls_backend = !is_emscripten; + const zls_backend = !is_web; const opts = b.addOptions(); opts.addOption(Platform, "platform", platform); @@ -236,16 +215,26 @@ pub fn build(b: *std.Build) void { // ts_queries options module (codegen consumed by comptime in syntax.zig). if (tree_sitter_grammars != .disabled) { const tree_sitter_mod = b.dependency("tree_sitter", .{ .target = target, .optimize = c_optimize }).module("tree_sitter"); - // the C runtime rides the module as a static lib; give it the wasm - // libc and hand its archive to the emcc link - if (is_emscripten) { + if (is_web) { + // zig-tree-sitter carries its C runtime as a linked static library. + // Retarget that library away from libc and put the compatibility + // headers before any unavailable freestanding system headers. + const web_libc_include: std.Build.LazyPath = .{ + .cwd_relative = b.path("src/web/libc/include").getPath(b), + }; for (tree_sitter_mod.link_objects.items) |link_object| switch (link_object) { .other_step => |lib| { - lib.setLibCFile(libc_file.?); - wasm_libs.append(b.allocator, lib.getEmittedBin()) catch @panic("OOM"); + lib.root_module.link_libc = false; + lib.root_module.addIncludePath(web_libc_include); + lib.root_module.addCMacro("NDEBUG", "1"); }, else => {}, }; + root_mod.addIncludePath(b.path("src/web/libc/include")); + root_mod.addCSourceFile(.{ + .file = b.path("src/web/libc.c"), + .flags = &.{ "-std=c11", "-DNDEBUG=1" }, + }); } root_mod.addImport("tree-sitter", tree_sitter_mod); hx_core_mod.addImport("tree-sitter", tree_sitter_mod); @@ -299,10 +288,9 @@ pub fn build(b: *std.Build) void { const lib = b.addLibrary(.{ .name = "tree-sitter-" ++ g.name, - .root_module = b.createModule(.{ .target = target, .optimize = c_optimize, .link_libc = true }), + .root_module = b.createModule(.{ .target = target, .optimize = c_optimize, .link_libc = !is_web }), .linkage = .static, }); - if (libc_file) |f| lib.setLibCFile(f); // grammars declare external_scanner_create() with EMPTY PARENS // (a K&R non-prototype, not (void)): under clang's // -fsanitize=function the callee's type hash differs from the @@ -315,19 +303,26 @@ pub fn build(b: *std.Build) void { lib.root_module.addCSourceFile(.{ .file = dep.path(g.src ++ "/parser.c"), .flags = &ts_cflags }); if (g.scanner) lib.root_module.addCSourceFile(.{ .file = dep.path(g.src ++ "/scanner.c"), .flags = &ts_cflags }); lib.root_module.addIncludePath(dep.path(g.src)); + if (is_web) lib.root_module.addIncludePath(b.path("src/web/libc/include")); root_mod.linkLibrary(lib); hx_core_mod.linkLibrary(lib); - if (is_emscripten) wasm_libs.append(b.allocator, lib.getEmittedBin()) catch @panic("OOM"); } } root_mod.addOptions("ts_queries", ts_queries); hx_core_mod.addOptions("ts_queries", ts_queries); } - // zstbi (C stb_image): image pane decode. zigimg crashes the 0.16 compiler. - const zstbi_dep = b.dependency("zstbi", .{ .target = target, .optimize = c_optimize }); - root_mod.addImport("zstbi", zstbi_dep.module("root")); - hx_core_mod.addImport("zstbi", zstbi_dep.module("root")); + // zstbi (C stb_image): image pane decode. The freestanding core has no C + // allocator ABI, so its module is a compatible no-decode shim; browser IO + // can grow native image decoding independently of the core. + const zstbi_dep = if (!is_web) b.dependency("zstbi", .{ .target = target, .optimize = c_optimize }) else null; + const zstbi_mod = if (zstbi_dep) |dep| dep.module("root") else b.createModule(.{ + .target = target, + .optimize = optimize, + .root_source_file = b.path("src/web/zstbi.zig"), + }); + root_mod.addImport("zstbi", zstbi_mod); + hx_core_mod.addImport("zstbi", zstbi_mod); // mvzr: the regex engine behind `s` / `S` (helix select/split on a regex). // A bytecode VM that compiles a RUNTIME pattern into a fixed-size struct @@ -353,11 +348,11 @@ pub fn build(b: *std.Build) void { .tables_path = uucode_tables, }).module("uucode"); - const vaxis_mod = b.dependency("vaxis", .{ + const vaxis_mod: ?*std.Build.Module = if (!is_web) b.dependency("vaxis", .{ .target = target, .optimize = optimize, .external_uucode = true, - }).module("vaxis"); + }).module("vaxis") else null; var ghostty_vt_for_snap: ?*std.Build.Module = null; // ghostty's simd libs (simdutf/highway, C++) locate the Apple SDK via @@ -379,7 +374,7 @@ pub fn build(b: *std.Build) void { // without it); gate that block on `b.graph.host.result.os.tag == .linux`. // Ghostty's pinned translate-c tarball also 404s now (codeberg dropped // the archive endpoint) — seed zig-pkg/ from a machine that has it. - const ghostty_simd = !target.result.os.tag.isDarwin() or b.graph.host.result.os.tag.isDarwin(); + const ghostty_simd = !is_web and (!target.result.os.tag.isDarwin() or b.graph.host.result.os.tag.isDarwin()); // app-runtime none + emit-xcframework off: only the ghostty-vt module is // consumed, and the defaults otherwise drag ghostty's app graph into the // build — gtk4 header translation via host pkg-config for linux targets, @@ -394,39 +389,19 @@ pub fn build(b: *std.Build) void { // own safety checks come from OUR optimize mode and are unaffected, since // ghostty-vt is a module compiled into this binary. See reflow.snap. const ghostty_optimize: std.builtin.OptimizeMode = if (optimize == .Debug) .ReleaseSafe else optimize; - const ghostty_dep = if (is_emscripten) - b.lazyDependency("ghostty", .{ .simd = false }) - else - b.lazyDependency("ghostty", .{ .target = target, .optimize = ghostty_optimize, .simd = ghostty_simd, .@"app-runtime" = .none, .@"emit-xcframework" = false }); + const ghostty_dep = b.lazyDependency("ghostty", .{ .target = target, .optimize = ghostty_optimize, .simd = ghostty_simd, .@"app-runtime" = .none, .@"emit-xcframework" = false }); if (ghostty_dep) |dep| { const ghostty_vt = dep.module("ghostty-vt"); ghostty_vt_for_snap = ghostty_vt; ghostty_vt.addImport("uucode", uucode_mod); - // emscripten: hand ghostty-vt the terminal_options module its build() - // would otherwise provide (copied verbatim from the prototype build) - if (is_emscripten) { - const term_opts = b.addOptions(); - term_opts.addOption(GhosttyArtifact, "artifact", .lib); - term_opts.addOption(bool, "c_abi", false); - term_opts.addOption(bool, "oniguruma", false); - term_opts.addOption(bool, "simd", false); - term_opts.addOption(bool, "slow_runtime_safety", false); - term_opts.addOption(bool, "kitty_graphics", false); - term_opts.addOption(bool, "tmux_control_mode", false); - term_opts.addOption([]const u8, "version_string", "0.0.0"); - term_opts.addOption(usize, "version_major", 0); - term_opts.addOption(usize, "version_minor", 0); - term_opts.addOption(usize, "version_patch", 0); - term_opts.addOption(?[]const u8, "version_pre", null); - term_opts.addOption(?[]const u8, "version_build", null); - ghostty_vt.addOptions("terminal_options", term_opts); - } root_mod.addImport("ghostty-vt", ghostty_vt); hx_core_mod.addImport("ghostty-vt", ghostty_vt); } // override uucode on vaxis LAST so it wins over ghostty's build() wiring. - vaxis_mod.addImport("uucode", uucode_mod); - root_mod.addImport("vaxis", vaxis_mod); + if (vaxis_mod) |vaxis| { + vaxis.addImport("uucode", uucode_mod); + root_mod.addImport("vaxis", vaxis); + } root_mod.addImport("uucode", uucode_mod); hx_core_mod.addImport("uucode", uucode_mod); @@ -467,29 +442,22 @@ pub fn build(b: *std.Build) void { root_mod.addOptions("pardes_config", opts); hx_core_mod.addOptions("pardes_config", opts); - // SDL3 shell wiring (-Dplatform=gui and web). The sdl package builds SDL3 + // SDL3 shell wiring (-Dplatform=gui). The sdl package builds SDL3 // from source as a static lib + emits the SDL3/ headers; gui.zig @cImports // those, plus a small stb_truetype C shim for the glyph atlas, and embeds - // the SPIR-V compiled at build time from shaders/*.glsl — or, on web, the - // GL ES shader sources compiled at runtime by WebGL. - if (platform == .gui or platform == .web) { + // the SPIR-V compiled at build time from shaders/*.glsl. + if (platform == .gui) { // sanitize_c MUST stay off: zig cc's UBSan (on for C in Debug AND // ReleaseSafe) traps hidapi's mismatched fn-pointer calls the moment // a HID gamepad is enumerated — SDL_Init SIGILLs on the deck itself // (ud2 in SDL_hid_set_nonblocking_REAL); headless boxes never see it. // SDL3 always statically linked (like deckcap): the gui binary must // only need system libc/libm — never a shared libSDL3. - const sdl_dep = if (emscripten_include) |include| - b.lazyDependency("sdl", .{ .target = target, .optimize = optimize, .sanitize_c = .off, .preferred_linkage = .static, .system_include_path = include }) - else - b.lazyDependency("sdl", .{ .target = target, .optimize = optimize, .sanitize_c = .off, .preferred_linkage = .static }); + const sdl_dep = b.lazyDependency("sdl", .{ .target = target, .optimize = optimize, .sanitize_c = .off, .preferred_linkage = .static }); if (sdl_dep) |dep| { const sdl_lib = dep.artifact("SDL3"); - if (libc_file) |f| sdl_lib.setLibCFile(f); root_mod.linkLibrary(sdl_lib); root_mod.addIncludePath(dep.path("include")); - if (emscripten_include) |include| root_mod.addSystemIncludePath(include); - if (is_emscripten) wasm_libs.append(b.allocator, sdl_lib.getEmittedBin()) catch @panic("OOM"); } // darwin: SDL_GPU only speaks SPIRV here (shaders/*.glsl -> glslc), so // it must pick its vulkan backend via the Vulkan SDK's loader + @@ -505,71 +473,56 @@ pub fn build(b: *std.Build) void { root_mod.addAnonymousImport("AdwaitaMono-Regular.ttf", .{ .root_source_file = b.path("assets/AdwaitaMono-Regular.ttf"), }); - if (platform == .web) { - root_mod.addAnonymousImport("ui.vert.es.glsl", .{ .root_source_file = b.path("shaders/ui.vert.es.glsl") }); - root_mod.addAnonymousImport("ui.frag.es.glsl", .{ .root_source_file = b.path("shaders/ui.frag.es.glsl") }); - root_mod.addAnonymousImport("overlay.vert.es.glsl", .{ .root_source_file = b.path("shaders/overlay.vert.es.glsl") }); - root_mod.addAnonymousImport("overlay.frag.es.glsl", .{ .root_source_file = b.path("shaders/overlay.frag.es.glsl") }); - const dp = dump_path.?; - root_mod.addAnonymousImport("embedded.dump.zon", .{ - .root_source_file = if (std.fs.path.isAbsolute(dp)) .{ .cwd_relative = dp } else b.path(dp), - }); - root_mod.addAnonymousImport("embedded_sources", .{ .root_source_file = embedded_sources }); - } else { - root_mod.addAnonymousImport("ui.vert.spv", .{ - .root_source_file = compileGlsl(b, "shaders/ui.vert.glsl", "vertex", "ui.vert.spv"), - }); - root_mod.addAnonymousImport("ui.frag.spv", .{ - .root_source_file = compileGlsl(b, "shaders/ui.frag.glsl", "fragment", "ui.frag.spv"), - }); - root_mod.addAnonymousImport("overlay.vert.spv", .{ - .root_source_file = compileGlsl(b, "shaders/overlay.vert.glsl", "vertex", "overlay.vert.spv"), - }); - root_mod.addAnonymousImport("overlay.frag.spv", .{ - .root_source_file = compileGlsl(b, "shaders/overlay.frag.glsl", "fragment", "overlay.frag.spv"), - }); - root_mod.addAnonymousImport("crt.vert.spv", .{ - .root_source_file = compileGlsl(b, "shaders/crt.vert.glsl", "vertex", "crt.vert.spv"), - }); - root_mod.addAnonymousImport("crt.frag.spv", .{ - .root_source_file = compileGlsl(b, "shaders/crt.frag.glsl", "fragment", "crt.frag.spv"), - }); - } + root_mod.addAnonymousImport("ui.vert.spv", .{ + .root_source_file = compileGlsl(b, "shaders/ui.vert.glsl", "vertex", "ui.vert.spv"), + }); + root_mod.addAnonymousImport("ui.frag.spv", .{ + .root_source_file = compileGlsl(b, "shaders/ui.frag.glsl", "fragment", "ui.frag.spv"), + }); + root_mod.addAnonymousImport("overlay.vert.spv", .{ + .root_source_file = compileGlsl(b, "shaders/overlay.vert.glsl", "vertex", "overlay.vert.spv"), + }); + root_mod.addAnonymousImport("overlay.frag.spv", .{ + .root_source_file = compileGlsl(b, "shaders/overlay.frag.glsl", "fragment", "overlay.frag.spv"), + }); + root_mod.addAnonymousImport("crt.vert.spv", .{ + .root_source_file = compileGlsl(b, "shaders/crt.vert.glsl", "vertex", "crt.vert.spv"), + }); + root_mod.addAnonymousImport("crt.frag.spv", .