author | pchelko |
Thu, 09 Jan 2014 12:47:01 +0400 | |
changeset 23255 | ebd69e3d93c5 |
parent 16710 | f041f82cdeac |
child 23302 | e48db1c03189 |
permissions | -rw-r--r-- |
12047 | 1 |
/* |
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* Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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||
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//#define DND_DEBUG TRUE |
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#import "java_awt_dnd_DnDConstants.h" |
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#import <Cocoa/Cocoa.h> |
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#import <JavaNativeFoundation/JavaNativeFoundation.h> |
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#import "AWTEvent.h" |
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#import "AWTView.h" |
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#import "CDataTransferer.h" |
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#import "CDropTarget.h" |
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#import "CDragSource.h" |
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#import "DnDUtilities.h" |
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#import "ThreadUtilities.h" |
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// When sIsJavaDragging is true Java drag gesture has been recognized and a drag is/has been initialized. |
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// We must stop posting MouseEvent.MOUSE_DRAGGED events for the duration of the drag or all hell will break |
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// loose in shared code - tracking state going haywire. |
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static BOOL sIsJavaDragging; |
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||
47 |
||
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@interface NSEvent(AWTAdditions) |
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49 |
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+ (void)javaDraggingBegin; |
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+ (void)javaDraggingEnd; |
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||
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@end |
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@implementation NSEvent(AWTAdditions) |
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59 |
+ (void)javaDraggingBegin |
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{ |
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sIsJavaDragging = YES; |
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62 |
} |
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64 |
+ (void)javaDraggingEnd |
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{ |
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// sIsJavaDragging is reset on mouseDown as well. |
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sIsJavaDragging = NO; |
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} |
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@end |
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JNF_CLASS_CACHE(DataTransfererClass, "sun/awt/datatransfer/DataTransferer"); |
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JNF_CLASS_CACHE(CDragSourceContextPeerClass, "sun/lwawt/macosx/CDragSourceContextPeer"); |
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JNF_CLASS_CACHE(CImageClass, "sun/lwawt/macosx/CImage"); |
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static NSDragOperation sDragOperation; |
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static NSPoint sDraggingLocation; |
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static BOOL sNeedsEnter; |
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@interface CDragSource () |
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// Updates from the destination to the source |
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- (void) postDragEnter; |
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- (void) postDragExit; |
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// Utility |
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- (NSPoint) mapNSScreenPointToJavaWithOffset:(NSPoint) point; |
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@end |
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@implementation CDragSource |
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- (id) init:(jobject)jDragSourceContextPeer |
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component:(jobject)jComponent |
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control:(id)control |
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transferable:(jobject)jTransferable |
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triggerEvent:(jobject)jTrigger |
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dragPosX:(jint)dragPosX |
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dragPosY:(jint)dragPosY |
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modifiers:(jint)extModifiers |
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clickCount:(jint)clickCount |
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timeStamp:(jlong)timeStamp |
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dragImage:(jobject)jDragImage |
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dragImageOffsetX:(jint)jDragImageOffsetX |
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dragImageOffsetY:(jint)jDragImageOffsetY |
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sourceActions:(jint)jSourceActions |
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formats:(jlongArray)jFormats |
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formatMap:(jobject)jFormatMap |
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{ |
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self = [super init]; |
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DLog2(@"[CDragSource init]: %@\n", self); |
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fView = nil; |
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fComponent = nil; |
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113 |
// Construct the object if we have a valid model for it: |
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if (control != nil) { |
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JNIEnv *env = [ThreadUtilities getJNIEnv]; |
