朋友圈导出页新增多选功能

src/components/Sns/SnsFilterPanel.tsx

@@ -29,6 +29,7 @@ interface SnsFilterPanelProps {
     activeContactUsername?: string
     onOpenContactTimeline: (contact: Contact) => void
     onToggleContactSelected: (contact: Contact) => void
+    onToggleFilteredContacts: (usernames: string[], shouldSelect: boolean) => void
     onClearSelectedContacts: () => void
     onExportSelectedContacts: () => void
 }
@@ -46,6 +47,7 @@ export const SnsFilterPanel: React.FC<SnsFilterPanelProps> = ({
     activeContactUsername,
     onOpenContactTimeline,
     onToggleContactSelected,
+    onToggleFilteredContacts,
     onClearSelectedContacts,
     onExportSelectedContacts
 }) => {
@@ -57,6 +59,16 @@ export const SnsFilterPanel: React.FC<SnsFilterPanelProps> = ({
         () => new Set(selectedContactUsernames),
         [selectedContactUsernames]
     )
+    const filteredContactUsernames = React.useMemo(
+        () => filteredContacts.map((contact) => contact.username),
+        [filteredContacts]
+    )
+    const selectedFilteredCount = React.useMemo(
+        () => filteredContactUsernames.filter((username) => selectedContactLookup.has(username)).length,
+        [filteredContactUsernames, selectedContactLookup]
+    )
+    const hasFilteredContacts = filteredContactUsernames.length > 0
+    const allFilteredSelected = hasFilteredContacts && selectedFilteredCount === filteredContactUsernames.length
 
     const clearFilters = () => {
         setSearchKeyword('')
@@ -128,6 +140,20 @@ export const SnsFilterPanel: React.FC<SnsFilterPanelProps> = ({
                         )}
                     </div>
 
+                    <div className="contact-selection-toolbar">
+                        <span className="contact-selection-summary">
+                            当前 {filteredContactUsernames.length} 人，已选 {selectedFilteredCount} 人
+                        </span>
+                        <button
+                            type="button"
+                            className={`contact-selection-toggle${allFilteredSelected ? ' active' : ''}`}
+                            onClick={() => onToggleFilteredContacts(filteredContactUsernames, !allFilteredSelected)}
+                            disabled={!hasFilteredContacts}
+                        >
+                            {allFilteredSelected ? '取消全选' : '全选'}
+                        </button>
+                    </div>
+
                     {contactsCountProgress && contactsCountProgress.total > 0 && (
                         <div className="contact-count-progress">
                             {contactsCountProgress.running

src/pages/SnsPage.scss

@@ -1265,6 +1265,52 @@
             }
         }
 
+        .contact-selection-toolbar {
+            display: flex;
+            align-items: center;
+            justify-content: space-between;
+            gap: 10px;
+            padding: 10px 16px;
+            border-bottom: 1px dashed color-mix(in srgb, var(--border-color) 72%, transparent);
+        }
+
+        .contact-selection-summary {
+            min-width: 0;
+            font-size: 11px;
+            color: var(--text-tertiary);
+            font-variant-numeric: tabular-nums;
+        }
+
+        .contact-selection-toggle {
+            flex-shrink: 0;
+            border: 1px solid color-mix(in srgb, var(--primary) 16%, var(--border-color));
+            background: color-mix(in srgb, var(--bg-primary) 84%, rgba(var(--primary-rgb), 0.08));
+            color: var(--text-secondary);
+            border-radius: 999px;
+            padding: 5px 10px;
+            font-size: 12px;
+            font-weight: 600;
+            line-height: 1.2;
+            cursor: pointer;
+            transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
+
+            &:hover:not(:disabled) {
+                border-color: color-mix(in srgb, var(--primary) 40%, var(--border-color));
+                color: var(--primary);
+            }
+
+            &.active {
+                border-color: color-mix(in srgb, var(--primary) 40%, var(--border-color));
+                background: rgba(var(--primary-rgb), 0.12);
+                color: var(--primary);
+            }
+
+            &:disabled {
+                opacity: 0.45;
+                cursor: not-allowed;
+            }
+        }
+
         .contact-count-progress {
             padding: 8px 16px 10px;
             font-size: 11px;

src/pages/SnsPage.tsx

@@ -1398,6 +1398,24 @@ export default function SnsPage() {
         setSelectedContactUsernames([])
     }, [])
 
+    const toggleSelectFilteredContacts = useCallback((usernames: string[], shouldSelect: boolean) => {
+        const normalizedTargets = Array.from(new Set(
+            usernames
+                .map((username) => String(username || '').trim())
+                .filter(Boolean)
+        ))
+        if (normalizedTargets.length === 0) return
+
+        setSelectedContactUsernames((prev) => {
+            if (shouldSelect) {
+                const next = new Set(prev)
+                normalizedTargets.forEach((username) => next.add(username))
+                return Array.from(next)
+            }
+            return prev.filter((username) => !normalizedTargets.includes(username))
+        })
+    }, [])
+
     const openSelectedContactsExport = useCallback(() => {
         if (selectedContactUsernames.length === 0) return
         openExportDialog({ kind: 'selected', usernames: [...selectedContactUsernames] })
@@ -1783,6 +1801,7 @@ export default function SnsPage() {
                 activeContactUsername={authorTimelineTarget?.username}
                 onOpenContactTimeline={openContactTimeline}
                 onToggleContactSelected={toggleContactSelected}
+                onToggleFilteredContacts={toggleSelectFilteredContacts}
                 onClearSelectedContacts={clearSelectedContacts}
                 onExportSelectedContacts={openSelectedContactsExport}
             />