{ + .root_source_file = compileGlsl(b, "shaders/crt.frag.glsl", "fragment", "crt.frag.spv"), + }); } - if (platform == .web) { - // zig emits an object; emcc does the final link (wasm + js glue), - // compiling the C shims itself and pulling in every static archive. - const obj = b.addObject(.{ .name = "pardes", .root_module = root_mod }); - obj.setLibCFile(libc_file.?); - - const emcc = b.addSystemCommand(&.{emcc_path}); - emcc.addFileArg(obj.getEmittedBinDirectory().path(b, "pardes_zcu.o")); - emcc.addFileArg(obj.getEmittedBin()); - emcc.addFileArg(b.path("vendor/stb/stb_truetype_impl.c")); - emcc.addFileArg(b.path("vendor/stb/font.c")); - emcc.addFileArg(zstbi_dep.path("src/zstbi.c")); - for (wasm_libs.items) |lib| emcc.addFileArg(lib); - emcc.addPrefixedDirectoryArg("-I", b.path("vendor/stb")); - emcc.addPrefixedDirectoryArg("-I", zstbi_dep.path("libs/stbi")); - emcc.addArgs(&.{ - "-std=c99", - "-fno-sanitize=undefined", - "-Oz", - "-sINITIAL_MEMORY=1073741824", // the 512 MiB web heap + code/stack - "-sEXIT_RUNTIME=0", // run() returns; the rAF loop keeps living - "-sFULL_ES3=1", - "-sMIN_WEBGL_VERSION=2", - "-sMAX_WEBGL_VERSION=2", - "-sINCOMING_MODULE_JS_API=canvas", - "-sEXPORTED_FUNCTIONS=['_main','_pardes_web_test_cols','_pardes_web_test_rows','_pardes_web_test_cursor_x','_pardes_web_test_cursor_y','_pardes_web_test_cell','_pardes_web_test_cell_fg','_pardes_web_test_cell_bg','_pardes_web_test_cell_attrs','_pardes_web_test_cell_x','_pardes_web_test_cell_y']", - "-o", + if (is_web) { + const dp = dump_path.?; + root_mod.addAnonymousImport("embedded.dump.zon", .{ + .root_source_file = if (std.fs.path.isAbsolute(dp)) .{ .cwd_relative = dp } else b.path(dp), }); - const js = emcc.addOutputFileArg("pardes.js"); - web_step.dependOn(&b.addInstallFileWithDir(js, .{ .custom = "web" }, "pardes.js").step); - web_step.dependOn(&b.addInstallFileWithDir(js.dirname().path(b, "pardes.wasm"), .{ .custom = "web" }, "pardes.wasm").step); - const html = b.addWriteFiles().add("index.html", html_shell); - web_step.dependOn(&b.addInstallFileWithDir(html, .{ .custom = "web" }, "index.html").step); + root_mod.addAnonymousImport("embedded_sources", .{ .root_source_file = embedded_sources }); + } + + if (platform == .web) { + const wasm = b.addExecutable(.{ .name = "pardes", .root_module = root_mod }); + wasm.entry = .disabled; + wasm.rdynamic = true; + wasm.export_memory = true; + // The full grammar tier carries ~48 MiB of generated parse tables. + // Keep the compact default at 32 MiB, but leave enough static address + // space for an explicitly requested all-language build to link. + wasm.initial_memory = @as(u64, if (tree_sitter_grammars == .full) 64 else 32) * 1024 * 1024; + wasm.max_memory = 512 * 1024 * 1024; + web_step.dependOn(&b.addInstallFileWithDir(wasm.getEmittedBin(), .{ .custom = "web" }, "pardes.wasm").step); + inline for (.{ + .{ "src/web/index.html", "index.html" }, + .{ "src/web/app.mjs", "app.mjs" }, + .{ "src/web/pardes.css", "pardes.css" }, + .{ "assets/AdwaitaMono-Regular.ttf", "AdwaitaMono-Regular.ttf" }, + }) |file| web_step.dependOn(&b.addInstallFileWithDir(b.path(file[0]), .{ .custom = "web" }, file[1]).step); + + const run_web_harness = b.addSystemCommand(&.{ "node", "test/web_harness.mjs" }); + run_web_harness.addArg(b.getInstallPath(.{ .custom = "web" }, "")); + run_web_harness.step.dependOn(web_step); + b.step("web-harness", "run the dependency-free JS/WASM DOM harness").dependOn(&run_web_harness.step); b.getInstallStep().dependOn(web_step); } else { // binary name: the native-shaped linux-x86_64 tty build stays `pardes` @@ -587,7 +540,7 @@ pub fn build(b: *std.Build) void { b.installArtifact(exe); const run = b.addRunArtifact(exe); b.step("run", "descend to the pardes").dependOn(&run.step); - web_step.dependOn(&b.addFail("web needs -Dplatform=web -Dtarget=wasm32-emscripten -Ddump=").step); + web_step.dependOn(&b.addFail("web needs -Dplatform=web -Dtarget=wasm32-freestanding -Ddump=").step); // snapshot parity suite: scripted input traces in a pty, captured grids // diffed against the goldens in snapshots/ — the frozen record of parity @@ -736,45 +689,6 @@ pub fn build(b: *std.Build) void { } } -// the html shell: a full-viewport canvas wired into Module (from the prototype) -const html_shell = - \\ - \\ - \\ - \\ - \\ - \\ pardes - \\ - \\ - \\ - \\ - \\ - \\ - \\ - \\ -; - // a bad -D combination: fail both `zig build` and `zig build web` with the why fn failBuild(b: *std.Build, web_step: *std.Build.Step, msg: []const u8) void { const fail = &b.addFail(msg).step; @@ -812,17 +726,3 @@ fn vendoredThemes(b: *std.Build, io: std.Io) []const []const u8 { }.lt); return names.items; } - -fn detectEmscriptenSysroot(b: *std.Build) ?[]const u8 { - if (b.option([]const u8, "emscripten-sysroot", "path to the Emscripten sysroot")) |path| return path; - if (b.sysroot) |path| return path; - if (envPath(b, "EMSCRIPTEN_SYSROOT")) |path| return path; - if (envPath(b, "EM_CACHE")) |cache| return b.pathJoin(&.{ cache, "sysroot" }); - if (envPath(b, "EMSDK")) |emsdk| return b.pathJoin(&.{ emsdk, "upstream", "emscripten", "cache", "sysroot" }); - if (envPath(b, "HOME")) |home| return b.pathJoin(&.{ home, ".cache", "emscripten", "sysroot" }); - return null; -} - -fn envPath(b: *std.Build, name: []const u8) ?[]const u8 { - return b.graph.environ_map.get(name); -} diff --git a/build/snap.zig b/build/snap.zig index a721f483..2c135fef 100644 --- a/build/snap.zig +++ b/build/snap.zig @@ -39,18 +39,17 @@ pub fn addTty(b: *std.Build, opts: struct { b.step("snap", "run the snapshot parity suite (-- --update regenerates goldens)").dependOn(&run_snap.step); } -/// Browser regression suite: make an isolated web build from the real TTY dump -/// captured after running `git ls-files '*.zig'`, with the Zig-only tree-sitter -/// tier. The dependency-free CDP harness then drives its .snap script through -/// real Chromium touch events. This recursive build selects `web`, not -/// `web-snap`, so it bottoms out after one level. +/// Browser regression suite: make an isolated freestanding web build from the +/// real TTY dump captured after running `git ls-files '*.zig'`. The +/// dependency-free Chrome/CDP driver then exercises real DOM pointer events. +/// This recursive build selects `web`, not `web-snap`, so it bottoms out. pub fn addWeb(b: *std.Build) void { const build_web_snap = b.addSystemCommand(&.{ b.graph.zig_exe, "build", "web", "-Dplatform=web", - "-Dtarget=wasm32-emscripten", + "-Dtarget=wasm32-freestanding", "-Dtree-sitter=zig", "-Ddump=test/web-snapshots/source-list.dump.zon", "-p", @@ -67,4 +66,5 @@ pub fn addWeb(b: *std.Build) void { run_web_snap.step.dependOn(&build_web_snap.step); if (b.args) |args| run_web_snap.addArgs(args); b.step("web-snap", "run browser touch/LOOK snapshots (-- --update regenerates goldens)").dependOn(&run_web_snap.step); + b.step("web-e2e", "run the Chrome-driven DOM end-to-end suite").dependOn(&run_web_snap.step); } diff --git a/docs/design.pdf b/docs/design.pdf index 0022972b..83f97dc2 100644 --- a/docs/design.pdf +++ b/docs/design.pdf @@ -2,340 +2,340 @@ % 1 0 obj -<> +<> endobj 2 0 obj -<> +<> endobj 3 0 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obj -<> +<> endobj 68 0 obj -<> +<> endobj 69 0 obj -<> +<> endobj 70 0 obj -<> +<> endobj 71 0 obj -<>]/K[67 0 R 68 0 R 69 0 R 70 0 R]>> +<>]/K[67 0 R 68 0 R 69 0 R 70 0 R]>> endobj 72 0 obj -<> +<> endobj 73 0 obj -<> +<> endobj 74 0 obj -<> +<> endobj 75 0 obj -<> +<> endobj 76 0 obj -<> +<> endobj 77 0 obj -<> +<> endobj 78 0 obj -<> +<> endobj 79 0 obj -<> +<> endobj 80 0 obj -<> +<> endobj 81 0 obj -<> +<> endobj 82 0 obj -<> +<> endobj 83 0 obj -<> +<> endobj 84 0 obj -<> +<> endobj 85 0 obj -<> +<> endobj 86 0 obj -<> +<> endobj 87 0 obj -<> +<> endobj 88 0 obj <> endobj 89 0 obj -<> +<> endobj 90 0 obj -<> +<> endobj 91 0 obj -<> +<> endobj 92 0 obj -<> +<> endobj 93 0 obj -<> +<> endobj 94 0 obj -<> +<> endobj 95 0 obj -<> +<> endobj 96 0 obj -<> +<> endobj 97 0 obj -<> +<> endobj 98 0 obj <> endobj 99 0 obj -<> +<> endobj 100 0 obj -<> +<> endobj 101 0 obj -<> +<> endobj 102 0 obj -<>]/K[79 0 R 80 0 R 81 0 R 82 0 R 83 0 R 84 0 R 85 0 R 86 0 R 87 0 R 88 0 R 89 0 R 90 0 R 91 0 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It runs in three places: the terminal (libvaxis), a native SDL3 window (the -steamdeck), and the browser (wasm + SDL3 + emscripten). The rewrite exists because +steamdeck), and the browser (a freestanding wasm core driven by vanilla +JavaScript and rendered as HTML/CSS). The rewrite exists because the prototype grew three parallel implementations of one program. The rewrite has exactly one program and three thin shells. @@ -59,8 +60,9 @@ input: one event vocabulary, three dialects translated at the door. *Surface* (out): a grid of cells — grapheme, fg, bg, attrs — plus a cursor and per-pane rectangles. This is the *canonical interface*: it is literally what the -tty shell hands to vaxis, cell by cell. The SDL shells rasterize the same grid -through a glyph atlas. If it cannot be expressed in the surface, it does not +tty shell hands to vaxis, cell by cell. SDL rasterizes the same grid through a +glyph atlas; the browser reads a packed copy and patches native DOM cells. If it +cannot be expressed in the surface, it does not exist in pardes. (Pixel images ride along as an attachment per pane: the SDL shells blit RGBA, the tty shell falls back to the petscii matcher, kitty graphics when available.) @@ -136,7 +138,7 @@ only goes down. As built, against the prototype's 12,072 lines of Zig: [*module*], [*lines*], [], [core (pardes.zig + look.zig + syntax + image + dump)], [4,289], [all semantics, all platforms], [modal.zig + petscii.zig (pure, unit-testable)], [1,410], [carried over, unchanged], - [shells (tty.zig; gui.zig = sdl native + web)], [2,768], [translate + rasterize only], + [shells (tty.zig; gui.zig = SDL native; web.zig + web/ = browser)], [2,768], [translate + render only], [main.zig + build.zig], [484], [three targets, codegen for queries], [*application total*], [*7,626*], [vs 12,072 — three full backends instead of one and a half], [snapshot harness (snapshot.zig + e2e_harness.zig)], [831], [the parity oracle, kept], @@ -170,8 +172,8 @@ test. = Build `zig build` produces three statically linked artifacts: `pardes` (vaxis), -`pardes-gui` (SDL3), `pardes.wasm` + shell page (emscripten). Same dependency -set as the prototype — ghostty, vaxis, uucode (shared config), zstbi, SDL +`pardes-gui` (SDL3), `pardes.wasm` + a vanilla DOM shell (wasm32-freestanding). +Same native dependency set as the prototype — ghostty, vaxis, uucode (shared config), zstbi, SDL (castholm, lazy), zig-tree-sitter + grammars — all via `zig fetch`, wired in `build.zig`. Codegen during build, consumed by comptime: tree-sitter `highlights.scm` → options module; tutor text → embedded pane content. Debug @@ -260,23 +262,23 @@ instead of looking it and stepping the list wears the themes. Colors toggles all recolor passes; Debug stats overlay; Dump writes state ZON. *Web (replay viewer parity).