fix: restructure matrix view layout - X=date+time header, Y=event blocks

- Remove Y-axis time slot rows (was wrong)
- X-axis: hierarchical header (weekday + date | time slot name)
- Body: lane-packed event blocks in each date×slot column
- Show teacher name and student names in each block
- Empty slots show clickable '+' placeholder

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/pages/clazz/components/ClazzMatrixView.vue

@@ -1,86 +1,64 @@
 <template>
-  <div class="matrix-wrapper" ref="wrapperRef">
-    <!-- 表头：日期 + 无课日合并列 -->
+  <div class="matrix-wrapper">
+    <!-- 双行表头：日期 + 二级时段 -->
     <div class="matrix-header">
-      <div class="header-corner">时段</div>
-      <div
-        v-for="col in columns"
-        :key="col.dateKey"
-        class="header-cell"
-        :style="{ width: colWidth }"
-      >
+      <div class="header-col" v-for="col in columns" :key="col.key">
         <div class="header-date">{{ col.dateLabel }}</div>
-        <div class="header-weekday">{{ col.weekdayLabel }}</div>
+        <div class="header-time">{{ col.slotLabel }}</div>
       </div>
     </div>
 
-    <!-- 表体：每个时段一行 -->
-    <div class="matrix-body">
-      <template v-for="slotKey in timeSlots" :key="slotKey">
-        <!-- 时段标签行 -->
-        <div class="slot-row">
-          <div class="slot-label">{{ slotLabels[slotKey] || slotKey }}</div>
+    <!-- 表体：课块平铺 -->
+    <div class="matrix-body" ref="bodyRef">
+      <div class="body-col" v-for="col in columns" :key="col.key">
+        <div
+          v-for="lane in col.lanes"
+          class="event-lane"
+        >
           <div
-            v-for="col in columns"
-            :key="col.dateKey"
-            class="slot-cell"
-            :style="{ width: colWidth }"
-            :class="{
-              'slot-cell--today': col.isToday,
-              'slot-cell--past': col.isPast,
-              'slot-cell--empty': !eventsBySlot[col.dateKey]?.[slotKey]?.length,
-            }"
-            @click="onCellClick(col.dateKey, slotKey)"
+            v-for="ev in lane"
+            :key="ev.id"
+            class="event-block"
+            :class="{ 'event-block--ghost': ev.isRepeatGhost }"
+            :style="eventStyle(ev)"
+            @click.stop="onEventClick(ev)"
           >
-            <!-- Lane-packed events -->
-            <template v-if="lanesBySlot[col.dateKey]?.[slotKey]">
-              <div
-                v-for="(lane, laneIdx) in lanesBySlot[col.dateKey][slotKey]"
-                :key="laneIdx"
-                class="event-lane"
-                :style="{ height: laneHeight }"
-              >
-                <div
-                  v-for="ev in lane"
-                  :key="ev.id"
-                  class="event-block"
-                  :class="{ 'event-block--ghost': ev.isRepeatGhost }"
-                  :style="eventStyle(ev)"
-                  @click.stop="onEventClick(ev)"
-                >
-                  <div class="event-title">{{ ev.clazzName }}</div>
-                  <div class="event-meta">{{ fmtTime(ev.startAt) }}-{{ fmtTime(ev.endAt) }}</div>
-                  <div class="event-meta" v-if="ev.teacherName">{{ ev.teacherName }}</div>
-                  <div class="event-meta event-meta--students" v-if="ev.studentNames.length">{{ ev.studentNames.join('、') }}</div>
-                </div>
-              </div>
-            </template>
+            <div class="ev-title">{{ ev.clazzName }}</div>
+            <div class="ev-time">{{ fmtTime(ev.startAt) }}-{{ fmtTime(ev.endAt) }}</div>
+            <div class="ev-teacher" v-if="ev.teacherName">{{ ev.teacherName }}</div>
+            <div class="ev-students" v-if="ev.studentNames.length">{{ ev.studentNames.join('、') }}</div>
           </div>
         </div>
-      </template>
+        <!-- 空 slot 占位，点击可创建 -->
+        <div
+          v-if="!col.lanes.length"
+          class="slot-empty"
+          @click="onCellClick(col.dateKey, col.slotKey)"
+        >+</div>
+      </div>
     </div>
   </div>
 </template>
 
