<template>
  <view class="page-nav-bar">
    <view class="nav-btn left" @click="handlePrev">
      <text class="arrow-icon">‹</text>
    </view>
    <view class="nav-btn right" @click="handleNext">
      <text class="arrow-icon">›</text>
    </view>
  </view>
</template>

<script>
export default {
  name: 'PageNavBar',
  props: {
    hasPrev: { type: Boolean, default: true },
    hasNext: { type: Boolean, default: true }
  },
  methods: {
    handlePrev() {
      if (!this.hasPrev) return;
      this.$emit('prev');
    },
    handleNext() {
      if (!this.hasNext) return;
      this.$emit('next');
    }
  }
}
</script>

<style scoped>
.page-nav-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 110rpx;
  background: #fff;
  box-shadow: 0 -2rpx 16rpx rgba(0, 0, 0, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 160rpx;
  z-index: 100;
}

.nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80rpx;
  height: 80rpx;
}

.arrow-icon {
  font-size: 72rpx;
  color: #333;
  font-weight: 300;
  line-height: 1;
}

.nav-btn.right .arrow-icon {
  color: #ccc;
}
</style>