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fComponent = JNFNewGlobalRef(env, jComponent); |
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fDragSourceContextPeer = JNFNewGlobalRef(env, jDragSourceContextPeer); |
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fTransferable = JNFNewGlobalRef(env, jTransferable); |
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fTriggerEvent = JNFNewGlobalRef(env, jTrigger); |
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if (jDragImage) { |
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JNF_MEMBER_CACHE(nsImagePtr, CImageClass, "ptr", "J"); |
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jlong imgPtr = JNFGetLongField(env, jDragImage, nsImagePtr); |
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fDragImage = (NSImage*) jlong_to_ptr(imgPtr); // Double-casting prevents compiler 'd$|// |
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[fDragImage retain]; |
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} |
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fDragImageOffset = NSMakePoint(jDragImageOffsetX, jDragImageOffsetY); |
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fSourceActions = jSourceActions; |
133 |
fFormats = JNFNewGlobalRef(env, jFormats); |
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134 |
fFormatMap = JNFNewGlobalRef(env, jFormatMap); |
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136 |
fTriggerEventTimeStamp = timeStamp; |
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fDragPos = NSMakePoint(dragPosX, dragPosY); |
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fClickCount = clickCount; |
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fModifiers = extModifiers; |
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140 |
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// Set this object as a dragging source: |
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fView = [(AWTView *) control retain]; |
144 |
[fView setDragSource:self]; |
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// Let AWTEvent know Java drag is getting underway: |
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[NSEvent javaDraggingBegin]; |
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} |
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else { |
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[self release]; |
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self = nil; |
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} |
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return self; |
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} |
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- (void)removeFromView:(JNIEnv *)env |
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{ |
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DLog2(@"[CDragSource removeFromView]: %@\n", self); |
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162 |
// Remove this dragging source from the view: |
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[((AWTView *) fView) setDragSource:nil]; |
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// Clean up JNI refs |
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if (fComponent != NULL) { |
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JNFDeleteGlobalRef(env, fComponent); |
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fComponent = NULL; |
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} |
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171 |
if (fDragSourceContextPeer != NULL) { |
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172 |
JNFDeleteGlobalRef(env, fDragSourceContextPeer); |
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fDragSourceContextPeer = NULL; |
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174 |
} |
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175 |
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176 |
if (fTransferable != NULL) { |
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177 |
JNFDeleteGlobalRef(env, fTransferable); |
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fTransferable = NULL; |
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179 |
} |
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181 |
if (fTriggerEvent != NULL) { |
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JNFDeleteGlobalRef(env, fTriggerEvent); |
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fTriggerEvent = NULL; |
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184 |
} |
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185 |
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186 |
if (fFormats != NULL) { |
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187 |
JNFDeleteGlobalRef(env, fFormats); |
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fFormats = NULL; |
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189 |
} |
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190 |
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191 |
if (fFormatMap != NULL) { |
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192 |
JNFDeleteGlobalRef(env, fFormatMap); |
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fFormatMap = NULL; |
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194 |
} |
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195 |
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196 |
CFRelease(self); // GC |
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197 |
} |
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198 |
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199 |
- (void)dealloc |
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200 |
{ |
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201 |
DLog2(@"[CDragSource dealloc]: %@\n", self); |
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203 |
// Delete or release local data: |
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204 |
[fView release]; |
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fView = nil; |
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206 |
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207 |
[fDragImage release]; |
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fDragImage = nil; |
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209 |
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210 |
[super dealloc]; |
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211 |
} |
