cocoa_window: fix mouse dissapearing after drop and on resize

src/cocoa_window.m

@@ -390,6 +390,8 @@ static int translateKey(unsigned int key)
 @interface GLFWContentView : NSView
 {
     _GLFWwindow* window;
+    char * fileNamesForDrag;
+    int fileNamesSize;
     NSTrackingArea* trackingArea;
 }
 
@@ -421,10 +423,13 @@ static int translateKey(unsigned int key)
         window = initWindow;
         trackingArea = nil;
         
+        fileNamesForDrag = (char*)malloc(1024);
+        fileNamesSize = 1024;
+        
         [self updateTrackingAreas];
         
         
-        [self registerForDraggedTypes:[NSArray arrayWithObjects:NSTIFFPboardType,
+        [self registerForDraggedTypes:[NSArray arrayWithObjects:
                                        NSFilenamesPboardType, nil]];
     }
 
@@ -434,6 +439,7 @@ static int translateKey(unsigned int key)
 -(void)dealloc
 {
     [trackingArea release];
+    free(fileNamesForDrag);
     [super dealloc];
 }
 
@@ -617,80 +623,71 @@ static int translateKey(unsigned int key)
         _glfwInputScroll(window, deltaX, deltaY);
 }
 
-- (void)resetCursorRects
+
+// arturoc: this makes the cursor dissapear when the window is
+// resized or received a drag operation
+/*- (void)resetCursorRects
 {
     [self discardCursorRects];
     [self addCursorRect:[self bounds] cursor:_glfw.ns.cursor];
-}
+}*/
 
 - (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
 {
     if ((NSDragOperationGeneric & [sender draggingSourceOperationMask]) 
 		== NSDragOperationGeneric) {
         
+		[self setNeedsDisplay:YES];
+        
         return NSDragOperationGeneric;
 		
-    } // end if
+    }
     
-    // not a drag we can use
 	return NSDragOperationNone;	
-	
-} // end draggingEntered
+}
 
 - (BOOL)prepareForDragOperation:(id <NSDraggingInfo>)sender {
     [self setNeedsDisplay:YES];
     return YES;
-} // end prepareForDragOperation
-
-
-
+}
 
 - (BOOL)performDragOperation:(id <NSDraggingInfo>)sender {
-    
-	//int i;
-	int count;
 	NSPasteboard *zPasteboard = [sender draggingPasteboard];
 	NSArray *files = [zPasteboard propertyListForType:NSFilenamesPboardType];
 	
-	// define the images  types we accept
-	// NSPasteboardTypeTIFF: (used to be NSTIFFPboardType).
-	// NSFilenamesPboardType:An array of NSString filenames
-	
-    char fileNames[100*1000];
-	memset(fileNames, 0, 100*1000);
+    // set the first char to 0 so strcat
+    // starts to add from the beginning
+	fileNamesForDrag[0] = 0;
 
 	int dragX = [sender draggingLocation].x;
 	int dragY = [sender draggingLocation].y;
 	
-	count = 0;
+	int dragSize = 1;
 	if ([files count]) {
 		NSEnumerator *filenameEnum = [files objectEnumerator]; 
         NSString *name;
 		while (name = [filenameEnum nextObject]) {
-			if (count < 100){
-				if (strlen([name UTF8String]) < MAXPATHLEN){
-					strcat(fileNames, [name UTF8String]);
-                    strcat(fileNames, "\n");
-					count++;
-				}
-			}
-			
+            dragSize += [name length]+1;
+			if (dragSize > fileNamesSize){
+                fileNamesSize *= 2;
+                fileNamesForDrag = realloc(fileNamesForDrag, fileNamesSize);
+            }
+            strcat(fileNamesForDrag, [name UTF8String]);
+            strcat(fileNamesForDrag, "\n");
 		}
 	}
 	
     int height;
 	_glfwPlatformGetWindowSize(window, NULL, &height);
     _glfwInputCursorMotion(window, dragX,  height-dragY);
-    _glfwInputDrop(window, fileNames);
+    _glfwInputDrop(window, fileNamesForDrag);
     
-	//NSLog(@"Got a drag!");
 	return YES;
-	
-} // end performDragOperation
-
+}
 
 - (void)concludeDragOperation:(id <NSDraggingInfo>)sender {
-} // end concludeDragOperation
+    [self setNeedsDisplay:YES];
+}
 
 @end