feat: improve Clipboard Sniffer extension integration and UI fixes

src/components/tools/ClipboardSniffer.vue

@@ -1,51 +1,135 @@
 <script setup>
-import { ref, onUnmounted, nextTick } from 'vue'
+import { ref, onUnmounted, nextTick, onMounted } from 'vue'
 import { useFillHeight } from '../../composables/useFillHeight'
+import { Plug, Info, X } from 'lucide-vue-next'
 
 const clipboardContent = ref('')
 const isListening = ref(false)
 const lastClipboardText = ref('')
 const textareaRef = ref(null)
+const isExtensionReady = ref(false)
+const showExtensionModal = ref(false)
 let intervalId = null
+let extensionCheckInterval = null
 
 const { height: textareaHeight } = useFillHeight(textareaRef, 40) // 40px margin bottom
 
+// Listen for extension messages
+const handleExtensionMessage = (event) => {
+  if (event.source !== window) return
+
+  if (event.data.type === 'TOOLS_APP_EXTENSION_READY' || event.data.type === 'TOOLS_APP_PONG') {
+    isExtensionReady.value = true
+    lastPongTime = Date.now()
+    // console.log('Extension is ready')
+  }
+
+  if (event.data.type === 'TOOLS_APP_CLIPBOARD_UPDATE' && isListening.value) {
+    const text = event.data.content
+    if (text && text !== lastClipboardText.value) {
+      lastClipboardText.value = text
+      clipboardContent.value += (clipboardContent.value ? '\n' : '') + text
+      scrollToBottom()
+    }
+  }
+}
+
+const closeModalOnEsc = (e) => {
+  if (e.key === 'Escape' && showExtensionModal.value) {
+    showExtensionModal.value = false
+  }
+}
+
+// Watchdog for extension
+let lastPongTime = Date.now()
+const PING_INTERVAL = 200
+const TIMEOUT_THRESHOLD = 500
+
+const startExtensionWatchdog = () => {
+  extensionCheckInterval = setInterval(() => {
+    // 1. Send Ping
+    window.postMessage({ type: 'TOOLS_APP_PING' }, '*')
+
+    // 2. Check timeout
+    // If current time - lastPongTime > threshold, then disconnected
+    if (Date.now() - lastPongTime > TIMEOUT_THRESHOLD) {
+       isExtensionReady.value = false
+    }
+  }, PING_INTERVAL)
+}
+
+// Wrapper to intercept PONG and update heartbeat
+const messageListener = (event) => {
+  if (event.source !== window) return
+
+  if (event.data.type === 'TOOLS_APP_PONG' || event.data.type === 'TOOLS_APP_EXTENSION_READY') {
+    lastPongTime = Date.now()
+    isExtensionReady.value = true
+  }
+
+  handleExtensionMessage(event)
+}
+
+onMounted(() => {
+  window.addEventListener('message', messageListener)
+  window.addEventListener('keydown', closeModalOnEsc)
+
+  // Initial check
+  window.postMessage({ type: 'TOOLS_APP_INIT' }, '*')
+
+  // Start heartbeat
+  startExtensionWatchdog()
+})
+
+onUnmounted(() => {
+  stopListening()
+  if (extensionCheckInterval) clearInterval(extensionCheckInterval)
+  window.removeEventListener('message', messageListener)
+  window.removeEventListener('keydown', closeModalOnEsc)
+})
+
+const scrollToBottom = () => {
+  nextTick(() => {
+    const textarea = document.querySelector('.tool-textarea')
+    if (textarea) {
+      textarea.scrollTop = textarea.scrollHeight
+    }
+  })
+}
+
 const startListening = async () => {
   try {
-    // Initial read to ask for permission/check access
-    const text = await navigator.clipboard.readText()
-    lastClipboardText.value = text // Don't paste existing content immediately, only new content?
-    // Or maybe we want to paste the current content immediately?
-    // "wklejaj nasluchane wartosci" - usually implies new values.
-    // Let's set current as last seen so we don't duplicate it if it's already there?
-    // Actually, user might want the current clipboard too.
-    // Let's assume we start clean or append.
-    // If I set lastClipboardText to current, it won't be added.
-    // Let's add the current text if it's not empty.
-    if (text) {
-        lastClipboardText.value = text
-        clipboardContent.value += (clipboardContent.value ? '\n' : '') + text
-    }
-
     isListening.value = true
 
