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org.webswing.dispatch.WebPaintDispatcher Maven / Gradle / Ivy
package org.webswing.dispatch;
import org.webswing.Constants;
import org.webswing.model.internal.ExitMsgInternal;
import org.webswing.model.internal.OpenFileResultMsgInternal;
import org.webswing.model.s2c.*;
import org.webswing.model.s2c.FileDialogEventMsg.FileDialogEventType;
import org.webswing.model.s2c.LinkActionMsg.LinkActionType;
import org.webswing.toolkit.WebCursor;
import org.webswing.toolkit.WebToolkit;
import org.webswing.toolkit.WebWindowPeer;
import org.webswing.toolkit.api.clipboard.PasteRequestContext;
import org.webswing.toolkit.api.clipboard.WebswingClipboardData;
import org.webswing.toolkit.extra.IsolatedFsShellFolderManager;
import org.webswing.toolkit.extra.WebRepaintManager;
import org.webswing.toolkit.util.DeamonThreadFactory;
import org.webswing.toolkit.util.Logger;
import org.webswing.toolkit.util.Services;
import org.webswing.toolkit.util.Util;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.Serializable;
import java.lang.reflect.Field;
import java.net.URI;
import java.util.*;
import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
public class WebPaintDispatcher {
public static final Object webPaintLock = new Object();
private volatile Map> areasToUpdate = new HashMap>();
private volatile WindowMoveActionMsg moveAction;
private volatile FocusEventMsg focusEvent;
private volatile boolean clientReadyToReceive = true;
private long lastReadyStateTime;
private JFileChooser fileChooserDialog;
private JDialog clipboardDialog;
private ScheduledExecutorService contentSender = Executors.newScheduledThreadPool(1, DeamonThreadFactory.getInstance("Webswing Paint Dispatcher"));
public WebPaintDispatcher() {
final Long ackTimeout = Long.getLong(Constants.PAINT_ACK_TIMEOUT, 5000);
Runnable sendUpdate = new Runnable() {
public void run() {
try {
AppFrameMsgOut json;
Map> windowImages = null;
Map windowWebImages = null;
Map> windowNonVisibleAreas;
Map> currentAreasToUpdate = null;
synchronized (Util.getWebToolkit().getTreeLock()) {
synchronized (webPaintLock) {
if (clientReadyToReceive) {
WebRepaintManager.processDirtyComponents();
lastReadyStateTime = System.currentTimeMillis();
}
if ((areasToUpdate.size() == 0 && moveAction == null) || !clientReadyToReceive) {
if (!clientReadyToReceive && (System.currentTimeMillis() - lastReadyStateTime) > ackTimeout) {
Logger.debug("contentSender.readyToReceive re-enabled after timeout");
if (Util.isDD()) {
Services.getDirectDrawService().resetCache();
}
clientReadyToReceive = true;
}
return;
}
currentAreasToUpdate = areasToUpdate;
areasToUpdate = Util.postponeNonShowingAreas(currentAreasToUpdate);
if (currentAreasToUpdate.size() == 0 && moveAction == null) {
return;
}
windowNonVisibleAreas = Util.getWebToolkit().getWindowManager().extractNonVisibleAreas();
json = Util.fillJsonWithWindowsData(currentAreasToUpdate, windowNonVisibleAreas);
if (Util.isDD()) {
windowWebImages = new HashMap();
windowWebImages = Util.extractWindowWebImages(json, windowWebImages);
} else {
windowImages = new HashMap>();
windowImages = Util.extractWindowImages(json, windowImages);
}
if (moveAction != null) {
json.setMoveAction(moveAction);
moveAction = null;
}
if (focusEvent != null) {
json.setFocusEvent(focusEvent);
focusEvent = null;
}
clientReadyToReceive = false;
}
}
Logger.trace("contentSender:paintJson", json);
if (Util.isDD()) {
Logger.trace("contentSender:pngWebImageEncodingStart", json.hashCode());
Util.encodeWindowWebImages(windowWebImages, json);
Logger.trace("contentSender:pngWebImageEncodingDone", json.hashCode());
} else {
Logger.trace("contentSender:pngEncodingStart", json.hashCode());
