plane/space/components/editor/toolbar.tsx

import React, { useEffect, useState, useCallback } from "react";
// editor
import { EditorMenuItemNames, EditorRefApi } from "@plane/lite-text-editor";
// ui
import { Button, Tooltip } from "@plane/ui";
// constants
import { TOOLBAR_ITEMS } from "@/constants/editor";
// helpers
import { cn } from "@/helpers/common.helper";

type Props = {
  executeCommand: (commandName: EditorMenuItemNames) => void;
  handleSubmit: (event: React.MouseEvent<HTMLButtonElement, MouseEvent>) => void;
  isCommentEmpty: boolean;
  isSubmitting: boolean;
  showSubmitButton: boolean;
  editorRef: React.MutableRefObject<EditorRefApi | null> | null;
};

const toolbarItems = TOOLBAR_ITEMS.lite;

export const IssueCommentToolbar: React.FC<Props> = (props) => {
  const { executeCommand, handleSubmit, isCommentEmpty, editorRef, isSubmitting, showSubmitButton } = props;
  // states
  const [activeStates, setActiveStates] = useState<Record<string, boolean>>({});

  // Function to update active states
  const updateActiveStates = useCallback(() => {
    if (editorRef?.current) {
      const newActiveStates: Record<string, boolean> = {};
      Object.values(toolbarItems)
        .flat()
        .forEach((item) => {
          // Assert that editorRef.current is not null
          newActiveStates[item.key] = (editorRef.current as EditorRefApi).isMenuItemActive(item.key);
        });
      setActiveStates(newActiveStates);
    }
  }, [editorRef]);

  // useEffect to call updateActiveStates when isActive prop changes
  useEffect(() => {
    if (!editorRef?.current) return;
    const unsubscribe = editorRef.current.onStateChange(updateActiveStates);
    updateActiveStates();
    return () => unsubscribe();
  }, [editorRef, updateActiveStates]);

  return (
    <div className="flex h-9 w-full items-stretch gap-1.5 bg-custom-background-90 overflow-x-scroll">
      <div className="flex w-full items-stretch justify-between gap-2 rounded border-[0.5px] border-custom-border-200 p-1">
        <div className="flex items-stretch">
          {Object.keys(toolbarItems).map((key, index) => (
            <div
              key={key}
              className={cn("flex items-stretch gap-0.5 border-r border-custom-border-200 px-2.5", {
                "pl-0": index === 0,
                "pr-0": index === Object.keys(toolbarItems).length - 1,
              })}
            >
              {toolbarItems[key].map((item) => (
                <Tooltip
                  key={item.key}
                  tooltipContent={
                    <p className="flex flex-col gap-1 text-center text-xs">
                      <span className="font-medium">{item.name}</span>
                      {item.shortcut && <kbd className="text-custom-text-400">{item.shortcut.join(" + ")}</kbd>}
                    </p>
                  }
                >
                  <button
                    type="button"
                    onClick={() => executeCommand(item.key)}
                    className={cn(
                      "grid place-items-center aspect-square rounded-sm p-0.5 text-custom-text-400 hover:bg-custom-background-80",
                      {
                        "bg-custom-background-80 text-custom-text-100": activeStates[item.key],
                      }
                    )}
                  >
                    <item.icon
                      className={cn("h-3.5 w-3.5", {
                        "text-custom-text-100": activeStates[item.key],
                      })}
                      strokeWidth={2.5}
                    />
                  </button>
                </Tooltip>
              ))}
            </div>
          ))}
        </div>
        {showSubmitButton && (
          <div className="sticky right-1">
            <Button
              type="submit"
              variant="primary"
              className="px-2.5 py-1.5 text-xs"
              onClick={handleSubmit}
              disabled={isCommentEmpty}
              loading={isSubmitting}
            >
              Comment
            </Button>
          </div>
        )}
      </div>
    </div>
  );
};