* Embedded dump; focus, border/move drags, wheel, -scrollbar, Colors/NextColor, pinch, render scale, and link-LOOK opening a new +scrollbar, Colors/NextColor, and link-LOOK opening a new tab (new — the prototype has no web link handling). One-finger touch is deliberately complete by itself: tap = LOOK; drag past a small slop = natural scroll, with no LOOK on release. A build-generated read-only archive lets LOOK open the current contents of Git-tracked Pardes `.zig` files despite the web shell having no host filesystem. The published launcher dump is captured from a running Pardes TTY after `git ls-files '*.zig'`, so its complete terminal -listing is the set the user can open; the published web build carries only the -Zig tree-sitter grammar and colors opened source panes without shipping unused -C/C++ parsers. A body gesture retains tap-LOOK/drag-scroll, but finger-down on +listing is the set the user can open. The freestanding module carries no host +libc, SDL, or WebGL; Tree-sitter's C runtime and the selected parsers link into +the module through a tiny local ABI shim (Zig is the compact web default). A body gesture retains +tap-LOOK/drag-scroll, but finger-down on a tagline or a one-cell-tolerant pane separator latches to a left-mouse gesture for its lifetime, keeping layout drags out of the scroll heuristic. Touch -circles, trails, and click flashes render only while Debug is enabled. SDL -shells use an -stb_truetype atlas over the SDL GPU API (SPIR-V on native, GLES3 on web), -letterboxed web scaling, pinch, and a touch debug overlay. `PARDES_TEST` -provides PPM and text-grid capture; the browser `.snap` harness drives real -Chromium touch input and reads both text and per-cell styles from the rendered +input translation and scroll/tap state live entirely in the JavaScript shell. +The native SDL shell uses an stb_truetype atlas over the SDL GPU API (SPIR-V). +The browser exposes each cell as selectable, inspectable text and applies the +surface styles with CSS. The browser `.snap` harness drives real Chromium touch +input and reads both text and per-cell styles from the DOM renderer's packed surface. Joystick cursor for the steamdeck is *new* scope — the prototype ships no gamepad input. diff --git a/docs/ideas.typ b/docs/ideas.typ index c954dbbd..3493f758 100644 --- a/docs/ideas.typ +++ b/docs/ideas.typ @@ -7,5 +7,3 @@ - clickable things for the mouse should be navigatable with the keyboard - like if I get some search results I can just use tab to navigate them, the editor should know: - semantic boundaries (maybe just jump to the next clickable thing?) - -|- web: native web client (DOM-rendered, not canvas/WASM). Use WASM only for text logic (parsing, grep, treesitter analysis, look internals) — rendering stays in native DOM/CSS for accessibility, performance, and browser-native text selection. Send structured display commands (layout tree, styled spans, cursor, scroll pos) from WASM to JS via a flat buffer or JSON. diff --git a/docs/web.md b/docs/web.md new file mode 100644 index 00000000..339509d2 --- /dev/null +++ b/docs/web.md @@ -0,0 +1,49 @@ +# DOM web backend + +The web backend keeps the existing Pardes core and replaces the old +Emscripten/SDL/WebGL shell. Zig produces a `wasm32-freestanding` module with no +imports. Vanilla JavaScript owns `requestAnimationFrame`, browser input, window +sizing, and effect/IO dispatch; HTML and CSS render selectable, accessible text. +There is no canvas. + +The default web build links Tree-sitter's C runtime and the Zig grammar inside +that same import-free module. A small freestanding compatibility layer supplies +the C ABI locally, so source panes retain the core's Tree-sitter highlighting +without Emscripten, WASI, or browser libc imports. Other grammar tiers remain +selectable with `-Dtree-sitter=minimal` or `-Dtree-sitter=full`. + +`src/web.zig` is the narrow WASM ABI. Events enter through exported functions, +and `pardes_frame` writes the canonical `Surface` into a packed 20-byte cell +array. `src/web/app.mjs` reads that array in one linear pass and patches stable +DOM nodes. Core effects become browser operations (links, downloads, clipboard) +or `pardes-io` custom events for a process-capable embedding host. + +Build a replay from a dump: + +```sh +zig build web \ + -Dplatform=web \ + -Dtarget=wasm32-freestanding \ + -Dtree-sitter=zig \ + -Ddump=test/web-snapshots/source-list.dump.zon +``` + +The output is in `zig-out/web`. Serve that directory over HTTP; browsers do not +allow a useful WASM module load from `file:` URLs. + +Two dependency-free test layers cover the boundary: + +```sh +# Real WASM in Node plus a small DOM double. +zig build web-harness \ + -Dplatform=web \ + -Dtarget=wasm32-freestanding \ + -Dtree-sitter=zig \ + -Ddump=test/web-snapshots/source-list.dump.zon + +# Real headless Chrome, DOM rendering, and browser touch input. +zig build web-e2e +``` + +Set `PARDES_CHROME` when Chrome/Chromium is not on `PATH` or in a normal +Playwright/Puppeteer cache. diff --git a/src/dump.zig b/src/dump.zig index 0f8cb810..44f61cf4 100644 --- a/src/dump.zig +++ b/src/dump.zig @@ -31,8 +31,8 @@ pub fn outPath(buf: *[1024:0]u8) ?[:0]const u8 { const md = yd.calculateMonthDay(); const ds = es.getDaySeconds(); return std.fmt.bufPrintSentinel(buf, "{s}/pardes-{d:0>4}{d:0>2}{d:0>2}-{d:0>2}{d:0>2}{d:0>2}.zon", .{ - dir, yd.year, md.month.numeric(), - @as(u8, md.day_index) + 1, ds.getHoursIntoDay(), ds.getMinutesIntoHour(), + dir, yd.year, md.month.numeric(), + @as(u8, md.day_index) + 1, ds.getHoursIntoDay(), ds.getMinutesIntoHour(), ds.getSecondsIntoMinute(), }, 0) catch null; } @@ -156,7 +156,7 @@ pub fn readZon(gpa: std.mem.Allocator, bytes: []const u8, label: []const u8) !St } pub fn readZonZ(gpa: std.mem.Allocator, source: [:0]const u8, label: []const u8) !State { - if (builtin.os.tag == .emscripten) { + if (builtin.os.tag == .emscripten or builtin.os.tag == .freestanding) { const state = std.zon.parse.fromSliceAlloc(State, gpa, source, null, .{}) catch |err| { log.err("parse dump {s}: {s}", .{ label, @errorName(err) }); return err; diff --git a/src/web.zig b/src/web.zig new file mode 100644 index 00000000..cebbeebf --- /dev/null +++ b/src/web.zig @@ -0,0 +1,481 @@ +//! Freestanding WebAssembly boundary for the DOM backend. +//! +//! This file deliberately contains no browser imports. JavaScript owns the +//! clock and every IO operation, feeds events through this ABI, and reads one +//! packed cell buffer after `pardes_frame`. Keeping that boundary flat makes +//! the same module directly instantiable by the dependency-free Node harness. + +const std = @import("std"); +const pardes = @import("pardes.zig"); + +const gpa = std.heap.wasm_allocator; +const embedded_dump = @embedFile("embedded.dump.zon"); +const input_capacity = 64 * 1024; +const c_alloc_header_size = 16; + +comptime { + if (c_alloc_header_size < @sizeOf(usize)) @compileError("C allocation header is too small"); +} + +/// Tree-sitter's C runtime is linked into this module. Its conventional +/// allocation symbols share the same wasm allocator as the Zig core and keep +/// the original allocation size in a 16-byte, max-aligned prefix. +export fn malloc(size_arg: usize) callconv(.c) ?*anyopaque { + const size = @max(size_arg, 1); + const total = std.math.add(usize, c_alloc_header_size, size) catch return null; + const bytes = gpa.alignedAlloc(u8, .@"16", total) catch return null; + const header: *align(16) usize = @ptrCast(bytes.ptr); + header.* = total; + return @ptrCast(bytes.ptr + c_alloc_header_size); +} + +export fn calloc(count: usize, size: usize) callconv(.c) ?*anyopaque { + const len = std.math.mul(usize, count, size) catch return null; + const ptr = malloc(len) orelse return null; + if (len != 0) { + const bytes: [*]u8 = @ptrCast(ptr); + @memset(bytes[0..len], 0); + } + return ptr; +} + +export fn free(ptr: ?*anyopaque) callconv(.c) void { + const data = ptr orelse return; + const data_bytes: [*]u8 = @ptrCast(data); + const base: [*]align(16) u8 = @ptrCast(@alignCast(data_bytes - c_alloc_header_size)); + const header: *align(16) usize = @ptrCast(base); + gpa.free(base[0..header.*]); +} + +export fn realloc(ptr: ?*anyopaque, size: usize) callconv(.c) ?*anyopaque { + if (ptr == null) return malloc(size); + if (size == 0) { + free(ptr); + return null; + } + const data_bytes: [*]u8 = @ptrCast(ptr.?); + const base: [*]align(16) u8 = @ptrCast(@alignCast(data_bytes - c_alloc_header_size)); + const header: *align(16) usize = @ptrCast(base); + const old_size = header.* - c_alloc_header_size; + const replacement = malloc(size) orelse return null; + const replacement_bytes: [*]u8 = @ptrCast(replacement); + @memcpy(replacement_bytes[0..@min(old_size, size)], data_bytes[0..@min(old_size, size)]); + free(ptr); + return replacement; +} + +pub const std_options: std.Options = .{ .logFn = logFn }; +pub const panic = std.debug.FullPanic(panicImpl); + +fn logFn( + comptime _: std.log.Level, + comptime _: @EnumLiteral(), + comptime _: []const u8, + _: anytype, +) void {} + +fn panicImpl(_: []const u8, _: ?usize) noreturn { + @trap(); +} + +const WebCell = extern struct { + // UTF-8 graphemes in the core are at most seven bytes. The eighth byte is + // always zero, which also makes a debugger's memory view pleasant. + text: [8]u8, + fg: u32, + bg: u32, + attrs: u16, + len: u8, + flags: u8, +}; + +comptime { + if (@sizeOf(WebCell) != 20) @compileError("the JS frame ABI changed"); +} + +const State = struct { + core: *pardes.Pardes, + arena: std.heap.ArenaAllocator, + cells: std.ArrayList(WebCell) = .empty, + effect_data: std.ArrayList(u8) = .empty, + + fn deinit(s: *State) void { + s.core.deinit(); + s.arena.deinit(); + s.cells.deinit(gpa); + s.effect_data.deinit(gpa); + } +}; + +var state: ?State = null; +var input: [input_capacity]u8 = undefined; +var last_error: u32 = 0; +var effect_aux0: u32 = 0; +var effect_aux1: u32 = 0; + +export fn pardes_init(cols_arg: u32, rows_arg: u32) u32 { + if (state) |*old| old.deinit(); + state = null; + last_error = 0; + + const cols: u16 = @intCast(std.math.clamp(cols_arg, 1, std.math.maxInt(u16))); + const rows: u16 = @intCast(std.math.clamp(rows_arg, 1, std.math.maxInt(u16))); + const core = pardes.Pardes.initFromDump(gpa, .{ .cols = cols, .rows = rows }, embedded_dump) catch |err| { + last_error = @intFromError(err); + return last_error; + }; + state = .{ .core = core, .arena = .init(gpa) }; + core.update(.{ .resize = .{ .cols = cols, .rows = rows } }); + return 0; +} + +export fn pardes_deinit() void { + if (state) |*s| s.deinit(); + state = null; +} + +export fn pardes_last_error() u32 { + return last_error; +} + +export fn pardes_input_ptr() u32 { + return @intCast(@intFromPtr(&input)); +} + +export fn pardes_input_capacity() u32 { + return input_capacity; +} + +export fn pardes_resize(cols_arg: u32, rows_arg: u32) void { + const s = &(state orelse return); + const cols: u16 = @intCast(std.math.clamp(cols_arg, 1, std.math.maxInt(u16))); + const rows: u16 = @intCast(std.math.clamp(rows_arg, 1, std.math.maxInt(u16))); + if (s.core.screen_w == cols and s.core.screen_h == rows) return; + s.core.update(.{ .resize = .{ .cols = cols, .rows = rows } }); +} + +/// `mods`: bit 0 ctrl, bit 1 alt, bit 2 shift. `len` bytes at input are the +/// browser's composed text for printable keys and zero for functional keys. +export fn pardes_key(cp_arg: u32, len_arg: u32, mods: u32) void { + const s = &(state orelse return); + if (cp_arg > std.math.maxInt(u21)) return; + const len: usize = @min(len_arg, input.len); + s.core.update(.{ .key = .{ + .cp = @intCast(cp_arg), + .text = input[0..len], + .ctrl = mods & 1 != 0, + .alt = mods & 2 != 0, + .shift = mods & 4 != 0, + } }); +} + +export fn pardes_paste(len_arg: u32) void { + const s = &(state orelse return); + const len: usize = @min(len_arg, input.len); + s.core.update(.{ .paste = input[0..len] }); +} + +export fn pardes_output(pane: u32, len_arg: u32) void { + const s = &(state orelse return); + if (pane >= pardes.MAX_PANES) return; + const len: usize = @min(len_arg, input.len); + s.core.update(.{ .output = .{ .pane = @intCast(pane), .bytes = input[0..len] } }); +} + +export fn pardes_lsp_response(id: u32, len_arg: u32) void { + const s = &(state orelse return); + const len: usize = @min(len_arg, input.len); + s.core.update(.{ .lsp_resp = .{ .id = id, .rows = input[0..len] } }); +} + +export fn pardes_file_changed(pane: u32, len_arg: u32) void { + const s = &(state orelse return); + if (pane >= pardes.MAX_PANES) return; + const len: usize = @min(len_arg, input.len); + s.core.update(.{ .file_changed = .{ .pane = @intCast(pane), .bytes = input[0..len] } }); +} + +export fn pardes_set_cwd(pane: u32, len_arg: u32) void { + const s = &(state orelse return); + if (pane >= pardes.MAX_PANES) return; + const len: usize = @min(len_arg, input.len); + s.core.setCwd(@intCast(pane), input[0..len]); +} + +export fn pardes_eof(pane: u32) void { + const s = &(state orelse return); + if (pane < pardes.MAX_PANES) s.core.update(.