diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/URLTransfer.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/URLTransfer.java | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/URLTransfer.java b/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/URLTransfer.java index cfb53dfc03..a1e97aac13 100644 --- a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/URLTransfer.java +++ b/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/carbon/org/eclipse/swt/dnd/URLTransfer.java @@ -1 +1,37 @@ -/*******************************************************************************
* Copyright (c) 20007 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.dnd;
import org.eclipse.swt.internal.carbon.*;
/**
* The class <code>URLTransfer</code> provides a platform specific mechanism
* for converting text in URL format represented as a java <code>String</code>
* to a platform specific representation of the data and vice versa. See
* <code>Transfer</code> for additional information. The string
* must contain the fully specified url.
*
* <p>An example of a java <code>String[]</code> containing a URL is shown
* below:</p>
*
* <code><pre>
* String url = "http://www.eclipse.org";
* </code></pre>
*/
public class URLTransfer extends ByteArrayTransfer {
static URLTransfer _instance = new URLTransfer();
static final String URL = "url "; //$NON-NLS-1$
static final int URL_ID = registerType(URL);
static final String URLN = "urln"; //$NON-NLS-1$
static final int URLN_ID = registerType(URLN);
private URLTransfer() {}
/**
* Returns the singleton instance of the URLTransfer class.
*
* @return the singleton instance of the URLTransfer class
*/
public static URLTransfer getInstance () {
return _instance;
}
/**
* This implementation of <code>javaToNative</code> converts a URL
* represented by a java <code>String</code> to a platform specific representation.
* For additional information see <code>Transfer#javaToNative</code>.
*
* @param object a java <code>String[]</code> containing a URL
* @param transferData an empty <code>TransferData</code> object; this
* object will be filled in on return with the platform specific format of the data
*/
public void javaToNative (Object object, TransferData transferData){
if (!checkURL(object) || !isSupportedType(transferData)) {
DND.error(DND.ERROR_INVALID_DATA);
}
transferData.result = -1;
String url = (String)object;
int count = url.length();
char[] chars = new char[count];
url.getChars(0, count, chars, 0);
int cfstring = OS.CFStringCreateWithCharacters(OS.kCFAllocatorDefault, chars, count);
if (cfstring == 0) return;
try {
CFRange range = new CFRange();
range.length = chars.length;
int encoding = OS.kCFStringEncodingUTF8;
int[] size = new int[1];
int numChars = OS.CFStringGetBytes(cfstring, range, encoding, (byte)'?', true, null, 0, size);
if (numChars == 0 || size[0] == 0) return;
byte[] buffer = new byte[size[0]];
numChars = OS.CFStringGetBytes(cfstring, range, encoding, (byte)'?', true, buffer, size [0], size);
if (numChars == 0) return;
transferData.data = new byte[][] {buffer};
transferData.result = 0;
} finally {
OS.CFRelease(cfstring);
}
}
/**
* This implementation of <code>nativeToJava</code> converts a platform specific
* representation of a URL to a java <code>String</code>.
* For additional information see <code>Transfer#nativeToJava</code>.
*
* @param transferData the platform specific representation of the data to be
* converted
* @return a java <code>String[]</code> containing a URL if the
* conversion was successful; otherwise null
*/
public Object nativeToJava(TransferData transferData){
if (!isSupportedType(transferData) || transferData.data == null) return null;
if (transferData.data.length == 0) return null;
byte[] buffer = transferData.data[0];
int encoding = OS.kCFStringEncodingUTF8;
int cfstring = OS.CFStringCreateWithBytes(OS.kCFAllocatorDefault, buffer, buffer.length, encoding, true);
if (cfstring == 0) return null;
char[] unescapedChars = new char[] {'%'};
int unescapedStr = OS.CFStringCreateWithCharacters(0, unescapedChars, unescapedChars.length);
int str = OS.CFURLCreateStringByReplacingPercentEscapes(OS.kCFAllocatorDefault, cfstring, unescapedStr);
OS.CFRelease(unescapedStr);
OS.CFRelease(cfstring);
if (str == 0) return null;
try {
int length = OS.CFStringGetLength(str);
if (length == 0) return null;
char[] chars = new char[length];
CFRange range = new CFRange();
range.length = length;
OS.CFStringGetCharacters(str, range, chars);
return new String(chars);
} finally {
OS.CFRelease(str);
}
}
protected int[] getTypeIds(){
return new int[] {URL_ID, URLN_ID};
}
protected String[] getTypeNames(){
return new String[] {URL, URLN};
}
boolean checkURL(Object object) {
