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    The osx x86_64 swt jar as available in the Eclipse 4.6 (Neon) release for OSX. It is suitable for use with jface and other dependencies available from maven central in the org.eclipse.scout.sdk.deps group. The sources is copied from swt-4.6-cocoa-macosx-x86_64.zip from http://download.eclipse.org/eclipse/downloads/drops4/R-4.6-201606061100/ and javadoc is generated from sources.

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    /*******************************************************************************
 * Copyright (c) 2003, 2016 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.browser;

import org.eclipse.swt.SWT;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.mozilla.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

/**
 * This class implements the nsIDownload interface for mozilla
 * versions 1.4 - 1.7.x.  For mozilla version 1.8.x this interface
 * is implemented by class nsIDownload_1_8.  Later versions of
 * mozilla do not need to call this interface.
 */
class Download {
	XPCOMObject supports;
	XPCOMObject download;
	XPCOMObject progressDialog;
	XPCOMObject webProgressListener;
	nsIHelperAppLauncher helperAppLauncher;
	int refCount = 0;

	Shell shell;
	Label status;
	Button cancel;

Download () {
	createCOMInterfaces ();
}

int AddRef () {
	refCount++;
	return refCount;
}

void createCOMInterfaces () {
	/* Create each of the interfaces that this object implements */
	supports = new XPCOMObject (new int[] {2, 0, 0}) {
		@Override
		public long /*int*/ method0 (long /*int*/[] args) {return QueryInterface (args[0], args[1]);}
		@Override
		public long /*int*/ method1 (long /*int*/[] args) {return AddRef ();}
		@Override
		public long /*int*/ method2 (long /*int*/[] args) {return Release ();}
	};

	download = new XPCOMObject (new int[] {2, 0, 0, 7, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1}) {
		@Override
		public long /*int*/ method0 (long /*int*/[] args) {return QueryInterface (args[0], args[1]);}
		@Override
		public long /*int*/ method1 (long /*int*/[] args) {return AddRef ();}
		@Override
		public long /*int*/ method2 (long /*int*/[] args) {return Release ();}
		@Override
		public long /*int*/ method3 (long /*int*/[] args) {return Init (args[0], args[1], args[2], args[3], args[4], args[5], args[6]);}
		@Override
		public long /*int*/ method4 (long /*int*/[] args) {return GetSource (args[0]);}
		@Override
		public long /*int*/ method5 (long /*int*/[] args) {return GetTarget (args[0]);}
		@Override
		public long /*int*/ method6 (long /*int*/[] args) {return GetPersist (args[0]);}
		@Override
		public long /*int*/ method7 (long /*int*/[] args) {return GetPercentComplete (args[0]);}
		@Override
		public long /*int*/ method8 (long /*int*/[] args) {return GetDisplayName (args[0]);}
		@Override
		public long /*int*/ method9 (long /*int*/[] args) {return SetDisplayName (args[0]);}
		@Override
		public long /*int*/ method10 (long /*int*/[] args) {return GetStartTime (args[0]);}
		@Override
		public long /*int*/ method11 (long /*int*/[] args) {return GetMIMEInfo (args[0]);}
		@Override
		public long /*int*/ method12 (long /*int*/[] args) {return GetListener (args[0]);}
		@Override
		public long /*int*/ method13 (long /*int*/[] args) {return SetListener (args[0]);}
		@Override
		public long /*int*/ method14 (long /*int*/[] args) {return GetObserver (args[0]);}
		@Override
		public long /*int*/ method15 (long /*int*/[] args) {return SetObserver (args[0]);}
	};