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212 |
//- (void)finalize { [super finalize]; } |
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213 |
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214 |
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215 |
// Appropriated from Windows' awt_DataTransferer.cpp: |
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216 |
// |
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217 |
// * NOTE: This returns a JNI Local Ref. Any code that calls must call DeleteLocalRef with the return value. |
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218 |
// |
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219 |
- (jobject)dataTransferer:(JNIEnv*)env |
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220 |
{ |
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221 |
JNF_STATIC_MEMBER_CACHE(getInstanceMethod, DataTransfererClass, "getInstance", "()Lsun/awt/datatransfer/DataTransferer;"); |
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return JNFCallStaticObjectMethod(env, getInstanceMethod); |
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223 |
} |
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224 |
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225 |
// Appropriated from Windows' awt_DataTransferer.cpp: |
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226 |
// |
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227 |
// * NOTE: This returns a JNI Local Ref. Any code that calls must call DeleteLocalRef with the return value. |
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228 |
// |
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229 |
- (jbyteArray)convertData:(jlong)format |
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230 |
{ |
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231 |
JNIEnv* env = [ThreadUtilities getJNIEnv]; |
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232 |
jobject transferer = [self dataTransferer:env]; |
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233 |
jbyteArray data = nil; |
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234 |
||
235 |
if (transferer != NULL) { |
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JNF_MEMBER_CACHE(convertDataMethod, DataTransfererClass, "convertData", "(Ljava/lang/Object;Ljava/awt/datatransfer/Transferable;JLjava/util/Map;Z)[B"); |
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237 |
data = JNFCallObjectMethod(env, transferer, convertDataMethod, fComponent, fTransferable, format, fFormatMap, (jboolean) TRUE); |
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238 |
} |
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239 |
||
240 |
return data; |
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241 |
} |
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242 |
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243 |
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// Encodes a byte array of zero-terminated filenames into an NSArray of NSStrings representing them. |
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// Borrowed and adapted from awt_DataTransferer.c, convertFileType(). |
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- (id)getFileList:(jbyte *)jbytes dataLength:(jsize)jbytesLength |
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247 |
{ |
|
248 |
jsize strings = 0; |
|
249 |
jsize i; |
|
250 |
||
251 |
// Get number of filenames while making sure to skip over empty strings. |
|
252 |
for (i = 1; i < jbytesLength; i++) { |
|
253 |
if (jbytes[i] == '\0' && jbytes[i - 1] != '\0') |
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254 |
strings++; |
|
255 |
} |
|
256 |
||
257 |
// Create the file list to return: |
|
258 |
NSMutableArray* fileList = [NSMutableArray arrayWithCapacity:strings]; |
|
259 |
||
260 |
for (i = 0; i < jbytesLength; i++) { |
|
261 |
char* start = (char *) &jbytes[i]; |
|
262 |
||
263 |
// Skip over empty strings: |
|
264 |
if (start[0] == '\0') { |
|
265 |
continue; |
|
266 |
} |
|
267 |
||
268 |
// Update the position marker: |
|
269 |
i += strlen(start); |
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270 |
||
271 |
// Add this filename to the file list: |
|
272 |
NSMutableString* fileName = [NSMutableString stringWithUTF8String:start]; |
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273 |
// Decompose the filename |
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274 |
CFStringNormalize((CFMutableStringRef)fileName, kCFStringNormalizationFormD); |
|
275 |
[fileList addObject:fileName]; |
|
276 |
} |
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277 |
||
278 |
// 03-01-09 Note: keep this around for debugging. |
|
279 |
// return [NSArray arrayWithObjects:@"/tmp/foo1", @"/tmp/foo2", nil]; |
|
280 |
||
281 |
return ([fileList count] > 0 ? fileList : nil); |
|
282 |
} |
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283 |
||
284 |
||
285 |
// Set up the pasteboard for dragging: |
|
286 |
- (BOOL)declareTypesToPasteboard:(NSPasteboard *)pb withEnv:(JNIEnv *) env { |
|
287 |
// 9-20-02 Note: leave this here for debugging: |
|
288 |
//[pb declareTypes: [NSArray arrayWithObject: NSStringPboardType] owner: self]; |
|
289 |
//return TRUE; |
|
290 |
||
291 |
// Get byte array elements: |
|
292 |
jboolean isCopy; |
|
293 |
jlong* jformats = (*env)->GetLongArrayElements(env, fFormats, &isCopy); |
|
294 |
if (jformats == nil) |
|
295 |
return FALSE; |
|
296 |
||
297 |
// Allocate storage arrays for dragging types to register with the pasteboard: |
|
298 |
jsize formatsLength = (*env)->GetArrayLength(env, fFormats); |
|
299 |
NSMutableArray* pbTypes = [[NSMutableArray alloc] initWithCapacity:formatsLength]; |
|
300 |
||
301 |
// And assume there are no NS-type data: [Radar 3065621] |
|
302 |
// This is to be able to drop transferables containing only a serialized object flavor, e.g.: |
|
303 |
// "JAVA_DATAFLAVOR:application/x-java-serialized-object; class=java.awt.Label". |
|
304 |
BOOL hasNSTypeData = false; |
|
305 |
||
306 |
// Collect all supported types in a pasteboard format into the storage arrays: |
|
307 |
jsize i; |
|
308 |
for (i = 0; i < formatsLength; i++) { |
|
309 |
jlong jformat = jformats[i]; |
|
310 |
||
311 |
if (jformat >= 0) { |
|
312 |
NSString* type = formatForIndex(jformat); |
|
313 |
||
314 |
// Add element type to the storage array. |
|
315 |
if (type != nil) { |
|
316 |