Util.encodeWindowImages(windowImages, json);
Logger.trace("contentSender:pngEncodingDone", json.hashCode());
}
json.setSendTimestamp("" + System.currentTimeMillis());
sendObject(json);
} catch (Throwable e) {
Logger.error("contentSender:error", e);
}
}
};
Integer delay = Integer.getInteger("webswing.drawDelayMs", 33);
contentSender.scheduleWithFixedDelay(sendUpdate, delay, delay, TimeUnit.MILLISECONDS);
}
public void clientReadyToReceive() {
synchronized (webPaintLock) {
clientReadyToReceive = true;
}
}
public void sendObject(Serializable object) {
Logger.debug("WebPaintDispatcher:sendJsonObject", object);
Services.getConnectionService().sendObject(object);
}
public void notifyWindowAreaRepainted(String guid, Rectangle repaintedArea) {
synchronized (webPaintLock) {
if (validBounds(repaintedArea)) {
if (areasToUpdate.containsKey(guid)) {
Set rset = areasToUpdate.get(guid);
rset.add(repaintedArea);
} else {
Set rset = new HashSet();
rset.add(repaintedArea);
areasToUpdate.put(guid, rset);
}
Logger.trace("WebPaintDispatcher:notifyWindowAreaRepainted", guid, repaintedArea);
}
}
}
public void notifyWindowBoundsChanged(String guid, Rectangle newBounds) {
synchronized (webPaintLock) {
if (validBounds(newBounds)) {
Set rset;
if (areasToUpdate.containsKey(guid)) {
rset = areasToUpdate.get(guid);
rset.clear();
} else {
rset = new HashSet();
areasToUpdate.put(guid, rset);
}
rset.add(newBounds);
Logger.trace("WebPaintDispatcher:notifyWindowBoundsChanged", guid, newBounds);
}
}
}
private boolean validBounds(Rectangle newBounds) {
if (newBounds.width > 0 && newBounds.height > 0) {
return true;
} else {
return false;
}
}
public void notifyWindowClosed(String guid) {
synchronized (webPaintLock) {
areasToUpdate.remove(guid);
}
AppFrameMsgOut f = new AppFrameMsgOut();
WindowMsg fdEvent = new WindowMsg();
fdEvent.setId(guid);
f.setClosedWindow(fdEvent);
Logger.debug("WebPaintDispatcher:notifyWindowClosed", guid);
sendObject(f);
}
public void notifyWindowRepaint(Window w) {
Rectangle bounds = w.getBounds();
WebWindowPeer peer = (WebWindowPeer) WebToolkit.targetToPeer(w);
if(peer!=null){
notifyWindowAreaRepainted(peer.getGuid(), new Rectangle(0, 0, bounds.width, bounds.height));
}
}
@SuppressWarnings("restriction")
public void notifyWindowRepaintAll() {
notifyBackgroundRepainted(new Rectangle(Util.getWebToolkit().getScreenSize()));
for (Window w : Util.getAllWindows()) {
if (w.isShowing()) {
notifyWindowRepaint(w);
}
}
}
public void notifyBackgroundRepainted(Rectangle toRepaint) {
notifyWindowAreaRepainted(WebToolkit.BACKGROUND_WINDOW_ID, toRepaint);
}
public void notifyOpenLinkAction(URI uri) {
AppFrameMsgOut f = new AppFrameMsgOut();
LinkActionMsg linkAction = new LinkActionMsg(LinkActionType.url, uri.toString());
f.setLinkAction(linkAction);
Logger.info("WebPaintDispatcher:notifyOpenLinkAction", uri);
sendObject(f);
}
@SuppressWarnings("restriction")
public void resetWindowsPosition(int oldWidht, int oldHeight) {
for (Window w : Util.getAllWindows()) {
WebWindowPeer peer = (WebWindowPeer) WebToolkit.targetToPeer(w);
if (peer != null) {
Rectangle b = w.getBounds();
Dimension current = Util.getWebToolkit().getScreenSize();
if (peer.getTarget() instanceof JFrame) {
JFrame frame = (JFrame) peer.getTarget();
//maximized window - auto resize
if (frame.getExtendedState() == Frame.MAXIMIZED_BOTH) {
w.setLocation(0, 0);
w.setBounds(0, 0, current.width, current.height);
}
} else {
// move the window position to same position relative to
// previous size;
if (oldWidht != 0 && oldHeight != 0) {
int xCenterWinPoint = b.x + (b.width / 2);
int yCenterWinPoint = b.y + (b.height / 2);
boolean xCenterValid = b.width < oldWidht;
boolean yCenterValid = b.height < oldHeight;
double xrelative = (double) xCenterWinPoint / (double) oldWidht;
