link-dialog: allow relative file linking

Signed-off-by: Patrizio Bekerle <patrizio@bekerle.com>

Author: pbek

src/dialogs/linkdialog.cpp

@@ -15,6 +15,7 @@
 #include <QRegularExpression>
 #include <QTimer>
 
+#include "entities/notefolder.h"
 #include "services/settingsservice.h"
 #include "ui_linkdialog.h"
 #include "widgets/navigationwidget.h"
@@ -125,7 +126,8 @@ QString LinkDialog::getSelectedHeading() const {
 QString LinkDialog::getURL() const {
     QString url = ui->urlEdit->text().trimmed();
 
-    if (!url.isEmpty() && !url.contains(QStringLiteral("://"))) {
+    if (!url.isEmpty() && !url.contains(QStringLiteral("://")) &&
+        !url.startsWith(QStringLiteral("./"))) {
         url = QStringLiteral("http://") + url;
     }
 
@@ -317,6 +319,20 @@ void LinkDialog::addFileUrl() {
         // store url for the next time
         settings.setValue(QStringLiteral("LinkDialog/lastSelectedFileUrl"), fileUrlString);
 
+        // Check if the url is a file url and relative to the current note folder, if yes, convert
+        // it to relative
+        if (QUrl(fileUrlString).isLocalFile()) {
+            QUrl fileUrl(fileUrlString);
+            QString noteFolderPath = NoteFolder::currentLocalPath();
+            QString filePath = fileUrl.toLocalFile();
+            if (filePath.startsWith(noteFolderPath)) {
+                fileUrlString =
+                    QStringLiteral("./") + QDir(noteFolderPath).relativeFilePath(filePath);
+            }
+        }
+
+        qDebug() << __func__ << " - 'fileUrlString': " << fileUrlString;
+
         // write the file-url to the url text-edit
         ui->urlEdit->setText(fileUrlString);
     }