if ([type hasPrefix:@"JAVA_DATAFLAVOR:application/x-java-jvm-local-objectref;"] == false) { |
|
317 |
[pbTypes addObject:type]; |
|
318 |
||
319 |
// This is a good approximation if not perfect. A conclusive search would |
|
320 |
// have to be done matching all defined strings in AppKit's commonStrings.h. |
|
321 |
if ([type hasPrefix:@"NS"] || [type hasPrefix:@"NeXT"]) |
|
322 |
hasNSTypeData = true; |
|
323 |
} |
|
324 |
} |
|
325 |
} |
|
326 |
} |
|
327 |
||
328 |
// 1-16-03 Note: [Radar 3065621] |
|
329 |
// When TransferHandler is used with Swing components it puts only a type like this on the pasteboard: |
|
330 |
// "JAVA_DATAFLAVOR:application/x-java-jvm-local-objectref; class=java.lang.String" |
|
331 |
// And there's similar type for serialized object only transferables. |
|
332 |
// Since our drop targets aren't trained for arbitrary data types yet we need to fake an empty string |
|
333 |
// which will cause drop target handlers to fire. |
|
334 |
// KCH - 3550405 If the drag is between Swing components, formatsLength == 0, so expand the check. |
|
335 |
// Also, use a custom format rather than NSString, since that will prevent random views from accepting the drag |
|
336 |
if (hasNSTypeData == false && formatsLength >= 0) { |
|
337 |
[pbTypes addObject:[DnDUtilities javaPboardType]]; |
|
338 |
} |
|
339 |
||
340 |
(*env)->ReleaseLongArrayElements(env, fFormats, jformats, JNI_ABORT); |
|
341 |
||
342 |
// Declare pasteboard types. If the types array is empty we still want to declare them |
|
343 |
// as otherwise an old set of types/data would remain on the pasteboard. |
|
344 |
NSUInteger typesCount = [pbTypes count]; |
|
345 |
[pb declareTypes:pbTypes owner: self]; |
|
346 |
||
347 |
// KCH - Lame conversion bug between Cocoa and Carbon drag types |
|
348 |
// If I provide the filenames _right now_, NSFilenamesPboardType is properly converted to CoreDrag flavors |
|
349 |
// If I try to wait until pasteboard:provideDataForType:, the conversion won't happen |
|
350 |
// and pasteboard:provideDataForType: won't even get called! (unless I go over a Cocoa app) |
|
351 |
if ([pbTypes containsObject:NSFilenamesPboardType]) { |
|
352 |
[self pasteboard:pb provideDataForType:NSFilenamesPboardType]; |
|
353 |
} |
|
354 |
||
355 |
[pbTypes release]; |
|
356 |
||
357 |
return typesCount > 0 ? TRUE : FALSE; |
|
358 |
} |
|
359 |
||
360 |
// This is an NSPasteboard callback. In declareTypesToPasteboard:withEnv:, we only declared the types |
|
361 |
// When the AppKit DnD system actually needs the data, this method will be invoked. |
|
362 |
// Note that if the transfer is handled entirely from Swing (as in a local-vm drag), this method may never be called. |
|
363 |
- (void)pasteboard:(NSPasteboard *)pb provideDataForType:(NSString *)type { |
|
364 |
AWT_ASSERT_APPKIT_THREAD; |
|
365 |
||
366 |
// 9-20-02 Note: leave this here for debugging: |
|
367 |
//[pb setString: @"Hello, World!" forType: NSStringPboardType]; |
|
368 |
// return; |
|
369 |
||
370 |
// Set up Java environment: |
|
371 |
JNIEnv* env = [ThreadUtilities getJNIEnv]; |
|
372 |
||
373 |
id pbData = nil; |
|
374 |
||
375 |
// Collect data in a pasteboard format: |
|
376 |
jlong jformat = indexForFormat(type); |
|
377 |
if (jformat >= 0) { |
|
378 |
// Convert DataTransfer data to a Java byte array: |
|
379 |
// Note that this will eventually call getTransferData() |
|
380 |
jbyteArray jdata = [self convertData:jformat]; |
|
381 |
||
382 |
if (jdata != nil) { |
|
383 |
jboolean isCopy; |
|
384 |
jsize jdataLength = (*env)->GetArrayLength(env, jdata); |
|
385 |
jbyte* jbytedata = (*env)->GetByteArrayElements(env, jdata, &isCopy); |
|
386 |
||
387 |
if (jdataLength > 0 && jbytedata != nil) { |
|
388 |
// Get element data to the storage array. For NSFilenamesPboardType type we use |
|
389 |
// an NSArray-type data - NSData-type data would cause a crash. |
|
390 |
if (type != nil) { |
|
391 |
pbData = ([type isEqualTo:NSFilenamesPboardType]) ? |
|
392 |
[self getFileList:jbytedata dataLength:jdataLength] : |
|
393 |
[NSData dataWithBytes:jbytedata length:jdataLength]; |
|
394 |
} |
|
395 |
} |
|
396 |
||
397 |
(*env)->ReleaseByteArrayElements(env, jdata, jbytedata, JNI_ABORT); |
|
398 |
||
399 |
(*env)->DeleteLocalRef(env, jdata); |
|
400 |
} |
|
401 |
} |
|
402 |
||
403 |
// If we are the custom type that matches local-vm drags, set an empty NSData |
|
404 |
if ( (pbData == nil) && ([type isEqualTo:[DnDUtilities javaPboardType]]) ) { |
|
405 |
pbData = [NSData dataWithBytes:"" length:1]; |
|
406 |
} |
|
407 |
||
408 |
// Add pasteboard data for the type: |
|
409 |
// Remember, NSFilenamesPboardType's data is NSArray (property list), not NSData! |
|
410 |
// We must use proper pb accessor depending on the data type. |
|
411 |
if ([pbData isKindOfClass:[NSArray class]]) |
|
412 |
[pb setPropertyList:pbData forType:type]; |
|
413 |
else |
|
414 |
[pb setData:pbData forType:type]; |
|
415 |
} |
|
416 |
||
417 |
||
418 |
- (void)validateDragImage |
|
419 |
{ |
|
420 |
// Make a small blank image if we don't have a drag image: |
|
421 |
if (fDragImage == nil) { |
|
422 |
// 9-30-02 Note: keep this around for debugging: |
|
423 |
fDragImage = [[NSImage alloc] initWithSize:NSMakeSize(21, 21)]; |
|
424 |
NSSize imageSize = [fDragImage size]; |
|
425 |
||
426 |
NSBitmapImageRep *imageRep = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:NULL |
|
427 |
pixelsWide:imageSize.width pixelsHigh:imageSize.height bitsPerSample:8 samplesPerPixel:4 |
|
428 |
hasAlpha:YES isPlanar:NO colorSpaceName:NSCalibratedRGBColorSpace bytesPerRow:0 bitsPerPixel:32]; |
|
429 |
||
430 |
[fDragImage addRepresentation:imageRep]; |
|
431 |
fDragImageOffset = NSMakePoint(0, 0); |
|
432 |
||
433 |
[imageRep release]; |
|
434 |
} |
|
435 |
} |
|
436 |
||
437 |
- (NSEvent*)nsDragEvent:(BOOL)isDrag |
|
438 |
{ |
|
439 |
// Get NSView for the drag source: |
|
440 |
NSWindow* window = [fView window]; |
|
441 |
||
442 |
NSInteger windowNumber = [window windowNumber]; |
|
443 |
NSGraphicsContext* graphicsContext = [NSGraphicsContext graphicsContextWithWindow:window]; |
|
444 |
||
445 |
// Convert mouse coordinates to NS: |
|
15507
9472e3b6d1d4
8005405: [macosx] Drag and Drop: wrong animation when dropped outside any drop target.
pchelko
parents:
13781
diff
changeset
|
446 |
NSPoint eventLocation = [fView convertPoint:NSMakePoint(fDragPos.x, fDragPos.y) toView:nil]; |
9472e3b6d1d4
8005405: [macosx] Drag and Drop: wrong animation when dropped outside any drop target.
