Add mermaid JS renderer (#12334)

* Add mermaid JS renderer

For feature parity with GitLab. Tested in files, issues, wiki, editor.
arc-green only does an inversion because the renderer seems to like to
render white backgrounds on boxes.

Ref: https://github.com/go-gitea/gitea/issues/3340
Fixes: https://github.com/go-gitea/gitea/issues/12307

* add feature entry, switch to neutral theme, remove border

* add bindFunctions support

* remove unnecessary border-radius

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
mj-v1.14.3
silverwind 4 years ago committed by GitHub
parent 46ef562a16
commit 4315e313d1
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

@ -108,45 +108,6 @@ Apart from `extra_links.tmpl` and `extra_tabs.tmpl`, there are other useful temp
- `body_outer_post.tmpl`, before the bottom `<footer>` element.
- `footer.tmpl`, right before the end of the `<body>` tag, a good place for additional Javascript.
#### Example: Mermaid.js
If you would like to add [mermaid.js](https://mermaid-js.github.io/mermaid) support to Gitea's markdown you simply add:
```html
{{if .RequireHighlightJS}}
<script src="https://unpkg.com/mermaid@8.4.5/dist/mermaid.min.js"></script>
<!-- or wherever you have placed it -->
<script>mermaid.init(".language-mermaid")</script>
{{end}}
```
to `custom/footer.tmpl`. You then can add blocks
like below to your markdown:
```mermaid
stateDiagram
[*] --> Active
state Active {
[*] --> NumLockOff
NumLockOff --> NumLockOn : EvNumLockPressed
NumLockOn --> NumLockOff : EvNumLockPressed
--
[*] --> CapsLockOff
CapsLockOff --> CapsLockOn : EvCapsLockPressed
CapsLockOn --> CapsLockOff : EvCapsLockPressed
--
[*] --> ScrollLockOff
ScrollLockOff --> ScrollLockOn : EvCapsLockPressed
ScrollLockOn --> ScrollLockOff : EvCapsLockPressed
}
```
If you want to use Mermaid.js outside of markdown, e.g. in other templates or HTML files,
you would need to remove `{{if .RequireHighlightJS}}` and `{{end}}`.
Mermaid will detect and use tags with `class="language-mermaid"`.
#### Example: PlantUML
You can add [PlantUML](https://plantuml.com/) support to Gitea's markdown by using a PlantUML server.

@ -128,6 +128,7 @@ Windows, on architectures like amd64, i386, ARM, PowerPC, and others.
- Environment variables
- Command line options
- Multi-language support ([21 languages](https://github.com/go-gitea/gitea/tree/master/options/locale))
- [Mermaid](https://mermaidjs.github.io/) Diagram support
- Mail service
- Notifications
- Registration confirmation

