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malta-slides/node_modules/@marp-team/marpit/lib/marpit.js

291 lines
11 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _markdownIt = _interopRequireDefault(require("markdown-it"));
var _element = require("./element");
var _wrap_array = require("./helpers/wrap_array");
var _background_image = _interopRequireDefault(require("./markdown/background_image"));
var _collect = _interopRequireDefault(require("./markdown/collect"));
var _comment = _interopRequireDefault(require("./markdown/comment"));
var _container = _interopRequireDefault(require("./markdown/container"));
var _apply = _interopRequireDefault(require("./markdown/directives/apply"));
var _parse = _interopRequireDefault(require("./markdown/directives/parse"));
var _fragment = _interopRequireDefault(require("./markdown/fragment"));
var _header_and_footer = _interopRequireDefault(require("./markdown/header_and_footer"));
var _heading_divider = _interopRequireDefault(require("./markdown/heading_divider"));
var _image = _interopRequireDefault(require("./markdown/image"));
var _inline_svg = _interopRequireDefault(require("./markdown/inline_svg"));
var _slide = _interopRequireWildcard(require("./markdown/slide"));
var _slide_container = _interopRequireDefault(require("./markdown/slide_container"));
var _assign = _interopRequireDefault(require("./markdown/style/assign"));
var _parse2 = _interopRequireDefault(require("./markdown/style/parse"));
var _sweep = _interopRequireDefault(require("./markdown/sweep"));
var _theme_set = _interopRequireDefault(require("./theme_set"));
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
const defaultOptions = {
anchor: true,
container: _element.marpitContainer,
cssContainerQuery: false,
cssNesting: true,
headingDivider: false,
lang: undefined,
looseYAML: false,
markdown: undefined,
printable: true,
slideContainer: false,
inlineSVG: false
};
const defaultInlineSVGOptions = {
enabled: true,
backdropSelector: true
};
/**
* Parse Marpit Markdown and render to the slide HTML/CSS.
*/
class Marpit {
#markdown = undefined;
/**
* @typedef {Object} Marpit~InlineSVGOptions
* @property {boolean} [enabled=true] Whether inline SVG mode is enabled.
* @property {boolean} [backdropSelector=true] Whether `::backdrop` selector
* support is enabled. If enabled, the `::backdrop` CSS selector will
* match to the SVG container element.
*/
/**
* Convert slide page index into anchor string.
*
* @callback Marpit~AnchorCallback
* @param {number} index Slide page index, beginning from zero.
* @returns {string} The text of anchor for id attribute, without prefix `#`.
*/
/**
* Create a Marpit instance.
*
* @param {Object} [opts]
* @param {boolean|Marpit~AnchorCallback} [opts.anchor=true] Set the page
* number as anchor of each slides (`id` attribute). You can customize the
* anchor text by defining a custom callback function.
* @param {false|Element|Element[]}
* [opts.container={@link module:element.marpitContainer}] Container
* element(s) wrapping whole slide deck.
* @param {boolean|string|string[]} [opts.cssContainerQuery=false] Set whether
* to enable CSS container query (`@container`). By setting the string or
* string array, you can specify the container name(s) for the CSS
* container.
* @param {boolean} [opts.cssNesting=false] Enable CSS nesting support. If
* enabled, Marpit will try to make flatten the CSS with nested rules
* before rendering, to make it compatible with Marpit preprocessings.
* @param {false|number|number[]} [opts.headingDivider=false] Start a new
* slide page at before of headings. it would apply to headings whose
* larger than or equal to the specified level if a number is given, or
* ONLY specified levels if a number array.
* @param {string} [opts.lang] Set the default `lang` attribute of each slide.
* It can override by `lang` global directive in the Markdown.
* @param {boolean} [opts.looseYAML=false] Allow loose YAML parsing in
* built-in directives, and custom directives defined in current instance.
* @param {MarkdownIt|string|Object|Array} [opts.markdown] An instance of
* markdown-it or its constructor option(s) for wrapping. Marpit will
* create its instance based on CommonMark when omitted.
* @param {boolean} [opts.printable=true] Make style printable to PDF.
* @param {false|Element|Element[]} [opts.slideContainer] Container element(s)
* wrapping each slide sections.
* @param {boolean|Marpit~InlineSVGOptions} [opts.inlineSVG=false] Wrap each
* slide sections by inline SVG. _(Experimental)_
*/
constructor(opts = {}) {
/**
* The current options for this instance.
*
* This property is read-only and marked as immutable. You cannot change the
* value of options after creating instance.
*
* @member {Object} options
* @memberOf Marpit#
* @readonly
*/
Object.defineProperty(this, 'options', {
enumerable: true,
value: Object.freeze({
...defaultOptions,
...opts
})
});
/**
* Definitions of the custom directive.
*
* It has the assignable `global` and `local` object. They have consisted of
* the directive name as a key, and parser function as a value. The parser
* should return the validated object for updating meta of markdown-it
* token.
