Java example source code file (LWWindowPeer.java)
The LWWindowPeer.java Java example source code/*
* Copyright (c) 2011, 2013, 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 sun.lwawt;
import java.awt.*;
import java.awt.event.*;
import java.awt.peer.*;
import java.util.List;
import javax.swing.*;
import sun.awt.*;
import sun.java2d.*;
import sun.java2d.loops.Blit;
import sun.java2d.loops.CompositeType;
import sun.java2d.pipe.Region;
import sun.util.logging.PlatformLogger;
public class LWWindowPeer
extends LWContainerPeer<Window, JComponent>
implements FramePeer, DialogPeer, FullScreenCapable, DisplayChangedListener, PlatformEventNotifier
{
public enum PeerType {
SIMPLEWINDOW,
FRAME,
DIALOG,
EMBEDDED_FRAME,
VIEW_EMBEDDED_FRAME,
LW_FRAME
}
private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.lwawt.focus.LWWindowPeer");
private final PlatformWindow platformWindow;
private static final int MINIMUM_WIDTH = 1;
private static final int MINIMUM_HEIGHT = 1;
private Insets insets = new Insets(0, 0, 0, 0);
private GraphicsDevice graphicsDevice;
private GraphicsConfiguration graphicsConfig;
private SurfaceData surfaceData;
private final Object surfaceDataLock = new Object();
private volatile int windowState = Frame.NORMAL;
// check that the mouse is over the window
private volatile boolean isMouseOver = false;
// A peer where the last mouse event came to. Used by cursor manager to
// find the component under cursor
private static volatile LWComponentPeer<?, ?> lastCommonMouseEventPeer;
// A peer where the last mouse event came to. Used to generate
// MOUSE_ENTERED/EXITED notifications
private volatile LWComponentPeer<?, ?> lastMouseEventPeer;
// Peers where all dragged/released events should come to,
// depending on what mouse button is being dragged according to Cocoa
private static final LWComponentPeer<?, ?>[] mouseDownTarget = new LWComponentPeer[3];
// A bitmask that indicates what mouse buttons produce MOUSE_CLICKED events
// on MOUSE_RELEASE. Click events are only generated if there were no drag
// events between MOUSE_PRESSED and MOUSE_RELEASED for particular button
private static int mouseClickButtons = 0;
private volatile boolean isOpaque = true;
private static final Font DEFAULT_FONT = new Font("Lucida Grande", Font.PLAIN, 13);
private static LWWindowPeer grabbingWindow;
private volatile boolean skipNextFocusChange;
private static final Color nonOpaqueBackground = new Color(0, 0, 0, 0);
private volatile boolean textured;
private final PeerType peerType;
private final SecurityWarningWindow warningWindow;
/**
* Current modal blocker or null.
*
* Synchronization: peerTreeLock.
*/
private LWWindowPeer blocker;
public LWWindowPeer(Window target, PlatformComponent platformComponent,
PlatformWindow platformWindow, PeerType peerType)
{
super(target, platformComponent);
this.platformWindow = platformWindow;
this.peerType = peerType;
Window owner = target.getOwner();
LWWindowPeer ownerPeer = owner == null ? null :
(LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(owner);
PlatformWindow ownerDelegate = (ownerPeer != null) ? ownerPeer.getPlatformWindow() : null;
// The delegate.initialize() needs a non-null GC on X11.
GraphicsConfiguration gc = getTarget().getGraphicsConfiguration();
synchronized (getStateLock()) {
// graphicsConfig should be updated according to the real window
// bounds when the window is shown, see 4868278
this.graphicsConfig = gc;
}
if (!target.isFontSet()) {
target.setFont(DEFAULT_FONT);
}
if (!target.isBackgroundSet()) {
target.setBackground(SystemColor.window);
} else {
// first we check if user provided alpha for background. This is
// similar to what Apple's Java do.
// Since JDK7 we should rely on setOpacity() only.
// this.opacity = c.getAlpha();
}
if (!target.isForegroundSet()) {
target.setForeground(SystemColor.windowText);
// we should not call setForeground because it will call a repaint
// which the peer may not be ready to do yet.
