From 36721575a519591979d06c4da86756526b716263 Mon Sep 17 00:00:00 2001
From: curo1305 <curo1305@proton.me>
Date: Mon, 25 May 2026 22:10:23 +0200
Subject: [PATCH] =?UTF-8?q?feat(phase-4-09):=20create=20new=20components?=
 =?UTF-8?q?=20=E2=80=94=20FolderRow,=20FolderBreadcrumb,=20FolderDeleteMod?=
 =?UTF-8?q?al,=20ShareModal,=20DocumentPreviewModal,=20SearchBar,=20SortCo?=
 =?UTF-8?q?ntrols,=20AuditLogTab?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- FolderRow: inline rename, three-dot menu, delete/rename callbacks, outside-click close
- FolderBreadcrumb: truncation at depth > 4, nav aria-label, ol structure
- FolderDeleteModal: role=dialog, warning icon, doc count in body, Keep/Delete buttons
- ShareModal: handle input, recipients list with revoke, 404/409 error handling
- DocumentPreviewModal: iframe with proxy URL only (never presigned), Escape/overlay close
- SearchBar: role=search, aria-label, Escape clears
- SortControls: aria-pressed, direction indicator, toggle vs switch logic
- AuditLogTab: filters, paginated table, CSV export via window.location.href
- api/client.js: add adminListAuditLog function
---
 frontend/src/api/client.js                    |  13 ++
 frontend/src/components/admin/AuditLogTab.vue | 212 ++++++++++++++++++
 .../documents/DocumentPreviewModal.vue        |  71 ++++++
 .../src/components/documents/SearchBar.vue    |  28 +++
 .../src/components/documents/SortControls.vue |  49 ++++
 .../components/folders/FolderBreadcrumb.vue   |  68 ++++++
 .../components/folders/FolderDeleteModal.vue  |  81 +++++++
 frontend/src/components/folders/FolderRow.vue | 161 +++++++++++++
 .../src/components/sharing/ShareModal.vue     | 162 +++++++++++++
 9 files changed, 845 insertions(+)
 create mode 100644 frontend/src/components/admin/AuditLogTab.vue
 create mode 100644 frontend/src/components/documents/DocumentPreviewModal.vue
 create mode 100644 frontend/src/components/documents/SearchBar.vue
 create mode 100644 frontend/src/components/documents/SortControls.vue
 create mode 100644 frontend/src/components/folders/FolderBreadcrumb.vue
 create mode 100644 frontend/src/components/folders/FolderDeleteModal.vue
 create mode 100644 frontend/src/components/folders/FolderRow.vue
 create mode 100644 frontend/src/components/sharing/ShareModal.vue

diff --git a/frontend/src/api/client.js b/frontend/src/api/client.js
index 985481c..d69cc2b 100644
--- a/frontend/src/api/client.js
+++ b/frontend/src/api/client.js
@@ -345,6 +345,19 @@ export function updateMyPreferences(payload) {
   })
 }
 
+// ── Audit Log ─────────────────────────────────────────────────────────────────
+
+export function adminListAuditLog({ start, end, user_id, event_type, page = 1, per_page = 50 } = {}) {
+  const params = new URLSearchParams()
+  if (start) params.set('start', start)
+  if (end) params.set('end', end)
+  if (user_id) params.set('user_id', user_id)
+  if (event_type) params.set('event_type', event_type)
+  params.set('page', page)
+  params.set('per_page', per_page)
+  return request(`/api/admin/audit-log?${params}`)
+}
+
 // ── Document content proxy URL ────────────────────────────────────────────────
 
 export function getDocumentContentUrl(docId) {
diff --git a/frontend/src/components/admin/AuditLogTab.vue b/frontend/src/components/admin/AuditLogTab.vue
new file mode 100644
index 0000000..95fedea
--- /dev/null
+++ b/frontend/src/components/admin/AuditLogTab.vue
@@ -0,0 +1,212 @@
+<template>
+  <div>
+    <!-- Filter bar -->
+    <div class="flex flex-wrap gap-3 mb-4 items-end">
+      <div>
+        <label class="block text-xs font-semibold text-gray-500 mb-1">From</label>
+        <input
+          v-model="filters.start"
+          type="date"
