feat: 增强前端clipboard功能

frontend/src/components/account/AccountTestModal.vue

@@ -280,10 +280,12 @@
 import { ref, watch, nextTick } from 'vue'
 import { useI18n } from 'vue-i18n'
 import Modal from '@/components/common/Modal.vue'
+import { useClipboard } from '@/composables/useClipboard'
 import { adminAPI } from '@/api/admin'
 import type { Account, ClaudeModel } from '@/types'
 
 const { t } = useI18n()
+const { copyToClipboard } = useClipboard()
 
 interface OutputLine {
   text: string
@@ -501,6 +503,6 @@ const handleEvent = (event: {
 
 const copyOutput = () => {
   const text = outputLines.value.map((l) => l.text).join('\n')
-  navigator.clipboard.writeText(text)
+  copyToClipboard(text, t('admin.accounts.outputCopied'))
 }
 </script>

frontend/src/components/keys/UseKeyModal.vue

@@ -119,7 +119,7 @@
 import { ref, computed, h, watch, type Component } from 'vue'
 import { useI18n } from 'vue-i18n'
 import Modal from '@/components/common/Modal.vue'
-import { useAppStore } from '@/stores/app'
+import { useClipboard } from '@/composables/useClipboard'
 import type { GroupPlatform } from '@/types'
 
 interface Props {
@@ -150,7 +150,7 @@ const props = defineProps<Props>()
 const emit = defineEmits<Emits>()
 
 const { t } = useI18n()
-const appStore = useAppStore()
+const { copyToClipboard: clipboardCopy } = useClipboard()
 
 const copiedIndex = ref<number | null>(null)
 const activeTab = ref<string>('unix')
@@ -340,14 +340,12 @@ ${key('requires_openai_auth')} ${operator('=')} ${keyword('true')}`
 }
 
 const copyContent = async (content: string, index: number) => {
-  try {
-    await navigator.clipboard.writeText(content)
+  const success = await clipboardCopy(content, t('keys.copied'))
+  if (success) {
     copiedIndex.value = index
     setTimeout(() => {
       copiedIndex.value = null
     }, 2000)
-  } catch (error) {
-    appStore.showError(t('common.copyFailed'))
   }
 }
 </script>

frontend/src/composables/useClipboard.ts

 import { ref } from 'vue'
 import { useAppStore } from '@/stores/app'
 
+/**
+ * 检测是否支持 Clipboard API（需要安全上下文：HTTPS/localhost）
+ */
+function isClipboardSupported(): boolean {
+  return !!(navigator.clipboard && window.isSecureContext)
+}
+
+/**
+ * 降级方案：使用 textarea + execCommand
+ * 使用 textarea 而非 input，以正确处理多行文本
+ */
+function fallbackCopy(text: string): boolean {
+  const textarea = document.createElement('textarea')
+  textarea.value = text
+  textarea.style.cssText = 'position:fixed;left:-9999px;top:-9999px'
+  document.body.appendChild(textarea)
+  textarea.select()
+  try {
+    return document.execCommand('copy')
+  } finally {
+    document.body.removeChild(textarea)
+  }
+}
+
 export function useClipboard() {
   const appStore = useAppStore()
   const copied = ref(false)
 
-  const copyToClipboard = async (text: string, successMessage = 'Copied to clipboard') => {
+  const copyToClipboard = async (
+    text: string,
+    successMessage = 'Copied to clipboard'
+  ): Promise<boolean> => {
     if (!text) return false
 
-    try {
-      await navigator.clipboard.writeText(text)
-      copied.value = true
-      appStore.showSuccess(successMessage)
-      setTimeout(() => {
-        copied.value = false
-      }, 2000)
-      return true
-    } catch {
-      // Fallback for older browsers
-      const input = document.createElement('input')
-      input.value = text
-      document.body.appendChild(input)
-      input.select()
-      document.execCommand('copy')
-      document.body.removeChild(input)
+    let success = false
+
+    if (isClipboardSupported()) {
+      try {
+        await navigator.clipboard.writeText(text)
+        success = true
+      } catch {
+        success = fallbackCopy(text)
+      }
+    } else {
+      success = fallbackCopy(text)
+    }
+
+    if (success) {
       copied.value = true
       appStore.showSuccess(successMessage)
       setTimeout(() => {
         copied.value = false
       }, 2000)
-      return true
+    } else {
+      appStore.showError('Copy failed')
     }
-  }
 
