/*******************************************************************************
* Copyright (c) 2002, 2016 Innoopract Informationssysteme GmbH and others.
* All rights reserved. This program and the accompanying materials
* are 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:
* Innoopract Informationssysteme GmbH - initial API and implementation
* EclipseSource - ongoing development
******************************************************************************/
package org.eclipse.rap.demo.controls;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.rap.rwt.RWT;
import org.eclipse.rap.rwt.client.service.UrlLauncher;
import org.eclipse.rap.rwt.widgets.BrowserCallback;
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.BrowserFunction;
import org.eclipse.swt.browser.ProgressEvent;
import org.eclipse.swt.browser.ProgressListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.FillLayout;
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.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
final class BrowserTab extends ExampleTab {
private static final String PROP_PROGRESS_LISTENER = "progressListener";
private static final String DEFAULT_URL = "http://developer.eclipsesource.com/technology/crossplatform/#rap";
private static final String DEFAULT_HTML
= "<html>\n"
+ "<head>\n"
+ "<script type=\"text/javascript\">\n"
+ " function show( msg ) {\n"
+ " alert( msg );\n"
+ "}\n"
+ "</script>\n"
+ "</head>\n"
+ "<body>\n"
+ " <p id=\"a\">Hello World</p>\n"
+ "</body>\n"
+ "</html>";
private Browser browser;
private BrowserFunction function;
private boolean useBrowserCallback;
public BrowserTab() {
super( "Browser" );
}
@Override
protected void createStyleControls( Composite parent ) {
createStyleButton( "BORDER", SWT.BORDER );
createVisibilityButton();
createEnablementButton();
createBgColorButton();
createBgImageButton();
createUrlAndHTMLSelector( parent );
createPropertyCheckbox( "Add Progress Listener", PROP_PROGRESS_LISTENER );
final Button cbUseBrowserCallback = new Button( parent, SWT.CHECK );
cbUseBrowserCallback.setText( "Use BrowserCallback" );
cbUseBrowserCallback.setSelection( useBrowserCallback );
cbUseBrowserCallback.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
useBrowserCallback = cbUseBrowserCallback.getSelection();
}
} );
createExternalBrowserSelector( parent );
createBrowserFunctionSelector( parent );
}
@Override
protected void createExampleControls( Composite parent ) {
parent.setLayout( new FillLayout() );
browser = new Browser( parent, getStyle() );
if( hasCreateProperty( PROP_PROGRESS_LISTENER ) ) {
browser.addProgressListener( new ProgressListener() {
@Override
public void changed( final ProgressEvent event ) {
log( "changed: " + event );
}
@Override
public void completed( final ProgressEvent event ) {
log( "completed: " + event );
}
} );
}
registerControl( browser );
}
private void createUrlAndHTMLSelector( Composite parent ) {
Composite composite = new Composite( parent, SWT.NONE );
composite.setLayout( new GridLayout( 3, false ) );
Label lblURL = new Label( composite, SWT.NONE );
lblURL.setText( "URL" );
final Text txtURL = new Text( composite, SWT.BORDER );
txtURL.setText( DEFAULT_URL );
txtURL.setLayoutData( new GridData( 300, SWT.DEFAULT ) );
Button btnURL = new Button( composite, SWT.PUSH );
btnURL.setText( "Go" );
btnURL.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( final SelectionEvent event ) {
browser.setUrl( txtURL.getText() );
}
} );
final Label lblHTML = new Label( composite, SWT.NONE );
lblHTML.setText( "HTML" );
lblHTML.setLayoutData( new GridData( GridData.VERTICAL_ALIGN_BEGINNING ) );
final Text txtHTML = new Text( composite, SWT.BORDER | SWT.MULTI );
txtHTML.setText( DEFAULT_HTML );
txtHTML.setLayoutData( new GridData( 300, 100 ) );
Button btnHTML = new Button( composite, SWT.PUSH );
btnHTML.setText( "Go" );
btnHTML.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( final SelectionEvent event ) {
browser.setText( txtHTML.getText() );
}
} );
btnHTML.setLayoutData( new GridData( GridData.VERTICAL_ALIGN_BEGINNING ) );
Label lblExecute = new Label( composite, SWT.NONE );
lblExecute.setText( "Execute" );
final Text txtExecute = new Text( composite, SWT.BORDER | SWT.MULTI );
txtExecute.setLayoutData( new GridData( 300, 100 ) );
Button btnExecButton = new Button( composite, SWT.PUSH );
btnExecButton.setText( "Go" );
btnExecButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( final SelectionEvent event ) {
if( useBrowserCallback ) {
BrowserCallback browserCallback = new BrowserCallback() {
@Override
public void evaluationSucceeded( Object result ) {
log( "Execution was successful." );
}
@Override
public void evaluationFailed( Exception exception ) {
log( "Execution was not successful." );
}
};
browser.evaluate( txtExecute.getText(), browserCallback );
} else {
boolean result = browser.execute( txtExecute.getText() );
String msg = result
? "Execution was successful."