}
platformWindow.initialize(target, this, ownerDelegate);
// Init warning window(for applets)
SecurityWarningWindow warn = null;
if (target.getWarningString() != null) {
// accessSystemTray permission allows to display TrayIcon, TrayIcon tooltip
// and TrayIcon balloon windows without a warning window.
if (!AWTAccessor.getWindowAccessor().isTrayIconWindow(target)) {
LWToolkit toolkit = (LWToolkit)Toolkit.getDefaultToolkit();
warn = toolkit.createSecurityWarning(target, this);
}
}
warningWindow = warn;
}
@Override
void initializeImpl() {
super.initializeImpl();
if (getTarget() instanceof Frame) {
setTitle(((Frame) getTarget()).getTitle());
setState(((Frame) getTarget()).getExtendedState());
} else if (getTarget() instanceof Dialog) {
setTitle(((Dialog) getTarget()).getTitle());
}
updateAlwaysOnTopState();
updateMinimumSize();
final Shape shape = getTarget().getShape();
if (shape != null) {
applyShape(Region.getInstance(shape, null));
}
final float opacity = getTarget().getOpacity();
if (opacity < 1.0f) {
setOpacity(opacity);
}
setOpaque(getTarget().isOpaque());
updateInsets(platformWindow.getInsets());
if (getSurfaceData() == null) {
replaceSurfaceData(false);
}
activateDisplayListener();
}
// Just a helper method
@Override
public PlatformWindow getPlatformWindow() {
return platformWindow;
}
@Override
protected LWWindowPeer getWindowPeerOrSelf() {
return this;
}
// ---- PEER METHODS ---- //
@Override
protected void disposeImpl() {
deactivateDisplayListener();
SurfaceData oldData = getSurfaceData();
synchronized (surfaceDataLock){
surfaceData = null;
}
if (oldData != null) {
oldData.invalidate();
}
if (isGrabbing()) {
ungrab();
}
if (warningWindow != null) {
warningWindow.dispose();
}
platformWindow.dispose();
super.disposeImpl();
}
@Override
protected void setVisibleImpl(final boolean visible) {
if (!visible && warningWindow != null) {
warningWindow.setVisible(false, false);
}
super.setVisibleImpl(visible);
// TODO: update graphicsConfig, see 4868278
platformWindow.setVisible(visible);
if (isSimpleWindow()) {
KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
if (visible) {
if (!getTarget().isAutoRequestFocus()) {
return;
} else {
requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
}
// Focus the owner in case this window is focused.
} else if (kfmPeer.getCurrentFocusedWindow() == getTarget()) {
// Transfer focus to the owner.
LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this);
if (owner != null) {
owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
}
}
}
}
@Override
public final GraphicsConfiguration getGraphicsConfiguration() {
synchronized (getStateLock()) {
return graphicsConfig;
}
}
@Override
public boolean updateGraphicsData(GraphicsConfiguration gc) {
setGraphicsConfig(gc);
return false;
}
protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
if (getSurfaceData() == null) {
return null;
}
if (fg == null) {
fg = SystemColor.windowText;
}
if (bg == null) {
bg = SystemColor.window;
}
if (f == null) {
f = DEFAULT_FONT;
}
return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f));
}
@Override
public void setBounds(int x, int y, int w, int h, int op) {
if((op & NO_EMBEDDED_CHECK) == 0 && getPeerType() == PeerType.VIEW_EMBEDDED_FRAME) {
return;
}
if ((op & SET_CLIENT_SIZE) != 0) {
// SET_CLIENT_SIZE is only applicable to window peers, so handle it here
// instead of pulling 'insets' field up to LWComponentPeer
// no need to add insets since Window's notion of width and height includes insets.
op &= ~SET_CLIENT_SIZE;
op |= SET_SIZE;
}
// Don't post ComponentMoved/Resized and Paint events
// until we've got a notification from the delegate
Rectangle cb = constrainBounds(x, y, w, h);
Rectangle newBounds = new Rectangle(getBounds());
if ((op & (SET_LOCATION | SET_BOUNDS)) != 0) {
newBounds.x = cb.x;
newBounds.y = cb.y;
}
if ((op & (SET_SIZE | SET_BOUNDS)) != 0) {
newBounds.width = cb.width;
newBounds.height = cb.height;
}
// Native system could constraint bounds, so the peer wold be updated in the callback
platformWindow.setBounds(newBounds.x, newBounds.y, newBounds.width, newBounds.height);
}
public Rectangle constrainBounds(Rectangle bounds) {
return constrainBounds(bounds.x, bounds.y, bounds.width, bounds.height);
}
public Rectangle constrainBounds(int x, int y, int w, int h) {
if (w < MINIMUM_WIDTH) {
w = MINIMUM_WIDTH;
}
if (h < MINIMUM_HEIGHT) {
h = MINIMUM_HEIGHT;
}
final int maxW = getLWGC().getMaxTextureWidth();
final int maxH = getLWGC().getMaxTextureHeight();
if (w > maxW) {
w = maxW;
}
if (h > maxH) {
h = maxH;
}
return new Rectangle(x, y, w, h);
}
@Override
public Point getLocationOnScreen() {
return platformWindow.getLocationOnScreen();
}
/**
* Overridden from LWContainerPeer to return the correct insets.
