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org.webswing.dispatch.WebEventDispatcher Maven / Gradle / Ivy
package org.webswing.dispatch;
import java.applet.Applet;
import java.awt.AWTEvent;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.Frame;
import java.awt.IllegalComponentStateException;
import java.awt.Toolkit;
import java.awt.Window;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.WindowEvent;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JFileChooser;
import javax.swing.SwingUtilities;
import javax.swing.filechooser.FileFilter;
import org.webswing.Constants;
import org.webswing.audio.AudioClip;
import org.webswing.model.c2s.ActionEventMsgIn;
import org.webswing.model.c2s.AudioEventMsgIn;
import org.webswing.model.c2s.ConnectionHandshakeMsgIn;
import org.webswing.model.c2s.CopyEventMsgIn;
import org.webswing.model.c2s.FilesSelectedEventMsgIn;
import org.webswing.model.c2s.KeyboardEventMsgIn;
import org.webswing.model.c2s.MouseEventMsgIn;
import org.webswing.model.c2s.MouseEventMsgIn.MouseEventType;
import org.webswing.model.c2s.PasteEventMsgIn;
import org.webswing.model.c2s.SimpleEventMsgIn;
import org.webswing.model.c2s.UploadEventMsgIn;
import org.webswing.model.c2s.WindowEventMsgIn;
import org.webswing.model.c2s.WindowFocusMsgIn;
import org.webswing.model.jslink.JSObjectMsg;
import org.webswing.model.s2c.FileDialogEventMsg.FileDialogEventType;
import org.webswing.toolkit.FocusEventCause;
import org.webswing.toolkit.WebClipboard;
import org.webswing.toolkit.WebClipboardTransferable;
import org.webswing.toolkit.WebWindowPeer;
import org.webswing.toolkit.api.component.HtmlPanel;
import org.webswing.toolkit.api.lifecycle.ShutdownReason;
import org.webswing.toolkit.extra.WindowManager;
import org.webswing.toolkit.jslink.WebJSObject;
import org.webswing.toolkit.util.Logger;
import org.webswing.toolkit.util.Services;
import org.webswing.toolkit.util.Util;
import netscape.javascript.JSObject;
public class WebEventDispatcher extends AbstractEventDispatcher {
protected void dispatchMessage(SimpleEventMsgIn message) {
Logger.debug("WebEventDispatcher.dispatchMessage", message);
switch (message.getType()) {
case killSwing:
Logger.info("Received kill signal from Admin console. Application shutting down.");
Services.getConnectionService().scheduleShutdown(ShutdownReason.Admin);
break;
case deleteFile:
Util.getWebToolkit().getPaintDispatcher().notifyDeleteSelectedFile();
break;
case downloadFile:
Util.getWebToolkit().getPaintDispatcher().notifyDownloadSelectedFile();
break;
case cancelFileSelection:
JFileChooser dialog = Util.getWebToolkit().getPaintDispatcher().getFileChooserDialog();
if (dialog != null) {
dialog.cancelSelection();
}
break;
case paintAck:
Util.getWebToolkit().getPaintDispatcher().clientReadyToReceive();
break;
case repaint:
Util.getWebToolkit().getPaintDispatcher().notifyWindowRepaintAll();
break;
case unload:
boolean instantExit = Integer.parseInt(System.getProperty(Constants.SWING_SESSION_TIMEOUT_SEC, "300")) == 0;
if (instantExit) {
Logger.warn("Exiting Application. Client has disconnected from web session. (swingSessionTimeout setting is 0 or less)");
Services.getConnectionService().scheduleShutdown(ShutdownReason.Inactivity);
}
break;
case hb:
break;
case requestComponentTree:
if (Util.isTestMode()) {
Util.getWebToolkit().getPaintDispatcher().notifyComponentTreeRequested();
}
break;
case requestWindowSwitchList:
Util.getWebToolkit().getPaintDispatcher().notifyWindowSwitchList();
