/*

 * Copyright (c) 2011, 2017, 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package sun.lwawt.macosx;

import java.awt.Color;

import java.awt.Component;

import java.awt.DefaultKeyboardFocusManager;

import java.awt.Dialog;

import java.awt.Dialog.ModalityType;

import java.awt.Font;

import java.awt.FontMetrics;

import java.awt.Frame;

import java.awt.GraphicsDevice;

import java.awt.Insets;

import java.awt.MenuBar;

import java.awt.Point;

import java.awt.Rectangle;

import java.awt.Toolkit;

import java.awt.Window;

import java.awt.event.FocusEvent;

import java.awt.event.WindowEvent;

import java.beans.PropertyChangeEvent;

import java.beans.PropertyChangeListener;

import java.lang.reflect.InvocationTargetException;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Comparator;

import java.util.concurrent.atomic.AtomicBoolean;

import java.util.concurrent.atomic.AtomicLong;

import java.util.concurrent.atomic.AtomicReference;

import javax.swing.JRootPane;

import javax.swing.RootPaneContainer;

import javax.swing.SwingUtilities;

import com.apple.laf.ClientPropertyApplicator;

import com.apple.laf.ClientPropertyApplicator.Property;

import sun.awt.AWTAccessor;

import sun.awt.AWTAccessor.ComponentAccessor;

import sun.awt.AWTAccessor.WindowAccessor;

import sun.java2d.SurfaceData;

import sun.java2d.opengl.CGLSurfaceData;

import sun.lwawt.LWLightweightFramePeer;

import sun.lwawt.LWToolkit;

import sun.lwawt.LWWindowPeer;

import sun.lwawt.LWWindowPeer.PeerType;

import sun.lwawt.PlatformWindow;

import sun.util.logging.PlatformLogger;

public class CPlatformWindow extends CFRetainedResource implements PlatformWindow {

    private native long nativeCreateNSWindow(long nsViewPtr,long ownerPtr, long styleBits, double x, double y, double w, double h);

    private static native void nativeSetNSWindowStyleBits(long nsWindowPtr, int mask, int data);

    private static native void nativeSetNSWindowMenuBar(long nsWindowPtr, long menuBarPtr);

    private static native Insets nativeGetNSWindowInsets(long nsWindowPtr);

    private static native void nativeSetNSWindowBounds(long nsWindowPtr, double x, double y, double w, double h);

    private static native void nativeSetNSWindowLocationByPlatform(long nsWindowPtr);

    private static native void nativeSetNSWindowStandardFrame(long nsWindowPtr,

            double x, double y, double w, double h);

    private static native void nativeSetNSWindowMinMax(long nsWindowPtr, double minW, double minH, double maxW, double maxH);

    private static native void nativePushNSWindowToBack(long nsWindowPtr);

    private static native void nativePushNSWindowToFront(long nsWindowPtr);

    private static native void nativeSetNSWindowTitle(long nsWindowPtr, String title);

    private static native void nativeRevalidateNSWindowShadow(long nsWindowPtr);

    private static native void nativeSetNSWindowMinimizedIcon(long nsWindowPtr, long nsImage);

    private static native void nativeSetNSWindowRepresentedFilename(long nsWindowPtr, String representedFilename);

    private static native void nativeSetEnabled(long nsWindowPtr, boolean isEnabled);

    private static native void nativeSynthesizeMouseEnteredExitedEvents();

    private static native void nativeSynthesizeMouseEnteredExitedEvents(long nsWindowPtr, int eventType);

    private static native void nativeDispose(long nsWindowPtr);

    private static native void nativeEnterFullScreenMode(long nsWindowPtr);

    private static native void nativeExitFullScreenMode(long nsWindowPtr);

    static native CPlatformWindow nativeGetTopmostPlatformWindowUnderMouse();