464
package-lock.json generated

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@ -6849,6 +7176,27 @@
"resolved": "https://registry.npmjs.org/html-comment-regex/-/html-comment-regex-1.1.2.tgz",
"integrity": "sha512-P+M65QY2JQ5Y0G9KKdlDpo0zK+/OHptU5AaBwUfAIDJZk1MYf32Frm84EcOytfJE0t5JvkAnKlmjsXDnWzCJmQ=="
},
"html-minifier": {
"version": "4.0.0",
"resolved": "https://registry.npmjs.org/html-minifier/-/html-minifier-4.0.0.tgz",
"integrity": "sha512-aoGxanpFPLg7MkIl/DDFYtb0iWz7jMFGqFhvEDZga6/4QTjneiD8I/NXL1x5aaoCp7FSIT6h/OhykDdPsbtMig==",
"requires": {
"camel-case": "^3.0.0",
"clean-css": "^4.2.1",
"commander": "^2.19.0",
"he": "^1.2.0",
"param-case": "^2.1.1",
"relateurl": "^0.2.7",
"uglify-js": "^3.5.1"
},
"dependencies": {
"uglify-js": {
"version": "3.10.0",
"resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.10.0.tgz",
"integrity": "sha512-Esj5HG5WAyrLIdYU74Z3JdG2PxdIusvj6IWHMtlyESxc7kcDz7zYlYjpnSokn1UbpV0d/QX9fan7gkCNd/9BQA=="
}
}
},
"html-tags": {
"version": "3.1.0",
"resolved": "https://registry.npmjs.org/html-tags/-/html-tags-3.1.0.tgz",
@ -8218,6 +8566,11 @@
"js-tokens": "^3.0.0 || ^4.0.0"
}
},
"lower-case": {
"version": "1.1.4",
"resolved": "https://registry.npmjs.org/lower-case/-/lower-case-1.1.4.tgz",
"integrity": "sha1-miyr0bno4K6ZOkv31YdcOcQujqw="
},
"lru-cache": {
"version": "4.1.5",
"resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-4.1.5.tgz",
@ -8653,6 +9006,31 @@
"resolved": "https://registry.npmjs.org/merge2/-/merge2-1.4.1.tgz",
"integrity": "sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg=="
},
"mermaid": {
"version": "8.6.3",
"resolved": "https://registry.npmjs.org/mermaid/-/mermaid-8.6.3.tgz",
"integrity": "sha512-oedt5nwCB+5jqPhyd45ml9bYd8WlldcMGT1KgpyKYL58gcnMKjxbHDa/g2fQXSPKopK+O3u7CmgXxXwMyW+4aA==",
"requires": {
"@braintree/sanitize-url": "^3.1.0",
"crypto-random-string": "^3.0.1",
"d3": "^5.7.0",
"dagre": "^0.8.4",
"dagre-d3": "^0.6.4",
"entity-decode": "^2.0.2",
"graphlib": "^2.1.7",
"he": "^1.2.0",
"minify": "^4.1.1",
"moment-mini": "^2.22.1",
"scope-css": "^1.2.1"
},
"dependencies": {
"@braintree/sanitize-url": {
"version": "3.1.0",
"resolved": "https://registry.npmjs.org/@braintree/sanitize-url/-/sanitize-url-3.1.0.tgz",
"integrity": "sha512-GcIY79elgB+azP74j8vqkiXz8xLFfIzbQJdlwOPisgbKT00tviJQuEghOXSMVxJ00HoYJbGswr4kcllUc4xCcg=="
}
}
},
"micromatch": {
"version": "4.0.2",
"resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.2.tgz",
@ -8742,6 +9120,20 @@
}
}
},
"minify": {
"version": "4.1.3",
"resolved": "https://registry.npmjs.org/minify/-/minify-4.1.3.tgz",
"integrity": "sha512-ykuscavxivSmVpcCzsXmsVTukWYLUUtPhHj0w2ILvHDGqC+hsuTCihBn9+PJBd58JNvWTNg9132J9nrrI2anzA==",
"requires": {
"clean-css": "^4.1.6",
"css-b64-images": "~0.2.5",
"debug": "^4.1.0",
"html-minifier": "^4.0.0",
"terser": "^4.0.0",
"try-catch": "^2.0.0",
"try-to-catch": "^1.0.2"
}
},
"minimalistic-assert": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz",
@ -8891,6 +9283,11 @@
"minimist": "^1.2.5"
}
},
"moment-mini": {
"version": "2.24.0",
"resolved": "https://registry.npmjs.org/moment-mini/-/moment-mini-2.24.0.tgz",
"integrity": "sha512-9ARkWHBs+6YJIvrIp0Ik5tyTTtP9PoV0Ssu2Ocq5y9v8+NOOpWiRshAp8c4rZVWTOe+157on/5G+zj5pwIQFEQ=="
},
"monaco-editor": {
"version": "0.20.0",
"resolved": "https://registry.npmjs.org/monaco-editor/-/monaco-editor-0.20.0.tgz",
@ -8991,6 +9388,14 @@
"resolved": "https://registry.npmjs.org/nice-try/-/nice-try-1.0.5.tgz",
"integrity": "sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ=="
},
"no-case": {
"version": "2.3.2",
"resolved": "https://registry.npmjs.org/no-case/-/no-case-2.3.2.tgz",
"integrity": "sha512-rmTZ9kz+f3rCvK2TD1Ue/oZlns7OGoIWP4fc3llxxRXlOkHKoWPPWJOfFYpITabSow43QJbRIoHQXtt10VldyQ==",
