/*

 * Copyright (c) 2011, 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.

 */

#import <Cocoa/Cocoa.h>

#import <JavaNativeFoundation/JavaNativeFoundation.h>

#import <JavaRuntimeSupport/JavaRuntimeSupport.h>

#import "sun_lwawt_macosx_CPlatformWindow.h"

#import "com_apple_eawt_event_GestureHandler.h"

#import "com_apple_eawt_FullScreenHandler.h"

#import "AWTWindow.h"

#import "AWTView.h"

#import "CMenu.h"

#import "CMenuBar.h"

#import "LWCToolkit.h"

#import "GeomUtilities.h"

#import "ThreadUtilities.h"

#import "OSVersion.h"

#define MASK(KEY) \

    (sun_lwawt_macosx_CPlatformWindow_ ## KEY)

#define IS(BITS, KEY) \

    ((BITS & MASK(KEY)) != 0)

#define SET(BITS, KEY, VALUE) \

    BITS = VALUE ? BITS | MASK(KEY) : BITS & ~MASK(KEY)

static JNF_CLASS_CACHE(jc_CPlatformWindow, "sun/lwawt/macosx/CPlatformWindow");

@interface JavaResizeGrowBoxOverlayWindow : NSWindow { }

@end

@implementation JavaResizeGrowBoxOverlayWindow

- (BOOL) accessibilityIsIgnored

{

    return YES;

}

- (NSArray *)accessibilityChildrenAttribute

{

    return nil;

}

@end

@implementation AWTWindow

@synthesize javaPlatformWindow;

@synthesize javaMenuBar;

@synthesize growBoxWindow;

@synthesize javaMinSize;

@synthesize javaMaxSize;

@synthesize styleBits;

- (void) updateMinMaxSize:(BOOL)resizable {

    if (resizable) {

        [self setMinSize:self.javaMinSize];

        [self setMaxSize:self.javaMaxSize];

    } else {

        NSRect currentFrame = [self frame];

        [self setMinSize:currentFrame.size];

        [self setMaxSize:currentFrame.size];

    }

}

// creates a new NSWindow style mask based on the _STYLE_PROP_BITMASK bits

+ (NSUInteger) styleMaskForStyleBits:(jint)styleBits {

    NSUInteger type = 0;

    if (IS(styleBits, DECORATED)) {

        type |= NSTitledWindowMask;

        if (IS(styleBits, CLOSEABLE))   type |= NSClosableWindowMask;

        if (IS(styleBits, MINIMIZABLE)) type |= NSMiniaturizableWindowMask;

        if (IS(styleBits, RESIZABLE))   type |= NSResizableWindowMask;

    } else {

        type |= NSBorderlessWindowMask;

    }

    return type;

}

// updates _METHOD_PROP_BITMASK based properties on the window

- (void) setPropertiesForStyleBits:(jint)bits mask:(jint)mask {

    if (IS(mask, RESIZABLE)) {

        BOOL resizable = IS(bits, RESIZABLE);

        [self updateMinMaxSize:resizable];

        [self setShowsResizeIndicator:resizable];

    }

    if (IS(mask, HAS_SHADOW)) {

        [self setHasShadow:IS(bits, HAS_SHADOW)];

    }

    if (IS(mask, ZOOMABLE)) {

        [[self standardWindowButton:NSWindowZoomButton] setEnabled:IS(bits, ZOOMABLE)];

    }

    if (IS(mask, ALWAYS_ON_TOP)) {

        [self setLevel:IS(bits, ALWAYS_ON_TOP) ? NSFloatingWindowLevel : NSNormalWindowLevel];

    }

    if (IS(mask, HIDES_ON_DEACTIVATE)) {

        [self setHidesOnDeactivate:IS(bits, HIDES_ON_DEACTIVATE)];

    }

    if (IS(mask, DRAGGABLE_BACKGROUND)) {

        [self setMovableByWindowBackground:IS(bits, DRAGGABLE_BACKGROUND)];

    }

    if (IS(mask, DOCUMENT_MODIFIED)) {

        [self setDocumentEdited:IS(bits, DOCUMENT_MODIFIED)];

