public static boolean isHelperAvailable() {
if (!triedHelperInit) {
try {
System.loadLibrary("turbovnchelper");
helperAvailable = true;
} catch (java.lang.UnsatisfiedLinkError e) {
vlog.info("WARNING: Could not find TurboVNC Helper JNI library. If it is in a");
vlog.info(" non-standard location, then add -Djava.library.path=<dir>");
vlog.info(" to the Java command line to specify its location.");
vlog.info(" Full-screen mode may not work correctly.");
if (VncViewer.osEID())
vlog.info(" Keyboard grabbing and extended input device support will be disabled.");
else if (VncViewer.osGrab()) vlog.info(" Keyboard grabbing will be disabled.");
} catch (java.lang.Exception e) {
vlog.info("WARNING: Could not initialize TurboVNC Helper JNI library:");
vlog.info(" " + e.toString());
vlog.info(" Full-screen mode may not work correctly.");
if (VncViewer.osEID())
vlog.info(" Keyboard grabbing and extended input device support will be disabled.");
else if (VncViewer.osGrab()) vlog.info(" Keyboard grabbing will be disabled.");
}
}
triedHelperInit = true;
return helperAvailable;
}
@Override
public void dispose() {
super.dispose();
if (VncViewer.osEID()) cleanupExtInputHelper();
}
public Viewport(CConn cc_) {
cc = cc_;
updateTitle();
setFocusable(false);
setFocusTraversalKeysEnabled(false);
setIconImage(VncViewer.frameImage);
UIManager.getDefaults()
.put("ScrollPane.ancestorInputMap", new UIDefaults.LazyInputMap(new Object[] {}));
sp = new JScrollPane();
sp.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
sp.getViewport().setBackground(Color.BLACK);
InputMap im = sp.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
int ctrlAltShiftMask = Event.SHIFT_MASK | Event.CTRL_MASK | Event.ALT_MASK;
if (im != null) {
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_UP, ctrlAltShiftMask), "unitScrollUp");
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, ctrlAltShiftMask), "unitScrollDown");
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_LEFT, ctrlAltShiftMask), "unitScrollLeft");
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, ctrlAltShiftMask), "unitScrollRight");
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_UP, ctrlAltShiftMask), "scrollUp");
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_PAGE_DOWN, ctrlAltShiftMask), "scrollDown");
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_HOME, ctrlAltShiftMask), "scrollLeft");
im.put(KeyStroke.getKeyStroke(KeyEvent.VK_END, ctrlAltShiftMask), "scrollRight");
}
tb = new Toolbar(cc);
add(tb, BorderLayout.PAGE_START);
getContentPane().add(sp);
if (VncViewer.os.startsWith("mac os x")) {
macMenu = new MacMenuBar(cc);
setJMenuBar(macMenu);
if (VncViewer.getBooleanProperty("turbovnc.lionfs", true)) enableLionFS();
}
// NOTE: If Lion FS mode is enabled, then the viewport is only created once
// as a non-full-screen viewport, so we tell showToolbar() to ignore the
// full-screen state.
showToolbar(cc.showToolbar, canDoLionFS);
addWindowFocusListener(
new WindowAdapter() {
public void windowGainedFocus(WindowEvent e) {
if (sp.getViewport().getView() != null)
sp.getViewport().getView().requestFocusInWindow();
if (isVisible() && keyboardTempUngrabbed) {
vlog.info("Keyboard focus regained. Re-grabbing keyboard.");
grabKeyboardHelper(true);
keyboardTempUngrabbed = false;
}
}
public void windowLostFocus(WindowEvent e) {
if (cc.keyboardGrabbed && isVisible()) {
vlog.info("Keyboard focus lost. Temporarily ungrabbing keyboard.");
grabKeyboardHelper(false);
keyboardTempUngrabbed = true;
}
}
});
addWindowListener(
new WindowAdapter() {
public void windowClosing(WindowEvent e) {
cc.close();
}
});
addComponentListener(
new ComponentAdapter() {
public void componentResized(ComponentEvent e) {
if (cc.opts.scalingFactor == Options.SCALE_AUTO
|| cc.opts.scalingFactor == Options.SCALE_FIXEDRATIO) {
if ((sp.getSize().width != cc.desktop.scaledWidth)
|| (sp.getSize().height != cc.desktop.scaledHeight)) {
cc.desktop.setScaledSize();
sp.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
sp.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);
sp.validate();
if (getExtendedState() != JFrame.MAXIMIZED_BOTH && !cc.opts.fullScreen) {
sp.setSize(new Dimension(cc.desktop.scaledWidth, cc.desktop.scaledHeight));
int w = cc.desktop.scaledWidth + VncViewer.insets.left + VncViewer.insets.right;
int h = cc.desktop.scaledHeight + VncViewer.insets.top + VncViewer.insets.bottom;
if (tb.isVisible()) h += tb.getHeight();
if (cc.opts.scalingFactor == Options.SCALE_FIXEDRATIO) setSize(w, h);
}
}
} else if (cc.opts.desktopSize.mode == Options.SIZE_AUTO
&& !cc.firstUpdate
&& !cc.pendingServerResize) {
Dimension availableSize = cc.viewport.getAvailableSize();
if (availableSize.width >= 1
&& availableSize.height >= 1
&& (availableSize.width != cc.desktop.scaledWidth
|| availableSize.height != cc.desktop.scaledHeight)) {
sp.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
sp.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED);
sp.validate();
if (timer != null) timer.stop();
ActionListener actionListener =
new ActionListener() {
public void actionPerformed(ActionEvent e) {
Dimension availableSize = cc.viewport.getAvailableSize();
if (availableSize.width < 1 || availableSize.height < 1)
throw new ErrorException("Unexpected zero-size component");
cc.sendDesktopSize(availableSize.width, availableSize.height, true);
}
};
timer = new Timer(500, actionListener);
timer.setRepeats(false);
timer.start();
}
} else {
sp.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
sp.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED);
sp.validate();
}
if (cc.desktop.cursor != null) {
Cursor cursor = cc.desktop.cursor;
if (cursor.hotspot != null)
// hotspot will be null until the first cursor update is received
// from the server.
cc.setCursor(
cursor.width(),
cursor.height(),
cursor.hotspot,
(int[]) cursor.data,
cursor.mask);
}
if (((sp.getSize().width > cc.desktop.scaledWidth)
|| (sp.getSize().height > cc.desktop.scaledHeight))
&& cc.opts.desktopSize.mode != Options.SIZE_AUTO) {
int w = sp.getSize().width - adjustWidth;
int h = sp.getSize().height - adjustHeight;
dx =
(w <= cc.desktop.scaledWidth)
? 0
: (int) Math.floor((w - cc.desktop.scaledWidth) / 2);
dy =
(h <= cc.desktop.scaledHeight)
? 0
: (int) Math.floor((h - cc.desktop.scaledHeight) / 2);
} else {
dx = dy = 0;
}
repaint();
}
});
}