    // Loger to report issues happened during execution but that do not affect functionality

    private static final PlatformLogger logger = PlatformLogger.getLogger("sun.lwawt.macosx.CPlatformWindow");

    private static final PlatformLogger focusLogger = PlatformLogger.getLogger("sun.lwawt.macosx.focus.CPlatformWindow");

    // for client properties

    public static final String WINDOW_BRUSH_METAL_LOOK = "apple.awt.brushMetalLook";

    public static final String WINDOW_DRAGGABLE_BACKGROUND = "apple.awt.draggableWindowBackground";

    public static final String WINDOW_ALPHA = "Window.alpha";

    public static final String WINDOW_SHADOW = "Window.shadow";

    public static final String WINDOW_STYLE = "Window.style";

    public static final String WINDOW_SHADOW_REVALIDATE_NOW = "apple.awt.windowShadow.revalidateNow";

    public static final String WINDOW_DOCUMENT_MODIFIED = "Window.documentModified";

    public static final String WINDOW_DOCUMENT_FILE = "Window.documentFile";

    public static final String WINDOW_CLOSEABLE = "Window.closeable";

    public static final String WINDOW_MINIMIZABLE = "Window.minimizable";

    public static final String WINDOW_ZOOMABLE = "Window.zoomable";

    public static final String WINDOW_HIDES_ON_DEACTIVATE="Window.hidesOnDeactivate";

    public static final String WINDOW_DOC_MODAL_SHEET = "apple.awt.documentModalSheet";

    public static final String WINDOW_FADE_DELEGATE = "apple.awt._windowFadeDelegate";

    public static final String WINDOW_FADE_IN = "apple.awt._windowFadeIn";

    public static final String WINDOW_FADE_OUT = "apple.awt._windowFadeOut";

    public static final String WINDOW_FULLSCREENABLE = "apple.awt.fullscreenable";

    // Yeah, I know. But it's easier to deal with ints from JNI

    static final int MODELESS = 0;

    static final int DOCUMENT_MODAL = 1;

    static final int APPLICATION_MODAL = 2;

    static final int TOOLKIT_MODAL = 3;

    // window style bits

    static final int _RESERVED_FOR_DATA = 1 << 0;

    // corresponds to native style mask bits

    static final int DECORATED = 1 << 1;

    static final int TEXTURED = 1 << 2;

    static final int UNIFIED = 1 << 3;

    static final int UTILITY = 1 << 4;

    static final int HUD = 1 << 5;

    static final int SHEET = 1 << 6;

    static final int CLOSEABLE = 1 << 7;

    static final int MINIMIZABLE = 1 << 8;

    static final int RESIZABLE = 1 << 9; // both a style bit and prop bit

    static final int NONACTIVATING = 1 << 24;

    static final int IS_DIALOG = 1 << 25;

    static final int IS_MODAL = 1 << 26;

    static final int IS_POPUP = 1 << 27;

    static final int _STYLE_PROP_BITMASK = DECORATED | TEXTURED | UNIFIED | UTILITY | HUD | SHEET | CLOSEABLE | MINIMIZABLE | RESIZABLE;

    // corresponds to method-based properties

    static final int HAS_SHADOW = 1 << 10;

    static final int ZOOMABLE = 1 << 11;

    static final int ALWAYS_ON_TOP = 1 << 15;

    static final int HIDES_ON_DEACTIVATE = 1 << 17;

    static final int DRAGGABLE_BACKGROUND = 1 << 19;

    static final int DOCUMENT_MODIFIED = 1 << 21;

    static final int FULLSCREENABLE = 1 << 23;

    static final int _METHOD_PROP_BITMASK = RESIZABLE | HAS_SHADOW | ZOOMABLE | ALWAYS_ON_TOP | HIDES_ON_DEACTIVATE | DRAGGABLE_BACKGROUND | DOCUMENT_MODIFIED | FULLSCREENABLE;