double yrelative = (double) yCenterWinPoint / (double) oldHeight;
int xCenterCurrent = (int) (current.width * xrelative);
int yCenterCurrent = (int) (current.height * yrelative);
int newx = xCenterCurrent - (b.width / 2);
int newy = yCenterCurrent - (b.height / 2);
if (xCenterValid || newx < b.x) {
b.x = newx >= 0 ? newx : 0;
}
if (yCenterValid || newy < b.y) {
b.y = newy >= 0 ? newy : 0;
}
w.setLocation(b.x, b.y);
}
peer.setBounds(b.x, b.y, b.width, b.height, 0);
}
}
}
}
public void notifyWindowMoved(Window w, Rectangle from, Rectangle to) {
synchronized (webPaintLock) {
if (moveAction == null) {
moveAction = new WindowMoveActionMsg(from.x, from.y, to.x, to.y, from.width, from.height);
notifyRepaintOffScreenAreas(w, moveAction);
} else if (moveAction.getDx() == from.x && moveAction.getDy() == from.y && moveAction.getWidth() == from.width && moveAction.getHeight() == from.height) {
moveAction.setDx(to.x);
moveAction.setDy(to.y);
notifyRepaintOffScreenAreas(w, moveAction);
} else {
notifyWindowRepaint(w);
}
}
}
@SuppressWarnings("restriction")
private void notifyRepaintOffScreenAreas(Window w, WindowMoveActionMsg m) {
Rectangle screen = new Rectangle(Util.getWebToolkit().getScreenSize());
Rectangle before = new Rectangle(m.getSx(), m.getSy(), m.getWidth(), m.getHeight());
Rectangle after = new Rectangle(m.getDx(), m.getDy(), m.getWidth(), m.getHeight());
int xdiff = m.getSx() - m.getDx();
int ydiff = m.getSy() - m.getDy();
Rectangle[] invisibleBefore = SwingUtilities.computeDifference(before, screen);
if (invisibleBefore.length != 0) {
for (Rectangle r : invisibleBefore) {
r.setLocation(r.x - xdiff, r.y - ydiff);
}
Rectangle[] invisibleAfter = SwingUtilities.computeDifference(after, screen);
List toRepaint = Util.joinRectangles(Util.getGrid(Arrays.asList(invisibleBefore), Arrays.asList(invisibleAfter)));
WebWindowPeer peer = (WebWindowPeer) WebToolkit.targetToPeer(w);
for (Rectangle r : toRepaint) {
r.setLocation(r.x - w.getX(), r.y - w.getY());
notifyWindowAreaRepainted(peer.getGuid(), r);
}
}
}
public void notifyCursorUpdate(Cursor cursor) {
notifyCursorUpdate(cursor, null);
}
public void notifyCursorUpdate(Cursor cursor, Cursor overridenCursorName) {
String webcursorName = null;
Cursor webcursor = null;
if (overridenCursorName == null) {
switch (cursor.getType()) {
case Cursor.DEFAULT_CURSOR:
webcursorName = CursorChangeEventMsg.DEFAULT_CURSOR;
break;
case Cursor.HAND_CURSOR:
webcursorName = CursorChangeEventMsg.HAND_CURSOR;
break;
case Cursor.CROSSHAIR_CURSOR:
webcursorName = CursorChangeEventMsg.CROSSHAIR_CURSOR;
break;
case Cursor.MOVE_CURSOR:
webcursorName = CursorChangeEventMsg.MOVE_CURSOR;
break;
case Cursor.TEXT_CURSOR:
webcursorName = CursorChangeEventMsg.TEXT_CURSOR;
break;
case Cursor.WAIT_CURSOR:
webcursorName = CursorChangeEventMsg.WAIT_CURSOR;
break;
case Cursor.E_RESIZE_CURSOR:
case Cursor.W_RESIZE_CURSOR:
webcursorName = CursorChangeEventMsg.EW_RESIZE_CURSOR;
break;
case Cursor.N_RESIZE_CURSOR:
case Cursor.S_RESIZE_CURSOR:
webcursorName = CursorChangeEventMsg.NS_RESIZE_CURSOR;
break;
case Cursor.NW_RESIZE_CURSOR:
case Cursor.SE_RESIZE_CURSOR:
webcursorName = CursorChangeEventMsg.BACKSLASH_RESIZE_CURSOR;
break;
case Cursor.NE_RESIZE_CURSOR:
case Cursor.SW_RESIZE_CURSOR:
webcursorName = CursorChangeEventMsg.SLASH_RESIZE_CURSOR;
break;
case Cursor.CUSTOM_CURSOR:
webcursorName = cursor.getName();
break;
default:
webcursorName = CursorChangeEventMsg.DEFAULT_CURSOR;
}
webcursor = cursor;
} else {
webcursor = overridenCursorName;
webcursorName = overridenCursorName.getName();
}
if (!Util.getWebToolkit().getWindowManager().getCurrentCursor().equals(webcursorName)) {
AppFrameMsgOut f = new AppFrameMsgOut();
