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diff --git a/frontends/cocoa/Tree.h b/frontends/cocoa/Tree.h
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+/*
+ * Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com>
+ *
+ * This file is part of NetSurf, http://www.netsurf-browser.org/
+ *
+ * NetSurf is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * NetSurf 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#import <Cocoa/Cocoa.h>
+
+#import "cocoa/desktop-tree.h"
+
+@class Tree;
+
+@protocol TreeDelegate
+
+- (void)tree:(Tree *)tree requestedRedrawInRect:(NSRect)rect;
+- (void)tree:(Tree *)tree resized:(NSSize)size;
+- (void)tree:(Tree *)tree scrollPoint:(NSPoint)point;
+- (NSSize)treeWindowSize:(Tree *)tree;
+
+@end
+
+@interface Tree : NSObject
+
+@property (weak, nonatomic) id<TreeDelegate> delegate;
+@property (readonly) struct tree *tree;
+
+- (instancetype)initWithFlags:(unsigned int)flags;
+
+- (void)setRedrawing:(BOOL)newRedrawing;
+
+@end
+
+@interface Tree (ViewInterface)
+
+- (void)drawRect:(NSRect)rect inView:(NSView *)view;
+- (void)mouseAction:(browser_mouse_state)state atPoint:(NSPoint)point;
+- (void)mouseDragEnd:(browser_mouse_state)state fromPoint:(NSPoint)p0 toPoint:(NSPoint)p1;
+- (void)keyPress:(uint32_t)key;
+
+@end