/*

 * Copyright (c) 2011, 2014, 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 <AppKit/AppKit.h>

#import <JavaNativeFoundation/JavaNativeFoundation.h>

#import "jni_util.h"

#import "CTrayIcon.h"

#import "ThreadUtilities.h"

#include "GeomUtilities.h"

#import "LWCToolkit.h"

#define kImageInset 4.0

/**

 * If the image of the specified size won't fit into the status bar,

 * then scale it down proprtionally. Otherwise, leave it as is.

 */

static NSSize ScaledImageSizeForStatusBar(NSSize imageSize) {

    NSRect imageRect = NSMakeRect(0.0, 0.0, imageSize.width, imageSize.height);

    // There is a black line at the bottom of the status bar

    // that we don't want to cover with image pixels.

    CGFloat desiredHeight = [[NSStatusBar systemStatusBar] thickness] - 1.0;

    CGFloat scaleFactor = MIN(1.0, desiredHeight/imageSize.height);

    imageRect.size.width *= scaleFactor;

    imageRect.size.height *= scaleFactor;

    imageRect = NSIntegralRect(imageRect);

    return imageRect.size;

}

@implementation AWTTrayIcon

- (id) initWithPeer:(jobject)thePeer {

    if (!(self = [super init])) return nil;

    peer = thePeer;

    theItem = [[NSStatusBar systemStatusBar] statusItemWithLength:NSVariableStatusItemLength];

    [theItem retain];

    view = [[AWTTrayIconView alloc] initWithTrayIcon:self];

    [theItem setView:view];

    return self;

}

-(void) dealloc {

    JNIEnv *env = [ThreadUtilities getJNIEnvUncached];

    JNFDeleteGlobalRef(env, peer);

    [[NSStatusBar systemStatusBar] removeStatusItem: theItem];

    // Its a bad idea to force the item to release our view by setting

    // the item's view to nil: it can lead to a crash in some scenarios.

    // The item will release the view later on, so just set the view's image

    // and tray icon to nil since we are done with it.

    [view setImage: nil];

    [view setTrayIcon: nil];

    [view release];

    [theItem release];

    [super dealloc];

}

- (void) setTooltip:(NSString *) tooltip{

    [view setToolTip:tooltip];

}

-(NSStatusItem *) theItem{

    return theItem;

}

- (jobject) peer{

    return peer;

}

- (void) setImage:(NSImage *) imagePtr sizing:(BOOL)autosize{

    NSSize imageSize = [imagePtr size];

    NSSize scaledSize = ScaledImageSizeForStatusBar(imageSize);

    if (imageSize.width != scaledSize.width ||

        imageSize.height != scaledSize.height) {

        [imagePtr setSize: scaledSize];

    }

    CGFloat itemLength = scaledSize.width + 2.0*kImageInset;

    [theItem setLength:itemLength];

    [view setImage:imagePtr];

}

- (NSPoint) getLocationOnScreen {

    return [[view window] convertBaseToScreen: NSZeroPoint];

}

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

    [AWTToolkit eventCountPlusPlus];

    JNIEnv *env = [ThreadUtilities getJNIEnv];

    NSPoint eventLocation = [event locationInWindow];

    NSPoint localPoint = [view convertPoint: eventLocation fromView: nil];

    localPoint.y = [view bounds].size.height - localPoint.y;

    NSPoint absP = [NSEvent mouseLocation];

    NSEventType type = [event type];

    NSRect screenRect = [[NSScreen mainScreen] frame];

    absP.y = screenRect.size.height - absP.y;

    jint clickCount;

    clickCount = [event clickCount];

    static JNF_CLASS_CACHE(jc_NSEvent, "sun/lwawt/macosx/NSEvent");

    static JNF_CTOR_CACHE(jctor_NSEvent, jc_NSEvent, "(IIIIIIIIDD)V");

    jobject jEvent = JNFNewObject(env, jctor_NSEvent,

                                  [event type],

                                  [event modifierFlags],

                                  clickCount,

                                  [event buttonNumber],

                                  (jint)localPoint.x, (jint)localPoint.y,

                                  (jint)absP.x, (jint)absP.y,

                                  [event deltaY],

                                  [event deltaX]);

    CHECK_NULL(jEvent);

    static JNF_CLASS_CACHE(jc_TrayIcon, "sun/lwawt/macosx/CTrayIcon");

    static JNF_MEMBER_CACHE(jm_handleMouseEvent, jc_TrayIcon, "handleMouseEvent", "(Lsun/lwawt/macosx/NSEvent;)V");

    JNFCallVoidMethod(env, peer, jm_handleMouseEvent, jEvent);

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

}

@end //AWTTrayIcon

//================================================

@implementation AWTTrayIconView

-(id)initWithTrayIcon:(AWTTrayIcon *)theTrayIcon {

    self = [super initWithFrame:NSMakeRect(0, 0, 1, 1)];

    [self setTrayIcon: theTrayIcon];

    isHighlighted = NO;

    image = nil;

    return self;

}

-(void) dealloc {

    [image release];

    [super dealloc];

}

- (void)setHighlighted:(BOOL)aFlag

{

    if (isHighlighted != aFlag) {

        isHighlighted = aFlag;

        [self setNeedsDisplay:YES];

    }

}

- (void)setImage:(NSImage*)anImage {

    [anImage retain];

    [image release];

    image = anImage;

    if (image != nil) {

        [self setNeedsDisplay:YES];

    }

}

-(void)setTrayIcon:(AWTTrayIcon*)theTrayIcon {

    trayIcon = theTrayIcon;