+    // Try native API first (for web app usage without extension)
+    // Initial read
+    try {
+      const text = await navigator.clipboard.readText()
+      if (text) {
+          lastClipboardText.value = text
+          clipboardContent.value += (clipboardContent.value ? '\n' : '') + text
+          scrollToBottom()
+      }
+    } catch (e) {
+      console.log('Native clipboard read failed (expected if not focused), relying on extension if available')
+    }
+
+    // If extension is ready, ask it to start sniffing
+    if (isExtensionReady.value) {
+      window.postMessage({ type: 'TOOLS_APP_START_SNIFFING' }, '*')
+    }
+
+    // Fallback polling for web app (only works when focused usually)
     intervalId = setInterval(async () => {
       try {
         const currentText = await navigator.clipboard.readText()
         if (currentText && currentText !== lastClipboardText.value) {
           lastClipboardText.value = currentText
           clipboardContent.value += (clipboardContent.value ? '\n' : '') + currentText
-
-          // Auto-scroll to bottom
-          const textarea = document.querySelector('.tool-textarea')
-          if (textarea) {
-            textarea.scrollTop = textarea.scrollHeight
-          }
+          scrollToBottom()
         }
       } catch (err) {
-        console.error('Failed to read clipboard:', err)
-        // Don't stop immediately on one error, could be temporary focus loss?
-        // But if permission revoked, maybe stop.
+        // Ignore errors in polling (e.g. lost focus)
       }
     }, 1000)
   } catch (err) {
@@ -60,6 +144,10 @@ const stopListening = () => {
     clearInterval(intervalId)
     intervalId = null
   }
+
+  if (isExtensionReady.value) {
+    window.postMessage({ type: 'TOOLS_APP_STOP_SNIFFING' }, '*')
+  }
 }
 
 const clearText = () => {
@@ -90,7 +178,18 @@ onUnmounted(() => {
 <template>
   <div class="tool-container" style="max-width: 100%;">
     <div class="tool-panel">
-      <h2 class="tool-title">Clipboard Sniffer</h2>
+      <div class="tool-header">
+        <h2 class="tool-title">Clipboard Sniffer</h2>
+        <div
+          class="extension-status"
+          :class="{ 'connected': isExtensionReady }"
+          @click="showExtensionModal = true"
+          :title="isExtensionReady ? 'Extension connected' : 'Extension not detected - Click for info'"
+        >
+          <Plug v-if="isExtensionReady" size="20" />
+          <Info v-else size="20" />
+        </div>
+      </div>
 
       <div class="controls">
         <button
@@ -119,20 +218,187 @@ onUnmounted(() => {
         </button>
       </div>
 