+          class="text-sm border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:ring-2 focus:ring-indigo-500"
+        />
+      </div>
+      <div>
+        <label class="block text-xs font-semibold text-gray-500 mb-1">To</label>
+        <input
+          v-model="filters.end"
+          type="date"
+          class="text-sm border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:ring-2 focus:ring-indigo-500"
+        />
+      </div>
+      <div>
+        <label class="block text-xs font-semibold text-gray-500 mb-1">User</label>
+        <input
+          v-model="filters.user_id"
+          type="text"
+          placeholder="All users"
+          class="text-sm border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:ring-2 focus:ring-indigo-500 w-36"
+        />
+      </div>
+      <div>
+        <label class="block text-xs font-semibold text-gray-500 mb-1">Action</label>
+        <select
+          v-model="filters.event_type"
+          class="text-sm border border-gray-300 rounded-lg px-3 py-2 focus:outline-none focus:ring-2 focus:ring-indigo-500 bg-white"
+        >
+          <option value="">All actions</option>
+          <option value="auth">Auth</option>
+          <option value="document">Document</option>
+          <option value="folder">Folder</option>
+          <option value="share">Share</option>
+          <option value="admin">Admin</option>
+        </select>
+      </div>
+      <button
+        @click="applyFilters"
+        class="bg-indigo-600 text-white text-sm px-4 py-2 rounded-lg hover:bg-indigo-700 transition-colors"
+      >
+        Apply filters
+      </button>
+      <button
+        @click="exportCsv"
+        class="border border-gray-300 text-gray-700 text-sm px-4 py-2 rounded-lg hover:bg-gray-50 transition-colors"
+      >
+        Export CSV
+      </button>
+    </div>
+
+    <!-- Loading state -->
+    <div v-if="loading" class="bg-white rounded-xl border border-gray-200 p-8 text-center">
+      <div class="flex items-center justify-center gap-2 text-gray-400 text-sm">
+        <span class="animate-spin rounded-full border-2 border-current border-t-transparent w-4 h-4"></span>
+        Loading audit log…
+      </div>
+    </div>
+
+    <!-- Empty state -->
+    <div v-else-if="entries.length === 0" class="text-center py-12 text-gray-400 text-sm">
+      No audit log entries match the selected filters.
+    </div>
+
+    <!-- Table -->
+    <div v-else class="bg-white rounded-xl border border-gray-200 overflow-hidden">
+      <table class="w-full text-sm border-collapse">
+        <thead>
+          <tr class="bg-gray-50 border-b border-gray-200">
+            <th scope="col" class="px-4 py-3 text-left text-xs font-semibold text-gray-400 uppercase tracking-wider">Timestamp</th>
+            <th scope="col" class="px-4 py-3 text-left text-xs font-semibold text-gray-400 uppercase tracking-wider">User</th>
+            <th scope="col" class="px-4 py-3 text-left text-xs font-semibold text-gray-400 uppercase tracking-wider">Action Type</th>
+            <th scope="col" class="px-4 py-3 text-left text-xs font-semibold text-gray-400 uppercase tracking-wider">IP Address</th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr
+            v-for="entry in entries"
+            :key="entry.id"
+            class="border-b border-gray-100 hover:bg-gray-50 transition-colors"
+          >
+            <td class="px-4 py-3 font-mono text-xs text-gray-500">{{ formatTimestamp(entry.created_at) }}</td>
+            <td class="px-4 py-3 text-sm text-gray-700">{{ entry.user_handle || entry.user_id || '—' }}</td>
+            <td class="px-4 py-3">
+              <span
+                class="text-xs px-2 py-1 rounded-full font-medium"
+                :class="actionTypeClass(entry.event_type)"
