Create 1453 release branch for CEF1.

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/1453@1184 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

cef1/libcef/web_drag_source_mac.h

@@ -0,0 +1,91 @@
+// 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.
+
+#ifndef CEF_LIBCEF_WEB_DRAG_SOURCE_MAC_H_
+#define CEF_LIBCEF_WEB_DRAG_SOURCE_MAC_H_
+#pragma once
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/files/file_path.h"
+#include "base/memory/scoped_nsobject.h"
+#include "base/memory/scoped_ptr.h"
+#include "googleurl/src/gurl.h"
+#include "ui/gfx/native_widget_types.h"
+
+struct WebDropData;
+@class BrowserWebView;
+
+// A class that handles tracking and event processing for a drag and drop
+// originating from the content area.
+@interface WebDragSource : NSObject {
+ @private
+  // Our web view. Weak reference (owns or co-owns us).
+  BrowserWebView* view_;
+
+  // Our drop data. Should only be initialized once.
+  scoped_ptr<WebDropData> dropData_;
+
+  // The image to show as drag image. Can be nil.
+  scoped_nsobject<NSImage> dragImage_;
+
+  // The offset to draw |dragImage_| at.
+  NSPoint imageOffset_;
+
+  // Our pasteboard.
+  scoped_nsobject<NSPasteboard> pasteboard_;
+
+  // A mask of the allowed drag operations.
+  NSDragOperation dragOperationMask_;
+
+  // The file name to be saved to for a drag-out download.
+  base::FilePath downloadFileName_;
+
+  // The URL to download from for a drag-out download.
+  GURL downloadURL_;
+
+  // The file extension associated with the file drag, if any.
+  NSString* fileExtension_;
+}
+
+// Initialize a WebDragSource object for a drag (originating on the given
+// BrowserWebView and with the given dropData and pboard). Fill the pasteboard
+// with data types appropriate for dropData.
+- (id)initWithWebView:(BrowserWebView*)view
+             dropData:(const WebDropData*)dropData
+                image:(NSImage*)image
+               offset:(NSPoint)offset
+           pasteboard:(NSPasteboard*)pboard
+    dragOperationMask:(NSDragOperation)dragOperationMask;
+
+// Returns a mask of the allowed drag operations.
+- (NSDragOperation)draggingSourceOperationMaskForLocal:(BOOL)isLocal;
+
+// Call when asked to do a lazy write to the pasteboard; hook up to
+// -pasteboard:provideDataForType: (on the BrowserWebView).
+- (void)lazyWriteToPasteboard:(NSPasteboard*)pboard
+                      forType:(NSString*)type;
+
+// Start the drag (on the originally provided BrowserWebView); can do this right
+// after -initWithContentsView:....
+- (void)startDrag;
+
+// End the drag and clear the pasteboard; hook up to
+// -draggedImage:endedAt:operation:.
+- (void)endDragAt:(NSPoint)screenPoint
+        operation:(NSDragOperation)operation;
+
+// Drag moved; hook up to -draggedImage:movedTo:.
+- (void)moveDragTo:(NSPoint)screenPoint;
+
+// Call to drag a promised file to the given path (should be called before
+// -endDragAt:...); hook up to -namesOfPromisedFilesDroppedAtDestination:.
+// Returns the file name (not including path) of the file deposited (or which
+// will be deposited).
+- (NSString*)dragPromisedFileTo:(NSString*)path;
+
+@end
+
+#endif  // CEF_LIBCEF_WEB_DRAG_SOURCE_MAC_H_