* Insets are queried from the delegate and are kept up to date by
* requiering when needed (i.e. when the window geometry is changed).
*/
@Override
public Insets getInsets() {
synchronized (getStateLock()) {
return insets;
}
}
@Override
public FontMetrics getFontMetrics(Font f) {
// TODO: check for "use platform metrics" settings
return platformWindow.getFontMetrics(f);
}
@Override
public void toFront() {
platformWindow.toFront();
}
@Override
public void toBack() {
platformWindow.toBack();
}
@Override
public void setZOrder(ComponentPeer above) {
throw new RuntimeException("not implemented");
}
@Override
public void updateAlwaysOnTopState() {
platformWindow.setAlwaysOnTop(getTarget().isAlwaysOnTop());
}
@Override
public void updateFocusableWindowState() {
platformWindow.updateFocusableWindowState();
}
@Override
public void setModalBlocked(Dialog blocker, boolean blocked) {
synchronized (getPeerTreeLock()) {
ComponentPeer peer = AWTAccessor.getComponentAccessor().getPeer(blocker);
if (blocked && (peer instanceof LWWindowPeer)) {
this.blocker = (LWWindowPeer) peer;
} else {
this.blocker = null;
}
}
platformWindow.setModalBlocked(blocked);
}
@Override
public void updateMinimumSize() {
final Dimension min;
if (getTarget().isMinimumSizeSet()) {
min = getTarget().getMinimumSize();
min.width = Math.max(min.width, MINIMUM_WIDTH);
min.height = Math.max(min.height, MINIMUM_HEIGHT);
} else {
min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
}
final Dimension max;
if (getTarget().isMaximumSizeSet()) {
max = getTarget().getMaximumSize();
max.width = Math.min(max.width, getLWGC().getMaxTextureWidth());
max.height = Math.min(max.height, getLWGC().getMaxTextureHeight());
} else {
max = new Dimension(getLWGC().getMaxTextureWidth(),
getLWGC().getMaxTextureHeight());
}
platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
}
@Override
public void updateIconImages() {
getPlatformWindow().updateIconImages();
}
@Override
public void setOpacity(float opacity) {
getPlatformWindow().setOpacity(opacity);
repaintPeer();
}
@Override
public final void setOpaque(final boolean isOpaque) {
if (this.isOpaque != isOpaque) {
this.isOpaque = isOpaque;
updateOpaque();
}
}
private void updateOpaque() {
getPlatformWindow().setOpaque(!isTranslucent());
replaceSurfaceData(false);
repaintPeer();
}
@Override
public void updateWindow() {
}
public final boolean isTextured() {
return textured;
}
public final void setTextured(final boolean isTextured) {
textured = isTextured;
}
@Override
public final boolean isTranslucent() {
synchronized (getStateLock()) {
/*
* Textured window is a special case of translucent window.
* The difference is only in nswindow background. So when we set
* texture property our peer became fully translucent. It doesn't
* fill background, create non opaque backbuffers and layer etc.
*/
return !isOpaque || isShaped() || isTextured();
}
}
@Override
final void applyShapeImpl(final Region shape) {
super.applyShapeImpl(shape);
updateOpaque();
}
@Override
public void repositionSecurityWarning() {
if (warningWindow != null) {
AWTAccessor.ComponentAccessor compAccessor = AWTAccessor.getComponentAccessor();
Window target = getTarget();
int x = compAccessor.getX(target);
int y = compAccessor.getY(target);
int width = compAccessor.getWidth(target);
int height = compAccessor.getHeight(target);
warningWindow.reposition(x, y, width, height);
}
}
// ---- FRAME PEER METHODS ---- //
@Override // FramePeer and DialogPeer
public void setTitle(String title) {
platformWindow.setTitle(title == null ? "" : title);
}
@Override
public void setMenuBar(MenuBar mb) {
platformWindow.setMenuBar(mb);
}
@Override // FramePeer and DialogPeer
public void setResizable(boolean resizable) {
platformWindow.setResizable(resizable);
}
@Override
public void setState(int state) {
platformWindow.setWindowState(state);
}
@Override
public int getState() {
return windowState;
}
@Override
public void setMaximizedBounds(Rectangle bounds) {
// TODO: not implemented
}
@Override
public void setBoundsPrivate(int x, int y, int width, int height) {
setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK);
}
@Override
public Rectangle getBoundsPrivate() {
throw new RuntimeException("not implemented");
}
// ---- DIALOG PEER METHODS ---- //
@Override
public void blockWindows(List<Window> windows) {
//TODO: LWX will probably need some collectJavaToplevels to speed this up
for (Window w : windows) {
WindowPeer wp =
(WindowPeer) AWTAccessor.getComponentAccessor().getPeer(w);
if (wp != null) {
wp.setModalBlocked((Dialog)getTarget(), true);
}
}
}
// ---- PEER NOTIFICATIONS ---- //
@Override
public void notifyIconify(boolean iconify) {
//The toplevel target is Frame and states are applicable to it.