break;
}
}
protected void dispatchKeyboardEvent(KeyboardEventMsgIn event) {
Window w = Util.getWebToolkit().getWindowManager().getActiveWindow();
if (w != null) {
long when = System.currentTimeMillis();
int modifiers = Util.getKeyModifiersAWTFlag(event);
int type = Util.getKeyType(event.getType());
char character = Util.getKeyCharacter(event);
Component src = w.getFocusOwner() == null ? w : w.getFocusOwner();
if (event.getKeycode() == 13) {// enter keycode
event.setKeycode(10);
event.setCharacter(10);
character = 10;
} else if (CONVERTED_KEY_CODES.containsKey(event.getKeycode()) && type != KeyEvent.KEY_TYPED) {
int converted = CONVERTED_KEY_CODES.get(event.getKeycode());
event.setKeycode(converted);
character = (char) converted;
} else if (NON_STANDARD_KEY_CODES.contains(event.getKeycode())) {
event.setKeycode(0);
}
if (event.getType() == KeyboardEventMsgIn.KeyEventType.keydown) {
getReleaseCharMap().put(event.getKeycode(), event.getCharacter());
}
if (event.getType() == KeyboardEventMsgIn.KeyEventType.keyup) {
Integer c = getReleaseCharMap().get(event.getKeycode());
character = (char) (c == null ? event.getCharacter() : c);
}
if (type == KeyEvent.KEY_TYPED) {
AWTEvent e = new KeyEvent(src, KeyEvent.KEY_TYPED, when, modifiers, 0, (char) event.getCharacter());
dispatchKeyEventInSwing(w, e);
} else {
AWTEvent e = Util.createKeyEvent(src, type, when, modifiers, event.getKeycode(), character, KeyEvent.KEY_LOCATION_STANDARD);
dispatchKeyEventInSwing(w, e);
if ((event.getKeycode() == 32 || event.getKeycode() == 9 || event.getKeycode() == 8) && event.getType() == KeyboardEventMsgIn.KeyEventType.keydown && !event.isCtrl()) {// space keycode handle press
event.setType(KeyboardEventMsgIn.KeyEventType.keypress);
dispatchKeyboardEvent(event);
}
}
}
}
@Override
protected void windowFocusEvent(WindowFocusMsgIn event) {
if (event.getHtmlPanelId() != null) {
HtmlPanel panel = Util.getWebToolkit().getPaintDispatcher().findHtmlPanelById(event.getHtmlPanelId());
if (panel != null) {
panel.requestFocusInWindow();
}
} else if (event.getWindowId() != null) {
WindowManager.getInstance().activateWindow(Util.findWindowById(event.getWindowId()));
}
}
protected void dispatchMouseEvent(MouseEventMsgIn event) {
Component c = null;
boolean relatedToLastEvent = false;
if (Util.getWebToolkit().getWindowManager().isLockedToWindowDecorationHandler()) {
c = Util.getWebToolkit().getWindowManager().getLockedToWindow();
} else {
c = Util.getWebToolkit().getWindowManager().getVisibleComponentOnPosition(event.getX(), event.getY(), event.getWinId());
if (relatedToLastEvent(event) && !isJavaFXdragStarted() && !isDndInProgress()) {
c = (Component) getLastMouseEvent().getSource();
relatedToLastEvent = true;
}
}
if (c == null) {
if (Util.getWebToolkit().getPaintDispatcher() != null) {
Util.getWebToolkit().getPaintDispatcher().notifyCursorUpdate(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR),null, null);
}
dispatchExitEvent(System.currentTimeMillis(), 0, -1, -1, event.getX(), event.getY());
return;
}
if (c.isShowing()) {
MouseEvent e = null;
int x = 0;
int y = 0;
try {
x = (int) (event.getX() - c.getLocationOnScreen().getX());
y = (int) (event.getY() - c.getLocationOnScreen().getY());
} catch (IllegalComponentStateException e1) {
//in case the window closed in meantime, just ignore this event
return;
}
setLastMousePosition(event.getX(), event.getY());
long when = System.currentTimeMillis();