{ .eof = .{ .pane = @intCast(pane) } }); +} + +/// Buttons and kinds are their boundary enum ordinals. Invalid values are +/// ignored rather than reaching an unchecked enum cast inside wasm. +export fn pardes_mouse(button_arg: u32, kind_arg: u32, col_arg: u32, row_arg: u32, mods: u32) void { + const s = &(state orelse return); + const button: pardes.Mouse.Button = switch (button_arg) { + 0 => .left, + 1 => .middle, + 2 => .right, + 3 => .wheel_up, + 4 => .wheel_down, + 5 => .wheel_left, + 6 => .wheel_right, + 7 => .none, + else => return, + }; + const kind: pardes.Mouse.Kind = switch (kind_arg) { + 0 => .press, + 1 => .release, + 2 => .motion, + 3 => .drag, + else => return, + }; + s.core.update(.{ .mouse = .{ + .button = button, + .kind = kind, + .col = @intCast(@min(col_arg, std.math.maxInt(u16))), + .row = @intCast(@min(row_arg, std.math.maxInt(u16))), + .ctrl = mods & 1 != 0, + } }); +} + +export fn pardes_touch_scroll(delta: f32) void { + const s = &(state orelse return); + s.core.update(.{ .touch_scroll = delta }); +} + +export fn pardes_tick() void { + const s = &(state orelse return); + s.core.update(.tick); +} + +/// Render the canonical Surface into a stable, packed JS-facing buffer. +/// Returns the number of cells, or zero if initialization/rendering failed. +export fn pardes_frame() u32 { + const s = &(state orelse return 0); + _ = s.arena.reset(.retain_capacity); + const surface = s.core.render(s.arena.allocator()) catch |err| { + last_error = @intFromError(err); + return 0; + }; + const count: usize = @as(usize, surface.cols) * surface.rows; + s.cells.resize(gpa, count) catch |err| { + last_error = @intFromError(err); + return 0; + }; + for (surface.cells, s.cells.items) |cell, *out| { + out.* = .{ + .text = @splat(0), + .fg = encodeColor(cell.style.fg), + .bg = encodeColor(cell.style.bg), + .attrs = encodeAttrs(cell.style), + .len = if (cell.default) 1 else cell.len, + .flags = @intFromBool(cell.default), + }; + if (cell.default) out.text[0] = ' ' else @memcpy(out.text[0..cell.len], cell.grapheme()); + } + return @intCast(count); +} + +export fn pardes_frame_ptr() u32 { + const s = &(state orelse return 0); + return if (s.cells.items.len == 0) 0 else @intCast(@intFromPtr(s.cells.items.ptr)); +} + +export fn pardes_frame_cols() u32 { + const s = &(state orelse return 0); + return s.core.screen_w; +} + +export fn pardes_frame_rows() u32 { + const s = &(state orelse return 0); + return s.core.screen_h; +} + +export fn pardes_cursor_x() i32 { + const s = &(state orelse return -1); + return if (s.core.surface.cursor) |cursor| cursor.x else -1; +} + +export fn pardes_cursor_y() i32 { + const s = &(state orelse return -1); + return if (s.core.surface.cursor) |cursor| cursor.y else -1; +} + +export fn pardes_cursor_bar() u32 { + const s = &(state orelse return 0); + return @intFromBool(if (s.core.surface.cursor) |cursor| cursor.bar else false); +} + +/// The browser's touch policy asks whether a gesture began on layout chrome. +/// A hit returns row:col packed into u32, including snapping near a separator; +/// 0xffffffff means body text and therefore one-finger scroll/tap-as-LOOK. +export fn pardes_chrome_target(col_arg: u32, row_arg: u32) u32 { + const s = &(state orelse return std.math.maxInt(u32)); + const col: u16 = @intCast(@min(col_arg, std.math.maxInt(u16))); + const row: u16 = @intCast(@min(row_arg, std.math.maxInt(u16))); + const target = chromeTarget(s.core, col, row) orelse return std.math.maxInt(u32); + return (@as(u32, target.row) << 16) | target.col; +} + +// Effect codes consumed by app.mjs. Unknown/host-specific effects are still +// surfaced as `pardes-io` CustomEvents, so embedding the static shell in a +// process-capable host does not require another wasm boundary. +export fn pardes_effect_next() u32 { + const s = &(state orelse return 0); + s.effect_data.clearRetainingCapacity(); + effect_aux0 = 0; + effect_aux1 = 0; + const effect = s.core.nextEffect() orelse return 0; + return switch (effect) { + .spawn => |e| blk: { + effect_aux0 = e.pane; + putEffect(s, e.cwd.slice()); + break :blk 1; + }, + .write => |e| blk: { + effect_aux0 = e.pane; + putEffect(s, e.bytes.slice()); + break :blk 2; + }, + .resize_pty => |e| blk: { + effect_aux0 = e.pane; + effect_aux1 = (@as(u32, e.cols) << 16) | e.rows; + break :blk 3; + }, + .open_link => |e| blk: { + putEffect(s, e.slice()); + break :blk 4; + }, + .save_file => |e| blk: { + effect_aux0 = e.pane; + if (s.core.panes[e.pane]) |pane| if (pane.file) |file| { + putU32(s, @intCast(file.path.len)); + appendEffect(s, file.path); + appendEffect(s, file.content); + }; + break :blk 5; + }, + .write_dump => blk: { + if (s.core.dump_out) |bytes| putEffect(s, bytes); + break :blk 6; + }, + .set_clipboard => blk: { + if (s.core.yank) |bytes| putEffect(s, bytes); + break :blk 7; + }, + .lsp => |e| blk: { + effect_aux0 = e.id; + effect_aux1 = e.pane; + putEffect(s, e.arg.slice()); + break :blk 8; + }, + .watch => |e| blk: { + effect_aux0 = e.pane; + effect_aux1 = @intFromBool(e.on); + if (e.on) if (s.core.panes[e.pane]) |pane| if (pane.file) |file| putEffect(s, file.path); + break :blk 9; + }, + .quit => 10, + }; +} + +export fn pardes_effect_ptr() u32 { + const s = &(state orelse return 0); + return if (s.effect_data.items.len == 0) 0 else @intCast(@intFromPtr(s.effect_data.items.ptr)); +} + +export fn pardes_effect_len() u32 { + const s = &(state orelse return 0); + return @intCast(s.effect_data.items.len); +} + +export fn pardes_effect_aux0() u32 { + return effect_aux0; +} + +export fn pardes_effect_aux1() u32 { + return effect_aux1; +} + +fn encodeColor(color: pardes.Color) u32 { + return switch (color) { + .default => 0x01000000, + .index => |index| 0x02000000 | @as(u32, index), + .rgb => |rgb| (@as(u32, rgb[0]) << 16) | (@as(u32, rgb[1]) << 8) | rgb[2], + }; +} + +fn encodeAttrs(style: pardes.CellStyle) u16 { + var attrs: u16 = 0; + attrs |= @as(u16, @intFromBool(style.bold)) << 0; + attrs |= @as(u16, @intFromBool(style.dim)) << 1; + attrs |= @as(u16, @intFromBool(style.italic)) << 2; + attrs |= @as(u16, @intFromBool(style.blink)) << 3; + attrs |= @as(u16, @intFromBool(style.reverse)) << 4; + attrs |= @as(u16, @intFromBool(style.invisible)) << 5; + attrs |= @as(u16, @intFromBool(style.strikethrough)) << 6; + attrs |= @as(u16, @intFromEnum(style.ul)) << 8; + return attrs; +} + +fn putEffect(s: *State, bytes: []const u8) void { + s.effect_data.clearRetainingCapacity(); + appendEffect(s, bytes); +} + +fn appendEffect(s: *State, bytes: []const u8) void { + s.effect_data.appendSlice(gpa, bytes) catch {}; +} + +fn putU32(s: *State, value: u32) void { + var bytes: [4]u8 = undefined; + std.mem.writeInt(u32, &bytes, value, .little); + appendEffect(s, &bytes); +} + +const Target = struct { col: u16, row: u16 }; + +fn chromeTarget(core: *const pardes.Pardes, col: u16, row: u16) ?Target { + if (row < pardes.TOPBAR_H) return .{ .col = col, .row = row }; + for (core.panes, 0..) |slot, id| { + if (slot == null) continue; + const rect = core.rects[id]; + if (row == rect.y and col >= rect.x and col < rect.x + rect.w and col < rect.x + pardes.config.GUTTER) + return .{ .col = col, .row = rect.y }; + } + for (0..core.ncol -| 1) |column| { + const handle = core.col_x[column] + core.col_w[column] -| 1; + if (col == handle) return .{ .col = handle, .row = row }; + } + for (0..core.ncol) |column| { + if (col < core.col_x[column] or col >= core.col_x[column] + core.col_w[column]) continue; + for (0..core.col_n[column] -| 1) |index| { + const rect = core.rects[core.col_terms[column][index]]; + const handle = rect.y + rect.h -| 1; + if (row == handle) return .{ .col = col, .row = handle }; + } + } + for (core.panes, 0..) |slot, id| { + if (slot == null) continue; + const rect = core.rects[id]; + if (row == rect.y and col >= rect.x and col < rect.x + rect.w) + return .{ .col = col, .row = rect.y }; + } + for (0..core.ncol -| 1) |column| { + const handle = core.col_x[column] + core.col_w[column] -| 1; + if (distance(col, handle) == 1) return .{ .col = handle, .row = row }; + } + for (0..core.ncol) |column| { + if (col < core.col_x[column] or col >= core.col_x[column] + core.col_w[column]) continue; + for (0..core.col_n[column] -| 1) |index| { + const rect = core.rects[core.col_terms[column][index]]; + const handle = rect.y + rect.h -| 1; + if (distance(row, handle) == 1) return .{ .col = col, .row = handle }; + } + } + return null; +} + +fn distance(a: u16, b: u16) u16 { + return if (a > b) a - b else b - a; +} diff --git a/src/web/app.mjs b/src/web/app.mjs new file mode 100644 index 00000000..3d32a16b --- /dev/null +++ b/src/web/app.mjs @@ -0,0 +1,436 @@ +const CELL_SIZE = 20; +const DEFAULT_FG = "#cccccc"; +const DEFAULT_BG = "#121212"; +const decoder = new TextDecoder(); +const encoder = new TextEncoder(); + +const BUTTON = Object.freeze({ left: 0, middle: 1, right: 2, wheelUp: 3, wheelDown: 4, wheelLeft: 5, wheelRight: 6, none: 7 }); +const MOUSE = Object.freeze({ press: 0, release: 1, motion: 2, drag: 3 }); +const SPECIAL_KEYS = Object.freeze({ + Enter: 0x0d, + Backspace: 0x7f, + Tab: 0x09, + Escape: 0x1b, + ArrowUp: 0xf0001, + ArrowDown: 0xf0002, + ArrowLeft: 0xf0003, + ArrowRight: 0xf0004, + Home: 0xf0005, + End: 0xf0006, + PageUp: 0xf0007, + PageDown: 0xf0008, + Delete: 0xf0009, +}); + +export class DomRenderer { + constructor(root, wasm) { + this.root = root; + this.wasm = wasm; + this.rows = []; + this.cells = []; + this.cols = 0; + this.rowCount = 0; + this.snapshot = null; + } + + render() { + const count = this.wasm.pardes_frame(); + const cols = this.wasm.pardes_frame_cols(); + const rows = this.wasm.pardes_frame_rows(); + if (count !== cols * rows) throw new Error(`bad frame: ${count} cells for ${cols}x${rows}`); + this.ensureGrid(cols, rows); + + const ptr = this.wasm.pardes_frame_ptr(); + const view = new DataView(this.wasm.memory.buffer, ptr, count * CELL_SIZE); + const bytes = new Uint8Array(this.wasm.memory.buffer); + const cursorX = this.wasm.pardes_cursor_x(); + const cursorY = this.wasm.pardes_cursor_y(); + const cursorBar = this.wasm.pardes_cursor_bar() !== 0; + const raw = new Array(count); + + for (let index = 0; index < count; index += 1) { + const off = index * CELL_SIZE; + const len = view.getUint8(off + 18); + const fg = view.getUint32(off + 8, true); + const bg = view.getUint32(off + 12, true); + const attrs = view.getUint16(off + 16, true); + const text = decoder.decode(bytes.subarray(ptr + off, ptr + off + len)) || " "; + const x = index % cols; + const y = Math.floor(index / cols); + const cursor = x === cursorX && y === cursorY; + const cell = this.cells[index]; + if (cell.textContent !== text) cell.textContent = text; + const styleKey = `${fg}:${bg}:${attrs}:${cursor ? 1 : 0}:${cursorBar ? 1 : 0}`; + if (cell.pardesStyle !