// Copyright (c) 2008 The Chromium Embedded Framework Authors.
// Portions copyright (c) 2006-2008 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.

#include "precompiled_libcef.h"
#include "browser_drop_delegate.h"

#include "webkit/glue/webdropdata.h"
#include "webkit/glue/webview.h"

// BaseDropTarget methods ----------------------------------------------------
DWORD BrowserDropDelegate::OnDragEnter(IDataObject* data_object,
                                    DWORD key_state,
                                    POINT cursor_position,
                                    DWORD effect) {
  WebDropData drop_data;
  WebDropData::PopulateWebDropData(data_object, &drop_data);

  POINT client_pt = cursor_position;
  ScreenToClient(GetHWND(), &client_pt);
  bool valid = webview_->DragTargetDragEnter(drop_data, client_pt.x,
      client_pt.y, cursor_position.x, cursor_position.y);
  return valid ? DROPEFFECT_COPY : DROPEFFECT_NONE;
}

DWORD BrowserDropDelegate::OnDragOver(IDataObject* data_object,
                                   DWORD key_state,
                                   POINT cursor_position,
                                   DWORD effect) {
  POINT client_pt = cursor_position;
  ScreenToClient(GetHWND(), &client_pt);
  bool valid = webview_->DragTargetDragOver(client_pt.x,
      client_pt.y, cursor_position.x, cursor_position.y);
  return valid ? DROPEFFECT_COPY : DROPEFFECT_NONE;
}

void BrowserDropDelegate::OnDragLeave(IDataObject* data_object) {
  webview_->DragTargetDragLeave();
}

DWORD BrowserDropDelegate::OnDrop(IDataObject* data_object,
                               DWORD key_state,
                               POINT cursor_position,
                               DWORD effect) {
  POINT client_pt = cursor_position;
  ScreenToClient(GetHWND(), &client_pt);
  webview_->DragTargetDrop(client_pt.x, client_pt.y,
      cursor_position.x, cursor_position.y);

  // webkit win port always returns DROPEFFECT_NONE
  return DROPEFFECT_NONE;
}