1ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen// Copyright (c) 2011 The Chromium Authors. All rights reserved. 2c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// found in the LICENSE file. 4c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 5c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#ifndef CHROME_BROWSER_TAB_CONTENTS_WEB_DROP_TARGET_WIN_H_ 6c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#define CHROME_BROWSER_TAB_CONTENTS_WEB_DROP_TARGET_WIN_H_ 73345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick#pragma once 8c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 9ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen#include "base/memory/scoped_ptr.h" 1072a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen#include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h" 1172a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen#include "ui/base/dragdrop/drop_target.h" 12c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 13c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochclass InterstitialDropTarget; 14c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochclass RenderViewHost; 15c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochclass TabContents; 16c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 17731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick// A helper object that provides drop capabilities to a TabContents. The 18731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick// DropTarget handles drags that enter the region of the TabContents by 19731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick// passing on the events to the renderer. 2072a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsenclass WebDropTarget : public ui::DropTarget { 21c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch public: 22c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Create a new WebDropTarget associating it with the given HWND and 23c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // TabContents. 24c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch WebDropTarget(HWND source_hwnd, TabContents* contents); 25c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch virtual ~WebDropTarget(); 26c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 27c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch void set_drag_cursor(WebKit::WebDragOperation op) { 28c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch drag_cursor_ = op; 29c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 30c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 31c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch protected: 32c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch virtual DWORD OnDragEnter(IDataObject* data_object, 33c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DWORD key_state, 34c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch POINT cursor_position, 35c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DWORD effect); 36c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 37c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch virtual DWORD OnDragOver(IDataObject* data_object, 38c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DWORD key_state, 39c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch POINT cursor_position, 40c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DWORD effect); 41c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 42c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch virtual void OnDragLeave(IDataObject* data_object); 43c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 44c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch virtual DWORD OnDrop(IDataObject* data_object, 45c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DWORD key_state, 46c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch POINT cursor_position, 47c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DWORD effect); 48c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 49c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch private: 50c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Our associated TabContents. 51c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch TabContents* tab_contents_; 52c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 53c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // We keep track of the render view host we're dragging over. If it changes 54c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // during a drag, we need to re-send the DragEnter message. WARNING: 55c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // this pointer should never be dereferenced. We only use it for comparing 56c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // pointers. 57c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch RenderViewHost* current_rvh_; 58c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 59c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Used to determine what cursor we should display when dragging over web 60c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // content area. This can be updated async during a drag operation. 61c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch WebKit::WebDragOperation drag_cursor_; 62c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 63c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // A special drop target handler for when we try to d&d while an interstitial 64c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // page is showing. 65c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch scoped_ptr<InterstitialDropTarget> interstitial_drop_target_; 66c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 67c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DISALLOW_COPY_AND_ASSIGN(WebDropTarget); 68c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch}; 69c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 70c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#endif // CHROME_BROWSER_TAB_CONTENTS_WEB_DROP_TARGET_WIN_H_ 71