== styleKey) { + applyStyle(cell, fg, bg, attrs, cursor, cursorBar); + cell.pardesStyle = styleKey; + } + raw[index] = { text, fg, bg, attrs }; + } + this.snapshot = { cols, rows, cells: raw, cursorX, cursorY, cursorBar }; + return this.snapshot; + } + + ensureGrid(cols, rows) { + if (cols === this.cols && rows === this.rowCount) return; + const document = this.root.ownerDocument; + const rowNodes = []; + const cells = []; + for (let y = 0; y < rows; y += 1) { + const row = document.createElement("div"); + row.className = "pardes-row"; + row.setAttribute("role", "row"); + row.dataset.row = String(y); + const rowCells = []; + for (let x = 0; x < cols; x += 1) { + const cell = document.createElement("span"); + cell.className = "pardes-cell"; + cell.setAttribute("role", "gridcell"); + cell.dataset.col = String(x); + cell.dataset.row = String(y); + cell.textContent = " "; + rowCells.push(cell); + cells.push(cell); + } + row.replaceChildren(...rowCells); + rowNodes.push(row); + } + this.root.replaceChildren(...rowNodes); + this.root.setAttribute("aria-colcount", String(cols)); + this.root.setAttribute("aria-rowcount", String(rows)); + this.rows = rowNodes; + this.cells = cells; + this.cols = cols; + this.rowCount = rows; + } +} + +export class PardesRuntime { + constructor(root, wasm) { + this.root = root; + this.wasm = wasm; + this.renderer = new DomRenderer(root, wasm); + this.inputPtr = wasm.pardes_input_ptr(); + this.inputCapacity = wasm.pardes_input_capacity(); + this.cellWidth = 1; + this.cellHeight = 1; + this.running = false; + this.pointer = null; + this.frameHandle = 0; + this.bindEvents(); + } + + start() { + this.measure(); + const { cols, rows } = this.gridSize(); + const error = this.wasm.pardes_init(cols, rows); + if (error) throw new Error(`Pardes wasm init failed (${error})`); + this.inputPtr = this.wasm.pardes_input_ptr(); + this.resize(); + this.renderer.render(); + this.drainEffects(); + this.running = true; + this.frameHandle = requestAnimationFrame(() => this.frame()); + this.root.focus({ preventScroll: true }); + } + + stop() { + this.running = false; + if (this.frameHandle) cancelAnimationFrame(this.frameHandle); + this.wasm.pardes_deinit(); + } + + frame() { + if (!this.running) return; + this.wasm.pardes_tick(); + this.renderer.render(); + this.drainEffects(); + this.frameHandle = requestAnimationFrame(() => this.frame()); + } + + measure() { + const probe = this.root.ownerDocument.createElement("span"); + probe.className = "pardes-probe"; + probe.textContent = "M"; + this.root.ownerDocument.body.append(probe); + const rect = probe.getBoundingClientRect(); + probe.remove(); + this.cellWidth = Math.max(1, rect.width); + this.cellHeight = Math.max(1, rect.height); + } + + gridSize() { + return { + cols: Math.max(1, Math.floor(this.root.clientWidth / this.cellWidth)), + rows: Math.max(1, Math.floor(this.root.clientHeight / this.cellHeight)), + }; + } + + resize() { + this.measure(); + const { cols, rows } = this.gridSize(); + this.wasm.pardes_resize(cols, rows); + } + + writeInput(text) { + const data = encoder.encode(text); + if (data.length > this.inputCapacity) throw new Error("browser input exceeds wasm transfer buffer"); + new Uint8Array(this.wasm.memory.buffer, this.inputPtr, data.length).set(data); + return data.length; + } + + key(event) { + const mods = modifiers(event); + let cp = SPECIAL_KEYS[event.key]; + let text = ""; + if (cp === undefined && event.key.length > 0 && [...event.key].length === 1) { + text = mods & 3 ? "" : event.key; + const shortcut = event.code?.match(/^Key([A-Z])$/); + cp = shortcut && (mods & 3) ? shortcut[1].toLowerCase().codePointAt(0) : event.key.codePointAt(0); + } + if (cp === undefined) return; + event.preventDefault(); + this.wasm.pardes_key(cp, this.writeInput(text), mods); + } + + point(event) { + const rect = this.root.getBoundingClientRect(); + return { + col: clamp(Math.floor((event.clientX - rect.left) / this.cellWidth), 0, Math.max(0, this.wasm.pardes_frame_cols() - 1)), + row: clamp(Math.floor((event.clientY - rect.top) / this.cellHeight), 0, Math.max(0, this.wasm.pardes_frame_rows() - 1)), + }; + } + + cellPoint(col, row) { + const rect = this.root.getBoundingClientRect(); + return { x: rect.left + (col + 0.5) * this.cellWidth, y: rect.top + (row + 0.5) * this.cellHeight }; + } + + pointerDown(event) { + event.preventDefault(); + this.root.focus({ preventScroll: true }); + this.root.setPointerCapture?.(event.pointerId); + const point = this.point(event); + if (event.pointerType === "touch") { + const packed = this.wasm.pardes_chrome_target(point.col, point.row) >>> 0; + const chrome = packed !== 0xffffffff; + const snapped = chrome ? { col: packed & 0xffff, row: packed >>> 16 } : point; + this.pointer = { id: event.pointerId, touch: true, chrome, startX: event.clientX, startY: event.clientY, lastX: event.clientX, lastY: event.clientY, point: snapped, scrolling: false, accum: 0 }; + if (chrome) this.wasm.pardes_mouse(BUTTON.left, MOUSE.press, snapped.col, snapped.row, modifiers(event)); + return; + } + const button = pointerButton(event.button); + this.pointer = { id: event.pointerId, touch: false, button }; + this.wasm.pardes_mouse(button, MOUSE.press, point.col, point.row, modifiers(event)); + } + + pointerMove(event) { + const point = this.point(event); + const active = this.pointer?.id === event.pointerId ? this.pointer : null; + if (!active) { + if (event.pointerType !== "touch") this.wasm.pardes_mouse(BUTTON.none, MOUSE.motion, point.col, point.row, modifiers(event)); + return; + } + event.preventDefault(); + if (!active.touch) { + this.wasm.pardes_mouse(active.button, MOUSE.drag, point.col, point.row, modifiers(event)); + return; + } + if (active.chrome) { + this.wasm.pardes_mouse(BUTTON.left, MOUSE.drag, point.col, point.row, modifiers(event)); + return; + } + const travel = Math.hypot(event.clientX - active.startX, event.clientY - active.startY); + if (travel > 8) active.scrolling = true; + if (active.scrolling) { + const dy = event.clientY - active.lastY; + active.accum += dy / this.cellHeight; + while (active.accum <= -1) { + this.wasm.pardes_mouse(BUTTON.wheelDown, MOUSE.press, point.col, point.row, 0); + active.accum += 1; + } + while (active.accum >= 1) { + this.wasm.pardes_mouse(BUTTON.wheelUp, MOUSE.press, point.col, point.row, 0); + active.accum -= 1; + } + this.wasm.pardes_touch_scroll(dy / this.cellHeight); + } + active.lastX = event.clientX; + active.lastY = event.clientY; + } + + pointerUp(event) { + const active = this.pointer?.id === event.pointerId ? this.pointer : null; + if (!active) return; + event.preventDefault(); + const point = this.point(event); + if (active.touch) { + if (active.chrome) this.wasm.pardes_mouse(BUTTON.left, MOUSE.release, point.col, point.row, modifiers(event)); + else if (!active.scrolling) { + this.wasm.pardes_mouse(BUTTON.right, MOUSE.press, point.col, point.row, 0); + this.wasm.pardes_mouse(BUTTON.right, MOUSE.release, point.col, point.row, 0); + } + } else { + this.wasm.pardes_mouse(active.button, MOUSE.release, point.col, point.row, modifiers(event)); + } + if (this.root.hasPointerCapture?.(event.pointerId)) this.root.releasePointerCapture(event.pointerId); + this.pointer = null; + } + + wheel(event) { + event.preventDefault(); + const point = this.point(event); + if (event.deltaY) this.wasm.pardes_mouse(event.deltaY < 0 ? BUTTON.wheelUp : BUTTON.wheelDown, MOUSE.press, point.col, point.row, modifiers(event)); + if (event.deltaX) this.wasm.pardes_mouse(event.deltaX < 0 ? BUTTON.wheelLeft : BUTTON.wheelRight, MOUSE.press, point.col, point.row, modifiers(event)); + } + + paste(event) { + const text = event.clipboardData?.getData("text/plain"); + if (text === undefined) return; + event.preventDefault(); + this.wasm.pardes_paste(this.writeInput(text)); + } + + bindEvents() { + this.root.addEventListener("keydown", (event) => this.key(event)); + this.root.addEventListener("paste", (event) => this.paste(event)); + this.root.addEventListener("contextmenu", (event) => event.preventDefault()); + this.root.addEventListener("pointerdown", (event) => this.pointerDown(event)); + this.root.addEventListener("pointermove", (event) => this.pointerMove(event)); + this.root.addEventListener("pointerup", (event) => this.pointerUp(event)); + this.root.addEventListener("pointercancel", (event) => this.pointerUp(event)); + this.root.addEventListener("wheel", (event) => this.wheel(event), { passive: false }); + globalThis.addEventListener?.("resize", () => this.resize()); + } + + drainEffects() { + for (;;) { + const kind = this.wasm.pardes_effect_next(); + if (!kind) return; + const ptr = this.wasm.pardes_effect_ptr(); + const len = this.wasm.pardes_effect_len(); + const data = new Uint8Array(len); + if (len) data.set(new Uint8Array(this.wasm.memory.buffer, ptr, len)); + const aux0 = this.wasm.pardes_effect_aux0(); + const aux1 = this.wasm.pardes_effect_aux1(); + this.handleEffect(kind, data, aux0, aux1); + } + } + + handleEffect(kind, data, aux0, aux1) { + if (kind === 4) { + globalThis.open?.(decoder.decode(data), "_blank", "noopener,noreferrer"); + } else if (kind === 5) { + const view = new DataView(data.buffer, data.byteOffset, data.byteLength); + const pathLength = data.length >= 4 ? view.getUint32(0, true) : 0; + const path = decoder.decode(data.subarray(4, 4 + pathLength)); + download(data.subarray(4 + pathLength), path.split("/").pop() || "pardes.txt", "text/plain;charset=utf-8"); + } else if (kind === 6) { + download(data, "pardes-dump.zon", "text/plain;charset=utf-8"); + } else if (kind === 7) { + navigator.clipboard?.writeText(decoder.decode(data)).catch(() => {}); + } else if (kind === 10) { + this.running = false; + } else { + this.root.dispatchEvent(new CustomEvent("pardes-io", { detail: { kind, data, aux0, aux1 } })); + } + } +} + +export async function instantiate(url = "./pardes.wasm") { + const response = await fetch(url); + if (!response.ok) throw new Error(`fetch ${url}: HTTP ${response.status}`); + if (WebAssembly.instantiateStreaming) { + try { + return (await WebAssembly.instantiateStreaming(response.clone(), {})).instance.exports; + } catch (error) { + if (!/mime|content-type/i.test(String(error))) throw error; + } + } + return (await WebAssembly.instantiate(await response.arrayBuffer(), {})).instance.exports; +} + +export async function boot(root, url = "./pardes.wasm") { + if (!root) throw new Error("Pardes DOM root is missing"); + const wasm = await instantiate(url); + const runtime = new PardesRuntime(root, wasm); + runtime.start(); + const test = { + grid: () => runtime.renderer.snapshot, + cellPoint: (col, row) => runtime.cellPoint(col, row), + }; + globalThis.pardes = { runtime, wasm, test }; + return runtime; +} + +function applyStyle(cell, fgCode, bgCode, attrs, cursor, cursorBar) { + let fg = color(fgCode, DEFAULT_FG); + let bg = color(bgCode, DEFAULT_BG); + if (attrs & (1 << 4)) [fg, bg] = [bg, fg]; + if (attrs & (1 << 5)) fg = bg; + if (attrs & (1 << 1)) fg = dim(fg); + cell.style.color = fg; + cell.style.backgroundColor = bg; + cell.style.fontWeight = attrs & 1 ? "700" : "400"; + cell.style.fontStyle = attrs & (1 << 2) ? "italic" : "normal"; + const underline = (attrs >>> 8) & 7; + cell.style.textDecorationLine = `${underline ? "underline " : ""}${attrs & (1 << 6) ? "line-through" : ""}`.trim() || "none"; + cell.style.textDecorationStyle = ["solid", "solid", "double", "wavy", "dotted", "dashed"][underline] || "solid"; + cell.style.setProperty("--cell-fg", fg); + cell.style.setProperty("--cell-bg", bg); + cell.classList.toggle("is-cursor", cursor); + cell.classList.toggle("is-bar", cursor && cursorBar); + cell.classList.toggle("is-blinking", Boolean(attrs & (1 << 3))); +} + +function color(encoded, fallback) { + if (encoded === 0x01000000) return fallback; + if ((encoded & 0xff000000) === 0x02000000) return indexedColor(encoded & 0xff); + return `#${(encoded & 0xffffff).toString(16).padStart(6, "0")}`; +} + +function indexedColor(index) { + const ansi = [ + "#000000", "#cc0000", "#4e9a06", "#c4a000", "#3465a4", "#75507b", "#06989a", "#d3d7cf", + "#555753", "#ef2929", "#8ae234", "#fce94f", "#729fcf", "#ad7fa8", "#34e2e2", "#eeeeec", + ]; + if (index < 16) return ansi[index]; + if (index >= 232) { + const level = 8 + (index - 232) * 10; + return rgb(level, level, level); + } + const n = index - 16; + const level = (part) => part === 0 ? 0 : 55 + part * 40; + return rgb(level(Math.floor(n / 36)), level(Math.floor(n / 6) % 6), level(n % 6)); +} + +function dim(value) { + const n = Number.parseInt(value.slice(1), 16); + return rgb(((n >>> 16) & 0xff) * 0.6, ((n >>> 8) & 0xff) * 0.6, (n & 0xff) * 0.6); +} + +function rgb(r, g, b) { + return `#${[r, g, b].map((part) => Math.round(part).toString(16).padStart(2, "0")).join("")}`; +} + +function modifiers(event) { + return (event.ctrlKey ? 1 : 0) | (event.altKey ? 2 : 0) | (event.shiftKey ? 4 : 0); +} + +function pointerButton(button) { + return button === 1 ? BUTTON.middle : button === 2 ? BUTTON.right : BUTTON.left; +} + +function clamp(value, low, high) { + return Math.max(low, Math.min(high, value)); +} + +function download(bytes, name, type) { + if (typeof document === "undefined") return; + const url = URL.createObjectURL(new Blob([bytes], { type })); + const anchor = document.createElement("a"); + anchor.href = url; + anchor.download = name; + anchor.click(); + setTimeout(() => URL.revokeObjectURL(url), 0); +} diff --git a/src/web/index.html b/src/web/index.html new file mode 100644 index 00000000..4012c313 --- /dev/null +++ b/src/web/index.html @@ -0,0 +1,17 @@ + + + + + + Pardes + + + +