    }

    if ([self respondsToSelector:@selector(toggleFullScreen:)]) {

        if (IS(mask, FULLSCREENABLE)) {

            [self setCollectionBehavior:(1 << 7) /*NSWindowCollectionBehaviorFullScreenPrimary*/];

        } else {

            [self setCollectionBehavior:NSWindowCollectionBehaviorDefault];

        }

    }

}

- (BOOL) shouldShowGrowBox {

    return isSnowLeopardOrLower() && IS(self.styleBits, RESIZABLE);

}

- (NSImage *) createGrowBoxImage {

    NSImage *image = [[NSImage alloc] initWithSize:NSMakeSize(12, 12)];

    JRSUIControlRef growBoxWidget = JRSUIControlCreate(FALSE);

    JRSUIControlSetWidget(growBoxWidget, kJRSUI_Widget_growBoxTextured);

    JRSUIControlSetWindowType(growBoxWidget, kJRSUI_WindowType_utility);

    JRSUIRendererRef renderer = JRSUIRendererCreate();

    [image lockFocus]; // sets current graphics context to that of the image

    JRSUIControlDraw(renderer, growBoxWidget, [[NSGraphicsContext currentContext] graphicsPort], CGRectMake(0, 1, 11, 11));

    [image unlockFocus];

    JRSUIRendererRelease(renderer);

    JRSUIControlRelease(growBoxWidget);

    return image;

}

- (id) initWithPlatformWindow:(JNFWeakJObjectWrapper *)platformWindow

                    styleBits:(jint)bits

                    frameRect:(NSRect)rect

                  contentView:(NSView *)view

{

AWT_ASSERT_APPKIT_THREAD;

    NSUInteger styleMask = [AWTWindow styleMaskForStyleBits:bits];

    NSRect contentRect = rect; //[NSWindow contentRectForFrameRect:rect styleMask:styleMask];

    if (contentRect.size.width <= 0.0) {

        contentRect.size.width = 1.0;

    }

    if (contentRect.size.height <= 0.0) {

        contentRect.size.height = 1.0;

    }

    self = [super initWithContentRect:contentRect

                            styleMask:styleMask

                              backing:NSBackingStoreBuffered

                                defer:NO];

    if (self == nil) return nil; // no hope

    self.javaPlatformWindow = platformWindow;

    self.styleBits = bits;

    [self setPropertiesForStyleBits:styleBits mask:MASK(_METHOD_PROP_BITMASK)];

    [self setDelegate:self];

    [self setContentView:view];

    [self setInitialFirstResponder:view];

    [self setReleasedWhenClosed:NO];

    [self setPreservesContentDuringLiveResize:YES];

    if ([self shouldShowGrowBox]) {

        NSImage *growBoxImage = [self createGrowBoxImage];

        growBoxWindow = [[JavaResizeGrowBoxOverlayWindow alloc] initWithContentRect:NSMakeRect(0, 0, [growBoxImage size].width, [growBoxImage size].height) styleMask:NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:NO];

        [self.growBoxWindow setIgnoresMouseEvents:YES];

        [self.growBoxWindow setOpaque:NO];

        [self.growBoxWindow setBackgroundColor:[NSColor clearColor]];

        [self.growBoxWindow setHasShadow:NO];

        [self.growBoxWindow setReleasedWhenClosed:NO];

        NSImageView *imageView = [[NSImageView alloc] initWithFrame:[self.growBoxWindow frame]];

        [imageView setEditable:NO];

        [imageView setAnimates:NO];

        [imageView setAllowsCutCopyPaste:NO];

        [self.growBoxWindow setContentView:imageView];

        [imageView setImage:growBoxImage];

        [growBoxImage release];

        [imageView release];

        [self addChildWindow:self.growBoxWindow ordered:NSWindowAbove];

        [self adjustGrowBoxWindow];

    } else growBoxWindow = nil;

    return self;

}

- (void) dealloc {

AWT_ASSERT_APPKIT_THREAD;