int modifiers = Util.getMouseModifiersAWTFlag(event);
int id = 0;
int clickcount = 0;
int buttons = Util.getMouseButtonsAWTFlag(event.getButton());
if (buttons != 0 && event.getType() == MouseEventType.mousedown) {
Window w = (Window) (c instanceof Window ? c : SwingUtilities.windowForComponent(c));
Util.getWebToolkit().getWindowManager().activateWindow(w, null, x, y, false, true, FocusEventCause.MOUSE_EVENT);
}
switch (event.getType()) {
case mousemove:
id = event.getButtons() != 0 ? MouseEvent.MOUSE_DRAGGED : MouseEvent.MOUSE_MOVED;
buttons = 0; //in swing mouse move/drag has always MouseEvent.button==0
e = new MouseEvent(c, id, when, modifiers, x, y, event.getX(), event.getY(), clickcount, false, buttons);
setLastMouseEvent(e);
dispatchMouseEventInSwing(c, e, relatedToLastEvent);
break;
case mouseup:
if (buttons == 0) {
// a button must be specified for this event
break;
}
id = MouseEvent.MOUSE_RELEASED;
boolean popupTrigger = buttons == 3;
clickcount = computeClickCount(x, y, buttons, false, event.getTimeMilis());
modifiers = modifiers & (((1 << 6) - 1) | (-(1 << 14)) | MouseEvent.CTRL_DOWN_MASK | MouseEvent.ALT_DOWN_MASK | MouseEvent.SHIFT_DOWN_MASK | MouseEvent.META_DOWN_MASK);
e = new MouseEvent(c, id, when, modifiers, x, y, event.getX(), event.getY(), clickcount, popupTrigger, buttons);
dispatchMouseEventInSwing(c, e, relatedToLastEvent);
if (isNearLastMousePressEvent(x, y)) {
e = new MouseEvent(c, MouseEvent.MOUSE_CLICKED, when, modifiers, x, y, event.getX(), event.getY(), clickcount, popupTrigger, buttons);
dispatchMouseEventInSwing(c, e, relatedToLastEvent);
setLastMouseEvent(e);
setLastMousePressEvent(e, event.getTimeMilis());
} else {
setLastMouseEvent(e);
setLastMousePressEvent(e, event.getTimeMilis());
}
break;
case mousedown:
if (buttons == 0) {
// a button must be specified for this event
break;
}
id = MouseEvent.MOUSE_PRESSED;
clickcount = computeClickCount(x, y, buttons, true, event.getTimeMilis());
e = new MouseEvent(c, id, when, modifiers, x, y, event.getX(), event.getY(), clickcount, false, buttons);
dispatchMouseEventInSwing(c, e, relatedToLastEvent);
setLastMousePressEvent(e, event.getTimeMilis());
setLastMouseEvent(e);
break;
case mousewheel:
id = MouseEvent.MOUSE_WHEEL;
buttons = 0;
modifiers = 0;
e = new MouseWheelEvent(c, id, when, modifiers, x, y, clickcount, false, MouseWheelEvent.WHEEL_UNIT_SCROLL, 3, event.getWheelDelta());
dispatchMouseEventInSwing(c, e, relatedToLastEvent);
break;
case dblclick:
// e = new MouseEvent(w, MouseEvent.MOUSE_CLICKED, when,
// modifiers, x, y, event.x, event.y, 2, false, buttons);
// dispatchEventInSwing(w, e);
// break;
default:
break;
}
}
}
protected void handleActionEvent(ActionEventMsgIn event) {
Util.getWebToolkit().processApiEvent(event);
}
protected void dispatchHandshakeEvent(ConnectionHandshakeMsgIn event) {
PaintDispatcher paintDispatcher = Util.getWebToolkit().getPaintDispatcher();
Util.getWebToolkit().initSize(event.getDesktopWidth(), event.getDesktopHeight());
paintDispatcher.notifyFileDialogActive();
paintDispatcher.closePasteRequestDialog();
Util.getWebToolkit().processApiEvent(event);
if (System.getProperty(Constants.SWING_START_SYS_PROP_APPLET_CLASS) != null) {
// resize and refresh the applet object exposed in javascript in case of page reload/session continue
Applet a = (Applet) WebJSObject.getJavaReference(System.getProperty(Constants.SWING_START_SYS_PROP_APPLET_CLASS));
a.resize(event.getDesktopWidth(), event.getDesktopHeight());
