OmniCard/mpuniapp/components/i18n-selector/i18n-selector.uvue

<template>
  <!-- 访客端顶栏/右上角常驻入口：始终可见，不藏二级菜单 -->
  <view class="i18n-selector-wrap i18n-selector-persist" :class="{ 'is-rtl': isCurrentRtl }">
    <!-- 常驻语言切换触发按钮 (触控区 >= 44x44) -->
    <view
      class="i18n-trigger-btn"
      role="button"
      aria-label="Select Language"
      @click="openModal"
    >
      <text class="i18n-trigger-badge">{{ currentShortCode }}</text>
      <text class="i18n-trigger-arrow">▾</text>
    </view>

    <!-- 语言切换浮层面板 (遮罩 + 弹出列表，复用现有 languages / setAppLocale) -->
    <view v-if="visible" class="i18n-modal-mask" @click="closeModal">
      <view class="i18n-modal-container" @click.stop="">
        <!-- 弹窗头部 -->
        <view class="i18n-modal-header">
          <text class="i18n-modal-title">Select Language / 语言设置</text>
          <view class="i18n-modal-close" role="button" aria-label="Close" @click="closeModal">
            <text class="i18n-close-icon">x</text>
          </view>
        </view>

        <!-- 7 大主流语种列表 (含中/英/阿；WCAG 2.2 AA，单行 >= 44px) -->
        <view class="i18n-list">
          <view
            v-for="item in languages"
            :key="item.code"
            class="i18n-item"
            :class="{ 'i18n-item-active': item.code === activeLocale }"
            @click="selectLanguage(item.code)"
          >
            <view class="i18n-item-prefix">
              <text class="i18n-item-badge">{{ item.badge }}</text>
              <text class="i18n-item-name">{{ item.name }}</text>
            </view>
            <view class="i18n-item-check-box">
              <view v-if="item.code === activeLocale" class="i18n-item-check-mark"></view>
            </view>
          </view>
        </view>
      </view>
    </view>
  </view>
</template>

<script setup lang="uts">
import {
  OmniLocale,
  getCurrentLocale,
  setAppLocale,
  isRtlLocale,
} from '../../common/locale.uts';

interface LanguageOption {
  code: OmniLocale;
  name: string;
  badge: string;
}

const emit = defineEmits<{
  (e: 'change', locale: OmniLocale): void
}>();

const props = defineProps({
  modelValue: {
    type: String,
    default: '',
  },
});

const visible = ref<boolean>(false);
const activeLocale = ref<OmniLocale>(
  props.modelValue ? (props.modelValue as OmniLocale) : (getCurrentLocale() as OmniLocale)
);

watch(
  () => props.modelValue,
  (val: string) => {
    if (val && val.trim() !== '') {
      activeLocale.value = val as OmniLocale;
    }
  }
);

const languages: LanguageOption[] = [
  { code: 'zh-CN', name: '简体中文', badge: 'ZH' },
  { code: 'en-US', name: 'English', badge: 'EN' },
  { code: 'ar-SA', name: 'العربية', badge: 'AR' },
  { code: 'es-ES', name: 'Español', badge: 'ES' },
  { code: 'de-DE', name: 'Deutsch', badge: 'DE' },
  { code: 'fr-FR', name: 'Français', badge: 'FR' },
  { code: 'ja-JP', name: '日本語', badge: 'JA' },
];

const currentShortCode = computed((): string => {
  const target = activeLocale.value;
  for (let i = 0; i < languages.length; i++) {
    if (languages[i].code === target) {
      return languages[i].badge;
    }
  }
  return 'EN';
});

const isCurrentRtl = computed((): boolean => {
  return isRtlLocale(activeLocale.value);
});

function openModal(): void {
  visible.value = true;
}

function closeModal(): void {
  visible.value = false;
}

function selectLanguage(code: OmniLocale): void {
  activeLocale.value = code;
  setAppLocale(code);
  emit('change', code);
  closeModal();
}
</script>

<style scoped>
.i18n-selector-wrap {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  position: relative;
  z-index: 20;
}

.i18n-selector-persist {
  /* 顶栏常驻：防止被挤出可视区 */
  flex-shrink: 0;
}

/* 常驻右上角触发胶囊 (触控区 >= 44x44) */
.i18n-trigger-btn {
  min-width: 44px;
  min-height: 44px;
  padding: 0 8px;
  background-color: #FFFFFF;
  border: 1px solid #E3E7ED;
  border-radius: 12px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
  flex-shrink: 0;
}

.i18n-trigger-badge {
  font-size: 13px;
  font-weight: 600;
  color: #101828;
  margin-right: 4px;
}

.i18n-trigger-arrow {
  font-size: 11px;
  color: #667085;
}

/* 浮层遮罩 */
.i18n-modal-mask {
  position: fixed;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(11, 13, 16, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 24px;
}

/* 浮层面板容器 */
.i18n-modal-container {
  width: 100%;
  max-width: 360px;
  background-color: #FFFFFF;
  border: 1px solid #E3E7ED;
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
  display: flex;
  flex-direction: column;
}

.i18n-modal-header {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px solid #E3E7ED;
  margin-bottom: 8px;
}

.i18n-modal-title {
  font-size: 15px;
  font-weight: 600;
  color: #101828;
}

.i18n-modal-close {
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.i18n-close-icon {
  font-size: 14px;
  color: #667085;
}

/* 列表选项 (每行 >= 48px) */
.i18n-list {
  display: flex;
  flex-direction: column;
}

.i18n-item {
  min-height: 48px;
  padding: 0 12px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  border-radius: 12px;
  margin-bottom: 4px;
  background-color: #FFFFFF;
}

.i18n-item-active {
  background-color: #EAF1FF;
}

.i18n-item-prefix {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.i18n-item-badge {
  font-size: 11px;
  font-weight: 700;
  color: #667085;
  background-color: #F7F8FA;
  padding: 2px 6px;
  border-radius: 6px;
  margin-right: 12px;
}

.i18n-item-name {
  font-size: 14px;
  font-weight: 500;
  color: #101828;
}

.i18n-item-active .i18n-item-name {
  color: #0B5CFF;
  font-weight: 600;
}

.i18n-item-check-box {
  min-width: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.i18n-item-check-mark {
  width: 6px;
  height: 12px;
  border-right: 2px solid #0B5CFF;
  border-bottom: 2px solid #0B5CFF;
  transform: rotate(45deg);
  margin-bottom: 4px;
}

/* RTL 适配 */
.is-rtl .i18n-trigger-badge {
  margin-right: 0;
  margin-left: 4px;
}

.is-rtl .i18n-item-badge {
  margin-right: 0;
  margin-left: 12px;
}
</style>