59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
// Copyright (c) 2011 The Chromium Embedded Framework Authors.
|
|
// Portions copyright (c) 2010 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_WIN_H_
|
|
#define CEF_LIBCEF_WEB_DRAG_SOURCE_WIN_H_
|
|
#pragma once
|
|
|
|
#include "base/basictypes.h"
|
|
#include "ui/base/dragdrop/drag_source.h"
|
|
#include "ui/gfx/native_widget_types.h"
|
|
#include "ui/gfx/point.h"
|
|
|
|
namespace WebKit {
|
|
class WebView;
|
|
};
|
|
|
|
// An IDropSource implementation for a WebView. Handles notifications sent
|
|
// by an active drag-drop operation as the user mouses over other drop targets
|
|
// on their system. This object tells Windows whether or not the drag should
|
|
// continue, and supplies the appropriate cursors.
|
|
class WebDragSource : public ui::DragSource {
|
|
public:
|
|
// Create a new DragSource for a given HWND and WebView.
|
|
WebDragSource(gfx::NativeWindow source_wnd, WebKit::WebView* view);
|
|
virtual ~WebDragSource();
|
|
|
|
void set_effect(DWORD effect) { effect_ = effect; }
|
|
|
|
protected:
|
|
// ui::DragSource
|
|
virtual void OnDragSourceCancel();
|
|
virtual void OnDragSourceDrop();
|
|
virtual void OnDragSourceMove();
|
|
|
|
private:
|
|
// Cannot construct thusly.
|
|
WebDragSource();
|
|
|
|
// OnDragSourceDrop schedules its main work to be done after IDropTarget::Drop
|
|
// by posting a task to this function.
|
|
void DelayedOnDragSourceDrop();
|
|
|
|
// Keep a reference to the window so we can translate the cursor position.
|
|
gfx::NativeWindow source_wnd_;
|
|
|
|
// We use this as a channel to the web view to tell it about various drag
|
|
// drop events that it needs to know about (such as when a drag operation it
|
|
// initiated terminates).
|
|
WebKit::WebView* view_;
|
|
|
|
DWORD effect_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(WebDragSource);
|
|
};
|
|
|
|
#endif // CEF_LIBCEF_WEB_DRAG_SOURCE_WIN_H_
|