 <script lang="ts">
-import { computed, defineComponent, PropType, ref } from 'vue';
+import { computed, defineComponent, PropType } from 'vue';
 import { NormalizedClazzEvent } from '../useClazzViewModel';
-import { DEFAULT_TIME_SLOTS, SLOT_LABELS } from '../constants';
+import { SLOT_LABELS } from '../constants';
 import { DateFormatter, formatDate } from '~/utils';
 
-export interface MatrixColumn {
+interface MatrixCol {
+  key: string;
   dateKey: string;
-  dateLabel: string;   // MM-DD
-  weekdayLabel: string; // 周X
-  isToday: boolean;
-  isPast: boolean;
+  slotKey: string;
+  dateLabel: string;
+  slotLabel: string;
+  lanes: NormalizedClazzEvent[][];
 }
 
-/** Simple lane packing: assign each event to first lane that doesn't overlap */
+const WEEKDAYS = ['周日', '周一', '周二', '周三', '周四', '周五', '周六'];
+
 function packLanes(events: NormalizedClazzEvent[]): NormalizedClazzEvent[][] {
-  const sorted = [...events].sort(
-    (a, b) => a.startAt.getTime() - b.startAt.getTime(),
-  );
+  const sorted = [...events].sort((a, b) => a.startAt.getTime() - b.startAt.getTime());
   const lanes: NormalizedClazzEvent[][] = [];
   for (const ev of sorted) {
     let placed = false;
@@ -92,66 +70,25 @@ function packLanes(events: NormalizedClazzEvent[]): NormalizedClazzEvent[][] {
         break;
       }
     }
-    if (!placed) {
-      lanes.push([ev]);
-    }
+    if (!placed) lanes.push([ev]);
   }
   return lanes;
 }
 
-const WEEKDAYS = ['周日', '周一', '周二', '周三', '周四', '周五', '周六'];
-
 export default defineComponent({
   name: 'ClazzMatrixView',
   props: {
-    /** 标准化事件列表 */
     events: { type: Array as PropType<NormalizedClazzEvent[]>, required: true },
-    /** 当前周区间起点 */
     weekStart: { type: String as PropType<string>, required: true },
-    /** 当前周区间终点 */
     weekEnd: { type: String as PropType<string>, required: true },
   },
   emits: ['cell-click', 'event-click'],
   setup(props, { emit }) {
-    const wrapperRef = ref<HTMLDivElement | null>(null);
-
-    const timeSlots = DEFAULT_TIME_SLOTS;
-    const slotLabels = SLOT_LABELS;
-
-    const todayStr = formatDate(new Date(), DateFormatter.Date);
-
-    /** 生成列 */
-    const columns = computed<MatrixColumn[]>(() => {
-      const start = new Date(props.weekStart);
-      const end = new Date(props.weekEnd);
-      const cols: MatrixColumn[] = [];
-      const cursor = new Date(start);
-      while (cursor <= end) {
-        const key = formatDate(cursor, DateFormatter.Date);
-        cols.push({
-          dateKey: key,
-          dateLabel: formatDate(cursor, 'MM-DD'),
-          weekdayLabel: WEEKDAYS[cursor.getDay()],
-          isToday: key === todayStr,
-          isPast: cursor < new Date(todayStr),
-        });
-        cursor.setDate(cursor.getDate() + 1);
-      }
-      return cols;
-    });
-
-    const colWidth = computed(() => {
-      if (!wrapperRef.value) return 'auto';
-      const avail = wrapperRef.value.clientWidth - 1.2 /* slot label */;
-      return `${avail / columns.value.length}px`;
-    });
-
-    const laneHeight = '0.6rem';
-
-    /** events 按 (dateKey, timeSlotKey) 分组 */
+    /** 按（dateKey, timeSlotKey）聚合事件 */
     const eventsBySlot = computed(() => {
       const map: Record<string, Record<string, NormalizedClazzEvent[]>> = {};
       for (const ev of props.events) {
+        if (!ev.visible) continue;
         if (!map[ev.dateKey]) map[ev.dateKey] = {};
         if (!map[ev.dateKey][ev.timeSlotKey]) map[ev.dateKey][ev.timeSlotKey] = [];
         map[ev.dateKey][ev.timeSlotKey].push(ev);
@@ -159,16 +96,31 @@ export default defineComponent({
       return map;
     });
 
