added 引用评论功能增加

themes/Ying/assets/js/main.js

@@ -366,8 +366,141 @@ function initFloatingTools() {
 // Listen for PJAX complete to update visibility
 document.addEventListener('pjax:complete', function() {
     updateFloatingToolsVisibility();
+    hideSelectionPopup();
 });
 
 document.addEventListener('DOMContentLoaded', function() {
     initFloatingTools();
+    initSelectionPopup();
 });
+
+// Selection Popup Logic
+let selectionPopup = null;
+let selectionTimeout;
+
+function initSelectionPopup() {
+    if (document.getElementById('selection-popup')) return;
+
+    selectionPopup = document.createElement('div');
+    selectionPopup.id = 'selection-popup';
+    selectionPopup.innerHTML = '<i class="ri-chat-quote-line"></i> <span>引用评论</span>';
+    document.body.appendChild(selectionPopup);
+
+    // Prevent mousedown on popup from clearing selection
+    selectionPopup.addEventListener('mousedown', function(e) {
+        e.preventDefault();
+        e.stopPropagation();
+    });
+
+    // Handle click on popup
+    selectionPopup.addEventListener('click', function(e) {
+        e.preventDefault();
+        e.stopPropagation();
+        
+        let selection = window.getSelection().toString();
+        // Optimize: Remove extra whitespace and limit length
+        if (selection) {
+            // Collapse multiple empty lines into max 2 newlines, and trim each line
+            selection = selection.split('\n')
+                .map(line => line.trim())
+                .filter(line => line !== '')
+                .join('\n');
+                
+            if (selection.length > 500) {
+                 selection = selection.substring(0, 500) + '...';
+            }
+
+            scrollToCommentsAndQuote(selection);
+            hideSelectionPopup();
+            window.getSelection().removeAllRanges();
+        }
+    });
+
+    // Global listeners for selection
+    document.addEventListener('mouseup', handleSelectionChange);
+    document.addEventListener('keyup', handleSelectionChange);
+}
+
+function hideSelectionPopup() {
+    if (selectionPopup) {
+        selectionPopup.style.display = 'none';
+    }
+}
+
+function handleSelectionChange(e) {
+    // Debounce to avoid rapid firing
+    clearTimeout(selectionTimeout);
+    selectionTimeout = setTimeout(() => {
+        const selection = window.getSelection();
+        const text = selection.toString().trim();
+        const content = document.querySelector('.post-content'); // Main article container
+        
+        if (!selectionPopup || !content) return;
+
+        // Check if selection is empty
+        if (!text || selection.rangeCount === 0) {
+            hideSelectionPopup();
+            return;
+        }
+
+        const range = selection.getRangeAt(0);
+        
+        // Check if the common ancestor is inside .post-content
+        // Optimization: Check container existence before heavy contains check
+        if (!content.contains(range.commonAncestorContainer)) {
+            hideSelectionPopup();
+            return;
+        }
+
+        // Optimization: Use requestAnimationFrame for UI updates
+        requestAnimationFrame(() => {
+            // Show first to ensure measurements if needed (though we set top/left directly)
+            selectionPopup.style.display = 'flex'; 
+
+            // Position logic: Follow mouse if available (mouseup), else fallback to selection rect (keyup)
+            if (e && e.type === 'mouseup') {
+                // Optimization: Avoid getBoundingClientRect on mouseup
+                // Position above the mouse cursor
+                selectionPopup.style.top = `${e.clientY - 40}px`; 
+                selectionPopup.style.left = `${e.clientX}px`;
+            } else {
+                // Fallback for keyboard selection (needs rect)
+                const rect = range.getBoundingClientRect();
+                 // Check if visible and valid
+                if (rect.width === 0 || rect.height === 0) {
+                    hideSelectionPopup();
+                    return;
+                }
+                selectionPopup.style.top = `${rect.top}px`; 
+                selectionPopup.style.left = `${rect.left + rect.width / 2}px`;
+            }
+        });
+    }, 150);
+}
+
+function scrollToCommentsAndQuote(text) {
+    const comments = document.getElementById('Comments');
+    if (comments) {
+        comments.scrollIntoView({ behavior: 'smooth' });
+        
+        // Wait for scroll to complete (approximate)
+        setTimeout(() => {
+             // Find Artalk textarea
+             const textarea = document.querySelector('.atk-textarea');
+             if (textarea) {
+                 const quote = `> ${text}\n\n`;
+                 // Overwrite existing content as requested
+                 textarea.value = quote;
+                 textarea.focus();
+                 
+                 // Trigger input event for Vue/React binding (Artalk uses Vue)
+                textarea.dispatchEvent(new Event('input', { bubbles: true }));
+                textarea.dispatchEvent(new Event('change', { bubbles: true }));
+                
+                if (window.Qmsg) {
+                    Qmsg.success('引用成功');
+                }
+            }
+       }, 500);
+   }
+}