CursorChangeEventMsg cursorChange = new CursorChangeEventMsg(webcursorName);
if (webcursor instanceof WebCursor) {
WebCursor c = (WebCursor) webcursor;
BufferedImage img = c.getImage();
cursorChange.setB64img(Services.getImageService().getPngImage(img));
cursorChange.setX(c.getHotSpot() != null ? c.getHotSpot().x : 0);
cursorChange.setY(c.getHotSpot() != null ? c.getHotSpot().y : 0);
File file = Util.convertAndSaveCursor(img, cursorChange.getX(), cursorChange.getY());
if (file != null) {
cursorChange.setCurFile(file.getAbsolutePath());
}
}
f.setCursorChange(cursorChange);
Util.getWebToolkit().getWindowManager().setCurrentCursor(webcursorName);
Logger.debug("WebPaintDispatcher:notifyCursorUpdate", f);
sendObject(f);
}
}
public void notifyCopyEvent(WebswingClipboardData data) {
AppFrameMsgOut f = new AppFrameMsgOut();
CopyEventMsg copyEvent;
copyEvent = new CopyEventMsg(data.getText(), data.getHtml(), data.getImg(), data.getFiles(), false);
f.setCopyEvent(copyEvent);
Logger.debug("WebPaintDispatcher:notifyCopyEvent", f);
sendObject(f);
}
public void notifyFileDialogActive(Window window) {
fileChooserDialog = Util.discoverFileChooser(window);
notifyFileDialogActive();
}
public void notifyFileDialogActive() {
if (!SwingUtilities.isEventDispatchThread()) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
notifyFileDialogActive();
}
});
} else {
if (fileChooserDialog != null) {
AppFrameMsgOut f = new AppFrameMsgOut();
FileDialogEventMsg fdEvent = new FileDialogEventMsg();
f.setFileDialogEvent(fdEvent);
FileDialogEventType fileChooserEventType = Util.getFileChooserEventType(fileChooserDialog);
if (fileChooserEventType == FileDialogEventType.AutoUpload && fileChooserDialog.getFileSelectionMode() == JFileChooser.DIRECTORIES_ONLY) {
//open dialog with auto upload enabled will automatically select the transfer folder
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
try {
fileChooserDialog.setSelectedFile(new File(fileChooserDialog.getCurrentDirectory().getCanonicalPath()));
fileChooserDialog.approveSelection();
} catch (IOException e) {
fileChooserDialog.cancelSelection();
}
}
});
return;
}
fdEvent.setEventType(fileChooserEventType);
if (FileDialogEventType.AutoUpload == fileChooserEventType || FileDialogEventType.AutoSave == fileChooserEventType) {
fdEvent.setAllowDelete(false);
fdEvent.setAllowDownload(false);
fdEvent.setAllowUpload(false);
if (FileDialogEventType.AutoUpload == fileChooserEventType) {
fileChooserDialog.setCurrentDirectory(Util.getTimestampedTransferFolder("autoupload"));
}
Window d = SwingUtilities.getWindowAncestor(fileChooserDialog);
d.setBounds(0, 0, 1, 1);
}
fdEvent.setSelection(Util.getFileChooserSelection(fileChooserDialog));
fdEvent.addFilter(fileChooserDialog.getChoosableFileFilters());
fdEvent.setMultiSelection(fileChooserDialog.isMultiSelectionEnabled());
Logger.info("WebPaintDispatcher:notifyFileTransferBarActive " + fileChooserEventType.name());
sendObject(f);
}
}
}
public void notifyFileDialogHidden() {
AppFrameMsgOut f = new AppFrameMsgOut();
FileDialogEventMsg fdEvent = new FileDialogEventMsg();
fdEvent.setEventType(FileDialogEventType.Close);
f.setFileDialogEvent(fdEvent);
Logger.info("WebPaintDispatcher:notifyFileTransferBarHidden " + FileDialogEventType.Close.name());
validateSelection(fileChooserDialog);
if (Boolean.getBoolean(Constants.SWING_START_SYS_PROP_ALLOW_AUTO_DOWNLOAD)) {
if (fileChooserDialog != null && fileChooserDialog.getDialogType() == JFileChooser.SAVE_DIALOG) {
try {
Field resultValueField = JFileChooser.class.getDeclaredField("returnValue");
resultValueField.setAccessible(true);
if (resultValueField.get(fileChooserDialog).equals(JFileChooser.APPROVE_OPTION)) {
File saveFile = fileChooserDialog.getSelectedFile();
if (saveFile != null) {
