SocialNetworks_duan/src/views/KeyNodeDiscern/bridgeCommunication/components/GraphPanel.vue

<template>
  <div class="right-panel">
    <img src="@/assets/images/head/bayi.png" alt="" class="head" />
    <div class="key-node-recognition">
      <div class="content-wrapper">
        <div class="chart-container">
          <BridgeCommunityGraph
            ref="bridgeGraphRef"
            v-if="currentComponent == 'BridgeCommunityNode'"
            :timestamp="store.activeTimePoint"
            @click:navigateToCommunityDetail="handleClickCommunity"
          />
          <DetailCommunityGraph
            v-else
            ref="detailCommunityGraphRef"
            :communityId="currentSelectedCommunityId"
            @click:goback="handleClickGoBack"
          />
        </div>
        <div class="timeline-container">
          <span class="time-label">2023.10.07 00:00:00</span>
          <div class="timeline-track" :style="trackStyle" @click="handleTrackClick">
            <div
              v-for="point in store.timePoints"
              :key="point.id"
              class="timeline-point-wrapper"
              :style="{ left: `${pointPositions[point.id]}%` }"
              @click="handleTimePointClick(point.id)"
            >
              <el-tooltip
                class="timePoint-box-item"
                effect="light"
                :content="point.timestamp"
                placement="bottom"
              >
                <div class="timeline-point" :class="{ active: store.activeTimePoint === point.id }">
                  <el-popover
                    v-if="store.activeTimePoint === point.id"
                    effect="dark"
                    placement="top"
                    :title="point.leaderId"
                    :width="50"
                    trigger="click"
                    content="发布贴文"
                  >
                  </el-popover>
                </div>
              </el-tooltip>
            </div>
            <div class="active-pin" :style="{ left: `${clickedPosition}%` }"></div>
          </div>
          <span class="time-label">2023.10.15 00:00:00</span>
        </div>
      </div>
    </div>
  </div>
</template>

<script setup>
import { ref, defineExpose, watch, computed, defineProps } from "vue"
import { useKeyNodeStore2 } from "@/store/keyNodeStore2"

// 接收 stopAutomaticPlay 方法
const props = defineProps({
  stopAutomaticPlay: { type: Function, required: true }
})

import BridgeCommunityGraph from "./graph/bridgeCommunityGraph.vue"
import DetailCommunityGraph from "./graph/detailCommunityGraph.vue"

const store = useKeyNodeStore2()
const leaderGraphRef = ref(null)
// 添加对BridgeCommunityGraph的引用
const bridgeGraphRef = ref(null)
// 设置当前激活的组件--默认是BridgeCommunityGraph
const currentComponent = ref("BridgeCommunityNode")
const currentSelectedCommunityId = ref(null)

// 用于存储点击位置
const clickedPosition = ref(0)

// 添加定时器相关变量
let animationTimer = null
const isAutoPlaying = ref(false)

// 开始自动播放方法
const startAutomaticPlay = () => {
  // 如果已经在播放，先清除
  if (animationTimer) {
    clearInterval(animationTimer)
  }

  isAutoPlaying.value = true

  // 每300ms移动2%
  animationTimer = setInterval(() => {
    // 计算新位置
    const newPosition = clickedPosition.value + 2

    // 检查是否到达终点
    if (newPosition >= 100) {
      clickedPosition.value = 100
      props.stopAutomaticPlay()
      return
    }

    // 更新位置
    clickedPosition.value = newPosition

    // 根据当前位置更新activeTimePoint
    updateActiveTimePointByPosition(newPosition)
  }, 300)
}

// 根据位置更新activeTimePoint
const updateActiveTimePointByPosition = (position) => {
  // 获取排序后的时间点
  const sortedPoints = [...store.timePoints].sort((a, b) => {
    return new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime()
  })

  // 计算每个时间点的原始位置百分比（不考虑重叠调整）
  const startTime = new Date("2023-10-07T00:00:00").getTime()
  const endTime = new Date("2023-10-15T00:00:00").getTime()
  const timeRange = endTime - startTime

  const originalPositions = {}
  sortedPoints.forEach((point) => {
    const pointTime = new Date(point.timestamp).getTime()
    const pointPos = ((pointTime - startTime) / timeRange) * 100
    originalPositions[point.id] = pointPos
  })
  // 找到当前位置对应的时间点
  let targetPointId = null
  if (sortedPoints.length > 0 && position < originalPositions[sortedPoints[0].id]) {
    store.setActiveTimePoint(0)
  } else {
    for (let i = 0; i < sortedPoints.length; i++) {
      const point = sortedPoints[i]
      const pointPosition = originalPositions[point.id]
      // 如果位置大于等于当前时间点位置，则选中当前时间点
      if (position >= pointPosition) {
        targetPointId = point.id
      } else {
        break
      }
    }
  }

