FileUploader disabled feature is now updated.

Prevents from uploading files thru clicking the upload button / dragging and dropping files into the file upload area.

Author: kevzlou7979

src/main/java/gwt/material/design/addins/client/fileuploader/MaterialFileUploader.java

@@ -89,6 +89,7 @@ public class MaterialFileUploader extends MaterialWidget implements HasFileUploa
     private Dropzone uploader;
     private JsFileUploaderOptions options;
     private MaterialUploadPreview uploadPreview = new MaterialUploadPreview();
+    private boolean enabled = true;
 
     public MaterialFileUploader() {
         super(Document.get().createDivElement(), AddinsCssName.FILEUPLOADER);
@@ -125,9 +126,35 @@ protected JsFileUploaderOptions getDefaultOptions() {
     protected void onLoad() {
         super.onLoad();
 
+        GWT.log(isEnabled() + "");
+        //uploader.removeEventListeners();
         if (!isInitialize()) {
             initDropzone();
             setInitialize(true);
+            applyEnabled();
+        }
+    }
+
+    @Override
+    public void setEnabled(boolean enabled) {
+        this.enabled = enabled;
+        applyEnabled();
+    }
+
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    protected void applyEnabled() {
+        if (uploader != null) {
+            if (!enabled) {
+                addStyleName(CssName.DISABLED);
+                uploader.removeEventListeners();
+            } else {
+                removeStyleName(CssName.DISABLED);
+                uploader.setupEventListeners();
+            }
         }
     }
 

src/main/java/gwt/material/design/addins/client/fileuploader/js/Dropzone.java

@@ -40,5 +40,9 @@ public Dropzone(Element e, JsFileUploaderOptions options) {
 
     public native Dropzone on(String events, Functions.Func2<File, String> callback);
 
+    public native void removeEventListeners();
+
+    public native void setupEventListeners();
+
     public native void removeAllFiles();
 }

src/main/resources/gwt/material/design/addins/client/fileuploader/resources/css/dropzone.css

@@ -7,6 +7,22 @@
   -moz-box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
   -webkit-box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
 }
+
+.fileuploader.disabled .upload-label {
+  background: #d8d8d7 !important;
+  color: #9f9f9f !important;
+  cursor: not-allowed;
+}
+
+.fileuploader.disabled .upload-label i {
+  color: #aaa !important;
+  cursor: not-allowed !important;
+}
+
+.fileuploader.disabled .preview-container {
+  display: none;
+}
+
 .fileuploader .upload-label{
   background: #2196F3;
   color: #fff;
@@ -60,6 +76,8 @@
   right: 0;
   margin-right: auto;
   margin-left: auto;
+  transition: 0.8s all;
+  -webkit-transition: 0.8s all;
 }
 /** Preview of collections of uploaded documents **/
 .preview-container{