feat: add textResolver

Signed-off-by: Alexander Lozovsky <[email protected]>

README.md

@@ -104,9 +104,7 @@ const { text } = blok;
 ## Advanced usage
 
 Sensible default resolvers for marks and nodes are provided out-of-the-box. You only have to provide custom ones if you want to
-override the default behavior.
-
-Use `resolver` to enable and control the rendering of embedded components, and `schema` to control how you want the nodes and marks be rendered:
+override the default behavior:
 
 ```js
 <RichTextRenderer
@@ -144,10 +142,20 @@ Use `resolver` to enable and control the rendering of embedded components, and `
       props: { blok },
     };
   }}
+  textResolver={(text) => {
+    const currentYear = new Date().getFullYear().toString();
+    return {
+      content: text.replaceAll("{currentYear}", currentYear),
+    };
+  }}
   {...storyblokEditable(blok)}
 />
 ```
 
+- `schema` -  controls how you want the nodes and marks be rendered
+- `resolver` - enables and controls the rendering of embedded components
+- `textResolver` -  controls the rendering of the plain text. Useful if you need some text preprocessing (translation, sanitization, etc.)
+
 ### Content via prop
 
 By default, content in `nodes` is handled automatically and passed via slots keeping configuration as follows:

demo/src/pages/index.astro

@@ -397,6 +397,15 @@ const richTextFromStoryblok: RichTextType = {
         },
       ],
     },
+    {
+      type: "paragraph",
+      content: [
+        {
+          text: "© {currentYear} Company X. All Rights Reserved",
+          type: "text",
+        },
+      ],
+    },
   ],
 };
 

demo/src/storyblok/RichText.astro

@@ -101,5 +101,11 @@ const { text } = blok;
       props: { blok },
     };
   }}
+  textResolver={(text) => {
+    const currentYear = new Date().getFullYear().toString();
+    return {
+      content: text.replaceAll("{currentYear}", currentYear),
+    };
+  }}
   {...storyblokEditable(blok)}
 />

lib/RichTextRenderer.astro

@@ -17,11 +17,28 @@ export type Props = {
    ```
    */
   resolver: Options["resolver"];
+  /**
+   Function to control the rendering of the plain text. Useful for text preprocessing, f.e.
+   ```
+    // replaces {currentYear} substring with the actual value in all texts
+    textResolver={(text) => {
+      const currentYear = new Date().getFullYear().toString();
+      return {
+        content: text.replaceAll("{currentYear}", currentYear),
+      };
+    }}
+   ```
+   */
+  textResolver: Options["textResolver"];
 };
 
-const { content, schema, resolver, ...props } = Astro.props;
+const { content, schema, resolver, textResolver, ...props } = Astro.props;
 
-const nodes = resolveRichTextToNodes(content, { schema, resolver });
+const nodes = resolveRichTextToNodes(content, {
+  schema,
+  resolver,
+  textResolver,
+});
 ---
 
 <div {...props}>

lib/src/types.ts

@@ -45,6 +45,7 @@ export type Schema = {
 export type Options = {
   schema?: Schema;
   resolver?: (blok: SbBlok) => ComponentNode;
+  textResolver?: (str: string) => ComponentNode;
 };
 
 export type Anchor = {

lib/src/utils/resolveRichTextToNodes.spec.ts

@@ -113,6 +113,83 @@ describe("resolveNode", () => {
     });
   });
 
+  it("text with textResolver", () => {
+    const node: SchemaNode = {
+      text: "Hello {name}",
+      type: "text",
+    };
+
+    const textResolver = (text: string) => {
+      return {
+        content: text.replace("{name}", "World"),
+      };
+    };
+
+    // default
+    expect(
+      resolveNode(node, {
+        textResolver,
+      })
+    ).toStrictEqual({
+      content: "Hello World",
+    });
+
+    // with marks
+    expect(
+      resolveNode(
+        {
+          ...node,
+          marks: [{ type: "bold" }],
+        },
+        {
+          textResolver,
+        }
+      )
+    ).toStrictEqual({
+      content: [
+        {
+          component: "b",
+          content: [
+            {
+              content: "Hello World",
+            },
+          ],
+        },
+      ],
+    });
+
+    // with schema override
+    expect(
+      resolveNode(node, {
+        schema: {
+          nodes: {
+            text: () => ({
+              component: "p",
+              props: { class: "class-1" },
+            }),
+          },
+        },
+        textResolver: (text) => ({
+          content: text.replace("{name}", "World"),
+          component: "span",
+          props: { class: "class-2" },
+        }),
+      })
+    ).toStrictEqual({
+      component: "p",
+      props: {
+        class: "class-1",
+      },
+      content: [
+        {
+          component: "span",
+          props: { class: "class-2" },
+          content: "Hello World",
+        },
+      ],
+    });
+  });
+
   it("paragraph", () => {
     const node: SchemaNode = {
       type: "paragraph",

lib/src/utils/resolveRichTextToNodes.ts

@@ -165,7 +165,7 @@ export const resolveNode = (
   node: SchemaNode,
   options: Options = {}
 ): ComponentNode => {
-  const { schema } = options;
+  const { schema, textResolver } = options;
 
   if (node.type === "heading") {
     const resolverFn = schema?.nodes?.[node.type];
@@ -286,7 +286,13 @@ export const resolveNode = (
     const { text, marks } = node;
 
     if (marks) {
-      let marked: ComponentNode[] = [{ content: text }];
+      let marked: ComponentNode[] = [
+        {
+          content: text,
+          ...textResolver?.(text),
+        },
+      ];
+
       [...marks].reverse().forEach((mark) => {
         marked = [resolveMark(marked, mark, schema)];
       });
@@ -297,9 +303,22 @@ export const resolveNode = (
       };
     }
 
+    const resolverResult = resolverFn?.(node);
+    const textResolverResult = textResolver?.(text);
+
+    if (resolverResult && textResolverResult) {
+      return {
+        component: resolverResult.component,
+        props: resolverResult.props,
+        content: [textResolverResult],
+      };
+    }
+
     return {
       content: text,
       ...resolverFn?.(node),
+      ...textResolverResult,
+      ...resolverResult,
     };
   }