<template>
  <div class="kole-dropdown" ref="root">
    <div class="kole-dropdown-trigger" @click="open = !open">
      <slot>操作</slot>
    </div>
    <div v-show="open" class="kole-dropdown-panel">
      <template v-for="(item, i) in items">
        <div v-if="item.divider" :key="'d' + i" class="kole-dropdown-divider"></div>
        <div
          v-else
          :key="item.key || i"
          class="kole-dropdown-item"
          :class="{ 'is-danger': item.danger, 'is-disabled': item.disabled }"
          @click="onClick(item)"
        >
          <span v-if="item.icon" class="ico">{{ item.icon }}</span>
          {{ item.label }}
        </div>
      </template>
    </div>
  </div>
</template>

<script>
export default {
  name: 'KoleDropdown',
  props: {
    items: { type: Array, default: () => [] },   // [{ key, label, danger, disabled, divider, icon }]
    triggerText: { type: String, default: '操作' }
  },
  data() { return { open: false }; },
  methods: {
    onClick(item) {
      if (item.disabled || item.divider) return;
      this.$emit('select', item.key != null ? item.key : item.label);
      this.open = false;
    },
    onDocClick(e) {
      if (this.$refs.root && !this.$refs.root.contains(e.target)) this.open = false;
    }
  },
  mounted() { document.addEventListener('click', this.onDocClick); },
  beforeDestroy() { document.removeEventListener('click', this.onDocClick); }
};
</script>

<!-- 样式对齐 组件2.txt Dropdown 规范 -->
<style>
.kole-dropdown { position: relative; display: inline-block; }
.kole-dropdown-trigger {
  border: 1px solid #E8ECF1; background: #fff; border-radius: 4px; height: 32px; padding: 0 12px;
  cursor: pointer; font-size: 14px; color: #262626; display: inline-flex; align-items: center; gap: 4px;
}
.kole-dropdown-trigger:hover { border-color: #2F54EB; }
.kole-dropdown-panel {
  position: absolute; z-index: 20; top: calc(100% + 4px); left: 0; min-width: 120px;
  background: #fff; border-radius: 6px; box-shadow: 0 4px 12px rgba(0,0,0,0.08); padding: 4px 0;
}
.kole-dropdown-item {
  display: flex; align-items: center; gap: 8px; height: 32px; padding: 0 12px; cursor: pointer;
  font-size: 14px; color: #262626; white-space: nowrap;
}
.kole-dropdown-item:hover { background: #F5F7FA; }
.kole-dropdown-item.is-danger { color: #CF1322; }
.kole-dropdown-item.is-disabled { color: #BFBFBF; cursor: not-allowed; }
.kole-dropdown-item.is-disabled:hover { background: transparent; }
.kole-dropdown-divider { height: 1px; background: #F0F0F0; margin: 4px 0; }
</style>