-      <div class="result-area" style="margin-top: 2rem;">
+      <div class="result-area" style="margin-top: 1rem;">
         <div ref="textareaRef" :style="{ height: textareaHeight, width: '100%' }">
           <textarea
             v-model="clipboardContent"
             class="tool-textarea"
             placeholder="Clipboard content will appear here line by line..."
+            readonly
           ></textarea>
         </div>
       </div>
     </div>
+
+    <!-- Extension Info Modal -->
+    <div v-if="showExtensionModal" class="modal-overlay" @click.self="showExtensionModal = false">
+      <div class="modal-content glass-panel">
+        <button class="close-btn" @click="showExtensionModal = false">
+          <X size="24" />
+        </button>
+
+        <div v-if="!isExtensionReady">
+          <h3>Enhance Your Experience</h3>
+          <p>
+            Install our browser extension to enable <strong>background clipboard sniffing</strong>!
+          </p>
+          <p class="description">
+            Without the extension, this tool can only capture clipboard content when the tab is active.
+            With the extension, you can capture content even when you're working in other apps.
+          </p>
+          <div class="modal-actions">
+            <a href="#" class="btn-neon" @click.prevent>Extension Coming Soon</a>
+          </div>
+        </div>
+
+        <div v-else>
+          <h3>Extension Connected!</h3>
+          <p>
+            You have successfully enabled <strong>background clipboard sniffing</strong>.
+          </p>
+          <p class="description">
+            The extension is active and monitoring your clipboard in the background.
+            You can now switch to other apps and copy text - it will appear here automatically.
+          </p>
+          <div class="modal-actions">
+            <button class="btn-neon" @click="showExtensionModal = false">Got it!</button>
+          </div>
+        </div>
+
+      </div>
+    </div>
   </div>
 </template>
 
 <style scoped>
+.tool-header {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  position: relative;
+  width: 100%;
+}
+
+.extension-status {
+  position: absolute;
+  right: 0;
+  top: 50%;
+  transform: translateY(-50%);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 32px;
+  height: 32px;
+  border-radius: 50%;
+  background: rgba(255, 255, 255, 0.1);
+  color: var(--text-secondary);
+  cursor: pointer;
+  transition: all 0.3s ease;
+}
+
+:global(:root[data-theme="light"]) .extension-status {
+  background: rgba(0, 0, 0, 0.05);
+  color: #666;
+}
+
+.extension-status:hover {
+  background: rgba(255, 255, 255, 0.2);
+  color: var(--text-color);
+}
+
+:global(:root[data-theme="light"]) .extension-status:hover {
+  background: rgba(0, 0, 0, 0.1);
+  color: #000;
+}
+
+.extension-status.connected {
+  color: #4ade80; /* Green for connected */
+  cursor: pointer; /* Allow clicking to see status */
+}
+
+/* :global(:root[data-theme="light"]) .extension-status.connected {
+  color: #16a34a;
+} */
+
+.extension-status.connected:hover {
+  background: rgba(74, 222, 128, 0.1);
+}
+
+/* :global(:root[data-theme="light"]) .extension-status.connected:hover {
+  background: rgba(22, 163, 74, 0.1);
+} */
+
+.modal-overlay {
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background: rgba(0, 0, 0, 0.7);
+  backdrop-filter: blur(4px);
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  z-index: 1000;
+}
+
+.modal-content {
+  position: relative;
+  width: 90%;
+  max-width: 500px;
+  padding: 2rem;
+  border-radius: 16px;
+  background: var(--glass-bg);
+  border: 1px solid var(--glass-border);
+  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
+  text-align: center;
+}
+
+.close-btn {
+  position: absolute;
+  top: 1rem;
+  right: 1rem;
+  background: none;
+  border: none;
+  color: var(--text-secondary);
+  cursor: pointer;
+  padding: 0.5rem;
+  border-radius: 50%;
+  transition: all 0.2s;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.close-btn:hover {
+  background: rgba(255, 255, 255, 0.1);
+  color: var(--text-color);
+}
+
+.modal-content h3 {
+  margin-top: 0;
+  margin-bottom: 1rem;
+  font-size: 1.5rem;
+  color: var(--text-color);
+}
+
+.modal-content p {
+  margin-bottom: 1rem;
+  line-height: 1.6;
+  color: var(--text-color);
+}
+
+.description {
+  color: var(--text-secondary) !important;
+  font-size: 0.9rem;
+  margin-bottom: 2rem !important;
+}
+
+.modal-actions {
+  display: flex;
+  justify-content: center;
+}
+
 .controls {
   display: flex;
   gap: 1rem;