Refactor Html5 DnD feature based on API review (#9306)

* Refactor Html5 DnD client side based on API review

- Moved classes to "correct" packages.
- Removed method DragSourceExtension.clearDataTransferText()
- Remove ButtonDragSource in favor of more generic API

1 files changed, 11 insertions, 1 deletions

diff --git a/server/src/main/java/com/vaadin/ui/Html5File.java b/server/src/main/java/com/vaadin/ui/Html5File.java
index b4434e75c9..4480e3d59b 100644
--- a/server/src/main/java/com/vaadin/ui/Html5File.java
+++ b/server/src/main/java/com/vaadin/ui/Html5File.java
@@ -32,7 +32,17 @@ public class Html5File implements Serializable {
     private StreamVariable streamVariable;
     private final String type;
 
-    Html5File(String name, long size, String mimeType) {
+    /**
+     * Constructs a new Html5 file wrapper.
+     *
+     * @param name
+     *            the file name
+     * @param size
+     *            the size of the file
+     * @param mimeType
+     *            the type of the file
+     */
+    public Html5File(String name, long size, String mimeType) {
         this.name = name;
         this.size = size;
         type = mimeType;