}

- (void)menuWillOpen:(NSMenu *)menu

{

    [self setHighlighted:YES];

}

- (void)menuDidClose:(NSMenu *)menu

{

    [menu setDelegate:nil];

    [self setHighlighted:NO];

}

- (void)drawRect:(NSRect)dirtyRect

{

    if (image == nil) {

        return;

    }

    NSRect bounds = [self bounds];

    NSSize imageSize = [image size];

    NSRect drawRect = {{ (bounds.size.width - imageSize.width) / 2.0,

        (bounds.size.height - imageSize.height) / 2.0 }, imageSize};

    // don't cover bottom pixels of the status bar with the image

    if (drawRect.origin.y < 1.0) {

        drawRect.origin.y = 1.0;

    }

    drawRect = NSIntegralRect(drawRect);

    [trayIcon.theItem drawStatusBarBackgroundInRect:bounds

                                withHighlight:isHighlighted];

    [image drawInRect:drawRect

             fromRect:NSZeroRect

            operation:NSCompositeSourceOver

             fraction:1.0

     ];

}

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

    [trayIcon deliverJavaMouseEvent: event];

    // don't show the menu on ctrl+click: it triggers ACTION event, like right click

    if (([event modifierFlags] & NSControlKeyMask) == 0) {

        //find CTrayIcon.getPopupMenuModel method and call it to get popup menu ptr.

        JNIEnv *env = [ThreadUtilities getJNIEnv];

        static JNF_CLASS_CACHE(jc_CTrayIcon, "sun/lwawt/macosx/CTrayIcon");

        static JNF_MEMBER_CACHE(jm_getPopupMenuModel, jc_CTrayIcon, "getPopupMenuModel", "()J");

        jlong res = JNFCallLongMethod(env, trayIcon.peer, jm_getPopupMenuModel);

        if (res != 0) {

            CPopupMenu *cmenu = jlong_to_ptr(res);

            NSMenu* menu = [cmenu menu];

            [menu setDelegate:self];

            [trayIcon.theItem popUpStatusItemMenu:menu];

            [self setNeedsDisplay:YES];

        }

    }

}

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

    [trayIcon deliverJavaMouseEvent: event];

}

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

    [trayIcon deliverJavaMouseEvent: event];

}

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

    [trayIcon deliverJavaMouseEvent: event];

}

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

    [trayIcon deliverJavaMouseEvent: event];

}

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

    [trayIcon deliverJavaMouseEvent: event];

}

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

    [trayIcon deliverJavaMouseEvent: event];

}

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

    [trayIcon deliverJavaMouseEvent: event];

}

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

    [trayIcon deliverJavaMouseEvent: event];

}

@end //AWTTrayIconView

//================================================

/*

 * Class:     sun_lwawt_macosx_CTrayIcon

 * Method:    nativeCreate

 * Signature: ()J

 */

JNIEXPORT jlong JNICALL Java_sun_lwawt_macosx_CTrayIcon_nativeCreate

(JNIEnv *env, jobject peer) {

    __block AWTTrayIcon *trayIcon = nil;

JNF_COCOA_ENTER(env);

    jobject thePeer = JNFNewGlobalRef(env, peer);

    [ThreadUtilities performOnMainThreadWaiting:YES block:^(){

        trayIcon = [[AWTTrayIcon alloc] initWithPeer:thePeer];

    }];

JNF_COCOA_EXIT(env);

    return ptr_to_jlong(trayIcon);

}

/*

 * Class: java_awt_TrayIcon

 * Method: initIDs

 * Signature: ()V

 */

JNIEXPORT void JNICALL Java_java_awt_TrayIcon_initIDs

(JNIEnv *env, jclass cls) {

    //Do nothing.

}

/*

 * Class:     sun_lwawt_macosx_CTrayIcon

 * Method:    nativeSetToolTip

 * Signature: (JLjava/lang/String;)V

 */

JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CTrayIcon_nativeSetToolTip

(JNIEnv *env, jobject self, jlong model, jstring jtooltip) {

JNF_COCOA_ENTER(env);

    AWTTrayIcon *icon = jlong_to_ptr(model);

    NSString *tooltip = JNFJavaToNSString(env, jtooltip);

    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){

        [icon setTooltip:tooltip];

    }];

JNF_COCOA_EXIT(env);

}

/*

 * Class:     sun_lwawt_macosx_CTrayIcon

 * Method:    setNativeImage

 * Signature: (JJZ)V

 */

JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CTrayIcon_setNativeImage

(JNIEnv *env, jobject self, jlong model, jlong imagePtr, jboolean autosize) {

JNF_COCOA_ENTER(env);

    AWTTrayIcon *icon = jlong_to_ptr(model);

    [ThreadUtilities performOnMainThreadWaiting:YES block:^(){

        [icon setImage:jlong_to_ptr(imagePtr) sizing:autosize];

    }];

JNF_COCOA_EXIT(env);

}

JNIEXPORT jobject JNICALL

Java_sun_lwawt_macosx_CTrayIcon_nativeGetIconLocation

(JNIEnv *env, jobject self, jlong model) {

    jobject jpt = NULL;

JNF_COCOA_ENTER(env);

    __block NSPoint pt = NSZeroPoint;

    AWTTrayIcon *icon = jlong_to_ptr(model);

    [ThreadUtilities performOnMainThreadWaiting:YES block:^(){

        NSPoint loc = [icon getLocationOnScreen];

        pt = ConvertNSScreenPoint(env, loc);

    }];

    jpt = NSToJavaPoint(env, pt);

JNF_COCOA_EXIT(env);

    return jpt;

}