views: Move widget/ directory to ui/views.

views/widget/drop_helper.cc

Index: views/widget/drop_helper.cc
diff --git a/views/widget/drop_helper.cc b/views/widget/drop_helper.cc
deleted file mode 100644
index 4e5ce109bc867eac767af9c1d13c6a188e20b79d..0000000000000000000000000000000000000000
--- a/views/widget/drop_helper.cc
+++ /dev/null
@@ -1,156 +0,0 @@
-// 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.
-
-#include "views/widget/drop_helper.h"
-
-#include "ui/base/dragdrop/drag_drop_types.h"
-#include "views/view.h"
-#include "views/widget/widget.h"
-
-namespace views {
-
-DropHelper::DropHelper(View* root_view)
-    : root_view_(root_view),
-      target_view_(NULL),
-      deepest_view_(NULL) {
-}
-
-DropHelper::~DropHelper() {
-}
-
-void DropHelper::ResetTargetViewIfEquals(View* view) {
-  if (target_view_ == view)
-    target_view_ = NULL;
-  if (deepest_view_ == view)
-    deepest_view_ = NULL;
-}
-
-int DropHelper::OnDragOver(const OSExchangeData& data,
-                           const gfx::Point& root_view_location,
-                           int drag_operation) {
-  View* view = CalculateTargetViewImpl(root_view_location, data, true,
-                                       &deepest_view_);
-
-  if (view != target_view_) {
-    // Target changed notify old drag exited, then new drag entered.
-    NotifyDragExit();
-    target_view_ = view;
-    NotifyDragEntered(data, root_view_location, drag_operation);
-  }
-
-  return NotifyDragOver(data, root_view_location, drag_operation);
-}
-
-void DropHelper::OnDragExit() {
-  NotifyDragExit();
-  deepest_view_ = target_view_ = NULL;
-}
-
-int DropHelper::OnDrop(const OSExchangeData& data,
-                       const gfx::Point& root_view_location,
-                       int drag_operation) {
-  View* drop_view = target_view_;
-  deepest_view_ = target_view_ = NULL;
-  if (!drop_view)
-    return ui::DragDropTypes::DRAG_NONE;
-
-  if (drag_operation == ui::DragDropTypes::DRAG_NONE) {
-    drop_view->OnDragExited();
-    return ui::DragDropTypes::DRAG_NONE;
-  }
-
-  gfx::Point view_location(root_view_location);
-  View* root_view = drop_view->GetWidget()->GetRootView();
-  View::ConvertPointToView(root_view, drop_view, &view_location);
-  DropTargetEvent drop_event(data, view_location.x(), view_location.y(),
-                             drag_operation);
-  return drop_view->OnPerformDrop(drop_event);
-}
-
-View* DropHelper::CalculateTargetView(
-    const gfx::Point& root_view_location,
-    const OSExchangeData& data,
-    bool check_can_drop) {
-  return CalculateTargetViewImpl(root_view_location, data, check_can_drop,
-                                 NULL);
-}
-
-View* DropHelper::CalculateTargetViewImpl(
-    const gfx::Point& root_view_location,
-    const OSExchangeData& data,
-    bool check_can_drop,
-    View** deepest_view) {
-  View* view = root_view_->GetEventHandlerForPoint(root_view_location);
-  if (view == deepest_view_) {
-    // The view the mouse is over hasn't changed; reuse the target.
-    return target_view_;
-  }
-  if (deepest_view)
-    *deepest_view = view;
-  // TODO(sky): for the time being these are separate. Once I port chrome menu
-  // I can switch to the #else implementation and nuke the OS_WIN
-  // implementation.
-#if defined(OS_WIN)
-  // View under mouse changed, which means a new view may want the drop.
-  // Walk the tree, stopping at target_view_ as we know it'll accept the
-  // drop.
-  while (view && view != target_view_ &&
-         (!view->IsEnabled() || !view->CanDrop(data))) {
-    view = view->parent();
-  }
-#else
-  int formats = 0;
-  std::set<OSExchangeData::CustomFormat> custom_formats;
-  while (view && view != target_view_) {
-    if (view->IsEnabled() &&
-        view->GetDropFormats(&formats, &custom_formats) &&
-        data.HasAnyFormat(formats, custom_formats) &&
-        (!check_can_drop || view->CanDrop(data))) {
-      // Found the view.
-      return view;
-    }
-    formats = 0;
-    custom_formats.clear();
-    view = view->parent();
-  }
-#endif
-  return view;
-}
-
-void DropHelper::NotifyDragEntered(const OSExchangeData& data,
-                                   const gfx::Point& root_view_location,
-                                   int drag_operation) {
-  if (!target_view_)
-    return;
-
-  gfx::Point target_view_location(root_view_location);
-  View::ConvertPointToView(root_view_, target_view_, &target_view_location);
-  DropTargetEvent enter_event(data,
-                              target_view_location.x(),
-                              target_view_location.y(),
-                              drag_operation);
-  target_view_->OnDragEntered(enter_event);
-}
-
-int DropHelper::NotifyDragOver(const OSExchangeData& data,
-                               const gfx::Point& root_view_location,
-                               int drag_operation) {
-  if (!target_view_)
-    return ui::DragDropTypes::DRAG_NONE;
-
-  gfx::Point target_view_location(root_view_location);
-  View::ConvertPointToView(root_view_, target_view_, &target_view_location);
-  DropTargetEvent enter_event(data,
-                              target_view_location.x(),
-                              target_view_location.y(),
-                              drag_operation);
-  return target_view_->OnDragUpdated(enter_event);
-}
-
-void DropHelper::NotifyDragExit() {
-  if (target_view_)
-    target_view_->OnDragExited();
-}
-
-}  // namespace views