feat: implement custom Range component for opacity control (#9009)

Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>

packages/excalidraw/components/Range.tsx

@@ -0,0 +1,65 @@
+import React, { useEffect } from "react";
+import { getFormValue } from "../actions/actionProperties";
+import { t } from "../i18n";
+import "./Range.scss";
+
+export type RangeProps = {
+  updateData: (value: number) => void;
+  appState: any;
+  elements: any;
+  testId?: string;
+};
+
+export const Range = ({
+  updateData,
+  appState,
+  elements,
+  testId,
+}: RangeProps) => {
+  const rangeRef = React.useRef<HTMLInputElement>(null);
+  const valueRef = React.useRef<HTMLDivElement>(null);
+  const value = getFormValue(
+    elements,
+    appState,
+    (element) => element.opacity,
+    true,
+    appState.currentItemOpacity,
+  );
+  useEffect(() => {
+    if (rangeRef.current && valueRef.current) {
+      const rangeElement = rangeRef.current;
+      const valueElement = valueRef.current;
+      const inputWidth = rangeElement.offsetWidth;
+      const thumbWidth = 15; // 15 is the width of the thumb
+      const position =
+        (value / 100) * (inputWidth - thumbWidth) + thumbWidth / 2;
+      valueElement.style.left = `${position}px`;
+      rangeElement.style.background = `linear-gradient(to right, var(--color-primary) 0%, var(--color-primary) ${value}%, var(--button-bg) ${value}%, var(--button-bg) 100%)`;
+    }
+  }, [value]);
+
+  return (
+    <label className="control-label">
+      {t("labels.opacity")}
+      <div className="range-wrapper">
+        <input
+          ref={rangeRef}
+          type="range"
+          min="0"
+          max="100"
+          step="10"
+          onChange={(event) => {
+            updateData(+event.target.value);
+          }}
+          value={value}
+          className="range-input"
+          data-testid={testId}
+        />
+        <div className="value-bubble" ref={valueRef}>
+          {value !== 0 ? value : null}
+        </div>
+        <div className="zero-label">0</div>
+      </div>
+    </label>
+  );
+};