*
* @member {Object} customDirectives
* @memberOf Marpit#
* @readonly
*/
Object.defineProperty(this, 'customDirectives', {
value: Object.seal({
global: Object.create(null),
local: Object.create(null)
})
});
/**
* @type {ThemeSet}
*/
this.themeSet = new _theme_set.default({
cssNesting: this.options.cssNesting
});
this.applyMarkdownItPlugins((() => {
// Use CommonMark based instance by default
if (!this.options.markdown) return new _markdownIt.default('commonmark');
// Detect markdown-it features
if (typeof this.options.markdown === 'object' && typeof this.options.markdown.parse === 'function' && typeof this.options.markdown.renderer === 'object') return this.options.markdown;
// Create instance with passed argument(s)
return new _markdownIt.default(...(0, _wrap_array.wrapArray)(this.options.markdown));
})());
}
/**
* @type {MarkdownIt}
*/
get markdown() {
return this.#markdown;
}
set markdown(md) {
if (this.#markdown && this.#markdown.marpit) delete this.#markdown.marpit;
this.#markdown = md;
if (md) {
Object.defineProperty(md, 'marpit', {
configurable: true,
value: this
});
}
}
/** @private */
applyMarkdownItPlugins(md) {
this.markdown = md;
const slideAnchorCallback = (...args) => {
const {
anchor
} = this.options;
if (typeof anchor === 'function') return anchor(...args);
if (anchor) return (0, _slide.defaultAnchorCallback)(...args);
return undefined;
};
md.use(_comment.default).use(_parse2.default).use(_slide.default, {
anchor: slideAnchorCallback
}).use(_parse.default).use(_apply.default).use(_header_and_footer.default).use(_heading_divider.default).use(_slide_container.default).use(_container.default).use(_inline_svg.default).use(_image.default).use(_background_image.default).use(_sweep.default).use(_assign.default).use(_fragment.default).use(_collect.default);
}
/**
* @typedef {Object} Marpit~RenderResult
* @property {string|string[]} html Rendered HTML.
* @property {string} css Rendered CSS.
* @property {string[][]} comments Parsed HTML comments per slide pages,
* excepted YAML for directives. It would be useful for presenter notes.
*/
/**
* Render Markdown into HTML and CSS string.
*
* @param {string} markdown A Markdown string.
* @param {Object} [env={}] Environment object for passing to markdown-it.
* @param {boolean} [env.htmlAsArray=false] Output rendered HTML as array per
* slide.
* @returns {Marpit~RenderResult} An object of rendering result.
*/
render(markdown, env = {}) {
return {
html: this.renderMarkdown(markdown, env),
css: this.renderStyle(this.lastGlobalDirectives.theme),
comments: this.lastComments
};
}
/**
* Render Markdown by using `markdownIt#render`.
*
* This method is for internal. You can override this method if you have to
* render with customized way.
*
* @private
* @param {string} markdown A Markdown string.
* @param {Object} [env] Environment object for passing to markdown-it.
* @param {boolean} [env.htmlAsArray=false] Output rendered HTML as array per
* slide.
* @returns {string|string[]} The result string(s) of rendering Markdown.
*/
renderMarkdown(markdown, env = {}) {
const tokens = this.markdown.parse(markdown, env);
if (env.htmlAsArray) {
return this.lastSlideTokens.map(slideTokens => this.markdown.renderer.render(slideTokens, this.markdown.options, env));
}
return this.markdown.renderer.render(tokens, this.markdown.options, env);
}
/**
* Render style by using `themeSet#pack`.
*
* This method is for internal.
*
* @private
* @param {string|undefined} theme Theme name.
* @returns {string} The result string of rendering style.
*/
renderStyle(theme) {
return this.themeSet.pack(theme, this.themeSetPackOptions());
}
/** @private */
themeSetPackOptions() {
return {
after: this.lastStyles ? this.lastStyles.join('\n') : undefined,
containers: [...(0, _wrap_array.wrapArray)(this.options.container), ...(0, _wrap_array.wrapArray)(this.options.slideContainer)],
containerQuery: this.options.cssContainerQuery,
inlineSVG: this.inlineSVGOptions,
printable: this.options.printable
};
}
/**
* @private
* @returns {Marpit~InlineSVGOptions} Options for inline SVG.
*/
get inlineSVGOptions() {
if (typeof this.options.inlineSVG === 'object') {
return {
...defaultInlineSVGOptions,
...this.options.inlineSVG
};
}
return {
...defaultInlineSVGOptions,
enabled: !!this.options.inlineSVG
};
}
/**
* Load the specified markdown-it plugin with given parameters.
*
* @param {Function} plugin markdown-it plugin.
* @param {...*} params Params to pass into plugin.
* @returns {Marpit} The called {@link Marpit} instance for chainable.
*/
use(plugin, ...params) {
plugin.call(this.markdown, this.markdown, ...params);
return this;
}
}
var _default = exports.default = Marpit;