1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_BASE_COCOA_BASE_VIEW_H_ 6 #define UI_BASE_COCOA_BASE_VIEW_H_ 7 8 #import <Cocoa/Cocoa.h> 9 10 #include "base/mac/scoped_nsobject.h" 11 #import "ui/base/cocoa/tracking_area.h" 12 #include "ui/base/ui_base_export.h" 13 #include "ui/gfx/rect.h" 14 15 // A view that provides common functionality that many views will need: 16 // - Automatic registration for mouse-moved events. 17 // - Funneling of mouse and key events to two methods 18 // - Coordinate conversion utilities 19 UI_BASE_EXPORT 20 @interface BaseView : NSView { 21 @public 22 enum EventHandled { 23 kEventNotHandled, 24 kEventHandled 25 }; 26 27 @private 28 ui::ScopedCrTrackingArea trackingArea_; 29 BOOL dragging_; 30 base::scoped_nsobject<NSEvent> pendingExitEvent_; 31 } 32 33 // Override these methods (mouseEvent, keyEvent) in a subclass. 34 - (void)mouseEvent:(NSEvent *)theEvent; 35 36 // keyEvent should return kEventHandled if it handled the event, or 37 // kEventNotHandled if it should be forwarded to BaseView's super class. 38 - (EventHandled)keyEvent:(NSEvent *)theEvent; 39 40 // Useful rect conversions (doing coordinate flipping) 41 - (gfx::Rect)flipNSRectToRect:(NSRect)rect; 42 - (NSRect)flipRectToNSRect:(gfx::Rect)rect; 43 44 @end 45 46 // A notification that a view may issue when it receives first responder status. 47 // The name is |kViewDidBecomeFirstResponder|, the object is the view, and the 48 // NSSelectionDirection is wrapped in an NSNumber under the key 49 // |kSelectionDirection|. 50 UI_BASE_EXPORT extern NSString* kViewDidBecomeFirstResponder; 51 UI_BASE_EXPORT extern NSString* kSelectionDirection; 52 53 #endif // UI_BASE_COCOA_BASE_VIEW_H_ 54