+ + + + diff --git a/src/web/libc.c b/src/web/libc.c new file mode 100644 index 00000000..c49fa03e --- /dev/null +++ b/src/web/libc.c @@ -0,0 +1,152 @@ +/* Minimal libc-shaped surface used by Tree-sitter inside the freestanding + * browser module. Allocation lives in web.zig so it shares Zig's wasm heap; + * these routines neither import browser functions nor perform IO. */ +#include +#include +#include +#include +#include +#include +#include + +_Noreturn void abort(void) { + __builtin_trap(); +} + +size_t strlen(const char *str) { + const char *end = str; + while (*end) end++; + return (size_t)(end - str); +} + +char *strchr(const char *str, int character) { + const unsigned char needle = (unsigned char)character; + do { + if ((unsigned char)*str == needle) return (char *)str; + } while (*str++); + return (char *)0; +} + +void *memchr(const void *ptr, int value, size_t count) { + const unsigned char *bytes = (const unsigned char *)ptr; + const unsigned char needle = (unsigned char)value; + for (size_t index = 0; index < count; index++) { + if (bytes[index] == needle) return (void *)(bytes + index); + } + return (void *)0; +} + +int strcmp(const char *lhs, const char *rhs) { + while (*lhs && (unsigned char)*lhs == (unsigned char)*rhs) { + lhs++; + rhs++; + } + return (int)(unsigned char)*lhs - (int)(unsigned char)*rhs; +} + +int strncmp(const char *lhs, const char *rhs, size_t count) { + while (count && *lhs && (unsigned char)*lhs == (unsigned char)*rhs) { + lhs++; + rhs++; + count--; + } + return count ? (int)(unsigned char)*lhs - (int)(unsigned char)*rhs : 0; +} + +char *strncpy(char *restrict dest, const char *restrict src, size_t count) { + char *result = dest; + while (count && *src) { + *dest++ = *src++; + count--; + } + while (count--) *dest++ = '\0'; + return result; +} + +int isprint(int character) { + return character >= 0x20 && character <= 0x7e; +} + +int isdigit(int character) { + return character >= '0' && character <= '9'; +} + +int iswspace(wint_t character) { + return character == ' ' || (character >= '\t' && character <= '\r'); +} + +int iswalnum(wint_t character) { + return iswdigit(character) || iswalpha(character); +} + +int iswalpha(wint_t character) { + return (character >= 'A' && character <= 'Z') || + (character >= 'a' && character <= 'z') || character >= 0x80; +} + +int iswblank(wint_t character) { + return character == ' ' || character == '\t'; +} + +int iswdigit(wint_t character) { + return character >= '0' && character <= '9'; +} + +int iswlower(wint_t character) { + return character >= 'a' && character <= 'z'; +} + +int iswupper(wint_t character) { + return character >= 'A' && character <= 'Z'; +} + +int iswxdigit(wint_t character) { + return iswdigit(character) || (character >= 'A' && character <= 'F') || + (character >= 'a' && character <= 'f'); +} + +wint_t towupper(wint_t character) { + return iswlower(character) ? character - ('a' - 'A') : character; +} + +int vsnprintf(char *restrict buffer, size_t size, const char *restrict format, va_list args) { + (void)format; + (void)args; + if (size) buffer[0] = '\0'; + return 0; +} + +int snprintf(char *restrict buffer, size_t size, const char *restrict format, ...) { + va_list args; + va_start(args, format); + int result = vsnprintf(buffer, size, format, args); + va_end(args); + return result; +} + +int fprintf(FILE *stream, const char *format, ...) { + (void)stream; + (void)format; + return 0; +} + +int fclose(FILE *stream) { + (void)stream; + return 0; +} + +FILE *fdopen(int descriptor, const char *mode) { + (void)descriptor; + (void)mode; + return (FILE *)0; +} + +int fputc(int character, FILE *stream) { + (void)stream; + return character; +} + +int fputs(const char *string, FILE *stream) { + (void)stream; + return (int)strlen(string); +} diff --git a/src/web/libc/include/assert.h b/src/web/libc/include/assert.h new file mode 100644 index 00000000..fd018947 --- /dev/null +++ b/src/web/libc/include/assert.h @@ -0,0 +1,14 @@ +#ifndef PARDES_WEB_ASSERT_H +#define PARDES_WEB_ASSERT_H + +#ifndef static_assert +#define static_assert _Static_assert +#endif + +#ifdef NDEBUG +#define assert(expression) ((void)0) +#else +#define assert(expression) ((expression) ? (void)0 : __builtin_trap()) +#endif + +#endif diff --git a/src/web/libc/include/ctype.h b/src/web/libc/include/ctype.h new file mode 100644 index 00000000..985c8759 --- /dev/null +++ b/src/web/libc/include/ctype.h @@ -0,0 +1,7 @@ +#ifndef PARDES_WEB_CTYPE_H +#define PARDES_WEB_CTYPE_H + +int isprint(int character); +int isdigit(int character); + +#endif diff --git a/src/web/libc/include/endian.h b/src/web/libc/include/endian.h new file mode 100644 index 00000000..a047c88f --- /dev/null +++ b/src/web/libc/include/endian.h @@ -0,0 +1,21 @@ +#ifndef PARDES_WEB_ENDIAN_H +#define PARDES_WEB_ENDIAN_H + +#define __LITTLE_ENDIAN 1234 +#define __BIG_ENDIAN 4321 +#define __BYTE_ORDER __LITTLE_ENDIAN + +#define htole16(value) (value) +#define le16toh(value) (value) +#define htole32(value) (value) +#define le32toh(value) (value) +#define htole64(value) (value) +#define le64toh(value) (value) +#define htobe16(value) __builtin_bswap16(value) +#define be16toh(value) __builtin_bswap16(value) +#define htobe32(value) __builtin_bswap32(value) +#define be32toh(value) __builtin_bswap32(value) +#define htobe64(value) __builtin_bswap64(value) +#define be64toh(value) __builtin_bswap64(value) + +#endif diff --git a/src/web/libc/include/inttypes.h b/src/web/libc/include/inttypes.h new file mode 100644 index 00000000..7e795746 --- /dev/null +++ b/src/web/libc/include/inttypes.h @@ -0,0 +1,8 @@ +#ifndef PARDES_WEB_INTTYPES_H +#define PARDES_WEB_INTTYPES_H + +#include + +#define PRId32 "d" + +#endif diff --git a/src/web/libc/include/limits.h b/src/web/libc/include/limits.h new file mode 100644 index 00000000..6ba31375 --- /dev/null +++ b/src/web/libc/include/limits.h @@ -0,0 +1,9 @@ +#ifndef PARDES_WEB_LIMITS_H +#define PARDES_WEB_LIMITS_H + +#define CHAR_BIT __CHAR_BIT__ +#define INT_MAX __INT_MAX__ +#define UINT_MAX (__INT_MAX__ * 2U + 1U) +#define USHRT_MAX (__SHRT_MAX__ * 2U + 1U) + +#endif diff --git a/src/web/libc/include/stdio.h b/src/web/libc/include/stdio.h new file mode 100644 index 00000000..92895054 --- /dev/null +++ b/src/web/libc/include/stdio.h @@ -0,0 +1,19 @@ +#ifndef PARDES_WEB_STDIO_H +#define PARDES_WEB_STDIO_H + +#include +#include + +typedef struct PardesWebFile FILE; + +#define stderr ((FILE *)0) + +int fprintf(FILE *stream, const char *format, ...); +int fclose(FILE *stream); +FILE *fdopen(int descriptor, const char *mode); +int fputc(int character, FILE *stream); +int fputs(const char *string, FILE *stream); +int snprintf(char *restrict buffer, size_t size, const char *restrict format, ...); +int vsnprintf(char *restrict buffer, size_t size, const char *restrict format, va_list args); + +#endif diff --git a/src/web/libc/include/stdlib.h b/src/web/libc/include/stdlib.h new file mode 100644 index 00000000..cb280904 --- /dev/null +++ b/src/web/libc/include/stdlib.h @@ -0,0 +1,16 @@ +#ifndef PARDES_WEB_STDLIB_H +#define PARDES_WEB_STDLIB_H + +#include + +#ifndef NULL +#define NULL ((void *)0) +#endif + +void *malloc(size_t size); +void *calloc(size_t count, size_t size); +void *realloc(void *ptr, size_t size); +void free(void *ptr); +_Noreturn void abort(void); + +#endif diff --git a/src/web/libc/include/string.h b/src/web/libc/include/string.h new file mode 100644 index 00000000..7e5b8783 --- /dev/null +++ b/src/web/libc/include/string.h @@ -0,0 +1,17 @@ +#ifndef PARDES_WEB_STRING_H +#define PARDES_WEB_STRING_H + +#include + +void *memchr(const void *ptr, int value, size_t count); +int memcmp(const void *lhs, const void *rhs, size_t count); +void *memcpy(void *restrict dest, const void *restrict src, size_t count); +void *memmove(void *dest, const void *src, size_t count); +void *memset(void *dest, int value, size_t count); +size_t strlen(const char *str); +char *strchr(const char *str, int character); +int strcmp(const char *lhs, const char *rhs); +int strncmp(const char *lhs, const char *rhs, size_t count); +char *strncpy(char *restrict dest, const char *restrict src, size_t count); + +#endif diff --git a/src/web/libc/include/wchar.h b/src/web/libc/include/wchar.h new file mode 100644 index 00000000..4888631e --- /dev/null +++ b/src/web/libc/include/wchar.h @@ -0,0 +1,9 @@ +#ifndef PARDES_WEB_WCHAR_H +#define PARDES_WEB_WCHAR_H + +#include +#include + +typedef __WCHAR_TYPE__ wchar_t; + +#endif diff --git a/src/web/libc/include/wctype.h b/src/web/libc/include/wctype.h new file mode 100644 index 00000000..77bbabe9 --- /dev/null +++ b/src/web/libc/include/wctype.h @@ -0,0 +1,18 @@ +#ifndef PARDES_WEB_WCTYPE_H +#define PARDES_WEB_WCTYPE_H + +#include + +typedef unsigned int wint_t; + +int iswalnum(wint_t character); +int iswalpha(wint_t character); +int iswblank(wint_t character); +int iswdigit(wint_t character); +int iswlower(wint_t character); +int iswspace(wint_t character); +int iswupper(wint_t character); +int iswxdigit(wint_t character); +wint_t towupper(wint_t character); + +#endif diff --git a/src/web/pardes.css b/src/web/pardes.css new file mode 100644 index 00000000..a959e6c3 --- /dev/null +++ b/src/web/pardes.css @@ -0,0 +1,91 @@ +@font-face { + font-family: "Pardes Mono"; + src: url("./AdwaitaMono-Regular.ttf") format("truetype"); + font-display: swap; +} + +:root { + color-scheme: dark; + --pardes-bg: #121212; + --pardes-fg: #cccccc; + --pardes-font-size: 18px; + --pardes-cell-width: 9.333333px; + --pardes-cell-height: 19.459459px; +} + +html, +body { + width: 100%; + height: 100%; + margin: 0; + overflow: hidden; + background: var(--pardes-bg); +} + +.pardes { + box-sizing: border-box; + width: 100vw; + height: 100vh; + overflow: hidden; + color: var(--pardes-fg); + background: var(--pardes-bg); + font-family: "Pardes Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; + font-size: var(--pardes-font-size); + font-variant-ligatures: none; + line-height: 1; + outline: none; + touch-action: none; + user-select: text; + cursor: text; +} + +.pardes-row { + display: flex; + width: max-content; + height: var(--pardes-cell-height); + line-height: var(--pardes-cell-height); + white-space: pre; +} + +.pardes-cell { + box-sizing: border-box; + display: inline-block; + flex: 0 0 var(--pardes-cell-width); + width: var(--pardes-cell-width); + height: var(--pardes-cell-height); + overflow: hidden; + text-align: left; + white-space: pre; +} + +.pardes-cell.is-cursor { + color: var(--cell-bg) !important; + background: var(--cell-fg) !important; +} + +.pardes-cell.is-cursor.is-bar { + color: var(--cell-fg) !important; + background: var(--cell-bg) !important; + box-shadow: inset 2px 0 var(--cell-fg); +} + +.pardes-cell.is-blinking { + animation: pardes-blink 1s step-end infinite; +} + +.pardes-probe { + position: fixed; + left: -10000px; + top: -10000px; + width: var(--pardes-cell-width); + height: var(--pardes-cell-height); + visibility: hidden; +} + +@keyframes pardes-blink { + 50% { opacity: 0; } +} + +@media (prefers-reduced-motion: reduce) { + .pardes-cell.is-blinking { animation: none; } +} diff --git a/src/web/zstbi.zig b/src/web/zstbi.zig new file mode 100644 index 00000000..76b144f7 --- /dev/null +++ b/src/web/zstbi.zig @@ -0,0 +1,30 @@ +//! Freestanding image-decoder shim. +//! +//! The browser core has no libc or C allocator ABI. Image bytes still survive +//! dumps, but decoding belongs in the JavaScript IO layer rather than pulling +//! stb_image and an Emscripten runtime into the state machine. + +const std = @import("std"); + +pub fn init(_: std.Io, _: std.mem.Allocator) void {} +pub fn deinit() void {} + +pub const Image = struct { + data: []u8 = &.