    // corresponds to callback-based properties

    static final int SHOULD_BECOME_KEY = 1 << 12;

    static final int SHOULD_BECOME_MAIN = 1 << 13;

    static final int MODAL_EXCLUDED = 1 << 16;

    static final int _CALLBACK_PROP_BITMASK = SHOULD_BECOME_KEY | SHOULD_BECOME_MAIN | MODAL_EXCLUDED;

    static int SET(final int bits, final int mask, final boolean value) {

        if (value) return (bits | mask);

        return bits & ~mask;

    }

    static boolean IS(final int bits, final int mask) {

        return (bits & mask) != 0;

    }

    @SuppressWarnings({"unchecked", "rawtypes"})

    static ClientPropertyApplicator<JRootPane, CPlatformWindow> CLIENT_PROPERTY_APPLICATOR = new ClientPropertyApplicator<JRootPane, CPlatformWindow>(new Property[] {

        new Property<CPlatformWindow>(WINDOW_DOCUMENT_MODIFIED) { public void applyProperty(final CPlatformWindow c, final Object value) {

            c.setStyleBits(DOCUMENT_MODIFIED, value == null ? false : Boolean.parseBoolean(value.toString()));

        }},

        new Property<CPlatformWindow>(WINDOW_BRUSH_METAL_LOOK) { public void applyProperty(final CPlatformWindow c, final Object value) {

            c.setStyleBits(TEXTURED, Boolean.parseBoolean(value.toString()));

        }},

        new Property<CPlatformWindow>(WINDOW_ALPHA) { public void applyProperty(final CPlatformWindow c, final Object value) {

            c.target.setOpacity(value == null ? 1.0f : Float.parseFloat(value.toString()));

        }},

        new Property<CPlatformWindow>(WINDOW_SHADOW) { public void applyProperty(final CPlatformWindow c, final Object value) {

            c.setStyleBits(HAS_SHADOW, value == null ? true : Boolean.parseBoolean(value.toString()));

        }},

        new Property<CPlatformWindow>(WINDOW_MINIMIZABLE) { public void applyProperty(final CPlatformWindow c, final Object value) {

            c.setStyleBits(MINIMIZABLE, Boolean.parseBoolean(value.toString()));

        }},

        new Property<CPlatformWindow>(WINDOW_CLOSEABLE) { public void applyProperty(final CPlatformWindow c, final Object value) {

            c.setStyleBits(CLOSEABLE, Boolean.parseBoolean(value.toString()));

        }},

        new Property<CPlatformWindow>(WINDOW_ZOOMABLE) { public void applyProperty(final CPlatformWindow c, final Object value) {

            boolean zoomable = Boolean.parseBoolean(value.toString());

            if (c.target instanceof RootPaneContainer

                    && c.getPeer().getPeerType() == PeerType.FRAME) {

                if (c.isInFullScreen && !zoomable) {

                    c.toggleFullScreen();

                }

            }

            c.setStyleBits(ZOOMABLE, zoomable);

        }},

        new Property<CPlatformWindow>(WINDOW_FULLSCREENABLE) { public void applyProperty(final CPlatformWindow c, final Object value) {

            boolean fullscrenable = Boolean.parseBoolean(value.toString());

            if (c.target instanceof RootPaneContainer

                    && c.getPeer().getPeerType() == PeerType.FRAME) {

                if (c.isInFullScreen && !fullscrenable) {

                    c.toggleFullScreen();

                }

            }

            c.setStyleBits(FULLSCREENABLE, fullscrenable);

        }},

        new Property<CPlatformWindow>(WINDOW_SHADOW_REVALIDATE_NOW) { public void applyProperty(final CPlatformWindow c, final Object value) {

            c.execute(ptr -> nativeRevalidateNSWindowShadow(ptr));

        }},

        new Property<CPlatformWindow>(WINDOW_DOCUMENT_FILE) { public void applyProperty(final CPlatformWindow c, final Object value) {

            if (value == null || !(value instanceof java.io.File)) {

                c.execute(ptr->nativeSetNSWindowRepresentedFilename(ptr, null));

                return;

