/*

 * Copyright (c) 2011, 2015, 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.

 */

#include "sun_lwawt_macosx_CCursorManager.h"

#include <Cocoa/Cocoa.h>

#include <JavaNativeFoundation/JavaNativeFoundation.h>

#include "GeomUtilities.h"

#include "ThreadUtilities.h"

#include "java_awt_Cursor.h"

static SEL lookupCursorSelectorForType(jint type) {

    switch (type) {

        case java_awt_Cursor_DEFAULT_CURSOR:        return @selector(arrowCursor);

        case java_awt_Cursor_CROSSHAIR_CURSOR:      return @selector(crosshairCursor);

        case java_awt_Cursor_TEXT_CURSOR:           return @selector(IBeamCursor);

        case java_awt_Cursor_WAIT_CURSOR:           return @selector(javaBusyButClickableCursor);

        case java_awt_Cursor_SW_RESIZE_CURSOR:      return @selector(javaResizeSWCursor);

        case java_awt_Cursor_SE_RESIZE_CURSOR:      return @selector(javaResizeSECursor);

        case java_awt_Cursor_NW_RESIZE_CURSOR:      return @selector(javaResizeNWCursor);

        case java_awt_Cursor_NE_RESIZE_CURSOR:      return @selector(javaResizeNECursor);

        case java_awt_Cursor_N_RESIZE_CURSOR:       return @selector(resizeUpDownCursor);

        case java_awt_Cursor_S_RESIZE_CURSOR:       return @selector(resizeUpDownCursor);

        case java_awt_Cursor_W_RESIZE_CURSOR:       return @selector(resizeLeftRightCursor);

        case java_awt_Cursor_E_RESIZE_CURSOR:       return @selector(resizeLeftRightCursor);

        case java_awt_Cursor_HAND_CURSOR:           return @selector(pointingHandCursor);

        case java_awt_Cursor_MOVE_CURSOR:           return @selector(javaMoveCursor);

    }

    return nil;

}

static SEL lookupCursorSelectorForName(NSString *name) {

    if ([@"DnD.Cursor.CopyDrop" isEqual:name]) return @selector(dragCopyCursor);

    if ([@"DnD.Cursor.LinkDrop" isEqual:name]) return @selector(dragLinkCursor);

    if ([@"DnD.Cursor.MoveDrop" isEqual:name]) return @selector(_genericDragCursor);

    if ([@"DnD.Cursor.CopyNoDrop" isEqual:name]) return @selector(operationNotAllowedCursor);

    if ([@"DnD.Cursor.LinkNoDrop" isEqual:name]) return @selector(operationNotAllowedCursor);

    if ([@"DnD.Cursor.MoveNoDrop" isEqual:name]) return @selector(operationNotAllowedCursor);

    return nil;

}

static void setCursorOnAppKitThread(NSCursor *cursor) {

    [cursor set];

}

JNIEXPORT void JNICALL

Java_sun_lwawt_macosx_CCursorManager_nativeSetBuiltInCursor

(JNIEnv *env, jclass class, jint type, jstring name)

{

JNF_COCOA_ENTER(env);

    NSString *cursorName = JNFJavaToNSString(env, name);

    SEL cursorSelector = (type == sun_lwawt_macosx_CCursorManager_NAMED_CURSOR) ? lookupCursorSelectorForName(cursorName) : lookupCursorSelectorForType(type);

    if (cursorSelector == nil) {

        NSString *reason = [NSString stringWithFormat:@"unimplemented built-in cursor type: %d / %@", type, cursorName];

        [JNFException raise:env as:kIllegalArgumentException reason:[reason UTF8String]];

    }

    if (![[NSCursor class] respondsToSelector:cursorSelector]) {

        [JNFException raise:env as:kNoSuchMethodException reason:"missing NSCursor selector"];

    }

    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){

        setCursorOnAppKitThread([[NSCursor class] performSelector:cursorSelector]);

    }];

JNF_COCOA_EXIT(env);

}

JNIEXPORT void JNICALL

Java_sun_lwawt_macosx_CCursorManager_nativeSetCustomCursor

(JNIEnv *env, jclass class, jlong imgPtr, jdouble x, jdouble y)

{

JNF_COCOA_ENTER(env);

    NSImage *image = (NSImage *)jlong_to_ptr(imgPtr);

    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){

        NSCursor *cursor = [[NSCursor alloc] initWithImage:image

                                                   hotSpot:(NSPoint){ x, y }];

        setCursorOnAppKitThread(cursor);

        [cursor release];

    }];

JNF_COCOA_EXIT(env);

}

JNIEXPORT jobject JNICALL

Java_sun_lwawt_macosx_CCursorManager_nativeGetCursorPosition

(JNIEnv *env, jclass class)

{

    jobject jpt = NULL;

JNF_COCOA_ENTER(env);

    CGEventRef event = CGEventCreate(NULL);

    CGPoint globalPos = CGEventGetLocation(event);

    CFRelease(event);

    jpt = NSToJavaPoint(env, globalPos);

JNF_COCOA_EXIT(env);

    return jpt;

}

JNIEXPORT void JNICALL

Java_sun_lwawt_macosx_CCursorManager_nativeSetAllowsCursorSetInBackground

(JNIEnv *env, jclass class, jboolean allows)

{

JNF_COCOA_ENTER(env);

    SEL allowsSetInBackground_SEL = @selector(javaSetAllowsCursorSetInBackground:);

    if ([[NSCursor class] respondsToSelector:allowsSetInBackground_SEL]) {

        [ThreadUtilities performOnMainThreadWaiting:YES block:^(){

            NSMethodSignature *allowsSetInBackground_sig =

                [[NSCursor class] methodSignatureForSelector:allowsSetInBackground_SEL];

            NSInvocation *invocation =

                [NSInvocation invocationWithMethodSignature:allowsSetInBackground_sig];

            BOOL arg = (BOOL)allows;

            [invocation setSelector:allowsSetInBackground_SEL];

            [invocation setArgument:&arg atIndex:2];

            [invocation invokeWithTarget:[NSCursor class]];

        }];

    }

JNF_COCOA_EXIT(env);

}