ayanova/src/api/gzutil.js

@@ -9,12 +9,66 @@ export default {
   // Clear all properties from object without resorting to assigning a new object (o={})
   // which can be problematic in some cases (IE bugs, watched data items in forms etc)
 
-  removeAllPropertiesFromObject(o) {
+  removeAllPropertiesFromObject: function(o) {
     for (var variableKey in o) {
       if (o.hasOwnProperty(variableKey)) {
         delete o[variableKey];
       }
     }
+  },
+  /**
+   * Copy a string to clipboard
+   * @param  {String} string         The string to be copied to clipboard
+   * @return {Boolean}               returns a boolean correspondent to the success of the copy operation.
+   * Modified from an example here: https://stackoverflow.com/a/53951634/8939
+   * Basically a fallback if navigator.clipboard is not available
+   */
+  copyToClipboard: function(string) {
+    let textarea;
+    let result;
+
+    if (navigator && navigator.clipboard) {
+      navigator.clipboard.writeText(string);
+    } else {
+      try {
+        textarea = document.createElement("textarea");
+        textarea.setAttribute("readonly", true);
+        textarea.setAttribute("contenteditable", true);
+        textarea.style.position = "fixed"; // prevent scroll from jumping to the bottom when focus is set.
+        textarea.value = string;
+
+        document.body.appendChild(textarea);
+
+        textarea.focus();
+        textarea.select();
+
+        const range = document.createRange();
+        range.selectNodeContents(textarea);
+
+        const sel = window.getSelection();
+        sel.removeAllRanges();
+        sel.addRange(range);
+
+        textarea.setSelectionRange(0, textarea.value.length);
+        result = document.execCommand("copy");
+      } catch (err) {
+        //console.error(err);
+        result = null;
+      } finally {
+        document.body.removeChild(textarea);
+      }
+
+      // manual copy fallback using prompt
+      if (!result) {
+        const isMac = navigator.platform.toUpperCase().indexOf("MAC") >= 0;
+        const copyHotkey = isMac ? "⌘C" : "CTRL+C";
+        result = prompt(`Press ${copyHotkey}`, string); // eslint-disable-line no-alert
+        if (!result) {
+          return false;
+        }
+      }
+    }
+    return true;
   }
 
   //new functions above here