From: Mathieu Baudier <mbaudier@argeo.org>
Date: Sun, 2 Dec 2018 14:57:39 +0000 (+0100)
Subject: Working file drop
X-Git-Tag: argeo-commons-2.1.76~15
X-Git-Url: https://git.argeo.org/?a=commitdiff_plain;h=86ea60b48b0e813e5227be733d3cdd46f190665d;p=lgpl%2Fargeo-commons.git

Working file drop
---

diff --git a/org.argeo.cms.ui/src/org/argeo/cms/ui/fs/FileDrop.java b/org.argeo.cms.ui/src/org/argeo/cms/ui/fs/FileDrop.java
new file mode 100644
index 000000000..94b2bc2cb
--- /dev/null
+++ b/org.argeo.cms.ui/src/org/argeo/cms/ui/fs/FileDrop.java
@@ -0,0 +1,71 @@
+package org.argeo.cms.ui.fs;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.eclipse.rap.fileupload.FileDetails;
+import org.eclipse.rap.fileupload.FileUploadHandler;
+import org.eclipse.rap.fileupload.FileUploadReceiver;
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.rap.rwt.client.ClientFile;
+import org.eclipse.rap.rwt.client.service.ClientFileUploader;
+import org.eclipse.rap.rwt.dnd.ClientFileTransfer;
+import org.eclipse.swt.dnd.DND;
+import org.eclipse.swt.dnd.DropTarget;
+import org.eclipse.swt.dnd.DropTargetAdapter;
+import org.eclipse.swt.dnd.DropTargetEvent;
+import org.eclipse.swt.dnd.Transfer;
+import org.eclipse.swt.widgets.Control;
+
+public class FileDrop {
+	private final static Log log = LogFactory.getLog(FileDrop.class);
+
+	public void createDropTarget(Control control) {
+		DropTarget dropTarget = new DropTarget(control, DND.DROP_MOVE | DND.DROP_COPY);
+		dropTarget.setTransfer(new Transfer[] { ClientFileTransfer.getInstance() });
+		dropTarget.addDropListener(new DropTargetAdapter() {
+			private static final long serialVersionUID = 5361645765549463168L;
+
+			@Override
+			public void dropAccept(DropTargetEvent event) {
+				if (!ClientFileTransfer.getInstance().isSupportedType(event.currentDataType)) {
+					event.detail = DND.DROP_NONE;
+				}
+			}
+
+			@Override
+			public void drop(DropTargetEvent event) {
+				handleFileDrop(control, (ClientFile[]) event.data);
+			}
+		});
+	}
+
+	private void handleFileDrop(Control control, ClientFile[] clientFiles) {
+		ClientFileUploader service = RWT.getClient().getService(ClientFileUploader.class);
+//		DiskFileUploadReceiver receiver = new DiskFileUploadReceiver();
+		FileUploadReceiver receiver = new FileUploadReceiver() {
+
+			@Override
+			public void receive(InputStream stream, FileDetails details) throws IOException {
+				if (log.isDebugEnabled())
+					log.debug("Process upload of " + details.getFileName() + " (" + details.getContentType() + ")");
+				control.getDisplay()
+						.syncExec(() -> processUpload(stream, details.getFileName(), details.getContentType()));
+			}
+		};
+		FileUploadHandler handler = new FileUploadHandler(receiver);
+//		    handler.setMaxFileSize( sizeLimit );
+//		    handler.setUploadTimeLimit( timeLimit );
+		service.submit(handler.getUploadUrl(), clientFiles);
+//		for (File file : receiver.getTargetFiles()) {
+//			paths.add(file.toPath());
+//		}
+	}
+
+	/** Executed in UI thread */
+	protected void processUpload(InputStream in, String fileName, String contetnType) {
+
+	}
+}