JSObject root = new WebJSObject(new JSObjectMsg("instanceObject"));
root.setMember("applet", a);
}
System.setProperty(Constants.SWING_START_SYS_PROP_TOUCH_MODE, event.isTouchMode() + "");
boolean oldAccessibility = Boolean.valueOf(System.getProperty(Constants.SWING_START_SYS_PROP_ACCESSIBILITY_ENABLED, "false"));
System.setProperty(Constants.SWING_START_SYS_PROP_ACCESSIBILITY_ENABLED, event.isAccessiblityEnabled() + "");
if (event.isAccessiblityEnabled() && !oldAccessibility) {
paintDispatcher.notifyAccessibilityInfoUpdate();
paintDispatcher.clearAccessibilityInfoState();
}
}
protected void handleCopyEvent(final CopyEventMsgIn copy) {
SwingUtilities.invokeLater(() -> {
if (copy.getType() != null) {
switch (copy.getType()) {
case copy:
dispatchCopyEvent();
break;
case cut:
dispatchCutEvent();
break;
case getFileFromClipboard:
handleClipboardFileDownload(copy);
}
}
});
}
protected void handleClipboardFileDownload(CopyEventMsgIn copy) {
if (Boolean.getBoolean(Constants.SWING_START_SYS_PROP_ALLOW_DOWNLOAD)) {
Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
if (clipboard.isDataFlavorAvailable(DataFlavor.javaFileListFlavor)) {
try {
List files = (List) clipboard.getData(DataFlavor.javaFileListFlavor);
for (Object o : files) {
File file = (File) o;
if (file.getAbsolutePath().equals(copy.getFile())) {
if (file.exists() && !file.isDirectory() && file.canRead()) {
Util.getWebToolkit().getPaintDispatcher().notifyFileRequested(file,false);
} else {
Logger.error("Failed to download file " + copy.getFile() + " from clipboard. File is not accessible or is a directory");
}
}
}
} catch (Exception e) {
Logger.error("Failed to download file " + copy.getFile() + " from clipboard.", e);
}
}
}
}
protected void handlePasteEvent(final PasteEventMsgIn paste) {
Logger.debug("WebEventDispatcher.handlePasteEvent", paste);
SwingUtilities.invokeLater(() -> {
boolean clipboardRequested = Util.getWebToolkit().getPaintDispatcher().closePasteRequestDialog();
WebClipboardTransferable transferable = new WebClipboardTransferable(paste);
WebClipboard wc = (WebClipboard) Util.getWebToolkit().getSystemClipboard();
wc.setBrowserClipboard(transferable);
if (!transferable.isEmpty() && Boolean.getBoolean(Constants.SWING_START_SYS_PROP_ALLOW_LOCAL_CLIPBOARD)) {
wc.setContents(transferable);
}
if (!clipboardRequested) {
WebEventDispatcher.this.dispatchPasteEvent(paste.isSpecial());
}
});
}
protected void handleFileSelectionEvent(final FilesSelectedEventMsgIn e) {
SwingUtilities.invokeLater(() -> {
JFileChooser fc = Util.getWebToolkit().getPaintDispatcher().getFileChooserDialog();
if (fc != null) {
FileDialogEventType fileChooserEventType = Util.getFileChooserEventType(fc);
boolean saveMode = FileDialogEventType.AutoSave == fileChooserEventType;
fc.rescanCurrentDirectory();
if (e.getFiles() != null && e.getFiles().size() > 0) {
if (fc.isMultiSelectionEnabled()) {
List arr = new ArrayList();
for (int i = 0; i < e.getFiles().size(); i++) {
if (getFileUploadMap().get(e.getFiles().get(i)) != null) {
arr.add(new File(fc.getCurrentDirectory(), getFileUploadMap().get(e.getFiles().get(i))));
} else if (saveMode) {
arr.add(new File(Util.getTimestampedTransferFolder("autosavemulti"), e.getFiles().get(i)));
}
}
fc.setSelectedFiles(arr.toArray(new File[0]));
Logger.info("Files selected :" + arr);
} else {
if (getFileUploadMap().get(e.getFiles().get(0)) != null) {
File f = new File(fc.getCurrentDirectory(), getFileUploadMap().get(e.getFiles().get(0)));
