javascript - 绝对定位元素阻止拖动事件

Question

我正在尝试制作 slider ，但遇到了一个问题。我面临的问题是绝对元素阻止 slider 拖动事件。我需要以某种方式允许拖动底层图像以通过绝对定位的元素拖动。你知道如何实现吗？提前致谢!Draggable="true"不是解决方案，因为那时该元素变得可拖动(并且可以看到幽灵拖动图像)。这是我的代码:Codepen 如果你喜欢:https://codepen.io/saksija/pen/MWgqNeJ

HTML:

<div id="app">
  <div class="slider" ref="slider">
    <div class="slider-wrapper" ref="sliderContainer">
      <img ref="slide" src="https://image.shutterstock.com/image-photo/really-wide-panoramic-sunrise-shot-260nw-35170.jpg">
      <div v-for="id in 2" :class="['subitem', 'o-'+id]"></div>
    </div>
  </div>
</div>

Vue/Javascript:

var app = new Vue({
  el: '#app',
  data: () => ({
    startX: 0,
    lastTranslate: 0,
    translate: 0
  }),
  watch: {
    translate(value) {
      this.$refs.sliderContainer.style.transform = `translate3d(${value}px, 0px, 0px)`;
    }
  },
  methods: {
    dragStart(event) {
      this.startX = event.screenX;
    },
    dragEnd(event) {
      this.translate = this.lastTranslate;
    },
    dragMove(event) {
      if (event.screenX === 0) return;

      let distance = event.screenX - this.startX;
      let newTranslate = this.translate + distance;
      let sliderContainer = this.$refs.sliderContainer;

      this.lastTranslate = newTranslate;
      sliderContainer.style.transform = `translate3d(${newTranslate}px, 0px, 0px)`;
    },
  },
  mounted() {
    let slider = this.$refs.slider;
    slider.addEventListener('dragstart', this.dragStart);
    slider.addEventListener('drag', this.dragMove);
    slider.addEventListener('dragend', this.dragEnd);
  }
})

CSS:

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}
.slider {
  position: relative;
  display: flex;
  width: 100%;
  height: 100%;
}
.slider-wrapper {
  position: relative;
  display: block;
  height: 100%;
}
.slider img {
  position: relative;
  display: block;
  height: 100%;
}
.subitem {
  position: absolute;
  top: 20%;
  bottom: 20%;
  width: 100px;
  background-color: red;
  user-select: none;
}
.subitem.o-1 {
  left: 3%;
}
.subitem.o-2 {
  left: 20%;
}

Answer 1

假设 .subitem 不需要与之交互，您可以对它们使用 pointer-events:none;。例如:

.subitem {
  position: absolute;
  top: 20%;
  bottom: 20%;
  width: 100px;
  background-color: red;
  user-select: none;
  pointer-events:none;
}