//Otherwise, the target is Window and it don't have state property.
//Hopefully, no such events are posted in the queue so consider the
//target as Frame in all cases.
// REMIND: should we send it anyway if the state not changed since last
// time?
WindowEvent iconifyEvent = new WindowEvent(getTarget(),
iconify ? WindowEvent.WINDOW_ICONIFIED
: WindowEvent.WINDOW_DEICONIFIED);
postEvent(iconifyEvent);
int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL;
postWindowStateChangedEvent(newWindowState);
// REMIND: RepaintManager doesn't repaint iconified windows and
// hence ignores any repaint request during deiconification.
// So, we need to repaint window explicitly when it becomes normal.
if (!iconify) {
repaintPeer();
}
}
@Override
public void notifyZoom(boolean isZoomed) {
int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL;
postWindowStateChangedEvent(newWindowState);
}
/**
* Called by the {@code PlatformWindow} when any part of the window should
* be repainted.
*/
@Override
public void notifyExpose(final Rectangle r) {
repaintPeer(r);
}
/**
* Called by the {@code PlatformWindow} when this window is moved/resized by
* user or window insets are changed. There's no notifyReshape() in
* LWComponentPeer as the only components which could be resized by user are
* top-level windows.
*/
@Override
public void notifyReshape(int x, int y, int w, int h) {
Rectangle oldBounds = getBounds();
final boolean invalid = updateInsets(platformWindow.getInsets());
final boolean moved = (x != oldBounds.x) || (y != oldBounds.y);
final boolean resized = (w != oldBounds.width) || (h != oldBounds.height);
// Check if anything changed
if (!moved && !resized && !invalid) {
return;
}
// First, update peer's bounds
setBounds(x, y, w, h, SET_BOUNDS, false, false);
// Second, update the graphics config and surface data
final boolean isNewDevice = updateGraphicsDevice();
if (resized || isNewDevice) {
replaceSurfaceData();
}
// Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
if (moved || invalid) {
handleMove(x, y, true);
}
if (resized || invalid || isNewDevice) {
handleResize(w, h, true);
repaintPeer();
}
repositionSecurityWarning();
}
private void clearBackground(final int w, final int h) {
final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
getFont());
if (g != null) {
try {
if (g instanceof Graphics2D) {
((Graphics2D) g).setComposite(AlphaComposite.Src);
}
if (isTranslucent()) {
g.setColor(nonOpaqueBackground);
g.fillRect(0, 0, w, h);
}
if (!isTextured()) {
if (g instanceof SunGraphics2D) {
((SunGraphics2D) g).constrain(0, 0, w, h, getRegion());
}
g.setColor(getBackground());
g.fillRect(0, 0, w, h);
}
} finally {
g.dispose();
}
}
}
@Override
public void notifyUpdateCursor() {
getLWToolkit().getCursorManager().updateCursorLater(this);
}
@Override
public void notifyActivation(boolean activation, LWWindowPeer opposite) {
Window oppositeWindow = (opposite == null)? null : opposite.getTarget();
changeFocusedWindow(activation, oppositeWindow);
}
// MouseDown in non-client area
@Override
public void notifyNCMouseDown() {
// Ungrab except for a click on a Dialog with the grabbing owner
if (grabbingWindow != null &&
grabbingWindow != getOwnerFrameDialog(this))
{
grabbingWindow.ungrab();
}
}
// ---- EVENTS ---- //
/*
* Called by the delegate to dispatch the event to Java. Event
* coordinates are relative to non-client window are, i.e. the top-left
* point of the client area is (insets.top, insets.left).