"requires": {
"lower-case": "^1.1.1"
}
},
"node-fetch": {
"version": "2.6.0",
"resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
@ -9399,6 +9804,14 @@
"readable-stream": "^2.1.5"
}
},
"param-case": {
"version": "2.1.1",
"resolved": "https://registry.npmjs.org/param-case/-/param-case-2.1.1.tgz",
"integrity": "sha1-35T9jPZTHs915r75oIWPvHK+Ikc=",
"requires": {
"no-case": "^2.2.0"
}
},
"parent-module": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/parent-module/-/parent-module-1.0.1.tgz",
@ -11227,6 +11640,11 @@
}
}
},
"relateurl": {
"version": "0.2.7",
"resolved": "https://registry.npmjs.org/relateurl/-/relateurl-0.2.7.tgz",
"integrity": "sha1-VNvzd+UUQKypCkzSdGANP/LYiKk="
},
"remark": {
"version": "12.0.0",
"resolved": "https://registry.npmjs.org/remark/-/remark-12.0.0.tgz",
@ -11638,6 +12056,11 @@
"aproba": "^1.1.1"
}
},
"rw": {
"version": "1.3.3",
"resolved": "https://registry.npmjs.org/rw/-/rw-1.3.3.tgz",
"integrity": "sha1-P4Yt+pGrdmsUiF700BEkv9oHT7Q="
},
"rxjs": {
"version": "6.6.0",
"resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.6.0.tgz",
@ -11679,6 +12102,16 @@
"ajv-keywords": "^3.4.1"
}
},
"scope-css": {
"version": "1.2.1",
"resolved": "https://registry.npmjs.org/scope-css/-/scope-css-1.2.1.tgz",
"integrity": "sha512-UjLRmyEYaDNiOS673xlVkZFlVCtckJR/dKgr434VMm7Lb+AOOqXKdAcY7PpGlJYErjXXJzKN7HWo4uRPiZZG0Q==",
"requires": {
"escaper": "^2.5.3",
"slugify": "^1.3.1",
"strip-css-comments": "^3.0.0"
}
},
"select": {
"version": "1.1.2",
"resolved": "https://registry.npmjs.org/select/-/select-1.1.2.tgz",
@ -11826,6 +12259,11 @@
}
}
},
"slugify": {
"version": "1.4.5",
"resolved": "https://registry.npmjs.org/slugify/-/slugify-1.4.5.tgz",
"integrity": "sha512-WpECLAgYaxHoEAJ8Q1Lo8HOs1ngn7LN7QjXgOLbmmfkcWvosyk4ZTXkTzKyhngK640USTZUlgoQJfED1kz5fnQ=="
},
"snapdragon": {
"version": "0.8.2",
"resolved": "https://registry.npmjs.org/snapdragon/-/snapdragon-0.8.2.tgz",
@ -12256,6 +12694,14 @@
"strip-bom-buf": "^1.0.0"
}
},
"strip-css-comments": {
"version": "3.0.0",
"resolved": "https://registry.npmjs.org/strip-css-comments/-/strip-css-comments-3.0.0.tgz",
"integrity": "sha1-elYl7/iisibPiUehElTaluE9rok=",
"requires": {
"is-regexp": "^1.0.0"
}
},
"strip-eof": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
@ -13126,6 +13572,16 @@
"integrity": "sha512-rvuRbTarPXmMb79SmzEp8aqXNKcK+y0XaB298IXueQ8I2PsrATcPBCSPyK/dDNa2iWOhKlfNnOjdAOTBU/nkFA==",
"dev": true
},
"try-catch": {
"version": "2.0.1",
"resolved": "https://registry.npmjs.org/try-catch/-/try-catch-2.0.1.tgz",
"integrity": "sha512-LsOrmObN/2WdM+y2xG+t16vhYrQsnV8wftXIcIOWZhQcBJvKGYuamJGwnU98A7Jxs2oZNkJztXlphEOoA0DWqg=="
},
"try-to-catch": {
"version": "1.1.1",
"resolved": "https://registry.npmjs.org/try-to-catch/-/try-to-catch-1.1.1.tgz",
"integrity": "sha512-ikUlS+/BcImLhNYyIgZcEmq4byc31QpC+46/6Jm5ECWkVFhf8SM2Fp/0pMVXPX6vk45SMCwrP4Taxucne8I0VA=="
},
"tsconfig-paths": {
"version": "3.9.0",
"resolved": "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-3.9.0.tgz",
@ -13197,8 +13653,7 @@
"type-fest": {
"version": "0.8.1",
"resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.8.1.tgz",
"integrity": "sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==",
"dev": true
"integrity": "sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA=="
},
"typedarray": {
"version": "0.0.6",
@ -13511,6 +13966,11 @@
"integrity": "sha512-NkghVbjJeIBaiuC+Yvr8B99L2E/THCBoO9REo1uH+ulpxJyO2S4UNKSwXgbSC7GBRjTd/+0LFYFTQsbVfLQNaw==",
"dev": true
},
"upper-case": {
"version": "1.1.3",
"resolved": "https://registry.npmjs.org/upper-case/-/upper-case-1.1.3.tgz",
"integrity": "sha1-9rRQHC7EzdJrp4vnIilh3ndiFZg="
},
"uri-js": {
"version": "4.2.2",
"resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",