+              >
+                {{ entry.event_type }}
+              </span>
+            </td>
+            <td class="px-4 py-3 text-sm text-gray-700 font-mono text-xs">{{ entry.ip_address || '—' }}</td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+
+    <!-- Pagination -->
+    <div v-if="!loading && entries.length > 0" class="flex items-center justify-between mt-4">
+      <button
+        @click="prevPage"
+        :disabled="page <= 1"
+        class="text-sm text-gray-600 hover:text-gray-900 disabled:opacity-40 disabled:cursor-not-allowed px-3 py-1.5 border border-gray-200 rounded-lg hover:bg-gray-50 transition-colors"
+      >
+        Previous
+      </button>
+      <span class="text-sm text-gray-500">Page {{ page }}</span>
+      <button
+        @click="nextPage"
+        :disabled="entries.length < perPage"
+        class="text-sm text-gray-600 hover:text-gray-900 disabled:opacity-40 disabled:cursor-not-allowed px-3 py-1.5 border border-gray-200 rounded-lg hover:bg-gray-50 transition-colors"
+      >
+        Next
+      </button>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref, reactive, onMounted } from 'vue'
+import * as api from '../../api/client.js'
+
+const entries = ref([])
+const total = ref(0)
+const page = ref(1)
+const perPage = 50
+const loading = ref(false)
+
+const filters = reactive({
+  start: '',
+  end: '',
+  user_id: '',
+  event_type: '',
+})
+
+onMounted(() => {
+  fetchLog()
+})
+
+async function fetchLog() {
+  loading.value = true
+  try {
+    const data = await api.adminListAuditLog({
+      start: filters.start || undefined,
+      end: filters.end || undefined,
+      user_id: filters.user_id || undefined,
+      event_type: filters.event_type || undefined,
+      page: page.value,
+      per_page: perPage,
+    })
+    entries.value = Array.isArray(data) ? data : (data.items ?? [])
+    total.value = data.total ?? entries.value.length
+  } catch (e) {
+    entries.value = []
+  } finally {
+    loading.value = false
+  }
+}
+
+function applyFilters() {
+  page.value = 1
+  fetchLog()
+}
+
+function prevPage() {
+  if (page.value > 1) {
+    page.value--
+    fetchLog()
+  }
+}
+
+function nextPage() {
+  if (entries.value.length >= perPage) {
+    page.value++
+    fetchLog()
+  }
+}
+
+function exportCsv() {
+  const params = new URLSearchParams({ format: 'csv' })
+  if (filters.start) params.set('start', filters.start)
+  if (filters.end) params.set('end', filters.end)
+  if (filters.user_id) params.set('user_id', filters.user_id)
+  if (filters.event_type) params.set('event_type', filters.event_type)
+  window.location.href = `/api/admin/audit-log/export?${params}`
+}
+
+function formatTimestamp(iso) {
+  if (!iso) return '—'
+  try {
+    return new Date(iso).toISOString().replace('T', ' ').slice(0, 19)
+  } catch {
+    return iso
+  }
+}
+
+function actionTypeClass(eventType) {
+  if (!eventType) return 'bg-gray-100 text-gray-600'
+  const t = eventType.toLowerCase()
+  if (t.startsWith('auth')) return 'bg-blue-50 text-blue-600'
+  if (t.startsWith('document')) return 'bg-gray-100 text-gray-600'
+  if (t.startsWith('folder') || t.startsWith('share')) return 'bg-purple-50 text-purple-600'
+  if (t.startsWith('admin')) return 'bg-amber-50 text-amber-700'
+  return 'bg-gray-100 text-gray-600'
+}
+</script>
diff --git a/frontend/src/components/documents/DocumentPreviewModal.vue b/frontend/src/components/documents/DocumentPreviewModal.vue
new file mode 100644
index 0000000..50128aa
--- /dev/null
+++ b/frontend/src/components/documents/DocumentPreviewModal.vue
@@ -0,0 +1,71 @@
+<template>
+  <!-- Overlay -->
+  <div
+    ref="overlayRef"
+    class="fixed inset-0 bg-black/60 z-50 flex flex-col"
