If user clicks cancel while browsing for file then don't clear

nyalldawson · nyalldawson · commit c66c9bbdcf48 · 2015-08-16T08:13:03.000+10:00
the existing filename in the vector open file dialog (cherry-picked from 1a91ae8)
diff --git a/src/app/ogr/qgsopenvectorlayerdialog.cpp b/src/app/ogr/qgsopenvectorlayerdialog.cpp
@@ -271,7 +271,9 @@ void QgsOpenVectorLayerDialog::on_buttonSelectSrc_clicked()
 {
   if ( radioSrcFile->isChecked() )
   {
-    inputSrcDataset->setText( openFile().join( ";" ) );
+    QStringList selected = openFile();
+    if ( selected.count() > 0 )
+      inputSrcDataset->setText( selected.join( ";" ) );
   }
   else if ( radioSrcDirectory->isChecked() )
   {

Original file line number	Diff line number	Diff line change
`@@ -271,7 +271,9 @@ void QgsOpenVectorLayerDialog::on_buttonSelectSrc_clicked()`
`271`	`271`	`{`
`272`	`272`	`if ( radioSrcFile->isChecked() )`
`273`	`273`	`{`
`274`		`- inputSrcDataset->setText( openFile().join( ";" ) );`
	`274`	`+ QStringList selected = openFile();`
	`275`	`+ if ( selected.count() > 0 )`
	`276`	`+ inputSrcDataset->setText( selected.join( ";" ) );`
`275`	`277`	`}`
`276`	`278`	`else if ( radioSrcDirectory->isChecked() )`
`277`	`279`	`{`