pchelko
parents:
13781
diff
changeset
|
447 |
eventLocation.y = [[fView window] frame].size.height - eventLocation.y; |
9472e3b6d1d4
8005405: [macosx] Drag and Drop: wrong animation when dropped outside any drop target.
pchelko
parents:
13781
diff
changeset
|
448 |
|
12047 | 449 |
// Convert fTriggerEventTimeStamp to NS - AWTEvent.h defines UTC(nsEvent) as ((jlong)[event timestamp] * 1000): |
450 |
NSTimeInterval timeStamp = fTriggerEventTimeStamp / 1000; |
|
451 |
||
452 |
// Convert fModifiers (extModifiers) to NS: |
|
453 |
NSEventType mouseButtons = 0; |
|
454 |
float pressure = 0.0; |
|
455 |
if (isDrag) { |
|
456 |
mouseButtons = (NSEventType) [DnDUtilities mapJavaExtModifiersToNSMouseDownButtons:fModifiers]; |
|
457 |
pressure = 1.0; |
|
458 |
} else { |
|
459 |
mouseButtons = (NSEventType) [DnDUtilities mapJavaExtModifiersToNSMouseUpButtons:fModifiers]; |
|
460 |
} |
|
461 |
||
462 |
// Convert fModifiers (extModifiers) to NS: |
|
13781
bf3d53b1fba7
7160951: ActionListener called twice for JMenuItem using ScreenMenuBar
leonidr
parents:
12808
diff
changeset
|
463 |
NSUInteger modifiers = JavaModifiersToNsKeyModifiers(fModifiers, TRUE); |
12047 | 464 |
|
465 |
// Just a dummy value ... |
|
466 |
NSInteger eventNumber = 0; |
|
467 |
||
468 |
// Make a native autoreleased dragging event: |
|
469 |
NSEvent* dragEvent = [NSEvent mouseEventWithType:mouseButtons location:eventLocation |
|
470 |
modifierFlags:modifiers timestamp:timeStamp windowNumber:windowNumber context:graphicsContext |
|
471 |
eventNumber:eventNumber clickCount:fClickCount pressure:pressure]; |
|
472 |
||
473 |
return dragEvent; |
|
474 |
} |
|
475 |
||
476 |
- (void)doDrag |
|
477 |
{ |
|
478 |
AWT_ASSERT_APPKIT_THREAD; |
|
479 |
||
480 |
DLog2(@"[CDragSource doDrag]: %@\n", self); |
|
481 |
||
482 |
// Set up Java environment: |
|
483 |
JNIEnv *env = [ThreadUtilities getJNIEnv]; |
|
484 |
||
485 |
// Set up the pasteboard: |
|
486 |
NSPasteboard *pb = [NSPasteboard pasteboardWithName: NSDragPboard]; |
|
487 |
[self declareTypesToPasteboard:pb withEnv:env]; |
|
488 |
||
489 |
// Make a native autoreleased NS dragging event: |
|
490 |
NSEvent *dragEvent = [self nsDragEvent:YES]; |
|
491 |
||
492 |
// Get NSView for the drag source: |
|
493 |
NSView *view = fView; |
|
494 |
||
495 |
// Make sure we have a valid drag image: |
|
496 |
[self validateDragImage]; |
|
497 |
NSImage* dragImage = fDragImage; |
|
498 |
||
499 |
// Get drag origin and offset: |
|
15507
9472e3b6d1d4
8005405: [macosx] Drag and Drop: wrong animation when dropped outside any drop target.
pchelko
parents:
13781
diff
changeset
|
500 |
NSPoint dragOrigin = [dragEvent locationInWindow]; |
12047 | 501 |
dragOrigin.x += fDragImageOffset.x; |
15507
9472e3b6d1d4
8005405: [macosx] Drag and Drop: wrong animation when dropped outside any drop target.
