/*******************************************************************************
* Copyright (c) 2007 Exadel, Inc. and Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is made available under the terms of the
* Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Exadel, Inc. and Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.common.meta.action.impl.handlers;
import java.util.*;
import org.jboss.tools.common.meta.action.*;
import org.jboss.tools.common.meta.action.impl.*;
import org.jboss.tools.common.meta.key.WizardKeys;
import org.jboss.tools.common.model.*;
import org.jboss.tools.common.model.plugin.ModelMessages;
import org.jboss.tools.common.model.util.*;
import org.jboss.tools.common.model.filesystems.XFileObject;
public class OpenWithChoiceHandler extends AbstractHandler {
public OpenWithChoiceHandler() {}
public boolean isEnabled(XModelObject object) {
if(object == null || object.getFileType() != XFileObject.FILE) return false;
return check(object);
}
public void executeHandler(XModelObject object, Properties p) throws XModelException {
if(!isEnabled(object)) return;
String displayName = WizardKeys.getMenuItemDisplayName(action, object == null ? null : object.getModelEntity());
if(!OpenWithExternalHandler.checkSave(displayName, object)) return;
ServiceDialog d = object.getModel().getService();
String ext = OpenWithHelper.getLogicalExtension(object, action);
XAttributeData a1 = HUtil.find(data, 0, XModelObjectConstants.ATTR_NAME);
XAttributeData a2 = HUtil.find(data, 0, "default"); //$NON-NLS-1$
XModelObject o = OpenWithHelper.getEditorObject(object.getModel(), ext);
String oldname = null;
if(o != null) {
oldname = o.get(XModelObjectConstants.XML_ATTR_NAME);
a1.setValue(oldname);
a2.setValue(XModelObjectConstants.YES);
} else {
a2.setValue(XModelObjectConstants.NO);
}
int i = d.showDialog("Open With", "Select external program", new String[]{ModelMessages.OK, ModelMessages.Cancel}, data[0], ServiceDialog.QUESTION);
if(i != 0) return;
DefaultCreateHandler.extractProperties(data[0]);
String en = HUtil.getValue(data, 0, XModelObjectConstants.ATTR_NAME);
boolean def = XModelObjectConstants.YES.equals(HUtil.getValue(data, 0, "default")); //$NON-NLS-1$
if(def && !en.equals(oldname)) {
changeDefaultEditor(object.getModel(), ext, en);
} else if(!def && en.equals(oldname)) {
removeDefaultEditor(object.getModel(), ext);
}
XModelObject editor = object.getModel().getByPath(OpenWithHelper.EDITORS + XModelObjectConstants.SEPARATOR + en);
String f = OpenWithHelper.getFileName(object);
OpenWithExternalHandler.start(displayName, f, editor);
}
protected boolean check(XModelObject object) {
String[] es = OpenWithHelper.getEditorList(object.getModel());
HUtil.hackAttributeConstraintList(data, 0, XModelObjectConstants.ATTR_NAME, es);
return es.length > 0;
}
static void changeDefaultEditor(XModel model, String ext, String editor) throws XModelException {
XModelObject o = model.getByPath(OpenWithHelper.EDITORS);
StringBuffer sb = new StringBuffer();
String ov = o.getAttributeValue("extensions"); //$NON-NLS-1$
String[] es = XModelObjectUtil.asStringArray(ov);
boolean done = false;
for (int i = 0; i < es.length; i++) {
if(!es[i].toLowerCase().startsWith(ext.toLowerCase() + ":")) { //$NON-NLS-1$
append(sb, es[i]);
} else {
done = true;
append(sb, ext + ":" + editor); //$NON-NLS-1$
}
}
if(!done) append(sb, ext + ":" + editor); //$NON-NLS-1$
applyChange(o, ov, sb.toString());
}
static void removeDefaultEditor(XModel model, String ext) throws XModelException {
XModelObject o = model.getByPath(OpenWithHelper.EDITORS);
StringBuffer sb = new StringBuffer();
String ov = o.getAttributeValue("extensions"); //$NON-NLS-1$
String[] es = XModelObjectUtil.asStringArray(ov);
for (int i = 0; i < es.length; i++) {
if(!es[i].toLowerCase().startsWith(ext.toLowerCase() + ":")) { //$NON-NLS-1$
append(sb, es[i]);
}
}
applyChange(o, ov, sb.toString());
}
private static void append(StringBuffer sb, String item) {
if(sb.length() > 0) sb.append(';');
sb.append(item);
}
private static void applyChange(XModelObject editors, String ov, String nv) throws XModelException {
if(nv.equals(ov)) return;
editors.getModel().changeObjectAttribute(editors, "extensions", nv); //$NON-NLS-1$
editors.getModel().saveOptions();
}
}