feat: 附件上传前预览

src/views/Conversations/Online/Input/EmailEditorPopup.jsx

@@ -302,6 +302,7 @@ const EmailEditorPopup = ({ open, setOpen, fromEmail, fromUser, fromOrder, toEma
         reader.onloadend = (e) => {
           var dataURL = e.target.result;
           var win = window.open("", "_blank");
+          win.document.body.style.margin = '0';
           if (file.type.startsWith('image/')) {
               win.document.write("<img src='" + e.target.result + "' />");
           } else if (file.type.startsWith('text/') || file.type === 'application/html' || file.type === 'application/xhtml+xml') {
@@ -311,14 +312,16 @@ const EmailEditorPopup = ({ open, setOpen, fromEmail, fromUser, fromOrder, toEma
               iframe.style.height = '100%';
               iframe.style.border = 'none';
               win.document.body.appendChild(iframe);
+              win.document.body.style.margin = '0';
           } else if (file.type === 'application/pdf') {
-              win.document.write("<iframe src='" + e.target.result + "' width='100%' height='100%' style=\"border:none\"></iframe>");
+            win.document.write("<iframe src='" + e.target.result + "' width='100%' height='100%' style=\"border:none\"></iframe>");
+            win.document.body.style.margin = '0';
           } else if (file.type.startsWith('audio/')) {
               win.document.write("<audio controls src='" + e.target.result + "'></audio>");
           } else if (file.type.startsWith('video/')) {
               win.document.write("<video controls src='" + e.target.result + "'></video>");
           } else {
-              win.document.write("<p>Preview not available for this file type</p>");
+              win.document.write("<h2>Preview not available for this file type</h2>");
           }
           // win.document.write("<iframe src='" + dataURL + "' width='100%' height='100%' style=\"border:none\"></iframe>");
           resolve(reader.result)