From 43ddf589a32385d493b56513183394824d863bdd Mon Sep 17 00:00:00 2001
From: Boen_Shi <boen.shi@qq.com>
Date: Thu, 25 Jun 2026 21:05:39 +0800
Subject: [PATCH] Polish quiz navigation and submission flow

---
 frontend/src/views/app/QuizView.vue | 333 ++++++++++++++++++++++------
 1 file changed, 265 insertions(+), 68 deletions(-)

diff --git a/frontend/src/views/app/QuizView.vue b/frontend/src/views/app/QuizView.vue
index 5f314b2..9687887 100644
--- a/frontend/src/views/app/QuizView.vue
+++ b/frontend/src/views/app/QuizView.vue
@@ -1,8 +1,8 @@
 <script setup lang="ts">
 import { computed, onBeforeUnmount, onMounted, shallowRef, watch } from 'vue'
 import { onBeforeRouteLeave, useRoute, useRouter } from 'vue-router'
-import { ElMessage } from 'element-plus'
-import { Grid } from '@element-plus/icons-vue'
+import { ElMessage, ElMessageBox } from 'element-plus'
+import { ArrowLeft, ArrowRight, Finished, Grid, House } from '@element-plus/icons-vue'
 import { useQuizStore } from '@/stores/quiz'
 
 const route = useRoute()
@@ -17,6 +17,7 @@ const autoSubmitting = shallowRef(false)
 const loadingAttempt = shallowRef(true)
 const touchStartX = shallowRef(0)
 const touchStartY = shallowRef(0)
+const slideName = shallowRef('slide-next')
 let timer: number | undefined
 let positionTimer: number | undefined
 
@@ -47,6 +48,8 @@ const displaySelected = computed(() => {
 const singleDisplaySelected = computed(() => displaySelected.value[0])
 const showConfirmAnswer = computed(() => quiz.attempt?.status === 'in_progress' && (isMultiple.value || isBlank.value) && !showAnswer.value)
 const optionsLocked = computed(() => quiz.attempt?.status !== 'in_progress' || showAnswer.value)
+const isFirstQuestion = computed(() => quiz.currentIndex === 0)
+const isLastQuestion = computed(() => !quiz.attempt || quiz.currentIndex >= quiz.attempt.items.length - 1)
 
 function optionClass(option: { id: number; is_correct: boolean }) {
   if (!showAnswer.value) return ''
@@ -85,6 +88,7 @@ async function selectSingle(optionId: number) {
 
 async function go(index: number) {
   if (!quiz.attempt || index < 0 || index >= quiz.attempt.items.length) return
+  slideName.value = index > quiz.currentIndex ? 'slide-next' : 'slide-prev'
   quiz.setPosition(index)
   syncLocalAnswer()
   sheetOpen.value = false
@@ -113,6 +117,17 @@ function handleTouchEnd(event: TouchEvent) {
 
 async function submitPaper(auto = false) {
   if (!quiz.attempt || quiz.attempt.status !== 'in_progress') return
+  if (!auto) {
+    try {
+      await ElMessageBox.confirm('提交后将完成本次练习，确认提交吗？', '提交确认', {
+        type: 'warning',
+        confirmButtonText: '确认提交',
+        cancelButtonText: '取消',
+      })
+    } catch {
+      return
+    }
+  }
   await quiz.savePosition(quiz.currentIndex, true).catch(() => undefined)
   await quiz.submit()
   ElMessage.success(auto ? '时间到，已自动完成' : '练习已完成')
@@ -170,70 +185,93 @@ watch(remainingSeconds, async (value) => {
 <template>
   <main class="quiz-page" v-if="!loadingAttempt && quiz.attempt && item">
     <section class="question-panel" @touchstart.passive="handleTouchStart" @touchend.passive="handleTouchEnd">
-      <div class="question-meta">
-        <div class="meta-left">
-          <ElTag>{{ typeLabel }}</ElTag>
-          <span>{{ quiz.currentIndex + 1 }} / {{ quiz.attempt.total_questions }}</span>
-        </div>
-        <div class="timer" :class="{ 'timer--danger': remainingSeconds !== null && remainingSeconds <= 60 }">
-          {{ remainingLabel }}
-        </div>
-      </div>
-      <h1>{{ item.question.content }}</h1>
+      <Transition :name="slideName" mode="out-in">
+        <article :key="item.id" class="question-slide">
+          <div class="question-meta">
+            <div class="meta-left">
+              <ElTag>{{ typeLabel }}</ElTag>
+              <span>{{ quiz.currentIndex + 1 }} / {{ quiz.attempt.total_questions }}</span>
+            </div>
+            <div class="timer" :class="{ 'timer--danger': remainingSeconds !== null && remainingSeconds <= 60 }">
+              {{ remainingLabel }}
+            </div>
+          </div>
+          <h1>{{ item.question.content }}</h1>
 
