react-icons/fi#FiChevronLeft JavaScript Examples

export function NavButton({type, bg, color, ...props}) {
  const isPrev = type === 'prev'
  // eslint-disable-next-line no-shadow
  const Icon = isPrev ? FiChevronLeft : FiChevronRight
  return (
    <Absolute
      top="50%"
      left={isPrev && 0}
      right={isPrev || 0}
      width={rem(280)}
      zIndex={0}
      css={{
        transform: 'translate(0, -50%)',
        overflow: 'hidden',
        height: rem(600),
      }}
      {...props}
    >
      <div>
        <Icon
          fontSize={rem(20)}
          color={color}
          style={{
            position: 'absolute',
            top: '50%',
            left: '50%',
            transform: `translate(-50%, -50%) translateX(${
              isPrev ? rem(80) : rem(-80)
            })`,
          }}
        />
        <style jsx>{`
          div {
            border-radius: 50%;
            cursor: pointer;
            height: 100%;
            width: ${rem(560)};
            position: relative;
            transform: translateX(${isPrev ? '-50%' : ''});
            transition: all 0.5s ease-out;
            transition-property: background;
            will-change: background;
          }
          div:hover {
            background: ${bg};
          }
        `}</style>
      </div>
    </Absolute>
  )
}

Hero = ({ projects }) => {
  const images = projects.map(item => {
    const {
      data: {
        image: { localFiles },
      },
    } = item
    const image = localFiles[0].childImageSharp.fluid
    return image
  })
  const [index, setIndex] = React.useState(0)
  React.useEffect(() => {
    const lastIndex = images.length - 1
    if (index < 0) {
      setIndex(lastIndex)
    }
    if (index > lastIndex) {
      setIndex(0)
    }
  }, [index, images])
  return (
    <Wrapper>
      <Background image={images[index]}>
        <article>
          <h3>If you can dream it, we can create it</h3>
          <h1>let your home be inique and stylish</h1>
          <Link to="/projects">Projects</Link>
        </article>

        <button className="prev-btn" onClick={() => setIndex(index - 1)}>
          <FiChevronLeft />
        </button>
        <button className="next-btn" onClick={() => setIndex(index + 1)}>
          <FiChevronRight />
        </button>
        <div className="dots">
          {images.map((_, btnIndex) => {
            return (
              <span
                key={btnIndex}
                onClick={() => setIndex(btnIndex)}
                className={index === btnIndex ? "active" : undefined}
              ></span>
            )
          })}
        </div>
      </Background>
    </Wrapper>
  )
}

Slider = () => {
  const {
    allAirtable: { nodes: customers },
  } = useStaticQuery(query)
  const [index, setIndex] = React.useState(0)
  React.useEffect(() => {
    const lastIndex = customers.length - 1
    if (index < 0) {
      setIndex(lastIndex)
    }
    if (index > lastIndex) {
      setIndex(0)
    }
  }, [index, customers])
  return (
    <Wrapper className="section">
      <Title title="reviews" />
      <div className="section-center">
        {customers.map((customer, customerIndex) => {
          const {
            data: { image, name, title, quote },
          } = customer
          const customerImg = image.localFiles[0].childImageSharp.fixed

          let position = "nextSlide"
          if (customerIndex === index) {
            position = "activeSlide"
          }
          if (
            customerIndex === index - 1 ||
            (index === 0 && customerIndex === customers.length - 1)
          ) {
            position = "lastSlide"
          }

          return (
            <article className={position} key={customerIndex}>
              <Image fixed={customerImg} className="img"></Image>
              <h4>{name}</h4>
              <p className="title">{title}</p>
              <p className="text">{quote}</p>
              <FaQuoteRight className="icon" />
            </article>
          )
        })}
        <button className="prev" onClick={() => setIndex(index - 1)}>
          <FiChevronLeft />
        </button>
        <button className="next" onClick={() => setIndex(index + 1)}>
          <FiChevronRight />
        </button>
      </div>
    </Wrapper>
  )
}

function ScrollCardsNavigator() {
  const { cards } = useContext(PreferencesContext)
  const [leftButtonVisible, setLeftButtonVisible] = useState(true)
  const [rightButtonVisible, setRightButtonVisible] = useState(true)
  const scrollBarContainer = useRef(null)

  const handleScroll = (e) => {
    const { scrollLeft, scrollWidth, offsetWidth } = e.target
    setLeftButtonVisible(scrollLeft > 0)
    const scrollRight = scrollWidth - offsetWidth - Math.abs(scrollLeft)
    setRightButtonVisible(scrollRight > 0)
  }

  const handleKeyboardKeys = (e) => {
    if (e.keyCode == 37) {
      scrollTo('left')
    } else if (e.keyCode == 39) {
      scrollTo('right')
    }
  }

