2 * Copyright (C) 2005, 2006 Apple Computer, Inc. All rights reserved.
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29 #import <AppKit/AppKit.h>
31 #define WebDragImageAlpha 0.75f
37 @interface NSView (WebExtras)
39 // Returns the nearest enclosing view of the given class, or nil if none.
40 - (NSView *)_web_superviewOfClass:(Class)viewClass;
41 - (WebFrameView *)_web_parentWebFrameView;
42 - (WebView *)_webView;
44 // returns whether a drag should begin starting with mouseDownEvent; if the time
45 // passes expiration or the mouse moves less than the hysteresis before the mouseUp event,
46 // returns NO, else returns YES.
47 - (BOOL)_web_dragShouldBeginFromMouseDown:(NSEvent *)mouseDownEvent
48 withExpiration:(NSDate *)expiration
49 xHysteresis:(float)xHysteresis
50 yHysteresis:(float)yHysteresis;
52 // Calls _web_dragShouldBeginFromMouseDown:withExpiration:xHysteresis:yHysteresis: with
53 // the default values for xHysteresis and yHysteresis
54 - (BOOL)_web_dragShouldBeginFromMouseDown:(NSEvent *)mouseDownEvent
55 withExpiration:(NSDate *)expiration;
57 // Convenience method. Returns NSDragOperationCopy if _web_bestURLFromPasteboard doesn't return nil.
58 // Returns NSDragOperationNone otherwise.
59 - (NSDragOperation)_web_dragOperationForDraggingInfo:(id <NSDraggingInfo>)sender;
61 // Resizes and applies alpha to image and drags it.
62 - (void)_web_DragImageForElement:(DOMElement *)element
64 event:(NSEvent *)event
65 pasteboard:(NSPasteboard *)pasteboard
67 offset:(NSPoint *)dragImageOffset;
69 - (BOOL)_web_firstResponderIsSelfOrDescendantView;
71 - (NSRect)_web_convertRect:(NSRect)aRect toView:(NSView *)aView;