添加营销系统模块

src/components/Scrollpane/index.vue

@@ -0,0 +1,72 @@
+<template>
+  <div ref="scrollContainer" class="scroll-container" @wheel.prevent="handleScroll">
+    <div ref="scrollWrapper" :style="{left: left + 'px'}" class="scroll-wrapper">
+      <slot/>
+    </div>
+  </div>
+</template>
+
+<script>
+const padding = 15 // tag's padding
+
+export default {
+  name: 'ScrollPane',
+  data() {
+    return {
+      left: 0
+    }
+  },
+  methods: {
+    handleScroll(e) {
+      const eventDelta = e.wheelDelta || -e.deltaY * 3
+      const $container = this.$refs.scrollContainer
+      const $containerWidth = $container.offsetWidth
+      const $wrapper = this.$refs.scrollWrapper
+      const $wrapperWidth = $wrapper.offsetWidth
+
+      if (eventDelta > 0) {
+        this.left = Math.min(0, this.left + eventDelta)
+      } else {
+        if ($containerWidth - padding < $wrapperWidth) {
+          if (this.left < -($wrapperWidth - $containerWidth + padding)) {
+            this.left = this.left
+          } else {
+            this.left = Math.max(this.left + eventDelta, $containerWidth - $wrapperWidth - padding)
+          }
+        } else {
+          this.left = 0
+        }
+      }
+    },
+    moveToTarget($target) {
+      const $container = this.$refs.scrollContainer
+      const $containerWidth = $container.offsetWidth
+      const $targetLeft = $target.offsetLeft
+      const $targetWidth = $target.offsetWidth
+
+      if ($targetLeft < -this.left) {
+        // tag in the left
+        this.left = -$targetLeft + padding
+      } else if ($targetLeft + padding > -this.left && $targetLeft + $targetWidth < -this.left + $containerWidth - padding) {
+        // tag in the current view
+          // eslint-disable-line
+      } else {
+        // tag in the right
+        this.left = -($targetLeft - ($containerWidth - $targetWidth) + padding)
+      }
+    }
+  }
+}
+</script>
+
+<style rel="stylesheet/scss" lang="scss" scoped>
+  .scroll-container {
+    white-space: nowrap;
+    position: relative;
+    overflow: hidden;
+    width: 100%;
+    .scroll-wrapper {
+      position: absolute;
+    }
+  }
+</style>