+    role="dialog"
+    aria-modal="true"
+    aria-label="Document preview"
+    @click="handleOverlayClick"
+  >
+    <!-- Header bar -->
+    <div class="bg-white border-b border-gray-200 px-6 py-3 flex items-center justify-between shrink-0">
+      <span class="text-sm font-medium text-gray-900 truncate max-w-xs">{{ doc.filename || doc.original_name }}</span>
+      <button
+        @click="emit('close')"
+        aria-label="Close preview"
+        class="text-gray-400 hover:text-gray-600 transition-colors ml-4 shrink-0"
+      >
+        <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
+        </svg>
+      </button>
+    </div>
+
+    <!-- iframe content -->
+    <div class="flex-1 overflow-hidden">
+      <iframe
+        class="w-full h-full border-0"
+        :src="proxyUrl"
+        title="Document preview"
+      ></iframe>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref, computed, onMounted, onUnmounted } from 'vue'
+
+const props = defineProps({
+  doc: {
+    type: Object,
+    required: true,
+  },
+})
+
+const emit = defineEmits(['close'])
+
+const overlayRef = ref(null)
+
+const proxyUrl = computed(() => `/api/documents/${props.doc.id}/content`)
+
+function handleOverlayClick(e) {
+  if (e.target === overlayRef.value) {
+    emit('close')
+  }
+}
+
+function handleKeydown(e) {
+  if (e.key === 'Escape') {
+    emit('close')
+  }
+}
+
+onMounted(() => {
+  document.addEventListener('keydown', handleKeydown)
+})
+
+onUnmounted(() => {
+  document.removeEventListener('keydown', handleKeydown)
+})
+</script>
diff --git a/frontend/src/components/documents/SearchBar.vue b/frontend/src/components/documents/SearchBar.vue
new file mode 100644
index 0000000..f05f7e1
--- /dev/null
+++ b/frontend/src/components/documents/SearchBar.vue
@@ -0,0 +1,28 @@
+<template>
+  <div role="search">
+    <input
+      :value="modelValue"
+      type="search"
+      :placeholder="placeholder"
+      aria-label="Search documents"
+      class="border border-gray-300 rounded-lg px-3 py-2 text-sm w-56 focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-transparent"
+      @input="emit('update:modelValue', $event.target.value)"
+      @keydown.escape="emit('update:modelValue', '')"
+    />
+  </div>
+</template>
+
+<script setup>
+defineProps({
+  modelValue: {
+    type: String,
+    default: '',
+  },
+  placeholder: {
+    type: String,
+    default: 'Search documents...',
+  },
+})
+
+const emit = defineEmits(['update:modelValue'])
+</script>
diff --git a/frontend/src/components/documents/SortControls.vue b/frontend/src/components/documents/SortControls.vue
new file mode 100644
index 0000000..cd0b58f
--- /dev/null
+++ b/frontend/src/components/documents/SortControls.vue
@@ -0,0 +1,49 @@
+<template>
+  <div class="flex items-center gap-1">
+    <span class="sr-only">Sort by:</span>
+    <button
+      v-for="option in sortOptions"
+      :key="option.value"
+      @click="handleClick(option.value)"
+      :aria-pressed="sort === option.value"
+      :aria-label="sort === option.value ? `Sort by ${option.label}, ${order === 'asc' ? 'ascending' : 'descending'}` : `Sort by ${option.label}`"
+      class="text-xs font-medium px-2 py-1 rounded transition-colors"
+      :class="sort === option.value
+        ? 'text-indigo-600 font-semibold bg-indigo-50'
+        : 'text-gray-500 hover:text-gray-900'"
+    >
+      {{ option.label }}{{ sort === option.value ? (order === 'asc' ? ' ↑' : ' ↓') : '' }}
+    </button>
+  </div>
+</template>
+
+<script setup>
+const props = defineProps({
+  sort: {
+    type: String,
+    default: 'date',
+  },
+  order: {
+    type: String,
+    default: 'desc',
+  },
+})
+
+const emit = defineEmits(['change'])
+
+const sortOptions = [