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    [self.javaPlatformWindow setJObject:nil withEnv:env];

    self.growBoxWindow = nil;

    [super dealloc];

}

// NSWindow overrides

- (BOOL) canBecomeKeyWindow {

AWT_ASSERT_APPKIT_THREAD;

    return IS(self.styleBits, SHOULD_BECOME_KEY);

}

- (BOOL) canBecomeMainWindow {

AWT_ASSERT_APPKIT_THREAD;

    return IS(self.styleBits, SHOULD_BECOME_MAIN);

}

- (BOOL) worksWhenModal {

AWT_ASSERT_APPKIT_THREAD;

    return IS(self.styleBits, MODAL_EXCLUDED);

}

// Gesture support

- (void)postGesture:(NSEvent *)event as:(jint)type a:(jdouble)a b:(jdouble)b {

AWT_ASSERT_APPKIT_THREAD;

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow != NULL) {

        // extract the target AWT Window object out of the CPlatformWindow

        static JNF_MEMBER_CACHE(jf_target, jc_CPlatformWindow, "target", "Ljava/awt/Window;");

        jobject awtWindow = JNFGetObjectField(env, platformWindow, jf_target);

        if (awtWindow != NULL) {

            // translate the point into Java coordinates

            NSPoint loc = [event locationInWindow];

            loc.y = [self frame].size.height - loc.y;

            // send up to the GestureHandler to recursively dispatch on the AWT event thread

            static JNF_CLASS_CACHE(jc_GestureHandler, "com/apple/eawt/event/GestureHandler");

            static JNF_STATIC_MEMBER_CACHE(sjm_handleGestureFromNative, jc_GestureHandler, "handleGestureFromNative", "(Ljava/awt/Window;IDDDD)V");

            JNFCallStaticVoidMethod(env, sjm_handleGestureFromNative, awtWindow, type, (jdouble)loc.x, (jdouble)loc.y, (jdouble)a, (jdouble)b);

            (*env)->DeleteLocalRef(env, awtWindow);

        }

        (*env)->DeleteLocalRef(env, platformWindow);

    }

}

- (void)beginGestureWithEvent:(NSEvent *)event {

    [self postGesture:event

                   as:com_apple_eawt_event_GestureHandler_PHASE

                    a:-1.0

                    b:0.0];

}

- (void)endGestureWithEvent:(NSEvent *)event {

    [self postGesture:event

                   as:com_apple_eawt_event_GestureHandler_PHASE

                    a:1.0

                    b:0.0];

}

- (void)magnifyWithEvent:(NSEvent *)event {

    [self postGesture:event

                   as:com_apple_eawt_event_GestureHandler_MAGNIFY

                    a:[event magnification]

                    b:0.0];

}

- (void)rotateWithEvent:(NSEvent *)event {

    [self postGesture:event

                   as:com_apple_eawt_event_GestureHandler_ROTATE

                    a:[event rotation]

                    b:0.0];

}

- (void)swipeWithEvent:(NSEvent *)event {

    [self postGesture:event

                   as:com_apple_eawt_event_GestureHandler_SWIPE

                    a:[event deltaX]

                    b:[event deltaY]];

}

// NSWindowDelegate methods

- (void) adjustGrowBoxWindow {

    if (self.growBoxWindow != nil) {

        NSRect parentRect = [self frame];

        parentRect.origin.x += (parentRect.size.width - [self.growBoxWindow frame].size.width);

        [self.growBoxWindow setFrameOrigin:parentRect.origin];

    }

}

- (void) _deliverMoveResizeEvent {

AWT_ASSERT_APPKIT_THREAD;

    // deliver the event if this is a user-initiated live resize or as a side-effect

    // of a Java initiated resize, because AppKit can override the bounds and force

    // the bounds of the window to avoid the Dock or remain on screen.

