org.opencms.ui.client.CmsEditorStateConnector Maven / Gradle / Ivy
Show all versions of opencms-gwt Show documentation
/*
* 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.ui.editors.CmsEditorStateExtension;
import org.opencms.ui.shared.rpc.I_CmsEditorStateRPC;
import org.opencms.util.CmsStringUtil;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.RepeatingCommand;
import com.vaadin.client.ComponentConnector;
import com.vaadin.client.ServerConnector;
import com.vaadin.client.extensions.AbstractExtensionConnector;
import com.vaadin.shared.ui.Connect;
/**
* Client connector to the editor state extension.
*/
@Connect(CmsEditorStateExtension.class)
public class CmsEditorStateConnector extends AbstractExtensionConnector {
/** The serial version id. */
private static final long serialVersionUID = 7273974997472100908L;
/** The number of export method attemps. */
int m_exportRuns;
/** The RPC proxy. */
I_CmsEditorStateRPC m_rpc;
/**
* Constructor.
*/
public CmsEditorStateConnector() {
m_rpc = getRpcProxy(I_CmsEditorStateRPC.class);
}
/**
* @see com.vaadin.client.extensions.AbstractExtensionConnector#extend(com.vaadin.client.ServerConnector)
*/
@Override
protected void extend(final ServerConnector target) {
m_exportRuns = 0;
Scheduler.get().scheduleFixedDelay(new RepeatingCommand() {
public boolean execute() {
m_exportRuns++;
String frameName = ((ComponentConnector)target).getWidget().getElement().getAttribute("name");
if (CmsStringUtil.isEmptyOrWhitespaceOnly(frameName)) {
frameName = "edit";
}
return !exportMethod(frameName) && (m_exportRuns < 5);
}
}, 50);
}
/**
* Exports the setEditorChangedState method to the edit frame.
*
* @param frameName the edit frame name
*
* @return true indicates the frame was found and the method exported
*/
native boolean exportMethod(String frameName)/*-{
var self = this;
var frame = $wnd.frames[frameName];
if (frame == null && $wnd.frames.length > 0) {
for (i = 0; i < $wnd.frames.length; i++) {
if ($wnd.frames[i].frameElement.name == frameName) {
frame = $wnd.frames[i];
break;
}
}
}
if (frame != null) {
frame.cmsSetEditorChangedState = function(changed) {
[email protected]::setEditorChangedState(Z)(changed);
}
return true;
} else
return false;
}-*/;
/**
* Sets the editor changed state.
*
* @param changed indicates if the editor content was changed
*/
private void setEditorChangedState(boolean changed) {
m_rpc.setHasChanges(changed);
}
}