+  { value: 'name', label: 'Name' },
+  { value: 'date', label: 'Date' },
+  { value: 'size', label: 'Size' },
+]
+
+function handleClick(value) {
+  if (props.sort === value) {
+    // Toggle order
+    emit('change', { sort: value, order: props.order === 'asc' ? 'desc' : 'asc' })
+  } else {
+    // Switch to new sort, default desc
+    emit('change', { sort: value, order: 'desc' })
+  }
+}
+</script>
diff --git a/frontend/src/components/folders/FolderBreadcrumb.vue b/frontend/src/components/folders/FolderBreadcrumb.vue
new file mode 100644
index 0000000..67bd98f
--- /dev/null
+++ b/frontend/src/components/folders/FolderBreadcrumb.vue
@@ -0,0 +1,68 @@
+<template>
+  <nav aria-label="Folder navigation">
+    <ol class="flex items-center gap-1 text-sm flex-wrap">
+      <!-- Root "Home" segment -->
+      <li class="flex items-center gap-1">
+        <button
+          @click="emit('navigate', null)"
+          class="text-indigo-600 hover:underline font-medium"
+        >
+          Home
+        </button>
+      </li>
+
+      <template v-for="(segment, idx) in visibleSegments" :key="segment.id ?? 'ellipsis-' + idx">
+        <!-- Separator -->
+        <li class="shrink-0" aria-hidden="true">
+          <svg class="w-3 h-3 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7" />
+          </svg>
+        </li>
+
+        <!-- Ellipsis (non-navigable) -->
+        <li v-if="segment.id === 'ellipsis'" class="flex items-center">
+          <span class="px-2 py-1 text-gray-400">…</span>
+        </li>
+
+        <!-- Last segment (current folder, non-clickable) -->
+        <li v-else-if="idx === visibleSegments.length - 1" class="flex items-center">
+          <span class="text-gray-900 font-medium">{{ segment.name }}</span>
+        </li>
+
+        <!-- Clickable segment -->
+        <li v-else class="flex items-center">
+          <button
+            @click="emit('navigate', segment.id)"
+            class="text-indigo-600 hover:underline font-medium"
+          >
+            {{ segment.name }}
+          </button>
+        </li>
+      </template>
+    </ol>
+  </nav>
+</template>
+
+<script setup>
+import { computed } from 'vue'
+
+const props = defineProps({
+  segments: {
+    type: Array,
+    default: () => [],
+  },
+})
+
+const emit = defineEmits(['navigate'])
+
+const visibleSegments = computed(() => {
+  if (props.segments.length > 4) {
+    return [
+      props.segments[0],
+      { id: 'ellipsis', name: '…' },
+      ...props.segments.slice(-2),
+    ]
+  }
+  return props.segments
+})
+</script>
diff --git a/frontend/src/components/folders/FolderDeleteModal.vue b/frontend/src/components/folders/FolderDeleteModal.vue
new file mode 100644
index 0000000..e0b1347
--- /dev/null
+++ b/frontend/src/components/folders/FolderDeleteModal.vue
@@ -0,0 +1,81 @@
+<template>
+  <!-- Overlay -->
+  <div
+    class="fixed inset-0 bg-black/40 flex items-center justify-center z-50"
+    @click.self="handleCancel"
+  >
+    <!-- Panel -->
+    <div
+      role="dialog"
+      aria-modal="true"
+      aria-labelledby="delete-modal-title"
+      class="bg-white rounded-2xl shadow-xl p-6 max-w-md w-full mx-4"
+    >
+      <!-- Warning icon -->
+      <div class="flex justify-center">
+        <div class="w-10 h-10 bg-red-50 rounded-full flex items-center justify-center">
+          <svg class="w-5 h-5 text-red-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
+              d="M12 9v2m0 4h.01M10.29 3.86L1.82 18a2 2 0 001.71 3h16.94a2 2 0 001.71-3L13.71 3.86a2 2 0 00-3.42 0z" />
+          </svg>
+        </div>
+      </div>
+
+      <!-- Heading -->
+      <h2 id="delete-modal-title" class="text-lg font-semibold text-gray-900 mt-4 text-center">
+        Delete folder?