fc.setSelectedFile(f);
} else if (saveMode) {
fc.setSelectedFile(new File(Util.getTimestampedTransferFolder("autosave"), e.getFiles().get(0)));
}
if (fc.getFileFilter() != null && fc.getSelectedFile() != null && !fc.getFileFilter().accept(fc.getSelectedFile())) {
for (FileFilter ff : fc.getChoosableFileFilters()) {
if (ff.accept(fc.getSelectedFile())) {
fc.setFileFilter(ff);
break;
}
}
}
Logger.info("File selected :" + (fc.getSelectedFile() != null ? fc.getSelectedFile().getAbsoluteFile() : null));
}
if (FileDialogEventType.AutoUpload == fileChooserEventType || FileDialogEventType.AutoSave == fileChooserEventType) {
fc.approveSelection();
}
} else {
if (FileDialogEventType.AutoUpload == fileChooserEventType || FileDialogEventType.AutoSave == fileChooserEventType) {
fc.cancelSelection();
}
}
}
getFileUploadMap().clear();
});
}
protected void handleUploadEvent(final UploadEventMsgIn upload) {
SwingUtilities.invokeLater(() -> {
JFileChooser dialog = Util.getWebToolkit().getPaintDispatcher().getFileChooserDialog();
if (dialog != null) {
File currentDir = dialog.getCurrentDirectory();
File tempFile = new File(upload.getTempFileLocation());
String validfilename = Util.resolveUploadFilename(currentDir, upload.getFileName());
if (currentDir.canWrite() && tempFile.exists()) {
try {
Services.getImageService().moveFile(tempFile, new File(currentDir, validfilename));
getFileUploadMap().put(upload.getFileName(), validfilename);
Logger.info("File upload notification received: " + validfilename);
} catch (IOException e) {
Logger.error("Error while moving uploaded file '" + validfilename + "' to target folder: ", e);
}
} else {
Logger.error("Error while uploading file '" + validfilename + "'. " + (currentDir.canWrite() ? " Temp upload file " + tempFile.getAbsoluteFile() + " not found" : "Can not write to target folder " + currentDir.getAbsoluteFile()));
}
} else {
Logger.error("Error while uploading file. FileChooser dialog instance not found");
}
});
}
protected void handleWindowEvent(WindowEventMsgIn windowUpdate) {
WebWindowPeer winPeer = Util.findWindowPeerById(windowUpdate.getId());
if (winPeer == null) {
return;
}
synchronized (Util.getWebToolkit().getTreeLock()) {
synchronized (WebPaintDispatcher.webPaintLock) {
final Window win = ((Window) winPeer.getTarget());
if (windowUpdate.getEventType() != null) {
switch (windowUpdate.getEventType()) {
case close:
Toolkit.getDefaultToolkit().getSystemEventQueue().postEvent(new WindowEvent(win, WindowEvent.WINDOW_CLOSING));
break;
case decorate:
winPeer.setUndecoratedOverride(false);
break;
case undecorate:
winPeer.setUndecoratedOverride(true);
break;
case dock:
winPeer.setUndocked(false);
break;
case undock:
winPeer.setUndocked(true);
break;
case focus:
if (!Util.isFXWindow(win)) {
win.requestFocus();
}
break;
case maximize:
if (win instanceof Frame) {
Frame frame = (Frame) win;
frame.setExtendedState(Frame.MAXIMIZED_BOTH);
}
break;
default:
break;
}
} else {
SwingUtilities.invokeLater(() -> {
win.setBounds(windowUpdate.getX(), windowUpdate.getY(), windowUpdate.getWidth(), windowUpdate.getHeight());
});
}
}
}
}
@Override
protected void handleAudioEvent(AudioEventMsgIn event) {
AudioClip clip = Util.getWebToolkit().getPaintDispatcher().findAudioClip(event.getId());
if (clip == null) {
Logger.warn("Audio clip [" + event.getId() + "] not found. Cannot notify on playback end.");
return;
}
clip.notifyPlaybackStopped();
}
}