-      <ElCheckboxGroup v-if="isMultiple" :model-value="displaySelected" class="option-list" @change="updateSelected">
-        <ElCheckbox
-          v-for="option in item.question.options"
-          :key="option.id"
-          :value="option.id"
-          :class="optionClass(option)"
-          :disabled="optionsLocked"
-          border
-        >
-          {{ option.content }}
-        </ElCheckbox>
-      </ElCheckboxGroup>
-      <ElInput
-        v-else-if="isBlank"
-        v-model="blankAnswer"
-        class="blank-input"
-        type="textarea"
-        :rows="4"
-        :disabled="optionsLocked"
-        placeholder="请输入答案"
-      />
-      <ElRadioGroup v-else :model-value="singleDisplaySelected" class="option-list">
-        <ElRadio
-          v-for="option in item.question.options"
-          :key="option.id"
-          :value="option.id"
-          :class="optionClass(option)"
-          :disabled="optionsLocked"
-          border
-          @click="selectSingle(option.id)"
-        >
-          {{ option.content }}
-        </ElRadio>
-      </ElRadioGroup>
+          <ElCheckboxGroup v-if="isMultiple" :model-value="displaySelected" class="option-list" @change="updateSelected">
+            <ElCheckbox
+              v-for="option in item.question.options"
+              :key="option.id"
+              :value="option.id"
+              :class="optionClass(option)"
+              :disabled="optionsLocked"
+              border
+            >
+              {{ option.content }}
+            </ElCheckbox>
+          </ElCheckboxGroup>
+          <ElInput
+            v-else-if="isBlank"
+            v-model="blankAnswer"
+            class="blank-input"
+            type="textarea"
+            :rows="4"
+            :disabled="optionsLocked"
+            placeholder="请输入答案"
+          />
+          <ElRadioGroup v-else :model-value="singleDisplaySelected" class="option-list">
+            <ElRadio
+              v-for="option in item.question.options"
+              :key="option.id"
+              :value="option.id"
+              :class="optionClass(option)"
+              :disabled="optionsLocked"
+              border
+              @click="selectSingle(option.id)"
+            >
+              {{ option.content }}
+            </ElRadio>
+          </ElRadioGroup>
 
-      <section v-if="showAnswer" class="answer-panel">
-        <strong>答案与解析</strong>
-        <p v-if="item.question.type === 'blank'">正确答案：{{ item.question.answers?.join('、') || '暂无标准答案' }}</p>
-        <p>{{ item.question.explanation || '暂无解析' }}</p>
-      </section>
+          <section v-if="showAnswer" class="answer-panel">
+            <strong>答案与解析</strong>
+            <p v-if="item.question.type === 'blank'">正确答案：{{ item.question.answers?.join('、') || '暂无标准答案' }}</p>
+            <p>{{ item.question.explanation || '暂无解析' }}</p>
+          </section>
+        </article>
+      </Transition>
     </section>
 
     <footer class="quiz-footer">
-      <ElButton :icon="Grid" circle @click="sheetOpen = true" />
-      <ElButton plain @click="router.push('/quiz')">返回</ElButton>
-      <ElButton :disabled="quiz.currentIndex === 0" @click="go(quiz.currentIndex - 1)">上一题</ElButton>
-      <ElButton v-if="showConfirmAnswer" type="primary" @click="submitAnswer">
-        确认本题
-      </ElButton>
-      <ElButton :disabled="quiz.currentIndex >= quiz.attempt.items.length - 1" @click="go(quiz.currentIndex + 1)">下一题</ElButton>
-      <ElButton plain :disabled="quiz.attempt.status !== 'in_progress'" @click="submitPaper(false)">
-        {{ quiz.attempt.status === 'submitted' ? '已完成' : '完成练习' }}
-      </ElButton>
+      <div class="footer-inner">
+        <div class="footer-group footer-group--left">
+          <ElButton class="footer-icon footer-home" :icon="House" circle @click="router.push('/quiz')" />
+          <ElButton class="footer-nav footer-prev" :icon="ArrowLeft" :disabled="isFirstQuestion" @click="go(quiz.currentIndex - 1)">
+            上一题
+          </ElButton>
+        </div>
+        <div class="footer-group footer-group--center">
+          <ElButton class="footer-icon footer-sheet" :icon="Grid" circle @click="sheetOpen = true" />
+        </div>
+        <div class="footer-group footer-group--right">
+          <ElButton class="footer-nav footer-next" type="primary" plain :disabled="isLastQuestion" @click="go(quiz.currentIndex + 1)">
+            下一题
+            <ElIcon class="footer-nav-icon"><ArrowRight /></ElIcon>
+          </ElButton>
+          <ElButton v-if="showConfirmAnswer" class="footer-primary" type="primary" @click="submitAnswer">
+            确认本题
+          </ElButton>
+          <ElButton
+            class="footer-finish"
+            :class="{ 'footer-finish--defer': showConfirmAnswer }"
+            :icon="Finished"
+            :disabled="quiz.attempt.status !== 'in_progress'"
+            @click="submitPaper(false)"
+          >
+            {{ quiz.attempt.status === 'submitted' ? '已提交' : '提交' }}
+          </ElButton>
+        </div>
+      </div>
     </footer>
 