{}, + width: u32 = 0, + height: u32 = 0, + num_components: u32 = 4, + bytes_per_component: u32 = 1, + bytes_per_row: u32 = 0, + is_hdr: bool = false, + + pub fn loadFromMemory(_: []const u8, _: u32) !Image { + return error.ImageDecodeUnavailable; + } + + pub fn resize(_: *const Image, _: u32, _: u32) Image { + return .{}; + } + + pub fn deinit(_: *Image) void {} +}; diff --git a/test/web-snapshots/README.md b/test/web-snapshots/README.md index d2ea84f8..c6564ba0 100644 --- a/test/web-snapshots/README.md +++ b/test/web-snapshots/README.md @@ -13,6 +13,7 @@ To recapture it: The visible `.body` must exactly match the command plus every path reported by Git (and the final prompt). The base64 PTY stream must contain the command -itself. `source-list.snap` then drives that dump through Chromium: it checks the -full listing, taps `build.zig`, snapshots tree-sitter style runs, resizes the -pane separator, and finally verifies body scrolling. +itself. `source-list.snap` then drives the freestanding WASM + DOM build through +Chromium: it checks the full listing, taps `build.zig`, snapshots packed cell +styles (including Tree-sitter's Zig highlighting), resizes the pane separator, +and finally verifies body scrolling. diff --git a/test/web-snapshots/source-list.golden b/test/web-snapshots/source-list.golden index d4321fbb..35f86de6 100644 --- a/test/web-snapshots/source-list.golden +++ b/test/web-snapshots/source-list.golden @@ -1,6 +1,6 @@ == snap launcher grid=120x37 cursor=4,23 -|Kill Newcol Tutor Debug Colors NextColor Crt Dump -| TTY /home/goblin/00-projects/0x4200.cafe/02-pardes-code Del +|Kill Newcol Tutor Debug NextColor Dump Find Grep Help +|$ /home/goblin/00-projects/0x4200.cafe/02-pardes-code Del | $ git ls-files '*.zig' | build.zig | src/crt.zig @@ -36,155 +36,155 @@ | | | -== snap source-open grid=120x37 cursor=7,25 -|Kill Newcol Tutor Debug Colors NextColor Crt Dump -| TTY /home/goblin/00-projects/0x4200.cafe/02-pardes-code Del -| $ git ls-files '*.zig' -| build.zig -| src/crt.zig -| src/deck.zig -| src/dump.zig -| src/gui.zig -| src/image.zig -| src/look.zig -| src/main.zig -| src/modal.zig -| src/pardes.zig -| src/petscii.zig -| src/syntax.zig -| src/tracy.zig -| src/tty.zig -| test/deck/replay.zig -| test/deck/schema.zig -| test/e2e_harness.zig -| test/hxdiff.zig -| test/snapshot.zig -| uucode_config.zig -| -| NOR build.zig Save Del -| 1 const std = @import("std"); -| 2 -| 3 pub const Platform = enum { tty, gui, web }; -| 4 pub const TreeSitterGrammars = enum { disabled, zig, minimal, full }; -| 5 const GhosttyArtifact = enum { ghostty, lib }; -| 6 -| 7 pub fn build(b: *std.Build) void { -| 8 // Default target is the Steam Deck (deckcap's trick): x86_64 linux-gnu -| 9 // with the glibc version pinned low, so a binary built on a rolling- -| 10 // release host runs on SteamOS — a native build references the host's -| 11 // newer versioned libm/libc symbols and dies with "GLIBC_2.4x not found" -| 12 // on the deck. Override with -Dtarget= as usual. +== snap source-open grid=120x37 cursor=7,2 +|Kill Newcol Tutor Debug NextColor Dump Find Grep Help +| build.zig Save Del $ /home/goblin/00-projects/0x4200.cafe/02-pardes-code Del +| 1 const std = @import("std"); $ git ls-files '*.zig' +| 2 const snap_build = @import("build/snap.zig"); build.zig +| 3 src/crt.zig +| 4 pub const Platform = enum { tty, gui, web }; src/deck.zig +| 5 src/dump.zig +| 6 /// The ZLS the language backend links, spelled once. src/gui.zig +| 7 /// build.zig.zon pins (0.16.x branch) and is passed src/image.zig +| 8 /// `-Dversion-string` (its build.zig otherwise shell src/look.zig +| 9 /// which fails on a fetched package that has no .git src/main.zig +| 10 const zls_version = "0.16.1-dev+3e0d0820"; src/modal.zig +| 11 pub const TreeSitterGrammars = enum { disabled, zig, src/pardes.zig +| 12 src/petscii.zig +| 13 pub fn build(b: *std.Build) void { src/syntax.zig +| 14 // Default target is the Steam Deck (deckcap's tr src/tracy.zig +| 15 // with the glibc version pinned low, so a binary src/tty.zig +| 16 // release host runs on SteamOS — a native build test/deck/replay.zig +| 17 // newer versioned libm/libc symbols and dies wit test/deck/schema.zig +| 18 // on the deck. Override with -Dtarget= as usual. test/e2e_harness.zig +| 19 const target = b.standardTargetOptions(.{ .defaul test/hxdiff.zig +| 20 .cpu_arch = .x86_64, test/snapshot.zig +| 21 .os_tag = .linux, uucode_config.zig +| 22 .abi = .gnu, +| 23 .glibc_version = .{ .major = 2, .minor = 38, +| 24 } }); +| 25 const requested_optimize = b.standardOptimizeOpti +| 26 const platform = b.option(Platform, "platform", " +| 27 const static = b.option(bool, "static", "statical +| 28 const dump_path = b.option([]const u8, "dump", "d +| 29 const is_web = platform == .web; +| 30 const is_web_target = target.result.cpu.arch == . +| 31 // wasm: size is the budget +| 32 const optimize = if (is_web) .ReleaseSmall else r +| 33 // The vendored C is never what we are debugging, +| 34 // the app: 90% of a Debug startup is tree-sitter +| 35 // (perf: ts_query__perform_analysis + ts_lookahe == style source-open -|0: 0-48 #969696,#2c2a3e, 49-119 d,#2c2a3e, -|1: 0-1 d,#383c54, 2-60 #969696,#2c2a3e, 61-119 d,#2c2a3e, -|2: 0-1 d,#525252, 2-119 d,d, -|3: 0-1 d,#525252, 2-119 d,d, -|4: 0-1 d,#525252, 2-119 d,d, -|5: 0-1 d,#525252, 2-119 d,d, -|6: 0-1 d,#525252, 2-119 d,d, -|7: 0-1 d,#525252, 2-119 d,d, -|8: 0-1 d,#525252, 2-119 d,d, -|9: 0-1 d,#525252, 2-119 d,d, -|10: 0-1 d,#525252, 2-119 d,d, -|11: 0-1 d,#525252, 2-119 d,d, -|12: 0-1 d,#525252, 2-119 d,d, -|13: 0-1 d,#525252, 2-119 d,d, -|14: 0-1 d,#525252, 2-119 d,d, -|15: 0-1 d,#525252, 2-119 d,d, -|16: 0-1 d,#525252, 2-119 d,d, -|17: 0-1 d,#525252, 2-119 d,d, -|18: 0-1 d,#525252, 2-119 d,d, -|19: 0-1 d,#525252, 2-119 d,d, -|20: 0-1 d,#525252, 2-119 d,d, -|21: 0-1 d,#525252, 2-119 d,d, -|22: 0-1 d,#525252, 2-119 d,d, -|23: 0-1 d,#525252, 2-119 d,d, -|24: 0-1 d,#6e4fd0, 2-23 #969696,#2c2a3e, 24-119 d,#2c2a3e, -|25: 0-1 d,#525252, 2-6 #969696,#2c2a3e, 7-18 d,d, 19-25 #cc70d8,d,b 26-26 d,d, 27-31 #8ab87a,d, 32-119 d,d, -|26: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-119 d,d, -|27: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-27 d,d, 28-31 #cc70d8,d,b 32-119 d,d, -|28: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-37 d,d, 38-41 #cc70d8,d,b 42-119 d,d, -|29: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-30 d,d, 31-34 #cc70d8,d,b 35-119 d,d, -|30: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-119 d,d, -|31: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-10 d,d, 11-12 #cc70d8,d,b 13-119 d,d, -|32: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-10 d,d, 11-81 #f0f0f0,d,b 82-119 d,d, -|33: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-10 d,d, 11-79 #f0f0f0,d,b 80-119 d,d, -|34: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-10 d,d, 11-80 #f0f0f0,d,b 81-119 d,d, -|35: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-10 d,d, 11-83 #f0f0f0,d,b 84-119 d,d, -|36: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-10 d,d, 11-59 #f0f0f0,d,b 60-119 d,d, -== snap separator-resized grid=120x37 cursor=7,21 -|Kill Newcol Tutor Debug Colors NextColor Crt Dump -| TTY /home/goblin/00-projects/0x4200.cafe/02-pardes-code Del -| src/dump.zig -| src/gui.zig -| src/image.zig -| src/look.zig -| src/main.zig -| src/modal.zig -| src/pardes.zig -| src/petscii.zig -| src/syntax.zig -| src/tracy.zig -| src/tty.zig -| test/deck/replay.zig -| test/deck/schema.zig -| test/e2e_harness.zig -| test/hxdiff.zig -| test/snapshot.zig -| uucode_config.zig -|╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ -| NOR build.zig Save Del -| 1 const std = @import("std"); -| 2 -| 3 pub const Platform = enum { tty, gui, web }; -| 4 pub const TreeSitterGrammars = enum { disabled, zig, minimal, full }; -| 5 const GhosttyArtifact = enum { ghostty, lib }; -| 6 -| 7 pub fn build(b: *std.Build) void { -| 8 // Default target is the Steam Deck (deckcap's trick): x86_64 linux-gnu -| 9 // with the glibc version pinned low, so a binary built on a rolling- -| 10 // release host runs on SteamOS — a native build references the host's -| 11 // newer versioned libm/libc symbols and dies with "GLIBC_2.4x not found" -| 12 // on the deck. Override with -Dtarget= as usual. -| 13 const target = b.standardTargetOptions(.{ .default_target = .{ -| 14 .cpu_arch = .x86_64, -| 15 .os_tag = .linux, -| 16 .abi = .gnu, -== snap source-scrolled grid=120x37 cursor=0,0 -|Kill Newcol Tutor Debug Colors NextColor Crt Dump -| TTY /home/goblin/00-projects/0x4200.cafe/02-pardes-code Del -| src/dump.zig -| src/gui.zig -| src/image.zig -| src/look.zig -| src/main.zig -| src/modal.zig -| src/pardes.zig -| src/petscii.zig -| src/syntax.zig -| src/tracy.zig -| src/tty.zig -| test/deck/replay.zig -| test/deck/schema.zig -| test/e2e_harness.zig -| test/hxdiff.zig -| test/snapshot.zig -| uucode_config.zig -| -| NOR build.zig Save Del -| 10 // release host runs on SteamOS — a native build references the host's -| 11 // newer versioned libm/libc symbols and dies with "GLIBC_2.4x not found" -| 12 // on the deck. Override with -Dtarget= as usual. -| 13 const target = b.standardTargetOptions(.{ .default_target = .{ -| 14 .cpu_arch = .x86_64, -| 15 .os_tag = .linux, -| 16 .abi = .gnu, -| 17 .glibc_version = .{ .major = 2, .minor = 38, .patch = 0 }, -| 18 } }); -| 19 const requested_optimize = b.standardOptimizeOption(.{}); -| 20 const platform = b.option(Platform, "platform", "which shell to build (tty, gui, web)") orelse .tty; -| 21 const static = b.option(bool, "static", "statically link") orelse false; -| 22 const dump_path = b.option([]const u8, "dump", "dump .zon embedded into the web shell (-Dplatform=web)"); -| 23 const emcc_path = b.option([]const u8, "emcc", "emcc for the web shell's final link") orelse "/usr/lib/emscri -| 24 const is_emscripten = target.result.os.tag == .emscripten; -| 25 // wasm: size is the budget +|0: 0-52 #969696,#2c2a3e, 53-119 d,#2c2a3e, +|1: 0-1 #ffffff,#6e4fd0, 2-19 #969696,#2c2a3e, 20-59 d,#2c2a3e, 60-61 #ffffff,#383c54, 62-116 #969696,#2c2a3e, 117-119 d,#2c2a3e, +|2: 0-0 d,#525252, 1-1 d,d, 2-6 #969696,#2c2a3e, 7-18 d,d, 19-25 #cc70d8,d,b 26-26 d,d, 27-31 #8ab87a,d, 32-59 d,d, 60-60 d,#525252, 61-119 d,d, +|3: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-25 d,d, 26-32 #cc70d8,d,b 33-33 d,d, 34-49 #8ab87a,d, 50-59 d,d, 60-60 d,#525252, 61-119 d,d, +|4: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 d,d, 60-60 d,#525252, 61-119 d,d, +|5: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-27 d,d, 28-31 #cc70d8,d,b 32-59 d,d, 60-60 d,#525252, 61-119 d,d, +|6: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 d,d, 60-60 d,#525252, 61-119 d,d, +|7: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +|8: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +|9: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +|10: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +|11: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-26 d,d, 27-47 #8ab87a,d, 48-59 d,d, 60-60 d,#525252, 61-119 d,d, +|12: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-37 d,d, 38-41 #cc70d8,d,b 42-59 d,d, 60-60 d,#525252, 61-119 d,d, +|13: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 d,d, 60-60 d,#525252, 61-119 d,d, +|14: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-10 d,d, 11-12 #cc70d8,d,b 13-59 d,d, 60-60 d,#525252, 61-119 d,d, +|15: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-10 d,d, 11-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +|16: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-10 d,d, 11-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +|17: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-10 