content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://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: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://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.gwt.client.ui.input.upload;
  
  import com.google.gwt.core.client.GWT;
  import com.google.gwt.core.client.JsArray;
  import com.google.gwt.dom.client.Document;
  import com.google.gwt.dom.client.InputElement;
  import com.google.gwt.event.dom.client.ChangeEvent;
  import com.google.gwt.event.dom.client.ChangeHandler;
  import com.google.gwt.event.dom.client.HasChangeHandlers;
  import com.google.gwt.event.shared.HandlerRegistration;
  import com.google.gwt.user.client.ui.CmsWidget;
  import com.google.gwt.user.client.ui.HasName;
  import com.google.gwt.user.client.ui.Widget;
  
  /**
   * A file input field.<p>
   *
   * @since 8.0.0
   */
  public class CmsFileInput extends CmsWidget implements HasName, HasChangeHandlers {
  
      /** The concrete file input implementation. */
      private I_CmsFileInputService m_impl;
  
      /** The input element. */
      private InputElement m_inputElement;
  
      /**
       * The default constructor.<p>
       */
      public CmsFileInput() {
  
          m_inputElement = Document.get().createFileInputElement();
          setElement(m_inputElement);
          setStyleName("gwt-FileUpload");
          m_impl = GWT.create(CmsFileInputImpl.class);
      }
  
      /**
       * @see com.google.gwt.event.dom.client.HasChangeHandlers#addChangeHandler(com.google.gwt.event.dom.client.ChangeHandler)
       */
      @Override
      public HandlerRegistration addChangeHandler(ChangeHandler handler) {
  
          return addDomHandler(handler, ChangeEvent.getType());
      }
  
      /**
       * Returns an array of CmsFile objects.<p>
       *
       * @return an array of CmsFile objects
       */
      public CmsFileInfo[] getFiles() {
  
          JsArray<CmsFileInfo> files = m_impl.getFiles(m_inputElement);
          CmsFileInfo[] result = new CmsFileInfo[files.length()];
          for (int i = 0; i < files.length(); ++i) {
              result[i] = files.get(i);
          }
          return result;
      }
  
      /**
       * @see com.google.gwt.user.client.ui.HasName#getName()
       */
      @Override
      public String getName() {
  
          return m_inputElement.getName();
      }
  
      /**
       * Returns <code>true</code> if multiple file selection is allowed, <code>false</code> otherwise.<p>
       *
       * @return <code>true</code> if multiple file selection is allowed, <code>false</code> otherwise
       */
      public boolean isAllowedMultipleFiles() {
  
          return m_impl.isAllowMultipleFiles(m_inputElement);
      }
  
      /**
       * Returns <code>true</code> if the input field is disabled <code>false</code> otherwise.<p>
       *
       * @return <code>true</code> if the input field is disabled <code>false</code> otherwise
       */
      public boolean isDisabled() {
  
          return m_inputElement.isDisabled();
      }
  
      /**
       * @see com.google.gwt.user.client.ui.Widget#onAttach()
       */
      @Override
      public void onAttach() {
  
          super.onAttach();
      }
  
      /**
       * @see com.google.gwt.user.client.ui.Widget#onDetach()
       */
      @Override
      public void onDetach() {
  
          super.onDetach();
      }
  
      /**
       * Sets the 'accept' attribute.
       *
       * @param acceptAttribute the new value for the 'accept' attribute
       */
      public void setAccept(String acceptAttribute) {
  
          m_inputElement.setAttribute("accept", acceptAttribute);
      }
  
      /**
       * Sets the the flag for allowing multiple file selection.<p>
       *
       * @param allow <code>true</code> if the multiple file selection should be allowed
       */
      public void setAllowMultipleFiles(boolean allow) {
  
          m_impl.setAllowMultipleFiles(m_inputElement, allow);
      }
  
      /**
       * Sets the disabled flag.<p>
       *
       * @param disabled <code>true</code> if the input field should be disabled
       */
      public void setDisabled(boolean disabled) {
  
          m_inputElement.setDisabled(disabled);
      }
  
      /**
       * @see com.google.gwt.user.client.ui.HasName#setName(java.lang.String)
       */
      @Override
      public void setName(String name) {
  
          m_inputElement.setName(name);
      }
  
      /**
       * @see com.google.gwt.user.client.ui.CmsWidget#setParent(com.google.gwt.user.client.ui.Widget)
       */
      @Override
      public void setParent(Widget parent) {
  
          super.setParent(parent);
      }
  
      /**
       * Returns <code>true</code> if the control supports the HTML5 FileAPI and <code>false</code> otherwise.<p>
       *
       * @return <code>true</code> if the control supports the HTML5 FileAPI and <code>false</code> otherwise
       */
      public boolean supportsFileAPI() {
  
          return m_impl.supportsFileAPI();
      }
  
  }
  