-    /** Lane-packed per slot */
-    const lanesBySlot = computed(() => {
-      const out: Record<string, Record<string, NormalizedClazzEvent[][]>> = {};
-      for (const [dateKey, slots] of Object.entries(eventsBySlot.value)) {
-        out[dateKey] = {};
-        for (const [slotKey, evs] of Object.entries(slots)) {
-          out[dateKey][slotKey] = packLanes(evs);
+    /** 生成列：每个 date×slot 组合一列，仅含课时段 */
+    const columns = computed<MatrixCol[]>(() => {
+      const cols: MatrixCol[] = [];
+      const start = new Date(props.weekStart);
+      const end = new Date(props.weekEnd);
+      const cursor = new Date(start);
+      while (cursor <= end) {
+        const dk = formatDate(cursor, DateFormatter.Date);
+        const dateLabel = `${WEEKDAYS[cursor.getDay()]} ${formatDate(cursor, 'MM-DD')}`;
+        const slots = eventsBySlot.value[dk];
+        if (slots) {
+          for (const [slotKey, evs] of Object.entries(slots)) {
+            cols.push({
+              key: `${dk}_${slotKey}`,
+              dateKey: dk,
+              slotKey,
+              dateLabel,
+              slotLabel: SLOT_LABELS[slotKey] || slotKey,
+              lanes: packLanes(evs),
+            });
+          }
         }
+        cursor.setDate(cursor.getDate() + 1);
       }
-      return out;
+      return cols;
     });
 
     function fmtTime(d: Date): string {
@@ -177,7 +129,7 @@ export default defineComponent({
 
     function eventStyle(ev: NormalizedClazzEvent) {
       return {
-        backgroundColor: ev.color || 'rgba(55, 136, 216, 0.15)',
+        backgroundColor: ev.color || 'rgba(55, 136, 216, 0.12)',
         borderLeft: `3px solid ${ev.color || '#3788d8'}`,
       };
     }
@@ -190,10 +142,7 @@ export default defineComponent({
       emit('event-click', ev);
     }
 
-    return {
-      wrapperRef, timeSlots, slotLabels, columns, colWidth, laneHeight,
-      eventsBySlot, lanesBySlot, fmtTime, eventStyle, onCellClick, onEventClick,
-    };
+    return { columns, fmtTime, eventStyle, onCellClick, onEventClick };
   },
 });
 </script>
@@ -202,133 +151,101 @@ export default defineComponent({
 .matrix-wrapper {
   width: 100%;
   height: 100%;
-  font-size: 0.24rem;
   display: flex;
   flex-direction: column;
+  font-size: 0.24rem;
+  overflow: auto;
 }
 
+/* ═══ 双行表头 ═══ */
 .matrix-header {
   display: flex;
   flex-shrink: 0;
   position: sticky;
   top: 0;
-  background: #f7f8fa;
   z-index: 2;
+  background: #f7f8fa;
   border-bottom: 1px solid #e8e8e8;
 
-  .header-corner {
-    width: 1.2rem;
+  .header-col {
     flex-shrink: 0;
-    padding: 0.15rem 0;
+    width: 2.4rem;
     text-align: center;
-    font-weight: 600;
-    color: #666;
-  }
-
-  .header-cell {
-    flex: 1;
-    text-align: center;
-    padding: 0.15rem 0;
     border-left: 1px solid #f0f0f0;
+    padding: 0.12rem 0.06rem;
+
+    &:first-child { border-left: none; }
 
