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OpenCms is an enterprise-ready, easy to use website content management system based on Java and XML technology. Offering a complete set of features, OpenCms helps content managers worldwide to create and maintain beautiful websites fast and efficiently.

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/*
 * This library is part of OpenCms -
 * the Open Source Content Management System
 *
 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * For further information about Alkacon Software, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project website: http://www.opencms.org
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.opencms.ui.client;

import org.opencms.ade.upload.client.I_CmsUploadContext;
import org.opencms.ade.upload.client.ui.CmsDialogUploadButtonHandler;
import org.opencms.gwt.client.ui.input.upload.CmsFileInfo;
import org.opencms.ui.components.extensions.CmsUploadAreaExtension;
import org.opencms.ui.shared.components.CmsUploadAreaState;
import org.opencms.ui.shared.rpc.I_CmsUploadRpc;

import java.util.ArrayList;
import java.util.List;

import com.google.common.base.Supplier;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.core.client.JsArray;
import com.google.gwt.user.client.ui.Widget;
import com.vaadin.client.ComponentConnector;
import com.vaadin.client.ServerConnector;
import com.vaadin.client.extensions.AbstractExtensionConnector;
import com.vaadin.shared.ui.Connect;

/**
 * The upload area connector.

*/ @Connect(CmsUploadAreaExtension.class) public class CmsUploadAreaConnector extends AbstractExtensionConnector { /** The serial version id. */ private static final long serialVersionUID = 190108090241764065L; /** The RPC proxy. */ private I_CmsUploadRpc m_rpc; /** The widget to enhance. */ private Widget m_widget; /** * Constructor.

*/ public CmsUploadAreaConnector() { m_rpc = getRpcProxy(I_CmsUploadRpc.class); } /** * @see com.vaadin.client.ui.AbstractConnector#getState() */ @Override public CmsUploadAreaState getState() { return (CmsUploadAreaState)super.getState(); } /** * @see com.vaadin.client.extensions.AbstractExtensionConnector#extend(com.vaadin.client.ServerConnector) */ @Override protected void extend(ServerConnector target) { // Get the extended widget m_widget = ((ComponentConnector)target).getWidget(); initUploadZone(m_widget.getElement()); } /** * Called on drag out.

*/ void dragOut() { m_widget.removeStyleName("o-upload-drop"); } /** * Called on drag over.

*/ void dragOver() { m_widget.addStyleName("o-upload-drop"); } /** * Called once the upload is finished

* * @param files the uploaded files */ void uploadFinished(List files) { m_rpc.onUploadFinished(files); } /** * Initializes the upload drop zone event handlers.

* * @param element the drop zone element */ private native void initUploadZone(JavaScriptObject element)/*-{ // check for file api support if ((typeof FileReader == 'function' || typeof FileReader == 'object') && (typeof FormData == 'function' || typeof FormData == 'object')) { var self = this; function isFileDrag(event) { var result = true; var dt = event.dataTransfer; for (var i = 0; i < dt.types.length; i++) { // in case the types list contains text/html, we assume a DOM element is dragged, and no files if (dt.types[i] == "text/html") { result = false; break; } } return result; } function dragover(event) { if (isFileDrag(event)) { event.stopPropagation(); event.preventDefault(); [email protected]::dragOver()(); } } function dragleave(event) { if (isFileDrag(event)) { event.stopPropagation(); event.preventDefault(); [email protected]::dragOut()(); } } function drop(event) { if (isFileDrag(event)) { event.stopPropagation(); event.preventDefault(); [email protected]::dragOut()(); var dt = event.dataTransfer; var files = dt.files; [email protected]::openUploadWithFiles(Lcom/google/gwt/core/client/JavaScriptObject;)(files); } } element.addEventListener("dragover", dragover, false); element.addEventListener("dragexit", dragleave, false); element.addEventListener("dragleave", dragleave, false); element.addEventListener("dragend", dragleave, false); element.addEventListener("drop", drop, false); } }-*/; /** * Opens the upload dialog with the given file references to upload.

* * @param files the file references */ private void openUploadWithFiles(JavaScriptObject files) { JsArray cmsFiles = files.cast(); List fileObjects = new ArrayList(); for (int i = 0; i < cmsFiles.length(); ++i) { fileObjects.add(cmsFiles.get(i)); } CmsDialogUploadButtonHandler buttonHandler = new CmsDialogUploadButtonHandler( new Supplier() { /** * @see com.google.common.base.Supplier#get() */ public I_CmsUploadContext get() { return new I_CmsUploadContext() { public void onUploadFinished(List uploadedFiles) { uploadFinished(uploadedFiles); } }; } }); buttonHandler.setIsTargetRootPath(true); buttonHandler.setTargetFolder(getState().getTargetFolderRootPath()); buttonHandler.openDialogWithFiles(fileObjects); } }





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