diff --git a/website/presentation/default.nix b/website/presentation/default.nix index 9c78c0d1..7410f3ca 100644 --- a/website/presentation/default.nix +++ b/website/presentation/default.nix @@ -5,11 +5,13 @@ let types ; templates = import ./templates.nix { inherit lib; }; + # TODO: optionally run the whole thing through the validator + # https://github.com/validator/validator render-html = document: let eval = lib.evalModules { class = "DOM"; - modules = [ document (import ./dom.nix { inherit lib; }).document ]; + modules = [ document (import ./dom.nix) ]; }; in toString eval.config; @@ -53,13 +55,11 @@ in meta.description = page.description; link.canonical = lib.head page.locations; }; - body.content = '' - ${config.menus.main.outputs.html page} - -

${page.title}

- - ${builtins.readFile (commonmark page.name page.body)} - ''; + body.content = [ + (config.menus.main.outputs.html page) + { section.heading.content = page.title; } + (builtins.readFile (commonmark page.name page.body)) + ]; }; }); article = lib.mkDefault (config: page: render-html { @@ -70,13 +70,11 @@ in meta.authors = if lib.isList page.author then page.author else [ page.author ]; link.canonical = lib.head page.locations; }; - body.content = '' - ${config.menus.main.outputs.html page} - -

${page.title}

- - ${builtins.readFile (commonmark page.name page.body)} - ''; + body.content = [ + (config.menus.main.outputs.html page) + { section.heading.content = page.title; } + (builtins.readFile (commonmark page.name page.body)) + ]; }; }); }; diff --git a/website/presentation/dom.nix b/website/presentation/dom.nix index 7e52a819..0f583b7d 100644 --- a/website/presentation/dom.nix +++ b/website/presentation/dom.nix @@ -5,8 +5,9 @@ Inspired by https://github.com/knupfer/type-of-html by @knupfer (BSD-3-Clause) Similar work from the OCaml ecosystem: https://github.com/ocsigen/tyxml */ -{ lib, ... }: +{ config, lib, ... }: let + cfg = config; inherit (lib) mkOption types; # https://html.spec.whatwg.org/multipage/dom.html#content-models @@ -25,8 +26,16 @@ let "scripting" # https://html.spec.whatwg.org/multipage/dom.html#script-supporting-elements ]; + get-section-depth = content: with lib; foldl' + (acc: elem: + if isAttrs elem + then max acc (lib.head (attrValues elem)).section-depth + else acc # TODO: parse with e.g. https://github.com/remarkjs/remark to avoid raw strings + ) 0 + content; + # base type for all DOM elements - element = { name, config, ... }: { + element = { ... }: { # TODO: add fields for upstream documentation references # TODO: programmatically generate documentation options = with lib; { @@ -40,6 +49,15 @@ let }; }; + # TODO: rename to something about sectioning + content-element = { ... }: { + options.section-depth = mkOption { + type = types.ints.unsigned; + default = 0; + internal = true; + }; + }; + # options with types for all the defined DOM elements element-types = lib.mapAttrs (name: value: mkOption { type = types.submodule value; }) @@ -53,7 +71,7 @@ let (category: (mapAttrs (_: e: mkOption { type = types.submodule e; }) # HACK: don't evaluate the submodule types, just grab the config directly - (filterAttrs (_: e: elem category (e { name = "dummy"; }).config.categories) elements)) + (filterAttrs (_: e: elem category (e { name = "dummy"; config = { }; }).config.categories) elements)) ); global-attrs = lib.mapAttrs (name: value: mkOption value) { @@ -140,6 +158,7 @@ let attrs) ); in + if attrs == null then throw "wat" else optionalString (stringLength result > 0) " " + result ; @@ -310,7 +329,7 @@ let link = { name, ... }: { imports = [ element ]; - options = mkAttrs { + options = global-attrs // { # TODO: more attributes # https://html.spec.whatwg.org/multipage/semantics.html#the-link-element:concept-element-attributes inherit (attrs) href; @@ -349,21 +368,104 @@ let config.__toString = self: ""; }; - body = { name, ... }: { - imports = [ element ]; + body = { config, name, ... }: { + imports = [ element content-element ]; options = { attrs = mkAttrs { }; content = mkOption { type = with types; # HACK: bail out for now # TODO: find a reasonable cut-off for where to place raw content - either str (listOf (attrTag categories.flow)); + listOf (either str (attrTag categories.flow)); + default = [ ]; }; }; + config.section-depth = get-section-depth config.content; config.categories = [ ]; config.__toString = self: with lib; - if isList self.content then join "\n" (toString self.content) else self.content; + print-element name self.attrs ( + join "\n" (map + (e: + if isAttrs e + then toString (lib.head (attrValues e)) + else e + ) + self.content) + ); + }; + section = { config, name, ... }: { + imports = [ element content-element ]; + options = { + # setting to an attribute set will wrap the section in
+ attrs = mkOption { + type = with types; nullOr (submodule { options = global-attrs; }); + default = null; + }; + # TODO: make `pre-`/`post-heading` wrap the heading in `
` if non-empty + # https://html.spec.whatwg.org/multipage/sections.html#the-hgroup-element + pre-heading = mkOption { + type = with types; listOf (attrTag ({ inherit p; } // categories.scripting)); + default = [ ]; + }; + heading = mkOption { + type = with types; submodule ({ ... }: { + imports = [ element ]; + options = { + attrs = mkAttrs { }; + content = mkOption { + type = with types; either str (listOf (attrTag categories.phrasing)); + }; + }; + }); + }; + post-heading = mkOption { + type = with types; + listOf (attrTag ({ inherit p; } // categories.scripting)); + default = [ ]; + }; + # https://html.spec.whatwg.org/multipage/sections.html#headings-and-outlines + content = mkOption { + type = with types; listOf (either str (attrTag categories.flow)); + default = [ ]; + }; + }; + config.section-depth = get-section-depth config.content + 1; + options.heading-level = mkOption { + # XXX: this will proudly fail if the invariant is violated, + # but the error message will be inscrutable + type = with types; ints.between 1 6; + internal = true; + }; + config.heading-level = cfg.section-depth - config.section-depth + 1; + config.categories = [ "flow" "sectioning" "palpable" ]; + config.__toString = self: with lib; + let + n = toString config.heading-level; + content = + "${self.heading.content}" + join "\n" (map + (e: + if isAttrs e + then toString (lib.head (attrValues e)) + else e + ) + self.content); + in + if !isNull self.attrs + then print-element name self.attrs content + else content; }; }; in -elements +{ + imports = [ element content-element ]; + options = { + inherit (element-types) html; + }; + + config.section-depth = config.html.body.section-depth; + config.categories = [ ]; + config.__toString = self: '' + + ${self.html} + ''; +}