DatoCMS Character Counter Plugin

\n \n \n\n`;\n\nexport default async function (req: Request): Promise {\n return new Response(html, {\n headers: {\n \"Content-Type\": \"text/html\",\n },\n });\n}\n","label",[144],"9d9586e8-c5ff-11f0-8d60-42dde27851f2","client.tsx","019aa0e8-e924-717e-ae85-8e9fe70435c0",["D",1763636209930],"script","/** @jsxImportSource https://esm.sh/react */\nimport { StrictMode } from \"https://esm.sh/react\";\nimport { createRoot } from \"https://esm.sh/react-dom/client\";\nimport {\n connect,\n type FieldType,\n} from \"https://esm.sh/datocms-plugin-sdk\";\nimport FieldExtension from \"./FieldExtension.tsx\";\n\nconst FIELDS_TYPES: FieldType[] = [\"string\", \"text\", \"structured_text\"];\n\nconst container = document.getElementById(\"app\");\nconst root = createRoot(container!);\n\nfunction render(component: React.ReactNode): void {\n root.render({component});\n}\n\nconnect({\n overrideFieldExtensions(field) {\n if (\n !FIELDS_TYPES.includes(field.attributes.field_type as FieldType)\n ) {\n return;\n }\n\n if (!(\"length\" in field.attributes.validators)) {\n return;\n }\n\n if (\n field.attributes.appearance.addons.find(\n (addon) => addon.field_extension === \"character-count\"\n )\n ) {\n return;\n }\n\n return {\n addons: [\n {\n id: \"character-count\",\n initialHeight: 0,\n },\n ],\n };\n },\n manualFieldExtensions() {\n return [\n {\n id: \"character-count\",\n name: \"Character counter\",\n type: \"addon\",\n fieldTypes: FIELDS_TYPES,\n configurable: false,\n initialHeight: 0,\n },\n ];\n },\n renderFieldExtension(_id, ctx) {\n render();\n },\n});\n",[154],"9d958332-c5ff-11f0-8d60-42dde27851f2","README.md","019aa0e8-e924-717e-ae85-88371b93aba0",["D",1763636209930],"# DatoCMS Character Counter Plugin\n\nA DatoCMS plugin that automatically shows a character counter on fields that are configured to have validations on length.\n\n## Features\n\n- **Automatic activation**: The plugin automatically attaches to fields with length validators\n- **Manual installation**: Can also be manually added to fields\n- **Multiple field types**: Supports string, text, and structured_text field types\n- **Smart counting**: For structured text, counts only the actual text content (not markup)\n\n## Supported Field Types\n\n- Single-line string\n- Multiple-paragraph text\n- Structured text\n\n## How it works\n\nThe plugin uses the `overrideFieldExtensions` hook to automatically add a character counter addon to fields that:\n1. Are one of the supported field types (string, text, or structured_text)\n2. Have length validation configured\n3. Don't already have the character counter addon installed\n\nThe counter displays the current character count in a small, unobtrusive format below the field.\n\n## Implementation\n\nBased on the official [DatoCMS character-counter plugin](https://github.com/datocms/plugins/tree/master/character-counter).\n",[161],"9d9573c4-c5ff-11f0-8d60-42dde27851f2","FieldExtension.tsx","019aa0e8-e924-717e-ae85-85c6dd317989",["D",1763636209930],"/** @jsxImportSource https://esm.sh/react */\nimport type { RenderFieldExtensionCtx } from \"https://esm.sh/datocms-plugin-sdk\";\nimport { Canvas } from \"https://esm.sh/datocms-react-ui\";\nimport { get } from \"https://esm.sh/lodash-es\";\nimport {\n type Node,\n isText,\n} from \"https://esm.sh/datocms-structured-text-slate-utils\";\n\ntype Props = {\n ctx: RenderFieldExtensionCtx;\n};\n\nfunction visit(\n nodes: Node[],\n test: (x: Node) => x is X,\n callback: (node: X) => void\n): void {\n nodes.forEach((node) => {\n if (test(node)) {\n callback(node);\n }\n\n if (\"children\" in node) {\n visit(node.children as any as Node[], test, callback);\n }\n });\n}\n\nfunction getCharCount(value: unknown, fieldType: string) {\n if ([\"string\", \"text\"].includes(fieldType)) {\n return (value as null | string)?.length || 0;\n }\n\n if (fieldType === \"structured_text\") {\n if (!value) {\n return 0;\n }\n\n let counter = 0;\n\n visit(value as Node[], isText, (textNode) => {\n counter += textNode.text.length;\n });\n\n return counter;\n }\n\n throw new Error(\"This should not happen\");\n}\n\nexport default function FieldExtension({ ctx }: Props) {\n const charCount = getCharCount(\n get(ctx.formValues, ctx.fieldPath),\n ctx.field.attributes.field_type\n );\n\n const wrapperStyle = {\n fontSize: \"var(--font-size-s)\",\n color: \"var(--light-body-color)\",\n };\n\n return (\n

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