            }

            final String filename = ((java.io.File)value).getAbsolutePath();

            c.execute(ptr->nativeSetNSWindowRepresentedFilename(ptr, filename));

        }}

    }) {

        @SuppressWarnings("deprecation")

        public CPlatformWindow convertJComponentToTarget(final JRootPane p) {

            Component root = SwingUtilities.getRoot(p);

            final ComponentAccessor acc = AWTAccessor.getComponentAccessor();

            if (root == null || acc.getPeer(root) == null) return null;

            return (CPlatformWindow)((LWWindowPeer)acc.getPeer(root)).getPlatformWindow();

        }

    };

    private final Comparator<Window> siblingsComparator = (w1, w2) -> {

        if (w1 == w2) {

            return 0;

        }

        ComponentAccessor componentAccessor = AWTAccessor.getComponentAccessor();

        Object p1 = componentAccessor.getPeer(w1);

        Object p2 = componentAccessor.getPeer(w2);

        if (p1 instanceof LWWindowPeer && p2 instanceof LWWindowPeer) {

            return Long.compare(

                    ((CPlatformWindow) (((LWWindowPeer) p1).getPlatformWindow())).lastBecomeMainTime,

                    ((CPlatformWindow) (((LWWindowPeer) p2).getPlatformWindow())).lastBecomeMainTime);

        }

        return 0;

    };

    // Bounds of the native widget but in the Java coordinate system.

    // In order to keep it up-to-date we will update them on

    // 1) setting native bounds via nativeSetBounds() call

    // 2) getting notification from the native level via deliverMoveResizeEvent()

    private Rectangle nativeBounds = new Rectangle(0, 0, 0, 0);

    private volatile boolean isFullScreenMode;

    private boolean isFullScreenAnimationOn;

    private volatile boolean isInFullScreen;

    private volatile boolean isIconifyAnimationActive;

    private volatile boolean isZoomed;

    private Window target;

    private LWWindowPeer peer;

    protected CPlatformView contentView;

    protected CPlatformWindow owner;

    protected boolean visible = false; // visibility status from native perspective

    private boolean undecorated; // initialized in getInitialStyleBits()

    private Rectangle normalBounds = null; // not-null only for undecorated maximized windows

    private CPlatformResponder responder;

    private long lastBecomeMainTime; // this is necessary to preserve right siblings order

    public CPlatformWindow() {

        super(0, true);

    }

    /*

     * Delegate initialization (create native window and all the

     * related resources).

     */

    @Override // PlatformWindow

    public void initialize(Window _target, LWWindowPeer _peer, PlatformWindow _owner) {

        initializeBase(_target, _peer, _owner, new CPlatformView());

        final int styleBits = getInitialStyleBits();

        responder = createPlatformResponder();

        contentView = createContentView();

        contentView.initialize(peer, responder);

        Rectangle bounds;

        if (!IS(DECORATED, styleBits)) {

            // For undecorated frames the move/resize event does not come if the frame is centered on the screen

            // so we need to set a stub location to force an initial move/resize. Real bounds would be set later.

            bounds = new Rectangle(0, 0, 1, 1);

        } else {

            bounds = _peer.constrainBounds(_target.getBounds());

        }

        AtomicLong ref = new AtomicLong();

        contentView.execute(viewPtr -> {

            boolean hasOwnerPtr = false;

            if (owner != null) {

                hasOwnerPtr = 0L != owner.executeGet(ownerPtr -> {

                    ref.set(nativeCreateNSWindow(viewPtr, ownerPtr, styleBits,

                                                    bounds.x, bounds.y,

                                                    bounds.width, bounds.height));

                    return 1;

                });

            }

            if (!hasOwnerPtr) {

                ref.set(nativeCreateNSWindow(viewPtr, 0,

                                             styleBits, bounds.x, bounds.y,

                                             bounds.width, bounds.height));