@ -25,6 +25,7 @@
"jquery.are-you-sure": "1.9.0",
"less-loader": "6.2.0",
"license-webpack-plugin": "2.2.0",
"mermaid": "8.6.3",
"mini-css-extract-plugin": "0.9.0",
"monaco-editor": "0.20.0",
"monaco-editor-webpack-plugin": "1.9.0",

@ -13,6 +13,7 @@ import initClipboard from './features/clipboard.js';
import initUserHeatmap from './features/userheatmap.js';
import initServiceWorker from './features/serviceworker.js';
import initMarkdownAnchors from './markdown/anchors.js';
import renderMarkdownContent from './markdown/content.js';
import attachTribute from './features/tribute.js';
import createDropzone from './features/dropzone.js';
import initTableSort from './features/tablesort.js';
@ -46,6 +47,7 @@ function initCommentPreviewTab($form) {
}, (data) => {
const $previewPanel = $form.find(`.tab[data-tab="${$tabMenu.data('preview')}"]`);
$previewPanel.html(data);
renderMarkdownContent();
});
});
@ -75,6 +77,7 @@ function initEditPreviewTab($form) {
}, (data) => {
const $previewPanel = $form.find(`.tab[data-tab="${$tabMenu.data('preview')}"]`);
$previewPanel.html(data);
renderMarkdownContent();
});
});
}
@ -1007,6 +1010,7 @@ async function initRepository() {
}
dz.emit('submit');
dz.emit('reload');
renderMarkdownContent();
});
});
} else {
@ -1347,6 +1351,7 @@ function initWikiForm() {
wiki: true
}, (data) => {
preview.innerHTML = `<div class="markdown ui segment">${data}</div>`;
renderMarkdownContent();
});
};
if (!simplemde.isSideBySideActive()) {
@ -2484,6 +2489,7 @@ $(document).ready(async () => {
initUserHeatmap(),
initServiceWorker(),
initNotificationCount(),
renderMarkdownContent(),
]);
});

@ -0,0 +1,5 @@
import {renderMermaid} from './mermaid.js';
export default async function renderMarkdownContent() {
await renderMermaid(document.querySelectorAll('.language-mermaid'));
}

@ -0,0 +1,23 @@
import {random} from '../utils.js';
export async function renderMermaid(els) {
if (!els || !els.length) return;
const {mermaidAPI} = await import(/* webpackChunkName: "mermaid" */'mermaid');
mermaidAPI.initialize({
startOnLoad: false,
theme: 'neutral',
securityLevel: 'strict',
});
for (const el of els) {
mermaidAPI.render(`mermaid-${random(12)}`, el.textContent, (svg, bindFunctions) => {
const div = document.createElement('div');
div.classList.add('mermaid-chart');
div.innerHTML = svg;
if (typeof bindFunctions === 'function') bindFunctions(div);
el.closest('pre').replaceWith(div);
});
}
}

@ -23,3 +23,14 @@ export function isDarkTheme() {
export function uniq(arr) {
return Array.from(new Set(arr));
}
const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
// generate a random string
export function random(length) {
let str = '';
for (let i = 0; i < length; i++) {
str += chars.charAt(Math.floor(Math.random() * chars.length));
}
return str;
}

@ -494,3 +494,11 @@
user-select: none;
}
}
.mermaid-chart {
display: flex;
justify-content: center;
align-items: center;
padding: 1rem;
margin: 1rem 0;
}

@ -1898,3 +1898,7 @@ footer .container .links > * {
.repository .repo-header .ui.huge.breadcrumb.repo-title .repo-header-icon .avatar {
color: #2a2e3a;
}
.mermaid-chart {
filter: invert(84%) hue-rotate(180deg);
}

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