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/*******************************************************************************
* Copyright (c) 2018 Red Hat 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:
* Red Hat - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.tests.gtk.snippets;
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.BrowserFunction;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
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.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
/*
* Title: [GTK3][Webkit2] Implement webkit2 support for browser function (Part 2: Java return a value from callback.)
* How to run: Snippet to execute javascript via input prompt, to test Browser Func return value ability.
* Bug description:
* Expected results:
* GTK Version(s):
*/
public class Bug527564_exec_hang {
static int count = 0;
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setSize(500, 600);
shell.setLayout(new RowLayout());
Composite leftBrowser = new Composite(shell, SWT.NONE);
Composite rightBrowser = new Composite(shell, SWT.None);
Button button = new Button (rightBrowser, SWT.PUSH);
button.setText("my button");
final Browser browser = makeBrowserWithConsole(leftBrowser, "theJavaFunction");
final Browser browser2 = makeBrowserWithConsole(rightBrowser, "theJavaFunction2");
new CustomFunction (browser, "theJavaFunction");
new CustomFunction2 (browser2, "theJavaFunction2");
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
/**
* @param leftBrowser
* @return
*/
private static Browser makeBrowserWithConsole(Composite leftBrowser, String funcName) {
GridLayout gridLayout = new GridLayout();
leftBrowser.setLayout(gridLayout);
final Text jsConsole = new Text(leftBrowser, SWT.BORDER);
jsConsole.setText("document.body.innerHTML = " + funcName + "(123)"); // Case where there are no paramaters.
jsConsole.setSelection(jsConsole.getText().length());
GridData data = new GridData(SWT.FILL, SWT.BEGINNING, true, false);
jsConsole.setLayoutData(data);
final Browser browser = new Browser(leftBrowser, SWT.NONE);
browser.setText("hello <b>world!</b>");
data = new GridData(SWT.FILL, SWT.FILL, true, true);
browser.setLayoutData(data);
jsConsole.addKeyListener(new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
if (e.keyCode == 13) { // 13 = Enter
browser.execute(jsConsole.getText());
}
}
});
Button loadNewPage = new Button(leftBrowser, SWT.PUSH);
loadNewPage.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false));
loadNewPage.setText("Load new Page");
loadNewPage.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
browser.setText("New page!" + count++);
}
});
return browser;
}
static class CustomFunction extends BrowserFunction { // copied from snippet 307
CustomFunction (Browser browser, String name) {
super (browser, name);
}
@Override
public Object function (Object[] arguments) {
System.out.println ("theJavaFunction() called from javascript with args:");
for (int i = 0; i < arguments.length; i++) {
Object arg = arguments[i];
if (arg == null) {
System.out.println ("\t-->null");
} else {
System.out.println ("\t-->" + arg.getClass ().getName () + ": " + arg.toString ());
}
}
return arguments;
}
}
static class CustomFunction2 extends BrowserFunction { // copied from snippet 307
CustomFunction2 (Browser browser, String name) {
super (browser, name);
}
@Override
public Object function (Object[] arguments) {
System.out.println ("theJavaFunction() called from javascript with args:");
for (int i = 0; i < arguments.length; i++) {
Object arg = arguments[i];
if (arg == null) {
System.out.println ("\t-->null");
} else {
System.out.println ("\t-->" + arg.getClass ().getName () + ": " + arg.toString ());
}
}
return arguments;
}
}
}
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