pchelko
parents:
13781
diff
changeset
|
502 |
dragOrigin.y -= fDragImageOffset.y + [dragImage size].height; |
12047 | 503 |
|
504 |
// Drag offset values don't seem to matter: |
|
505 |
NSSize dragOffset = NSMakeSize(0, 0); |
|
506 |
||
507 |
// These variables should be set based on the transferable: |
|
508 |
BOOL isFileDrag = FALSE; |
|
509 |
BOOL fileDragPromises = FALSE; |
|
510 |
||
511 |
DLog(@"[CDragSource drag]: calling dragImage/File:"); |
|
512 |
DLog3(@" - drag origin: %f, %f", fDragPos.x, fDragPos.y); |
|
513 |
DLog5(@" - drag image: %f, %f (%f x %f)", fDragImageOffset.x, fDragImageOffset.y, [dragImage size].width, [dragImage size].height); |
|
514 |
DLog3(@" - event point (window) %f, %f", [dragEvent locationInWindow].x, [dragEvent locationInWindow].y); |
|
515 |
DLog3(@" - drag point (view) %f, %f", dragOrigin.x, dragOrigin.y); |
|
516 |
// Set up the fDragKeyModifier, so we know if the operation has changed |
|
517 |
// Set up the fDragMouseModifier, so we can |= it later (since CoreDrag doesn't tell us mouse states during a drag) |
|
518 |
fDragKeyModifiers = [DnDUtilities extractJavaExtKeyModifiersFromJavaExtModifiers:fModifiers]; |
|
519 |
fDragMouseModifiers = [DnDUtilities extractJavaExtMouseModifiersFromJavaExtModifiers:fModifiers]; |
|
520 |
||
521 |
sNeedsEnter = YES; |
|
522 |
||
523 |
@try { |
|
524 |
// Data dragging: |
|
525 |
if (isFileDrag == FALSE) { |
|
526 |
[view dragImage:dragImage at:dragOrigin offset:dragOffset event:dragEvent pasteboard:pb source:view slideBack:YES]; |
|
527 |
} else if (fileDragPromises == FALSE) { |
|
528 |
// File dragging: |
|
529 |
NSLog(@"[CDragSource drag]: file dragging is unsupported."); |
|
530 |
NSString* fileName = nil; // This should be set based on the transferable. |
|
531 |
NSRect fileLocationRect = NSMakeRect(0, 0, 0, 0); // This should be set based on the filename. |
|
532 |
||
533 |
BOOL success = [view dragFile:fileName fromRect:fileLocationRect slideBack:YES event:dragEvent]; |
|
534 |
if (success == TRUE) { // One would erase dragged file if this was a move operation. |
|
535 |
} |
|
536 |
} else { |
|
537 |
// Promised file dragging: |
|
538 |
NSLog(@"[CDragSource drag]: file dragging promises are unsupported."); |
|
539 |
NSArray* fileTypesArray = nil; // This should be set based on the transferable. |
|
540 |
NSRect fileLocationRect = NSMakeRect(0, 0, 0, 0); // This should be set based on all filenames. |
|
541 |
||
542 |
BOOL success = [view dragPromisedFilesOfTypes:fileTypesArray fromRect:fileLocationRect source:view slideBack:YES event:dragEvent]; |
|
543 |
if (success == TRUE) { // One would write out the promised files here. |
|
544 |
} |
|
545 |
} |
|
546 |
||
547 |
NSPoint point = [self mapNSScreenPointToJavaWithOffset:sDraggingLocation]; |
|
548 |
||
549 |
// Convert drag operation to Java: |
|
550 |
jint dragOp = [DnDUtilities mapNSDragOperationToJava:sDragOperation]; |
|
551 |
||
552 |
// Drag success must acount for DragOperationNone: |
|
553 |
jboolean success = (dragOp != java_awt_dnd_DnDConstants_ACTION_NONE); |
|
554 |
||
555 |
// We have a problem here... we don't send DragSource dragEnter/Exit messages outside of our own process |
|
556 |
// because we don't get anything from AppKit/CoreDrag |
|
557 |
// This means that if you drag outside of the app and drop, even if it's valid, a dragDropFinished is posted without dragEnter |
|
558 |
// I'm worried that this might confuse Java, so we're going to send a "bogus" dragEnter if necessary (only if the drag succeeded) |
|
559 |
if (success && sNeedsEnter) { |
|
560 |
[self postDragEnter]; |
|
561 |
} |
|
562 |
||
563 |
// DragSourceContextPeer.dragDropFinished() should be called even if there was an error: |
|
564 |
JNF_MEMBER_CACHE(dragDropFinishedMethod, CDragSourceContextPeerClass, "dragDropFinished", "(ZIII)V"); |
|
565 |
DLog3(@" -> posting dragDropFinished, point %f, %f", point.x, point.y); |
|
566 |
JNFCallVoidMethod(env, fDragSourceContextPeer, dragDropFinishedMethod, success, dragOp, (jint) point.x, (jint) point.y); // AWT_THREADING Safe (event) |
|
567 |
JNF_MEMBER_CACHE(resetHoveringMethod, CDragSourceContextPeerClass, "resetHovering", "()V"); |
|
568 |
JNFCallVoidMethod(env, fDragSourceContextPeer, resetHoveringMethod); // Hust reset static variable |
|
569 |
} @finally { |
|
570 |
sNeedsEnter = NO; |
