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/*
* Copyright (c) 2010, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package com.sun.glass.ui;
import com.sun.glass.ui.delegate.ClipboardDelegate;
import java.lang.annotation.Native;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.nio.ByteBuffer;
public class Clipboard {
/**
* predefined mime types
* Have to be synchronized with native realization.
*/
@Native public final static String TEXT_TYPE = "text/plain";
@Native public final static String HTML_TYPE = "text/html";
@Native public final static String RTF_TYPE = "text/rtf";
@Native public final static String URI_TYPE = "text/uri-list";//http://www.ietf.org/rfc/rfc2483.txt
@Native public final static String FILE_LIST_TYPE = "application/x-java-file-list";
@Native public final static String RAW_IMAGE_TYPE = "application/x-java-rawimage";
@Native public final static String DRAG_IMAGE = "application/x-java-drag-image";
@Native public final static String DRAG_IMAGE_OFFSET = "application/x-java-drag-image-offset";
@Native public final static String IE_URL_SHORTCUT_FILENAME = "text/ie-shortcut-filename";
/**
* predefined drop-effect actions and combinations.
*/
@Native public final static int ACTION_NONE = 0x0;
@Native public final static int ACTION_COPY = 0x1;
@Native public final static int ACTION_MOVE = 0x2;
@Native public final static int ACTION_REFERENCE = 0x40000000;
@Native public final static int ACTION_COPY_OR_MOVE = ACTION_COPY | ACTION_MOVE;
@Native public final static int ACTION_ANY = 0x4FFFFFFF;
/**
* predefined clipboard name for system shared buffers
*/
@Native public final static String DND = "DND";
@Native public final static String SYSTEM = "SYSTEM";
@Native public final static String SELECTION = "SELECTION";
private final static Map clipboards = new HashMap<>();
private final static ClipboardDelegate delegate = PlatformFactory.getPlatformFactory().createClipboardDelegate();
private final HashSet assistants = new HashSet<>();
private final String name;
private final Object localDataProtector = new Object();
private HashMap localSharedData;
private ClipboardAssistance dataSource;
/**
* combination of ACTION_XXXX constants
*/
protected int supportedActions = ACTION_COPY;
protected Clipboard (String name) {
Application.checkEventThread();
this.name = name;
}
public void add (ClipboardAssistance assistant) {
Application.checkEventThread();
synchronized(assistants) {
assistants.add(assistant);
}
}
public void remove (ClipboardAssistance assistant) {
Application.checkEventThread();
synchronized(localDataProtector) {
if (assistant==dataSource) {
dataSource = null;
}
}
boolean needClose;
synchronized(assistants) {
assistants.remove(assistant);
needClose = assistants.isEmpty();
}
if (needClose) {
synchronized(clipboards) {
clipboards.remove(name);
}
close();
}
}
protected void setSharedData (
ClipboardAssistance dataSource,
HashMap cacheData,
int supportedActions)
{
Application.checkEventThread();
synchronized(localDataProtector) {
localSharedData = (HashMap) cacheData.clone();
this.supportedActions = supportedActions;
this.dataSource = dataSource;
}
}
/**
*
* @param cacheData
* @param supportedActions combination of ACTION_XXXX consts
*/
public void flush(
ClipboardAssistance dataSource,
HashMap cacheData,
int supportedActions)
{
Application.checkEventThread();
setSharedData(dataSource, cacheData, supportedActions);
contentChanged();
}
public int getSupportedSourceActions() {
Application.checkEventThread();
return this.supportedActions;
}
public void setTargetAction(int actionDone) {
Application.checkEventThread();
actionPerformed(actionDone);
}
public void contentChanged() {
Application.checkEventThread();
final HashSet _assistants;
synchronized(assistants) {
_assistants = (HashSet )assistants.clone();
}
for (ClipboardAssistance assistant : _assistants) {
assistant.contentChanged();
}
}
/**
* Called by system and notifies about successful data transfer.
* Delete-on-move functionality should be implemented here.
* @param action Clipboard.ACTION_COPY, or Clipboard.ACTION_MOVE, or Clipboard.ACTION_REFERENCE
*/
public void actionPerformed(int action) {
Application.checkEventThread();
synchronized(localDataProtector) {
if (null!=dataSource) {
dataSource.actionPerformed(action);
}
}
}
public Object getData (String mimeType) {
Application.checkEventThread();
synchronized(localDataProtector) {
if (localSharedData == null) {
return null;
}
Object ret = localSharedData.get(mimeType);
return (ret instanceof DelayedCallback)
? ((DelayedCallback)ret).providedData()
: ret;
}
}
public String[] getMimeTypes () {
Application.checkEventThread();
synchronized(localDataProtector) {
if (localSharedData == null) {
return null;
}
Set mimes = localSharedData.keySet();
String [] ret = new String[mimes.size()];
int i = 0;
for (String mime : mimes) {
ret[i++] = mime;
}
return ret;
}
}
/* We have only one clipboard for each name.
* but it can be used by several @code{ClipboardAssistance}s
*/
protected static Clipboard get (String clipboardName) {
Application.checkEventThread();
/* return apropriate one*/
synchronized(clipboards) {
if (!clipboards.keySet().contains(clipboardName)) {
Clipboard newClipboard = delegate.createClipboard(clipboardName);
if (newClipboard == null) {
newClipboard = new Clipboard(clipboardName);
}
clipboards.put(clipboardName, newClipboard);
}
return clipboards.get(clipboardName);
}
}
public Pixels getPixelsForRawImage(byte rawimage[]) {
Application.checkEventThread();
ByteBuffer size = ByteBuffer.wrap(rawimage, 0, 8);
int width = size.getInt();
int height = size.getInt();
ByteBuffer pixels = ByteBuffer.wrap(rawimage, 8, rawimage.length - 8); // drop width+height
return Application.GetApplication().createPixels(width, height, pixels.slice());
}
@Override public String toString () {
return "Clipboard: " + name + "@" + hashCode();
}
protected void close() {
Application.checkEventThread();
synchronized(localDataProtector) {
dataSource = null;
}
}
public String getName() {
Application.checkEventThread();
return name;
}
public static String getActionString (int action) {
Application.checkEventThread();
StringBuilder ret = new StringBuilder("");
int[] test = {
ACTION_COPY,
ACTION_MOVE,
ACTION_REFERENCE};
String[] canDo = {
"copy",
"move",
"link"};
for (int i =0; i < 3; ++i) {
if ((test[i] & action) > 0) {
if (ret.length() > 0) {
ret.append(",");
}
ret.append(canDo[i]);
}
}
return ret.toString();
}
}
