cef/libcef/web_drop_target_mac.h

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// Copyright (c) 2011 The Chromium Embedded Framework Authors.
// Portions copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import <Cocoa/Cocoa.h>
#include "base/string16.h"
class GURL;
struct WebDropData;
@class BrowserWebView;
class WebViewHost;
// A class that handles tracking and event processing for a drag and drop
// over the content area. Assumes something else initiates the drag, this is
// only for processing during a drag.
@interface WebDropTarget : NSObject {
@private
// Our associated WebView. Weak reference.
BrowserWebView* view_;
// Keep track of the WebViewHost we're dragging over. If it changes during a
// drag, we need to re-send the DragEnter message.
WebViewHost* current_wvh_;
// True if the drag has been canceled.
bool canceled_;
}
// |view| is the WebView representing this browser window, used to communicate
// drag&drop messages to WebCore and handle navigation on a successful drop
// (if necessary).
- (id)initWithWebView:(BrowserWebView*)view;
// Messages to send during the tracking of a drag, ususally upon receiving
// calls from the view system. Communicates the drag messages to WebCore.
- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)info
view:(NSView*)view;
- (void)draggingExited:(id<NSDraggingInfo>)info;
- (NSDragOperation)draggingUpdated:(id<NSDraggingInfo>)info
view:(NSView*)view;
- (BOOL)performDragOperation:(id<NSDraggingInfo>)info
view:(NSView*)view;
@end
// Public use only for unit tests.
@interface WebDropTarget(Testing)
// Given |data|, which should not be nil, fill it in using the contents of the
// given pasteboard.
- (void)populateWebDropData:(WebDropData*)data
fromPasteboard:(NSPasteboard*)pboard;
// Given a point in window coordinates and a view in that window, return a
// flipped point in the coordinate system of |view|.
- (NSPoint)flipWindowPointToView:(const NSPoint&)windowPoint
view:(NSView*)view;
// Given a point in window coordinates and a view in that window, return a
// flipped point in screen coordinates.
- (NSPoint)flipWindowPointToScreen:(const NSPoint&)windowPoint
view:(NSView*)view;
@end