From 0ce7f90350bbd1f75b0a63753a9b271eb0106a9a Mon Sep 17 00:00:00 2001
From: Damiano Lombardi <damiano@opengis.ch>
Date: Mon, 23 Aug 2021 14:47:22 +0200
Subject: [PATCH] [Attachment widget] Respect relative paths settings by
 drag&drop (#44798)

---
 src/gui/qgsfilewidget.cpp | 15 +++++++++++----
 src/gui/qgsfilewidget.h   |  8 ++++++++
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/src/gui/qgsfilewidget.cpp b/src/gui/qgsfilewidget.cpp
index 1caaa42f82c..9ed17f29563 100644
--- a/src/gui/qgsfilewidget.cpp
+++ b/src/gui/qgsfilewidget.cpp
@@ -59,6 +59,7 @@ QgsFileWidget::QgsFileWidget( QWidget *parent )
   mLineEdit->setDragEnabled( true );
   mLineEdit->setToolTip( tr( "Full path to the file(s), including name and extension" ) );
   connect( mLineEdit, &QLineEdit::textChanged, this, &QgsFileWidget::textEdited );
+  connect( mLineEdit, &QgsFileDropEdit::fileDropped, this, &QgsFileWidget::fileDropped );
   mLayout->addWidget( mLineEdit );
 
   mLinkEditButton = new QToolButton( this );
@@ -190,6 +191,13 @@ void QgsFileWidget::editLink()
   updateLayout();
 }
 
+void QgsFileWidget::fileDropped( const QString &filePath )
+{
+  setSelectedFileNames( QStringList() << filePath );
+  mLineEdit->selectAll();
+  mLineEdit->setFocus( Qt::MouseFocusReason );
+}
+
 bool QgsFileWidget::useLink() const
 {
   return mUseLink;
@@ -585,12 +593,11 @@ void QgsFileDropEdit::dropEvent( QDropEvent *event )
   QString filePath = acceptableFilePath( event );
   if ( !filePath.isEmpty() )
   {
-    setText( filePath );
-    selectAll();
-    setFocus( Qt::MouseFocusReason );
     event->acceptProposedAction();
-    setHighlighted( false );
+    emit fileDropped( filePath );
   }
+
+  setHighlighted( false );
 }
 
 ///@endcond
diff --git a/src/gui/qgsfilewidget.h b/src/gui/qgsfilewidget.h
index 99d573bb7ed..1afdcd1f3a0 100644
--- a/src/gui/qgsfilewidget.h
+++ b/src/gui/qgsfilewidget.h
@@ -298,6 +298,7 @@ class GUI_EXPORT QgsFileWidget : public QWidget
     void openFileDialog();
     void textEdited( const QString &path );
     void editLink();
+    void fileDropped( const QString &filePath );
 
   protected:
 
@@ -379,6 +380,13 @@ class GUI_EXPORT QgsFileDropEdit: public QgsHighlightableLineEdit
 
     void setFilters( const QString &filters );
 
+  signals:
+
+    /**
+     * Emitted when the file \a filePath is droppen onto the line edit.
+     */
+    void fileDropped( const QString &filePath );
+
   protected:
 
     void dragEnterEvent( QDragEnterEvent *event ) override;