/*******************************************************************************
* Copyright (c) 2000, 2012 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.widgets;
import org.eclipse.swt.*;
import org.eclipse.swt.internal.cocoa.*;
/**
* Instances of this class are used to inform or warn the user.
* <dl>
* <dt><b>Styles:</b></dt>
* <dd>ICON_ERROR, ICON_INFORMATION, ICON_QUESTION, ICON_WARNING, ICON_WORKING</dd>
* <dd>OK, OK | CANCEL</dd>
* <dd>YES | NO, YES | NO | CANCEL</dd>
* <dd>RETRY | CANCEL</dd>
* <dd>ABORT | RETRY | IGNORE</dd>
* <dt><b>Events:</b></dt>
* <dd>(none)</dd>
* </dl>
* <p>
* Note: Only one of the styles ICON_ERROR, ICON_INFORMATION, ICON_QUESTION,
* ICON_WARNING and ICON_WORKING may be specified.
* </p><p>
* IMPORTANT: This class is <em>not</em> intended to be subclassed.
* </p>
*
* @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample, Dialog tab</a>
* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
* @noextend This class is not intended to be subclassed by clients.
*/
public class MessageBox extends Dialog {
String message = "";
int returnCode;
/**
* Constructs a new instance of this class given only its parent.
*
* @param parent a shell which will be the parent of the new instance
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*/
public MessageBox (Shell parent) {
this (parent, SWT.OK | SWT.ICON_INFORMATION | SWT.APPLICATION_MODAL);
}
/**
* Constructs a new instance of this class given its parent
* and a style value describing its behavior and appearance.
* <p>
* The style value is either one of the style constants defined in
* class <code>SWT</code> which is applicable to instances of this
* class, or must be built by <em>bitwise OR</em>'ing together
* (that is, using the <code>int</code> "|" operator) two or more
* of those <code>SWT</code> style constants. The class description
* lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
*
* @param parent a shell which will be the parent of the new instance
* @param style the style of dialog to construct
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*
* @see SWT#ICON_ERROR
* @see SWT#ICON_INFORMATION
* @see SWT#ICON_QUESTION
* @see SWT#ICON_WARNING
* @see SWT#ICON_WORKING
* @see SWT#OK
* @see SWT#CANCEL
* @see SWT#YES
* @see SWT#NO
* @see SWT#ABORT
* @see SWT#RETRY
* @see SWT#IGNORE
*/
public MessageBox (Shell parent, int style) {
super (parent, checkStyle (parent, checkStyle (style)));
if (Display.getSheetEnabled ()) {
if (parent != null && (style & SWT.SHEET) != 0) this.style |= SWT.SHEET;
}
checkSubclass ();
}
static int checkStyle (int style) {
int mask = (SWT.YES | SWT.NO | SWT.OK | SWT.CANCEL | SWT.ABORT | SWT.RETRY | SWT.IGNORE);
int bits = style & mask;
if (bits == SWT.OK || bits == SWT.CANCEL || bits == (SWT.OK | SWT.CANCEL)) return style;
if (bits == SWT.YES || bits == SWT.NO || bits == (SWT.YES | SWT.NO) || bits == (SWT.YES | SWT.NO | SWT.CANCEL)) return style;
if (bits == (SWT.RETRY | SWT.CANCEL) || bits == (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) return style;
style = (style & ~mask) | SWT.OK;
return style;
}
/**
* Returns the dialog's message, or an empty string if it does not have one.
* The message is a description of the purpose for which the dialog was opened.
* This message will be visible in the dialog while it is open.
*
* @return the message
*/
public String getMessage () {
return message;
}
/**
* Makes the dialog visible and brings it to the front
* of the display.
*
* @return the ID of the button that was selected to dismiss the
* message box (e.g. SWT.OK, SWT.CANCEL, etc.)
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li>
* </ul>
*/
public int open () {
NSAlert alert = (NSAlert) new NSAlert().alloc().init();
int alertType = OS.NSInformationalAlertStyle;
if ((style & SWT.ICON_ERROR) != 0) alertType = OS.NSCriticalAlertStyle;
if ((style & SWT.ICON_INFORMATION) != 0) alertType = OS.NSInformationalAlertStyle;
if ((style & SWT.ICON_QUESTION) != 0) alertType = OS.NSInformationalAlertStyle;
if ((style & SWT.ICON_WARNING) != 0) alertType = OS.NSWarningAlertStyle;
if ((style & SWT.ICON_WORKING) != 0) alertType = OS.NSInformationalAlertStyle;
alert.setAlertStyle(alertType);
int mask = (SWT.YES | SWT.NO | SWT.OK | SWT.CANCEL | SWT.ABORT | SWT.RETRY | SWT.IGNORE);
int bits = style & mask;
NSString title;
switch (bits) {
case SWT.OK:
title = NSString.stringWith(SWT.getMessage("SWT_OK"));
alert.addButtonWithTitle(title);
break;
case SWT.CANCEL:
title = NSString.stringWith(SWT.getMessage("SWT_Cancel"));
alert.addButtonWithTitle(title);
break;
case SWT.OK | SWT.CANCEL:
title = NSString.stringWith(SWT.getMessage("SWT_OK"));
alert.addButtonWithTitle(title);
title = NSString.stringWith(SWT.getMessage("SWT_Cancel"));
