BrowserView.java

/* Copyright 2009 predic8 GmbH, www.predic8.com

   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 com.predic8.plugin.membrane.views;

import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTError;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.LocationEvent;
import org.eclipse.swt.browser.LocationListener;
import org.eclipse.swt.browser.ProgressEvent;
import org.eclipse.swt.browser.ProgressListener;
import org.eclipse.swt.browser.StatusTextEvent;
import org.eclipse.swt.browser.StatusTextListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.part.ViewPart;

import com.predic8.plugin.membrane.MembraneUIPlugin;
import com.predic8.plugin.membrane.resources.ImageKeys;

public class BrowserView extends ViewPart {

	public static final String VIEW_ID = "com.predic8.plugin.membrane.views.BrowserView";
	
	private Browser browser;
	
	private Text addressTextField;
	
	public BrowserView() {
		
	}

	@Override
	public void createPartControl(Composite parent) {
		GridLayout gridLayout = new GridLayout();
		gridLayout.numColumns = 3;
		parent.setLayout(gridLayout);
		ToolBar toolbar = new ToolBar(parent, SWT.NONE);
		
		ToolItem itemNavigateBackword = new ToolItem(toolbar, SWT.PUSH);
		itemNavigateBackword.setImage( MembraneUIPlugin.getDefault().getImageRegistry().getDescriptor(ImageKeys.IMAGE_ARROW_ROTATE_CLOCKWISE).createImage());
		itemNavigateBackword.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				browser.back();
			}
		});
		
		ToolItem itemNavigateForward = new ToolItem(toolbar, SWT.PUSH);
		itemNavigateForward.setImage( MembraneUIPlugin.getDefault().getImageRegistry().getDescriptor(ImageKeys.IMAGE_ARROW_ROTATE_COUNTER_CLOCKWISE).createImage());
		itemNavigateForward.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				browser.forward();
			}
		});
		
		ToolItem itemStopOperation = new ToolItem(toolbar, SWT.PUSH);
		itemStopOperation.setImage(MembraneUIPlugin.getDefault().getImageRegistry().getDescriptor(ImageKeys.IMAGE_STOP_OPERATION).createImage());
		itemStopOperation.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				browser.stop();
			}
		});
		
		ToolItem itemRefreshSite = new ToolItem(toolbar, SWT.PUSH);
		itemRefreshSite.setImage(MembraneUIPlugin.getDefault().getImageRegistry().getDescriptor(ImageKeys.IMAGE_ARROW_REFRESH).createImage());
		itemRefreshSite.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				browser.refresh();
			}
		});
		
		ToolItem itemLaunch = new ToolItem(toolbar, SWT.PUSH);
		itemLaunch.setImage(MembraneUIPlugin.getDefault().getImageRegistry().getDescriptor(ImageKeys.IMAGE_DOOR_IN).createImage());
		itemLaunch.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				browser.refresh();
			}
		});
		
		GridData data = new GridData();
		data.horizontalSpan = 3;
		toolbar.setLayoutData(data);

		Label labelAddress = new Label(parent, SWT.NONE);
		labelAddress.setText("Address");
		
		addressTextField = new Text(parent, SWT.BORDER);
		data = new GridData();
		data.horizontalAlignment = GridData.FILL;
		data.horizontalSpan = 2;
		data.grabExcessHorizontalSpace = true;
		addressTextField.setLayoutData(data);

		try {
			browser = new Browser(parent, SWT.NONE);
		} catch (SWTError e) {
			e.printStackTrace();
			return;
		}
		data = new GridData();
		data.horizontalAlignment = GridData.FILL;
		data.verticalAlignment = GridData.FILL;
		data.horizontalSpan = 3;
		data.grabExcessHorizontalSpace = true;
		data.grabExcessVerticalSpace = true;
		browser.setLayoutData(data);

		final Label status = new Label(parent, SWT.NONE);
		data = new GridData(GridData.FILL_HORIZONTAL);
		data.horizontalSpan = 2;
		status.setLayoutData(data);

		final ProgressBar progressBar = new ProgressBar(parent, SWT.NONE);
		data = new GridData();
		data.horizontalAlignment = GridData.END;
		progressBar.setLayoutData(data);

		browser.addProgressListener(new ProgressListener() {
			public void changed(ProgressEvent event) {
					if (event.total == 0) return;                            
					int ratio = event.current * 100 / event.total;
					progressBar.setSelection(ratio);
			}
			public void completed(ProgressEvent event) {
				progressBar.setSelection(0);
			}
		});
		browser.addStatusTextListener(new StatusTextListener() {
			public void changed(StatusTextEvent event) {
				status.setText(event.text);	
			}
		});
		browser.addLocationListener(new LocationListener() {
			public void changed(LocationEvent event) {
				if (event.top) addressTextField.setText(event.location);
			}
			public void changing(LocationEvent event) {
			}
		});
		
		addressTextField.addListener(SWT.DefaultSelection, new Listener() {
			public void handleEvent(Event e) {
				browser.setUrl(addressTextField.getText());
			}
		});

		browser.setUrl("http://www.predic8.com");

	}

	@Override
	public void setFocus() {
		Display.getDefault().asyncExec(new Runnable() {
			@Override
			public void run() {
				addressTextField.setFocus();
			}
		});
	}

}