视频多个文件时可整体调整大小

src/views/book/courseware/data/video.js

@@ -21,14 +21,14 @@ export function getVideoData() {
   return {
     type: 'video',
     title: '视频',
-    single_size: 2 * 1024, // 单位MB
-    total_size: 10 * 1024, // 单位MB
+    single_size: 2 * 1024, // 单位 MB
+    total_size: 10 * 1024, // 单位 MB
     min_width: '528',
-    min_height: '139',
+    min_height: '169',
     property: getVideoProperty(),
     file_info_list: [],
     file_id_list: [], // 文件 id['20032-121212', '20032-121216']
-    // 内容中包含的文件列表,
+    // 内容中包含的文件列表，
     file_list: [],
     mind_map: {
       node_list: [{ name: '视频' }],

src/views/book/courseware/preview/components/video/VideoPreview.vue

@@ -1,70 +1,29 @@
 <template>
   <div ref="videoArea" class="video-preview" :style="[getAreaStyle(), getComponentStyle()]">
     <SerialNumberPosition v-if="isEnable(data.property.sn_display_mode)" :property="data.property" />
-    <div ref="videoAreaBox" class="main">
-      <template v-if="isMore">
-        <ul v-if="'independent' === data.property.view_method" class="view-independent">
-          <li v-for="(file, i) in data.file_list" :key="i">
-            <VideoPlay
-              view-size="small"
-              view-method="independent"
-              :file-id="file.file_id"
-              :cur-video-index="curVideoIndex"
-              @changeFile="changeFile"
-            />
-          </li>
-        </ul>
-        <div v-else class="view-list">
-          <el-carousel
-            ref="video_carousel"
-            indicator-position="none"
-            direction="vertical"
-            :autoplay="false"
-            :interval="0"
-            :style="{ width: elementWidth - 248 - 32 + 'px', height: elementHeight <= 0 ? 139 : elementHeight + 'px' }"
-          >
-            <el-carousel-item v-for="(file, i) in data.file_list" :key="i">
-              <VideoPlay
-                view-size="big"
-                :file-id="file.file_id"
-                :cur-video-index="curVideoIndex"
-                @changeFile="changeFile"
-              />
-            </el-carousel-item>
-          </el-carousel>
-          <div class="container-box" :style="{ height: elementHeight <= 0 ? 139 : elementHeight + 'px' }">
-            <ul
-              ref="container"
-              class="view-list-bottom"
-              :style="{ height: elementHeight + 'px', transform: `translateY(${translateY}px)` }"
-            >
-              <li v-for="(file, i) in data.file_list" :key="i" @click="handleAudioClick(i)">
-                <VideoPlay
-                  view-size="small"
-                  :file-id="file.file_id"
-                  :audio-index="i"
-                  :cur-video-index="curVideoIndex"
-                />
-              </li>
-            </ul>
-            <button v-if="viewTopBottomBtn" class="arrow top" @click="scroll(1)">
-              <i class="el-icon-arrow-up"></i>
-            </button>
-            <button v-if="viewTopBottomBtn" class="arrow bottom" @click="scroll(-1)">
-              <i class="el-icon-arrow-down"></i>
-            </button>
-          </div>
-        </div>
-      </template>
-      <template v-else>
+
+    <div v-if="'independent' === data.property.view_method" ref="videoAreaBox" class="main">
+      <ul class="view-independent">
+        <li v-for="(file, i) in data.file_list" :key="i" :style="getVideoItemStyle()">
+          <VideoPlay
+            view-size="small"
+            view-method="independent"
+            :file-id="file.file_id"
+            :cur-video-index="curVideoIndex"
+            @changeFile="changeFile"
+          />
+        </li>
+      </ul>
+    </div>
+    <div v-else ref="videoAreaBox">
+      <div class="view-list">
         <el-carousel
           ref="video_carousel"
           indicator-position="none"
           direction="vertical"
           :autoplay="false"
           :interval="0"
-          class="alone-video-area"
-          :style="{ height: elementHeight <= 0 ? 139 : elementHeight + 'px' }"
+          :style="{ width: elementWidth - 248 - 32 + 'px', height: elementHeight <= 0 ? 139 : elementHeight + 'px' }"
         >
           <el-carousel-item v-for="(file, i) in data.file_list" :key="i">
             <VideoPlay
@@ -75,7 +34,24 @@
             />
           </el-carousel-item>
         </el-carousel>
-      </template>
+        <div class="container-box" :style="{ height: elementHeight <= 0 ? 139 : elementHeight + 'px' }">
+          <ul
+            ref="container"
+            class="view-list-bottom"
+            :style="{ height: elementHeight + 'px', transform: `translateY(${translateY}px)` }"
+          >
+            <li v-for="(file, i) in data.file_list" :key="i" @click="handleAudioClick(i)">
+              <VideoPlay view-size="small" :file-id="file.file_id" :audio-index="i" :cur-video-index="curVideoIndex" />
+            </li>
+          </ul>
+          <button v-if="viewTopBottomBtn" class="arrow top" @click="scroll(1)">
+            <i class="el-icon-arrow-up"></i>
+          </button>
+          <button v-if="viewTopBottomBtn" class="arrow bottom" @click="scroll(-1)">
+            <i class="el-icon-arrow-down"></i>
+          </button>
+        </div>
+      </div>
     </div>
   </div>
 </template>
@@ -102,17 +78,15 @@ export default {
       elementID: '',
       isResizing: false,
       resizeObserver: null,
-      isMore: false,
+      isFirstLoad: true,
     };
   },
   watch: {
     data: {
       handler(val) {
         this.fileLen = val.file_list.length;
-        if (this.fileLen > 1) {
-          this.isMore = true;
-        }
-        if ((this.fileLen > 0 && this.data.property.view_method === 'list') || this.fileLen === 1) {
+
+        if (this.fileLen > 0 && this.data.property.view_method === 'list') {
           const ele = this.$refs.videoAreaBox;
           const sn_position = this.data.property.sn_position;
           // 序号在左和右补齐序号高度，去掉padding(8*2)
@@ -138,6 +112,22 @@ export default {
             }
           });
         }
+
+        if (this.fileLen > 0 && this.data.property.view_method === 'independent') {
+          const ele = this.$refs.videoAreaBox;
+          const sn_position = this.data.property.sn_position;
+          if (sn_position.includes('left') || sn_position.includes('right')) {
+            this.elementWidth = ele.clientWidth - 16;
+            this.elementHeight = ele.clientHeight + 30;
+          } else {
+            this.elementWidth = ele.clientWidth;
+            this.elementHeight = ele.clientHeight;
+          }
+
+          if (ele.clientHeight <= 0) {
+            this.elementHeight = this.data.min_height;
+          }
+        }
       },
       deep: true,
     },
@@ -164,38 +154,41 @@ export default {
           this.elementHeight = this.data.min_height;
         }
         this.fileLen = this.data.file_list.length;
-        if (this.fileLen > 1) {
-          this.isMore = true;
-        }
+
         this.isViewTopBottomBtn();
         return;
       }
+
       this.resizeObserver = new ResizeObserver((entries) => {
-        if (!this.getDragStatus()) return;
+        if (!this.getDragStatus() && !this.isFirstLoad) return;
         this.isResizing = true; // 标记为调整中
-        for (let entry of entries) {
-          window.requestAnimationFrame(() => {
-            const sn_position = this.data.property.sn_position;
-            // 序号在上方和下方减去序号高度
-            let w = entry.contentRect.width - 16;
-            let h = entry.contentRect.height;
-            if (sn_position.includes('top') || sn_position.includes('bottom')) {
-              w = entry.contentRect.width;
-              h = entry.contentRect.height - 30;
-            }
-            if (this.elementWidth === w) {
-              this.elementHeight = h;
-            } else {
-              this.elementWidth = w;
-            }
-          });
-        }
-
+        const delay = this.isFirstLoad ? 1000 : 0;
+        setTimeout(() => {
+          for (let entry of entries) {
+            window.requestAnimationFrame(() => {
+              const sn_position = this.data.property.sn_position;
+              // 序号在上方和下方减去序号高度
+              let w = entry.contentRect.width - 16;
+              let h = entry.contentRect.height;
+              if (sn_position.includes('top') || sn_position.includes('bottom')) {
+                w = entry.contentRect.width;
+                h = entry.contentRect.height - 30;
+              }
+              if (this.elementWidth === w) {
+                this.elementHeight = h;
+              } else {
+                this.elementWidth = w;
+              }
+            });
+          }
+        }, delay);
+        this.isFirstLoad = false;
         // 防抖：100ms 后恢复监听
         setTimeout(() => {
           this.isResizing = false;
         }, 500);
       });
+
       this.resizeObserver.observe(this.$el);
     });
   },
@@ -205,6 +198,18 @@ export default {
     }
   },
   methods: {
+    getVideoItemStyle() {
+      if (this.data.property.view_method !== 'independent') {
+        return {};
+      }
+      const height = this.elementHeight > 0 ? this.elementHeight : Number(this.data.min_height);
+      const width = (height * 16) / 9;
+      return {
+        width: `${width}px`,
+        height: `${height}px`,
+        flexShrink: 0,
+      };
+    },
     handleAudioClick(index) {
       // 获取 Carousel 实例
       const carousel = this.$refs.video_carousel;
@@ -288,13 +293,61 @@ export default {
 
