first commit; dx 1.0 beta

src/trash/helpers.js

@@ -0,0 +1,70 @@
+export function ifstyle(condition, then) {
+  return condition ? " " + then : "";
+}
+export function b64e(str) {
+  return btoa(
+    encodeURIComponent(str).replace(
+      /%([0-9A-F]{2})/g,
+      function toSolidBytes(match, p1) {
+        return String.fromCharCode("0x" + p1);
+      }
+    )
+  );
+}
+
+export function b64d(str) {
+  return decodeURIComponent(
+    atob(str)
+      .split("")
+      .map(function (c) {
+        return "%" + ("00" + c.charCodeAt(0).toString(16)).slice(-2);
+      })
+      .join("")
+  );
+}
+
+
+/** by claude
+ * Universal copy-to-clipboard function
+ * Works with modern Clipboard API and falls back to legacy methods
+ * @param {string} text - The text to copy to clipboard
+ * @returns {Promise<boolean>} - Returns true if successful, false otherwise
+ */
+export async function copyToClipboard(text) {
+  // Method 1: Modern Clipboard API (preferred)
+  if (navigator.clipboard && window.isSecureContext) {
+    try {
+      await navigator.clipboard.writeText(text);
+      return true;
+    } catch (err) {
+      console.warn('Clipboard API failed, trying fallback:', err);
+    }
+  }
+  
+  // Method 2: Fallback for older browsers or non-secure contexts
+  try {
+    const textarea = document.createElement('textarea');
+    textarea.value = text;
+    
+    // Make it invisible and non-intrusive
+    textarea.style.position = 'fixed';
+    textarea.style.left = '-999999px';
+    textarea.style.top = '-999999px';
+    textarea.style.opacity = '0';
+    textarea.setAttribute('readonly', '');
+    
+    document.body.appendChild(textarea);
+    
+    // Select and copy
+    textarea.select();
+    textarea.setSelectionRange(0, text.length);
+    
+    const success = document.execCommand('copy');
+    document.body.removeChild(textarea);
+    
+    return success;
+  } catch (err) {
+    console.error('All copy methods failed:', err);
+    return false;
+  }
+}