*/
@Override
public void notifyMouseEvent(int id, long when, int button,
int x, int y, int screenX, int screenY,
int modifiers, int clickCount, boolean popupTrigger,
byte[] bdata)
{
// TODO: fill "bdata" member of AWTEvent
Rectangle r = getBounds();
// findPeerAt() expects parent coordinates
LWComponentPeer<?, ?> targetPeer = findPeerAt(r.x + x, r.y + y);
if (id == MouseEvent.MOUSE_EXITED) {
isMouseOver = false;
if (lastMouseEventPeer != null) {
if (lastMouseEventPeer.isEnabled()) {
Point lp = lastMouseEventPeer.windowToLocal(x, y,
this);
Component target = lastMouseEventPeer.getTarget();
postMouseExitedEvent(target, when, modifiers, lp,
screenX, screenY, clickCount, popupTrigger, button);
}
// Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
// to a peer from another window. So we must first check if this peer is
// the same as lastWindowPeer
if (lastCommonMouseEventPeer != null && lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
lastCommonMouseEventPeer = null;
}
lastMouseEventPeer = null;
}
} else if(id == MouseEvent.MOUSE_ENTERED) {
isMouseOver = true;
if (targetPeer != null) {
if (targetPeer.isEnabled()) {
Point lp = targetPeer.windowToLocal(x, y, this);
Component target = targetPeer.getTarget();
postMouseEnteredEvent(target, when, modifiers, lp,
screenX, screenY, clickCount, popupTrigger, button);
}
lastCommonMouseEventPeer = targetPeer;
lastMouseEventPeer = targetPeer;
}
} else {
PlatformWindow topmostPlatforWindow =
platformWindow.getTopmostPlatformWindowUnderMouse();
LWWindowPeer topmostWindowPeer =
topmostPlatforWindow != null ? topmostPlatforWindow.getPeer() : null;
// topmostWindowPeer == null condition is added for the backward
// compatibility with applets. It can be removed when the
// getTopmostPlatformWindowUnderMouse() method will be properly
// implemented in CPlatformEmbeddedFrame class
if (topmostWindowPeer == this || topmostWindowPeer == null) {
generateMouseEnterExitEventsForComponents(when, button, x, y,
screenX, screenY, modifiers, clickCount, popupTrigger,
targetPeer);
} else {
LWComponentPeer<?, ?> topmostTargetPeer =
topmostWindowPeer != null ? topmostWindowPeer.findPeerAt(r.x + x, r.y + y) : null;
topmostWindowPeer.generateMouseEnterExitEventsForComponents(when, button, x, y,
screenX, screenY, modifiers, clickCount, popupTrigger,
topmostTargetPeer);
}
// TODO: fill "bdata" member of AWTEvent
int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
int otherButtonsPressed = modifiers & ~eventButtonMask;
// For pressed/dragged/released events OS X treats other
// mouse buttons as if they were BUTTON2, so we do the same
int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
// MOUSE_ENTERED/EXITED are generated for the components strictly under
// mouse even when dragging. That's why we first update lastMouseEventPeer
// based on initial targetPeer value and only then recalculate targetPeer
// for MOUSE_DRAGGED/RELEASED events
if (id == MouseEvent.MOUSE_PRESSED) {
// Ungrab only if this window is not an owned window of the grabbing one.
if (!isGrabbing() && grabbingWindow != null &&
grabbingWindow != getOwnerFrameDialog(this))
{
grabbingWindow.ungrab();
}
if (otherButtonsPressed == 0) {
mouseClickButtons = eventButtonMask;
} else {
mouseClickButtons |= eventButtonMask;
}
// The window should be focused on mouse click. If it gets activated by the native platform,
// this request will be no op. It will take effect when:
// 1. A simple not focused window is clicked.
// 2. An active but not focused owner frame/dialog is clicked.
// The mouse event then will trigger a focus request "in window" to the component, so the window
// should gain focus before.
requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
mouseDownTarget[targetIdx] = targetPeer;
} else if (id == MouseEvent.MOUSE_DRAGGED) {
// Cocoa dragged event has the information about which mouse
// button is being dragged. Use it to determine the peer that
// should receive the dragged event.
targetPeer = mouseDownTarget[targetIdx];
mouseClickButtons &= ~modifiers;
} else if (id == MouseEvent.MOUSE_RELEASED) {
// TODO: currently, mouse released event goes to the same component
// that received corresponding mouse pressed event. For most cases,
// it's OK, however, we need to make sure that our behavior is consistent
// with 1.6 for cases where component in question have been
// hidden/removed in between of mouse pressed/released events.
targetPeer = mouseDownTarget[targetIdx];
if ((modifiers & eventButtonMask) == 0) {
mouseDownTarget[targetIdx] = null;
}
// mouseClickButtons is updated below, after MOUSE_CLICK is sent
}
if (targetPeer == null) {
//TODO This can happen if this window is invisible. this is correct behavior in this case?