     .header-date {
       font-weight: 600;
       font-size: 0.26rem;
+      line-height: 1.5;
     }
-    .header-weekday {
+    .header-time {
       font-size: 0.22rem;
-      color: #999;
+      color: #888;
+      line-height: 1.4;
     }
-
-    &:first-child { border-left: none; }
   }
 }
 
+/* ═══ 表体 ═══ */
 .matrix-body {
+  display: flex;
   flex: 1;
-  overflow-y: auto;
+  overflow: auto;
 
-  .slot-row {
+  .body-col {
+    flex-shrink: 0;
+    width: 2.4rem;
+    padding: 0.08rem;
+    border-left: 1px solid #f5f5f5;
     display: flex;
-    border-bottom: 1px solid #f0f0f0;
+    flex-direction: column;
+    gap: 0.06rem;
 
-    .slot-label {
-      width: 1.2rem;
-      flex-shrink: 0;
-      padding: 0.1rem;
-      text-align: center;
-      font-size: 0.22rem;
-      color: #666;
-      align-self: start;
-      padding-top: 0.25rem;
-    }
+    &:first-child { border-left: none; }
+  }
 
-    .slot-cell {
-      flex: 1;
-      min-height: 0.8rem;
-      padding: 0.06rem;
-      border-left: 1px solid #f5f5f5;
-      cursor: pointer;
-      transition: background-color 0.15s;
+  .event-lane {
+    display: flex;
+    gap: 0.06rem;
+  }
 
-      &:hover {
-        background-color: #f0f5ff;
-      }
+  .event-block {
+    flex: 1;
+    padding: 0.06rem 0.1rem;
+    border-radius: 0.06rem;
+    cursor: pointer;
+    overflow: hidden;
+    font-size: 0.22rem;
+    transition: box-shadow 0.15s;
 
-      &--today {
-        background-color: #fffbe6;
-      }
+    &:hover { box-shadow: 0 0.04rem 0.12rem rgba(0,0,0,0.15); }
 
-      &--past {
-        opacity: 0.6;
-      }
+    &--ghost { opacity: 0.55; border-style: dashed; }
 
-      &--empty {
-        // subtle indication
-      }
-    }
+    .ev-title { font-weight: 600; font-size: 0.24rem; }
+    .ev-time { font-size: 0.2rem; color: #666; }
+    .ev-teacher { font-size: 0.2rem; color: #555; margin-top: 0.02rem; }
+    .ev-students { font-size: 0.2rem; color: #777; }
+  }
 
-    .event-lane {
-      display: flex;
-      gap: 0.04rem;
-      margin-bottom: 0.04rem;
-    }
+  .slot-empty {
+    flex: 1;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    min-height: 1rem;
+    color: #ccc;
+    font-size: 0.3rem;
+    cursor: pointer;
+    border: 1px dashed #eee;
+    border-radius: 0.06rem;
 
-    .event-block {
-      flex: 1;
-      padding: 0.04rem 0.08rem;
-      border-radius: 0.06rem;
-      cursor: pointer;
-      overflow: hidden;
-      white-space: nowrap;
-      text-overflow: ellipsis;
-      font-size: 0.22rem;
-      transition: box-shadow 0.15s;
-
-      &:hover {
-        box-shadow: 0 0.04rem 0.12rem rgba(0, 0, 0, 0.15);
-      }
-
-      &--ghost {
-        opacity: 0.6;
-        border-style: dashed;
-      }
-
-      .event-title {
-        font-weight: 500;
-        overflow: hidden;
-        text-overflow: ellipsis;
-        font-size: 0.22rem;
-      }
-
-      .event-meta {
-        font-size: 0.18rem;
-        color: #666;
-        overflow: hidden;
-        text-overflow: ellipsis;
-        white-space: nowrap;
-        line-height: 1.4;
-      }
+    &:hover {
+      background: #f0f5ff;
+      color: #3788d8;
     }
   }
 }