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-rw-r--r--documentation/advanced/advanced-dragndrop.asciidoc16
1 files changed, 13 insertions, 3 deletions
diff --git a/documentation/advanced/advanced-dragndrop.asciidoc b/documentation/advanced/advanced-dragndrop.asciidoc
index 1f18234dbf..24e2e2d6f4 100644
--- a/documentation/advanced/advanced-dragndrop.asciidoc
+++ b/documentation/advanced/advanced-dragndrop.asciidoc
@@ -443,7 +443,7 @@ To start uploading a file, set a `StreamVariable` to it. The stream variable pro
Label dropArea = new Label("Drop files here");
FileDropTarget<Label> dropTarget = new FileDropTarget<>(dropArea, event -> {
- List<Html5File> files = event.getFiles();
+ Collection<Html5File> files = event.getFiles();
files.forEach(file -> {
// Max 1 MB files are uploaded
if (file.getFileSize() <= 1024 * 1024) {
@@ -452,8 +452,13 @@ FileDropTarget<Label> dropTarget = new FileDropTarget<>(dropArea, event -> {
// Output stream to write the file to
@Override
public OutputStream getOutputStream() {
- return new FileOutputStream("/path/to/files/"
- + file.getFileName());
+ try{
+ return new FileOutputStream("/path/to/files/"
+ + file.getFileName());
+ }catch (FileNotFoundException e) {
+ e.printStackTrace();
+ }
+ return null;
}
// Returns whether onProgress() is called during upload
@@ -489,6 +494,11 @@ FileDropTarget<Label> dropTarget = new FileDropTarget<>(dropArea, event -> {
Notification.show("Stream failed, fileName="
+ event.getFileName());
}
+
+ @Override
+ public boolean isInterrupted() {
+ return false;
+ }
});
}
}