  // 如果找到了对应的时间点且与当前activeTimePoint不同，则更新
  if (targetPointId && targetPointId !== store.activeTimePoint) {
    store.setActiveTimePoint(targetPointId)
  }
}

const handleTrackClick = (event) => {
  // 停止自动播放
  props.stopAutomaticPlay()

  // 清除内部定时器
  if (animationTimer) {
    clearInterval(animationTimer)
    animationTimer = null
    isAutoPlaying.value = false
  }

  // 获取时间轴轨道的DOM元素和尺寸信息
  const trackElement = event.currentTarget
  const rect = trackElement.getBoundingClientRect()

  // 计算点击位置在时间轴上的百分比
  const clickPosition = ((event.clientX - rect.left) / rect.width) * 100
  // 保存点击位置
  clickedPosition.value = clickPosition

  // 获取排序后的时间点
  const sortedPoints = [...store.timePoints].sort((a, b) => {
    return new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime()
  })

  // 计算每个时间点的原始位置百分比（不考虑重叠调整）
  const startTime = new Date("2023-10-07T00:00:00").getTime()
  const endTime = new Date("2023-10-15T00:00:00").getTime()
  const timeRange = endTime - startTime

  const originalPositions = {};
  sortedPoints.forEach((point) => {
    const pointTime = new Date(point.timestamp).getTime();
    const position = ((pointTime - startTime) / timeRange) * 100;
    originalPositions[point.id] = position;
  });

  // 特殊情况：如果点击位置小于所有时间点的位置，则设置activeTimePoint为0
  if (sortedPoints.length > 0 && clickPosition < originalPositions[sortedPoints[0].id]) {
    store.setActiveTimePoint(0);
    return; // 直接返回，不再执行后续逻辑
  }

  // 找到点击位置对应的时间点
  let targetPointId = null;
  for (let i = 0; i < sortedPoints.length; i++) {
    const point = sortedPoints[i];
    const pointPosition = originalPositions[point.id];

    // 如果点击位置大于等于当前时间点位置，且小于下一个时间点位置，则选中当前时间点
    if (
      clickPosition >= pointPosition &&
      (i === sortedPoints.length - 1 || clickPosition < originalPositions[sortedPoints[i + 1].id])
    ) {
      targetPointId = point.id;
      break;
    }
  }

  // 如果找到了对应的时间点，则更新activeTimePoint
  if (targetPointId) {
    store.setActiveTimePoint(targetPointId);
  }
};

const handleGraphNodeClick = (leaderData) => {
  store.openLeaderDetail(leaderData)
}

const handleClickCommunity = (communityId) => {
  if (communityId) {
    currentComponent.value = "DetailCommunityNode"
    currentSelectedCommunityId.value = communityId
  }
}

const handleClickGoBack = (currentComponentName) => {
  currentComponent.value = currentComponentName
}

const highlightNode = (leaderId) => {
  if (leaderGraphRef.value) {
    leaderGraphRef.value.highlightNode(leaderId)
  }
  // 调用BridgeCommunityGraph的highlightNode方法
  if (bridgeGraphRef.value) {
    bridgeGraphRef.value.highlightNode(leaderId)
  }
}

// 计算时间点在时间轴上的位置百分比
const calculatePositions = (timestamp) => {
  // 时间范围: 2023-10-07T00:00:00 到 2023-10-15T00:00:00
  const startTime = new Date("2023-10-07T00:00:00").getTime()
  const endTime = new Date("2023-10-15T00:00:00").getTime()
  const timeRange = endTime - startTime
  // 复制并排序时间点数据
  const sortedPoints = [...store.timePoints].sort((a, b) => {
    return new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime()
  })
  // 计算每个点的原始位置
  const pointPositions = {}
  sortedPoints.forEach((point) => {
    const pointTime = new Date(point.timestamp).getTime()
    const position = ((pointTime - startTime) / timeRange) * 100
    pointPositions[point.id] = Math.max(0, Math.min(100, position))
  })
  // // 处理重叠 (假设每个点宽度约为20px，时间轴总宽度为可用宽度)
  // const pointWidthPercentage = 5 // 估算的点宽度百分比
  // const minSpacing = pointWidthPercentage // 最小间距百分比

  // // 调整重叠的点
  // for (let i = 1; i < sortedPoints.length; i++) {
  //   const prevPoint = sortedPoints[i - 1]
  //   const currPoint = sortedPoints[i]