|
571 |
} |
|
572 |
||
573 |
// We have to do this, otherwise AppKit doesn't know we're finished dragging. Yup, it's that bad. |
|
574 |
if ([[[NSRunLoop currentRunLoop] currentMode] isEqualTo:NSEventTrackingRunLoopMode]) { |
|
575 |
[NSApp postEvent:[self nsDragEvent:NO] atStart:YES]; |
|
576 |
} |
|
577 |
||
578 |
DLog2(@"[CDragSource doDrag] end: %@\n", self); |
|
579 |
} |
|
580 |
||
581 |
- (void)drag |
|
582 |
{ |
|
583 |
AWT_ASSERT_NOT_APPKIT_THREAD; |
|
584 |
||
585 |
[self performSelectorOnMainThread:@selector(doDrag) withObject:nil waitUntilDone:YES]; // AWT_THREADING Safe (called from unique asynchronous thread) |
|
586 |
} |
|
587 |
||
588 |
/******************************** BEGIN NSDraggingSource Interface ********************************/ |
|
589 |
||
590 |
- (void)draggingOperationChanged:(NSDragOperation)dragOp { |
|
591 |
//DLog2(@"[CDragSource draggingOperationChanged]: %@\n", self); |
|
592 |
||
593 |
JNIEnv* env = [ThreadUtilities getJNIEnv]; |
|
594 |
||
595 |
jint targetActions = fSourceActions; |
|
596 |
if ([CDropTarget currentDropTarget]) targetActions = [[CDropTarget currentDropTarget] currentJavaActions]; |
|
597 |
||
598 |
NSPoint point = [self mapNSScreenPointToJavaWithOffset:sDraggingLocation]; |
|
599 |
DLog3(@" -> posting operationChanged, point %f, %f", point.x, point.y); |
|
600 |
jint modifiedModifiers = fDragKeyModifiers | fDragMouseModifiers | [DnDUtilities javaKeyModifiersForNSDragOperation:dragOp]; |
|
601 |
||
602 |
JNF_MEMBER_CACHE(operationChangedMethod, CDragSourceContextPeerClass, "operationChanged", "(IIII)V"); |
|
603 |
JNFCallVoidMethod(env, fDragSourceContextPeer, operationChangedMethod, targetActions, modifiedModifiers, (jint) point.x, (jint) point.y); // AWT_THREADING Safe (event) |
|
604 |
} |
|
605 |
||
606 |
- (NSDragOperation)draggingSourceOperationMaskForLocal:(BOOL)localDrag { |
|
607 |
//DLog2(@"[CDragSource draggingSourceOperationMaskForLocal]: %@\n", self); |
|
608 |
return [DnDUtilities mapJavaDragOperationToNS:fSourceActions]; |
|
609 |
} |
|
610 |
||
611 |
/* 9-16-02 Note: we don't support promises yet. |
|
612 |
- (NSArray *)namesOfPromisedFilesDroppedAtDestination:(NSURL *)dropDestination { |
|
613 |
}*/ |
|
614 |
||
615 |
- (void)draggedImage:(NSImage *)image beganAt:(NSPoint)screenPoint { |
|
616 |
DLog4(@"[CDragSource draggedImage beganAt]: (%f, %f) %@\n", screenPoint.x, screenPoint.y, self); |
|
617 |
||
618 |
// Initialize static variables: |
|
619 |
sDragOperation = NSDragOperationNone; |
|
620 |
sDraggingLocation = screenPoint; |
|
621 |
} |
|
622 |
||
623 |
- (void)draggedImage:(NSImage *)image endedAt:(NSPoint)screenPoint operation:(NSDragOperation)operation { |
|
624 |
DLog4(@"[CDragSource draggedImage endedAt:]: (%f, %f) %@\n", screenPoint.x, screenPoint.y, self); |
|
625 |
||
626 |
sDraggingLocation = screenPoint; |
|
627 |
sDragOperation = operation; |
|
628 |
} |
|
629 |
||
630 |
- (void)draggedImage:(NSImage *)image movedTo:(NSPoint)screenPoint { |
|
631 |
//DLog4(@"[CDragSource draggedImage moved]: (%d, %d) %@\n", (int) screenPoint.x, (int) screenPoint.y, self); |
|
632 |
JNIEnv* env = [ThreadUtilities getJNIEnv]; |
|
633 |
||
634 |
JNF_COCOA_ENTER(env); |
|
635 |
// There are two things we would be interested in: |
|
636 |
// a) mouse pointer has moved |
|
637 |
// b) drag actions (key modifiers) have changed |
|
638 |
||
639 |
BOOL notifyJava = FALSE; |
|
640 |
||
641 |
// a) mouse pointer has moved: |
|
642 |
if (NSEqualPoints(screenPoint, sDraggingLocation) == FALSE) { |
|
643 |
//DLog2(@"[CDragSource draggedImage:movedTo]: mouse moved, %@\n", self); |
|
644 |
notifyJava = TRUE; |
|
645 |
} |
|
646 |
||
647 |
// b) drag actions (key modifiers) have changed: |
|
13781
bf3d53b1fba7
7160951: ActionListener called twice for JMenuItem using ScreenMenuBar
leonidr
parents:
12808
diff
changeset
|
648 |
jint modifiers = NsKeyModifiersToJavaModifiers([NSEvent modifierFlags], YES); |
12047 | 649 |
if (fDragKeyModifiers != modifiers) { |
650 |
NSDragOperation currentOp = [DnDUtilities nsDragOperationForModifiers:[NSEvent modifierFlags]]; |
|
651 |
NSDragOperation allowedOp = [DnDUtilities mapJavaDragOperationToNS:fSourceActions] & currentOp; |
|
652 |
||
653 |
fDragKeyModifiers = modifiers; |
|
654 |
||
655 |
if (sDragOperation != allowedOp) { |
|
656 |
sDragOperation = allowedOp; |
|
