/*
* ARX: Powerful Data Anonymization
* Copyright 2012 - 2017 Fabian Prasser, Florian Kohlmayer and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.deidentifier.arx.gui.view.impl.menu;
import org.deidentifier.arx.gui.Controller;
import org.deidentifier.arx.gui.resources.Resources;
import org.deidentifier.arx.gui.view.SWTUtil;
import org.deidentifier.arx.gui.view.def.IDialog;
import org.deidentifier.arx.gui.view.impl.menu.DialogHelpConfig.Entry;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.LocationAdapter;
import org.eclipse.swt.browser.LocationEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.ToolBar;
import org.eclipse.swt.widgets.ToolItem;
import de.linearbits.swt.simplebrowser.HTMLBrowser;
/**
* A help dialog.
*
* @author Fabian Prasser
*/
public class DialogHelp extends TitleAreaDialog implements IDialog {
/** View */
private String id;
/** View */
private HTMLBrowser browser;
/** View */
private List list;
/** View */
private Image image;
/** Model */
private DialogHelpConfig config = new DialogHelpConfig();
/**
* Constructor.
*
* @param parentShell
* @param controller
* @param id
*/
public DialogHelp(final Shell parentShell, final Controller controller, final String id) {
super(parentShell);
this.id = id;
this.image = controller.getResources().getManagedImage("logo_small.png"); //$NON-NLS-1$
}
@Override
public boolean close() {
return super.close();
}
/**
* Returns the index of a url.
*
* @param location
* @return
*/
private int getIndexOf(String location) {
return config.getIndexForUrl(location);
}
@Override
protected void configureShell(Shell newShell) {
super.configureShell(newShell);
newShell.setImages(Resources.getIconSet(newShell.getDisplay()));
}
@Override
protected void createButtonsForButtonBar(final Composite parent) {
// Create OK Button
parent.setLayoutData(SWTUtil.createFillGridData());
final Button okButton = createButton(parent,
Window.OK,
Resources.getMessage("AboutDialog.15"), true); //$NON-NLS-1$
okButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(final SelectionEvent e) {
setReturnCode(Window.OK);
close();
}
});
}
@Override
protected Control createContents(Composite parent) {
Control contents = super.createContents(parent);
setTitle(Resources.getMessage("DialogHelp.1")); //$NON-NLS-1$
setMessage(Resources.getMessage("DialogHelp.2"), IMessageProvider.INFORMATION); //$NON-NLS-1$
if (image!=null) setTitleImage(image); //$NON-NLS-1$
return contents;
}
@Override
protected Control createDialogArea(final Composite parent) {
// Root
Composite root = new Composite(parent, SWT.NONE);
root.setLayoutData(SWTUtil.createFillHorizontallyGridData());
root.setLayout(new GridLayout(1, false));
// Toolbar
ToolBar toolbar = new ToolBar(root, SWT.NONE);
toolbar.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.HORIZONTAL_ALIGN_END));
final ToolItem back = new ToolItem(toolbar, SWT.PUSH);
back.setText(Resources.getMessage("DialogHelp.0")); //$NON-NLS-1$
back.setEnabled(false);
final ToolItem forward = new ToolItem(toolbar, SWT.PUSH);
forward.setText(Resources.getMessage("DialogHelp.3")); //$NON-NLS-1$
forward.setEnabled(false);
// Base
Composite base = new Composite(parent, SWT.NONE);
base.setLayoutData(SWTUtil.createFillGridData());
base.setLayout(SWTUtil.createGridLayout(2));
// List
list = new List(base, SWT.SINGLE | SWT.V_SCROLL);
for (Entry entry : config.getEntries()) {
list.add(entry.title);
}
list.setLayoutData(SWTUtil.createFillVerticallyGridData());
// Browser
browser = new HTMLBrowser(base, SWT.BORDER | SWT.DOUBLE_BUFFERED);
browser.setLayoutData(SWTUtil.createFillGridData());
// Listeners
back.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
try {browser.back();} catch (Exception e){}
}
});
forward.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
try {browser.forward();} catch (Exception e){}
}
});
browser.addLocationListener(new LocationAdapter() {
public void changed(LocationEvent event) {
back.setEnabled(browser.isBackEnabled());
forward.setEnabled(browser.isForwardEnabled());
try{list.select(getIndexOf(event.location));} catch (Exception e){}
}
});
list.addSelectionListener(new SelectionAdapter(){
public void widgetSelected(SelectionEvent arg0) {
try{browser.setUrl(getUrlOf(list.getSelectionIndex()));} catch (Exception e){}
}
});
// Init
int index = id == null ? 0 : config.getIndexForId(id);
list.select(index);
list.showSelection();
try{browser.setUrl(getUrlOf(index));} catch (Exception e){}
return parent;
}
@Override
protected Point getInitialSize() {
return new Point(930,600);
}
/**
* Returns the url for an index.
*
* @param index
* @return
*/
protected String getUrlOf(int index) {
return config.getUrlForIndex(index);
}
@Override
protected boolean isResizable() {
return true;
}
}