feat(goods-detail): 商品详情页主图/视频按后台「媒体显示顺序」切换
后台商品「高级设置」新增 media_order(1=主图在前 2=视频在前), 前端按其决定
商品详情页媒体区默认展示哪一个, 以及底部「图片/视频」切换按钮的排列顺序.
改动:
- goods-detail-view 组件:
- 新增 applyMediaOrder() 按 media_order 决定默认展示主图还是视频
- 新增 mediaOrderKey 计算属性 + watcher: 只在「媒体显示顺序/视频地址」
变化时重新应用, 避免用户手动切到「视频」后被详情数据深层变更打回
- 新增 mediaTabs 计算属性: 切换按钮顺序跟随配置
- 切换按钮改用 switchMediaTab(), 切回主图时暂停视频
- common/js/goods_detail_base.js: 父级那行 switchMedia 赋值原本是死代码
(父级无此 data 字段, 无模板读取), 改成与新规则一致, 避免两处规则打架
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@@ -115,7 +115,12 @@ export default {
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}
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//媒体
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if (this.goodsSkuDetail.video_url) this.switchMedia = "video";
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// 媒体显示顺序以后台商品「高级设置 → 媒体显示顺序」media_order 为准
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// (1=主图在前 2=视频在前); 真正渲染媒体区的是 goods-detail-view 组件,
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// 组件内部按同一规则切换, 这里保持一致避免两处规则打架
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if (this.goodsSkuDetail.video_url) {
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this.switchMedia = (Number(this.goodsSkuDetail.media_order) === 2) ? "video" : "img";
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}
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if (!Array.isArray(this.goodsSkuDetail.sku_images)) {
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if (this.goodsSkuDetail.sku_images) this.goodsSkuDetail.sku_images = this.goodsSkuDetail.sku_images.split(",");
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@@ -105,6 +105,24 @@ export default {
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}
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},
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methods: {
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/**
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* 应用后台「高级设置 → 媒体显示顺序」(media_order)
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* 1 = 主图在前(默认) 2 = 视频在前
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* 商品没有视频时一律主图在前
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*/
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applyMediaOrder() {
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const detail = this.goodsSkuDetail || {};
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if (!detail.video_url) {
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this.switchMedia = 'img';
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return;
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}
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this.switchMedia = Number(detail.media_order) === 2 ? 'video' : 'img';
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},
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// 手动切换图片/视频
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switchMediaTab(key) {
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this.switchMedia = key;
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if (key === 'img' && this.videoContext) this.videoContext.pause();
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},
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init(params) {
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this.skuId = params.sku_id;
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this.goodsId = params.goods_id;
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@@ -136,6 +154,9 @@ export default {
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this.videoContext = uni.createVideoContext('goodsVideo');
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// 媒体显示顺序: 以后台商品「高级设置 → 媒体显示顺序」为准
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this.applyMediaOrder();
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// #ifdef MP-WEIXIN
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this.goodsSyncToGoodsCircle();
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// #endif
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@@ -65,10 +65,11 @@
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<!-- 切换视频、图片 -->
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<view class="media-mode" v-if="goodsSkuDetail.video_url != ''">
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<text :class="{ 'color-base-bg': switchMedia == 'video' }" @click="switchMedia = 'video'">{{
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$lang('goods.detail.video') }}</text>
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<text :class="{ 'color-base-bg': switchMedia == 'img' }"
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@click="(switchMedia = 'img'), videoContext.pause()">{{ $lang('goods.detail.image') }}</text>
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<text v-for="tab in mediaTabs" :key="tab.key"
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:class="{ 'color-base-bg': switchMedia == tab.key }"
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@click="switchMediaTab(tab.key)">{{
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tab.key == 'video' ? $lang('goods.detail.video') : $lang('goods.detail.image')
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}}</text>
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</view>
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</view>
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@@ -684,6 +685,24 @@ export default {
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// 用于「未拿到任何数据时不显示真实内容」, 避免加载失败/异常时切到空详情页
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hasRealData() {
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return this.goodsSkuDetail && Number(this.goodsSkuDetail.goods_id) > 0;
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},
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// 媒体顺序的变更标识: 只在「媒体显示顺序 / 视频地址」变化时重新应用
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// 用它而不是直接 watch goodsSkuDetail(深度监听), 是为了避免用户手动切到
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// 「视频」后被详情数据的任意一次深层变更打回「主图」
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mediaOrderKey() {
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const detail = this.goodsSkuDetail || {};
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return (detail.media_order || 1) + '|' + (detail.video_url || '');
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},
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// 底部「图片 / 视频」切换按钮的排列, 与后台设置的媒体显示顺序保持一致
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mediaTabs() {
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const detail = this.goodsSkuDetail || {};
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const tabs = [{ key: 'img' }, { key: 'video' }];
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return Number(detail.media_order) === 2 ? tabs.reverse() : tabs;
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}
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},
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watch: {
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mediaOrderKey() {
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this.applyMediaOrder();
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}
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},
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mixins: [scroll, detail]
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