657 |
[self draggingOperationChanged:allowedOp]; |
|
658 |
} |
|
659 |
} |
|
660 |
||
661 |
// Should we notify Java things have changed? |
|
662 |
if (notifyJava) { |
|
663 |
sDraggingLocation = screenPoint; |
|
664 |
||
665 |
NSPoint point = [self mapNSScreenPointToJavaWithOffset:screenPoint]; |
|
666 |
||
667 |
jint targetActions = fSourceActions; |
|
668 |
if ([CDropTarget currentDropTarget]) targetActions = [[CDropTarget currentDropTarget] currentJavaActions]; |
|
669 |
||
670 |
// Motion: dragMotion, dragMouseMoved |
|
671 |
DLog4(@"[CDragSource draggedImage moved]: (%f, %f) %@\n", screenPoint.x, screenPoint.y, self); |
|
672 |
||
673 |
DLog3(@" -> posting dragMotion, point %f, %f", point.x, point.y); |
|
674 |
JNF_MEMBER_CACHE(dragMotionMethod, CDragSourceContextPeerClass, "dragMotion", "(IIII)V"); |
|
675 |
JNFCallVoidMethod(env, fDragSourceContextPeer, dragMotionMethod, targetActions, (jint) fModifiers, (jint) point.x, (jint) point.y); // AWT_THREADING Safe (event) |
|
676 |
||
677 |
DLog3(@" -> posting dragMouseMoved, point %f, %f", point.x, point.y); |
|
678 |
JNF_MEMBER_CACHE(dragMouseMovedMethod, CDragSourceContextPeerClass, "dragMouseMoved", "(IIII)V"); |
|
679 |
JNFCallVoidMethod(env, fDragSourceContextPeer, dragMouseMovedMethod, targetActions, (jint) fModifiers, (jint) point.x, (jint) point.y); // AWT_THREADING Safe (event) |
|
680 |
} |
|
681 |
JNF_COCOA_EXIT(env); |
|
682 |
} |
|
683 |
||
684 |
- (BOOL)ignoreModifierKeysWhileDragging { |
|
685 |
//DLog2(@"[CDragSource ignoreModifierKeysWhileDragging]: %@\n", self); |
|
686 |
return NO; |
|
687 |
} |
|
688 |
||
689 |
/******************************** END NSDraggingSource Interface ********************************/ |
|
690 |
||
691 |
||
692 |
// postDragEnter and postDragExit are called from CDropTarget when possible and appropriate |
|
693 |
// Currently only possible if source and target are in the same process |
|
694 |
- (void) postDragEnter { |
|
695 |
JNIEnv *env = [ThreadUtilities getJNIEnv]; |
|
696 |
sNeedsEnter = NO; |
|
697 |
||
698 |
jint targetActions = fSourceActions; |
|
699 |
if ([CDropTarget currentDropTarget]) targetActions = [[CDropTarget currentDropTarget] currentJavaActions]; |
|
700 |
||
701 |
NSPoint point = [self mapNSScreenPointToJavaWithOffset:sDraggingLocation]; |
|
702 |
DLog3(@" -> posting dragEnter, point %f, %f", point.x, point.y); |
|
703 |
JNF_MEMBER_CACHE(dragEnterMethod, CDragSourceContextPeerClass, "dragEnter", "(IIII)V"); |
|
704 |
JNFCallVoidMethod(env, fDragSourceContextPeer, dragEnterMethod, targetActions, (jint) fModifiers, (jint) point.x, (jint) point.y); // AWT_THREADING Safe (event) |
|
705 |
} |
|
706 |
||
707 |
- (void) postDragExit { |
|
708 |
JNIEnv *env = [ThreadUtilities getJNIEnv]; |
|
709 |
sNeedsEnter = YES; |
|
710 |
||
711 |
NSPoint point = [self mapNSScreenPointToJavaWithOffset:sDraggingLocation]; |
|
712 |
DLog3(@" -> posting dragExit, point %f, %f", point.x, point.y); |
|
713 |
JNF_MEMBER_CACHE(dragExitMethod, CDragSourceContextPeerClass, "dragExit", "(II)V"); |
|
714 |
JNFCallVoidMethod(env, fDragSourceContextPeer, dragExitMethod, (jint) point.x, (jint) point.y); // AWT_THREADING Safe (event) |
|
715 |
} |
|
716 |
||
717 |
||
718 |
// Java assumes that the origin is the top-left corner of the screen. |
|
719 |
// Cocoa assumes that the origin is the bottom-left corner of the screen. |
|
720 |
// Adjust the y coordinate to account for this. |
|
721 |
// NOTE: Also need to take into account the 0 screen relative screen coords. |
|
722 |
// This is because all screen coords in Cocoa are relative to the 0 screen. |
|
723 |
// Also see +[CWindow convertAWTToCocoaScreenRect] |
|
724 |
// NSScreen-to-JavaScreen mapping: |
|
725 |
- (NSPoint) mapNSScreenPointToJavaWithOffset:(NSPoint)screenPoint { |
|
726 |
NSRect mainR = [[[NSScreen screens] objectAtIndex:0] frame]; |
|
727 |
NSPoint point = NSMakePoint(screenPoint.x, mainR.size.height - (screenPoint.y)); |
|
728 |
||
729 |
// Adjust the point with the drag image offset to get the real mouse hotspot: |
|
730 |
// The point should remain in screen coordinates (as per DragSourceEvent.getLocation() documentation) |
|
731 |
point.x -= fDragImageOffset.x; |
|
732 |
point.y -= ([fDragImage size].height + fDragImageOffset.y); |
|
733 |
||
734 |
return point; |
|
735 |
} |
|
736 |
||
737 |
@end |