	progressDialog = new XPCOMObject (new int[] {2, 0, 0, 7, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}) {
		@Override
		public long /*int*/ method0 (long /*int*/[] args) {return QueryInterface (args[0], args[1]);}
		@Override
		public long /*int*/ method1 (long /*int*/[] args) {return AddRef ();}
		@Override
		public long /*int*/ method2 (long /*int*/[] args) {return Release ();}
		@Override
		public long /*int*/ method3 (long /*int*/[] args) {return Init (args[0], args[1], args[2], args[3], args[4], args[5], args[6]);}
		@Override
		public long /*int*/ method4 (long /*int*/[] args) {return GetSource (args[0]);}
		@Override
		public long /*int*/ method5 (long /*int*/[] args) {return GetTarget (args[0]);}
		@Override
		public long /*int*/ method6 (long /*int*/[] args) {return GetPersist (args[0]);}
		@Override
		public long /*int*/ method7 (long /*int*/[] args) {return GetPercentComplete (args[0]);}
		@Override
		public long /*int*/ method8 (long /*int*/[] args) {return GetDisplayName (args[0]);}
		@Override
		public long /*int*/ method9 (long /*int*/[] args) {return SetDisplayName (args[0]);}
		@Override
		public long /*int*/ method10 (long /*int*/[] args) {return GetStartTime (args[0]);}
		@Override
		public long /*int*/ method11 (long /*int*/[] args) {return GetMIMEInfo (args[0]);}
		@Override
		public long /*int*/ method12 (long /*int*/[] args) {return GetListener (args[0]);}
		@Override
		public long /*int*/ method13 (long /*int*/[] args) {return SetListener (args[0]);}
		@Override
		public long /*int*/ method14 (long /*int*/[] args) {return GetObserver (args[0]);}
		@Override
		public long /*int*/ method15 (long /*int*/[] args) {return SetObserver (args[0]);}
		@Override
		public long /*int*/ method16 (long /*int*/[] args) {return Open (args[0]);}
		@Override
		public long /*int*/ method17 (long /*int*/[] args) {return GetCancelDownloadOnClose (args[0]);}
		@Override
		public long /*int*/ method18 (long /*int*/[] args) {return SetCancelDownloadOnClose ((int)/*64*/args[0]);}
		@Override
		public long /*int*/ method19 (long /*int*/[] args) {return GetDialog (args[0]);}
		@Override
		public long /*int*/ method20 (long /*int*/[] args) {return SetDialog (args[0]);}
	};

	webProgressListener = new XPCOMObject (new int[] {2, 0, 0, 4, 6, 3, 4, 3}) {
		@Override
		public long /*int*/ method0 (long /*int*/[] args) {return QueryInterface (args[0], args[1]);}
		@Override
		public long /*int*/ method1 (long /*int*/[] args) {return AddRef ();}
		@Override
		public long /*int*/ method2 (long /*int*/[] args) {return Release ();}
		@Override
		public long /*int*/ method3 (long /*int*/[] args) {return OnStateChange (args[0], args[1], (int)/*64*/args[2], (int)/*64*/args[3]);}
		@Override
		public long /*int*/ method4 (long /*int*/[] args) {return OnProgressChange (args[0], args[1], (int)/*64*/args[2], (int)/*64*/args[3], (int)/*64*/args[4], (int)/*64*/args[5]);}
		@Override
		public long /*int*/ method5 (long /*int*/[] args) {return OnLocationChange (args[0], args[1], args[2]);}
		@Override
		public long /*int*/ method6 (long /*int*/[] args) {return OnStatusChange (args[0], args[1], (int)/*64*/args[2], args[3]);}
		@Override
		public long /*int*/ method7 (long /*int*/[] args) {return OnSecurityChange (args[0], args[1], (int)/*64*/args[2]);}
	};
}

void disposeCOMInterfaces () {
	if (supports != null) {
		supports.dispose ();
		supports = null;
	}
	if (download != null) {
		download.dispose ();
		download = null;
	}
	if (progressDialog != null) {
		progressDialog.dispose ();
		progressDialog = null;
	}
	if (webProgressListener != null) {
		webProgressListener.dispose ();
		webProgressListener = null;
	}
}

long /*int*/ getAddress () {
	return progressDialog.getAddress ();
}

int QueryInterface (long /*int*/ riid, long /*int*/ ppvObject) {
	if (riid == 0 || ppvObject == 0) return XPCOM.NS_ERROR_NO_INTERFACE;
	nsID guid = new nsID ();
	XPCOM.memmove (guid, riid, nsID.sizeof);