  useLayoutEffect(() => {
    scrollBarContainer.current = document.querySelector('.AppContent')
  }, [])

  useEffect(() => {
    scrollBarContainer.current.addEventListener('scroll', handleScroll, true)
    window.addEventListener('keydown', handleKeyboardKeys)
    return () => {
      window.removeEventListener('keydown', handleKeyboardKeys)
      scrollBarContainer.current.removeEventListener('scroll', handleScroll)
    }
  }, [])

  useEffect(() => {
    setLeftButtonVisible(false)
    setRightButtonVisible(cards.length > APP.maxCardsPerRow)
  }, [cards])

  const scrollTo = (direction) => {
    if (!scrollBarContainer.current) {
      return
    }
    trackPageScroll(direction)
    const { scrollLeft } = scrollBarContainer.current
    const { offsetWidth } = scrollBarContainer.current.children[0]
    let extraPadding = 32 // Should be calculated dynamically

    const position =
      direction === 'left'
        ? scrollLeft - offsetWidth - extraPadding
        : scrollLeft + offsetWidth + extraPadding

    scrollBarContainer.current.scrollTo({
      left: position,
      behavior: 'smooth',
    })
  }

  return (
    <>
      {leftButtonVisible && (
        <button onClick={() => scrollTo('left')} className="scrollButton" style={{ left: 0 }}>
          <FiChevronLeft size={32} />
        </button>
      )}
      {rightButtonVisible && (
        <button onClick={() => scrollTo('right')} className="scrollButton" style={{ right: 0 }}>
          <FiChevronRight size={32} />
        </button>
      )}
    </>
  )
}

function Store({ data, error }) {
  if (error) return <Error title="Oops!" subtitle={error} />;

  const [apps, setApps] = useState([]);
  const [searchInput, setSearchInput] = useState();
  const [offset, setOffset] = useState(0);
  const [sort, setSort] = useState();

  const appsPerPage = 60;

  const totalPages = Math.ceil(apps.length / appsPerPage);

  useEffect(() => {
    if (Router.query.sort && Router.query.sort === "update-desc") {
      setSort(Router.query.sort);
      setApps(data.sort((a, b) => b.updatedAt.localeCompare(a.updatedAt)));
    } else {
      setSort("name-asc");
      setApps(data.sort((a, b) => a.name.localeCompare(b.name)));
    }

    let handlePagination = (e) => {
      if (e.keyCode === 39) {
        let nextBtn = document.getElementById("next");

        if (nextBtn) {
          document.getElementById("next").click();
        }
      } else if (e.keyCode === 37) {
        let previousBtn = document.getElementById("previous");

        if (previousBtn) {
          document.getElementById("previous").click();
        }
      }
    };

    document.addEventListener("keydown", handlePagination);

    setPagination(apps.length);

    return () => document.removeEventListener("keydown", handlePagination);
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, []);

  const setPagination = (appCount) => {
    let requestedPage = parseInt(Router.query.page);
    if (requestedPage) {
      let maxPages = Math.round(appCount / appsPerPage) + 1;

      // we check if its a valid page number
      if (requestedPage > maxPages || requestedPage < 2) return;

      // if it is, we continue
      let calculateOffset = appsPerPage * (requestedPage - 1);
      setOffset(calculateOffset);
    }
  };

  let handleNext = () => {
    window.scrollTo(0, 0);
    setOffset((offset) => offset + appsPerPage);

    Router.replace({
      pathname: "/apps",
      query: {
        page: Math.round((offset + appsPerPage - 1) / appsPerPage) + 1,
      },
    });
  };

  let handlePrevious = () => {
    window.scrollTo(0, 0);
    setOffset((offset) => offset - appsPerPage);

    Router.replace({
      pathname: "/apps",
      query: {
        page: Math.round((offset + appsPerPage - 1) / appsPerPage) - 1,
      },
    });
  };

  let Pagination = ({ small, disable }) => {
    return (
      <div className={small ? styles.minPagination : styles.pagbtn}>
        <button
          className={`button ${small ? styles.smallBtn : null}`}
          id={!small ? "previous" : ""}
          onClick={handlePrevious}
          title="Previous page of apps"
          disabled={offset > 0 ? (disable ? "disabled" : null) : "disabled"}
        >
          <FiChevronLeft />
          {!small ? "Previous" : ""}
        </button>
        <button
          className={`button ${small ? styles.smallBtn : null}`}
          id={!small ? "next" : ""}
          title="Next page of apps"
          onClick={handleNext}
          disabled={
            offset + appsPerPage < apps.length
              ? disable
                ? "disabled"
                : null
              : "disabled"
          }
        >
          {!small ? "Next" : ""}
          <FiChevronRight />
        </button>
      </div>
    );
  };