-  return {
-    copied,
-    copyToClipboard
+    return success
   }
+
+  return { copied, copyToClipboard }
 }

frontend/src/views/admin/RedeemView.vue

@@ -418,6 +418,7 @@
 import { ref, reactive, computed, onMounted } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
+import { useClipboard } from '@/composables/useClipboard'
 import { adminAPI } from '@/api/admin'
 import { formatDateTime } from '@/utils/format'
 import type { RedeemCode, RedeemCodeType, Group } from '@/types'
@@ -431,6 +432,7 @@ import Select from '@/components/common/Select.vue'
 
 const { t } = useI18n()
 const appStore = useAppStore()
+const { copyToClipboard: clipboardCopy } = useClipboard()
 
 const showGenerateDialog = ref(false)
 const showResultDialog = ref(false)
@@ -618,15 +620,12 @@ const handleGenerateCodes = async () => {
 }
 
 const copyToClipboard = async (text: string) => {
-  try {
-    await navigator.clipboard.writeText(text)
+  const success = await clipboardCopy(text, t('admin.redeem.copied'))
+  if (success) {
     copiedCode.value = text
     setTimeout(() => {
       copiedCode.value = null
     }, 2000)
-  } catch (error) {
-    appStore.showError(t('admin.redeem.failedToCopy'))
-    console.error('Error copying to clipboard:', error)
   }
 }
 

frontend/src/views/admin/UsersView.vue

@@ -1173,6 +1173,7 @@
 import { ref, reactive, computed, onMounted } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
+import { useClipboard } from '@/composables/useClipboard'
 import { formatDateTime } from '@/utils/format'
 
 const { t } = useI18n()
@@ -1191,6 +1192,7 @@ import Select from '@/components/common/Select.vue'
 import GroupBadge from '@/components/common/GroupBadge.vue'
 
 const appStore = useAppStore()
+const { copyToClipboard: clipboardCopy } = useClipboard()
 
 const columns = computed<Column[]>(() => [
   { key: 'email', label: t('admin.users.columns.user'), sortable: true },
@@ -1312,27 +1314,23 @@ const generateEditPassword = () => {
 
 const copyPassword = async () => {
   if (!createForm.password) return
-  try {
-    await navigator.clipboard.writeText(createForm.password)
+  const success = await clipboardCopy(createForm.password, t('admin.users.passwordCopied'))
+  if (success) {
     passwordCopied.value = true
     setTimeout(() => {
       passwordCopied.value = false
     }, 2000)
-  } catch (error) {
-    appStore.showError(t('common.copyFailed'))
   }
 }
 
 const copyEditPassword = async () => {
   if (!editForm.password) return
-  try {
-    await navigator.clipboard.writeText(editForm.password)
+  const success = await clipboardCopy(editForm.password, t('admin.users.passwordCopied'))
+  if (success) {
     editPasswordCopied.value = true
     setTimeout(() => {
       editPasswordCopied.value = false
     }, 2000)
-  } catch (error) {
-    appStore.showError(t('common.copyFailed'))
   }
 }
 

frontend/src/views/user/KeysView.vue

@@ -493,6 +493,7 @@
 import { ref, computed, onMounted, onUnmounted, type ComponentPublicInstance } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
+import { useClipboard } from '@/composables/useClipboard'
 
 const { t } = useI18n()
 import { keysAPI, authAPI, usageAPI, userGroupsAPI } from '@/api'
@@ -520,6 +521,7 @@ interface GroupOption {
 }
 
 const appStore = useAppStore()
+const { copyToClipboard: clipboardCopy } = useClipboard()
 
 const columns = computed<Column[]>(() => [
   { key: 'name', label: t('common.name'), sortable: true },
@@ -616,14 +618,12 @@ const maskKey = (key: string): string => {
 }
 
 const copyToClipboard = async (text: string, keyId: number) => {
-  try {
-    await navigator.clipboard.writeText(text)
+  const success = await clipboardCopy(text, t('keys.copied'))
+  if (success) {
     copiedKeyId.value = keyId
     setTimeout(() => {
       copiedKeyId.value = null
     }, 2000)
-  } catch (error) {
-    appStore.showError(t('common.copyFailed'))
   }
 }