: "Execution was not successful.";
log( msg );
}
}
});
}
private void createExternalBrowserSelector( Composite parent ) {
Group group = new Group( parent, SWT.NONE );
group.setLayout( new GridLayout( 2, false ) );
group.setText( "UrlLauncher" );
Label lblUrl = new Label( group, SWT.NONE );
lblUrl.setText( "URL" );
final Text txtUrl = new Text( group, SWT.BORDER );
txtUrl.setLayoutData( grapExcessHorizontalSpace() );
txtUrl.setText( DEFAULT_URL );
txtUrl.setLayoutData( new GridData( 300, SWT.DEFAULT ) );
Button btnOpen = new Button( group, SWT.PUSH );
btnOpen.setLayoutData( horizontalSpan2() );
btnOpen.setText( "openURL( url )" );
btnOpen.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
UrlLauncher service = RWT.getClient().getService( UrlLauncher.class );
if( service != null ) {
service.openURL( txtUrl.getText() );
}
}
} );
Button btnMailTo = new Button( group, SWT.PUSH );
btnMailTo.setText( "mailto:..." );
btnMailTo.setLayoutData( horizontalSpan2() );
btnMailTo.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( final SelectionEvent event ) {
UrlLauncher service = RWT.getClient().getService( UrlLauncher.class );
if( service != null ) {
service.openURL( "mailto:someone@nowhere.org" );
}
}
} );
}
private void createBrowserFunctionSelector( Composite parent ) {
Group group = new Group( parent, SWT.NONE );
group.setText( "BrowserFunction" );
group.setLayout( new GridLayout( 3, false ) );
final Label lblHTML = new Label( group, SWT.NONE );
lblHTML.setText( "HTML" );
lblHTML.setLayoutData( new GridData( GridData.VERTICAL_ALIGN_BEGINNING ) );
final Text txtHTML = new Text( group, SWT.BORDER | SWT.MULTI );
txtHTML.setText( createBrowserFunctionHTML() );
txtHTML.setLayoutData( new GridData( 200, 200 ) );
Button btnHTML = new Button( group, SWT.PUSH );
btnHTML.setText( "Go" );
btnHTML.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( final SelectionEvent event ) {
browser.setText( txtHTML.getText() );
function = new CustomFunction( browser, "theJavaFunction" );
}
} );
btnHTML.setLayoutData( new GridData( GridData.VERTICAL_ALIGN_BEGINNING ) );
GridData buttonsGridData = new GridData();
buttonsGridData.horizontalSpan = 3;
Button createButton = new Button( group, SWT.PUSH );
createButton.setLayoutData( buttonsGridData );
createButton.setText( "Create theJavaFunction" );
createButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( final SelectionEvent event) {
function = new CustomFunction( browser, "theJavaFunction" );
}
} );
Button disposeButton = new Button( group, SWT.PUSH );
disposeButton.setLayoutData( buttonsGridData );
disposeButton.setText( "Dispose theJavaFunction" );
disposeButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( final SelectionEvent event) {
function.dispose();
}
} );
}
private static GridData horizontalSpan2() {
GridData result = new GridData();
result.horizontalSpan = 2;
return result;
}
private static GridData grapExcessHorizontalSpace() {
GridData result = new GridData( SWT.FILL, SWT.CENTER, true, false );
// result.grabExcessHorizontalSpace = true;
return result;
}
private String createBrowserFunctionHTML() {
StringBuffer buffer = new StringBuffer();
buffer.append( "<html>\n" );
buffer.append( "<head>\n" );
buffer.append( "<script language=\"JavaScript\">\n" );
buffer.append( "function function1() {\n" );
buffer.append( " var result;\n" );
buffer.append( " try {\n" );
buffer.append( " result = theJavaFunction(12, false, null, [3.6, ['swt', true]], 'eclipse');\n" );
buffer.append( " } catch (e) {\n" );
buffer.append( " alert('a java error occurred: ' + e.message);\n" );
buffer.append( " return;\n" );
buffer.append( " }\n" );
// buffer.append( " for (var i = 0; i < result.length; i++) {\n" );
// buffer.append( " alert('returned ' + i + ': ' + result[i]);\n" );
// buffer.append( " }\n" );
buffer.append( "}\n" );
buffer.append( "</script>\n" );
buffer.append( "</head>\n" );
buffer.append( "<body>\n" );
buffer.append( "<input id=button type=\"button\" value=\"Push to Invoke Java\" onclick=\"function1();\">\n" );
buffer.append( "</body>\n" );
buffer.append( "</html>\n" );
return buffer.toString();
}
private class CustomFunction extends BrowserFunction {
CustomFunction( Browser browser, String name ) {
super( browser, name );
}
@Override
public Object function( Object[] arguments ) {
StringBuffer buffer = new StringBuffer();
buffer.append( "theJavaFunction() called from javascript with args:\n" );
dumpArguments( arguments, "", buffer );
String title = "BrowserFunction called";
MessageDialog.openInformation( getShell(), title, buffer.toString() );
Object returnValue = new Object[]{
new Short( ( short )3 ),
new Boolean( true ),
null,
new Object[] { "a string", new Boolean( false ) },
"hi",
new Float( 2.0f / 3.0f )
};
//int z = 3 / 0; // uncomment to cause a java error instead
return returnValue;
}
private void dumpArguments( Object[] arguments, String tabString, StringBuffer buffer ) {
String tab = tabString + " ";
for( int i = 0; i < arguments.length; i++ ) {
Object arg = arguments[ i ];
if( arg == null ) {
buffer.append( tab );
buffer.append( "-->null\n" );
} else {
buffer.append( tab );
buffer.append( "-->" );
buffer.append( arg.getClass().getName() );
buffer.append( ": " );
buffer.append( arg.toString() );
buffer.append( "\n" );
if( arg.getClass().isArray() ) {
Object[] arg1 = ( Object[] )arg;
dumpArguments( arg1, tab, buffer );
}
}
}
}
}
}