alert.addButtonWithTitle(title);
break;
case SWT.YES:
title = NSString.stringWith(SWT.getMessage("SWT_Yes"));
alert.addButtonWithTitle(title);
break;
case SWT.NO:
title = NSString.stringWith(SWT.getMessage("SWT_No"));
alert.addButtonWithTitle(title);
break;
case SWT.YES | SWT.NO:
title = NSString.stringWith(SWT.getMessage("SWT_Yes"));
alert.addButtonWithTitle(title);
title = NSString.stringWith(SWT.getMessage("SWT_No"));
alert.addButtonWithTitle(title);
// no.setKeyEquivalent(NSString.stringWith("\033"));
break;
case SWT.YES | SWT.NO | SWT.CANCEL:
title = NSString.stringWith(SWT.getMessage("SWT_Yes"));
alert.addButtonWithTitle(title);
title = NSString.stringWith(SWT.getMessage("SWT_Cancel"));
alert.addButtonWithTitle(title);
title = NSString.stringWith(SWT.getMessage("SWT_No"));
alert.addButtonWithTitle(title);
break;
case SWT.RETRY | SWT.CANCEL:
title = NSString.stringWith(SWT.getMessage("SWT_Retry"));
alert.addButtonWithTitle(title);
title = NSString.stringWith(SWT.getMessage("SWT_Cancel"));
alert.addButtonWithTitle(title);
break;
case SWT.ABORT | SWT.RETRY | SWT.IGNORE:
title = NSString.stringWith(SWT.getMessage("SWT_Abort"));
alert.addButtonWithTitle(title);
title = NSString.stringWith(SWT.getMessage("SWT_Ignore"));
alert.addButtonWithTitle(title);
title = NSString.stringWith(SWT.getMessage("SWT_Retry"));
alert.addButtonWithTitle(title);
break;
}
title = NSString.stringWith(this.title != null ? this.title : "");
NSPanel panel = alert.window();
panel.setTitle(title);
NSString message = NSString.stringWith(this.message != null ? this.message : "");
alert.setMessageText(message);
int response = 0;
long /*int*/ jniRef = 0;
SWTPanelDelegate delegate = null;
Display display = parent != null ? parent.getDisplay() : Display.getCurrent();
if ((style & SWT.SHEET) != 0) {
delegate = (SWTPanelDelegate)new SWTPanelDelegate().alloc().init();
jniRef = OS.NewGlobalRef(this);
if (jniRef == 0) error(SWT.ERROR_NO_HANDLES);
OS.object_setInstanceVariable(delegate.id, Display.SWT_OBJECT, jniRef);
alert.beginSheetModalForWindow(parent.view.window (), delegate, OS.sel_panelDidEnd_returnCode_contextInfo_, 0);
display.setModalDialog(this, panel);
if ((style & SWT.APPLICATION_MODAL) != 0) {
response = (int)/*64*/alert.runModal();
} else {
this.returnCode = 0;
NSWindow window = alert.window();
while (window.isVisible()) {
if (!display.readAndDispatch()) display.sleep();
}
response = this.returnCode;
}
} else {
display.setModalDialog(this, panel);
response = (int)/*64*/alert.runModal();
}
display.setModalDialog(null);
if (delegate != null) delegate.release();
if (jniRef != 0) OS.DeleteGlobalRef(jniRef);
alert.release();
switch (bits) {
case SWT.OK:
switch (response) {
case OS.NSAlertFirstButtonReturn:
return SWT.OK;
}
break;
case SWT.CANCEL:
switch (response) {
case OS.NSAlertFirstButtonReturn:
return SWT.CANCEL;
}
break;
case SWT.OK | SWT.CANCEL:
switch (response) {
case OS.NSAlertFirstButtonReturn:
return SWT.OK;
case OS.NSAlertSecondButtonReturn:
return SWT.CANCEL;
}
break;
case SWT.YES:
switch (response) {
case OS.NSAlertFirstButtonReturn:
return SWT.YES;
}
break;
case SWT.NO:
switch (response) {
case OS.NSAlertFirstButtonReturn:
return SWT.NO;
}
break;
case SWT.YES | SWT.NO:
switch (response) {
case OS.NSAlertFirstButtonReturn:
return SWT.YES;
case OS.NSAlertSecondButtonReturn:
return SWT.NO;
}
break;
case SWT.YES | SWT.NO | SWT.CANCEL:
switch (response) {
case OS.NSAlertFirstButtonReturn:
return SWT.YES;
case OS.NSAlertSecondButtonReturn:
return SWT.CANCEL;
case OS.NSAlertThirdButtonReturn:
return SWT.NO;
}
break;
case SWT.RETRY | SWT.CANCEL:
switch (response) {
case OS.NSAlertFirstButtonReturn:
return SWT.RETRY;
case OS.NSAlertSecondButtonReturn:
return SWT.CANCEL;
}
break;
case SWT.ABORT | SWT.RETRY | SWT.IGNORE:
switch (response) {
case OS.NSAlertFirstButtonReturn:
return SWT.ABORT;
case OS.NSAlertSecondButtonReturn:
return SWT.IGNORE;
case OS.NSAlertThirdButtonReturn:
return SWT.RETRY;
}
break;
}
return SWT.CANCEL;
}
void panelDidEnd_returnCode_contextInfo(long /*int*/ id, long /*int*/ sel, long /*int*/ alert, long /*int*/ returnCode, long /*int*/ contextInfo) {
this.returnCode = (int)/*64*/returnCode;
NSApplication application = NSApplication.sharedApplication();
application.endSheet(new NSAlert(alert).window(), returnCode);
}
/**
* Sets the dialog's message, which is a description of
* the purpose for which it was opened. This message will be
* visible on the dialog while it is open.
*
* @param string the message
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the string is null</li>
* </ul>
*/
public void setMessage (String string) {
if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
message = string;
}
}