+      </h2>
+
+      <!-- Body -->
+      <p class="text-sm text-gray-600 text-center mt-2 mb-6">
+        This folder contains {{ folder.doc_count ?? 0 }} document{{ (folder.doc_count ?? 0) !== 1 ? 's' : '' }}.
+        Deleting it will permanently delete all documents inside. This cannot be undone.
+      </p>
+
+      <!-- Buttons -->
+      <div class="flex gap-3 justify-end">
+        <button
+          @click="handleCancel"
+          class="text-sm text-gray-600 hover:text-gray-800 px-4 py-2 rounded-lg border border-gray-200 hover:bg-gray-50 transition-colors"
+        >
+          Keep folder
+        </button>
+        <button
+          @click="handleConfirm"
+          class="bg-red-600 hover:bg-red-700 text-white text-sm font-semibold px-4 py-2 rounded-lg min-h-[44px] transition-colors"
+        >
+          Delete folder and documents
+        </button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup>
+const props = defineProps({
+  folder: {
+    type: Object,
+    required: true,
+  },
+  onConfirm: {
+    type: Function,
+    default: null,
+  },
+  onCancel: {
+    type: Function,
+    default: null,
+  },
+})
+
+const emit = defineEmits(['confirm', 'cancel'])
+
+function handleConfirm() {
+  emit('confirm')
+  if (props.onConfirm) props.onConfirm()
+}
+
+function handleCancel() {
+  emit('cancel')
+  if (props.onCancel) props.onCancel()
+}
+</script>
diff --git a/frontend/src/components/folders/FolderRow.vue b/frontend/src/components/folders/FolderRow.vue
new file mode 100644
index 0000000..69625cf
--- /dev/null
+++ b/frontend/src/components/folders/FolderRow.vue
@@ -0,0 +1,161 @@
+<template>
+  <div
+    class="flex items-center gap-3 px-4 py-3 bg-white border border-gray-200 rounded-xl hover:border-indigo-300 hover:shadow-sm transition-all cursor-pointer"
+    @click="handleNavigate"
+  >
+    <!-- Folder icon -->
+    <div class="w-9 h-9 rounded-lg bg-gray-100 flex items-center justify-center shrink-0">
+      <svg class="w-5 h-5 text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
+          d="M3 7a2 2 0 012-2h4l2 2h8a2 2 0 012 2v9a2 2 0 01-2 2H5a2 2 0 01-2-2V7z" />
+      </svg>
+    </div>
+
+    <!-- Name and doc count -->
+    <div class="flex-1 min-w-0">
+      <!-- Rename mode: inline input -->
+      <div v-if="renaming" @click.stop>
+        <input
+          ref="renameInputRef"
+          v-model="renameValue"
+          type="text"
+          class="border border-gray-300 rounded-lg px-2 py-1 text-sm w-full focus:outline-none focus:ring-2 focus:ring-indigo-500"
+          @keydown.enter="submitRename"
+          @keydown.escape="cancelRename"
+          @click.stop
+        />
+        <p v-if="renameError" class="text-red-500 text-xs mt-1">{{ renameError }}</p>
+      </div>
+      <!-- Normal display mode -->
+      <template v-else>
+        <p class="font-medium text-gray-900 text-sm truncate">{{ folder.name }}</p>
+        <p class="text-xs text-gray-400 mt-0.5">{{ folder.doc_count ?? 0 }} document{{ (folder.doc_count ?? 0) !== 1 ? 's' : '' }}</p>
+      </template>
+    </div>
+
+    <!-- Three-dot menu -->
+    <div class="relative shrink-0" @click.stop>
+      <button
+        @click="toggleMenu"
+        aria-label="Folder actions"
+        class="p-1.5 rounded-md text-gray-400 hover:text-gray-600 hover:bg-gray-100 transition-colors min-h-[36px] min-w-[36px] flex items-center justify-center"
+      >
+        <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 20 20">
+          <path d="M10 6a2 2 0 110-4 2 2 0 010 4zm0 6a2 2 0 110-4 2 2 0 010 4zm0 6a2 2 0 110-4 2 2 0 010 4z" />
+        </svg>
+      </button>
+
+      <!-- Dropdown menu -->
+      <div
+        v-if="menuOpen"
