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Code polish, cleaned up comments

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nathan 2016-10-08 21:53:43 +02:00
parent 381e629e72
commit 82ab3fc7bd
1 changed files with 20 additions and 21 deletions
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41
src/dorkbox/systemTray/swing/SwingSystemTrayMenuPopup.java
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@ -35,13 +35,12 @@ import dorkbox.systemTray.SystemTray;
import dorkbox.util.OS; import dorkbox.util.OS;
/** /**
* This custom popup is required, because we cannot close this popup by clicking OUTSIDE the popup. For whatever reason, that does not * This custom popup is required if we want to be able to show images on the menu,
* work, so we must implement an "auto-hide" feature that checks if our mouse is still inside a menu every POPUP_HIDE_DELAY seconds
*/ */
class SwingSystemTrayMenuPopup extends JPopupMenu { class SwingSystemTrayMenuPopup extends JPopupMenu {
private static final long serialVersionUID = 1L; private static final long serialVersionUID = 1L;
// NOTE: we can use the "hidden dialog" focus window trick... only on windows and mac // NOTE: we can use the "hidden dialog" focus window trick...
private JDialog hiddenDialog; private JDialog hiddenDialog;
private volatile File iconFile; private volatile File iconFile;
@ -54,27 +53,27 @@ class SwingSystemTrayMenuPopup extends JPopupMenu {
// Initialize the hidden dialog as a headless, title-less dialog window // Initialize the hidden dialog as a headless, title-less dialog window
this.hiddenDialog = new JDialog((Frame)null, "Tray menu"); hiddenDialog = new JDialog((Frame)null, "Tray menu");
this.hiddenDialog.setUndecorated(true); hiddenDialog.setUndecorated(true);
this.hiddenDialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE); hiddenDialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
this.hiddenDialog.setAlwaysOnTop(true); hiddenDialog.setAlwaysOnTop(true);
// on Linux, the following two entries will **MOST OF THE TIME** prevent the hidden dialog from showing in the task-bar // on Linux, the following two entries will **MOST OF THE TIME** prevent the hidden dialog from showing in the task-bar
// on MacOS, you need "special permission" to not have a hidden dialog show on the dock. // on MacOS, you need "special permission" to not have a hidden dialog show on the dock.
this.hiddenDialog.getContentPane().setLayout(null); hiddenDialog.getContentPane().setLayout(null);
// this is a java 1.7 deal, so we have to use reflection to set this. It's not critical for this to be set, but it helps // this is java 1.7, so we have to use reflection. It's not critical for this to be set, but it helps hide the title in the taskbar
// this.hiddenDialog.setType(Window.Type.POPUP); // hiddenDialog.setType(Window.Type.POPUP);
if (OS.javaVersion >= 7) { if (OS.javaVersion >= 7) {
try { try {
Class<? extends JDialog> hiddenDialogClass = this.hiddenDialog.getClass(); Class<? extends JDialog> hiddenDialogClass = hiddenDialog.getClass();
Method[] methods = hiddenDialogClass.getMethods(); Method[] methods = hiddenDialogClass.getMethods();
for (Method method : methods) { for (Method method : methods) {
if (method.getName() if (method.getName()
.equals("setType")) { .equals("setType")) {
Class<Enum> cl = (Class<Enum>) Class.forName("java.awt.Window$Type"); Class<Enum> cl = (Class<Enum>) Class.forName("java.awt.Window$Type");
method.invoke(this.hiddenDialog, Enum.valueOf(cl, "POPUP")); method.invoke(hiddenDialog, Enum.valueOf(cl, "POPUP"));
break; break;
} }
} }
@ -83,8 +82,8 @@ class SwingSystemTrayMenuPopup extends JPopupMenu {
} }
} }
this.hiddenDialog.pack(); hiddenDialog.pack();
this.hiddenDialog.setBounds(0,0,0,0); hiddenDialog.setBounds(0,0,0,0);
addPopupMenuListener(new PopupMenuListener() { addPopupMenuListener(new PopupMenuListener() {
public void popupMenuWillBecomeVisible(PopupMenuEvent e) { public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
@ -100,7 +99,7 @@ class SwingSystemTrayMenuPopup extends JPopupMenu {
}); });
// Add the window focus listener to the hidden dialog // Add the window focus listener to the hidden dialog
this.hiddenDialog.addWindowFocusListener(new WindowFocusListener() { hiddenDialog.addWindowFocusListener(new WindowFocusListener() {
@Override @Override
public void windowLostFocus (WindowEvent we ) { public void windowLostFocus (WindowEvent we ) {
SwingSystemTrayMenuPopup.this.setVisible(false); SwingSystemTrayMenuPopup.this.setVisible(false);
@ -123,7 +122,7 @@ class SwingSystemTrayMenuPopup extends JPopupMenu {
image.flush(); image.flush();
// we set the dialog window to have the same icon as what is on the system tray // we set the dialog window to have the same icon as what is on the system tray
this.hiddenDialog.setIconImage(image); hiddenDialog.setIconImage(image);
} catch (IOException e) { } catch (IOException e) {
SystemTray.logger.error("Error setting the icon for the popup menu task tray dialog"); SystemTray.logger.error("Error setting the icon for the popup menu task tray dialog");
} }
@ -132,10 +131,10 @@ class SwingSystemTrayMenuPopup extends JPopupMenu {
void doShow(final int x, final int y) { void doShow(final int x, final int y) {
// critical to get the keyboard listeners working for the popup menu // critical to get the keyboard listeners working for the popup menu
setInvoker(this.hiddenDialog.getContentPane()); setInvoker(hiddenDialog.getContentPane());
this.hiddenDialog.setLocation(x, y); hiddenDialog.setLocation(x, y);
this.hiddenDialog.setVisible(true); hiddenDialog.setVisible(true);
setLocation(x, y); setLocation(x, y);
setVisible(true); setVisible(true);
@ -143,7 +142,7 @@ class SwingSystemTrayMenuPopup extends JPopupMenu {
} }
void close() { void close() {
this.hiddenDialog.setVisible(false); hiddenDialog.setVisible(false);
this.hiddenDialog.dispatchEvent(new WindowEvent(this.hiddenDialog, WindowEvent.WINDOW_CLOSING)); hiddenDialog.dispatchEvent(new WindowEvent(hiddenDialog, WindowEvent.WINDOW_CLOSING));
} }
} }