  //   const prevPosition = pointPositions[prevPoint.id]
  //   const currPosition = pointPositions[currPoint.id]

  //   // 检查是否重叠
  //   if (currPosition - prevPosition < minSpacing) {
  //     // 调整当前点位置
  //     pointPositions[currPoint.id] = prevPosition + minSpacing

  //     // 确保不超出范围
  //     if (pointPositions[currPoint.id] > 100) {
  //       pointPositions[currPoint.id] = 100
  //     }
  //   }
  // }

  return pointPositions
}

// 响应式引用存储位置信息
const pointPositions = ref({})

// 监听时间点变化，重新计算位置
watch(
  () => store.timePoints,
  () => {
    pointPositions.value = calculatePositions()
  },
  { immediate: true, deep: true }
)

// 计算时间轴轨道样式
const trackStyle = computed(() => {
  // 优先使用clickedPosition，如果没有则使用activeTimePoint对应的位置
  const activePosition =
    clickedPosition.value !== null
      ? clickedPosition.value
      : pointPositions.value[store.activeTimePoint] || 0

  return {
    background: `linear-gradient(90deg, #3B7699 0%, #00F3FF ${activePosition}%, #3B7699 ${activePosition}%, #3B7699 100%)`
  }
})

// 为了保证点击时间点也能更新clickedPosition，修改handleTimePointClick方法
const handleTimePointClick = (pointId) => {
  // 停止自动播放
  props.stopAutomaticPlay()

  // 清除内部定时器
  if (animationTimer) {
    clearInterval(animationTimer)
    animationTimer = null
    isAutoPlaying.value = false
  }

  // 设置当前激活的时间点
  store.setActiveTimePoint(pointId)

  // 查找该时间点的原始位置
  const point = store.timePoints.find((p) => p.id === pointId)
  if (point) {
    const startTime = new Date("2023-10-07T00:00:00").getTime()
    const endTime = new Date("2023-10-15T00:00:00").getTime()
    const timeRange = endTime - startTime
    const pointTime = new Date(point.timestamp).getTime()
    const position = ((pointTime - startTime) / timeRange) * 100
    clickedPosition.value = position
  }
}

// 在组件卸载时清除定时器
import { onUnmounted } from "vue"
onUnmounted(() => {
  if (animationTimer) {
    clearInterval(animationTimer)
  }
})

defineExpose({ highlightNode, startAutomaticPlay })
</script>

<style scoped lang="scss">
.right-panel {
  width: 100%;
  height: 100%;
  position: relative;
}
.head {
  margin: 0 auto;
}
.key-node-recognition {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.background-svg-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.content-wrapper {
  width: 100%;
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  height: 100%;

  box-sizing: border-box;
  .graph-img-title {
    display: absolute;
    top: 0;
    margin: 0 auto;
  }
}
.chart-container {
  width: 100%;
  height: 100%;
  margin-top: vh(35);
}
.timeline-container {
  width: 95%;
  height: vh(40);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: vh(0) vw(10);
  box-sizing: border-box;
  position: absolute;
  z-index: 1;
  bottom: vh(15);
  left: vw(20);
  border-radius: vw(4);
  border: 1px solid #3aa1f8;
  background: linear-gradient(270deg, rgba(0, 82, 125, 0.48) 0%, rgba(0, 200, 255, 0.23) 100%);
  backdrop-filter: blur(3px);
}
.time-label {
  font-size: vw(12);
  color: #a9c2e0;
}
.timeline-track {
  flex-grow: 1;
  height: vh(4);
  margin: vh(0) vw(15);
  position: relative;
  display: flex;
  align-items: center;
  cursor: pointer;
}
.timeline-point-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  height: vh(20);
  cursor: pointer;
  position: absolute;
  transform: translateX(-50%);
}
.timeline-point {
  width: 4px;
  height: vh(18);
  background: linear-gradient(180deg, #fee39e 0%, #f9bd25 100%);
  border-radius: 10px;
  transition: transform 0.3s ease;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

// 删除 ::after 伪元素，因为不再需要内部圆点
.timeline-point::after {
  display: none;
}

// 调整 active 状态样式
.timeline-point.active {
  background: linear-gradient(180deg, #fee39e 0%, #f9bd25 100%);
  transform: scaleX(1.5);
}
.active-pin {
  width: vw(14);
  height: vh(14);
  background-image: url("@/assets/images/time-point.png");
  background-size: cover;
  position: absolute;
  bottom: vh(-3);
  transform: translateX(-50%); // 居中对齐
  z-index: 10; // 确保显示在时间点上方
}
</style>