From 745308c1e183c92ec2980ee5bcd15c2fa4511cb2 Mon Sep 17 00:00:00 2001
From: Kevin Yosua <kevinyl18@gmail.com>
Date: Wed, 17 May 2023 17:03:47 +0700
Subject: [PATCH] Feature Paste Text to Tags

---
 src/index.tsx                  | 35 ++++++++++++++++++++++++++
 stories/tags-input.stories.tsx | 45 ++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+)

diff --git a/src/index.tsx b/src/index.tsx
index b535239..5660b5f 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -84,6 +84,16 @@ export const TagsInput = ({
     }
   };
 
+  const onPaste = (event: React.ClipboardEvent<HTMLInputElement>) => {
+    const pasteText = event.clipboardData.getData("text");
+    if (pasteText.length < 1) return;
+
+    const pasteTags = splitPaste({ text: pasteText, tags, separators })
+    setTags([...tags, ...pasteTags])
+    event.preventDefault();
+  }
+
+
   const onTagRemove = text => {
     setTags(tags.filter(tag => tag !== text));
     onRemoved && onRemoved(text);
@@ -110,7 +120,32 @@ export const TagsInput = ({
         onBlur={onBlur}
         disabled={disabled}
         onKeyUp={onKeyUp}
+        onPaste={onPaste}
       />
     </div>
   );
 };
+
+type splitPasteParamType = {
+  tags: Array<string>;
+  text: string;
+  separators: Array<string>;
+}
+
+function splitPaste({ tags, text, separators }: splitPasteParamType) {
+  let dirtyTags = separators.reduce((accumulator, separator) => {
+    const splitText = text.split(separator);
+    if (splitText.length > accumulator.length) accumulator = splitText;
+    return accumulator;
+  }, []);
+  const cleanTags = dirtyTags.map(tag => tag.trim());
+
+  const cleanDuplicateTags = cleanTags.reduce((accumulator, tag) => {
+    if (!tags.includes(tag)) {
+      accumulator.push(tag)
+    }
+    return accumulator;
+  }, [])
+
+  return cleanDuplicateTags;
+}
diff --git a/stories/tags-input.stories.tsx b/stories/tags-input.stories.tsx
index 4a72a60..700875c 100644
--- a/stories/tags-input.stories.tsx
+++ b/stories/tags-input.stories.tsx
@@ -58,3 +58,48 @@ export const Page = () => {
     </div>
   );
 };
+
+export const Paste = () => {
+  const [selected, setSelected] = useState(["papaya"]);
+  const [disabled, setDisabled] = useState(false);
+  const [isEditOnRemove, setisEditOnRemove] = useState(false);
+
+  return (
+    <div style={{ marginBottom: "32px" }}>
+      <h1>Add Fruits</h1>
+      <pre>{JSON.stringify(selected)}</pre>
+      <TagsInput
+        value={selected}
+        onChange={setSelected}
+        name="fruits"
+        placeHolder="press , or ; to add fruits"
+        disabled={disabled}
+        isEditOnRemove={isEditOnRemove}
+        separators={[',', ';']}
+      />
+      <div style={{ marginTop: "2rem" }}>
+        <button
+          onClick={() => setDisabled(!disabled)}
+          style={{ marginRight: "2rem" }}
+        >
+          Toggle Disable
+        </button>
+        <pre>Disable: {JSON.stringify(disabled)}</pre>
+      </div>
+      <div>
+        <button
+          onClick={() => setisEditOnRemove(!isEditOnRemove)}
+          style={{ marginRight: "2rem" }}
+        >
+          Toggle Keep Words on Backspace
+        </button>
+        <pre>Keep Words on Backspace: {JSON.stringify(isEditOnRemove)}</pre>
+      </div>
+      <div>
+        <button onClick={() => setSelected(["tangerine"])}>
+          override value
+        </button>
+      </div>
+    </div>
+  );
+}