void init() {
if (MozillaVersion.CheckVersion(MozillaVersion.VERSION_XR10)) {
/*
* In XULRunner versions > 4, sending WM_GETDLGCODE to a WM_KEYDOWN's MSG hwnd answers 0
* instead of the expected DLGC_WANTALLKEYS. This causes the default traversal framework
* perform traversals outside of the Browser when it should not. Hook a Traverse listener
* to work around these problems.
*/
browser.addListener(
SWT.Traverse,
event -> {
switch (event.detail) {
case SWT.TRAVERSE_RETURN:
{
/* always veto the traversal */
event.doit = false;
break;
}
case SWT.TRAVERSE_TAB_NEXT:
case SWT.TRAVERSE_TAB_PREVIOUS:
{
/* veto the traversal whenever an element in the browser has focus */
long /*int*/[] result = new long /*int*/[1];
int rc = XPCOM.NS_GetServiceManager(result);
if (rc != XPCOM.NS_OK) Mozilla.error(rc);
if (result[0] == 0) Mozilla.error(XPCOM.NS_NOINTERFACE);
nsIServiceManager serviceManager = new nsIServiceManager(result[0]);
result[0] = 0;
byte[] aContractID =
MozillaDelegate.wcsToMbcs(null, XPCOM.NS_FOCUSMANAGER_CONTRACTID, true);
rc =
serviceManager.GetServiceByContractID(
aContractID,
IIDStore.GetIID(nsIFocusManager.class, MozillaVersion.VERSION_XR10),
result);
serviceManager.Release();
if (rc == XPCOM.NS_OK && result[0] != 0) {
nsIFocusManager focusManager = new nsIFocusManager(result[0]);
result[0] = 0;
rc = focusManager.GetFocusedElement(result);
focusManager.Release();
event.doit = result[0] == 0;
if (rc == XPCOM.NS_OK && result[0] != 0) {
new nsISupports(result[0]).Release();
}
}
break;
}
}
});
/* children created in getSiteHandle() should be destroyed whenever a page is left */
browser.addLocationListener(
new LocationAdapter() {
@Override
public void changing(LocationEvent event) {
Iterator<Composite> it = childWindows.iterator();
while (it.hasNext()) {
it.next().dispose();
}
childWindows.clear();
}
});
}
}
public static void main(String[] args) {
Display display = new Display();
final Shell shell = new Shell(display);
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = 3;
shell.setLayout(gridLayout);
ToolBar toolbar = new ToolBar(shell, SWT.NONE);
ToolItem itemBack = new ToolItem(toolbar, SWT.PUSH);
itemBack.setText("Back");
ToolItem itemForward = new ToolItem(toolbar, SWT.PUSH);
itemForward.setText("Forward");
ToolItem itemStop = new ToolItem(toolbar, SWT.PUSH);
itemStop.setText("Stop");
ToolItem itemRefresh = new ToolItem(toolbar, SWT.PUSH);
itemRefresh.setText("Refresh");
ToolItem itemGo = new ToolItem(toolbar, SWT.PUSH);
itemGo.setText("Go");
GridData data = new GridData();
data.horizontalSpan = 3;
toolbar.setLayoutData(data);
Label labelAddress = new Label(shell, SWT.NONE);
labelAddress.setText("Address");
final Text location = new Text(shell, SWT.BORDER);
data = new GridData();
data.horizontalAlignment = GridData.FILL;
data.horizontalSpan = 2;
data.grabExcessHorizontalSpace = true;
location.setLayoutData(data);
final Browser browser;
try {
browser = new Browser(shell, SWT.NONE);
} catch (SWTError e) {
System.out.println("Could not instantiate Browser: " + e.getMessage());
display.dispose();
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(shell, SWT.NONE);
data = new GridData(GridData.FILL_HORIZONTAL);
data.horizontalSpan = 2;
status.setLayoutData(data);
final ProgressBar progressBar = new ProgressBar(shell, SWT.NONE);
data = new GridData();
data.horizontalAlignment = GridData.END;
progressBar.setLayoutData(data);
/* event handling */
Listener listener =
new Listener() {
@Override
public void handleEvent(Event event) {
ToolItem item = (ToolItem) event.widget;
String string = item.getText();
if (string.equals("Back")) browser.back();
else if (string.equals("Forward")) browser.forward();
else if (string.equals("Stop")) browser.stop();
else if (string.equals("Refresh")) browser.refresh();
else if (string.equals("Go")) browser.setUrl(location.getText());
}
};
browser.addProgressListener(
new ProgressListener() {
@Override
public void changed(ProgressEvent event) {
if (event.total == 0) return;
int ratio = event.current * 100 / event.total;
progressBar.setSelection(ratio);
}
@Override
public void completed(ProgressEvent event) {
progressBar.setSelection(0);
}
});
browser.addStatusTextListener(
new StatusTextListener() {
@Override
public void changed(StatusTextEvent event) {
status.setText(event.text);
}
});
browser.addLocationListener(
new LocationListener() {
@Override
public void changed(LocationEvent event) {
if (event.top) location.setText(event.location);
}
@Override
public void changing(LocationEvent event) {}
});
itemBack.addListener(SWT.Selection, listener);
itemForward.addListener(SWT.Selection, listener);
itemStop.addListener(SWT.Selection, listener);
itemRefresh.addListener(SWT.Selection, listener);
itemGo.addListener(SWT.Selection, listener);
location.addListener(
SWT.DefaultSelection,
new Listener() {
@Override
public void handleEvent(Event e) {
browser.setUrl(location.getText());
}
});
shell.open();
browser.setUrl("http://eclipse.org");
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
display.dispose();
}