            }

        });

        setPtr(ref.get());

        if (target instanceof javax.swing.RootPaneContainer) {

            final javax.swing.JRootPane rootpane = ((javax.swing.RootPaneContainer)target).getRootPane();

            if (rootpane != null) rootpane.addPropertyChangeListener("ancestor", new PropertyChangeListener() {

                public void propertyChange(final PropertyChangeEvent evt) {

                    CLIENT_PROPERTY_APPLICATOR.attachAndApplyClientProperties(rootpane);

                    rootpane.removePropertyChangeListener("ancestor", this);

                }

            });

        }

        validateSurface();

    }

    protected void initializeBase(Window target, LWWindowPeer peer, PlatformWindow owner, CPlatformView view) {

        this.peer = peer;

        this.target = target;

        if (owner instanceof CPlatformWindow) {

            this.owner = (CPlatformWindow)owner;

        }

        this.contentView = view;

    }

    protected CPlatformResponder createPlatformResponder() {

        return new CPlatformResponder(peer, false);

    }

    protected CPlatformView createContentView() {

        return new CPlatformView();

    }

    protected int getInitialStyleBits() {

        // defaults style bits

        int styleBits = DECORATED | HAS_SHADOW | CLOSEABLE | MINIMIZABLE | ZOOMABLE | RESIZABLE;

        if (isNativelyFocusableWindow()) {

            styleBits = SET(styleBits, SHOULD_BECOME_KEY, true);

            styleBits = SET(styleBits, SHOULD_BECOME_MAIN, true);

        }

        final boolean isFrame = (target instanceof Frame);

        final boolean isDialog = (target instanceof Dialog);

        final boolean isPopup = (target.getType() == Window.Type.POPUP);

        if (isDialog) {

            styleBits = SET(styleBits, MINIMIZABLE, false);

        }

        // Either java.awt.Frame or java.awt.Dialog can be undecorated, however java.awt.Window always is undecorated.

        {

            this.undecorated = isFrame ? ((Frame)target).isUndecorated() : (isDialog ? ((Dialog)target).isUndecorated() : true);

            if (this.undecorated) styleBits = SET(styleBits, DECORATED, false);

        }

        // Either java.awt.Frame or java.awt.Dialog can be resizable, however java.awt.Window is never resizable

        {

            final boolean resizable = isFrame ? ((Frame)target).isResizable() : (isDialog ? ((Dialog)target).isResizable() : false);

            styleBits = SET(styleBits, RESIZABLE, resizable);

            if (!resizable) {

                styleBits = SET(styleBits, ZOOMABLE, false);

            }

        }

        if (target.isAlwaysOnTop()) {

            styleBits = SET(styleBits, ALWAYS_ON_TOP, true);

        }

        if (target.getModalExclusionType() == Dialog.ModalExclusionType.APPLICATION_EXCLUDE) {

            styleBits = SET(styleBits, MODAL_EXCLUDED, true);

        }

        // If the target is a dialog, popup or tooltip we want it to ignore the brushed metal look.

        if (isPopup) {

            styleBits = SET(styleBits, TEXTURED, false);

            // Popups in applets don't activate applet's process

            styleBits = SET(styleBits, NONACTIVATING, true);

            styleBits = SET(styleBits, IS_POPUP, true);

        }

        if (Window.Type.UTILITY.equals(target.getType())) {

            styleBits = SET(styleBits, UTILITY, true);

        }

        if (target instanceof javax.swing.RootPaneContainer) {

            javax.swing.JRootPane rootpane = ((javax.swing.RootPaneContainer)target).getRootPane();

            Object prop = null;

            prop = rootpane.getClientProperty(WINDOW_BRUSH_METAL_LOOK);

            if (prop != null) {

                styleBits = SET(styleBits, TEXTURED, Boolean.parseBoolean(prop.toString()));