    [AWTToolkit eventCountPlusPlus];

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow == NULL) {

        // TODO: create generic AWT assert

    }

    [self adjustGrowBoxWindow];

    NSRect frame = ConvertNSScreenRect(env, [self frame]);

    static JNF_MEMBER_CACHE(jm_deliverMoveResizeEvent, jc_CPlatformWindow, "deliverMoveResizeEvent", "(IIII)V");

    JNFCallVoidMethod(env, platformWindow, jm_deliverMoveResizeEvent,

                      (jint)frame.origin.x,

                      (jint)frame.origin.y,

                      (jint)frame.size.width,

                      (jint)frame.size.height);

    (*env)->DeleteLocalRef(env, platformWindow);

}

- (void)windowDidMove:(NSNotification *)notification {

AWT_ASSERT_APPKIT_THREAD;

    [self _deliverMoveResizeEvent];

}

- (void)windowDidResize:(NSNotification *)notification {

AWT_ASSERT_APPKIT_THREAD;

    [self _deliverMoveResizeEvent];

}

- (void)windowDidExpose:(NSNotification *)notification {

AWT_ASSERT_APPKIT_THREAD;

    [AWTToolkit eventCountPlusPlus];

    // TODO: don't see this callback invoked anytime so we track

    // window exposing in _setVisible:(BOOL)

}

- (BOOL)windowShouldZoom:(NSWindow *)window toFrame:(NSRect)proposedFrame {

AWT_ASSERT_APPKIT_THREAD;

    [AWTToolkit eventCountPlusPlus];

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow != NULL) {

        static JNF_MEMBER_CACHE(jm_deliverZoom, jc_CPlatformWindow, "deliverZoom", "(Z)V");

        JNFCallVoidMethod(env, platformWindow, jm_deliverZoom, ![window isZoomed]);

        (*env)->DeleteLocalRef(env, platformWindow);

    }

    return YES;

}

- (void) _deliverIconify:(BOOL)iconify {

AWT_ASSERT_APPKIT_THREAD;

    [AWTToolkit eventCountPlusPlus];

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow != NULL) {

        static JNF_MEMBER_CACHE(jm_deliverIconify, jc_CPlatformWindow, "deliverIconify", "(Z)V");

        JNFCallVoidMethod(env, platformWindow, jm_deliverIconify, iconify);

        (*env)->DeleteLocalRef(env, platformWindow);

    }

}

- (void)windowDidMiniaturize:(NSNotification *)notification {

AWT_ASSERT_APPKIT_THREAD;

    [self _deliverIconify:JNI_TRUE];

}

- (void)windowDidDeminiaturize:(NSNotification *)notification {

AWT_ASSERT_APPKIT_THREAD;

    [self _deliverIconify:JNI_FALSE];

}

- (void) _deliverWindowFocusEvent:(BOOL)focused {

//AWT_ASSERT_APPKIT_THREAD;

    JNIEnv *env = [ThreadUtilities getJNIEnvUncached];

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow != NULL) {

        static JNF_MEMBER_CACHE(jm_deliverWindowFocusEvent, jc_CPlatformWindow, "deliverWindowFocusEvent", "(Z)V");

        JNFCallVoidMethod(env, platformWindow, jm_deliverWindowFocusEvent, (jboolean)focused);

        (*env)->DeleteLocalRef(env, platformWindow);

    }

}

- (void) windowDidBecomeKey: (NSNotification *) notification {

AWT_ASSERT_APPKIT_THREAD;

    [AWTToolkit eventCountPlusPlus];

    [CMenuBar activate:self.javaMenuBar modallyDisabled:NO];

    [self _deliverWindowFocusEvent:YES];

}

- (void) windowDidResignKey: (NSNotification *) notification {

    // TODO: check why sometimes at start is invoked *not* on AppKit main thread.