OpenFileResultMsgInternal msg = new OpenFileResultMsgInternal();
msg.setClientId(System.getProperty(Constants.SWING_START_SYS_PROP_CLIENT_ID));
msg.setFile(saveFile);
msg.setWaitForFile(true);
if (saveFile.exists()) {
msg.setOverwriteDetails(saveFile.length() + "|" + saveFile.lastModified());
}
sendObject(msg);
}
}
} catch (Exception e) {
Logger.warn("Save file dialog's file monitoring failed: " + e.getMessage());
}
}
}
fileChooserDialog = null;
sendObject(f);
}
private void validateSelection(JFileChooser fileChooserDialog) {
if (Boolean.getBoolean(Constants.SWING_START_SYS_PROP_ISOLATED_FS) && fileChooserDialog != null) {
try {
if (fileChooserDialog.getSelectedFile() != null) {
if (!IsolatedFsShellFolderManager.isSubfolderOfRoots(fileChooserDialog.getSelectedFile())) {
throw new IOException("Invalid selection " + fileChooserDialog.getSelectedFile());
}
}
if (fileChooserDialog.getSelectedFiles() != null && fileChooserDialog.getSelectedFiles().length > 0) {
for (File selection : fileChooserDialog.getSelectedFiles()) {
if (!IsolatedFsShellFolderManager.isSubfolderOfRoots(selection)) {
throw new IOException("Invalid selection " + selection);
}
}
}
} catch (IOException e) {
Logger.error("Selection is outside isolated path",e);
fileChooserDialog.cancelSelection();
}
}
}
public JFileChooser getFileChooserDialog() {
return fileChooserDialog;
}
public void notifyDownloadSelectedFile() {
if (fileChooserDialog != null && Boolean.getBoolean(Constants.SWING_START_SYS_PROP_ALLOW_DOWNLOAD)) {
File file = fileChooserDialog.getSelectedFile();
if (file != null && file.exists() && !file.isDirectory() && file.canRead()) {
OpenFileResultMsgInternal f = new OpenFileResultMsgInternal();
f.setClientId(System.getProperty(Constants.SWING_START_SYS_PROP_CLIENT_ID));
f.setFile(file);
Util.getWebToolkit().getPaintDispatcher().sendObject(f);
}
}
}
public void notifyDeleteSelectedFile() {
if (fileChooserDialog != null && Boolean.getBoolean(Constants.SWING_START_SYS_PROP_ALLOW_DELETE)) {
File[] selected = fileChooserDialog.getSelectedFiles();
if ((selected == null || selected.length == 0) && fileChooserDialog.getSelectedFile() != null) {
selected = new File[] { fileChooserDialog.getSelectedFile() };
}
for (File f : selected) {
if (f.exists() && f.canWrite()) {
f.delete();
}
}
fileChooserDialog.rescanCurrentDirectory();
}
}
public void notifyApplicationExiting() {
notifyApplicationExiting(Integer.getInteger(Constants.SWING_START_SYS_PROP_WAIT_FOR_EXIT, 30000));
}
public void notifyApplicationExiting(int waitBeforeKill) {
ExitMsgInternal f = new ExitMsgInternal();
f.setWaitForExit(waitBeforeKill);
sendObject(f);
Services.getConnectionService().disconnect();
contentSender.shutdownNow();
}
public void notifyUrlRedirect(String url) {
AppFrameMsgOut result = new AppFrameMsgOut();
result.setLinkAction(new LinkActionMsg(LinkActionMsg.LinkActionType.redirect, url));
Util.getWebToolkit().getPaintDispatcher().sendObject(result);
}
public void requestBrowserClipboard(PasteRequestContext ctx) {
AppFrameMsgOut result = new AppFrameMsgOut();
PasteRequestMsg paste = new PasteRequestMsg();
paste.setTitle(ctx.getTitle());
paste.setMessage(ctx.getMessage());
result.setPasteRequest(paste);
Util.getWebToolkit().getPaintDispatcher().sendObject(result);
this.clipboardDialog = new JDialog((Dialog) null, true);
clipboardDialog.setBounds(new Rectangle(0, 0, 1, 1));
clipboardDialog.setVisible(true);//this call is blocking until dialog is closed
}
public boolean closePasteRequestDialog() {
if (clipboardDialog != null) {
boolean result = clipboardDialog.isVisible();
clipboardDialog.setVisible(false);
clipboardDialog.dispose();
return result;
}
return false;
}
public void notifyFocusEvent(FocusEventMsg msg) {
focusEvent = msg;
}
}