	if (guid.Equals (XPCOM.NS_ISUPPORTS_IID)) {
		XPCOM.memmove (ppvObject, new long /*int*/[] {supports.getAddress ()}, C.PTR_SIZEOF);
		AddRef();
		return XPCOM.NS_OK;
	}
	if (guid.Equals (XPCOM.NS_IDOWNLOAD_IID)) {
		XPCOM.memmove (ppvObject, new long /*int*/[] {download.getAddress ()}, C.PTR_SIZEOF);
		AddRef();
		return XPCOM.NS_OK;
	}
	if (guid.Equals (XPCOM.NS_IPROGRESSDIALOG_IID)) {
		XPCOM.memmove (ppvObject, new long /*int*/[] {progressDialog.getAddress ()}, C.PTR_SIZEOF);
		AddRef();
		return XPCOM.NS_OK;
	}
	if (guid.Equals (IIDStore.GetIID (nsIWebProgressListener.class))) {
		XPCOM.memmove (ppvObject, new long /*int*/[] {webProgressListener.getAddress ()}, C.PTR_SIZEOF);
		AddRef();
		return XPCOM.NS_OK;
	}
	XPCOM.memmove (ppvObject, new long /*int*/[] {0}, C.PTR_SIZEOF);
	return XPCOM.NS_ERROR_NO_INTERFACE;
}

int Release () {
	refCount--;
	if (refCount == 0) disposeCOMInterfaces ();
	return refCount;
}

/* nsIDownload */

/* Note. The argument startTime is defined as a PRInt64. This translates into two java ints. */
int Init (long /*int*/ aSource, long /*int*/ aTarget, long /*int*/ aDisplayName, long /*int*/ aMIMEInfo, long /*int*/ startTime1, long /*int*/ startTime2, long /*int*/ aPersist) {
	nsIURI source = new nsIURI (aSource);
	long /*int*/ aSpec = XPCOM.nsEmbedCString_new ();
	int rc = source.GetHost (aSpec);
	if (rc != XPCOM.NS_OK) Mozilla.error (rc);
	int length = XPCOM.nsEmbedCString_Length (aSpec);
	long /*int*/ buffer = XPCOM.nsEmbedCString_get (aSpec);
	byte[] dest = new byte[length];
	XPCOM.memmove (dest, buffer, length);
	XPCOM.nsEmbedCString_delete (aSpec);
	String url = new String (dest);

	/*
	* As of mozilla 1.7 the second argument of the nsIDownload interface's
	* Init function changed from nsILocalFile to nsIURI.  Detect which of
	* these interfaces the second argument implements and act accordingly.
	*/
	String filename = null;
	nsISupports supports = new nsISupports (aTarget);
	long /*int*/[] result = new long /*int*/[1];
	rc = supports.QueryInterface (IIDStore.GetIID (nsIURI.class), result);
	if (rc == XPCOM.NS_OK) {	/* >= 1.7 */
		nsIURI target = new nsIURI (result[0]);
		result[0] = 0;
		long /*int*/ aPath = XPCOM.nsEmbedCString_new ();
		rc = target.GetPath (aPath);
		if (rc != XPCOM.NS_OK) Mozilla.error (rc);
		length = XPCOM.nsEmbedCString_Length (aPath);
		buffer = XPCOM.nsEmbedCString_get (aPath);
		dest = new byte[length];
		XPCOM.memmove (dest, buffer, length);
		XPCOM.nsEmbedCString_delete (aPath);
		filename = new String (dest);
		int separator = filename.lastIndexOf (System.getProperty ("file.separator"));	//$NON-NLS-1$
		filename = filename.substring (separator + 1);
		target.Release ();
	} else {	/* < 1.7 */
		nsILocalFile target = new nsILocalFile (aTarget);
		nsEmbedString aNativeTarget = new nsEmbedString ();
		rc = target.GetLeafName (aNativeTarget.getAddress());
		if (rc != XPCOM.NS_OK) Mozilla.error (rc);
		filename = aNativeTarget.toString ();
		aNativeTarget.dispose ();
	}

	Listener listener = new Listener () {
		@Override
		public void handleEvent (Event event) {
			if (event.widget == cancel) {
				shell.close ();
			}
			if (helperAppLauncher != null) {
				helperAppLauncher.Cancel ();
				helperAppLauncher.Release ();
			}
			shell = null;
			helperAppLauncher = null;
		}
	};
	shell = new Shell (SWT.DIALOG_TRIM);
	String msg = Compatibility.getMessage ("SWT_Download_File", new Object[] {filename}); //$NON-NLS-1$
	shell.setText (msg);
	GridLayout gridLayout = new GridLayout ();
	gridLayout.marginHeight = 15;
	gridLayout.marginWidth = 15;
	gridLayout.verticalSpacing = 20;
	shell.setLayout(gridLayout);
	msg = Compatibility.getMessage ("SWT_Download_Location", new Object[] {filename, url}); //$NON-NLS-1$
	new Label (shell, SWT.WRAP).setText (msg);
	status = new Label (shell, SWT.WRAP);
	msg = Compatibility.getMessage ("SWT_Download_Started"); //$NON-NLS-1$
	status.setText (msg);
	GridData data = new GridData ();
	data.grabExcessHorizontalSpace = true;
	data.grabExcessVerticalSpace = true;
	status.setLayoutData (data);