d,d, 11-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +|18: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-10 d,d, 11-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +|19: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-10 d,d, 11-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +|20: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 d,d, 60-60 d,#525252, 61-119 d,d, +|21: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 d,d, 60-60 d,#525252, 61-119 d,d, +|22: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 d,d, 60-60 d,#525252, 61-119 d,d, +|23: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 d,d, 60-60 d,#525252, 61-119 d,d, +|24: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-43 d,d, 44-44 #d0c070,d, 45-55 d,d, 56-57 #d0c070,d, 58-59 d,d, 60-60 d,#525252, 61-119 d,d, +|25: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 d,d, 60-60 d,#525252, 61-119 d,d, +|26: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 d,d, 60-60 d,#525252, 61-119 d,d, +|27: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-46 d,d, 47-56 #8ab87a,d, 57-58 d,d, 59-59 #8ab87a,d, 60-60 d,#525252, 61-119 d,d, +|28: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-40 d,d, 41-48 #8ab87a,d, 49-50 d,d, 51-59 #8ab87a,d, 60-60 d,#525252, 61-119 d,d, +|29: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-49 d,d, 50-55 #8ab87a,d, 56-57 d,d, 58-59 #8ab87a,d, 60-60 d,#525252, 61-119 d,d, +|30: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 d,d, 60-60 d,#525252, 61-119 d,d, +|31: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-59 d,d, 60-60 d,#525252, 61-119 d,d, +|32: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-10 d,d, 11-37 #f0f0f0,d,b 38-59 d,d, 60-60 d,#525252, 61-119 d,d, +|33: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-27 d,d, 28-29 #cc70d8,d,b 30-53 d,d, 54-57 #cc70d8,d,b 58-59 d,d, 60-60 d,#525252, 61-119 d,d, +|34: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-10 d,d, 11-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +|35: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-10 d,d, 11-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +|36: 0-0 d,#2a2a2a, 1-1 d,d, 2-6 #5a5a5a,d, 7-10 d,d, 11-59 #f0f0f0,d,b 60-60 d,#525252, 61-119 d,d, +== snap separator-resized grid=120x37 cursor=7,2 +|Kill Newcol Tutor Debug NextColor Dump Find Grep Help +| build.zig Save Del ╎$ /home/goblin/00-projects/0x4200.cafe/02-pardes-code Del +| 1 const std = @import("std"); ╎ $ git ls-files '*.zig' +| 2 const snap_build = @import("build/snap.zig"); ╎ build.zig +| 3 ╎ src/crt.zig +| 4 pub const Platform = enum { tty, gui, web }; ╎ src/deck.zig +| 5 ╎ src/dump.zig +| 6 /// The ZLS the language backend links, spelled once.╎ src/gui.zig +| 7 /// build.zig.zon pins (0.16.x branch) and is passed ╎ src/image.zig +| 8 /// `-Dversion-string` (its build.zig otherwise shell╎ src/look.zig +| 9 /// which fails on a fetched package that has no .git╎ src/main.zig +| 10 const zls_version = "0.16.1-dev+3e0d0820"; ╎ src/modal.zig +| 11 pub const TreeSitterGrammars = enum { disabled, zig, ╎ src/pardes.zig +| 12 ╎ src/petscii.zig +| 13 pub fn build(b: *std.Build) void { ╎ src/syntax.zig +| 14 // Default target is the Steam Deck (deckcap's tr╎ src/tracy.zig +| 15 // with the glibc version pinned low, so a binary╎ src/tty.zig +| 16 // release host runs on SteamOS — a native build ╎ test/deck/replay.zig +| 17 // newer versioned libm/libc symbols and dies wit╎ test/deck/schema.zig +| 18 // on the deck. Override with -Dtarget= as usual.╎ test/e2e_harness.zig +| 19 const target = b.standardTargetOptions(.{ .defaul╎ test/hxdiff.zig +| 20 .cpu_arch = .x86_64, ╎ test/snapshot.zig +| 21 .os_tag = .linux, ╎ uucode_config.zig +| 22 .abi = .gnu, ╎ +| 23 .glibc_version = .{ .major = 2, .minor = 38, ╎ +| 24 } }); ╎ +| 25 const requested_optimize = b.standardOptimizeOpti╎ +| 26 const platform = b.option(Platform, "platform", "╎ +| 27 const static = b.option(bool, "static", "statical╎ +| 28 const dump_path = b.option([]const u8, "dump", "d╎ +| 29 const is_web = platform == .web; ╎ +| 30 const is_web_target = target.result.cpu.arch == .╎ +| 31 // wasm: size is the budget ╎ +| 32 const optimize = if (is_web) .ReleaseSmall else r╎ +| 33 // The vendored C is never what we are debugging,╎ +| 34 // the app: 90% of a Debug startup is tree-sitter╎ +| 35 // (perf: ts_query__perform_analysis + ts_lookahe╎ +== snap source-scrolled grid=120x37 cursor=7,2 +|Kill Newcol Tutor Debug NextColor Dump Find Grep Help +| build.zig Save Del ╎$ /home/goblin/00-projects/0x4200.cafe/02-pardes-code Del +| 1 const std = @import("std"); ╎ $ git ls-files '*.zig' +| 2 const snap_build = @import("build/snap.zig"); ╎ build.zig +| 3 ╎ src/crt.zig +| 4 pub const Platform = enum { tty, gui, web }; ╎ src/deck.zig +| 5 ╎ src/dump.zig +| 6 /// The ZLS the language backend links, spelled once.╎ src/gui.zig +| 7 /// build.zig.zon pins (0.16.x branch) and is passed ╎ src/image.zig +| 8 /// `-Dversion-string` (its build.zig otherwise shell╎ src/look.zig +| 9 /// which fails on a fetched package that has no .git╎ src/main.zig +| 10 const zls_version = "0.16.1-dev+3e0d0820"; ╎ src/modal.zig +| 11 pub const TreeSitterGrammars = enum { disabled, zig, ╎ src/pardes.zig +| 12 ╎ src/petscii.zig +| 13 pub fn build(b: *std.Build) void { ╎ src/syntax.zig +| 14 // Default target is the Steam Deck (deckcap's tr╎ src/tracy.zig +| 15 // with the glibc version pinned low, so a binary╎ src/tty.zig +| 16 // release host runs on SteamOS — a native build ╎ test/deck/replay.zig +| 17 // newer versioned libm/libc symbols and dies wit╎ test/deck/schema.zig +| 18 // on the deck. Override with -Dtarget= as usual.╎ test/e2e_harness.zig +| 19 const target = b.standardTargetOptions(.{ .defaul╎ test/hxdiff.zig +| 20 .cpu_arch = .x86_64, ╎ test/snapshot.zig +| 21 .os_tag = .linux, ╎ uucode_config.zig +| 22 .abi = .gnu, ╎ +| 23 .glibc_version = .{ .major = 2, .minor = 38, ╎ +| 24 } }); ╎ +| 25 const requested_optimize = b.standardOptimizeOpti╎ +| 26 const platform = b.option(Platform, "platform", "╎ +| 27 const static = b.option(bool, "static", "statical╎ +| 28 const dump_path = b.option([]const u8, "dump", "d╎ +| 29 const is_web = platform == .web; ╎ +| 30 const is_web_target = target.result.cpu.arch == .╎ +| 31 // wasm: size is the budget ╎ +| 32 const optimize = if (is_web) .ReleaseSmall else r╎ +| 33 // The vendored C is never what we are debugging,╎ +| 34 // the app: 90% of a Debug startup is tree-sitter╎ +| 35 // (perf: ts_query__perform_analysis + ts_lookahe╎ diff --git a/test/web_harness.mjs b/test/web_harness.mjs new file mode 100644 index 00000000..bcd45746 --- /dev/null +++ b/test/web_harness.mjs @@ -0,0 +1,136 @@ +#!/usr/bin/env node +// Dependency-free JS harness: instantiate the real freestanding core in Node, +// then render its packed frame through app.mjs against a deliberately tiny DOM +// double. Chrome is reserved for the separate browser/e2e snapshot harness. + +import assert from "node:assert/strict"; +import fs from "node:fs/promises"; +import path from "node:path"; +import { pathToFileURL } from "node:url"; + +if (process.argv.length !== 3) { + console.error("usage: node test/web_harness.mjs "); + process.exit(2); +} + +async function main() { + const webDir = path.resolve(process.argv[2]); + const wasmBytes = await fs.readFile(path.join(webDir, "pardes.wasm")); + const module = await WebAssembly.compile(wasmBytes); + assert.deepEqual(WebAssembly.Module.imports(module), [], "the freestanding core must have no JS or libc imports"); + const { exports: wasm } = await WebAssembly.instantiate(module, {}); + + for (const name of [ + "memory", "pardes_init", "pardes_frame", "pardes_frame_ptr", "pardes_key", + "pardes_mouse", "pardes_output", "pardes_lsp_response", "pardes_file_changed", + "pardes_effect_next", "pardes_deinit", + ]) assert.ok(wasm[name], `missing wasm export ${name}`); + + assert.equal(wasm.pardes_init(80, 24), 0, `wasm init error ${wasm.pardes_last_error()}`); + assert.equal(wasm.pardes_frame(), 80 * 24); + assert.ok(wasm.pardes_frame_ptr() > 0); + + const { DomRenderer } = await import(pathToFileURL(path.join(webDir, "app.mjs"))); + const document = new FakeDocument(); + const root = document.createElement("main"); + root.ownerDocument = document; + const renderer = new DomRenderer(root, wasm); + const first = renderer.render(); + + assert.equal(first.cols, 80); + assert.equal(first.rows, 24); + assert.equal(root.children.length, 24); + assert.equal(root.children[0].children.length, 80); + assert.ok(first.cells.some((cell) => cell.text !== " "), "dump rendered an empty frame"); + assert.ok(root.walk().every((node) => node.tagName !== "CANVAS"), "renderer created a canvas"); + + const firstCell = renderer.cells[0]; + const second = renderer.render(); + assert.equal(renderer.cells[0], firstCell, "stable frames should reuse DOM nodes"); + assert.equal(second.cells.length, 80 * 24); + + wasm.pardes_mouse(2, 0, 5, 3, 0); + wasm.pardes_mouse(2, 1, 5, 3, 0); + const looked = renderer.render(); + assert.match(looked.cells.map((cell) => cell.text).join(""), /build\.zig Save Del/, "right-click LOOK did not open the embedded source"); + const sourceRows = Array.from({ length: looked.rows }, (_, row) => + looked.cells.slice(row * looked.cols, (row + 1) * looked.cols)); + const codeRows = sourceRows.filter((row) => row.map((cell) => cell.text).join("").match(/^\s*\d+\s/)); + const codeColors = new Set(codeRows.flatMap((row) => row.slice(5).map((cell) => `${cell.fg}:${cell.attrs & 1}`))); + assert.ok(codeColors.size >= 3, "Tree-sitter did not apply distinct syntax styles to build.zig"); + let sawWatch = false; + for (let index = 0; index < 32; index += 1) { + const kind = wasm.pardes_effect_next(); + if (!kind) break; + if (kind === 9) sawWatch = true; + } + assert.ok(sawWatch, "JS effect drain did not receive the opened file watch request"); + + wasm.pardes_resize(41, 13); + const resized = renderer.render(); + assert.equal(resized.cols, 41); + assert.equal(resized.rows, 13); + assert.equal(root.children.length, 13); + assert.equal(root.children[0].children.length, 41); + + wasm.pardes_deinit(); + console.error("web harness ok: freestanding wasm + Tree-sitter + packed DOM renderer"); +} + +class FakeDocument { + constructor() { + this.body = new FakeElement("body", this); + } + + createElement(tagName) { + return new FakeElement(tagName, this); + } +} + +class FakeElement { + constructor(tagName, ownerDocument) { + this.tagName = tagName.toUpperCase(); + this.ownerDocument = ownerDocument; + this.children = []; + this.attributes = new Map(); + this.dataset = {}; + this.style = new FakeStyle(); + this.classList = new FakeClassList(this); + this.className = ""; + this.textContent = ""; + } + + setAttribute(name, value) { + this.attributes.set(name, String(value)); + } + + replaceChildren(...children) { + this.children = children; + } + + *walk() { + yield this; + for (const child of this.children) yield* child.walk(); + } +} + +class FakeStyle { + setProperty(name, value) { + this[name] = value; + } +} + +class FakeClassList { + constructor(element) { + this.element = element; + this.names = new Set(); + } + + toggle(name, force) { + if (force) this.names.add(name); + else this.names.delete(name); + this.element.className = [...this.names].join(" "); + } +} + +await main(); diff --git a/test/web_snapshot.mjs b/test/web_snapshot.mjs index 7c0c7462..4c50956e 100644 --- a/test/web_snapshot.mjs +++ b/test/web_snapshot.mjs @@ -1,5 +1,7 @@ #!/usr/bin/env node -// Drive the Emscripten build in a real headless Chromium using .snap scripts. +// Drive the freestanding WASM + DOM build in a real headless Chromium using +// .snap scripts. This is an end-to-end browser test: Chrome creates genuine +// touch events and the JS shell translates them into core events. // Shared commands retain test/snapshot.zig's spelling and output format: // wait | stable // snap