targetPeer = this;
}
Point lp = targetPeer.windowToLocal(x, y, this);
if (targetPeer.isEnabled()) {
MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
when, modifiers, lp.x, lp.y,
screenX, screenY, clickCount,
popupTrigger, button);
postEvent(event);
}
if (id == MouseEvent.MOUSE_RELEASED) {
if ((mouseClickButtons & eventButtonMask) != 0
&& targetPeer.isEnabled()) {
postEvent(new MouseEvent(targetPeer.getTarget(),
MouseEvent.MOUSE_CLICKED,
when, modifiers,
lp.x, lp.y, screenX, screenY,
clickCount, popupTrigger, button));
}
mouseClickButtons &= ~eventButtonMask;
}
}
notifyUpdateCursor();
}
private void generateMouseEnterExitEventsForComponents(long when,
int button, int x, int y, int screenX, int screenY,
int modifiers, int clickCount, boolean popupTrigger,
final LWComponentPeer<?, ?> targetPeer) {
if (!isMouseOver || targetPeer == lastMouseEventPeer) {
return;
}
// Generate Mouse Exit for components
if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
Component target = lastMouseEventPeer.getTarget();
postMouseExitedEvent(target, when, modifiers, oldp, screenX, screenY,
clickCount, popupTrigger, button);
}
lastCommonMouseEventPeer = targetPeer;
lastMouseEventPeer = targetPeer;
// Generate Mouse Enter for components
if (targetPeer != null && targetPeer.isEnabled()) {
Point newp = targetPeer.windowToLocal(x, y, this);
Component target = targetPeer.getTarget();
postMouseEnteredEvent(target, when, modifiers, newp, screenX, screenY, clickCount, popupTrigger, button);
}
}
private void postMouseEnteredEvent(Component target, long when, int modifiers,
Point loc, int xAbs, int yAbs,
int clickCount, boolean popupTrigger, int button) {
updateSecurityWarningVisibility();
postEvent(new MouseEvent(target,
MouseEvent.MOUSE_ENTERED,
when, modifiers,
loc.x, loc.y, xAbs, yAbs,
clickCount, popupTrigger, button));
}
private void postMouseExitedEvent(Component target, long when, int modifiers,
Point loc, int xAbs, int yAbs,
int clickCount, boolean popupTrigger, int button) {
updateSecurityWarningVisibility();
postEvent(new MouseEvent(target,
MouseEvent.MOUSE_EXITED,
when, modifiers,
loc.x, loc.y, xAbs, yAbs,
clickCount, popupTrigger, button));
}
@Override
public void notifyMouseWheelEvent(long when, int x, int y, int modifiers,
int scrollType, int scrollAmount,
int wheelRotation, double preciseWheelRotation,
byte[] bdata)
{
// TODO: could we just use the last mouse event target here?
Rectangle r = getBounds();
// findPeerAt() expects parent coordinates
final LWComponentPeer<?, ?> targetPeer = findPeerAt(r.x + x, r.y + y);
if (targetPeer == null || !targetPeer.isEnabled()) {
return;
}
Point lp = targetPeer.windowToLocal(x, y, this);
// TODO: fill "bdata" member of AWTEvent
// TODO: screenX/screenY
postEvent(new MouseWheelEvent(targetPeer.getTarget(),
MouseEvent.MOUSE_WHEEL,
when, modifiers,
lp.x, lp.y,
0, 0, /* screenX, Y */
0 /* clickCount */, false /* popupTrigger */,
scrollType, scrollAmount,
wheelRotation, preciseWheelRotation));
}
/*
* Called by the delegate when a key is pressed.
*/
@Override
public void notifyKeyEvent(int id, long when, int modifiers,
int keyCode, char keyChar, int keyLocation)
{
LWKeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
Component focusOwner = kfmPeer.getCurrentFocusOwner();
if (focusOwner == null) {
focusOwner = kfmPeer.getCurrentFocusedWindow();
if (focusOwner == null) {
focusOwner = this.getTarget();
}
}
KeyEvent keyEvent = new KeyEvent(focusOwner, id, when, modifiers,
keyCode, keyChar, keyLocation);
AWTAccessor.getKeyEventAccessor().setExtendedKeyCode(keyEvent,
(keyChar == KeyEvent.CHAR_UNDEFINED) ? keyCode
: ExtendedKeyCodes.getExtendedKeyCodeForChar(keyChar));
postEvent(keyEvent);
}
// ---- UTILITY METHODS ---- //
private void activateDisplayListener() {
final GraphicsEnvironment ge =
GraphicsEnvironment.getLocalGraphicsEnvironment();
((SunGraphicsEnvironment) ge).addDisplayChangedListener(this);
}
private void deactivateDisplayListener() {
final GraphicsEnvironment ge =
GraphicsEnvironment.getLocalGraphicsEnvironment();
((SunGraphicsEnvironment) ge).removeDisplayChangedListener(this);
}
private void postWindowStateChangedEvent(int newWindowState) {
if (getTarget() instanceof Frame) {
AWTAccessor.getFrameAccessor().setExtendedState(
(Frame)getTarget(), newWindowState);
}
WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
WindowEvent.WINDOW_STATE_CHANGED,
windowState, newWindowState);
postEvent(stateChangedEvent);
windowState = newWindowState;
updateSecurityWarningVisibility();
}
private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
// TODO: this method can be implemented in a more
// efficient way by forwarding to the delegate
GraphicsDevice gd = gc.getDevice();
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice[] gds = ge.getScreenDevices();
for (int i = 0; i < gds.length; i++) {
if (gds[i] == gd) {
return i;
}
}
// Should never happen if gc is a screen device config
return 0;
}
/*
* This method is called when window's graphics config is changed from
* the app code (e.g. when the window is made non-opaque) or when
* the window is moved to another screen by user.