            }

            if (isDialog && ((Dialog)target).getModalityType() == ModalityType.DOCUMENT_MODAL) {

                prop = rootpane.getClientProperty(WINDOW_DOC_MODAL_SHEET);

                if (prop != null) {

                    styleBits = SET(styleBits, SHEET, Boolean.parseBoolean(prop.toString()));

                }

            }

            prop = rootpane.getClientProperty(WINDOW_STYLE);

            if (prop != null) {

                if ("small".equals(prop))  {

                    styleBits = SET(styleBits, UTILITY, true);

                    if (target.isAlwaysOnTop() && rootpane.getClientProperty(WINDOW_HIDES_ON_DEACTIVATE) == null) {

                        styleBits = SET(styleBits, HIDES_ON_DEACTIVATE, true);

                    }

                }

                if ("textured".equals(prop)) styleBits = SET(styleBits, TEXTURED, true);

                if ("unified".equals(prop)) styleBits = SET(styleBits, UNIFIED, true);

                if ("hud".equals(prop)) styleBits = SET(styleBits, HUD, true);

            }

            prop = rootpane.getClientProperty(WINDOW_HIDES_ON_DEACTIVATE);

            if (prop != null) {

                styleBits = SET(styleBits, HIDES_ON_DEACTIVATE, Boolean.parseBoolean(prop.toString()));

            }

            prop = rootpane.getClientProperty(WINDOW_CLOSEABLE);

            if (prop != null) {

                styleBits = SET(styleBits, CLOSEABLE, Boolean.parseBoolean(prop.toString()));

            }

            prop = rootpane.getClientProperty(WINDOW_MINIMIZABLE);

            if (prop != null) {

                styleBits = SET(styleBits, MINIMIZABLE, Boolean.parseBoolean(prop.toString()));

            }

            prop = rootpane.getClientProperty(WINDOW_ZOOMABLE);

            if (prop != null) {

                styleBits = SET(styleBits, ZOOMABLE, Boolean.parseBoolean(prop.toString()));

            }

            prop = rootpane.getClientProperty(WINDOW_FULLSCREENABLE);

            if (prop != null) {

                styleBits = SET(styleBits, FULLSCREENABLE, Boolean.parseBoolean(prop.toString()));

            }

            prop = rootpane.getClientProperty(WINDOW_SHADOW);

            if (prop != null) {

                styleBits = SET(styleBits, HAS_SHADOW, Boolean.parseBoolean(prop.toString()));

            }

            prop = rootpane.getClientProperty(WINDOW_DRAGGABLE_BACKGROUND);

            if (prop != null) {

                styleBits = SET(styleBits, DRAGGABLE_BACKGROUND, Boolean.parseBoolean(prop.toString()));

            }

        }

        if (isDialog) {

            styleBits = SET(styleBits, IS_DIALOG, true);

            if (((Dialog) target).isModal()) {

                styleBits = SET(styleBits, IS_MODAL, true);

            }

        }

        peer.setTextured(IS(TEXTURED, styleBits));

        return styleBits;

    }

    // this is the counter-point to -[CWindow _nativeSetStyleBit:]

    private void setStyleBits(final int mask, final boolean value) {

        execute(ptr -> nativeSetNSWindowStyleBits(ptr, mask, value ? mask : 0));

    }

    private native void _toggleFullScreenMode(final long model);

    public void toggleFullScreen() {

        execute(this::_toggleFullScreenMode);

    }

    @Override // PlatformWindow

    public void setMenuBar(MenuBar mb) {

        CMenuBar mbPeer = (CMenuBar)LWToolkit.targetToPeer(mb);

        execute(nsWindowPtr->{

            if (mbPeer != null) {

                mbPeer.execute(ptr -> nativeSetNSWindowMenuBar(nsWindowPtr, ptr));

            } else {

                nativeSetNSWindowMenuBar(nsWindowPtr, 0);

            }

        });

    }

    @Override // PlatformWindow