  const Title = () => {
    return (
      <>
        {!searchInput && <h1>All apps {`(${apps.length})`}</h1>}
        {searchInput && (
          <>
            {searchInput.startsWith("tags: ") && (
              <h1>Tag: {searchInput.split(": ")[1]}</h1>
            )}
            {!searchInput.startsWith("tags: ") && <h1>Search results</h1>}
          </>
        )}
      </>
    );
  };

  if (!apps) return <></>;

  return (
    <div>
      <MetaTags title="Apps - winstall" />

      <div className={styles.controls}>
        <Title />

        <Pagination small disable={searchInput ? true : false} />
      </div>

      <Search
        apps={apps}
        onSearch={(q) => setSearchInput(q)}
        label={"Search for apps"}
        placeholder={"Enter you search term here"}
      />

      <div className={styles.controls}>
        {!searchInput && (
          <>
            <p>
              Showing {apps.slice(offset, offset + appsPerPage).length} apps
              (page {Math.round((offset + appsPerPage - 1) / appsPerPage)} of{" "}
              {totalPages}).
            </p>
            <ListSort
              apps={apps}
              defaultSort={sort}
              onSort={(sort) => setSort(sort)}
            />
          </>
        )}
      </div>

      {!searchInput && (
        <ul className={`${styles.all} ${styles.storeList}`}>
          {apps.slice(offset, offset + appsPerPage).map((app) => (
            <SingleApp
              app={app}
              key={app._id}
              showTime={sort.includes("update-") ? true : false}
            />
          ))}
        </ul>
      )}

      <div className={styles.pagination}>
        <Pagination disable={searchInput ? true : false} />
        <em>
          Hit the <FiArrowLeftCircle /> and <FiArrowRightCircle /> keys on your
          keyboard to navigate between pages quickly.
        </em>
      </div>

      <Footer />
    </div>
  );
}

export default function Packs({ packs, error }) {
    if(error) return <Error title="Oops!" subtitle={error}/>
    
    const [offset, setOffset] = useState(0);

    const itemsPerPage = 60;
    const totalPages = Math.ceil(packs.length / itemsPerPage);

    let handleNext = () => {
        window.scrollTo(0, 0)
        setOffset(offset => offset + itemsPerPage);
    }
  
    let handlePrevious = () => {
        window.scrollTo(0, 0)
        setOffset(offset => offset - itemsPerPage);
    }

    const Pagination = ({ small, disable }) => {
        return (
          <div className={small ? styles.minPagination : styles.pagbtn}>
            <button
              className={`button ${small ? styles.smallBtn : null}`}
              id={!small ? "previous": ""}
              onClick={handlePrevious}
              title="Previous page of packs"
              disabled={offset > 0 ? (disable ? "disabled" : null) : "disabled"}
            >
              <FiChevronLeft />
              {!small ? "Previous" : ""}
            </button>
            <button
              className={`button ${small ? styles.smallBtn : null}`}
              id={!small ? "next" : ""}
              title="Next page of packs"
              onClick={handleNext}
              disabled={offset + itemsPerPage < packs.length ? ( disable ? "disabled" : null ) : "disabled"}
            >
              {!small ? "Next" : ""}
              <FiChevronRight />
            </button>
          </div>
        );
    }

      
    return (
        <PageWrapper>
            <MetaTags title="Packs - winstall" desc="Checkout the community's app collections for your new Windows 10 machine." />

            <div>
                <FeaturePromoter art="/assets/packsPromo.svg" promoId="packs" disableHide={true}>
                    <h3>Introducing Packs</h3>
                    <h1>Curate and share the apps you use daily.</h1>
                    <div className="box2">
                        <Link href="/packs/create"><button className="button spacer accent" id="starWine"><FiPlus/> Create a pack</button></Link>
                    </div>
                </FeaturePromoter>

                <div className={styles.controls}> 
                    <div>
                        <h1>All packs {`(${packs.length})`}</h1>
                        <p>
                            Showing {packs.slice(offset, offset + itemsPerPage).length} packs
                            (page {Math.round((offset + itemsPerPage - 1) / itemsPerPage)} of{" "}
                            {totalPages}).
                        </p>
                    </div>
                    <Pagination small/> 
                </div>

        
                
                <ul className={`${styles.all} ${styles.storeList}`}>
                    {packs.slice(offset, offset + itemsPerPage).map(pack => <li key={pack._id}><PackPreview pack={pack} /></li>)}
                </ul>

                <div className={styles.pagination}>
                    <Pagination/>
                    <em>
                        Hit the <FiArrowLeftCircle /> and <FiArrowRightCircle /> keys
                        on your keyboard to navigate between pages quickly.
                    </em>
                </div>
            </div>

        </PageWrapper>
    )
}