1 /*
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include "sun_lwawt_macosx_CCursorManager.h"
27
28 #include <Cocoa/Cocoa.h>
29 #include <JavaNativeFoundation/JavaNativeFoundation.h>
30
31 #include "GeomUtilities.h"
32 #include "ThreadUtilities.h"
33
34 #include "java_awt_Cursor.h"
35
36
37 static SEL lookupCursorSelectorForType(jint type) {
38 switch (type) {
39 case java_awt_Cursor_DEFAULT_CURSOR: return @selector(arrowCursor);
40 case java_awt_Cursor_CROSSHAIR_CURSOR: return @selector(crosshairCursor);
41 case java_awt_Cursor_TEXT_CURSOR: return @selector(IBeamCursor);
42 case java_awt_Cursor_WAIT_CURSOR: return @selector(javaBusyButClickableCursor);
43 case java_awt_Cursor_SW_RESIZE_CURSOR: return @selector(javaResizeSWCursor);
44 case java_awt_Cursor_SE_RESIZE_CURSOR: return @selector(javaResizeSECursor);
45 case java_awt_Cursor_NW_RESIZE_CURSOR: return @selector(javaResizeNWCursor);
46 case java_awt_Cursor_NE_RESIZE_CURSOR: return @selector(javaResizeNECursor);
47 case java_awt_Cursor_N_RESIZE_CURSOR: return @selector(resizeUpDownCursor);
48 case java_awt_Cursor_S_RESIZE_CURSOR: return @selector(resizeUpDownCursor);
49 case java_awt_Cursor_W_RESIZE_CURSOR: return @selector(resizeLeftRightCursor);
50 case java_awt_Cursor_E_RESIZE_CURSOR: return @selector(resizeLeftRightCursor);
51 case java_awt_Cursor_HAND_CURSOR: return @selector(pointingHandCursor);
52 case java_awt_Cursor_MOVE_CURSOR: return @selector(javaMoveCursor);
53 }
54
55 return nil;
56 }
57
58 static SEL lookupCursorSelectorForName(NSString *name) {
59 if ([@"DnD.Cursor.CopyDrop" isEqual:name]) return @selector(dragCopyCursor);
60 if ([@"DnD.Cursor.LinkDrop" isEqual:name]) return @selector(dragLinkCursor);
61 if ([@"DnD.Cursor.MoveDrop" isEqual:name]) return @selector(_genericDragCursor);
62 if ([@"DnD.Cursor.CopyNoDrop" isEqual:name]) return @selector(operationNotAllowedCursor);
63 if ([@"DnD.Cursor.LinkNoDrop" isEqual:name]) return @selector(operationNotAllowedCursor);
64 if ([@"DnD.Cursor.MoveNoDrop" isEqual:name]) return @selector(operationNotAllowedCursor);
65 return nil;
66 }
67
68 static void setCursorOnAppKitThread(NSCursor *cursor) {
69 [cursor set];
70 }
71
72 JNIEXPORT void JNICALL
73 Java_sun_lwawt_macosx_CCursorManager_nativeSetBuiltInCursor
74 (JNIEnv *env, jclass class, jint type, jstring name)
75 {
76 JNF_COCOA_ENTER(env);
77 AWT_ASSERT_NOT_APPKIT_THREAD;
78
79 NSString *cursorName = JNFJavaToNSString(env, name);
80 SEL cursorSelector = (type == sun_lwawt_macosx_CCursorManager_NAMED_CURSOR) ? lookupCursorSelectorForName(cursorName) : lookupCursorSelectorForType(type);
81 if (cursorSelector == nil) {
82 NSString *reason = [NSString stringWithFormat:@"unimplemented built-in cursor type: %d / %@", type, cursorName];
83 [JNFException raise:env as:kIllegalArgumentException reason:[reason UTF8String]];
84 }
85
86 if (![[NSCursor class] respondsToSelector:cursorSelector]) {
87 [JNFException raise:env as:kNoSuchMethodException reason:"missing NSCursor selector"];
88 }
89
90 [JNFRunLoop performOnMainThreadWaiting:NO withBlock:^(){
91 AWT_ASSERT_APPKIT_THREAD;
92
93 setCursorOnAppKitThread([[NSCursor class] performSelector:cursorSelector]);
94 }];
95
96 JNF_COCOA_EXIT(env);
97 }
98
99 JNIEXPORT void JNICALL
100 Java_sun_lwawt_macosx_CCursorManager_nativeSetCustomCursor
101 (JNIEnv *env, jclass class, jlong imgPtr, jdouble x, jdouble y)
102 {
103 JNF_COCOA_ENTER(env);
104 AWT_ASSERT_NOT_APPKIT_THREAD;
105 NSImage *image = (NSImage *)jlong_to_ptr(imgPtr);
106
107 [JNFRunLoop performOnMainThreadWaiting:NO withBlock:^(){
108 AWT_ASSERT_APPKIT_THREAD;
109
110 NSCursor *cursor = [[NSCursor alloc] initWithImage:image
111 hotSpot:(NSPoint){ x, y }];
112 setCursorOnAppKitThread(cursor);
113 [cursor release];
114 }];
115
116 JNF_COCOA_EXIT(env);
117 }
118
119 JNIEXPORT jobject JNICALL
120 Java_sun_lwawt_macosx_CCursorManager_nativeGetCursorPosition
121 (JNIEnv *env, jclass class)
122 {
123 jobject jpt = NULL;
124
125 JNF_COCOA_ENTER(env);
126 AWT_ASSERT_NOT_APPKIT_THREAD;
127
128 __block NSPoint pt = NSZeroPoint;
129 [JNFRunLoop performOnMainThreadWaiting:YES withBlock:^(){
130 AWT_ASSERT_APPKIT_THREAD;
131
132 pt = ConvertNSScreenPoint(env, [NSEvent mouseLocation]);
133 }];
134 jpt = NSToJavaPoint(env, pt);
135
136 JNF_COCOA_EXIT(env);
137
138 return jpt;
139 }
140
141
142 JNIEXPORT void JNICALL
143 Java_sun_lwawt_macosx_CCursorManager_nativeSetAllowsCursorSetInBackground
144 (JNIEnv *env, jclass class, jboolean allows)
145 {
146
147 JNF_COCOA_ENTER(env);
148 AWT_ASSERT_NOT_APPKIT_THREAD;
149
150 SEL allowsSetInBackground_SEL = @selector(javaSetAllowsCursorSetInBackground:);
151 if ([[NSCursor class] respondsToSelector:allowsSetInBackground_SEL]) {
152 [JNFRunLoop performOnMainThreadWaiting:YES withBlock:^(){
153 NSMethodSignature *allowsSetInBackground_sig =
154 [[NSCursor class] methodSignatureForSelector:allowsSetInBackground_SEL];
155 NSInvocation *invocation =
156 [NSInvocation invocationWithMethodSignature:allowsSetInBackground_sig];
157 BOOL arg = (BOOL)allows;
158 [invocation setSelector:allowsSetInBackground_SEL];
159 [invocation setArgument:&arg atIndex:2];
160 [invocation invokeWithTarget:[NSCursor class]];
161 }];
162 }
163
164 JNF_COCOA_EXIT(env);
165
166 }