+        class="absolute right-0 top-full mt-1 bg-white border border-gray-200 rounded-lg shadow-md py-1 min-w-[140px] z-10"
+      >
+        <button
+          @click="startRename"
+          class="w-full text-left px-3 py-2 text-sm text-gray-700 hover:bg-gray-50 transition-colors"
+        >
+          Rename
+        </button>
+        <button
+          @click="handleDelete"
+          class="w-full text-left px-3 py-2 text-sm text-red-600 hover:bg-red-50 transition-colors"
+        >
+          Delete folder
+        </button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref, nextTick, onMounted, onUnmounted } from 'vue'
+
+const props = defineProps({
+  folder: {
+    type: Object,
+    required: true,
+  },
+  onNavigate: {
+    type: Function,
+    default: null,
+  },
+  onRename: {
+    type: Function,
+    default: null,
+  },
+  onDelete: {
+    type: Function,
+    default: null,
+  },
+})
+
+const menuOpen = ref(false)
+const renaming = ref(false)
+const renameValue = ref('')
+const renameError = ref('')
+const renameInputRef = ref(null)
+
+function handleNavigate() {
+  if (renaming.value) return
+  if (props.onNavigate) props.onNavigate(props.folder.id)
+}
+
+function toggleMenu() {
+  menuOpen.value = !menuOpen.value
+}
+
+function closeMenu() {
+  menuOpen.value = false
+}
+
+function startRename() {
+  closeMenu()
+  renameValue.value = props.folder.name
+  renameError.value = ''
+  renaming.value = true
+  nextTick(() => {
+    renameInputRef.value?.focus()
+    renameInputRef.value?.select()
+  })
+}
+
+function cancelRename() {
+  renaming.value = false
+  renameError.value = ''
+}
+
+async function submitRename() {
+  const trimmed = renameValue.value.trim()
+  if (!trimmed) {
+    renameError.value = 'Folder name cannot be empty.'
+    return
+  }
+  try {
+    if (props.onRename) await props.onRename(props.folder.id, trimmed)
+    renaming.value = false
+    renameError.value = ''
+  } catch (e) {
+    renameError.value = e.message || 'Failed to rename folder.'
+  }
+}
+
+function handleDelete() {
+  closeMenu()
+  if (props.onDelete) props.onDelete(props.folder)
+}
+
+// Close menu on outside click
+function handleOutsideClick(e) {
+  if (!e.target.closest('.relative')) {
+    closeMenu()
+  }
+}
+
+onMounted(() => {
+  document.addEventListener('click', handleOutsideClick)
+})
+
+onUnmounted(() => {
+  document.removeEventListener('click', handleOutsideClick)
+})
+</script>
diff --git a/frontend/src/components/sharing/ShareModal.vue b/frontend/src/components/sharing/ShareModal.vue
new file mode 100644
index 0000000..099404f
--- /dev/null
+++ b/frontend/src/components/sharing/ShareModal.vue
@@ -0,0 +1,162 @@
+<template>
+  <!-- Overlay -->
+  <div
+    class="fixed inset-0 bg-black/40 flex items-center justify-center z-50"
+    @click.self="emit('close')"
+  >
+    <!-- Panel -->
+    <div
+      role="dialog"
+      aria-modal="true"
+      aria-labelledby="share-modal-title"
+      class="bg-white rounded-2xl shadow-xl p-6 max-w-md w-full mx-4 relative"
+    >
+      <!-- Close button -->
+      <button
+        @click="emit('close')"
+        aria-label="Close"
+        class="absolute top-4 right-4 text-gray-400 hover:text-gray-600 transition-colors"
+      >
+        <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
+        </svg>
+      </button>
+
+      <!-- Title -->
+      <h2 id="share-modal-title" class="text-lg font-semibold text-gray-900 mb-4">
+        Share document
+      </h2>
+
+      <!-- Handle input row -->
+      <div class="flex gap-2">
+        <input
+          v-model="handle"
+          type="text"
+          placeholder="Enter username handle"
+          class="flex-1 border border-gray-300 rounded-lg px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-indigo-500"
