zanui demos

docs/examples/waterfall.vue

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+<template>
+  <div class="page-card">
+    <h1 class="page-title">Card</h1>
+
+    <h2 class="page-sub-title">基础用法</h2>
+    <div class="waterfall">
+      <div
+        v-waterfall-lower="loadMore"
+        v-waterfall-upper="loadMoreUpper"
+        waterfall-disabled="isWaterfallDisabled"
+        waterfall-offset="400"
+      >
+        <div
+          class="waterfall-item"
+          v-for="item in list"
+          style="text-align: center;"
+        >
+          {{ item }}
+        </div>
+        <div v-if="loading" style="text-align: center;">
+          loading
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script>
+export default {
+  data() {
+    return {
+      list: [1, 2, 3, 4, 5],
+      loading: false,
+      finished: false
+    };
+  },
+  methods: {
+    loadMore() {
+      if (this.list.length >= 200) {
+        this.finished = true;
+        return;
+      }
+
+      this.loading = true;
+      setTimeout(() => {
+        let lastNumber = this.list[this.list.length - 1];
+        for (let i = 0; i < 5; i ++) {
+          lastNumber += 1;
+          this.list.push(lastNumber);
+        }
+        this.loading = false;
+      }, 2500);
+    },
+    loadMoreUpper() {
+      if (this.list[0] < 0) return;
+      this.list.unshift(-1);
+    }
+  },
+  computed: {
+    isWaterfallDisabled: function() {
+      return this.loading || this.finished;
+    }
+  }
+};
+</script>
+
+<style>
+.waterfall {
+  height: 300px;
+  overflow: scroll;
+}
+.waterfall-item {
+  line-height: 20px;
+  padding: 5px 0;
+}
+.page-sub-title {
+  padding: 15px;
+}
+</style>