*
* Returns true if the graphics config has been changed, false otherwise.
*/
private boolean setGraphicsConfig(GraphicsConfiguration gc) {
synchronized (getStateLock()) {
if (graphicsConfig == gc) {
return false;
}
// If window's graphics config is changed from the app code, the
// config correspond to the same device as before; when the window
// is moved by user, graphicsDevice is updated in notifyReshape().
// In either case, there's nothing to do with screenOn here
graphicsConfig = gc;
}
// SurfaceData is replaced later in updateGraphicsData()
return true;
}
/**
* Returns true if the GraphicsDevice has been changed, false otherwise.
*/
public boolean updateGraphicsDevice() {
GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
synchronized (getStateLock()) {
if (graphicsDevice == newGraphicsDevice) {
return false;
}
graphicsDevice = newGraphicsDevice;
}
final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
if (!setGraphicsConfig(newGC)) return false;
SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
public void run() {
AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
}
});
return true;
}
@Override
public final void displayChanged() {
updateGraphicsDevice();
// Replace surface unconditionally, because internal state of the
// GraphicsDevice could be changed.
replaceSurfaceData();
repaintPeer();
}
@Override
public final void paletteChanged() {
// components do not need to react to this event.
}
/*
* May be called by delegate to provide SD to Java2D code.
*/
public SurfaceData getSurfaceData() {
synchronized (surfaceDataLock) {
return surfaceData;
}
}
private void replaceSurfaceData() {
replaceSurfaceData(true);
}
private void replaceSurfaceData(final boolean blit) {
synchronized (surfaceDataLock) {
final SurfaceData oldData = getSurfaceData();
surfaceData = platformWindow.replaceSurfaceData();
final Rectangle size = getSize();
if (getSurfaceData() != null && oldData != getSurfaceData()) {
clearBackground(size.width, size.height);
}
if (blit) {
blitSurfaceData(oldData, getSurfaceData());
}
if (oldData != null && oldData != getSurfaceData()) {
// TODO: drop oldData for D3D/WGL pipelines
// This can only happen when this peer is being created
oldData.flush();
}
}
flushOnscreenGraphics();
}
private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) {
//TODO blit. proof-of-concept
if (src != dst && src != null && dst != null
&& !(dst instanceof NullSurfaceData)
&& !(src instanceof NullSurfaceData)
&& src.getSurfaceType().equals(dst.getSurfaceType())
&& src.getDefaultScale() == dst.getDefaultScale()) {
final Rectangle size = src.getBounds();
final Blit blit = Blit.locate(src.getSurfaceType(),
CompositeType.Src,
dst.getSurfaceType());
if (blit != null) {
blit.Blit(src, dst, AlphaComposite.Src, null, 0, 0, 0, 0,
size.width, size.height);
}
}
}
/**
* Request the window insets from the delegate and compares it with the
* current one. This method is mostly called by the delegate, e.g. when the
* window state is changed and insets should be recalculated.
* <p/>
* This method may be called on the toolkit thread.
*/
public final boolean updateInsets(final Insets newInsets) {
synchronized (getStateLock()) {
if (insets.equals(newInsets)) {
return false;
}
insets = newInsets;
}
return true;
}
public static LWWindowPeer getWindowUnderCursor() {
return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
}
public static LWComponentPeer<?, ?> getPeerUnderCursor() {
return lastCommonMouseEventPeer;
}
/*
* Requests platform to set native focus on a frame/dialog.
* In case of a simple window, triggers appropriate java focus change.
*/
public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
focusLog.fine("requesting native focus to " + this);
}
if (!focusAllowedFor()) {
focusLog.fine("focus is not allowed");
return false;
}
if (platformWindow.rejectFocusRequest(cause)) {
return false;
}
AppContext targetAppContext = AWTAccessor.getComponentAccessor().getAppContext(getTarget());
KeyboardFocusManager kfm = AWTAccessor.getKeyboardFocusManagerAccessor()
.getCurrentKeyboardFocusManager(targetAppContext);
Window currentActive = kfm.getActiveWindow();
Window opposite = LWKeyboardFocusManagerPeer.getInstance().
getCurrentFocusedWindow();
// Make the owner active window.
if (isSimpleWindow()) {
LWWindowPeer owner = getOwnerFrameDialog(this);
// If owner is not natively active, request native
// activation on it w/o sending events up to java.