+          @keydown.enter="submitShare"
+        />
+        <button
+          @click="submitShare"
+          :disabled="submitting || !handle.trim()"
+          class="bg-indigo-600 hover:bg-indigo-700 text-white text-sm px-4 py-2 rounded-lg disabled:opacity-50 transition-colors shrink-0"
+        >
+          <span v-if="submitting" class="flex items-center gap-1.5">
+            <span class="animate-spin rounded-full border-2 border-current border-t-transparent w-3 h-3"></span>
+            Sharing…
+          </span>
+          <span v-else>Share document</span>
+        </button>
+      </div>
+
+      <!-- Error -->
+      <p v-if="error" class="text-xs text-red-600 mt-2">{{ error }}</p>
+
+      <!-- Separator -->
+      <div class="border-t border-gray-100 my-4"></div>
+
+      <!-- Loading shares -->
+      <div v-if="loadingShares" class="text-sm text-gray-400 py-2">Loading…</div>
+
+      <!-- Empty state -->
+      <p v-else-if="shares.length === 0" class="text-sm text-gray-400 italic py-2">
+        Not shared with anyone yet.
+      </p>
+
+      <!-- Recipients list -->
+      <ul v-else class="space-y-1">
+        <li
+          v-for="share in shares"
+          :key="share.id"
+          class="flex items-center justify-between py-2"
+        >
+          <div class="flex items-center gap-2">
+            <span class="text-sm text-gray-900">{{ share.recipient_handle }}</span>
+            <span class="text-xs bg-gray-100 text-gray-600 px-2 py-1 rounded-full font-medium">view</span>
+          </div>
+          <button
+            @click="handleRevoke(share.id)"
+            class="text-xs text-red-500 hover:text-red-700 font-medium transition-colors"
+          >
+            Remove access
+          </button>
+        </li>
+      </ul>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref, onMounted } from 'vue'
+import { useDocumentsStore } from '../../stores/documents.js'
+
+const props = defineProps({
+  doc: {
+    type: Object,
+    required: true,
+  },
+})
+
+const emit = defineEmits(['close'])
+
+const docsStore = useDocumentsStore()
+
+const handle = ref('')
+const submitting = ref(false)
+const error = ref(null)
+const shares = ref([])
+const loadingShares = ref(false)
+
+onMounted(async () => {
+  loadingShares.value = true
+  try {
+    const data = await docsStore.listShares(props.doc.id)
+    shares.value = Array.isArray(data) ? data : (data.items ?? [])
+  } catch (e) {
+    // silently fail for list — show empty state
+  } finally {
+    loadingShares.value = false
+  }
+})
+
+async function submitShare() {
+  const trimmed = handle.value.trim()
+  if (!trimmed || submitting.value) return
+
+  submitting.value = true
+  error.value = null
+
+  try {
+    const newShare = await docsStore.shareDocument(props.doc.id, trimmed)
+    shares.value.push(newShare)
+    handle.value = ''
+  } catch (e) {
+    if (e.status === 404) {
+      error.value = 'User not found. Check the handle and try again.'
+    } else if (e.status === 409) {
+      error.value = 'This document is already shared with that user.'
+    } else {
+      error.value = e.message || 'Something went wrong. Please try again.'
+    }
+  } finally {
+    submitting.value = false
+  }
+}
+
+async function handleRevoke(shareId) {
+  // Optimistic removal
+  const removedIdx = shares.value.findIndex(s => s.id === shareId)
+  const removed = shares.value[removedIdx]
+  if (removedIdx !== -1) shares.value.splice(removedIdx, 1)
+
+  try {
+    await docsStore.revokeShare(shareId)
+  } catch (e) {
+    // Re-add on failure
+    if (removed && removedIdx !== -1) {
+      shares.value.splice(removedIdx, 0, removed)
+    }
+    error.value = e.message || 'Failed to remove access.'
+  }
+}
+</script>