skywalking-booster-ui/src/components/FullVue.vue

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<template>
  <div ref="scrollWrapRef" class="scroll-snap-container">
    <div v-if="items.length > 1" class="scroll-handler__wrapper">
      <div
        @click="scrollToGraph(item.i, index)"
        v-for="(item, index) in items"
        :key="item.i"
        :id="'scroll' + item.i"
        :class="[currentItem === index ? 'active' : '']"
        class="full-scroll-to"
      ></div>
    </div>
    <div :id="'item' + item.i" class="item" v-for="item in items" :key="item.i">
      <slot v-if="items.length">
        <component :is="item.type" :data="item" />
      </slot>
    </div>
  </div>
</template>
<script lang="ts">
import { ref, watch, onMounted, onBeforeUnmount, defineComponent } from "vue";
import { useI18n } from "vue-i18n";
import { useDashboardStore } from "@/store/modules/dashboard";
import Configuration from "../views/dashboard/configuration";
import controls from "../views/dashboard/controls/index";
import { useRoute } from "vue-router";

let isScrolling = false;
function scrollStop(callback: { (): void; (): void }, refresh = 66) {
  let scrollListener: number;
  window.addEventListener(
    "scroll",
    function (event) {
      isScrolling = true;
      window.clearTimeout(scrollListener);
      scrollListener = window.setTimeout(callback, refresh);
    },
    true
  );
}
scrollStop(function () {
  isScrolling = false;
});

export default defineComponent({
  name: "FullView",
  props: {
    items: {
      type: Array,
      default: () => [],
    },
  },
  components: { ...Configuration, ...controls },
  setup() {
    const dashboardStore = useDashboardStore();
    const { t } = useI18n();
    const arrayOfItems = ref<Element[]>([]);
    const currentItem = ref<number>(0);
    const scrollWrapRef = ref<any>(null);
    const { path, query } = useRoute();
    watch(
      () => dashboardStore.layout,
      () => {
        setTimeout(() => {
          observeItems();
        }, 500);
      }
    );
    function scrollToGraph(e: any, index: number) {
      isScrolling = true;
      let el = document.getElementById(`item${e}`);

      if (el != null) {
        el.scrollIntoView();
        currentItem.value = index;
      }
    }
    function observeItems() {
      const observer = new IntersectionObserver((entries) => {
        entries.forEach((element) => {
          if (element.intersectionRatio > 0) {
            // currentItem.value = element.target.id;
          }
        });
      });
      document.querySelectorAll(".item").forEach((element, index) => {
        arrayOfItems.value.push(element);
        observer.observe(element);
      });
    }
    function scrollTo(index: number) {
      let scrollIndex = arrayOfItems.value[index];
      if (scrollIndex) {
        let el = document.getElementById(`scroll${scrollIndex.id.substr(4)}`);
        if (el != null) {
          el.click();
        }
      }
    }
    function scrollUp() {
      if (currentItem.value > 0) {
        currentItem.value--;
        scrollTo(currentItem.value);
      }
    }
    function scrollDown() {
      if (currentItem.value < arrayOfItems?.value?.length - 1) {
        currentItem.value++;
        scrollTo(currentItem.value);
      } else if (currentItem.value === arrayOfItems?.value?.length - 1) {
        currentItem.value = 0;
        scrollTo(currentItem.value);
      }
    }
    function wheelGraphScroll(e: WheelEvent) {
      e.preventDefault();
      if (!isScrolling) {
        if (e.deltaY < 0) {
          scrollUp();
        } else {
          scrollDown();
        }
      }
    }
    function keyGraphScroll(e: KeyboardEvent) {
      if (e.keyCode == 38) {
        e.preventDefault();
        scrollUp();
      } else if (e.keyCode === 40) {
        e.preventDefault();
        scrollDown();
      }
    }
    function initScroller() {
      //todo: smarter logic on when to add listeners
      if (query["portal"] === "true" && path.endsWith("Activity")) {
        console.log("Adding portal wheel/key listeners");
        scrollWrapRef?.value?.addEventListener("wheel", wheelGraphScroll, {
          passive: false,
        });
        document.addEventListener("keydown", keyGraphScroll, {
          passive: false,
        });
      }
    }
    onMounted(() => {
      observeItems();
      initScroller();
    });
    onBeforeUnmount(() => {
      scrollWrapRef?.value?.removeEventListener("wheel", wheelGraphScroll);
      document.removeEventListener("keydown", keyGraphScroll);
    });
    return {
      t,
      dashboardStore,
      currentItem,
      scrollToGraph,
      scrollWrapRef,
    };
  },
});
</script>

<style lang="scss" scoped>
.scroll-snap-container {
  height: 90vh;
  display: block;
  scroll-behavior: smooth;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  perspective: 1000;
  overflow: hidden;

  .scroll-handler__wrapper {
    z-index: 20;
    position: fixed;
    display: flex;
    flex-direction: column;
    right: 0;
    top: 37vh;
    height: auto;
    width: 17px;

    .full-scroll-to {
      opacity: 0.5;
      width: 10px;
      height: 10px;
      margin: 5px 0;
      border-radius: 50%;
      cursor: pointer;
      background: #4f4f4f;
    }

    .full-scroll-to.active {
      opacity: 1;
      padding: 6px;
      background: #1a1a1a;
    }
  }
}

.scroll-snap-container::-webkit-scrollbar {
  display: none;
}

.item {
  // scroll-snap-align: start;
  height: 100%;
  // padding: 40px;
  // margin: 40px 0;
  // background: orange;
}
</style>