AWT_ASSERT_APPKIT_THREAD;

    [AWTToolkit eventCountPlusPlus];

    [self.javaMenuBar deactivate];

    [self _deliverWindowFocusEvent:NO];

}

- (void) windowDidBecomeMain: (NSNotification *) notification {

AWT_ASSERT_APPKIT_THREAD;

    [AWTToolkit eventCountPlusPlus];

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow != NULL) {

        static JNF_MEMBER_CACHE(jm_windowDidBecomeMain, jc_CPlatformWindow, "windowDidBecomeMain", "()V");

        JNFCallVoidMethod(env, platformWindow, jm_windowDidBecomeMain);

        (*env)->DeleteLocalRef(env, platformWindow);

    }

}

- (BOOL)windowShouldClose:(id)sender {

AWT_ASSERT_APPKIT_THREAD;

    [AWTToolkit eventCountPlusPlus];

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow != NULL) {

        static JNF_MEMBER_CACHE(jm_deliverWindowClosingEvent, jc_CPlatformWindow, "deliverWindowClosingEvent", "()V");

        JNFCallVoidMethod(env, platformWindow, jm_deliverWindowClosingEvent);

        (*env)->DeleteLocalRef(env, platformWindow);

    }

    // The window will be closed (if allowed) as result of sending Java event

    return NO;

}

- (void)_notifyFullScreenOp:(jint)op withEnv:(JNIEnv *)env {

    static JNF_CLASS_CACHE(jc_FullScreenHandler, "com/apple/eawt/FullScreenHandler");

    static JNF_STATIC_MEMBER_CACHE(jm_notifyFullScreenOperation, jc_FullScreenHandler, "handleFullScreenEventFromNative", "(Ljava/awt/Window;I)V");

    static JNF_MEMBER_CACHE(jf_target, jc_CPlatformWindow, "target", "Ljava/awt/Window;");

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow != NULL) {

        jobject awtWindow = JNFGetObjectField(env, platformWindow, jf_target);

        if (awtWindow != NULL) {

            JNFCallStaticVoidMethod(env, jm_notifyFullScreenOperation, awtWindow, op);

            (*env)->DeleteLocalRef(env, awtWindow);

        }

        (*env)->DeleteLocalRef(env, platformWindow);

    }

}

- (void)windowWillEnterFullScreen:(NSNotification *)notification {

    static JNF_MEMBER_CACHE(jm_windowWillEnterFullScreen, jc_CPlatformWindow, "windowWillEnterFullScreen", "()V");

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow != NULL) {

        JNFCallVoidMethod(env, platformWindow, jm_windowWillEnterFullScreen);

        [self _notifyFullScreenOp:com_apple_eawt_FullScreenHandler_FULLSCREEN_WILL_ENTER withEnv:env];

        (*env)->DeleteLocalRef(env, platformWindow);

    }

}

- (void)windowDidEnterFullScreen:(NSNotification *)notification {

    static JNF_MEMBER_CACHE(jm_windowDidEnterFullScreen, jc_CPlatformWindow, "windowDidEnterFullScreen", "()V");

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow != NULL) {

        JNFCallVoidMethod(env, platformWindow, jm_windowDidEnterFullScreen);

        [self _notifyFullScreenOp:com_apple_eawt_FullScreenHandler_FULLSCREEN_DID_ENTER withEnv:env];

        (*env)->DeleteLocalRef(env, platformWindow);

    }

}

- (void)windowWillExitFullScreen:(NSNotification *)notification {

    static JNF_MEMBER_CACHE(jm_windowWillExitFullScreen, jc_CPlatformWindow, "windowWillExitFullScreen", "()V");

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow != NULL) {

        JNFCallVoidMethod(env, platformWindow, jm_windowWillExitFullScreen);

        [self _notifyFullScreenOp:com_apple_eawt_FullScreenHandler_FULLSCREEN_WILL_EXIT withEnv:env];

        (*env)->DeleteLocalRef(env, platformWindow);

    }

}

- (void)windowDidExitFullScreen:(NSNotification *)notification {

    static JNF_MEMBER_CACHE(jm_windowDidExitFullScreen, jc_CPlatformWindow, "windowDidExitFullScreen", "()V");

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    jobject platformWindow = [self.javaPlatformWindow jObjectWithEnv:env];

    if (platformWindow != NULL) {

        JNFCallVoidMethod(env, platformWindow, jm_windowDidExitFullScreen);

        [self _notifyFullScreenOp:com_apple_eawt_FullScreenHandler_FULLSCREEN_DID_EXIT withEnv:env];