     <ElDrawer v-model="sheetOpen" title="答题卡" direction="btt" size="48%">
@@ -274,6 +312,11 @@ watch(remainingSeconds, async (value) => {
   margin: 0 auto;
   padding: 24px 16px 120px;
   touch-action: pan-y;
+  overflow: hidden;
+}
+
+.question-slide {
+  min-height: 360px;
 }
 
 .question-meta {
@@ -393,15 +436,98 @@ watch(remainingSeconds, async (value) => {
   left: 0;
   right: 0;
   bottom: 0;
-  display: flex;
-  justify-content: center;
-  gap: 10px;
-  padding: 12px;
+  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
   border-top: 1px solid var(--qq-line);
   background: rgba(247, 248, 244, 0.9);
   backdrop-filter: blur(10px);
 }
 
+.footer-inner {
+  width: fit-content;
+  max-width: 100%;
+  min-height: 52px;
+  margin: 0 auto;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 10px;
+  padding: 8px;
+  border: 1px solid rgba(223, 229, 221, 0.9);
+  border-radius: 16px;
+  background: rgba(255, 255, 255, 0.48);
+  box-shadow: 0 10px 28px rgba(23, 33, 27, 0.08);
+}
+
+.footer-inner :deep(.el-button),
+.footer-group :deep(.el-button) {
+  margin-left: 0;
+}
+
+.footer-group {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+}
+
+.footer-icon {
+  width: 44px;
+  height: 44px;
+  background: rgba(255, 255, 255, 0.62);
+}
+
+.footer-nav,
+.footer-primary,
+.footer-finish {
+  height: 44px;
+  border-radius: 8px;
+  font-weight: 700;
+}
+
+.footer-nav {
+  width: 138px;
+}
+
+.footer-primary {
+  width: 132px;
+}
+
+.footer-finish {
+  width: 96px;
+}
+
+.footer-primary {
+  box-shadow: 0 8px 18px rgba(31, 111, 91, 0.18);
+}
+
+.footer-finish {
+  background: rgba(255, 255, 255, 0.62);
+}
+
+.footer-nav-icon {
+  margin-left: 4px;
+}
+
+.slide-next-enter-active,
+.slide-next-leave-active,
+.slide-prev-enter-active,
+.slide-prev-leave-active {
+  transition:
+    transform 220ms ease,
+    opacity 180ms ease;
+}
+
+.slide-next-enter-from,
+.slide-prev-leave-to {
+  opacity: 0;
+  transform: translateX(42px);
+}
+
+.slide-next-leave-to,
+.slide-prev-enter-from {
+  opacity: 0;
+  transform: translateX(-42px);
+}
+
 .answer-sheet {
   display: grid;
   grid-template-columns: repeat(auto-fill, minmax(42px, 1fr));
@@ -436,7 +562,7 @@ watch(remainingSeconds, async (value) => {
 
 @media (max-width: 640px) {
   .question-panel {
-    padding: 18px 12px 118px;
+    padding: 18px 12px 132px;
   }
 
   .question-panel h1 {
@@ -444,8 +570,79 @@ watch(remainingSeconds, async (value) => {
   }
 
   .quiz-footer {
-    justify-content: flex-start;
-    overflow-x: auto;
+    padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
+  }
+
+  .footer-inner {
+    width: 100%;
+    display: grid;
+    grid-template-columns: 42px minmax(0, 1fr) minmax(0, 1fr) 42px;
+    grid-template-areas:
+      "home prev next sheet"
+      "finish finish finish finish";
+    gap: 8px;
+    padding: 0;
+    border: 0;
+    border-radius: 0;
+    background: transparent;
+    box-shadow: none;
+  }
+
+  .footer-group {
+    display: contents;
+  }
+
+  .footer-icon {
+    width: 42px;
+    height: 42px;
+  }
+
+  .footer-home {
+    grid-area: home;
+  }
+
+  .footer-sheet {
+    grid-area: sheet;
+  }
+
+  .footer-nav {
+    width: 100%;
+    height: 42px;
+  }
+
+  .footer-prev {
+    grid-area: prev;
+  }
+
+  .footer-next {
+    grid-area: next;
+  }
+
+  .footer-primary {
+    grid-area: finish;
+    width: 100%;
+    height: 42px;
+    min-width: 0;
+    padding-inline: 10px;
+  }
+
+  .footer-finish {
+    grid-area: finish;
+    width: 100%;
+    height: 40px;
+  }
+
+  .footer-finish--defer {
+    display: none;
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .slide-next-enter-active,
+  .slide-next-leave-active,
+  .slide-prev-enter-active,
+  .slide-prev-leave-active {
+    transition: none;
   }
 }
 </style>