   .view-independent {
     display: flex;
-    flex-wrap: wrap;
     gap: 20px;
-    width: 100%;
+    width: fit-content;
+    padding: 0;
+    margin: 0;
 
     > li {
-      width: 248px;
-      height: 139px;
+      flex-shrink: 0;
+      list-style: none;
+
+      :deep(.video-play) {
+        width: 100%;
+        height: 100%;
+      }
+    }
+  }
+
+  .main {
+    position: relative;
+    overflow: auto hidden !important;
+
+    // Firefox 滚动条样式
+    scrollbar-width: none; // 默认隐藏
+
+    // 自定义滚动条样式 - 完全浮动
+    &::-webkit-scrollbar {
+      width: 0; // 默认宽度为 0
+      height: 0;
+      transition:
+        width 0.3s ease,
+        height 0.3s ease;
+    }
+
+    // 鼠标悬停时显示滚动条
+    &:hover::-webkit-scrollbar {
+      width: 8px;
+      height: 8px;
+    }
+
+    &::-webkit-scrollbar-thumb {
+      background-color: rgba(0, 0, 0, 50%);
+      border-radius: 4px;
+      transition: background-color 0.3s ease;
+
+      &:hover {
+        background-color: rgba(0, 0, 0, 70%);
+      }
+    }
+
+    &::-webkit-scrollbar-track {
+      background-color: transparent;
+    }
+
+    &:hover {
+      scrollbar-width: thin; // 鼠标悬停时显示
+      scrollbar-color: rgba(0, 0, 0, 50%) transparent;
     }
   }