	cancel = new Button (shell, SWT.PUSH);
	cancel.setText (SWT.getMessage ("SWT_Cancel")); //$NON-NLS-1$
	data = new GridData ();
	data.horizontalAlignment = GridData.CENTER;
	cancel.setLayoutData (data);
	cancel.addListener (SWT.Selection, listener);
	shell.addListener (SWT.Close, listener);
	shell.pack ();
	shell.open ();
	return XPCOM.NS_OK;
}

int GetSource (long /*int*/ aSource) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int GetTarget (long /*int*/ aTarget) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int GetPersist (long /*int*/ aPersist) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int GetPercentComplete (long /*int*/ aPercentComplete) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int GetDisplayName (long /*int*/ aDisplayName) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int SetDisplayName (long /*int*/ aDisplayName) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int GetStartTime (long /*int*/ aStartTime) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int GetMIMEInfo (long /*int*/ aMIMEInfo) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int GetListener (long /*int*/ aListener) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int SetListener (long /*int*/ aListener) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int GetObserver (long /*int*/ aObserver) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int SetObserver (long /*int*/ aObserver) {
	if (aObserver != 0) {
		nsISupports supports = new nsISupports (aObserver);
		long /*int*/[] result = new long /*int*/[1];
		int rc = supports.QueryInterface (IIDStore.GetIID (nsIHelperAppLauncher.class), result);
		if (rc != XPCOM.NS_OK) Mozilla.error (rc);
		if (result[0] == 0) Mozilla.error (XPCOM.NS_ERROR_NO_INTERFACE);
		helperAppLauncher = new nsIHelperAppLauncher (result[0]);
	}
	return XPCOM.NS_OK;
}

/* nsIProgressDialog */
int Open (long /*int*/ aParent) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int GetCancelDownloadOnClose (long /*int*/ aCancelDownloadOnClose) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int SetCancelDownloadOnClose (int aCancelDownloadOnClose) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int GetDialog (long /*int*/ aDialog) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

int SetDialog (long /*int*/ aDialog) {
	return XPCOM.NS_ERROR_NOT_IMPLEMENTED;
}

/* nsIWebProgressListener */

int OnStateChange (long /*int*/ aWebProgress, long /*int*/ aRequest, int aStateFlags, int aStatus) {
	if ((aStateFlags & nsIWebProgressListener.STATE_STOP) != 0) {
		if (helperAppLauncher != null) helperAppLauncher.Release ();
		helperAppLauncher = null;
		if (shell != null && !shell.isDisposed ()) shell.dispose ();
		shell = null;
	}
	return XPCOM.NS_OK;
}

int OnProgressChange (long /*int*/ aWebProgress, long /*int*/ aRequest, int aCurSelfProgress, int aMaxSelfProgress, int aCurTotalProgress, int aMaxTotalProgress) {
	int currentKBytes = aCurTotalProgress / 1024;
	int totalKBytes = aMaxTotalProgress / 1024;
	if (shell != null && !shell.isDisposed ()) {
		Object[] arguments = {new Integer (currentKBytes), new Integer (totalKBytes)};
		String statusMsg = Compatibility.getMessage ("SWT_Download_Status", arguments); //$NON-NLS-1$
		status.setText (statusMsg);
		shell.layout (true);
		shell.getDisplay ().update ();
	}
	return XPCOM.NS_OK;
}

int OnLocationChange (long /*int*/ aWebProgress, long /*int*/ aRequest, long /*int*/ aLocation) {
	return XPCOM.NS_OK;
}

int OnStatusChange (long /*int*/ aWebProgress, long /*int*/ aRequest, int aStatus, long /*int*/ aMessage) {
	return XPCOM.NS_OK;
}

int OnSecurityChange (long /*int*/ aWebProgress, long /*int*/ aRequest, int state) {
	return XPCOM.NS_OK;
}
}




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