if (owner != null && !owner.platformWindow.isActive()) {
if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
focusLog.fine("requesting native focus to the owner " + owner);
}
LWWindowPeer currentActivePeer = currentActive == null ? null :
(LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(
currentActive);
// Ensure the opposite is natively active and suppress sending events.
if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
focusLog.fine("the opposite is " + currentActivePeer);
}
currentActivePeer.skipNextFocusChange = true;
}
owner.skipNextFocusChange = true;
owner.platformWindow.requestWindowFocus();
}
// DKFM will synthesize all the focus/activation events correctly.
changeFocusedWindow(true, opposite);
return true;
// In case the toplevel is active but not focused, change focus directly,
// as requesting native focus on it will not have effect.
} else if (getTarget() == currentActive && !getTarget().hasFocus()) {
changeFocusedWindow(true, opposite);
return true;
}
return platformWindow.requestWindowFocus();
}
protected boolean focusAllowedFor() {
Window window = getTarget();
// TODO: check if modal blocked
return window.isVisible() && window.isEnabled() && isFocusableWindow();
}
private boolean isFocusableWindow() {
boolean focusable = getTarget().isFocusableWindow();
if (isSimpleWindow()) {
LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
if (ownerPeer == null) {
return false;
}
return focusable && ownerPeer.getTarget().isFocusableWindow();
}
return focusable;
}
public boolean isSimpleWindow() {
Window window = getTarget();
return !(window instanceof Dialog || window instanceof Frame);
}
@Override
public void emulateActivation(boolean activate) {
changeFocusedWindow(activate, null);
}
/*
* Changes focused window on java level.
*/
protected void changeFocusedWindow(boolean becomesFocused, Window opposite) {
if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
}
if (skipNextFocusChange) {
focusLog.fine("skipping focus change");
skipNextFocusChange = false;
return;
}
if (!isFocusableWindow() && becomesFocused) {
focusLog.fine("the window is not focusable");
return;
}
if (becomesFocused) {
synchronized (getPeerTreeLock()) {
if (blocker != null) {
if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
focusLog.finest("the window is blocked by " + blocker);
}
return;
}
}
}
// Note, the method is not called:
// - when the opposite (gaining focus) window is an owned/owner window.
// - for a simple window in any case.
if (!becomesFocused &&
(isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this))
{
if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
focusLog.fine("ungrabbing on " + grabbingWindow);
}
// ungrab a simple window if its owner looses activation.
grabbingWindow.ungrab();
}
KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
WindowEvent windowEvent = new TimedWindowEvent(getTarget(), eventID, opposite, System.currentTimeMillis());
// TODO: wrap in SequencedEvent
postEvent(windowEvent);
}
static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
Window owner = (peer != null ? peer.getTarget().getOwner() : null);
while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
owner = owner.getOwner();
}
return owner == null ? null :
(LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(owner);
}
/**
* Returns the foremost modal blocker of this window, or null.
*/
public LWWindowPeer getBlocker() {
synchronized (getPeerTreeLock()) {
LWWindowPeer blocker = this.blocker;
if (blocker == null) {
return null;
}
while (blocker.blocker != null) {
blocker = blocker.blocker;
}
return blocker;
}
}
@Override
public void enterFullScreenMode() {
platformWindow.enterFullScreenMode();
updateSecurityWarningVisibility();
}
@Override
public void exitFullScreenMode() {
platformWindow.exitFullScreenMode();
updateSecurityWarningVisibility();
}
public long getLayerPtr() {
return getPlatformWindow().getLayerPtr();
}
void grab() {
if (grabbingWindow != null && !isGrabbing()) {
grabbingWindow.ungrab();
}
grabbingWindow = this;
}
final void ungrab(boolean doPost) {
if (isGrabbing()) {
grabbingWindow = null;
if (doPost) {
postEvent(new UngrabEvent(getTarget()));
}
}
}
void ungrab() {
ungrab(true);
}
private boolean isGrabbing() {
return this == grabbingWindow;
}
public PeerType getPeerType() {
return peerType;
}
public void updateSecurityWarningVisibility() {
if (warningWindow == null) {
return;
}
if (!isVisible()) {
return; // The warning window should already be hidden.
}
boolean show = false;
if (!platformWindow.isFullScreenMode()) {
if (isVisible()) {
if (LWKeyboardFocusManagerPeer.getInstance().getCurrentFocusedWindow() ==
getTarget()) {
show = true;
}
if (platformWindow.isUnderMouse() || warningWindow.isUnderMouse()) {
show = true;
}
}
}
warningWindow.setVisible(show, true);
}
@Override
public String toString() {
return super.toString() + " [target is " + getTarget() + "]";
}
}
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