return object != null && (object instanceof String) && ((String)object).length() > 0;
}
protected boolean validate(Object object) {
return checkURL(object);
}
}
\ No newline at end of file +/*******************************************************************************
* Copyright (c) 20007 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.dnd;
import org.eclipse.swt.internal.carbon.*;
/** + * The class <code>URLTransfer</code> provides a platform specific mechanism + * for converting text in URL format represented as a java <code>String</code> + * to a platform specific representation of the data and vice versa. See + * <code>Transfer</code> for additional information. The string + * must contain a fully specified url. + * + * <p>An example of a java <code>String</code> containing a URL is shown + * below:</p> + * + * <code><pre> + * String url = "http://www.eclipse.org"; + * </code></pre> + * + * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> + */
public class URLTransfer extends ByteArrayTransfer {
static URLTransfer _instance = new URLTransfer();
static final String URL = "url "; //$NON-NLS-1$
static final int URL_ID = registerType(URL);
static final String URLN = "urln"; //$NON-NLS-1$
static final int URLN_ID = registerType(URLN);
private URLTransfer() {}
/** + * Returns the singleton instance of the URLTransfer class. + * + * @return the singleton instance of the URLTransfer class + */
public static URLTransfer getInstance () {
return _instance;
}
/** + * This implementation of <code>javaToNative</code> converts a URL + * represented by a java <code>String</code> to a platform specific representation. + * For additional information see <code>Transfer#javaToNative</code>. + * + * @param object a java <code>String</code> containing a URL + * @param transferData an empty <code>TransferData</code> object; this + * object will be filled in on return with the platform specific format of the data + */
public void javaToNative (Object object, TransferData transferData){
if (!checkURL(object) || !isSupportedType(transferData)) {
DND.error(DND.ERROR_INVALID_DATA);
}
transferData.result = -1;
String url = (String)object;
int count = url.length();
char[] chars = new char[count];
url.getChars(0, count, chars, 0);
int cfstring = OS.CFStringCreateWithCharacters(OS.kCFAllocatorDefault, chars, count);
if (cfstring == 0) return;
try {
CFRange range = new CFRange();
range.length = chars.length;
int encoding = OS.kCFStringEncodingUTF8;
int[] size = new int[1];
int numChars = OS.CFStringGetBytes(cfstring, range, encoding, (byte)'?', true, null, 0, size);
if (numChars == 0 || size[0] == 0) return;
byte[] buffer = new byte[size[0]];
numChars = OS.CFStringGetBytes(cfstring, range, encoding, (byte)'?', true, buffer, size [0], size);
if (numChars == 0) return;
transferData.data = new byte[][] {buffer};
transferData.result = 0;
} finally {
OS.CFRelease(cfstring);
}
}
/** + * This implementation of <code>nativeToJava</code> converts a platform specific + * representation of a URL to a java <code>String</code>. + * For additional information see <code>Transfer#nativeToJava</code>. + * + * @param transferData the platform specific representation of the data to be + * converted + * @return a java <code>String</code> containing a URL if the + * conversion was successful; otherwise null + */
public Object nativeToJava(TransferData transferData){
if (!isSupportedType(transferData) || transferData.data == null) return null;
if (transferData.data.length == 0) return null;
byte[] buffer = transferData.data[0];
int encoding = OS.kCFStringEncodingUTF8;
int cfstring = OS.CFStringCreateWithBytes(OS.kCFAllocatorDefault, buffer, buffer.length, encoding, true);
if (cfstring == 0) return null;
char[] unescapedChars = new char[] {'%'};
int unescapedStr = OS.CFStringCreateWithCharacters(0, unescapedChars, unescapedChars.length);
int str = OS.CFURLCreateStringByReplacingPercentEscapes(OS.kCFAllocatorDefault, cfstring, unescapedStr);
OS.CFRelease(unescapedStr);
OS.CFRelease(cfstring);
if (str == 0) return null;
try {
int length = OS.CFStringGetLength(str);
if (length == 0) return null;
char[] chars = new char[length];
CFRange range = new CFRange();
range.length = length;
OS.CFStringGetCharacters(str, range, chars);
return new String(chars);
} finally {
OS.CFRelease(str);
}
}
protected int[] getTypeIds(){
return new int[] {URL_ID, URLN_ID};
}
protected String[] getTypeNames(){
return new String[] {URL, URLN};
}
boolean checkURL(Object object) {
return object != null && (object instanceof String) && ((String)object).length() > 0;
}
protected boolean validate(Object object) {
return checkURL(object);
}
}
\ No newline at end of file |